CN203298859U - Jet loom frame vibration measuring apparatus - Google Patents
Jet loom frame vibration measuring apparatus Download PDFInfo
- Publication number
- CN203298859U CN203298859U CN2013202406472U CN201320240647U CN203298859U CN 203298859 U CN203298859 U CN 203298859U CN 2013202406472 U CN2013202406472 U CN 2013202406472U CN 201320240647 U CN201320240647 U CN 201320240647U CN 203298859 U CN203298859 U CN 203298859U
- Authority
- CN
- China
- Prior art keywords
- measuring point
- jet loom
- loom frame
- frame
- measurement mechanism
- 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.)
- Withdrawn - After Issue
Links
- 238000005259 measurement Methods 0.000 claims description 26
- 230000001133 acceleration Effects 0.000 claims description 10
- 235000014676 Phragmites communis Nutrition 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 4
- 238000005316 response function Methods 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 238000013461 design Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Landscapes
- Looms (AREA)
Abstract
The utility model discloses a jet loom frame vibration measuring apparatus which comprises four measuring points on a jet loom frame, a work state measuring device and a static state measuring device, wherein the work state measuring device comprises speed sensors on the first measuring point, the second measuring point and the third measuring point, the speed sensors are connected to a computer through a transmitter, the static state measuring device comprises a force sensor arranged on a force hammer, accelerometers on the second measuring point and the fourth measuring point, a charge amplifier, a load amplifier and a signal analyzer, a signal generator in the signal analyzer is electrically connected to the force hammer, the force sensor and speed sensors transmit signals to the signal analyzer respectively through the charge amplifier and the load amplifier, and the signal analyzer is connected to a display screen. The jet loom frame vibration measuring apparatus overcomes the defects of the prior art, and measures the vibration characteristics of a loom frame. The measured data provide basis for designing a loom frame, and the jet loom frame vibration measuring apparatus improves the vibration resistance capability of a jet loom frame structure.
Description
Technical field
The utility model belongs to the air-jet loom field, is specifically related to a kind of jet loom frame vibration measurement mechanism.
Background technology
At present, in the jet loom frame vibration was measured, most parameters of vibration aspect were not measured and studied.Only have the jet loom of working as to be arranged on upstairs, at ground floor, produced excessive noise and vibration, just go to find the reason of vibration.
The primary structure of jet loom frame consists of four support shelves and two blocks of wallboards, for 2.8 meters frames more than reed width, is furnished with intermediate support, strengthens the rigidity of four support shelves, and the support shelves are made with the section bar steel.Frame is the basic components of loom, and each motion all is arranged on frame, and the rotating speed adaptability of air-jet loom is at first relevant with the structure of frame, and the jet loom rotating speed improves, and rack construction also must upgrading.The rotating speed accommodation that the frame of different structure type is corresponding certain, the loom of 500 rev/mins of rotating speeds, 750 rev/mins of rotating speeds, 1000 rev/mins of rotating speeds has the frame of different structure.
And, the dynamic loading that the jet loom frame is mainly born is the dynamic force of beating-up mechanism and the reciprocating vibration of the back rest, if the frame vibration resistance is poor, the poor performance of absorption piece vibration, the parts operation becomes unreliable, frame can pass to warp thread to vibration, friction and the slip of aggravation warp thread in harness eye, and component movement breaks down and warp end break increases.In the shuttleless loom high-speed motion, frame vibration not only causes cracked ends, when frame vibration frequency and loom rotating speed are close to certain proportion, also can make the loom component wear, fall apart.Evaluate the standard of frame in the past and only had the Static State Indexes such as levelness, intensity, along with the appearance of high speed loom, the dynamic performance indexs such as the necessary involving vibrations performance of evaluation frame.
Frame to jet loom is carried out dynamic test, and frame is encouraged, and obtains the response signal of each position of frame, according to information, identifies the vibrational structure model of frame.Excitation input and acceleration responsive output exist determines relation, sets up thus the kinetic model of physical construction, after analysis, tries to achieve the dynamic perfromance of frame.The precision of Experimental Modeling is high, and reliable experiment result also can adopt in engineering at once.
In chassis design, need pay the utmost attention to the vibration characteristics of rack construction, improve the natural frequency and the vibration resistance that improves frame member of frame.Be measured as loom frame design considerations is provided, the elementary natural frequency of frame is 26HZ, along with air-jet loom develops to high speed, especially working as rotating speed is 1000rpm=16.67HZ, 16.67/26=0.64 operating frequency equals 0.64 with the ratio of natural frequency, during expression 1000rpm running, frame is held and be can't stand, frame produces too large vibration by excessive deformation.Therefore, measurement comprises:
1) frame is at a high speed and high carrying while moving, the frame vibration amount.
2) the support shelves have minimum vibration, minimum amount of deflection on frame length and Width.
The utility model content
For meeting the deficiencies in the prior art, the utility model has aimed to provide a kind of jet loom frame vibration measurement mechanism, and measurement data provides design considerations for loom frame, and new design will improve the vibration resistance of air-jet loom frame and frame member.
For solving the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of jet loom frame vibration measurement mechanism, comprise four measuring points and duty measurement mechanism and the stationary state measurement mechanism that are opened on the jet loom frame;
Described four test points are respectively the first measuring point, the second measuring point, the 3rd pilot and the 4th measuring point; Described the first measuring point is positioned at the right wallboard leading flank of described jet loom frame, 400 millimeters apart from bottom surface, 70 millimeters apart from side; Described the second measuring point is positioned at the centre of the rear upper support shelves end face of described jet loom frame, 1/5th length of the support shelves of the described right wallboard medial surface of distance; Described the 3rd measuring point is positioned at the middle of the rear lower support shelves end face of described jet loom frame; Described the 4th measuring point is positioned at the middle of the front upper support shelves end face of described jet loom frame;
Described duty measurement mechanism comprises speed pickup, transmitter and the computing machine that is arranged on described first, second, third measuring point, described speed pickup is input to described computing machine by the vibration signal that the air-jet loom running produces through described transmitter, from described computing machine, obtains vibratory output;
Described stationary state measurement mechanism comprises the power sensor that is arranged on power hammer, is arranged on acceleration transducer, charge amplifier, load amplifier, signal analyzer and display screen on described the second, the 4th measuring point; Signal generator in described signal analyzer is transferred to described power hammer by signal, after described power hammer knocks described the first measuring point, the application of force signal output that described power sensor will produce, the response signal output that described acceleration transducer will produce, described application of force signal and described response signal are transferred to described signal analyzer through described charge amplifier and described load amplifier respectively, and described signal analyzer will export described display screen to through the frequency response function that data are processed and analysis software solves frame.
Further, described first, second measuring point is all measured the frame of all reed widths, and described the 3rd measuring point is measured during more than or equal to 280cm at reed width.
Further, the magnet adsorption of described acceleration transducer bottom it is on described the second, the 4th measuring point.
Further, described transmitter comprises an amplifier, V/F converter, detuner and power module, described amp.in all is connected with described speed pickup with described power module, and the output terminal of described amplifier connects described V/F converter and is connected with described computing machine by described detuner.
Compared with prior art, the utlity model has following beneficial effect:
The utility model has met the deficiencies in the prior art, can measure the loom frame vibration characteristics, and the data of measurement provide design considerations for loom frame, and new design will improve the vibration resistance of air-jet loom frame frame member.
After the frame vibration resistance improved, the performance of absorption piece vibration also was improved, and the parts operation becomes more reliable, and frame can not pass to warp thread to vibration, has avoided friction and the slip of warp thread in harness eye, and component movement breaks down and warp end break also greatly reduces.In the shuttleless loom high-speed motion, cracked ends has not only been avoided in the raising of frame vibration resistance, has also avoided when frame vibration frequency and loom rotating speed are close to certain proportion, causing the loom component wear and falling apart.
The accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, and schematic description and description of the present utility model, for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 be the utility model first, second, the 4th measuring point is at the upper schematic diagram of putting of air-jet loom frame.
Fig. 2 is that the utility model the 3rd measuring point is at the upper schematic diagram of putting of air-jet loom frame.
Fig. 3 is the framework schematic diagram of duty measurement mechanism of the present utility model.
Fig. 4 is the framework schematic diagram of stationary state measurement mechanism of the present utility model.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
Shown in Fig. 1-4, a kind of jet loom frame vibration measurement mechanism, comprise four measuring points and duty measurement mechanism and the stationary state measurement mechanism that are opened on jet loom frame 19;
Described four test points are respectively the first measuring point A, the second measuring point B, the 3rd pilot C and the 4th measuring point D; Described the first measuring point A is positioned at right wallboard 1 leading flank of described jet loom frame 19,400 millimeters apart from bottom surface, 70 millimeters apart from side; Described the second measuring point B is positioned at the centre of rear upper support shelves 2 end faces of described jet loom frame 19,1/5th length of the support shelves of described right wallboard 1 medial surface of distance; Described the 3rd measuring point C is positioned at the middle of rear lower support shelves 3 end faces of described jet loom frame 19; Described the 4th measuring point D is positioned at the middle of front upper support shelves 4 end faces of described jet loom frame 19;
Described duty measurement mechanism comprises and is arranged on described first, second, third measuring point A, B, speed pickup 5 on C, transmitter 6 and computing machine 7, described speed pickup 5 is input to described computing machine 7 by the vibration signal that the air-jet loom running produces through described transmitter 6, from described computing machine 7, obtains vibratory output;
Described stationary state measurement mechanism comprises the power sensor 20 that is arranged on power hammer 12, is arranged on described the second, the 4th measuring point B, the acceleration transducer 13 on D, charge amplifier 14, load amplifier 15, signal analyzer 16 and display screen 17; Signal generator 18 in described signal analyzer 16 is transferred to described power hammer 12 by signal, after described power hammer 12 knocks described the first measuring point A, the application of force signal output that described power sensor 20 will produce, the response signal output that described acceleration transducer 13 will produce, described application of force signal and described response signal are transferred to described signal analyzer 16 through described charge amplifier 14 and described load amplifier 15 respectively, and described signal analyzer 16 will export described display screen 17 to through the frequency response function that data are processed and analysis software solves frame.
Further, described first, second measuring point A, B measures the frame of all reed widths, and described the 3rd measuring point C measures during more than or equal to 280cm at reed width.
Further, the magnet adsorption of described acceleration transducer 13 bottom it is at described the second, the 4th measuring point B, on D.
Further, described transmitter 6 comprises an amplifier 8, V/F converter 9, detuner 10 and power module 11, described amplifier 8 input ends all are connected with described speed pickup 5 with described power module 11, and the output terminal of described amplifier 8 connects described V/F converter 9 and is connected with described computing machine 7 by described detuner 10.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. jet loom frame vibration measurement mechanism is characterized in that: comprise four measuring points and duty measurement mechanism and the stationary state measurement mechanism that are opened on jet loom frame (19);
Described four test points are respectively the first measuring point (A), the second measuring point (B), the 3rd pilot (C) and the 4th measuring point (D); Described the first measuring point (A) is positioned at right wallboard (1) leading flank of described jet loom frame (19), 400 millimeters apart from bottom surface, 70 millimeters apart from side; Described the second measuring point (B) is positioned at the centre of rear upper support shelves (2) end face of described jet loom frame (19), 1/5th length of the support shelves of distance described right wallboard (1) medial surface; Described the 3rd measuring point (C) is positioned at the middle of rear lower support shelves (3) end face of described jet loom frame (19); Described the 4th measuring point (D) is positioned at the middle of front upper support shelves (4) end face of described jet loom frame (19);
Described duty measurement mechanism comprises and is arranged on described first, second, third measuring point (A, B, C) speed pickup on (5), transmitter (6) and computing machine (7), described speed pickup (5) is input to described computing machine (7) by the vibration signal that the air-jet loom running produces through described transmitter (6), from described computing machine (7), obtains vibratory output;
described stationary state measurement mechanism comprises the power sensor (20) that is arranged on power hammer (12), is arranged on acceleration transducer (13), charge amplifier (14), load amplifier (15), signal analyzer (16) and display screen (17) on described the second, the 4th measuring point (B, D), signal generator (18) in described signal analyzer (16) is transferred to described power hammer (12) by signal, after described power hammer (12) knocks described the first measuring point (A), the application of force signal output that described power sensor (20) will produce, the response signal that described acceleration transducer (13) will produce, described application of force signal and described response signal are transferred to described signal analyzer (16) through described charge amplifier (14) and described load amplifier (15) respectively, described signal analyzer (16) will export described display screen (17) to through the frequency response function that data are processed and analysis software solves frame.
2. jet loom frame vibration measurement mechanism according to claim 1, it is characterized in that: described first, second measuring point (A, B) is all measured the frame of all reed widths, and described the 3rd measuring point (C) is measured during more than or equal to 280cm at reed width.
3. jet loom frame vibration measurement mechanism according to claim 1 is characterized in that: the magnet adsorption of described acceleration transducer (13) by its bottom is on described the second, the 4th measuring point (B, D).
4. jet loom frame vibration measurement mechanism according to claim 1, it is characterized in that: described transmitter (6) comprises an amplifier (8), V/F converter (9), detuner (10) and power module (11), described amplifier (8) input end all is connected with described speed pickup (5) with described power module (11), and the output terminal of described amplifier (8) connects described V/F converter (9) and is connected with described computing machine (7) by described detuner (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202406472U CN203298859U (en) | 2013-05-07 | 2013-05-07 | Jet loom frame vibration measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202406472U CN203298859U (en) | 2013-05-07 | 2013-05-07 | Jet loom frame vibration measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203298859U true CN203298859U (en) | 2013-11-20 |
Family
ID=49574864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202406472U Withdrawn - After Issue CN203298859U (en) | 2013-05-07 | 2013-05-07 | Jet loom frame vibration measuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203298859U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234618A (en) * | 2013-05-07 | 2013-08-07 | 江苏万工科技集团有限公司 | Vibration measurement device and method for jet loom rack |
-
2013
- 2013-05-07 CN CN2013202406472U patent/CN203298859U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234618A (en) * | 2013-05-07 | 2013-08-07 | 江苏万工科技集团有限公司 | Vibration measurement device and method for jet loom rack |
| CN103234618B (en) * | 2013-05-07 | 2015-01-07 | 江苏万工科技集团有限公司 | Vibration measurement device and method for jet loom rack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103451891A (en) | Method for detecting eccentric load of roller washing machine by vibrating sensor | |
| CN103364160A (en) | Device and method for measuring mechanical impedance of harness frame | |
| CN102660853A (en) | Roll-barrel washing machine and method for improving vibration noise of roll-barrel washing machine | |
| CN203298859U (en) | Jet loom frame vibration measuring apparatus | |
| CN203502186U (en) | Apparatus for measuring mechanical impedance of heald frame | |
| CN104278984B (en) | Micrometric displacement indicator for beam pumper | |
| CN103878639A (en) | Static and dynamic tension detecting system for chains of chained tool magazines | |
| CN103234618B (en) | Vibration measurement device and method for jet loom rack | |
| CN205133064U (en) | A portal vibration damper for vertical lift fork truck | |
| CN102589667A (en) | Vehicle load detecting device and engineering vehicle | |
| CN202814329U (en) | Heald frame crossbeam motion state measuring device | |
| CN202814338U (en) | Automatic measurement apparatus for pantograph static parameters | |
| CN204255630U (en) | A kind of device of weaving machine rocking shaft bearing balanced structure system stress test | |
| CN204882111U (en) | Jacquard opening arm axle rigidity is to test device of shedding sword influence | |
| CN204128792U (en) | Shedding tool spectrum curve measurement mechanism | |
| CN204008051U (en) | Shedding tool vibration and flexural measurement device | |
| CN104180985A (en) | Heald raising knife frequency spectrum curve measurement method and device | |
| CN103234752A (en) | Device for measuring dynamic characteristics of rocking shaft system | |
| CN207163697U (en) | A kind of vibrating speed sensors | |
| CN206410684U (en) | One kind suspension clearance detecting system | |
| CN204982247U (en) | Rapier loom | |
| CN206556799U (en) | A kind of elevator hoist steel cable tension tester | |
| CN104390775A (en) | Device and method for testing stress on loom rocking shaft bearing equilibrium structure systems | |
| CN204556024U (en) | A kind of thread take-up tension lever on-line vibration and flexural measurement device | |
| CN203298956U (en) | Measuring device for dynamic characteristic of main nozzle installation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131120 Effective date of abandoning: 20150107 |
|
| RGAV | Abandon patent right to avoid regrant |