Disclosure of Invention
In view of the above, it is an object of the present invention to provide a quick drying rake dryer which has the advantages of less wear on the ends of the tines and a longer replacement cycle.
In order to solve the technical problems, the technical scheme of the invention is as follows: a quick-drying rake dryer comprises a dryer shell, a cylindrical shell arranged in the dryer shell, a main shaft rotationally connected in the cylindrical shell, and rake teeth arranged on the side wall of the main shaft, wherein the rake teeth comprise a sleeve arranged on the side wall of the main shaft, a sliding rod connected in the sleeve in a sliding mode, and a material turning plate arranged at the end part of the sliding rod.
Through the technical scheme, when the main shaft rotates in the circumferential direction, the material turning plate and the sliding rod do centrifugal motion. When the material turning plate is in contact with the inner wall of the shell ring, the end part of the sliding rod departing from the material turning plate is still contained in the sleeve, and at the moment, the material turning plate can turn over the material in the shell ring and scrape the material attached to the inner wall of the shell ring. The material turning plate slides and is connected with the sleeve through the sliding rod, so that when the rotating speed of the main shaft is lower, the material turning plate cannot always touch the inner wall of the shell ring, abrasion is reduced, the service life of the material turning plate is prolonged, and the replacement period is prolonged. When the sliding rod rotates to the inclined downward state, the sliding rod and the material turning plate move towards the inner side of the sleeve, and when the sliding rod rotates to the inclined upward state, the sliding rod and the material turning plate move towards the outer side of the sleeve.
Preferably, an annular mounting groove is formed in an inner hole of the sleeve, the annular mounting groove is located on one side, far away from the main shaft, of the sleeve, a tetrafluoro sealing ring is arranged in the annular mounting groove, and an inner ring of the tetrafluoro sealing ring abuts against the outer wall of the sliding rod.
Through above-mentioned technical scheme, the tetrafluoro sealing washer is used for sealing the clearance between sleeve and the slide bar for the material is difficult for entering into inside the sleeve via this clearance.
Preferably, the sleeve is internally provided with an air hole, the two ends of the air hole are respectively provided with a first connecting port and a second connecting port, the first connecting port penetrates through the end part of the sleeve, which is far away from the main shaft, the first connecting port is provided with a filter screen, and the second connecting port penetrates through the sleeve, which is close to the inner hole wall of the main shaft.
Through above-mentioned technical scheme, when the slide bar slided to the sleeve is inside, the inside air of sleeve entered into the gas pocket via the second connector, and the air in the gas pocket is discharged via first connector. When the sliding rod slides towards the outside of the sleeve, air in the cylinder section enters the air hole through the first connecting hole, and air in the air hole enters the inside of the sleeve through the second connecting hole. The inner cavity of the sleeve is communicated with the inner cavity of the cylinder section through the air hole, so that the sliding of the sliding rod is not easily hindered by air in the sleeve in the sliding process of the sliding rod in the sleeve. The filter screen is arranged at the first connecting port, so that materials in the cylinder section are not easy to enter the air holes.
Preferably, the slide bar stretches into be provided with tetrafluoro movable plug on the telescopic tip, the outer wall of tetrafluoro movable plug with telescopic inner wall is contradicted.
Through above-mentioned technical scheme, set up tetrafluoro movable plug on the telescopic tip is stretched into to the slide bar for promote the gas tightness, so when the slide bar slides in sleeve inside, can more effectively drive the air and flow in the gas pocket.
Preferably, an air tap is hinged to the end part, far away from the main shaft, of the sleeve, and the air tap is communicated with the first connecting port; a placing groove is formed in the side wall of the sliding rod; still including being used for driving air cock wobbling swing mechanism, swing mechanism includes cable and reset spring, the one end of cable with the air cock is connected, the other end of cable with the standing groove is close to in the inner wall of main shaft is connected, reset spring's one end with the air cock is connected, reset spring's the other end with the sleeve is connected.
Through above-mentioned technical scheme, when the slide bar slides to the sleeve is inside, the slide bar passes through cable drive air cock and rotates to slide bar one side, so strike on the material turning plate via air cock exhaust air for with the material attached on the material turning plate and dash and fall. When the sliding rod slides towards the outside of the sleeve, the reset spring drives the air nozzle to rotate towards one side far away from the sliding rod. The stay cable and the return spring act together, so that the air nozzle always points to one side of the material turning plate.
Preferably, two groups of scraping components are symmetrically distributed on two sides of the main shaft and are matched with each other to scrape materials attached to the inner wall of the shell ring; each group of scraping assemblies comprises a plurality of scraping plates, and the scraping plates in the two groups of scraping assemblies are staggered left and right.
Through above-mentioned technical scheme, can drive when the main shaft rotates and strike off the board and carry out circumferential direction for will be attached to the material on the shell ring inner wall and scrape down, reduce the waste of material, but also the heat conductivity of recoverable shell ring promotes the recovery efficiency of material. The scraping plates in the two groups of scraping assemblies are arranged in a staggered mode from left to right, so that the inner wall of the shell ring can be effectively cleaned when the main shaft rotates, and viscous materials are not easily attached to the inner wall of the shell ring.
Preferably, the scraping plate comprises a mounting support and a scraper body, a groove is formed in one side, deviating from the main shaft, of the mounting support, the scraper body is arranged in the groove, one side of the scraper body protrudes out of a notch of the groove, a limiting protrusion is arranged at the inner groove wall of the groove, a limiting groove is formed in the side wall of the scraper body, and the limiting protrusion is connected in the limiting groove in a sliding manner.
Through the technical scheme, when the rotating speed of the main shaft is high, the scraper body does centrifugal motion and is always abutted against the inner wall of the shell ring. When the main shaft rotates slowly, if the scraper body rotates to an inclined downward state, the scraper body slides to the outside of the groove and contacts the inner wall of the shell ring so as to scrape materials attached to the inner wall of the shell ring; if the scraper body rotates to an inclined upward state, the scraper body is separated from the inner wall of the cylinder section, so that the abrasion of the scraper body is reduced, and the service life of the scraper body is prolonged.
Preferably, the mounting bracket is close to the tip of main shaft has seted up the hole of sliding, the hole of sliding communicate in the recess, the hole inside thimble that slides is provided with, be provided with the driving piece on the rake teeth, the driving piece is used for pushing the thimble into in the recess, the thimble with be provided with return spring between the mounting bracket.
Through above-mentioned technical scheme, when the scraper blade body can't be in the assigned position and shell ring inner wall contact because of wearing and tearing, push the thimble into the recess through the driving piece, the thimble can jack-up and support the scraper blade body for the scraper blade body can be at the inner wall of assigned position contact shell ring. Set up return spring between thimble and installation, return spring can push the thimble out of recess, so the thimble is difficult for initiatively entering the recess and support the scraper blade body.
Preferably, a flange is arranged at the end part of the thimble close to the main shaft, the return spring is sleeved on the thimble, one end of the return spring is connected to the flange, and the other end of the return spring is connected to the mounting bracket.
Through above-mentioned technical scheme, return spring is used for driving about the thimble through the turn-ups and removes to the recess outside.
Preferably, the driving member includes an eccentric shaft pull rod and an adjusting bolt, the eccentric shaft pull rod is parallel to the main shaft, the eccentric shaft pull rod is connected to the rake teeth in a sliding manner, a pushing inclined plane is arranged on the eccentric shaft pull rod, the end portion of the thimble close to the main shaft abuts against the pushing inclined plane, the adjusting bolt is rotatably connected to the rake teeth, and the adjusting bolt is in threaded connection with the eccentric shaft pull rod.
Through the technical scheme, when the adjusting bolt is rotated in the circumferential direction, the adjusting bolt drives the eccentric shaft pull rod to transversely slide through the threads, and when the eccentric shaft pull rod moves, the jacking inclined plane is matched with the return spring to drive the ejector pin to slide in the sliding hole.
Detailed Description
The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.
A quick-drying rake dryer is shown in figure 1 and comprises a dryer shell 1, a cylinder section 2 arranged in the dryer shell 1, a main shaft 3 rotatably connected in the cylinder section 2 and rake teeth 4 arranged on the side wall of the main shaft 3.
The dryer shell 1 is provided with a heat-conducting medium inlet, and when the dryer is used, the heat-conducting medium is injected into the dryer shell 1 through the heat-conducting medium inlet so as to heat the shell section 2. The dryer shell 1 is also provided with a heat-conducting medium outlet, and the cooled heat-conducting medium is discharged through the heat-conducting medium outlet when the dryer is used. When the heat-conducting medium is heat-conducting water or heat-conducting oil, the heat-conducting medium input port is positioned below the cylindrical shell 2, and the heat-conducting medium output port is positioned above the cylindrical shell 2. When the heat-conducting medium is steam, the heat-conducting medium input port is positioned above the shell ring 2, and the heat-conducting medium output port is positioned below the shell ring 2.
Openings 26 have all been seted up at the both ends of shell ring 2, and the equal threaded connection in each opening 26 has apron 27, only needs to take off apron 27 from shell ring 2 and can this harrow formula desicator of quick assembly disassembly. Each cover plate 27 is provided with a manhole 28, and a connecting line between the two manhole 28 is parallel to the main shaft 3. The end of the manhole 28 extending into the shell ring 2 is flush with the inner wall of the shell ring 2, so that material accumulation is reduced. Each manhole 28 is provided with a transparent sight glass 29, and the state of the material inside the shell 2 can be observed through the transparent sight glass 29 during use. The top of the shell ring 2 is provided with an air exhaust opening which is connected with a vacuum pump. When the vacuum pump works, air in the shell ring 2 can be pumped out, so that the interior of the shell ring 2 is in a vacuum state. The bottom of shell ring 2 is provided with the discharge gate, can discharge the inside dry material of accomplishing of shell ring 2 through the discharge gate during the use.
As shown in fig. 1 and 2, a plurality of scraping plates 15 are disposed on the side wall of the main shaft 3, the scraping plates 15 are equally divided into two groups of scraping assemblies, and the two groups of scraping assemblies are symmetrically distributed with the main shaft 3 as the center. The scraping plates 15 in the two groups of scraping assemblies are staggered left and right, so that the viscous materials attached to the inner wall of the shell section 2 can be effectively scraped. Scraping plates 15 in each group of scraping assemblies are distributed at equal intervals along the axial direction of the main shaft 3, the scraping plates 15 are fixed at the tops of two adjacent rake teeth 4, and the scraping plates 15 abut against the inner wall of the cylinder section 2 and are used for scraping off viscous materials attached to the inner wall of the cylinder section 2.
As shown in fig. 1, 2, and 3, the scraping plate 15 includes a mounting bracket 151 and a scraper body 152. The mounting bracket 151 is fixed at the top of the rake teeth 4, a groove 16 is formed in one side, away from the main shaft 3, of the mounting bracket 151, a limiting protrusion 17 is arranged at the inner groove wall of the groove 16, and the limiting protrusion 17 and the mounting bracket 151 are integrally formed. The scraper blade body 152 sets up in recess 16, and the scraper blade body 152 keeps away from one side of main shaft 3 and protrudes from the notch department of recess 16, and spacing groove 18 has been seted up to the lateral wall department of scraper blade body 152, and spacing arch 17 stretches into in spacing groove 18 and slides with spacing groove 18 and links to each other. The squeegee body 152 is made of tetrafluoro material.
The end part of the mounting bracket 151 close to the spindle 3 is provided with a sliding hole 19, and the sliding hole 19 is communicated with the groove 16. An ejector pin 20 is arranged in the sliding hole 19, and the ejector pin 20 can slide along the axial direction of the sliding hole 19. The end of the thimble 20 close to the main shaft 3 is provided with a flange 23, and the flange 23 protrudes out of the side wall of the thimble 20. The thimble 20 is sleeved with a return spring 22, one end of the return spring 22 is connected to the flange 23, and the other end of the return spring 22 is connected to the mounting bracket 151. The rake teeth 4 are provided with a drive 21, the drive 21 being arranged to drive the thimble 20 into the recess 16. The driver 21 comprises an eccentric shaft tie rod 211 and an adjusting bolt 212. Eccentric shaft pull rod 211 is connected on rake teeth 4 in a sliding mode and is parallel to main shaft 3, a pushing inclined plane 24 is arranged on the side wall of eccentric shaft pull rod 211 facing to ejector pin 20, and the end portion of ejector pin 20 close to main shaft 3 abuts against pushing inclined plane 24. An adjusting bolt 212 is rotatably coupled to the rake teeth 4, and the adjusting bolt 212 is screw-coupled to the eccentric shaft link 211. Rotation of adjusting bolt 212 drives eccentric shaft pull rod 211 to slide axially, and eccentric shaft pull rod 211 pushes up pin 20 via pushing up slope 24 to adjust the distance that scraper body 152 can extend into recess 16.
As shown in fig. 1 and 4, the side wall of the rake teeth 4 is provided with a tooth 25, and the height of the tooth 25 gradually decreases toward the side away from the rake teeth 4. When the rake teeth 4 rotate along with the main shaft 3, materials in the barrel section 2 can be shoveled and turned over through the shovel teeth 25, so that the materials in the barrel section 2 are not easy to block.
As shown in fig. 1 and 5, the rake teeth 4 include a sleeve 41 disposed on the side wall of the main shaft 3, a slide rod 42 slidably connected inside the sleeve 41, and a material turning plate 43 disposed at an end of the slide rod 42.
An annular mounting groove 5 is formed in the inner hole of the sleeve 41, the annular mounting groove 5 is located on one side, away from the main shaft 3, of the sleeve 41, and the annular mounting groove 5 and the sleeve 41 are coaxially arranged. Be provided with tetrafluoro sealing washer 6 in the annular mounting groove 5, the inner circle protrusion in the notch of annular mounting groove 5 of tetrafluoro sealing washer 6, and the inner circle of tetrafluoro sealing washer 6 offsets tightly with the outer wall of slide bar 42. The tetrafluoro seal ring 6 seals a gap between the sleeve 41 and the slide rod 42, so that the material in the shell ring 2 is not easily introduced into the sleeve 41.
The sleeve 41 is provided with an air hole 7 in a bent manner, and two ends of the air hole 7 are respectively provided with a first connecting port 71 and a second connecting port 72. The first connecting port 71 penetrates through the end part of the sleeve 41 far away from the main shaft 3, a filter screen 8 is arranged at the first connecting port 71, and the filter screen 8 is used for preventing materials inside the shell ring 2 from entering the air hole 7. The second connecting port 72 penetrates through the inner hole wall of the sleeve 41 close to the main shaft 3, and the inner hole of the sleeve 41 is communicated with the inner cavity of the shell ring 2 through the air hole 7. The end part of the sliding rod 42 extending into the sleeve 41 is provided with a tetrafluoro movable rubber plug 9, and the outer wall of the tetrafluoro movable rubber plug 9 is abutted against the inner wall of the sleeve 41. When the sliding rod 42 slides towards the inside of the sleeve 41, the tetrafluoro movable rubber plug 9 presses the air inside the sleeve 41, so that the air inside the sleeve 41 is discharged into the shell ring 2 through the air hole 7. When the sliding rod 42 slides to the outside of the sleeve 41, negative pressure is formed inside the sleeve 41, and air in the shell 2 is supplied to the sleeve 41 through the air hole 7.
The end part of the sleeve 41 far away from the main shaft 3 is hinged with an air nozzle 10, the air nozzle 10 is communicated with the first connecting port 71, and the inner diameter of the air nozzle 10 is gradually reduced towards the side far away from the sleeve 41. The side wall of the sliding rod 42 is provided with a placing groove 11, and the placing groove 11 is arranged along the axial direction of the sliding rod 42. Swing mechanism 12 for driving air faucet 10 to swing is disposed between slide bar 42 and air faucet 10. Swing mechanism 12 includes cable 121 and reset spring 122, and the one end of cable 121 is connected with air cock 10, and the other end of cable 121 is connected with the inner wall that standing groove 11 is close to in main shaft 3, and reset spring 122's one end is connected with air cock 10, and reset spring 122's the other end is connected with sleeve 41. When the sliding rod 42 slides towards the inside of the sleeve 41, the sliding rod 42 drives the air nozzle 10 to rotate towards one side of the sliding rod 42 through the pulling cable 121, so that the air ejected from the air nozzle 10 impacts on the material turning plate 43 to wash off the material attached to the material turning plate 43. When the sliding rod 42 slides to the outside of the sleeve 41, the return spring 122 drives the air faucet 10 to rotate to the side away from the sliding rod 42, so that the air faucet 10 always points to the material turning plate 43 side.
The lateral wall department of slide bar 42 has seted up constant head tank 13, and constant head tank 13 sets up along slide bar 42's axial, and the lateral wall department threaded connection of sleeve 41 has adjusting screw 14, and adjusting screw 14's tip stretches into constant head tank 13 and links to each other with constant head tank 13 slides.
The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.