CN202041422U - Experiment clamp used in thermal fatigue experiment - Google Patents
Experiment clamp used in thermal fatigue experiment Download PDFInfo
- Publication number
- CN202041422U CN202041422U CN2011201148031U CN201120114803U CN202041422U CN 202041422 U CN202041422 U CN 202041422U CN 2011201148031 U CN2011201148031 U CN 2011201148031U CN 201120114803 U CN201120114803 U CN 201120114803U CN 202041422 U CN202041422 U CN 202041422U
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- experiment
- thermal fatigue
- hole
- threaded
- bolt
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Abstract
The utility model relates to an experiment clamp used in thermal fatigue experiment; one end of a supporting rod is fixedly connected with a supporting seat; a lower clamping plate is arranged on the upper end surface of the supporting seat; the lower clamping plate is fixed on the supporting seat through two supporting posts symmetrical to each other; a spring, an upper clamping plate and a fixed plate are sheathed on the two supporting posts in sequence; the top ends of the two supporting posts are in threaded connection with nuts; a screw through hole is formed at the central position of the fixed plate; a tightening bolt is arranged inside the screw through hole; and a force sensor is arranged at the lower end of the tightening bolt. The experiment clamp has the following beneficial effects: compared with the traditional experiment clamp used in thermal fatigue experiment, the structure and performance of the clamp are greatly improved so as to realize the structure and size requirements of the clamp in thermal fatigue experiment; the force sensor is arranged inside the lower part of the tightening bolt and connected with a stress-strain gauge through external circuits, so that the clamping force can be obtained after very simple calculation through the reading number of the stress-strain gauge and the thermal fatigue experiment is conveniently performed successfully.
Description
[technical field]
The utility model relates to experiment anchor clamps technical field, specifically a kind of experiment anchor clamps that are used for thermal fatigue test.
[background technology]
In doing elevated temperature heat fatigue experiment process, because experimental piece need place temperature control box, thereby the retained part of experiment anchor clamps also needs to place temperature control box, and link with support bar, pass temperature control box then about hole be fixed on test machine for mechanism.But because the size restrictions of temperature control box, common experiment anchor clamps can not satisfy requirement of experiment.In addition, because the restriction of high temperature experiment condition, experimental piece directly fixed clamp thereby will consider whether test specimen holding force size is enough at the mechanical test machine.For determining whether holding force enough satisfies requirement of experiment, the current experiments anchor clamps are to screw out by the screw-in that screws bolt at present, provide holding force, promptly by the displacement proof stress.Though in theory, calculate holding force, because the difficulty of displacement, the strain property surveyed adopts the method for Theoretical Calculation very complicated by displacement and strain energy.
[summary of the invention]
The purpose of this utility model is exactly will solve above-mentioned deficiency and a kind of experiment anchor clamps that are used for thermal fatigue test are provided, and substitutes the current experiments anchor clamps, has improved the performance of experiment anchor clamps greatly, thereby has made the elevated temperature heat fatigue experiment carry out smoothly.
Design a kind of experiment anchor clamps that are used for thermal fatigue test for achieving the above object, comprise support bar, bearing, lower plate, spring, train wheel bridge, pillar, fixed head, nut and screw bolt, the fixedly connected bearing 9 of described support bar 1 one ends, described bearing 9 upper surfaces are provided with lower plate 8, described lower plate is fixed on the bearing 9 by two symmetrical pillars 5, be with spring 7 successively on described two pillars 5, train wheel bridge 6 and fixed head 4, described two pillar 5 tops nut 3 that is threaded, the center of described fixed head 4 has tapped through hole, be provided with in the described tapped through hole and screw bolt 2, the described bolt lower end part that screws is equipped with force transducer 10, and described force transducer connects stress-strain gage 11 by circuit.
The described center, bolt 2 upper surface that screws has slotted hole; described bolt 2 lower surfaces that screw have the threaded hole that is connected with slotted hole; the described threaded hole force transducer 10 that is threaded; described sensor lower end is threaded and protects cushion block 12, and the circuit of described force transducer 10 is drawn by slotted hole and connected stress-strain gage 11.
The utility model is compared with prior art, novel structure, simple, compare with traditional experiment anchor clamps that are used for thermal fatigue test, the utility model has improved the structure and the performance of anchor clamps greatly, realized the structure and the dimensional requirement of anchor clamps in the thermal fatigue test, owing to be provided with force transducer screwing inside, bolt lower end, and force transducer is connected with stress-strain gage by external circuit, thereby can be by the reading of stress-strain gage, just can draw holding force through very simple calculating, made things convenient for carrying out smoothly of thermal fatigue test, be worthy of popularization.
[description of drawings]
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the partial schematic diagram that screws bolt of the present utility model;
Among the figure: 1, support bar 2, screw bolt 3, nut 4, fixed head 5, pillar 6, train wheel bridge 7, spring 8, lower plate 9, bearing 10, force transducer 11, stress-strain gage 12, protection cushion block.
[embodiment]
Further specify below below in conjunction with accompanying drawing the utility model being done:
As shown in drawings; the utility model comprises support bar; bearing; lower plate; spring; train wheel bridge; pillar; fixed head; nut and screw bolt; the fixedly connected bearing 9 of described support bar 1 one ends; described bearing 9 upper surfaces are provided with lower plate 8; described lower plate is fixed on the bearing 9 by two symmetrical pillars 5; be with spring 7 successively on described two pillars 5; train wheel bridge 6 and fixed head 4; described two pillar 5 tops nut 3 that is threaded; the center of described fixed head 4 has tapped through hole; be provided with in the described tapped through hole and screw bolt 2; the described center, bolt 2 upper surface that screws has slotted hole; described bolt 2 lower surfaces that screw have the threaded hole that is connected with slotted hole; the described threaded hole force transducer 10 that is threaded; described sensor lower end is threaded and protects cushion block 12, and the circuit of described force transducer 10 is drawn by slotted hole and connected stress-strain gage 11.
The utility model is relevant experiment anchor clamps, is used for thermal fatigue test clamping experimental piece.During experiment, the experiment anchor clamps are whole vertically to be placed, and its lower end is that support bar 1 is gripped by test machine for mechanism.When the experiment anchor clamps are installed, keep the lower clamp parallel alignment.Support bar 1 fixedly connected bearing 9, two pillar 5 symmetries are fixedly mounted in the bearing 9 in the experiment anchor clamps, and lower plate 8 is fixed on the bearing 9 by two pillars 5.Lay two springs 7 by two pillars 5, spring 7 upper ends contact with train wheel bridge 6, and spring 7 lower ends contact with lower plate 8.Fixed head 4 is fixed on two pillars 5, and pillar 5 upper ends screw nut 3.Screw bolt 2 and pass fixed head 4, and be threaded, provide holding force by the back-out that is threaded into that screws bolt with fixed head 4.By this holding force, testpieces is clamped between train wheel bridge 6 and the lower plate 8.Unclamp screw bolt 2 after, train wheel bridge 6 is returned to initial position by the screen resilience that spring 7 provides.
These anchor clamps adopt force transducer; be installed in and screw bolt 2 lower ends; can have threaded hole with screwing bolt 2 lower surfaces; by threaded hole installing force sensor 10; the sensor lower end is threaded and protects cushion block 12; avoid directly contacting with holder, screw center, bolt 2 tops and have slotted hole, force transducer 10 external connections connect stress-strain gage 11 by this hole.By the reading of stress-strain gage 11, just can draw holding force through simple calculating.
The utility model is not subjected to the restriction of above-mentioned embodiment; other any do not deviate from change, the modification done under spirit of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (2)
1. experiment anchor clamps that are used for thermal fatigue test, comprise support bar (1), bearing (9), lower plate (8), spring (7), train wheel bridge (6), pillar (5), fixed head (4), nut (3) and screw bolt (2), it is characterized in that: the described support bar fixedly connected bearing of (1) one end (9), described bearing (9) upper surface is provided with lower plate (8), described lower plate (8) is fixed on the bearing (9) by two symmetrical pillars (5), be with spring (7) on described two pillars (5) successively, train wheel bridge (6) and fixed head (4), described two pillars (5) top nut (3) that is threaded, the center of described fixed head (4) has tapped through hole, be provided with in the described tapped through hole and screw bolt (2), described bolt (2) lower end part that screws is equipped with force transducer (10), and described force transducer (10) connects stress-strain gage (11) by circuit.
2. the experiment anchor clamps that are used for thermal fatigue test as claimed in claim 1; it is characterized in that: described bolt (2) center, upper surface that screws has slotted hole; described bolt (2) lower surface that screws has the threaded hole that is connected with slotted hole; the described threaded hole force transducer (10) that is threaded; described sensor (10) lower end is threaded and protects cushion block (12), and the circuit of described force transducer (10) is drawn by slotted hole and connected stress-strain gage (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201148031U CN202041422U (en) | 2011-04-19 | 2011-04-19 | Experiment clamp used in thermal fatigue experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201148031U CN202041422U (en) | 2011-04-19 | 2011-04-19 | Experiment clamp used in thermal fatigue experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202041422U true CN202041422U (en) | 2011-11-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201148031U Expired - Fee Related CN202041422U (en) | 2011-04-19 | 2011-04-19 | Experiment clamp used in thermal fatigue experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202041422U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442120A (en) * | 2016-12-02 | 2017-02-22 | 西南交通大学 | Fatigue test clamp device for T-shaped corner joint |
| CN108709808A (en) * | 2018-08-03 | 2018-10-26 | 奇瑞万达贵州客车股份有限公司 | A kind of stretching force detecting apparatus |
-
2011
- 2011-04-19 CN CN2011201148031U patent/CN202041422U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442120A (en) * | 2016-12-02 | 2017-02-22 | 西南交通大学 | Fatigue test clamp device for T-shaped corner joint |
| CN108709808A (en) * | 2018-08-03 | 2018-10-26 | 奇瑞万达贵州客车股份有限公司 | A kind of stretching force detecting apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20120419 |