CN202166575U - Critical impact damaging energy measuring device for glass pipe or glass rod - Google Patents
Critical impact damaging energy measuring device for glass pipe or glass rod Download PDFInfo
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- CN202166575U CN202166575U CN2011201840963U CN201120184096U CN202166575U CN 202166575 U CN202166575 U CN 202166575U CN 2011201840963 U CN2011201840963 U CN 2011201840963U CN 201120184096 U CN201120184096 U CN 201120184096U CN 202166575 U CN202166575 U CN 202166575U
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Abstract
The utility model discloses a critical impact damaging energy measuring device for a glass pipe or a glass rod, belonging to the field of mechanical property measurement of glass material. The critical impact damaging energy measuring device comprises a base having a level adjusting bolt; a longitudinal adjusting mechanism on which a cross beam is arranged is mounted on the base; two U-shaped brackets for shifting to the left and right on the cross beam are symmetrically arranged on the cross beam; two U-shaped brackets for bearing the glass pipe or the glass bar are fixed to the cross beam through bolts; an upright machine frame fixed with a vertical adjusting mechanism is mounted on one side of the base; a jaw shaped swinging hammer is mounted on the machine frame through a rotary shaft; a digital displaying system consists of a digital display and a position sensor; the position sensor is coupled with the rotary shaft; the jaw shaped swinging hammer is internally embedded or welded with a wedge-shaped body on the straight side at the inside of a jaw; an arc face with arc R as R=2-6 mm is mounted at the front end of the wedge-shaped body; and the whole gravity of jaw-shaped swinging hammer is placed on the arc face of the wedge-shaped body. The critical impact damaging energy measuring device achieves the measurement on the critical impact damaging energy of the glass pipe or the glass stick.
Description
Technical field
Be used for the damaged energy measuring apparatus of glass tube or glass bar critical impulse, it belongs to glass material mechanical property field of measuring technique.
Background technology
Glass material belongs to hard brittle material; Its impact strength is the weak link in the glass material use; It is an important indicator of estimating glass material or glassware safety in utilization, and the damaged energy of critical impulse of therefore accurately measuring glass material is significant
At present, three kinds of typical impact strength measuring methods are arranged, mainly comprise: the shot impact experiment method that safety glass uses for glassware; The ball falling impact experimental technique that sheet glass uses; The pendulum impact experiment method that Bottle & Can uses.
The shot impact experiment method of safety glass is to be used to estimate main method plate shaped or dull and stereotyped tempered glass of arc or laminated safety glass, is through the sideshake percussive action, uses the 5-10 kilogram to rise to the effect energy of higher-quality shot simulation external shock thing; Shot is lain in rope one end; It is risen to the higher position, discharge then, act on the tilted-putted safety glass through shot sideshake kinetic energy; Be used to estimate the safe reliability of glass; Its measurement result shows as damaged and not damaged two kinds of forms, and its measuring process only can be come constantly change impact energy through the quality mode of adjustment shot height or shot; The ball falling impact experimental technique; Vertically act on the surface of plate glass through steel ball free falling bodies mode; Be mainly used in sheet glass or the evaluation of tempered glass shock resistance; Service quality comprises the steel ball of several kinds of specifications such as 110g, 227g, 500g, and its measurement result also is merely damaged and not damaged two kinds of forms of characterization; The pendulum impact experiment method that glass bottle and jar uses; This method is mainly used in the measurement of the shock resistance of glass bottle and jar, and the glass bottle and jar vertical fixing rises to corresponding height with pendulum on experimental machine; Make it have initial potential energy; Discharge then, through the shoulder or the body of pendulum lateral impact glass bottle and jar, its measurement result also only shows as damaged and not damaged two kinds of forms.Therefore, the measurement result of above-mentioned three kinds of measuring methods is merely " breakage " and " not damaged " two kinds of forms of characterization, so three kinds of experimental techniques all belong to the observational measurement method.
The main cause that above-mentioned three kinds of methods can not be used for the accurate measurement of glass tube or the damaged energy of glass bar critical impulse is; Glass tube or glass bar belong to circular product; Has only the accurate percussive action of alluvium in glass tube or place, glass bar arc surface summit; Could obtain the damaged energy measurement of the most accurate critical impulse; Otherwise because the out of true of application point can cause alluvium to produce lateral sliding at glass tube or glass bar, measurement result is greatly increased, influence accurate measurement the critical value of glass tube or glass bar.The shot bag shape of shot impact experiment appearance is similar to the pears shape.About the nearly 0.5-1.5L of volume; Inside takes up the materials such as steel ball of different size, its outer shape have complicacy and a uncertainty, be difficult to guarantee that it contacts with rigidity with the quadrature of glass tube or glass bar; Even also can occur because experimental machine stability is bad; Cause the shot bag can not accurately hit in the position of glass tube or glass bar requirement, particularly as far as the glass tube or the glass bar of small dimension, the deviation of existence is more obvious; The ball falling impact experimental technique; Because falling sphere is the movement of falling object, have only the entire machine horizontal adjustment well, must guarantee that glass tube or glass bar are in horizontal positioned simultaneously; Glass tube or glass bar axis and steel ball center are in a plane; Can guarantee that just the steel ball frontal impact acts on glass tube or glass bar top, and actual conditions are to be difficult to ensure, can't produce very high glass tube of linearity or glass bar mainly due to existing industrial level; Therefore; The side of glass tube or glass bar can appear impinging upon behind the steel ball free falling bodies in most applications, causes the damaged energy of the impact that is produced significantly to increase, and can not objectively respond the damaged energy of critical impulse of glass tube or glass bar; Glass bottle and jar pendulum impact experiment machine; Though can realize positive bump basically, its pendulum design is basic close with hammer, and the hammer end is that passivity is conical; Guarantee that contact point is accurate; But this machine is difficult to the glass tube or the glass bar of vertical clamping different size, for measuring glass tube or the glass bar diameter goods less than 30mm, also still exists to pack to guarantee the accurate of rum point.
Through above-mentioned analysis, find above-mentioned three kinds of typical impact experimental machine except can not ensureing that the percussive action thing contacts with the accurate front of glass tube or glass bar sample, also have the damaged energy of critical impulse of energy measurement glass tube not or glass bar.
The utility model content
The jaw shape pendulum impact experiment machine of the utility model is used for the measurement of the damaged energy of glass tube or glass bar critical impulse.Its know-why is that the initial impact potential energy that utilizes jaw shape pendulum to be had carries out the quadrature bump to goods such as glass tube or glass bars; Initial impact potential energy requires greater than glass tube or the damaged energy of glass bar critical impulse; The energy that the damaged energy of the impact of goods such as glass tube or glass bar is absorbed when equaling its fragmentation; Jaw shape pendulum dump energy changes into pendulum rising energy, and its expression formula is:
E
Dash=E
Just-E
Surplus
In the formula, E
Dash-glass tube or glass bar impact damaged energy, J;
E
JustPotential energy during-pendulum initial position, J;
E
Surplus-pendulum impacts remaining energy, J;
Be used for the damaged energy measuring apparatus of glass tube or glass bar critical impulse; It is characterized in that: comprise the base that has the horizontal adjustment screw; The base top is the front and back governor motions; On the governor motion, two abilities were installed on the crossbeam in the U-shaped support symmetry of move left and right on the crossbeam before and after crossbeam was placed on, above-mentioned two the U-shaped supports that are used to take up glass tube or glass bar through screw retention at crossbeam;
One side of base is equipped with vertical frame, and frame is fixed with vertically modulating mechanism, and jaw shape pendulum is installed on the frame through rotating shaft, and digital display system comprises nixie display and position sensor, and this position sensor connects with rotating shaft mutually;
Described jaw shape pendulum is embedded or be welded with sphenoid on the inboard straight flange of jaw, and the front end of sphenoid is an arc surface, and its circular arc is R=2-6mm; The whole center of gravity of jaw shape pendulum is positioned on the arc surface of sphenoid.
The spacing of two stands is that 50-2000mm is adjustable.
Use said device and be used for glass tube or the damaged energy measurement method of glass bar critical impulse, it is characterized in that:
Glass tube or glass bar are parallel to crossbeam to be placed, and keeps the spacing more than the 50mm with crossbeam,
Through having the jaw shape pendulum of initial potential energy; The glass tube that is in place at potential energy zero point or glass bar carried out the perpendicular quadrature bump; It is damaged that glass tube or glass bar are produced; Jaw shape pendulum dump energy changes into the rising energy, and the damaged energy of the critical impulse of glass tube or glass bar is exactly the energy that glass tube or glass bar are absorbed when being hit, and its expression formula is: E
Dash=E
Just-E
Surplus, E
DashBe glass tube or the damaged energy of glass bar critical impulse; E
JustPotential energy for jaw shape pendulum initial position; E
SurplusBe the remaining energy of jaw shape pendulum;
The impact site of jaw shape pendulum and realizes that through jaw shape Mechanical Builds the mass cg of pendulum drops on this arc surface on the arc surface of the inboard straight flange of jaw.
The utility model can be realized the measurement of the damaged energy of critical impulse of glass tube or glass bar well.
Description of drawings
Fig. 1 jaw shape pendulum impact experiment machine structural representation.
1-horizontal adjustment screw; The 2-base; The 3-crossbeam; The 4-support; Governor motion before and after the 5-; The 6-frame; 7-jaw shape pendulum; The 8-vertically modulating mechanism; The 9-digital display system; 10-glass tube or glass bar;
Structural representation when Fig. 2 jaw shape pendulum and glass tube impact.
Fig. 3 Fig. 3 is the synoptic diagram of the A-A section of Fig. 2.
Embodiment
Jaw shape pendulum impact experiment machine mainly partly is made up of base, horizontal adjustment, frame, jaw shape pendulum, support, vertically modulating mechanism, front and back governor motion, digital display system etc.
Pendulum is designed to jaw shape; Mainly be on the shock surface of pendulum for the mass cg position that makes pendulum; Its jaw shape also can satisfy the outer contoured features to glass tube or glass bar well in addition, and when quadrature impacted, pendulum did not produce mutual friction mutually or interference with glass tube or glass bar.The initial potential energy of pendulum can be the 0.35-100.0 joule; Mainly with the initial mass of pendulum and highly relevant, its initial potential energy expression formula is mgh, and m is the quality of pendulum; Unit: kilogram; G is an acceleration of gravity, and h is a pendulum center of gravity initial position to its free center of gravity place difference in height when sagging, unit: rice.
The rectangle that base adopts metal casting or steel plate to be welded must be removed the stress that it generates through overaging or thermal treatment, and base is used for framework for support, front and back governor motion, crossbeam, support, pendulum, vertically modulating mechanism, digital display system.The base quality must be guaranteed the stability that experimental machine is whole greater than 20 kilograms.
The horizontal adjustment screw retention adopts three horizontal adjustment screws in base below, three horizontal adjustment screw arrangement in wherein three limits of base bottom near outside left, three horizontal adjustment screw arrangement are symmetrical isosceles triangle.Regulate the up-down of base through rotating the horizontal adjustment screw, realize regulating the horizontal purpose of base.
Governor motion is divided into vertically modulating mechanism and front and back governor motion, and governor motion adopts the screw rod slide block structure, and the slide block of vertically modulating mechanism carries the pendulum upper mechanism, and the slide block of front and back governor motion carries crossbeam and support.Vertically modulating mechanism is used to regulate pendulum and impacts contact point, and this contact point is the centre of gravity place of pendulum, and the front and back governor motion is guaranteed pendulum when freedom is sagging, and the shock surface of pendulum and glass tube or glass bar outer surface just join.
Frame is fixed in the right side of base, and frame has certain altitude, and height is at 300-800mm.It is used for fixing vertically modulating mechanism, also has rotating shaft and digital display system.
On the slide block of governor motion, support was installed on the crossbeam before and after crossbeam was installed on, and crossbeam is steel section bar or aluminium section; Support is used to carry diameter 4-300mm glass tube or glass bar; Glass tube or glass bar are parallel to the crossbeam placement and have spacing, support to have U type breach, are convenient to the support and the placement of glass tube or glass bar; Set spacing 50-2000mm, and can regulate as required.
Digital display system comprises that the group of four figures shows and position sensor, and position sensor is used for measuring pliers degree of lip-rounding pendulum initial position and impacts the extreme higher position that dump energy rises pendulum.
The impact site of described pendulum should be jaw shape pendulum center of gravity position; Said position is embedded on the inboard straight flange of jaw of pendulum, and the Hardmetal materials Quenching Treatment is adopted at this position, and it is shaped as sphenoid; The sphenoid front end is an arc surface, and arc size is R=2-6mm.
Use the glass tube or the damaged energy measuring apparatus of glass bar critical impulse of the utility model, total chooses six kinds of specification glass pipes or glass bar carries out test experiments, measures by 10 every group, averages, and measurement result is as shown in table 1.
Table 1
Claims (2)
1. be used for the damaged energy measuring apparatus of glass tube or glass bar critical impulse; It is characterized in that: comprise the base that has the horizontal adjustment screw; The base top is the front and back governor motions; On the governor motion, two abilities were installed on the crossbeam in the U-shaped support symmetry of move left and right on the crossbeam before and after crossbeam was placed on, above-mentioned two the U-shaped supports that are used to take up glass tube or glass bar through screw retention at crossbeam;
One side of base is equipped with vertical frame, and frame is fixed with vertically modulating mechanism, and jaw shape pendulum is installed on the frame through rotating shaft, and digital display system comprises nixie display and position sensor, and this position sensor connects with rotating shaft mutually;
Described jaw shape pendulum is embedded or be welded with sphenoid on the inboard straight flange of jaw, and the front end of sphenoid is an arc surface, and its circular arc is R=2-6mm; The whole center of gravity of jaw shape pendulum is positioned on the arc surface of sphenoid.
2. device according to claim 1 is characterized in that: the spacing of two stands is that 50-2000mm is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201840963U CN202166575U (en) | 2011-06-02 | 2011-06-02 | Critical impact damaging energy measuring device for glass pipe or glass rod |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201840963U CN202166575U (en) | 2011-06-02 | 2011-06-02 | Critical impact damaging energy measuring device for glass pipe or glass rod |
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| CN202166575U true CN202166575U (en) | 2012-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201840963U Expired - Lifetime CN202166575U (en) | 2011-06-02 | 2011-06-02 | Critical impact damaging energy measuring device for glass pipe or glass rod |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338721A (en) * | 2011-06-02 | 2012-02-01 | 北京工业大学 | Method and device for measuring critical impact breakage energy used for glass tube or glass rod |
| CN102645402A (en) * | 2012-04-18 | 2012-08-22 | 洛阳兰迪玻璃机器股份有限公司 | Toughened glass online detection device |
| CN117168282A (en) * | 2023-09-07 | 2023-12-05 | 沧州四星光热玻璃有限公司 | Straightness accuracy detection device is used in glass pipe production |
-
2011
- 2011-06-02 CN CN2011201840963U patent/CN202166575U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338721A (en) * | 2011-06-02 | 2012-02-01 | 北京工业大学 | Method and device for measuring critical impact breakage energy used for glass tube or glass rod |
| CN102338721B (en) * | 2011-06-02 | 2013-08-21 | 北京工业大学 | Method and device for measuring critical impact breakage energy used for glass tube or glass rod |
| CN102645402A (en) * | 2012-04-18 | 2012-08-22 | 洛阳兰迪玻璃机器股份有限公司 | Toughened glass online detection device |
| CN117168282A (en) * | 2023-09-07 | 2023-12-05 | 沧州四星光热玻璃有限公司 | Straightness accuracy detection device is used in glass pipe production |
| CN117168282B (en) * | 2023-09-07 | 2024-05-28 | 沧州四星光热玻璃有限公司 | Straightness accuracy detection device is used in glass pipe production |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120314 |
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| CX01 | Expiry of patent term |