CN110344148B - Magnetoelectric spinning spindle power sensor - Google Patents
Magnetoelectric spinning spindle power sensor Download PDFInfo
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- CN110344148B CN110344148B CN201910696868.2A CN201910696868A CN110344148B CN 110344148 B CN110344148 B CN 110344148B CN 201910696868 A CN201910696868 A CN 201910696868A CN 110344148 B CN110344148 B CN 110344148B
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/14—Details
- D01H1/20—Driving or stopping arrangements
- D01H1/24—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles
- D01H1/241—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles driven by belt
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/32—Counting, measuring, recording or registering devices
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/02—Spinning or twisting arrangements for imparting permanent twist
- D01H7/04—Spindles
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/02—Spinning or twisting arrangements for imparting permanent twist
- D01H7/04—Spindles
- D01H7/08—Mounting arrangements
- D01H7/12—Bolsters; Bearings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention discloses a magnetoelectric spinning spindle power sensor which comprises a spindle blade and a spindle foot, wherein the spindle blade is movably connected with the spindle foot, a clutch component, a magnet, a magnetoelectric sensitive component and an integrated conversion module are arranged in the spindle foot, the clutch component is sleeved at the lower part of the spindle blade, and the clutch component is fixedly connected with the spindle blade; the magnetoelectric sensitive component is sleeved on one side of the clutch component far away from the spindle blade and is fixedly connected with the outer side of the clutch component; an induction coil of the magnetoelectric sensitive component is matched with the magnet; the magnet is fixedly connected with the inner side of the clutch component; and a signal extraction resistor of the magnetoelectric sensitive component is electrically connected with the induction coil to form a closed loop, and the signal extraction resistor is electrically connected with the integrated conversion module. The appearance of the invention is consistent with the appearance of the traditional spinning spindle, and has the advantages of stable performance, high sensitivity, repeated use, batch production, low cost, long service life and no change of the existing working mode of the traditional spindle.
Description
Technical Field
The invention relates to the field of textile machinery, in particular to a magnetoelectric spinning spindle power sensor.
Background
In 8 months of 1831, electromagnetic induction law was discovered by Michael Faraday (9 months, 22 days of 1791 to 25 months of 1867, 8 months, 25 days of 1791) of a physicist of british, in 1832, a lot of electromagnetic experiments were developed by a physicist of russia inspired by Faraday's electromagnetic induction law, and in 1833, a paper "direction of current caused by kinetic induction" was published, which indicates that: the induced current is directed in such a way that the magnetic field it generates is opposite to the direction of change of the original magnetic field which causes the induction. In 1865 maxwell, uk deduced from electromagnetic theory the existence of an electromagnetic wave, which propagated at the speed of light and concluded that light was an electromagnetic wave. Since then, the law of electromagnetic induction has gradually gained wide application, and the principle of magnetoelectric sensing is the concrete application embodiment of the law of faraday electromagnetic induction in sensor technology. In the automotive engineering department of Qinghua university in 2006, Song nationality, Lijun, Hulinfeng, Jianggan Yiyi and the like, a magnetoelectric rotating speed sensor for a high-voltage diesel engine is developed on the basis of researching the magnetoelectric rotating speed sensing principle, and the sensor can be installed on an electric control diesel engine to replace import. The matching problem of the magnetoelectric sensor and the signal regulator is researched in 2010 by Songhihong, Tianhuibeng and Huanghaohua of the institute of engineering mechanics of the Chinese earthquake administration. Output voltage characteristics of the magnetoelectric speed sensor for the electric control diesel engine are researched by Yuandong, Tianfeng, Zhang dendromei and Yanglin of an automobile electronic technology research institute of Shanghai university of transportation in 2013, and the fact that the output voltage at low speed can be improved by reducing the installation clearance is pointed out. Junde and northward-off of the science and engineering college of manufacturing science and engineering of the southwest science and technology university in 2014 research the magnetic field change of the shuttle-type check valve spool displacement magnetoelectric sensor, and provide a theoretical basis for pipeline safety guarantee. A magnetic electronic rotating speed sensor for a worm gear engine is developed in AnJING month of the thirty-first institute of the third institute of aerospace science and industry, 2017. It can be seen that, although the magnetoelectric sensor is applied, the research on the application of the magnetoelectric sensor is not widely developed, and the magnetoelectric sensor is not widely applied, and the application of the magnetoelectric sensor is mainly focused in the field of automobiles at present.
The spinning spindle is one of the main components for twisting and winding on a spinning machine, is one of the key components commonly used on the spinning machine, and whether the spindle normally works on line or not and the power consumption and the rotating speed of the spindle on line are the key parameters generally concerned by the textile industry. Because the working modes of the spindle and the spindle foot are pull-plug type, and the traditional spindle is a pure mechanical precision mechanism, the mechanical structure in the spindle foot is complex, the size of parts is small, the requirement on processing precision is high, and the assembly process is complicated, the manufacturing cost of the traditional spindle is relatively high. If the spinning spindles do not rotate due to a certain fault in the working process, the operators of the spinning machine are difficult to learn and repair in time, the real-time power consumption of each spinning spindle in working is unknown, the mechanical structure of the spinning spindle is difficult to optimize according to actual conditions, the online power consumption of all the spindles of one spinning machine is difficult to evaluate, and the performances of the spindles of different types are difficult to analyze and evaluate properly, so the automation degree of the spinning machine is also low.
In order to measure the consumed power and the rotating speed of the spindle on line, people pay more attention to how to detect the consumed power and the rotating speed of the spindle on line by using the prior art without changing the established working mode of the traditional spindle.
Disclosure of Invention
Aiming at the situation that the spindle with the problem cannot be judged in time in the batch production process of the spinning machine, the invention provides the magnetoelectric spinning spindle power sensor based on the Faraday electromagnetic induction effect, which can accurately acquire the online consumed power of all the spindles and monitor the online consumed power in real time, is favorable for maintaining or replacing the spindle with the problem in time and improves the industrial production efficiency.
The technical scheme of the invention is realized as follows: a magnetoelectric spinning spindle power sensor comprises a spindle blade and a spindle foot, wherein the spindle blade and the spindle foot are movably connected to form a closed structure, a clutch component, a magnet, a magnetoelectric sensitive component and an integrated conversion module are arranged in the spindle foot, the clutch component is sleeved at the bottom of the spindle blade and is movably connected with the spindle blade, and when the spindle blade rotates, the clutch component and the spindle blade rotate together; the magnetoelectric sensitive component is sleeved on one side of the clutch component far away from the spindle blade, the magnetoelectric sensitive component is fixedly connected with the outer side of the clutch component, and the magnetoelectric sensitive component does not rotate along with the spindle blade; the induction coil of the magnetoelectric sensitive component is matched with the magnet, and except the induction coil, other structures of the magnetoelectric sensitive component are made of insulating materials; the magnet is positioned on one side of the clutch component far away from the spindle blade, the magnet is movably connected with the inner side of the clutch component, and the magnet and the spindle blade rotate together; and a signal extraction resistor Rf of the magnetoelectric sensitive component is electrically connected with the induction coil to form a closed loop, and the signal extraction resistor Rf is electrically connected with the integrated conversion module. When the spindle blade rotates, the magnet and the spindle blade rotate together, namely the magnetic field rotates in space at the speed of the spindle blade, the induction coil does not move, so that magnetic lines of force are forced to cut, induced electromotive force is generated in the magnetoelectric sensitive component, the signal extraction resistor Rf is electrically connected with the induction coil to form a closed loop, corresponding induced voltage and induced current are generated in the signal extraction resistor Rf, the integrated conversion module multiplies two data after measuring the induced voltage and the induced current to obtain the consumed power of the spindle, and the integrated conversion module is connected with the outside to output a measuring result.
Furthermore, the clutch assembly comprises a clutch key, a clutch assembly supporting assembly and an axial thrust ball bearing, wherein a supporting table is arranged at the upper part of the clutch key, and the supporting table is movably connected with the clutch assembly supporting assembly through the axial thrust ball bearing; a through hole is arranged in the clutch key, an outward extending shaft at the bottom of the spindle blade is fixedly connected with the clutch key after being inserted into the through hole, and the clutch key rotates along with the spindle blade; the clutch key can be connected or separated with the spindle blade through a key or an internal gear; the axial thrust ball bearing is sleeved on the clutch key, one side of the axial thrust ball bearing is fixedly connected with the support table, and the other side of the axial thrust ball bearing is fixedly connected with the upper part of the clutch assembly support assembly; the clutch component supporting assembly part is sleeved on the clutch key, the clutch component supporting assembly part is movably connected with the clutch key, and the lower part of the clutch component supporting assembly part is connected with the magnetoelectric sensitive component; the magnet is located the lower part of through-hole, magnet and separation and reunion key assembly connection, and the magnet cooperatees with the sensitive subassembly of magnetoelectricity. The axial thrust ball bearing plays a role in axially supporting and positioning the clutch key.
Furthermore, the clutch component supporting assembly part comprises a clutch component supporting outer sleeve, the clutch component supporting outer sleeve is sleeved on the clutch key, and the clutch component supporting outer sleeve is movably connected with the clutch key through a mechanical bearing; the outer side of the mechanical bearing is fixedly connected with the clutch component supporting outer sleeve, and the inner side of the mechanical bearing is fixedly connected with the clutch key; the mechanical bearing is an angular contact ball bearing, a roller bearing or an angular contact thrust bearing, and all the bearings capable of realizing axial and radial positioning can be used; the upper portion and the axial thrust ball bearing fixed connection of separation and reunion subassembly support overcoat, the lower part and the sensitive subassembly fixed connection of magnetoelectricity of separation and reunion subassembly support overcoat. Due to the existence of the mechanical bearing and the axial thrust ball bearing, the clutch component support outer sleeve is not moved when the spindle blade rotates; the mechanical bearing realizes the centripetal positioning of the spindle blade, prevents the deflection phenomenon generated when the spindle blade is connected with the clutch key to rotate together, and enhances the axial rigidity and the centripetal positioning of the spindle blade and the clutch key.
In order to axially press the clutch key and fix the inner race of the mechanical bearing and prevent axial play, the clutch key and the mechanical bearing are fixedly connected through a clutch key end cover; the clutch key end cover is positioned between the clutch component supporting assembly and the magnet, the clutch key end cover is sleeved on the clutch key, and the clutch key end cover is fixedly connected with the clutch key.
In order to provide axial support for the axial thrust ball bearing and play a role in transmission, the clutch assembly support assembly further comprises a clutch assembly support end cover, the clutch assembly support end cover is sleeved on the clutch key, one side of the clutch assembly support end cover is provided with a groove II, the other side of the clutch assembly support end cover is provided with a connecting table, and the connecting table is fixedly connected with the inner wall of the clutch assembly support outer sleeve; the axial thrust ball bearing is arranged in the groove II; the number of clutch assembly support overcoat is two at least, and supports the end cover through clutch assembly between two clutch assembly support overcoat and connect.
Furthermore, the magnetoelectric sensitive assembly also comprises an induction coil framework and an induction coil framework end cover, the upper part of the induction coil framework is fixedly connected with the clutch assembly through the induction coil framework end cover, and a groove I is arranged in the circumferential direction of the lower part of the induction coil framework; the induction coil is arranged in the groove I and wound on the inner wall of the groove I, and the induction coil framework is arranged outside the magnet. The induction coil framework is made of insulating materials.
Preferably, all be equipped with insulating gasket between induction coil skeleton and the clutch assembly, between induction coil skeleton and the induction coil skeleton end cover, and insulating gasket and clutch assembly and induction coil skeleton end cover fixed connection. The insulating spacer functions to isolate the induction coil from other structures in terms of electrical performance.
Further, the integrated conversion module comprises a power calculation module, a memory and a signal output module, wherein the power calculation module comprises a power amplifier, an analog multiplier and a power factor controller, the input of the analog multiplier is electrically connected with the signal extraction resistor Rf, and the output of the analog multiplier is electrically connected with the power amplifier; the power amplifier is electrically connected with the power factor controller; the power factor controller is electrically connected with the memory; the memory is electrically connected with the signal output module; the signal output module comprises an analog-to-digital conversion chip, the input of the analog-to-digital conversion chip is electrically connected with the memory, and the output of the analog-to-digital conversion chip penetrates out of the bottom of the spindle foot through a wire.
Preferably, the integrated conversion module is positioned at the bottom of the spindle foot, and an insulating isolation plate is arranged between the integrated conversion module and the magnetoelectric sensitive component; the insulating isolation plate is movably connected with the spindle foot. The magnetoelectricity sensitive component and the integrated conversion module are separated by the insulating isolation plate, and then protection of the magnetoelectricity sensitive component is formed.
Further, the spindle foot comprises a spindle foot end cover and a spindle foot shell, wherein the spindle foot end cover is provided with an output wire hole and a pin positioning process hole, and the spindle foot end cover is connected with the lower part of the spindle foot shell; the outer part of the spindle foot shell is provided with spindle foot external threads, a supporting plate is arranged in the spindle foot shell, the supporting plate is fixedly connected with the spindle foot shell, and the upper part of the spindle foot shell is movably connected with a spindle blade; the integrated conversion module is positioned in the spindle foot end cover and is fixedly connected with the spindle foot end cover, and the output of the integrated conversion module is led out from the output wire hole through a wire and then is connected with external equipment; the spindle blade comprises a spindle shaft and a spindle disc, and the spindle disc is sleeved on the spindle shaft and is assembled and connected with the spindle shaft; an outward extending shaft is arranged on the lower side of the spindle shaft, and the spindle shaft and the spindle disc are assembled and then are assembled and connected with the clutch assembly through the outward extending shaft; the spindle disk is connected with the spindle foot shell.
The appearance of the magnetoelectric spinning spindle power sensor is consistent with that of the traditional spinning spindle, so mechanical components related to the appearance of the magnetoelectric spinning spindle power sensor, such as a spindle blade, a spindle foot and the like, are the same as the design of the traditional spinning spindle. The spindle foot is fixed with a textile machine, yarns, a yarn tube and a spindle blade rotate at the same rotating speed under the action of a conveying belt, the spindle blade extends into the spindle foot, so that continuous relative rotation is inevitably generated between the spindle blade and the spindle foot, a magnet rotates together with the spindle blade under the drive of a clutch key, an induction coil in the spindle foot is not moved, the rotation of the spindle blade is equivalent to that a magnetic field rotates in the spindle foot space at the spindle blade speed, the induction coil is forced to cut magnetic lines due to the non-movement, and the output of a power sensor of the magneto-electric spinning spindle is induced electromotive force according to Faraday's law of electromagnetic induction, so that the induction coil can be regarded as a variable power supply in a circuit, and the consumed power on a load of the variable power supply is the online consumed power of the spindle. The signal extraction resistor Rf and the induction coil are a closed loop, so the current on the signal extraction resistor Rf is the induced current.
The calculation formula of the induced electromotive force on the induction coil is as follows:
wherein W represents the effective number of turns of the coil fixed in the spindle foot, phi represents the flux of the turn-link coil, B represents the magnetic induction intensity of the magnetic field, theta represents the included angle between the normal direction of the plane of the induction coil and the direction of the magnetic field, S represents the sectional area of each turn of the coil, omega represents the rotation angular velocity of the spindle blade relative to the spindle foot, and t represents time.
When θ is 90 °, the following is obtained from (1-1):
e＝WBSω； (1-2)
it can be seen that B, S, W are all constant values after the structure of the sensing element of the magnetoelectric spinning spindle power sensor is determined, so the output induced electromotive force e of the magnetoelectric sensing element is in direct proportion to the spindle angular velocity omega.
As is known, there is a defined relationship between the angular velocity ω and the rotation speed n:
in the formula, n represents the rotating speed of the spindle.
Combining formula (1-2) and formula (1-3) to obtain:
wherein:
combining formula (1-1) and formula (1-3) to obtain:
wherein:
therefore, the output induced electromotive force e of the magnetoelectric spinning spindle power sensor is directly proportional to the spindle rotating speed n.
The corresponding induced voltage and induced current are measured by the sensor, and the online consumed power of the spinning spindle can be measured by the power calculation module according to the relation between the power and the voltage and the current. When the spindle blade rotates abnormally due to some reason, abnormal induced voltage and induced current are generated on the induction coil in the spindle foot, and the online consumed power obtained by the power calculation module is also abnormal. In addition, if the induced voltage (induced electromotive force) in the magnetoelectric sensitive component is directly amplified, regulated and converted, the output voltage corresponding to the spindle rotating speed can be obtained. By using the known online consumed power and the rotating speed (corresponding to the output voltage) of the spindle, the dynamic torque acted on the spindle by the transmission belt can be obtained through an analog circuit according to the relation between the power and the rotating speed. Therefore, the magnetoelectric spinning spindle power sensor provided by the invention can also output the following detection parameters: the spindle consumes power, spindle speed, spindle instantaneous angular velocity and dynamic torque online.
The invention has the following beneficial effects: the spindle is converted into the magnetoelectric spinning spindle power sensor, the clutch component, the magnet, the magnetoelectric sensitive component and the integrated conversion module are positioned inside except that the lead is exposed, the spindle can work like a traditional spindle, the rotating speed and the consumed power of the spindle can be measured on line in real time, and whether the spindle is in a normal working state or not is judged through measurement data. The invention keeps the existing pulling and inserting installation mode, working mode and fixing mode of the traditional spindle, keeps the advantages of the working mode of the traditional spindle, converts the traditional spinning spindle blade into a sensing guide element, transforms the traditional spindle blade into a sensing spindle blade, realizes the clutch between the spindle blade and a magnetoelectricity sensitive component through a clutch component in the pulling and inserting mode of the traditional spindle, and simultaneously, the inside of the spindle blade is not provided with a precise transmission mechanical mechanism and an oil lubrication mechanism of the traditional spindle; when the spindle blade rotates along with the yarn barrel, the spindle blade is connected with the clutch key, so that the rotation of the spindle blade necessarily drives the clutch key to rotate at the same speed, the magnet fixed at the tail of the clutch key also necessarily rotates at the same speed, and the motion states of the magnet and the spindle blade are the same. In a word, the invention has the advantages of clear structure, stable performance, high sensitivity, repeated use in severe environment, mass production, low cost, long service life and no change of the existing working mode of the traditional spindle.
In addition, the structural parts of the invention are all manufactured by adopting the processes of conventional machining, nesting assembly, metal wire welding and the like, can be applied to various spinners and twisting frames in the textile industry, is beneficial to improving the automation level of spinning equipment such as various spinners and twisting frames in the textile industry, improving the working reliability and the production efficiency of the spinners and twisting frames, eliminating spindle faults in time when the spinning equipment works, and can also be used for the aspects of spinning spindle power test and the like, so that an operator can judge whether a certain spindle has a problem in time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the bolster of the present invention.
Fig. 3 is a cross-sectional view of the spindle foot of the present invention.
Fig. 4 is a schematic view of the spindle foot end cover of the present invention.
FIG. 5 is a schematic view of an ingot rod of the present invention.
FIG. 6 is a schematic view of a clutch pack support housing of the present invention.
FIG. 7 is a schematic view of a sleeve support of the present invention.
FIG. 8 is a schematic view of a clutch assembly support end cap of the present invention.
Fig. 9 is a schematic view of the clutch assembly support assembly of the present invention.
Fig. 10 is a cross-sectional view of the clutch assembly support assembly of the present invention.
FIG. 11 is a schematic view of a clutch key of the present invention.
FIG. 12 is a schematic view of a clutch key end cap of the present invention.
FIG. 13 is a schematic view of a clutch assembly of the present invention.
FIG. 14 is a cross-sectional view of the clutch assembly of the present invention.
Fig. 15 is a schematic view of an induction coil bobbin of the present invention.
Fig. 16 is a schematic view of an induction coil bobbin end cap of the present invention.
Fig. 17 is a schematic view of an induction coil bobbin and induction coil bobbin end cap assembly of the present invention.
FIG. 18 is an assembly view of a clutch assembly, an induction coil former, and an induction coil former end cap of the present invention.
Fig. 19 is an external view of the present invention.
Fig. 20 is a schematic view of a magneto-electrically sensitive assembly of the present invention.
FIG. 21 is a schematic view of a spindle of the present invention.
FIG. 22 is a schematic view of a spindle plate of the present invention.
In the figure, 1 is a spindle blade, 2 is a spindle foot, 3 is a clutch component, 4 is a magnet, 5 is a magnetoelectric sensitive component, 6 is an integrated conversion module, 7 is an induction coil framework, 8 is an induction coil framework end cover, 10 is a clutch key, 11 is a clutch component supporting assembly part, 12 is a clutch key end cover, 13 is an axial thrust ball bearing, 14 is a clutch component supporting outer sleeve, 15 is a sleeve supporting piece, 16 is a clutch component supporting end cover, 18 is a lead, 19 is a spindle hook, 20 is a spindle foot external thread, 2-1 is a spindle foot end cover, 2-2 is a spindle foot shell, 2-3 is an output lead hole, 2-4 is a pin positioning process hole, 1-1 is a spindle shaft, 1-2 is a spindle disc, 21 is a mechanical bearing, and 22 is a bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, the magnetoelectric spinning spindle power sensor comprises a spindle blade 1 and a spindle foot 2, wherein the spindle foot 2 is movably connected with the spindle blade 1, the spindle blade 1 can rotate relative to the spindle foot 2, and a closed structure is formed between the spindle blade 1 and the spindle foot 2; as shown in fig. 4, the spindle foot 2 comprises a spindle foot end cover 2-1 and a spindle foot shell 2-2, an output wire guide hole 2-3 and a pin positioning process hole 2-4 are arranged on the outer side of the spindle foot end cover 2-1, the output wire guide hole 2-3 is located in the center of the lower part of the spindle foot end cover 2-1, and the pin positioning process hole 2-4 is located on the outer side of the output wire guide hole 2-3; the inner side of the spindle foot end cover 2-1 is fixedly connected with the lower part of the spindle foot shell 2-2; as shown in fig. 2, a spindle foot external thread 20 is arranged on the spindle foot shell 2-2, when in use, the spindle foot external thread 20 is in threaded connection with a spinning machine, and the upper part of the spindle foot shell 2-2 is movably connected with the spindle blade 1; as shown in fig. 3, a supporting plate is arranged inside the spindle foot shell 2-2, and the supporting plate is fixedly connected with the spindle foot shell 2-2; as shown in fig. 19, in order to prevent the belt from slipping off during operation and keep the transportation mode of the conventional spindle unchanged, the spindle base 2 is further provided with a spindle hook 19, the spindle hook 19 is fixedly connected with the spindle base housing 2-2, and when in use, the spindle hook 19 is connected with the belt to prevent the belt from slipping off during operation. The pin locating tooling holes 2-4 may serve a locating function when assembling the present invention. As shown in fig. 5, the spindle bar 1 comprises a spindle 1-1 and a spindle disk 1-2, wherein the spindle disk 1-2 is fixed on the spindle 1-1; an outward extending shaft is arranged on the lower side of the spindle shaft 1-1; the spindle disc 1-2 is fixedly connected with the spindle foot shell 2-2.
Furthermore, a clutch component 3, a magnet 4 and a magnetoelectric sensitive component 5 are arranged in the spindle foot shell 2-2, namely the clutch component 3, the magnet 4 and the magnetoelectric sensitive component 5 are arranged in a closed structure consisting of the spindle disk 1-2, the spindle foot shell 2-2 and the spindle foot end cover 2-1; an integrated conversion module 6 is arranged in the spindle foot end cover 2-1, the integrated conversion module 6 is fixed in the spindle foot end cover 2-1, and the output of the integrated conversion module 6 is led out from the output wire hole 2-3 through a wire 18. The lead wire 18 is led out from the bottom of the spindle foot end cover 2-1 and then is connected with external equipment, so that the output mode does not influence the traditional fixing mode of the spindle on a textile machine, and the lead wire is also beneficial to leading out signals. The clutch component 3 is sleeved at the lower part of the spindle blade 1, the spindle blade 1 is fixedly connected with the clutch component 3 through an outward extending shaft, the clutch component 3 rotates along with the spindle blade 1 when the spindle blade 1 rotates, and the spindle foot 2 does not move; the magnetoelectric sensitive component 5 is sleeved on one side of the clutch component 3, which is far away from the spindle blade 1, the magnetoelectric sensitive component 5 is fixedly connected with the outer side of the clutch component 3, and the magnetoelectric sensitive component 5 does not rotate along with the spindle blade 1; the induction coil of the magnetoelectric sensitive component 5 is matched with the magnet 4; the magnet 4 is fixed on the inner side of the clutch component 3 far away from the spindle blade 1, and the magnet 4 rotates together with the spindle blade 1; as shown in fig. 20, the signal extraction resistor Rf of the magneto-electric sensitive component 5 is electrically connected to the induction coil to form a closed loop, and the signal extraction resistor Rf is electrically connected to the integrated conversion module 6.
When the spindle blade 1 rotates, the magnet 4 rotates together with the spindle blade 1, which is equivalent to that the magnetic field rotates in space at the speed of the spindle blade 1, and since the induction coil is stationary, which is equivalent to that the magnetic lines of force are forced to cut, thereby generating induced electromotive force in the magnetoelectric sensitive component 5, the signal extraction resistor Rf and the induction coil are a closed loop, corresponding induced voltage and induced current are generated in the signal extraction resistor Rf, the integrated conversion module 6 measures the induced voltage and the induced current in the signal extraction resistor Rf, multiplies the two data to obtain the consumed power of the spindle, and the integrated conversion module 6 is connected with the outside and outputs the measured result after processing.
As shown in fig. 13 and 14, the clutch assembly 3 includes a clutch key 10, a clutch assembly support assembly 11 and an axial thrust ball bearing 13, wherein a support table is arranged on the upper portion of the clutch key 10, and the support table is movably connected with the clutch assembly support assembly 11 through the axial thrust ball bearing 13; a through hole is arranged in the clutch key 10, an extended shaft at the bottom of the spindle blade 1 is fixedly connected with the clutch key 10 after being inserted into the through hole, the clutch key 10 rotates along with the spindle blade 1, and the clutch key 10 can be connected with and separated from the spindle blade 1 through a key or an inner gear; the axial thrust ball bearing 13 is sleeved on the clutch key 10, one side of the axial thrust ball bearing 13 is fixedly connected with the support table, and the other side of the axial thrust ball bearing 13 is fixedly connected with the upper part of the clutch assembly support assembly 11; the clutch component supporting assembly part 11 is sleeved on the clutch key 10, the clutch component supporting assembly part 11 is movably connected with the clutch key 10, and the lower part of the clutch component supporting assembly part 11 is connected with the magnetoelectric sensitive component 5; the magnet 4 is positioned at the lower part of the through hole, the magnet 4 is in interference fit with the through hole, and the magnet 4 is fixed at the tail of the clutch key 10 through a bolt 22; the axial thrust ball bearing 13 plays a role in axially supporting and positioning the clutch key 10.
As shown in fig. 6 and 9, the clutch assembly support assembly 11 includes a clutch assembly support outer sleeve 14, the clutch assembly support outer sleeve 14 is sleeved on the clutch key 10, and the clutch assembly support outer sleeve 14 is movably connected with the clutch key 10 through a mechanical bearing 21; the mechanical bearing 21 is positioned between the clutch key 10 and the clutch component supporting outer sleeve 14, the outer side of the mechanical bearing 21 is fixedly connected with the clutch component supporting outer sleeve 14, and the inner side of the mechanical bearing 21 is fixedly connected with the clutch key 10; the mechanical bearing 21 may be an angular contact ball bearing, a roller bearing or an angular contact thrust bearing, and all bearings capable of realizing axial and radial positioning at the same time may be used; the upper part of the clutch component supporting outer sleeve 14 is fixedly connected with the axial thrust ball bearing 13, and the lower part of the clutch component supporting outer sleeve 14 is fixedly connected with the magnetoelectric sensitive component 5. The inner race and balls of the mechanical bearing 21 rotate with the rotation of the spindle shaft 1, but the outer race of the mechanical bearing 21 and the clutch assembly support outer 14 do not move. The mechanical bearing 21 realizes the centripetal positioning of the spindle blade 1, prevents the deflection phenomenon generated when the spindle blade 1 and the clutch key 10 are connected together to rotate, and enhances the axial rigidity and the centripetal positioning of the spindle blade 1 and the clutch key 10.
In order to axially press the clutch key 10 and fix the inner race of the mechanical bearing 21 and prevent axial play, the clutch key 10 and the mechanical bearing 21 are pressed through the clutch key end cover 12; the clutch key end cover 12 is positioned between the clutch component supporting assembly 11 and the magnet 4, a contact table is arranged at the upper part of the clutch key end cover 12, the clutch key end cover 12 is sleeved on the clutch key 10, and the clutch key end cover 12 is fixedly connected with the clutch key 10 through a bolt; the contact land is pressed against the inner race of the mechanical bearing 21.
As shown in fig. 7, in order to axially support the clutch assembly support housing 14, the clutch assembly support assembly 11 further includes a sleeve support 15, and the sleeve support 15 is fixedly connected to an inner wall of the clutch assembly support housing 14.
As shown in fig. 8, in order to provide axial support for the axial thrust ball bearing 13 and play a role in transmission, the clutch assembly 3 further includes a clutch assembly support end cover 16, the clutch assembly support end cover 16 is sleeved on the clutch key 10, one side of the clutch assembly support end cover 16 is provided with a groove II, the other side of the clutch assembly support end cover 16 is provided with a connecting table, and the connecting table is fixedly connected with the inner wall of the clutch assembly support assembly 11; the axial thrust ball bearing 13 is arranged in the groove II; the number of the clutch assembly supporting outer sleeves 14 is at least two, and the two clutch assembly supporting outer sleeves 14 are fixedly connected through a clutch assembly supporting end cover 16. The lower part of one clutch assembly supporting outer sleeve 14 is fixedly connected with the side wall of the groove II, and the upper part of the other clutch assembly supporting outer sleeve 14 is tightly matched with the connecting platform of the supporting end cover 16.
In the present embodiment, the mechanical bearing 21 is an angular contact ball bearing; the number of the clutch assembly supporting assembly parts 11 is 2, and one clutch assembly supporting assembly part 11 comprises a clutch assembly supporting outer sleeve 14, a sleeve supporting part 15 and two mechanical bearings 21; the inner wall of one side of the clutch assembly supporting outer sleeve 14 is provided with a convex block, the clutch assembly supporting outer sleeve 14 is positioned between the two mechanical bearings 21, and the convex block, the outer race of the first mechanical bearing 21, the clutch assembly supporting outer sleeve 14, the outer race of the second mechanical bearing 21 and the connecting table are closely arranged and connected on the inner wall of the clutch assembly supporting outer sleeve 14 and can play a role of axially supporting the mechanical bearings 21.
As shown in fig. 17, the magnetoelectric sensitive component 5 further includes an induction coil bobbin 7 and an induction coil bobbin end cover 8, and both the induction coil bobbin 7 and the induction coil bobbin end cover 8 are sleeved on the clutch component 3; the upper part of the induction coil framework end cover 8 is fixedly connected with the clutch assembly 3 through the induction coil framework end cover 8; the lower part of the induction coil framework end cover 8 is provided with a concave part; the concave part is tightly assembled and connected with a boss at the upper part of the induction coil framework 7, and a groove I is arranged in the circumferential direction of the lower part of the induction coil framework 7; the induction coil is positioned in the groove I and wound on the inner wall of the groove I, so that the induction coil is convenient to arrange and protect, and extrusion of other structures on the induction coil in the assembling process is avoided. The end cover 8 of the induction coil framework can axially support the clutch component 3, and the induction coil framework is arranged outside the magnet.
Preferably, be equipped with insulating pad between induction coil skeleton 7 and the clutch assembly 3, between induction coil skeleton 7 and the induction coil skeleton end cover 8, and insulating pad bonds with clutch assembly 3 and induction coil skeleton end cover 8, and insulating pad has played the effect of keeping apart induction coil and separation and reunion key 10, induction coil skeleton end cover 8 from the aspect of electrical property.
Further, the integrated conversion module 6 comprises a power calculation module, a memory and a signal output module, wherein the power calculation module comprises a power amplifier, an analog multiplier and a power factor controller, the input of the analog multiplier is electrically connected with the signal extraction resistor Rf, and the output of the analog multiplier is electrically connected with the power amplifier; the power amplifier is electrically connected with the power factor controller; the power factor controller is electrically connected with the memory; the memory is electrically connected with the signal output module; the signal output module comprises an analog-to-digital conversion chip, the input of the analog-to-digital conversion chip is electrically connected with the memory, and the output of the analog-to-digital conversion chip penetrates out of the bottom of the spindle foot 2 through a lead 18. The power calculation module is used for measuring the induction voltage and the induction current on the signal extraction resistor Rf and calculating the real-time consumed power of the spindle according to the induction voltage and the induction current; the memory is used for storing power data; the signal output module is used for outputting the real-time consumed power of the spindle to the outside so as to judge the working state of the spindle. The invention can convert the power consumed by the spindle rotation into an electric signal which is easy to measure without an auxiliary power supply, after the signal to be measured extracts the induced voltage and the induced current generated in the resistor Rf, the power calculation module multiplies the induced voltage and the induced current to obtain the real-time consumed power of the spindle, and in addition, the integrated conversion module 6 can convert the consumed power of the spindle, the induced voltage and the induced current into the sensor output range specified in the national standard of China. In this embodiment, the model of the power amplifier is LM1875, the model of the analog multiplier is ADL5391, and the model of the power factor controller is TDA 4863G; the memory comprises 64-bit read-write memory, and the model of the 64-bit read-write memory is 74LS 89; the model of the analog-to-digital conversion chip is AD 0832.
An insulating isolation plate is arranged between the integrated conversion module 6 and the magnetoelectricity sensitive component 5, the insulating isolation plate is located on the supporting plate and fixedly connected with the spindle foot shell 2-2, and the insulating isolation plate and the supporting plate play a role in axially supporting the clutch component 3 and the magnetoelectricity sensitive component 5. The upper part of the insulating isolation plate is in contact with the lower part of the induction coil framework 7, and the induction coil is positioned between the insulating isolation plate and the induction coil framework, so that the magnetoelectric sensitive component 5 and the integrated conversion module 6 are separated by the insulating isolation plate, and the protection of the magnetoelectric sensitive component 5 is formed.
In the embodiment, the end cover 2-1 of the spindle foot and the shell 2-2 of the spindle foot are both made of No. 45 steel through conventional machining; as shown in fig. 21 and 22, the spindle 1-1 and the spindle disk 1-2 are both made of ball bearing steel materials, and the spindle 1-1 and the spindle disk 1-2 are assembled to form a spindle blade 1; as shown in fig. 10, the clutch assembly support housing 14, the sleeve support member 15 and the clutch assembly support end cover 16 are all made of 45# steel by conventional machining, and the mechanical bearing 21, the clutch assembly support housing 14, the sleeve support member 15 and the clutch assembly support end cover 16 are assembled to form the clutch assembly support assembly 11; as shown in fig. 11, the clutch key 10 is made of ball bearing steel material; as shown in fig. 12, the clutch key end cover 12 is made of 45# steel by conventional machining, as shown in fig. 18, an axial thrust ball bearing 13, two clutch component support assembly parts 11, a clutch key end cover 12 and a standard hexagon socket head cap screw are assembled together, a clutch component support end cover 16 on one side of a first clutch component support assembly part 11 is connected with the axial thrust ball bearing 13, the other side of the first clutch component support assembly part 11 is connected with a clutch component support end cover 16 on one side of a second clutch component support assembly part 11, the other side of the second clutch component support assembly part 11 is connected with an induction coil framework end cover 8, and the clutch key end cover 12 is connected with a clutch key 10 and a mechanical bearing 21 through the standard hexagon socket head cap screw; as shown in fig. 15, the induction coil bobbin 7 is made of insulating high-temperature-resistant plastic by using an injection molding process or machining, and as shown in fig. 16, the induction coil bobbin end cover 8 is made of 45# steel by using conventional machining. In the present embodiment, all the parts of the clutch assembly 3 requiring lubrication are grease lubricated, and the magnet 4 is a magnet.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A magneto-electric spinning spindle power sensor comprises a spindle blade (1) and a spindle foot (2), wherein the spindle blade (1) is movably connected with the spindle foot (2), and is characterized in that a clutch component (3), a magnet (4), a magneto-electric sensitive component (5) and an integrated conversion module (6) are arranged inside the spindle foot (2), the clutch component (3) is sleeved on the lower portion of the spindle blade (1), and the clutch component (3) is fixedly connected with the spindle blade (1); the magnetoelectric sensitive component (5) is sleeved on one side of the clutch component (3) far away from the spindle blade (1), and the magnetoelectric sensitive component (5) is fixedly connected with the outer side of the clutch component (3); an induction coil of the magnetoelectric sensitive component (5) is matched with the magnet (4); the magnet (4) is fixedly connected with the inner side of the clutch component (3); a signal extraction resistor Rf of the magnetoelectric sensitive component (5) is electrically connected with the induction coil to form a closed loop, and the signal extraction resistor Rf is electrically connected with the integrated conversion module (6); the integrated conversion module (6) comprises a power calculation module, a memory and a signal output module, wherein the power calculation module comprises a power amplifier, an analog multiplier and a power factor controller, the input of the analog multiplier is electrically connected with a signal extraction resistor Rf, and the output of the analog multiplier is electrically connected with the power amplifier; the power amplifier is electrically connected with the power factor controller; the power factor controller is electrically connected with the memory; the memory is electrically connected with the signal output module; the signal output module comprises an analog-to-digital conversion chip, and the analog-to-digital conversion chip is electrically connected with the memory.
2. The magnetoelectric spinning spindle power sensor according to claim 1, characterized in that the clutch component (3) comprises a clutch key (10) and a clutch component supporting assembly part (11), the clutch key (10) is arranged in the clutch component supporting assembly part (11), and the clutch key (10) is movably connected with the clutch component supporting assembly part (11); a supporting table is arranged at the upper part of the clutch key (10), and the clutch key (10) is fixedly connected to an outward extending shaft at the lower part of the spindle blade (1); the supporting platform is movably connected with the clutch component supporting assembly (11) through an axial thrust ball bearing (13); one side of the axial thrust ball bearing (13) is connected with the support table, and the other side of the axial thrust ball bearing (13) is connected with the upper part of the clutch assembly support assembly (11); the lower part of the clutch component supporting assembly part (11) is connected with the magneto-electricity sensitive component (5); the magnet (4) is fixedly connected with the lower part of the clutch key (10).
3. The magnetoelectric spinning spindle power sensor according to claim 2, characterized in that the clutch assembly support assembly (11) comprises a clutch assembly support outer sleeve (14), the clutch assembly support outer sleeve (14) is movably connected with the clutch key (10), the upper part of the clutch assembly support outer sleeve (14) is connected with the axial thrust ball bearing (13), and the lower part of the clutch assembly support outer sleeve (14) is fixedly connected with the magnetoelectric sensitive assembly (5).
4. The magnetoelectric spinning spindle power sensor according to claim 3, characterized in that the clutch assembly (3) further comprises a clutch key end cover (12), the clutch key end cover (12) is located between the clutch assembly support assembly member (11) and the magnet (4), and the clutch key end cover (12) is fixedly connected with the clutch key (10).
5. The magnetoelectric spinning spindle power sensor according to claim 3 or 4, characterized in that the clutch assembly supporting assembly member (11) further comprises a clutch assembly supporting end cover (16), the clutch assembly supporting end cover (16) is sleeved on the clutch key (10), one side of the clutch assembly supporting end cover (16) is provided with a groove II, the other side of the clutch assembly supporting end cover (16) is provided with a connecting table, and the connecting table is connected with the inner wall of the clutch assembly supporting outer sleeve (14); the axial thrust ball bearing (13) is arranged in the groove II; the number of the clutch component supporting outer sleeves (14) is at least two, and the two clutch component supporting outer sleeves (14) are connected through a clutch component supporting end cover (16).
6. The magnetoelectric spinning spindle power sensor according to claim 1, 2 or 3, characterized in that the magnetoelectric sensing assembly (5) further comprises an induction coil bobbin (7) and an induction coil bobbin end cover (8), the upper part of the induction coil bobbin (7) is fixedly connected with the clutch assembly (3) through the induction coil bobbin end cover (8), and a groove I is arranged in the circumferential direction of the lower part of the induction coil bobbin (7); the induction coil is arranged in the groove I, and the induction coil framework (7) is arranged outside the magnet (4).
7. The magnetoelectric spinning spindle power sensor according to claim 6, characterized in that insulating spacers are arranged between the induction coil bobbin (7) and the clutch assembly (3) and between the induction coil bobbin (7) and the induction coil bobbin end cover (8), and the insulating spacers are fixedly connected with the clutch assembly and the induction coil bobbin end cover (8).
8. Magnetoelectric spinning spindle power sensor according to claim 1, characterized in that the integrated conversion module (6) is located at the bottom of the spindle foot (2) and an insulating spacer plate is provided between the integrated conversion module (6) and the magnetoelectric sensitive component (5); the insulating isolation plate is connected with the spindle foot (2).
9. A magnetoelectric spinning spindle power sensor according to claim 1 or 8, characterized in that the spindle foot (2) comprises a spindle foot end cover (2-1) and a spindle foot shell (2-2), the spindle foot end cover (2-1) is provided with an output wire guide hole (2-3), and the spindle foot end cover (2-1) is connected with one side of the spindle foot shell (2-2); the other side of the spindle foot shell (2-2) is movably connected with the spindle blade (1), and a supporting plate is arranged in the spindle foot shell (2-2); the integrated conversion module (6) is arranged in the spindle foot end cover (2-1); the spindle blade (1) comprises a spindle shaft (1-1) and a spindle disc (1-2), and the spindle disc (1-2) is movably connected with the spindle shaft (1-1); an outward extending shaft is arranged on the lower side of the spindle shaft (1-1), and the spindle shaft (1-1) and the spindle disc (1-2) are assembled and then are assembled and connected with the clutch component (3) through the outward extending shaft; the spindle disc (1-2) is fixedly connected with the spindle foot shell (2-2).
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| JPH0657549A (en) * | 1992-08-06 | 1994-03-01 | Hitachi Ltd | Spindle device of twisting machine |
| JPH093754A (en) * | 1995-06-16 | 1997-01-07 | Nippon Mayer Kk | Driving mechanism of spindle plate in knitting machine |
| CN102565448B (en) * | 2012-01-14 | 2014-02-05 | 浙江兆丰机电股份有限公司 | Automobile wheel speed sensor |
| CN108385223B (en) * | 2018-01-31 | 2020-11-10 | 南京邮电大学 | High-rotation-speed spinning frame steel wire ring rotation speed detection device and detection method thereof |
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