CN105181365A - Test apparatus of influence of jacquard machine opening arm shaft rigidity on shedding knife and method thereof - Google Patents
Test apparatus of influence of jacquard machine opening arm shaft rigidity on shedding knife and method thereof Download PDFInfo
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- CN105181365A CN105181365A CN201510486120.1A CN201510486120A CN105181365A CN 105181365 A CN105181365 A CN 105181365A CN 201510486120 A CN201510486120 A CN 201510486120A CN 105181365 A CN105181365 A CN 105181365A
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- opening arm
- shedding tool
- arm axle
- acceleration transducer
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Abstract
The invention discloses a test apparatus of an influence of jacquard machine opening arm shaft rigidity on a shedding knife and a method thereof. The apparatus comprises a test-apparatus mechanical component, an acceleration sensor, a bending torsion sensor, a sequential measurement apparatus, a signal analyzer and the like. By using the apparatus and the method of the invention, influences of opening arm shafts with different types and different diameters on motion, vibration and deformation of the shedding knife can be quantitatively researched. The opening arm shafts used for the test are three types of solid opening arm shafts with different diameters and two different types of hollow opening arm shafts. When shaft diameters of the opening arm shafts change or the opening arm shafts adopt the hollow shafts, the acceleration sensor is used to measure motion and vibration states of the shedding knife at three directions. A bridge-type strain gauge principle is used to measure bending torsion of the shedding knife and operation data of the shedding knife is obtained through measurement. The above data can provide bases for designing an opening arm shaft structure and a size of a high speed jacquard machine. The most appropriate opening arm shaft is designed, and redundant distortion and bending in shedding motion are reduced as much as possible.
Description
Technical field
The invention belongs to jet jacquard loom field, be applied in the design of jacquard, be specifically related to a kind of jacquard opening arm axle rigidity to shedding tool motion, vibration and the test unit of influence of crust deformation and method.
Background technology
In full-jacquard mechanism, shedding tool is reciprocating, shedding tool lift or fall journey terminate after shedding tool high vibration.The vibration shape of shedding tool is complicated and amplitude is large, especially in the occasion that opening arm axle is thinner, is producing violent oscillatory motion perpendicular in shedding tool direction of motion; And the shedding tool in motion produces bending, and middle bent degree can reach several mm, and adjacent shedding tool all can produce bending, and bending direction is inconsistent, causes the collision between adjacent shedding tool, and damage the electric component being used for shedding.
Full-jacquard mechanism is linkage assembly, motion passes to shedding tool from upper and lower opening arm axle through many rod members, shedding tool operative orientation pumps, motion or vibration is there is in the feature of shedding tool motion in two other direction perpendicular to operative orientation, measure the acceleration of shedding tool, need to measure the vibration data perpendicular to operative orientation, these vibrations are unnecessary and harmful.Shedding tool is platypelloid type, length about 1 meter, and thickness thinnest part only has 6mm, there is maximum vibration and distortion in the flat direction of shedding tool.Only have by different opening arm axles to the measured curve of shedding tool effect, pin number and velocity range that any opening arm axle adapts to most could be grasped in quantity.
It is the element task that must do that measurement and pilot system are run for the motion of understanding shedding tool and vibration, is necessary the result of use of the opening arm axle of research various types.If a kind of special test unit can be made, just can study different types opening arm axle quantitatively, study the impact that the factors such as the change of magnitude of load, rotating speed are moved on shedding tool quantitatively, directly obtain data and curve, improving the structure of full-jacquard mechanism and newly design provides foundation.
Summary of the invention
In order to meet the demand, the present invention aims to provide the test unit and method that a kind of jacquard opening arm axle rigidity affects shedding tool, for the impact on shedding tool motion, vibration and deformation of the opening arm axle of studying different types different-diameter quantitatively.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
The test unit that jacquard opening arm axle rigidity affects shedding tool, comprises test unit mechanical part, the first acceleration transducer, the second acceleration transducer, the 3rd acceleration transducer, bending sensor, time-ordered measurement device and signal analyzer;
Described test unit mechanical part comprises as upper and lower two opening arm axles of subjects, four blocks of shedding plates and shedding tool, and described opening arm axle is the one in the solid openings arm axle of three kinds of different-diameters or the hollow opening arm axle of two kinds of different types; The two ends, left and right of upper and lower two described opening arm axles are provided with a swing arm seat, the rear and front end of described swing arm seat is respectively arranged with swing arm, be provided with one in the arc groove of each described swing arm above hand in hand, may be locked in hand in hand on described on multiple positions of described arc groove; Four blocks of described shedding plates are one group with every two pieces, be divided into two groups, two blocks that often organize described shedding plates lay respectively at the below at two ends, described opening arm axle left and right, under shedding plate described in every block being provided with two hand in hand, eachly describedly upper to connect hand in hand down respectively by described corresponding with below it of connecting rod hand in hand, shedding plate described in every block is all by belonging to the described connecting rod drive of upper and lower two described opening arm axles; The bottom of shedding plate described in every block is provided with 8 pull bars, the two ends, left and right on described shedding tool top are respectively arranged with griffes bearing, all by described pull bar and describedly griffe the hinged of bearing and be equipped with 8 pieces of described shedding tools below two blocks that often organize described shedding plates.
Described first acceleration transducer is adsorbed on the lateral surface at shedding tool 8mm thickness place described in first page; Described second acceleration transducer is arranged on shedding tool described in first page by a test bent plate, described test bent plate is arranged on to griffe the junction of bearing described in shedding tool described in first page and side, described second acceleration transducer is adsorbed on the corner of described test bent plate; Described 3rd acceleration transducer is arranged on shedding tool described in first page by the straight plate of a test, the straight plate of described test is arranged on to griffe the junction of bearing described in shedding tool described in first page and opposite side, described 3rd acceleration transducer is adsorbed on the upper surface of the straight plate of described test; Described bending sensor is pasted onto in the middle part of the lateral surface at shedding tool 6mm thickness place described in first page;
Described first acceleration transducer, described second acceleration transducer and described 3rd acceleration transducer are respectively by the first load amplifier, second load amplifier is connected with the signal receiving end of described signal analyzer with the 3rd load amplifier, described bending sensor is connected with the signal receiving end of described signal analyzer by Signal Collection and amplify device, described time-ordered measurement device comprises a scrambler, described scrambler is arranged on the gear pair of loom main shaft, described scrambler connects a control panel, described control panel is connected with the signal input part of described signal analyzer and described Signal Collection and amplify device respectively, the signal output part of described signal analyzer connects display.
Further, the solid openings arm axle of three kinds of described different-diameters is respectively:
1) diameter is the solid openings arm axle of 80mm;
2) diameter is the solid openings arm axle of 100mm;
3) diameter is the solid openings arm axle of 120mm.
Further, the hollow opening arm axle of two kinds of described different types is respectively:
1) axle external diameter is 120mm, and axle internal diameter is the hollow opening arm axle of 90mm;
2) axle external diameter is 120mm, and axle internal diameter is the hollow opening arm axle of 104mm.
Further, described bending sensor is made up of eight foil gauges and the thick copper sheet of 0.5mm, the long 64mm of described copper sheet, wide 32mm, eight described foil gauges are all pasted onto on described copper sheet, the stickup direction of one group of four described foil gauge is parallel with the Width of described shedding tool, and the stickup direction of another group four described foil gauges becomes miter angle with the Width of described shedding tool.
The test method that jacquard opening arm axle rigidity affects shedding tool, comprises the following steps:
Step 1) analyzes the required parameter measured, selected measurement point;
1) the first measurement point, is positioned at the lateral surface at shedding tool 8mm thickness place described in first page, measures the acceleration in the flat direction of described shedding tool;
2) the second measurement point, is positioned to be arranged on and griffes described in shedding tool described in first page and side the corner of described test bent plate of bearing junction, to measure the acceleration of described shedding tool Width;
3) the 3rd measurement point, is positioned to be arranged on and griffes the upper surface of the straight plate of described test of bearing junction described in shedding tool described in first page and opposite side, measure the acceleration of described shedding tool operative orientation;
4) the 4th measurement point, in the middle part of the lateral surface being positioned at shedding tool 6mm thickness place described in first page, measures the distortion of described shedding tool;
Step 2) corresponding measurement mechanism is installed on each measurement point;
1) described first acceleration transducer is installed on the first measurement point;
2) described second acceleration transducer is installed on the second measurement point;
3) described 3rd acceleration transducer is installed on the 3rd measurement point;
4) on the 4th measurement point, described bending sensor is installed; Described bending sensor is made up of eight described foil gauges and the thick described copper sheet of 0.5mm, the long 64mm of described copper sheet, wide 32mm, eight described foil gauges are all pasted onto on described copper sheet, the stickup direction of one group of four described foil gauge is parallel with the Width of described shedding tool, and the stickup direction of another group four described foil gauges becomes miter angle with the Width of described shedding tool;
Step 3), by adopting the solid openings arm axle of following three kinds of different-diameters, tests the acceleration of the distortion of shedding tool and flat direction thereof, Width and operative orientation respectively:
1) diameter is the solid openings arm axle of 80mm;
2) diameter is the solid openings arm axle of 100mm;
3) diameter is the solid openings arm axle of 120mm;
Step 4), by adopting the hollow opening arm axle of following two kinds of different types, tests the acceleration of the distortion of shedding tool and flat direction thereof, Width and operative orientation respectively:
1) axle external diameter is 120mm, and axle internal diameter is the hollow opening arm axle of 90mm;
2) axle external diameter is 120mm, and axle internal diameter is the hollow opening arm axle of 104mm;
Signal transmissions is given described signal analyzer respectively by the first load amplifier, the second load amplifier and the 3rd load amplifier by the first acceleration transducer, described second acceleration transducer and described 3rd acceleration transducer described in step 5), Signal transmissions is given described signal analyzer by Signal Collection and amplify device by described bending sensor, described signal analyzer processes each signal collected, change into the digital signal of each physical quantity, i.e. the Y-coordinate of experiment curv;
Step 6) is while measurement starts, described scrambler produces sequential, the time that record is measured, described main shaft gyration, drive described scrambler to turn round by described gear pair, angle of revolution is angled through described coder transitions, and coding angle converts digital signal to through described signal analyzer, there is provided measurement sequential, i.e. the X-coordinate of experiment curv;
Above-mentioned two paths of signals is sent to described display screen by signal analyzer described in step 7) simultaneously, and described display screen demonstrates the accelerating curve with shedding tool three directions of described main axle angle of revolution change and stress curve.
The invention has the beneficial effects as follows:
Patent of the present invention is that a kind of jacquard opening arm axle rigidity is moved to shedding tool, the test unit of vibration and deformation effect and method, when diameter of axle variation or the opening arm axle employing tubular shaft of opening arm axle, utilize acceleration transducer at three orientation measurement shedding tool motions and vibrational state, bridge-type foil gauge principle is utilized to measure the bending of shedding tool, measure the service data obtaining shedding tool, these data can provide basis for the design of the opening arm axle construction of high speed jacquard loom and size, design most suitable opening arm axle, reduce distortion unnecessary in heald motion as far as possible and bend.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of instructions, coordinates accompanying drawing to describe in detail below with preferred embodiment of the present invention.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the first half structural representation of test unit mechanical part of the present invention;
Fig. 2 is the latter half structural representation of test unit mechanical part of the present invention;
Fig. 3 is the installation site schematic diagram of the present invention first acceleration transducer;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the installation site schematic diagram of the present invention second acceleration transducer;
Fig. 6 is the installation site schematic diagram of the present invention the 3rd acceleration transducer;
Fig. 7 is the installation site schematic diagram of bending sensor of the present invention;
Fig. 8 is the left view of Fig. 7;
Fig. 9 is the structural representation of bending sensor of the present invention;
Figure 10 is the work block diagram that the present invention gathers bending signal;
Figure 11 is the electrical structure schematic diagram of each measurement mechanism of the present invention;
Figure 12 is the structural representation of solid openings arm axle of the present invention;
Figure 13 is the structural representation of the hollow opening arm axle of the present invention.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
The test unit that jacquard opening arm axle rigidity affects shedding tool, comprises test unit mechanical part, the first acceleration transducer 1, second acceleration transducer 2, the 3rd acceleration transducer 3, bending sensor 4, time-ordered measurement device and signal analyzer 5.
Shown in Fig. 1, Fig. 2, described test unit mechanical part comprises upper and lower two opening arm axles 6, four blocks of shedding plates 7 as subjects and shedding tool 8, and described opening arm axle 6 is the one in the solid openings arm axle of three kinds of different-diameters or the hollow opening arm axle of two kinds of different types.
Shown in Figure 12, the solid openings arm axle of three kinds of described different-diameters is respectively:
1, diameter is the solid openings arm axle of 80mm;
2, diameter is the solid openings arm axle of 100mm;
3, diameter is the solid openings arm axle of 120mm.
Shown in Figure 13, the hollow opening arm axle of two kinds of described different types is respectively:
1, axle external diameter is 120mm, and axle internal diameter is the hollow opening arm axle of 90mm;
2, axle external diameter is 120mm, and axle internal diameter is the hollow opening arm axle of 104mm.
The two ends, left and right of upper and lower two described opening arm axles 6 are all provided with a swing arm seat 9 through key, the rear and front end of described swing arm seat 9 is respectively arranged with swing arm 10, each described swing arm 10 each by 10 locked with bolts on described swing arm seat 9, opening arm axle 6 described in every root drives four described swing arms 10, lead along by hand 11 on being provided with one in the arc groove of each described swing arm 10,11 may be locked on multiple positions of described arc groove hand in hand on described; Four blocks of described shedding plates 7 are one group with every two pieces, be divided into two groups, two blocks that often organize described shedding plates 7 lay respectively at the below at described opening arm axle about 6 two ends, 12 are led along by hand under shedding plate 7 described in every block being provided with two, eachly describedly upper 11 lead along by hand down respectively by described corresponding with below it of connecting rod 13 and 12 to connect hand in hand, shedding plate 7 described in every block is all driven by the described connecting rod 13 belonging to upper and lower two described opening arm axles 6; The bottom of shedding plate 7 described in every block is provided with 8 pull bars 14, the two ends, left and right on described shedding tool 8 top are respectively arranged with griffes bearing 15, is all griffed the hinged of bearing 15 by described pull bar 14 be equipped with 8 pieces of described shedding tools 8 with described below two blocks that often organize described shedding plates 7.
The travelling speed of jacquard loom is within the scope of 7-12HZ, and former rank natural frequency of the transverse bending vibration on the flat direction of shedding tool is in loom operational speed range, and shedding tool work condition environment is very poor, and Oscillation Amplitude is large.Especially in the occasion that opening arm axle is thinner, or shedding tool work online frequency and former rank natural frequency close to time, violent oscillatory motion is produced in the direction of moving perpendicular to shedding tool, shedding tool in motion produces bending, shedding tool middle bent can reach several millimeters, and adjacent shedding tool all can produce bending, and bending direction is inconsistent, cause the collision between adjacent shedding tool, and damage adjacent electric component.
Measuring position is mainly arranged on the moving region of shedding tool, and measurement point divides four kinds.The motion of shedding tool is based on vertical operation direction, there is vibration in two other direction perpendicular to direction of motion in the feature of shedding tool motion, therefore needs to measure shedding tool direction of motion, acceleration at loom depth direction and Width with acceleration transducer.
Shown in Fig. 3, Fig. 4, described first acceleration transducer 1 is adsorbed on the lateral surface at the 8mm thickness place of shedding tool 8 described in first page, measures the acceleration in the flat direction of described shedding tool.Shedding tool is large in operative orientation rigidity, and on flat direction, rigidity is little, and the natural frequency of shedding tool on flat direction, close to loom operating frequency, therefore exists very large vibration and distortion in the flat direction of shedding tool.
Shown in Figure 5, described second acceleration transducer 2 is arranged on shedding tool 8 described in first page by a test bent plate 16, described test bent plate 16 is arranged on shedding tool described in first page 8 and griffes the junction of bearing 15 described in side, described second acceleration transducer 2 is adsorbed on the corner of described test bent plate 16, measure the acceleration (play) of described shedding tool Width, there is the play of several millimeters at Width in shedding tool, open height is larger, and horizontal looseness amount is larger.The thick 2mm of described test bent plate, length and width are 80mm × 14mm, and centre has three diameters to be the hole of 8mm, and three bolts link together griffing bearing, test bent plate and shedding tool.
Shown in Figure 6, described 3rd acceleration transducer 3 is arranged on shedding tool 8 described in first page by the straight plate 17 of a test, the straight plate 17 of described test is arranged on shedding tool described in first page 8 and griffes the junction of bearing 15 described in opposite side, described 3rd acceleration transducer 3 is adsorbed on the upper surface of the straight plate 17 of described test, measures the acceleration of described shedding tool direction of motion.The straight thickness of slab 2mm of described test, centre has three diameters to be the hole of 8mm, three bolts griffe bearing, test straight plate and shedding tool links together.
Shown in Fig. 7, Fig. 8, described bending sensor 4 is pasted onto in the middle part of the lateral surface at 6mm thickness place of shedding tool 8 described in first page, measures the distortion of described shedding tool.
Shown in Figure 9, described bending sensor 4 is made up of eight foil gauges 41 and the thick copper sheet 42 of 0.5mm, the long 64mm of described copper sheet 42, wide 32mm, eight described foil gauges 41 are all pasted onto on described copper sheet 42, the stickup direction of one group four described foil gauges 41 is parallel with the Width of described shedding tool 8, for measuring bending on described shedding tool 8 Width; The stickup direction of another group four described foil gauges 41 becomes miter angle with the Width of described shedding tool 8, for measuring the distortion in described shedding tool 8 width, short transverse.
Shedding tool in motion produces bending in flat direction, middle bent can reach several millimeters, and adjacent shedding tool all can produce bending, and bending direction is inconsistent, causes the collision between adjacent shedding tool, and damages the electric components controlling jacquard weave.The amount of bow of thinnest part in the middle part of bending sensor measurement shedding tool, shedding tool not only bends at the volley, and distortion.
See Figure 10, shown in Figure 11, described first acceleration transducer 1, described second acceleration transducer 2 and described 3rd acceleration transducer 3 are respectively by the first load amplifier 18, second load amplifier 19 is connected with the signal receiving end of the 3rd load amplifier 20 with described signal analyzer 5, described bending sensor 4 is connected with the signal receiving end of described signal analyzer 5 by Signal Collection and amplify device 21, described time-ordered measurement device comprises a scrambler 24, described scrambler 24 is arranged on the gear pair 23 of loom main shaft 22, described scrambler 24 connects a control panel 25, described control panel 25 is connected with the signal input part of described signal analyzer 5 and described Signal Collection and amplify device 21 respectively, the signal output part of described signal analyzer 5 connects display 26.
The test method that jacquard opening arm axle rigidity affects shedding tool, comprises the following steps:
Step 1) analyzes the required parameter measured, selected measurement point;
1, the first measurement point, is positioned at the lateral surface at shedding tool 88mm thickness place described in first page, measures the acceleration in the described flat direction of shedding tool 8;
2, the second measurement point, is positioned at and is arranged on shedding tool described in first page 8 and griffes the corner of described test bent plate 16 of bearing 15 junction described in side, measure the acceleration of described shedding tool 8 Width;
3, the 3rd measurement point, is positioned at and is arranged on shedding tool described in first page 8 and griffes the upper surface of the straight plate 17 of described test of bearing 15 junction described in opposite side, measure the acceleration of described shedding tool 8 operative orientation;
4, the 4th measurement point, in the middle part of the lateral surface being positioned at shedding tool 86mm thickness place described in first page, measures the distortion of described shedding tool 8;
Step 2) corresponding measurement mechanism is installed on each measurement point;
1, described first acceleration transducer 1 is installed on the first measurement point;
2, described second acceleration transducer 2 is installed on the second measurement point;
3, described 3rd acceleration transducer 3 is installed on the 3rd measurement point;
4, on the 4th measurement point, described bending sensor 4 is installed; Described bending sensor 4 is made up of eight described foil gauges 41 and the thick described copper sheet 42 of 0.5mm, the long 64mm of described copper sheet 42, wide 32mm, eight described foil gauges 41 are all pasted onto on described copper sheet 42, the stickup direction of one group four described foil gauges 41 is parallel with the Width of described shedding tool 8, and the stickup direction of another group four described foil gauges 41 becomes miter angle with the Width of described shedding tool 8;
Step 3), by adopting the solid openings arm axle of following three kinds of different-diameters, tests the acceleration of the distortion of shedding tool and flat direction thereof, Width and operative orientation respectively:
1, diameter is the solid openings arm axle of 80mm;
2, diameter is the solid openings arm axle of 100mm;
3, diameter is the solid openings arm axle of 120mm;
Step 4), by adopting the hollow opening arm axle of following two kinds of different types, tests the acceleration of the distortion of shedding tool and flat direction thereof, Width and operative orientation respectively:
1, axle external diameter is 120mm, and axle internal diameter is the hollow opening arm axle of 90mm;
2, axle external diameter is 120mm, and axle internal diameter is the hollow opening arm axle of 104mm;
Signal transmissions is given described signal analyzer 5 respectively by the first load amplifier 18, second load amplifier 19 and the 3rd load amplifier 20 by the first acceleration transducer 1, described second acceleration transducer 2 and described 3rd acceleration transducer 3 described in step 5), Signal transmissions is given described signal analyzer 5 by Signal Collection and amplify device 21 by described bending sensor 4, described signal analyzer 5 processes each signal collected, change into the digital signal of each physical quantity, i.e. the Y-coordinate of experiment curv;
Step 6) is while measurement starts, described scrambler 24 produces sequential, the time that record is measured, described main shaft 22 turns round, drive described scrambler 24 to turn round by described gear pair 23, angle of revolution converts angle to through described scrambler 24, and coding angle converts digital signal to through described signal analyzer 5, there is provided measurement sequential, i.e. the X-coordinate of experiment curv;
Above-mentioned two paths of signals is sent to described display screen 26 by signal analyzer 5 described in step 7) simultaneously, and described display screen 26 demonstrates the accelerating curve with shedding tool three directions of described main shaft 22 angle of revolution change and stress curve.
Above-described embodiment, just in order to technical conceive of the present invention and feature are described, its objective is and is one of ordinary skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.The change of every equivalence done by the essence of content of the present invention or modification, all should be encompassed in protection scope of the present invention.
Claims (5)
1. the test unit that affects shedding tool of jacquard opening arm axle rigidity, is characterized in that: comprise test unit mechanical part, the first acceleration transducer (1), the second acceleration transducer (2), the 3rd acceleration transducer (3), bending sensor (4), time-ordered measurement device and signal analyzer (5);
Described test unit mechanical part comprises as upper and lower two opening arm axles (6) of subjects, four pieces of shedding plates (7) and shedding tool (8), and described opening arm axle (6) is the one in the solid openings arm axle of three kinds of different-diameters or the hollow opening arm axle of two kinds of different types; The two ends, left and right of upper and lower two described opening arm axles (6) are provided with a swing arm seat (9), the rear and front end of described swing arm seat (9) is respectively arranged with swing arm (10), be provided with one in the arc groove of each described swing arm (10) above hand in hand (11), described upper (11) hand in hand may be locked on multiple positions of described arc groove; Four pieces of described shedding plates (7) are one group with every two pieces, be divided into two groups, two pieces that often organize described shedding plates (7) lay respectively at the below at described opening arm axle (6) two ends, left and right, under shedding plate (7) described in every block is provided with two hand in hand (12), each described upper (11) hand in hand connect respectively by described lower lead along by hand (12) that connecting rod (13) is corresponding with below it, and shedding plate (7) described in every block is all by belonging to described connecting rod (13) drive of upper and lower two described opening arm axles (6); The bottom of shedding plate (7) described in every block is provided with 8 pull bars (14), the two ends, left and right on described shedding tool (8) top are respectively arranged with griffes bearing (15), and two pieces that often organize described shedding plates (7) belows are all by described pull bar (14) and describedly griffe the hinged of bearing (15) and be equipped with 8 pieces of described shedding tools (8);
Described first acceleration transducer (1) is adsorbed on the lateral surface at shedding tool described in first page (8) 8mm thickness place; Described second acceleration transducer (2) is arranged on shedding tool described in first page (8) by test bent plate (16), described test bent plate (16) is arranged on to griffe the junction of bearing (15) described in shedding tool described in first page (8) and side, described second acceleration transducer (2) is adsorbed on the corner of described test bent plate (16); Described 3rd acceleration transducer (3) is arranged on shedding tool described in first page (8) by the straight plate of a test (17), the straight plate of described test (17) is arranged on to griffe the junction of bearing (15) described in shedding tool described in first page (8) and opposite side, described 3rd acceleration transducer (3) is adsorbed on the upper surface of the straight plate of described test (17); Described bending sensor (4) is pasted onto in the middle part of the lateral surface at shedding tool described in first page (8) 6mm thickness place;
Described first acceleration transducer (1), described second acceleration transducer (2) and described 3rd acceleration transducer (3) are respectively by the first load amplifier (18), second load amplifier (19) is connected with the signal receiving end of described signal analyzer (5) with the 3rd load amplifier (20), described bending sensor (4) is connected by the signal receiving end of Signal Collection and amplify device (21) with described signal analyzer (5), described time-ordered measurement device comprises a scrambler (24), described scrambler (24) is arranged on the gear pair (23) of loom main shaft (22), described scrambler (24) connects a control panel (25), described control panel (25) is connected with the signal input part of described signal analyzer (5) and described Signal Collection and amplify device (21) respectively, the signal output part of described signal analyzer (5) connects display (26).
2. jacquard opening arm axle rigidity according to claim 1 test unit that shedding tool is affected, it is characterized in that, the solid openings arm axle of three kinds of described different-diameters is respectively:
1) diameter is the solid openings arm axle of 80mm;
2) diameter is the solid openings arm axle of 100mm;
3) diameter is the solid openings arm axle of 120mm.
3. jacquard opening arm axle rigidity according to claim 1 test unit that shedding tool is affected, it is characterized in that, the hollow opening arm axle of two kinds of described different types is respectively:
1) axle external diameter is 120mm, and axle internal diameter is the hollow opening arm axle of 90mm;
2) axle external diameter is 120mm, and axle internal diameter is the hollow opening arm axle of 104mm.
4. jacquard opening arm axle rigidity according to claim 1 test unit that shedding tool is affected, it is characterized in that: described bending sensor (4) is made up of eight foil gauges (41) and the thick copper sheet (42) of 0.5mm, described copper sheet (42) long 64mm, wide 32mm, eight described foil gauges (41) are all pasted onto on described copper sheet (42), the stickup direction of one group four described foil gauges (41) is parallel with the Width of described shedding tool (8), the stickup direction of another group four described foil gauges (41) becomes miter angle with the Width of described shedding tool (8).
5. adopt jacquard opening arm axle rigidity as claimed in claim 1 on a method for the test unit that shedding tool affects, it is characterized in that, comprise the following steps:
Step 1) analyzes the required parameter measured, selected measurement point;
1) the first measurement point, is positioned at the lateral surface at shedding tool described in first page (8) 8mm thickness place, measures the acceleration in described shedding tool (8) flat direction;
2) the second measurement point, is positioned to be arranged on and griffes described in shedding tool described in first page (8) and side the corner of described test bent plate (16) of bearing (15) junction, to measure the acceleration of described shedding tool (8) Width;
3) the 3rd measurement point, is positioned to be arranged on and griffes the upper surface of the straight plate of described test (17) of bearing (15) junction described in shedding tool described in first page (8) and opposite side, measure the acceleration of described shedding tool (8) operative orientation;
4) the 4th measurement point, in the middle part of the lateral surface being positioned at shedding tool described in first page (8) 6mm thickness place, measures the distortion of described shedding tool (8);
Step 2) corresponding measurement mechanism is installed on each measurement point;
1) described first acceleration transducer (1) is installed on the first measurement point;
2) described second acceleration transducer (2) is installed on the second measurement point;
3) described 3rd acceleration transducer (3) is installed on the 3rd measurement point;
4) described bending sensor (4) is installed on the 4th measurement point; Described bending sensor (4) is made up of eight described foil gauges (41) and the thick described copper sheet (42) of 0.5mm, described copper sheet (42) long 64mm, wide 32mm, eight described foil gauges (41) are all pasted onto on described copper sheet (42), the stickup direction of one group four described foil gauges (41) is parallel with the Width of described shedding tool (8), and the stickup direction of another group four described foil gauges (41) becomes miter angle with the Width of described shedding tool (8);
Step 3), by adopting the solid openings arm axle of following three kinds of different-diameters, tests the acceleration of the distortion of shedding tool and flat direction thereof, Width and operative orientation respectively:
1) diameter is the solid openings arm axle of 80mm;
2) diameter is the solid openings arm axle of 100mm;
3) diameter is the solid openings arm axle of 120mm;
Step 4), by adopting the hollow opening arm axle of following two kinds of different types, tests the acceleration of the distortion of shedding tool and flat direction thereof, Width and operative orientation respectively:
1) axle external diameter is 120mm, and axle internal diameter is the hollow opening arm axle of 90mm;
2) axle external diameter is 120mm, and axle internal diameter is the hollow opening arm axle of 104mm;
Signal transmissions is given described signal analyzer (5) respectively by the first load amplifier (18), the second load amplifier (19) and the 3rd load amplifier (20) by the first acceleration transducer (1), described second acceleration transducer (2) and described 3rd acceleration transducer (3) described in step 5), Signal transmissions is given described signal analyzer (5) by Signal Collection and amplify device (21) by described bending sensor (4), described signal analyzer (5) processes each signal collected, change into motor message, i.e. the Y-coordinate of experiment curv;
Step 6) is while measurement starts, described scrambler (24) produces sequential, the time that record is measured, described main shaft (22) turns round, drive described scrambler (24) to turn round by described gear pair (23), angle of revolution converts angle to through described scrambler (24), and coding angle converts digital signal to through described signal analyzer (5), there is provided measurement sequential, i.e. the X-coordinate of experiment curv;
Above-mentioned two paths of signals is sent to described display screen (26) by signal analyzer described in step 7) (5) simultaneously, and described display screen (26) demonstrates the accelerating curve with shedding tool three directions of described main shaft (22) angle of revolution change and stress curve.
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