CN110459095A - A kind of Speech processing teaching platform based on Matlab - Google Patents
A kind of Speech processing teaching platform based on Matlab Download PDFInfo
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- CN110459095A CN110459095A CN201910635100.4A CN201910635100A CN110459095A CN 110459095 A CN110459095 A CN 110459095A CN 201910635100 A CN201910635100 A CN 201910635100A CN 110459095 A CN110459095 A CN 110459095A
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- 238000012545 processing Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 104
- 235000014653 Carica parviflora Nutrition 0.000 claims description 31
- 241000243321 Cnidaria Species 0.000 claims description 31
- 238000012856 packing Methods 0.000 claims description 29
- 238000001125 extrusion Methods 0.000 claims description 23
- 239000007921 spray Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 27
- 230000006378 damage Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 description 8
- 239000011295 pitch Substances 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000013508 migration Methods 0.000 description 3
- 230000005012 migration Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/50—Cleaning by methods involving the use of tools involving cleaning of the cleaning members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
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Abstract
The invention belongs to demonstration equipment technical field, specifically a kind of Speech processing teaching platform based on Matlab, including fixed frame, protection module and demonstration mechanism；Demonstration mechanism is installed, the inside of fixed frame, which is located on front side of demonstration mechanism, is symmetrically arranged with protection module, and there are two motors for installation at corresponding two protection module positions on the outer wall at both ends at the top of fixed frame in the middle part of the fixed frame；The present invention is rotated forward by motor, it is connect using auger with screw thread modular screw, auger is shunk, to squeeze extruding gasbag, tonifying Qi is carried out to strip air bag, the two sides of demonstration mechanism are protected, personnel are avoided to collide with the two sides for demonstrating mechanism, the damage of demonstration mechanism is avoided, safety coefficient is improved, when passing through motor reversal, so that auger restores to the original state, it is contacted using two sliding bars, sheet rubber is driven to close again to demonstration mechanism, effectively reduce the probability that dust is attached in demonstration mechanism.
Description
Technical Field
The invention belongs to the technical field of demonstration equipment, and particularly relates to a Matlab-based voice signal processing teaching demonstration platform.
Background
Matlab is a high-level matrix/array language that contains control statements, functions, data structures, inputs and outputs, and object-oriented programming features. The user can synchronize the input sentence with the execution command in the command window, or can write a large and complicated application program (M file) first and then operate the application program together. The MATLAB language of a new version is based on the most popular C + + language, so that the grammatical features are very similar to those of the C + + language, and the MATLAB language is simpler and more in line with the writing format of scientific and technical personnel on mathematical expressions. So that the method is more convenient for non-computer professional technologists to use. And the language has good portability and extremely strong expansibility, which is also an important reason that MATLAB can be deeply applied to various fields of scientific research and engineering calculation. When the science and technology personnel training to non-computer specialty, can adopt teaching demonstration platform to teach usually, however current teaching demonstration platform can't prevent dust protection to demonstration mechanism after using, simultaneously, when using demonstration mechanism, leads to personnel and demonstration mechanism collision easily, causes demonstration mechanism and personnel to receive the injury.
Disclosure of Invention
In order to make up for the defects of the prior art, the Matlab-based voice signal processing teaching demonstration platform provided by the invention has the advantages that the auger is enabled to contract by virtue of the screw connection of the auger and the screw module through the positive rotation of the motor, so that the extrusion air bag is extruded, the air is supplied to the long-strip-shaped air bag, two side edges of the demonstration mechanism are protected, personnel are prevented from colliding with the two side edges of the demonstration mechanism, the demonstration mechanism is prevented from being damaged, the safety coefficient is improved, the auger is enabled to restore to the original state through the negative rotation of the motor, the rubber sheet is driven to seal the demonstration mechanism again by virtue of the contact of the two sliding rods, and the probability that dust is attached to.
The technical scheme adopted by the invention for solving the technical problems is as follows: the Matlab-based voice signal processing teaching demonstration platform comprises a fixing frame, a protection module and a demonstration mechanism; the middle part of the fixed frame is provided with a demonstration mechanism, the inner side of the fixed frame is symmetrically provided with protection modules at the front side of the demonstration mechanism, two motors are arranged on the outer walls at the two ends of the top of the fixed frame corresponding to the two protection modules, an accommodating groove is formed in the top of the fixed frame, and a thread module is arranged on the inner side of the accommodating groove; the screw module is internally provided with a packing auger; the output end of the motor is in transmission connection with a rotating shaft, and one end of the rotating shaft penetrates through the outer wall of the fixing frame and extends to the central position of one end of the inner side of the accommodating groove to be fixedly connected with a rotating disc; one side of the rotating disc is fixedly connected with one end of the packing auger; the other end of the auger is rotatably connected with a sliding rod, the inner side of the auger is fixedly connected with an extrusion air bag, a one-way valve is arranged on the extrusion air bag, and one end of the extrusion air bag is communicated with an air guide pipe; the top end of the sliding rod is connected with the top of the fixed frame in a sliding manner, and the bottom end of the sliding rod is connected with the bottom of the fixed frame in a sliding manner; the thread module is used for being in spiral connection with the auger; wherein,
the thread module comprises two first internal thread sleeves and two second internal thread sleeves; the two first internal thread sleeves are fixedly connected with the inner walls of the two ends of the accommodating groove respectively, and the adjacent ends of the two first internal thread sleeves are fixedly connected with the second internal thread sleeve; the second internal thread sleeve is fixedly connected with the inner wall of the accommodating groove;
the protection module comprises a strip-shaped air bag and a rubber sheet; the inner side of the rubber sheet is provided with a plurality of strip-shaped air bags which are vertical and parallel to each other, the top ends and the bottom ends of the strip-shaped air bags are respectively communicated with a first guide pipe and a second guide pipe, the inner sides of the top and the bottom of the rubber sheet are respectively provided with a first air guide hose and a second air guide hose, one side of the rubber sheet is fixedly connected with the sliding rod, and the other side of the rubber sheet is fixedly connected with the outer wall of the fixing frame; the first guide pipe is communicated with the first air guide hose; the second guide pipe is communicated with the second air guide hose; one end of the second air guide hose is communicated with an electromagnetic valve fixedly arranged at the bottom of the sliding rod; the electromagnetic valve is used for discharging air in the long strip-shaped air bag; one end of the air duct penetrates through the inner wall of the sliding rod and is communicated with the first air duct hose;
the controller can be arranged on the fixed frame, the controller is electrically connected with the motors and the electromagnetic valve, when the demonstration mechanism is required to be used, the rotating shaft is driven to rotate by positive transmission of the two motors of the controller, the rotating shaft drives the rotating disc to rotate when rotating, the rotating disc drives the screw conveyer to rotate, the screw conveyer is contacted with the spiral grains when rotating at the inner sides of the first internal thread sleeve and the second internal thread sleeve, so that the screw conveyer is contracted when rotating, the sliding rod is driven to move in the direction far away from the vertical central line of the fixed frame, the rubber sheet is pushed to bend when the sliding rod moves, at the moment, the demonstration mechanism is exposed for use, when the demonstration mechanism is completely exposed, the motors are turned off, when the screw conveyer is contracted, air in the inner cavity of the extrusion air bag is guided into the first air guide hose through the air guide tube and then is guided into the inner part of, the collision of personnel with two side edges of the demonstration mechanism is avoided, the damage of the demonstration mechanism is avoided, the safety factor is improved, after the demonstration mechanism is used, the motor is controlled to rotate reversely through the controller, at the moment, the packing auger rotates reversely and rotates along the spiral lines on the inner sides of the first internal thread sleeve and the second internal thread sleeve, the packing auger extends to extrude the air bag to suck air through the one-way valve, the packing auger pushes the sliding rods to move towards the direction close to the vertical central line of the fixing frame, meanwhile, the controller controls the electromagnetic valve to open, the air in the strip-shaped air bag is sequentially discharged through the second guide pipe, the second air guide hose and the electromagnetic valve, the strip-shaped air bag returns to the original state, after the two sliding rods are contacted with each other, the controller controls the motor to stop rotating, the electromagnetic valve is controlled to close, after the two sliding rods are contacted, the rubber, the dust is prevented from entering the inside of the demonstration mechanism to cause short circuit of parts, the service life of the demonstration mechanism is prolonged, and the demonstration mechanism is convenient and fast to use.
Preferably, the pitch of the inner side thread of the first internal thread sleeve is smaller than that of the inner side thread of the second internal thread sleeve; the screw thread on the inner wall of the second internal thread sleeve increases in pitch along the direction far away from the vertical central line of the fixing frame; after the demonstration mechanism finishes using, the rolling disc drives the auger and rotates, the inboard flight motion of No. two internal thread cover is followed to the one end of being connected of auger and slide bar, the inboard flight of No. two internal thread cover is close to the pitch of the vertical central line one side of mount little, thereby make auger and slide bar be connected one end and move to the speed that is close to the vertical central line position department of mount horizontal migration reduce, thereby avoid two slide bars to produce the collision when the contact, make two slide bars steadily contact, the life of extension slide bar.
Preferably, the outer wall of the strip-shaped air bag positioned at the inner side of the fixing frame is fixedly connected with a trapezoidal coral sponge and a trapezoidal shaped sponge; the short side edge of the trapezoidal coral sponge is contacted with the short side edge of the trapezoidal shaped sponge, and the trapezoidal coral sponge is arranged at a position far away from the vertical central line of the fixing frame; the trapezoidal shaped sponge is arranged at a position close to the vertical center line of the fixed frame; when two slide bars kept away from each other, use the direction of motion as the benchmark, trapezoidal coral sponge is located the front side of direction of advance, and trapezoidal coral sponge carries out preliminary clearance to demonstration mechanism's surface to adsorb the dust to the inboard hole of trapezoidal coral sponge in, avoid the surface of the hard dust fish tail demonstration mechanism of big particle diameter, trapezoidal design sponge clears up the surface of demonstration mechanism once more, effectively improves demonstration mechanism's cleaning efficiency.
Preferably, the outer wall of the strip-shaped air bag is fixedly connected with an elastic sheet at a position corresponding to the trapezoidal shaped sponge; one side of the elastic sheet is contacted with the demonstration mechanism, the side of the elastic sheet is fixedly connected with the long side of the trapezoidal shaped sponge, the bottom of the elastic sheet is provided with a tapered hole, and the large end of the tapered hole faces the vertical central line of the fixed frame; have frictional force between one side of flexure strip and demonstration mechanism's the surface, thereby make the flexure strip to the direction slope of being close to the vertical central line of mount, at this moment, the tip of flexure strip bottom bell mouth opens, when the slide bar just begins to move, the air part in the gap between rubber piece and the demonstration mechanism is discharged through the bell mouth, thereby make trapezoidal coral sponge detach with the inboard dust part of trapezoidal design sponge, it is clean to keep trapezoidal coral sponge and trapezoidal design sponge, be favorable to removing dust to demonstration mechanism once more.
Preferably, a pressure valve is embedded and connected at the connecting position of the long-strip-shaped air bag and the first catheter; the number of the pressure valves is multiple, and the rated values of the pressure valves are sequentially increased along the direction far away from the vertical center line of the fixing frame; when the extrusion gasbag received the extrusion, in the leading-in air guide hose of air in its inner chamber, the inside pressure increase of air guide hose, when the pressure value in air guide hose was greater than the rated value of the pressure valve between a rectangular form gasbag adjacent with the slide bar and a pipe, this rectangular form gasbag inflation, when the extrusion gasbag lasts leading-in air in to air guide hose, open in proper order along keeping away from the ascending pressure valve of the vertical central line of mount side, make the inflation of inflating in proper order of a plurality of rectangular form gasbags, thereby make the inflation back of a rectangular form gasbag adjacent with the slide bar, increase trapezoidal coral sponge and the extrusion force between trapezoidal design sponge and the demonstration mechanism outer wall, thereby improve trapezoidal coral sponge and trapezoidal design sponge to the cleaning quality of demonstration mechanism.
Preferably, an air passage is formed in the sliding rod, and spray holes are uniformly formed in the sliding rod; the air passage is communicated with the electromagnetic valve and the orifice; an included angle between the spray hole and the outer wall of the demonstration mechanism is 45 degrees; in the process that two slide bars are close to each other, the solenoid valve is opened, and the inside of the leading-in No. two air guide hoses of air in a plurality of rectangular form gasbag inner chambers through No. two pipes, then in the leading-in air flue that communicates with the solenoid valve of solenoid valve through opening, spout through the orifice slope again, jet-propelled to the surface of demonstration mechanism to the dust of demonstration mechanism surface adhesion in the use is cleared up, further improves demonstration mechanism's dust collection efficiency.
The invention has the following beneficial effects:
1. according to the invention, the auger is spirally connected with the thread module through forward rotation of the motor, so that the auger can be contracted, the extruded airbag is extruded, the strip-shaped airbag is replenished with air, two side edges of the demonstration mechanism are protected, personnel are prevented from colliding with the two side edges of the demonstration mechanism, the demonstration mechanism is prevented from being damaged, the safety factor is improved, when the motor rotates reversely, the auger is restored to the original state, the two sliding rods are contacted, the rubber sheet is driven to seal the demonstration mechanism again, and the probability of dust attached to the demonstration mechanism is effectively reduced; the screw pitch that the inboard spiral line of utilizing No. two internal thread covers is close to vertical central line one side of mount is little to make auger and slide bar be connected one end and move to the speed that is close to horizontal migration when the vertical central line position department of mount and reduce, thereby avoid two slide bars to produce the collision when the contact, make two slide bars steadily contact.
2. According to the invention, the trapezoidal coral sponge is positioned at the front side in the advancing direction, the trapezoidal coral sponge preliminarily cleans the surface of the demonstration mechanism and adsorbs dust into the holes at the inner side of the trapezoidal coral sponge, so that the phenomenon that hard dust with large particle size scratches the surface of the demonstration mechanism is avoided, the trapezoidal shaped sponge cleans the surface of the demonstration mechanism again, and the cleaning efficiency of the demonstration mechanism is effectively improved; when the sliding rod just starts to move, the air in the gap between the rubber sheet and the demonstration mechanism is discharged through the opened taper hole on the elastic sheet, the dust on the inner sides of the trapezoidal coral sponge and the trapezoidal shaping sponge is removed, the trapezoidal coral sponge and the trapezoidal shaping sponge are kept clean, and dust removal on the demonstration mechanism is facilitated.
3. According to the invention, the strip-shaped air bags are sequentially inflated and expanded, so that after the strip-shaped air bags are expanded, the extrusion forces between the trapezoidal coral sponge and the trapezoidal shaped sponge and the outer wall of the demonstration mechanism are increased, and the cleaning quality of the trapezoidal coral sponge and the trapezoidal shaped sponge on the demonstration mechanism is further improved; in the process that two slide bars are close to each other, spout the air in a plurality of rectangular form gasbag inner chambers through orifice slope, jet-propelled the surface of demonstration mechanism to clearing up the attached dust of demonstration mechanism surface in the use, further improving demonstration mechanism's dust collection efficiency.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic view of the protection module of the present invention in operation;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 4 is an enlarged partial schematic view at B of FIG. 1;
FIG. 5 is an enlarged partial schematic view at C of FIG. 1;
FIG. 6 is a schematic cross-sectional view of a rubber sheet and an elongated airbag of the present invention;
in the figure: the device comprises a fixed frame 1, a motor 11, a rotating disc 111, a containing groove 12, a sliding rod 2, an electromagnetic valve 21, an air passage 22, a spray hole 23, a protection module 3, a first air guide hose 31, a first guide pipe 311, a second air guide hose 32, a second guide pipe 321, a long-strip-shaped air bag 33, a rubber sheet 34, a demonstration mechanism 4, a thread module 5, a first internal thread sleeve 51, a second internal thread sleeve 52, an auger 6, an extrusion air bag 61, an air guide pipe 62, an elastic sheet 7, a tapered hole 71, a trapezoidal shaped sponge 8 and a trapezoidal coral sponge 9.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, a Matlab-based voice signal processing teaching demonstration platform includes a fixing frame 1, a protection module 3 and a demonstration mechanism 4; the demonstration device is characterized in that the middle of the fixed frame 1 is provided with a demonstration mechanism 4, the inner side of the fixed frame 1 is symmetrically provided with protection modules 3 at the front side of the demonstration mechanism 4, two motors 11 are arranged on the outer walls of the two ends of the top of the fixed frame 1 corresponding to the two protection modules 3, the inside of the top of the fixed frame 1 is provided with an accommodating groove 12, and the inner side of the accommodating groove 12 is provided with a thread module 5; the screw module 5 is internally provided with a packing auger 6; the output end of the motor 11 is in transmission connection with a rotating shaft, and one end of the rotating shaft penetrates through the outer wall of the fixed frame 1 and extends to the central position of one end of the inner side of the accommodating groove 12 to be fixedly connected with a rotating disc 111; one side of the rotating disc 111 is fixedly connected with one end of the packing auger 6; the other end of the packing auger 6 is rotatably connected with a sliding rod 2, the inner side of the packing auger 6 is fixedly connected with an extrusion air bag 61, a one-way valve is arranged on the extrusion air bag 61, and one end of the extrusion air bag 61 is communicated with an air guide pipe 62; the top end of the sliding rod 2 is connected with the top of the fixed frame 1 in a sliding manner, and the bottom end of the sliding rod 2 is connected with the bottom of the fixed frame 1 in a sliding manner; the thread module 5 is used for being in spiral connection with the packing auger 6; wherein,
the thread module 5 comprises two first internal thread sleeves 51 and two second internal thread sleeves 52; the two first internal thread sleeves 51 are fixedly connected with the inner walls of the two ends of the accommodating groove 12 respectively, and the adjacent ends of the two first internal thread sleeves 51 are fixedly connected with the second internal thread sleeve 52; the second internal thread sleeve 52 is fixedly connected with the inner wall of the accommodating groove 12;
the protection module 3 comprises a long-strip-shaped air bag 33 and a rubber sheet 34; a plurality of strip-shaped air bags 33 which are parallel to each other in the vertical direction are arranged on the inner side of the rubber sheet 34, the top ends and the bottom ends of the strip-shaped air bags 33 are respectively communicated with a first guide pipe 311 and a second guide pipe 321, the inner sides of the tops and the bottoms of the rubber sheets 34 are respectively provided with a first air guide hose 31 and a second air guide hose 32, one side of the rubber sheet 34 is fixedly connected with the sliding rod 2, and the other side of the rubber sheet 34 is fixedly connected with the outer wall of the fixed frame 1; the first guide pipe 311 is communicated with the first air guide hose 31; the second conduit 321 is communicated with the second air guide hose 32; one end of the second air guide hose 32 is communicated with the electromagnetic valve 21 fixedly arranged at the bottom of the sliding rod 2; the electromagnetic valve 21 is used for discharging air in the long-strip-shaped air bag 33; one end of the air duct 62 passes through the inner wall of the sliding rod 2 and is communicated with the first air duct hose 31; the controller can be arranged on the fixed frame 1, the controller is electrically connected with the motors 11 and the electromagnetic valve 21, when the demonstration mechanism 4 is required to be used, the two motors 11 of the controller are used for driving the rotating shaft to rotate in a forward transmission mode, the rotating shaft drives the rotating disc 111 to rotate when rotating, the rotating disc 111 drives the packing auger 6 to rotate, the packing auger 6 is contacted with the spiral threads when rotating at the inner sides of the first internal thread sleeve 51 and the second internal thread sleeve 52, so that the packing auger 6 is contracted when rotating, the sliding rod 2 is driven to move towards the direction far away from the vertical central line of the fixed frame 1, the rubber sheet 34 is pushed to bend when the sliding rod 2 moves, at the moment, the demonstration mechanism 4 is exposed for use, when the demonstration mechanism 4 is completely exposed, the motors 11 are closed, when the packing auger 6 is contracted, air in the inner cavity of the extrusion air bag 61 is guided into the first air guide hose 31 through, the long strip-shaped air bag 33 is inflated and expanded to protect two side edges of the demonstration mechanism 4, so that personnel are prevented from colliding with the two side edges of the demonstration mechanism 4, the demonstration mechanism 4 is prevented from being damaged, the safety factor is improved, after the demonstration mechanism 4 is used, the motor 11 is controlled to rotate reversely by the controller, at the moment, the packing auger 6 rotates reversely and rotates along spiral threads on the inner sides of the first internal thread sleeve 51 and the second internal thread sleeve 52, so that the packing auger 6 extends to extrude the air bag 61 to suck air through the one-way valve, the packing auger 6 pushes the sliding rod 2 to move towards the direction close to the vertical central line of the fixing frame 1, meanwhile, the controller controls the electromagnetic valve 21 to be opened, the air in the long strip-shaped air bag 33 is discharged sequentially through the second guide pipe 321, the second air guide hose 32 and the electromagnetic valve 21, the long strip-shaped air bag 33 is recovered, after the two sliding rods, after two slide bar 2 contact, the sheet rubber 34 seals demonstration mechanism 4 again, has effectively reduced the probability that the dust adheres to on demonstration mechanism 4, avoids the dust to get into the inside of demonstration mechanism 4 and leads to the part short circuit, has prolonged demonstration mechanism 4's life, and it is convenient to use.
The pitch of the inner helical thread of the first internal thread sleeve 51 is smaller than that of the inner helical thread of the second internal thread sleeve 52; the screw pitches of the screw threads on the inner wall of the second internal thread sleeve 52 are sequentially increased along the direction far away from the vertical central line of the fixed frame 1; after demonstration mechanism 4 finishes using, rolling disc 111 drives auger 6 and rotates, auger 6 moves along the inboard spiral line of No. two internal thread cover 52 with the one end of being connected of slide bar 2, the inboard spiral line of No. two internal thread cover 52 is close to the pitch of the 1 vertical central line one side of mount little, thereby make auger 6 and slide bar 2 be connected one end and move to the speed that is close to the 1 vertical central line position department of mount when horizontal migration reduces, thereby avoid two slide bar 2 to produce the collision when the contact, make two slide bar 2 stationary contact, prolong the life of slide bar 2.
The outer wall of the strip-shaped air bag 33 positioned at the inner side of the fixed frame 1 is fixedly connected with a trapezoidal coral sponge 9 and a trapezoidal shaped sponge 8; the short side edge of the trapezoidal coral sponge 9 is contacted with the short side edge of the trapezoidal shaped sponge 8, and the trapezoidal coral sponge 9 is arranged at the position far away from the vertical central line of the fixing frame 1; the trapezoidal shaped sponge 8 is arranged at a position close to the vertical center line of the fixing frame 1; when two slide bar 2 kept away from each other, use the direction of motion as the benchmark, trapezoidal coral sponge 9 is located the front side of direction of advance, and trapezoidal coral sponge 9 carries out preliminary clearance to demonstration mechanism 4's surface, and adsorb the dust to the inboard hole of trapezoidal coral sponge 9 in, avoid the surface of the hard dust fish tail demonstration mechanism 4 of big particle diameter, trapezoidal design sponge 8 clears up demonstration mechanism 4's surface once more, effectively improves demonstration mechanism 4's cleaning efficiency.
The outer wall of the long strip-shaped air bag 33 is fixedly connected with an elastic sheet 7 at the position corresponding to the trapezoidal shaped sponge 8; one side of the elastic sheet 7 is in contact with the demonstration mechanism 4, the side of the elastic sheet 7 is fixedly connected with the long side of the trapezoidal shaped sponge 8, the bottom of the elastic sheet 7 is provided with a tapered hole 71, and the large end of the tapered hole 71 faces the vertical central line of the fixing frame 1; frictional force has between a side of flexure strip 7 and demonstration mechanism 4's surface, thereby make flexure strip 7 to the direction slope of being close to the vertical central line of mount 1, at this moment, the tip of flexure strip 7 bottom bell mouth 71 opens, when slide bar 2 just begins to move, the air part in the gap between rubber sheet 34 and demonstration mechanism 4 is discharged through bell mouth 71, thereby make trapezoidal coral sponge 9 and the inboard dust part of trapezoidal design sponge 8 detach, it is clean to keep trapezoidal coral sponge 9 and trapezoidal design sponge 8, be favorable to removing dust to demonstration mechanism 4 once more.
A pressure valve is embedded and connected at the connecting position of the long-strip-shaped air bag 33 and the first guide pipe 311; the number of the pressure valves is multiple, and the rated values of the pressure valves are sequentially increased along the direction far away from the vertical center line of the fixing frame 1; when the extrusion air bag 61 is extruded, air in the inner cavity of the extrusion air bag is led into the first air guide hose 31, the pressure inside the first air guide hose 31 is increased, when the pressure value in the first air guide hose 31 is larger than the rated value of a pressure valve between one long-strip-shaped air bag 33 adjacent to the sliding rod 2 and the first guide pipe 311, the long-strip-shaped air bag 33 is inflated and expanded, when the extrusion air bag 61 continuously leads air into the first air guide hose 31, the pressure valves in the direction of the vertical central line far away from the fixed frame 1 are sequentially opened, so that the long-strip-shaped air bags 33 are sequentially inflated and expanded, the extrusion forces between the trapezoidal coral sponge 9 and the trapezoidal shaping sponge 8 and the outer wall of the demonstration mechanism 4 are increased after one long-strip-shaped air bag 33 adjacent to the sliding rod 2 is expanded, and therefore the cleaning quality of the trapezoidal coral sponge 9 and the.
An air flue 22 is formed in the sliding rod 2, and spray holes 23 are uniformly formed in the sliding rod 2; the air passage 22 is communicated with the electromagnetic valve 21, and the air passage 22 is communicated with the spray holes 23; the included angle between the spray hole 23 and the outer wall of the demonstration mechanism 4 is 45 degrees; in the process that the two sliding rods 2 approach each other, the electromagnetic valve 21 is opened, air in the inner cavities of the strip-shaped air bags 33 is guided into the second air guide hose 32 through the second guide pipe 321, then guided into the air passage 22 communicated with the electromagnetic valve 21 through the opened electromagnetic valve 21, and obliquely sprayed out through the spray holes 23 to spray air on the surface of the demonstration mechanism 4, so that dust attached to the surface of the demonstration mechanism 4 in the using process is cleaned, and the dust removal efficiency of the demonstration mechanism 4 is further improved.
When the demonstration mechanism 4 is needed to be used, the rotating shaft is driven to rotate by positive transmission of the two motors 11 of the controller, the rotating shaft drives the rotating disc 111 to rotate when rotating, the rotating disc 111 drives the packing auger 6 to rotate, the packing auger 6 is contacted with the spiral threads when rotating on the inner sides of the first internal thread sleeve 51 and the second internal thread sleeve 52, so that the packing auger 6 contracts when rotating, the sliding rod 2 is driven to move in a direction away from the vertical central line of the fixing frame 1, the rubber sheet 34 is pushed to bend when the sliding rod 2 moves, at the moment, the demonstration mechanism 4 is exposed for use, when the demonstration mechanism 4 is completely exposed, the motors 11 are closed, when the packing auger 6 contracts, air in the inner cavity of the extrusion air bag 61 is guided into the first air guide hose 31 through the air guide pipe 62 and then guided into the inner part of the long strip-shaped air bag 33 through the first guide pipe 311, the long strip-shaped air bag 33 is inflated and expanded to protect two side edges of the demonstration mechanism 4, so that personnel are prevented from colliding with the two side edges of the demonstration mechanism 4, the demonstration mechanism 4 is prevented from being damaged, the safety factor is improved, after the demonstration mechanism 4 is used, the motor 11 is controlled to rotate reversely by the controller, at the moment, the packing auger 6 rotates reversely and rotates along spiral threads on the inner sides of the first internal thread sleeve 51 and the second internal thread sleeve 52, so that the packing auger 6 extends to extrude the air bag 61 to suck air through the one-way valve, the packing auger 6 pushes the sliding rod 2 to move towards the direction close to the vertical central line of the fixing frame 1, meanwhile, the controller controls the electromagnetic valve 21 to be opened, the air in the long strip-shaped air bag 33 is discharged sequentially through the second guide pipe 321, the second air guide hose 32 and the electromagnetic valve 21, the long strip-shaped air bag 33 is recovered, after the two sliding rods, after two slide bar 2 contact, the sheet rubber 34 seals demonstration mechanism 4 again, has effectively reduced the probability that the dust adheres to on demonstration mechanism 4, avoids the dust to get into the inside of demonstration mechanism 4 and leads to the part short circuit, has prolonged demonstration mechanism 4's life, and it is convenient to use.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a speech signal processing teaching demonstration platform based on Matlab which characterized in that: comprises a fixed frame (1), a protection module (3) and a demonstration mechanism (4); the demonstration device is characterized in that a demonstration mechanism (4) is mounted in the middle of the fixed frame (1), protection modules (3) are symmetrically arranged on the inner side of the fixed frame (1) and positioned in front of the demonstration mechanism (4), two motors (11) are mounted on the outer walls of the two ends of the top of the fixed frame (1) and correspond to the two protection modules (3), a containing groove (12) is formed in the top of the fixed frame (1), and a thread module (5) is arranged on the inner side of the containing groove (12); a packing auger (6) is arranged inside the thread module (5); the output end of the motor (11) is in transmission connection with a rotating shaft, and one end of the rotating shaft penetrates through the outer wall of the fixing frame (1) and extends to the center of one end of the inner side of the accommodating groove (12) to be fixedly connected with a rotating disc (111); one side of the rotating disc (111) is fixedly connected with one end of the packing auger (6); the other end of the packing auger (6) is rotatably connected with a sliding rod (2), the inner side of the packing auger (6) is fixedly connected with an extrusion air bag (61), a one-way valve is arranged on the extrusion air bag (61), and one end of the extrusion air bag (61) is communicated with an air guide pipe (62); the top end of the sliding rod (2) is connected with the top of the fixed frame (1) in a sliding manner, and the bottom end of the sliding rod (2) is connected with the bottom of the fixed frame (1) in a sliding manner; the thread module (5) is used for being in threaded connection with the packing auger (6); wherein,
the thread module (5) comprises two first internal thread sleeves (51) and two second internal thread sleeves (52); the two first internal thread sleeves (51) are fixedly connected with the inner walls of the two ends of the accommodating groove (12) respectively, and the adjacent ends of the two first internal thread sleeves (51) are fixedly connected with the second internal thread sleeve (52); the second internal thread sleeve (52) is fixedly connected with the inner wall of the accommodating groove (12);
the protection module (3) comprises a long-strip-shaped air bag (33) and a rubber sheet (34); the inner side of the rubber sheet (34) is provided with a plurality of strip-shaped air bags (33) which are parallel to each other in the vertical direction, the top ends and the bottom ends of the strip-shaped air bags (33) are respectively communicated with a first guide pipe (311) and a second guide pipe (321), the inner sides of the top and the bottom of the rubber sheet (34) are respectively provided with a first air guide hose (31) and a second air guide hose (32), one side of the rubber sheet (34) is fixedly connected with the sliding rod (2), and the other side of the rubber sheet (34) is fixedly connected with the outer wall of the fixed frame (1; the first guide pipe (311) is communicated with the first air guide hose (31); the second conduit (321) is communicated with the second air guide hose (32); one end of the second air guide hose (32) is communicated with an electromagnetic valve (21) fixedly arranged at the bottom of the sliding rod (2); the electromagnetic valve (21) is used for discharging air in the long-strip-shaped air bag (33); one end of the air duct (62) passes through the inner wall of the sliding rod (2) and is communicated with the first air duct hose (31).
2. The Matlab-based speech signal processing teaching presentation platform of claim 1, wherein: the pitch of the inner helical thread of the first internal thread sleeve (51) is smaller than that of the inner helical thread of the second internal thread sleeve (52); the screw thread on the inner wall of the second internal thread sleeve (52) increases in turn along the screw pitch in the direction far away from the vertical central line of the fixed frame (1).
3. The Matlab-based speech signal processing teaching presentation platform of claim 1, wherein: the outer wall of the strip-shaped air bag (33) positioned at the inner side of the fixed frame (1) is fixedly connected with a trapezoidal coral sponge (9) and a trapezoidal shaped sponge (8); the short side edge of the trapezoidal coral sponge (9) is in contact with the short side edge of the trapezoidal shaped sponge (8), and the trapezoidal coral sponge (9) is arranged at a position far away from the vertical central line of the fixing frame (1); the trapezoidal shaping sponge (8) is arranged at a position close to the vertical center line of the fixing frame (1).
4. The Matlab-based speech signal processing teaching presentation platform of claim 3, wherein: the outer wall of the long strip-shaped air bag (33) is fixedly connected with an elastic sheet (7) at a position corresponding to the trapezoidal shaped sponge (8); one side edge of the elastic sheet (7) is in contact with the demonstration mechanism (4), the side face of the elastic sheet (7) is fixedly connected with the long side edge of the trapezoidal shaping sponge (8), a tapered hole (71) is formed in the bottom of the elastic sheet (7), and the large end of the tapered hole (71) faces the vertical central line of the fixing frame (1).
5. The Matlab-based speech signal processing teaching presentation platform of claim 4, wherein: a pressure valve is embedded and connected at the connecting position of the long-strip-shaped air bag (33) and the first catheter (311); the pressure valves are provided in a plurality of numbers, and the rated values of the pressure valves are sequentially increased along the direction far away from the vertical center line of the fixing frame (1).
6. The Matlab-based speech signal processing teaching presentation platform of claim 1, wherein: an air flue (22) is formed in the sliding rod (2), and spray holes (23) are uniformly formed in the sliding rod (2); the air passage (22) is communicated with the electromagnetic valve (21), and the air passage (22) is communicated with the spray holes (23); and an included angle between the spray hole (23) and the outer wall of the demonstration mechanism (4) is 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910635100.4A CN110459095A (en) | 2019-07-15 | 2019-07-15 | A kind of Speech processing teaching platform based on Matlab |
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| CN201910635100.4A CN110459095A (en) | 2019-07-15 | 2019-07-15 | A kind of Speech processing teaching platform based on Matlab |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111105674A (en) * | 2019-12-19 | 2020-05-05 | 哈尔滨学院 | Colleges and universities ideological and political education display system |
| CN114999260A (en) * | 2022-06-29 | 2022-09-02 | 北京智扬北方国际教育科技有限公司 | Simulation training device for excavator |
| CN117300091A (en) * | 2023-11-28 | 2023-12-29 | 秦皇岛科泰工业有限公司 | Cold core casting process |
-
2019
- 2019-07-15 CN CN201910635100.4A patent/CN110459095A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111105674A (en) * | 2019-12-19 | 2020-05-05 | 哈尔滨学院 | Colleges and universities ideological and political education display system |
| CN111105674B (en) * | 2019-12-19 | 2021-07-20 | 哈尔滨学院 | Colleges and universities ideological and political education display system |
| CN114999260A (en) * | 2022-06-29 | 2022-09-02 | 北京智扬北方国际教育科技有限公司 | Simulation training device for excavator |
| CN114999260B (en) * | 2022-06-29 | 2023-09-22 | 北京智扬北方国际教育科技有限公司 | Simulation training device for excavator |
| CN117300091A (en) * | 2023-11-28 | 2023-12-29 | 秦皇岛科泰工业有限公司 | Cold core casting process |
| CN117300091B (en) * | 2023-11-28 | 2024-01-30 | 秦皇岛科泰工业有限公司 | Cold core casting process |
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Application publication date: 20191115 |