CN103163311A - Detection clamp and detection method special for action acceleration of overload switch - Google Patents
Detection clamp and detection method special for action acceleration of overload switch Download PDFInfo
- Publication number
- CN103163311A CN103163311A CN2011104048985A CN201110404898A CN103163311A CN 103163311 A CN103163311 A CN 103163311A CN 2011104048985 A CN2011104048985 A CN 2011104048985A CN 201110404898 A CN201110404898 A CN 201110404898A CN 103163311 A CN103163311 A CN 103163311A
- Authority
- CN
- China
- Prior art keywords
- push rod
- overload
- overload switch
- acceleration
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
A detection clamp special for action acceleration of an overload switch comprises a base, a push rod, a top rod, a spring, a fixing cover and a hand shank. The base is provided with a positioning step on which the acceleration overload switch is installed, a threaded installation hole is formed on one side of the base, and the spring is placed on the top rod in a sleeved mode. After abutted, the fixing cover and the hand shank extend into a threaded hole on one side of the base and are fixed, and the push rod is fixedly connected to a corresponding position of a spring tensile and compression testing machine. By means of the special detection clamp and a detection method in which a resistance force magnitude received at a moment when a sensitive mechanism of the overload switch is locked is converted into an action acceleration value, a tradition detection method that acceleration magnitude measured by applying of a shock testing machine is replaced, the detection clamp and the detection method are simple, fast, convenient, low in cost and capable of achieving high-efficient and practical detection effects.
Description
Technical field
The present invention relates to a kind of acceleration overload switch motion acceleration detection dedicated test fixture and detection method, belong to switch control element field, be applicable to the action acceleration with large impact acceleration overload switch is detected.
Background technology
Along with the fast development of modern model system, acceleration overload switch shock resistance acceleration index is proposed requirements at the higher level, make traditional action acceleration detection method be difficult to satisfy the detection of new model and batch produce schedule requirement.The action acceleration detection method of exploring highly effective replaces traditional detection method to become a kind of inevitable development trend.The tradition acceleration detection method generally adopts the dropping shock testing table to carry out, and detects brief acceleration overload sensitive direction and the coaxial installation of impact direction.After shock testing machine promotes and falls, detect the overload switch operating state by pilot lamp, and adopt sensor to gather the action accekeration of overload switch single-impact sensitivity.The deficiency of this detection method is: when overload switch action acceleration range is very little, traditional detection method can satisfy testing requirement, but when action accekeration scope reaches hundreds of to thousands of g, adopt traditional dropping shock formula testing table to detect and just seem at a loss what to do.Although adopt airbag boost air formula shock testing machine can satisfy testing requirement, cost is too high, and detection efficiency is low, can't satisfy modern model batch production requirements.
Summary of the invention
The objective of the invention is the limitation for the existence of above-mentioned overload switch action acceleration detection method, a kind of overload switch acceleration detection unit clamp is provided, the detection method of using this detection fixture is provided simultaneously.
Described acceleration overload switch motion acceleration dedicated test fixture, formed by base, push rod, push rod, spring, fixed cap and handle, described base is provided with the positioning step that the acceleration overload switch is installed, one side is provided with threaded mounting hole, described top stem casing upper spring, fixed cap and with after handle docks stretches in the threaded mounting hole of described base one side and fixes with sidewall, and described push rod is fixedly attached to the spring tension and compression testing machine relevant position.
described acceleration overload switch motion acceleration detection method, to use above-mentioned dedicated test fixture to detect, after the steps include: the installation and measuring fixture, first pull the handle that detects fixture, make the push rod Compress Spring, again overload switch to be detected is placed on the positioning step of base, then release handle, make spring reset, push rod compresses overload switch, push rod is installed on the spring tension and compression testing machine on base top, perpendicular to overload switch, coaxial with overload sensitive mechanism, depress push rod, when beginning to contact with overload sensitive mechanism, push rod first power value digital display device compression travel and force of compression value are returned to zero, then push rod continues the compressive overload sensitive mechanism, snap in the locking draw-in groove moment of overload sensitive mechanism when latch mechanism, record the pressure reading on power value digital display device, push rod is resetted, pull handle to make the push rod Compress Spring, push rod leaves overload switch, take off tested overload switch, utilize formula a=F/m=F resistance/m to calculate action accekeration corresponding to overload switch, namely complete test process.
The present invention detects fixture by design specialized, adopt detection overload sensitive mechanism action locking moment suffered resistance power value to be scaled the action acceleration figure and replace traditional detection method, reach the reduction testing cost, raise the efficiency, solve the purpose of large impact acceleration overload switch acceleration detection means.The overloading acceleration value that alternative employing shock table is measured, simple and fast, with low cost, realize the detection effect of highly effective.
Description of drawings
Fig. 1 is overload switch acceleration detection method overload sensitive mechanism force analysis figure of the present invention.
Fig. 2 is that overload switch acceleration detection method of the present invention detects principle assumption diagram.
Fig. 3 is acceleration overload switch acceleration detection method dedicated test clamp structure schematic diagram of the present invention.
Fig. 4 is overload switch acceleration detection detection method schematic diagram of the present invention.
In figure: 1-base, 2-push rod, 3-push rod, 4-spring, 5-fixed cap, 6-screw, 7-handle, 9-overload sensitive mechanism, 10-latch mechanism.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 3, overload switch acceleration detection dedicated test fixture of the present invention is to utilize spring tension and compression testing machine to realize the locking of overload switch overload sensitive mechanism overload.This dedicated test fixture comprises: base 1, push rod 2, push rod 3, spring 4, fixed cap 5, screw 6 and handle 7, base 1 processing positioning step, provide positioning supports for overload switch is installed, and at its opposite side, threaded hole is set, support for fixed cap 5 provides location and installation.Push rod 2 is flanged dish axis structure, and top machining shaft screw thread is convenient to install with spring tension and compression testing machine, fixed cap 5 provides installing space for push rod 3, and support for spring provides radial location, machining shaft screw thread on fixed cap 5 steps is realized the connection with base 1.Push rod 3 head ends arrange the spring positioning step and realize spring 4 location, and tail end arranges threaded hole, and spring 4 provides pre-pressing function for overload switch.First spring 4 is installed on fixed cap 5 and push rod 3 during assembling, then with screw 6, push rod 3, handle 7 are fastenedly connected, then be installed on base 1 by fixed cap 5.
Fig. 4 is acceleration overload switch acceleration detection method process schematic diagram of the present invention.the method is to use aforementioned dedicated test fixture, after the steps include: to install the dedicated test fixture, first pull the handle 7 that detects fixture, make push rod 3 Compress Springs 4, again overload switch to be detected is placed on the positioning step of base 1, then release handle, spring 4 is resetted, push rod 3 compresses overload switch, push rod 2 is installed on the spring tension and compression testing machine on base top, perpendicular to overload switch, coaxial with overload sensitive mechanism 9, depress push rod 2, when beginning to contact with overload sensitive mechanism 9, push rod 2 first power value digital display device compression travel and force of compression value are returned to zero, then push rod 2 continues compressive overload sensitive mechanism 9, snap in the locking draw-in groove moment of overload sensitive mechanism 9 when latch mechanism 10, record the pressure reading on power value digital display device, push rod 2 is resetted, pull handle 7 to make push rod 3 Compress Springs 4, push rod 3 leaves overload switch, take off tested overload switch, utilize formula a=F/m=F resistance/m to calculate action accekeration corresponding to overload switch, namely complete test process.
Fig. 1, Fig. 2 are the explanations of and principle stressed to detection method of the present invention, and wherein Fig. 1 is overload sensitive mechanism force analysis figure in the acceleration overload switch in the present invention.Shown in figure, during the overload switch action, the thrust that the outside overload of overload sensitive mechanism impression produces is F=ma, the resistance that is subject to has spring counter-force P, throw-over gear counter-force fj, latch mechanism friction force fs, balancing weight and orienting sleeve Contact Pair friction force fd, the make a concerted effort inertia thrust F balance that produces with overload switch sensitive acceleration overload of the resistance that snaps in mechanical interlocking locating groove moment when latch mechanism.
Fig. 2 is that acceleration overload switch acceleration detection method of the present invention detects principle assumption diagram.Shown in figure, push rod 2 is rigidly fixed on spring tension and compression testing machine, power value digital display device and spring tension and compression testing machine are by electrical connection, the function of spring tension and compression testing machine is to promote push rod 29 move and collection signal is transferred to power value digital display device along compression direction to overload sensitive mechanism, and the function of power value digital display device is that testing result is shown.
This acceleration detection method.
Claims (3)
1. acceleration overload switch motion acceleration dedicated test fixture, it is characterized in that: this detection fixture is by base (1), push rod (2), push rod (3), spring (4), fixed cap (5) and handle (7) form, described base (1) is provided with the positioning step that the acceleration overload switch is installed, be provided with threaded mounting hole in the one side, described push rod (3) cover upper spring (4), fixed cap (5) and with after handle (7) docks, stretch in the threaded mounting hole of described base 1 one sides and fix with sidewall, described push rod (2) is fixedly attached to the spring tension and compression testing machine relevant position.
2. acceleration overload switch motion acceleration dedicated test fixture as claimed in claim 1, it is characterized in that: described push rod (2) is flanged dish axis structure, and an end is provided with male thread, is used for being connected with spring tension and compression testing machine.
3. acceleration overload switch motion acceleration detection method, it is characterized in that: the method right to use requires 1 described dedicated test fixture, after the steps include: the installation and measuring fixture, first pull the handle (7) that detects fixture, make push rod (3) Compress Spring (4), again overload switch to be detected is placed on the positioning step of base (1), then release handle, spring (4) is resetted, push rod (3) compresses overload switch, push rod (2) is installed on the spring tension and compression testing machine on base top, perpendicular to overload switch, coaxial with overload sensitive mechanism (9), depress push rod (2), first power value digital display device compression travel and force of compression value are returned to zero when beginning to contact with overload sensitive mechanism (9) at push rod (2), then push rod (2) continues compressive overload sensitive mechanism (9), snap in the locking draw-in groove moment of overload sensitive mechanism (9) when latch mechanism (10), record the pressure reading on power value digital display device, push rod (2) is resetted, pull handle (7) to make push rod (3) Compress Spring (4), push rod (3) leaves overload switch, take off tested overload switch, utilize formula a=F/m=F resistance/m to calculate action accekeration corresponding to overload switch, namely complete test process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110404898.5A CN103163311B (en) | 2011-12-08 | 2011-12-08 | Detection clamp and detection method special for action acceleration of overload switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110404898.5A CN103163311B (en) | 2011-12-08 | 2011-12-08 | Detection clamp and detection method special for action acceleration of overload switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103163311A true CN103163311A (en) | 2013-06-19 |
| CN103163311B CN103163311B (en) | 2014-12-10 |
Family
ID=48586568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110404898.5A Active CN103163311B (en) | 2011-12-08 | 2011-12-08 | Detection clamp and detection method special for action acceleration of overload switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103163311B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101505050A (en) * | 2009-03-16 | 2009-08-12 | 桂林航天电子有限公司 | Electronic acceleration overload relay and using method therefor |
| CN101604582A (en) * | 2008-06-13 | 2009-12-16 | 施耐德电器工业公司 | The device that is used for controlling and applying contact pressure that is used for the electric switch unit |
| CN101667507A (en) * | 2008-09-04 | 2010-03-10 | 贵州航天电器股份有限公司 | Acceleration overload switch with high-low-pass bidirectional acceleration signal output |
-
2011
- 2011-12-08 CN CN201110404898.5A patent/CN103163311B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101604582A (en) * | 2008-06-13 | 2009-12-16 | 施耐德电器工业公司 | The device that is used for controlling and applying contact pressure that is used for the electric switch unit |
| CN101667507A (en) * | 2008-09-04 | 2010-03-10 | 贵州航天电器股份有限公司 | Acceleration overload switch with high-low-pass bidirectional acceleration signal output |
| CN101505050A (en) * | 2009-03-16 | 2009-08-12 | 桂林航天电子有限公司 | Electronic acceleration overload relay and using method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103163311B (en) | 2014-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110823434B (en) | Plum blossom contact elastic pressure detection device | |
| CN102288886A (en) | Device for rapid detection of electrical performance of cell | |
| CN106500896A (en) | The detection means of spring force | |
| CN102721490A (en) | Passive pressure sensor based on giant magnetostrictive material Terfenol-D | |
| CN104359663A (en) | Mechanical life testing device for molded case circuit breakers | |
| CN202092808U (en) | Hysteresis torque and ripple torque tester of motor | |
| CN203109879U (en) | Clamp spring assembling and detecting tool | |
| CN202141428U (en) | Novel radial strain measuring apparatus | |
| CN202757714U (en) | Passive pressure transducer based on giant magnetostrictive material (Terfenol-D) | |
| CN103163311B (en) | Detection clamp and detection method special for action acceleration of overload switch | |
| CN204515090U (en) | A kind of motor performance pick-up unit | |
| CN202420377U (en) | Dynamic thickness testing device for absorbed glass mat (AGM) separators of storage batteries | |
| CN205562289U (en) | Accurate tensile testing machine | |
| CN201527314U (en) | Disk-shaped spring elasticity testing device | |
| CN201387303Y (en) | Hole positioning detection mechanism | |
| CN208968723U (en) | A kind of synchronizer balance spring detection device | |
| CN203148606U (en) | Novel force sensor for measuring breaker contact | |
| CN203658032U (en) | Apparatus of testing separable and shedding electric connector inserting force | |
| CN202886558U (en) | Low voltage switch mechanical performance detection device | |
| CN203414363U (en) | Testing machine for testing stiffness of upper material | |
| CN102508033A (en) | Device for testing accelerometer shell | |
| CN201332066Y (en) | Novel operating insulator for circuit breaker | |
| CN211783221U (en) | Sealing ring diameter rapid detection device for oil cylinder production | |
| CN201983724U (en) | Double position inner hole measuring device | |
| CN102749162B (en) | Motor torque load detecting device of food waste disposer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |