CN109406305B - Pendulum bob impact force sensor experimental device - Google Patents
Pendulum bob impact force sensor experimental device Download PDFInfo
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- CN109406305B CN109406305B CN201811148681.0A CN201811148681A CN109406305B CN 109406305 B CN109406305 B CN 109406305B CN 201811148681 A CN201811148681 A CN 201811148681A CN 109406305 B CN109406305 B CN 109406305B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0039—Hammer or pendulum
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- General Health & Medical Sciences (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention relates to the technical field of force sensors, in particular to a pendulum bob impact force sensor experimental device which comprises a bottom plate, a supporting plate, a circular ring, a wire take-up mechanism, a pull rope, a pendulum bob, a force sensor positioning mechanism, a pendulum bob positioning mechanism and an electric cabinet, wherein the bottom plate is fixedly connected with the supporting plate, the supporting plate consists of a transverse plate and a vertical plate, and the wire take-up mechanism, the circular ring and the pendulum bob positioning mechanism are sequentially and fixedly connected to the transverse plate of the supporting plate from left to right; one end of the pull rope movably penetrates through the ring to be fixedly connected with the pendulum bob, the other end of the pull rope is connected with the take-up mechanism, the force sensor positioning mechanism is arranged on the vertical plate of the supporting plate, and the PLC in the electric cabinet is electrically connected with the force sensor.
Description
Technical Field
The invention relates to the technical field of force sensors, in particular to a pendulum bob impact force sensor experimental device.
Background
The force sensor is a device for converting the magnitude of force into related electric signals, the force is a direct cause for the change of the motion of a substance, and the force sensor can detect mechanical quantities such as tension, pressure, weight, torque, internal stress, strain and the like. The specific devices comprise metal strain gauges, pressure sensors and the like, and become indispensable core components in power equipment, engineering machinery, various machine tools and industrial automation systems.
In order to guarantee the quality of product in force sensor's production manufacturing process, need detect the force sensor of production, one of them detection mode is to carrying out pendulum impact experiment test to force sensor, and current pendulum impact experiment test mode needs the manual work to lift the pendulum, then releases the pendulum, owing to think that the operation has great uncertainty, this will make experimental data produce certain error, causes the inaccurate problem of test.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an experimental apparatus for pendulum impact force sensor, which is used to solve the problems of labor consumption and low accuracy of the existing pendulum testing method.
In order to achieve the above objects and other related objects, the invention discloses a pendulum bob impact force sensor experimental device, which comprises a bottom plate, a supporting plate, a circular ring, a take-up mechanism, a pull rope, a pendulum bob, a force sensor positioning mechanism, a pendulum bob positioning mechanism and an electric cabinet, wherein the bottom plate is fixedly connected with the supporting plate, the supporting plate consists of a transverse plate and a vertical plate, and the transverse plate of the supporting plate is fixedly connected with the take-up mechanism, the circular ring and the pendulum bob positioning mechanism from left to right in sequence; one end of the pull rope movably penetrates through the ring to be fixedly connected with the pendulum bob, the other end of the pull rope is connected with the take-up mechanism, the vertical plate of the supporting plate is provided with a force sensor positioning mechanism, and the PLC in the electric cabinet is electrically connected with the force sensor.
Preferably: the take-up mechanism comprises a U-shaped support plate I fixedly connected to a transverse plate of the support plate, the inner walls of two sides of the support plate I are rotatably connected with a take-up roller, a rotating handle is fixedly connected to a rotating shaft at one end of the take-up roller, and the pull rope is fixedly connected with the take-up roller.
Preferably: the force sensor positioning mechanism comprises a fixed plate and a vertical sliding hole formed in a vertical plate of the supporting plate, sliding grooves are formed in the front end and the rear end of the fixed plate respectively, the fixed plate is connected with the sliding hole in a sliding mode through the sliding grooves, a placing groove is formed in the upper end of the fixed plate, and a force sensor is placed in the placing groove; the left side wall of the placing groove is provided with a notch for placing a wire end of the force sensor, and the right side wall of the placing groove is provided with an impact port; the supporting plates at the front end and the rear end of the sliding hole are respectively and uniformly provided with a plurality of vertically arranged threaded holes, and the fixing plate is fixed on the threaded holes through bolts.
Preferably: the pendulum positioning mechanism comprises a second support plate fixedly connected to a transverse plate of the support plate, and a slide wire opening is formed in the middle of the lower plane of the second support plate; the right plane of the second support plate is fixedly connected with two equal-height cross beam plates, and the two cross beam plates are respectively arranged at the front end and the rear end of the slide wire port; the left end and the right end of the cross beam plate are respectively and rotatably connected with an L-shaped limiting rod penetrating through the cross beam plate, the limiting rod consists of a vertical rod and a horizontal rod fixed at the lower end of the vertical rod, and the upper end of the vertical rod of the limiting rod is fixedly connected with a rotating handle; the far ends of the lower planes of the two cross beam plates are hinged with transverse top plates respectively, the opposite surfaces of the two top plates are provided with two longitudinal sliding openings respectively, the sliding openings correspond to the positions of the limiting rods, the limiting rods on the cross beam plates penetrate through the corresponding sliding openings on the top plates, and the horizontal rods on the limiting rods are staggered with the sliding openings; and a plurality of positioning grooves are respectively formed in the opposite surfaces of the two top plates, the positioning grooves on the two top plates correspond in position, and the gap between the two top plates and the slide line port are on the same vertical plane.
Preferably: the circular ring and the take-up roller are on the same horizontal plane.
Preferably: the slide hole, the wire collecting roller, the circular ring, the wire sliding port and the gap between the two top plates are in the same vertical plane.
Preferably: the number of the positioning grooves on each top plate is at least two.
As described above, the experimental device for the pendulum bob impact force sensor according to the present invention has the following beneficial effects: the distance between the pendulum bob and the circular ring can be changed through the wire-rewinding mechanism, so that the swinging radius of the pendulum bob is changed, and the force path of the pendulum bob for knocking the force sensor is changed; the pendulum positioning mechanism can eliminate the difference caused by artificially releasing the pendulum; through the force sensor positioning mechanism, the force sensor can accurately find the position of the pendulum bob on the vertical plate of the supporting plate.
Drawings
FIG. 1 is a front view of an experimental apparatus for a pendulum impact force sensor according to the present invention.
FIG. 2 is a left side view of an experimental apparatus for a pendulum impact force sensor of the present invention.
Fig. 3 is a top view of a fixation plate of the present invention.
Fig. 4 is a right side view of the fixation plate of the present invention.
FIG. 5 is a left side view of the take-up mechanism of the present invention.
Fig. 6 is a right side view of the pendulum positioning mechanism of the present invention.
Fig. 7 is a top view of the pendulum positioning mechanism of the present invention.
Fig. 8 is a pendulum release schematic of the pendulum positioning mechanism of the present invention.
Wherein: the wire winding device comprises a bottom plate 1, a supporting plate 2, a ring 3, a wire winding mechanism 4, a first support plate 41, a wire winding roller 42, a rotating handle 43, a pull rope 5, a pendulum bob 6, a force sensor positioning mechanism 7, a sliding hole 71, a fixing plate 72, a sliding groove 73, a placing groove 74, a notch 75, an impact port 76, a threaded hole 77, a pendulum bob positioning mechanism 8, a second support plate 81, a sliding wire port 82, a cross beam plate 83, a top plate 84, a sliding port 841, a positioning groove 842, a limiting rod 85, a rotating handle 851, a force sensor 9 and an electric cabinet 10.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Example 1
As shown in fig. 1-8, the invention discloses a pendulum bob impact force sensor experimental device, which comprises a bottom plate 1, a support plate 2, a ring 3, a take-up mechanism 4, a pull rope 5, a pendulum bob 6, a force sensor positioning mechanism 7, a pendulum bob positioning mechanism 8 and an electric cabinet 10, wherein the support plate 2 is fixedly connected to the bottom plate 1, the support plate 2 consists of a transverse plate and a vertical plate, and the take-up mechanism 4, the ring 3 and the pendulum bob positioning mechanism 8 are sequentially and fixedly connected to the transverse plate of the support plate 2 from left to right; one end of the pull rope 5 movably penetrates through the circular ring 3 to be fixedly connected with the pendulum bob 6, the other end of the pull rope is connected with the take-up mechanism 4, the vertical plate of the supporting plate 2 is provided with a force sensor positioning mechanism 7, and a PLC (programmable logic controller) in the electric cabinet 10 is electrically connected with the force sensor 9.
Preferably: the take-up device 4 comprises a U-shaped support plate 41 fixedly connected to a transverse plate of the support plate 2, the inner walls of two sides of the support plate 41 are rotatably connected with a take-up roller 42, a rotating handle 43 is fixedly connected to a rotating shaft at one end of the take-up roller 42, and the pull rope 5 is fixedly connected with the take-up roller 42.
Preferably: the force sensor positioning mechanism 7 comprises a fixed plate 72 and a vertical sliding hole 71 formed in a vertical plate of the support plate 2, sliding grooves 73 are respectively formed in the front end and the rear end of the fixed plate 72, the fixed plate 72 is slidably connected with the sliding hole 71 through the sliding grooves 73, a placing groove 74 is formed in the upper end of the fixed plate 72, and a force sensor 9 is placed in the placing groove 74; a notch 75 for placing a wire end of the force sensor 9 is formed in the left side wall of the placing groove 74, and an impact port 76 is formed in the right side wall; the supporting plates 2 at the front end and the rear end of the sliding hole 71 are respectively and uniformly provided with a plurality of vertically arranged threaded holes 77, and the fixing plate 72 is fixed on the threaded holes 77 through bolts.
Preferably: the pendulum positioning mechanism 8 comprises a second support plate 81 fixedly connected to a transverse plate of the support plate 2, and a slide wire port 82 is formed in the middle of the lower plane of the second support plate 81; the right plane of the second support plate 81 is fixedly connected with two equal-height cross beam plates 83, and the two cross beam plates 83 are respectively arranged at the front end and the rear end of the slide wire port 82; the left end and the right end of the crossbeam plate 83 are respectively and rotatably connected with an L-shaped limiting rod 85 penetrating through the crossbeam plate 83, the limiting rod 85 consists of a vertical rod and a horizontal rod fixed at the lower end of the vertical rod, and the upper end of the vertical rod of the limiting rod 85 is fixedly connected with a rotating handle 851; the ends, far away from each other, of the lower planes of the two cross beam plates 83 are respectively hinged with a transverse top plate 84, two longitudinal sliding openings 841 are respectively formed in the opposite surfaces of the two top plates 84, the sliding openings 841 correspond to the positions of the limiting rods 85, the limiting rods 85 on the cross beam plates 83 penetrate through the corresponding sliding openings 841 on the top plates 84, and the horizontal rods on the limiting rods 85 are staggered with the sliding openings 841; a plurality of positioning grooves 842 are respectively formed on the opposite surfaces of the two top plates 84, the positioning grooves 842 on the two top plates 84 correspond in position, and the gap between the two top plates 84 and the slide wire port 82 are on the same vertical plane.
Preferably: the ring 3 and the take-up roller 42 are on the same horizontal plane.
Preferably: the sliding hole 71, the take-up roller 42, the ring 3, the sliding wire port 82 and the gaps between the two top plates 84 are in the same vertical plane.
Preferably: the number of the positioning grooves 842 on each top plate 84 is at least two.
The invention is implemented as follows:
according to the schemes of fig. 1, fig. 6 and fig. 7, the pendulum bob 6 is placed in the positioning grooves 842 corresponding to the two top plates 84, and the distance from the pendulum bob 6 to the ring 3 is changed through different positioning grooves 842 due to the fact that the number of the positioning grooves 842 on the top plates 84 is at least two, namely the swing radius of the pendulum bob 6 is changed;
according to fig. 5, the rotating handle 43 is rotated to rotate the take-up roller 42, so that the pull rope 5 between the pendulum bob 6 and the take-up roller 42 is tightened;
according to the scheme (figure 2), (figure 3) and (figure 4), the bolts between the fixing plate 72 and the threaded holes 77 are removed, then the fixing plate 72 is slid, so that the fixing plate 72 moves to the knocking part of the pendulum bob 6, and then the fixing plate 72 is fixed through the bolts and the threaded holes 77; then the force sensor 6 is placed in the placement groove 74; since the notch 75 for placing the wire end of the force sensor 9 is formed on the left side wall of the placing groove 74, the wire end of the force sensor 9 cannot be damaged by the impact of the pendulum bob 6;
according to fig. 8, the two lower planes of the two cross beam plates 83 are away from each other, the ends of the two cross beam plates 83 are hinged with the transverse top plates 84, the limiting rods 85 on the cross beam plates 83 penetrate through the sliding openings 841 on the corresponding top plates 84, and the horizontal rods on the limiting rods 85 are staggered with the sliding openings 841, so that the horizontal rods on the limiting rods 85 are overlapped with the sliding openings 841 by rotating the rotating handle 851, the horizontal rods on the limiting rods 85 cannot block the top plates 84 at the moment, the top plates 84 rotate at the moment, the pendulum bob 6 falls down and swings, and the pendulum bob 6 impacts the stressed surface of the force sensor 9 through the impact openings 76.
The invention has the beneficial effects that:
the distance between the pendulum bob 6 and the circular ring 3 can be changed through the wire-rewinding mechanism 4, so that the swinging radius of the pendulum bob 6 is changed, and the force path of the pendulum bob 6 for knocking the force sensor 9 is changed; errors caused by manual release of the pendulum bob 6 can be eliminated through the pendulum bob positioning mechanism 7; the force sensor 9 can accurately find the position of the pendulum bob 6 on the vertical plate of the supporting plate 2 through the force sensor positioning mechanism 7.
Wherein: the ring 3 and the take-up roller 42 are on the same horizontal plane. The method has the advantage of improving the experimental accuracy.
Wherein: the slide hole 71, the take-up roller 42, the ring 3, the slide wire port 82 and the gap between the two top plates 84 are in the same vertical plane. Has the advantage of reducing pendulum swing deflection.
Wherein: the number of detents 842 on each top plate 84 is at least two. Has the advantage of increasing the swing radius range of the pendulum bob.
Finally, it should be noted that: the above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention; thus, while the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted; all such modifications and variations are intended to be included herein within the scope of this disclosure and the present invention and protected by the following claims.
Claims (6)
1. The utility model provides a pendulum impact force sensor experimental apparatus, includes bottom plate, backup pad, ring, admission machine, stay cord, pendulum, force sensor positioning mechanism, pendulum positioning mechanism, electric cabinet, its characterized in that: the base plate is fixedly connected with a supporting plate, the supporting plate consists of a transverse plate and a vertical plate, and the transverse plate of the supporting plate is fixedly connected with a wire take-up mechanism, a circular ring and a pendulum positioning mechanism from left to right in sequence; one end of the pull rope movably penetrates through the ring to be fixedly connected with the pendulum bob, the other end of the pull rope is connected with the take-up mechanism, a force sensor positioning mechanism is arranged on a vertical plate of the supporting plate, and a PLC (programmable logic controller) in the electric cabinet is electrically connected with the force sensor;
the pendulum positioning mechanism comprises a second support plate fixedly connected to a transverse plate of the support plate, and a slide wire opening is formed in the middle of the lower plane of the second support plate; the right plane of the second support plate is fixedly connected with two equal-height cross beam plates, and the two cross beam plates are respectively arranged at the front end and the rear end of the slide wire port; the left end and the right end of the cross beam plate are respectively and rotatably connected with an L-shaped limiting rod penetrating through the cross beam plate, the limiting rod consists of a vertical rod and a horizontal rod fixed at the lower end of the vertical rod, and the upper end of the vertical rod of the limiting rod is fixedly connected with a rotating handle; the far ends of the lower planes of the two cross beam plates are hinged with transverse top plates respectively, the opposite surfaces of the two top plates are provided with two longitudinal sliding openings respectively, the sliding openings correspond to the positions of the limiting rods, the limiting rods on the cross beam plates penetrate through the corresponding sliding openings on the top plates, and the horizontal rods on the limiting rods are staggered with the sliding openings; and a plurality of positioning grooves are respectively formed in the opposite surfaces of the two top plates, the positioning grooves on the two top plates correspond in position, and the gap between the two top plates and the slide line port are on the same vertical plane.
2. A pendulum impact force sensor experimental apparatus according to claim 1, wherein: the take-up mechanism comprises a U-shaped support plate I fixedly connected to a transverse plate of the support plate, the inner walls of two sides of the support plate I are rotatably connected with a take-up roller, a rotating handle is fixedly connected to a rotating shaft at one end of the take-up roller, and the pull rope is fixedly connected with the take-up roller.
3. A pendulum impact force sensor experimental apparatus according to claim 2, wherein: the force sensor positioning mechanism comprises a fixed plate and a vertical sliding hole formed in a vertical plate of the supporting plate, sliding grooves are formed in the front end and the rear end of the fixed plate respectively, the fixed plate is connected with the sliding hole in a sliding mode through the sliding grooves, a placing groove is formed in the upper end of the fixed plate, and a force sensor is placed in the placing groove; the left side wall of the placing groove is provided with a notch for placing a wire end of the force sensor, and the right side wall of the placing groove is provided with an impact port; the supporting plates at the front end and the rear end of the sliding hole are respectively and uniformly provided with a plurality of vertically arranged threaded holes, and the fixing plate is fixed on the threaded holes through bolts.
4. A pendulum impact force sensor experimental apparatus according to claim 3, wherein: the number of the positioning grooves on each top plate is at least two.
5. A pendulum impact force sensor experimental apparatus according to claim 3, wherein: the slide hole, the wire collecting roller, the circular ring, the wire sliding port and the gap between the two top plates are in the same vertical plane.
6. A pendulum impact force sensor experimental apparatus according to claim 5, wherein: the circular ring and the take-up roller are on the same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811148681.0A CN109406305B (en) | 2018-09-29 | 2018-09-29 | Pendulum bob impact force sensor experimental device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811148681.0A CN109406305B (en) | 2018-09-29 | 2018-09-29 | Pendulum bob impact force sensor experimental device |
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| CN109406305A CN109406305A (en) | 2019-03-01 |
| CN109406305B true CN109406305B (en) | 2021-12-17 |
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| CN112967586B (en) * | 2021-02-22 | 2022-11-22 | 中国人民解放军陆军装甲兵学院 | Pendulum bob impact system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3620638A1 (en) * | 1986-06-20 | 1987-12-23 | Timofej Ivanovic Selomencev | Method for determining the technical state of a pneumatic tyre |
| KR100380885B1 (en) * | 2000-05-26 | 2003-04-18 | 한국전력공사 | Pendulum Type Impact Tester with Manipulator and Analog Type Angular Transducer |
| CN101825539A (en) * | 2010-05-13 | 2010-09-08 | 常州华厦建设工程质量检测有限公司 | Impact resistance test device for overhead rail glass |
| CN202033168U (en) * | 2011-03-15 | 2011-11-09 | 浙江吉利汽车研究院有限公司 | Impact test device of knees of dummy |
| CN202974613U (en) * | 2012-10-25 | 2013-06-05 | 东莞市精准通检测服务有限公司 | Suspension shock testing rack |
| CN103604708A (en) * | 2013-11-22 | 2014-02-26 | 深圳天祥质量技术服务有限公司 | Impact testing machine for ceramic pendulum bob |
| CN104776965A (en) * | 2014-01-10 | 2015-07-15 | 南京工业大学 | Adjustable impact test device and method |
| KR101745939B1 (en) * | 2015-06-16 | 2017-06-12 | 경희대학교 산학협력단 | Collision test apparatus for human injury evaluation |
| CN206038455U (en) * | 2016-08-26 | 2017-03-22 | 广州永日电梯有限公司 | Elevator layer door mechanical strength's testing arrangement |
| CN206618553U (en) * | 2017-03-29 | 2017-11-07 | 南京南大工程检测有限公司 | A kind of house anti-soft impulse experimental rig of exhaust duct |
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