High efficiency planetary rotor sand mixer

Abstract

The invention relates to a high-efficiency planetary rotor sand mixer, which comprises a frame assembly, a sand mixing component arranged on the frame assembly, a drawer-type unloading door device arranged at the bottom of the sand mixing component, a sampler arranged on the frame assembly, a protective cover arranged on the frame assembly, a rectangular butterfly valve arranged on the top of the frame assembly as a feed, a water supply pipeline and a lubrication pipeline arranged on the frame assembly, and a transport support arranged at the bottom of the frame assembly; the invention has reasonable design, compact structure and is easy to use.

Description

Technical Field

[0001] The invention relates to a high-efficiency planetary rotor sand mixer. Background Art

[0002] At present, sand mixers are widely used in the foundry industry as equipment for mixing molding sand. Sand mixers are equipment that evenly mix the components in the molding sand and effectively coat the surface of the sand particles with the binder. Sand mixers use the relative movement of the roller and the plate to crush the materials placed between the two by rolling and grinding. Sand mixers mix materials while crushing them. It is an ideal equipment for producing unburned bricks, lime sand bricks, cement bricks, refractory bricks, crushing and mixing fly ash, boiler slag, tailings slag and industrial waste slag as raw materials for brick making. The bottom plate and outer ring of the plate of the sand mixer are equipped with anti-wear guard plates to improve the effect of rolling and grinding materials and the service life of the whole machine. The height of the roller on the plate can be automatically adjusted. When encountering materials that are difficult to crush and too thick a layer of material, the roller automatically rises to ensure safety. Uses: Mixing core sand in foundry workshops, etc., can be used for mixing granular or powdered materials in glass, ceramics, chemicals, building materials, molds and other industries. Used to mix resin self-hardening sand. This type of sand mixer uses rotary blades. When mixing sand, dry sand enters two mixing troughs, the binder is added to one of the mixing troughs, and the hardener is added to the other mixing trough for premixing with the original sand. Then, it enters the vertical agitator from the end outlet of the mixing trough, and is quickly mixed and discharged to fill the sand box or core box. After filling, the hardener and binder passages are automatically cut off immediately, and the sand inlet gate is closed at the same time to remove the residual molding sand in the trough.

[0003] When mixing molding sand with a traditional sand mixer, the molding sand often accumulates on the inner wall of the sand mixer casing and sticks to the mixer casing. When unloading the sand, the mixed molding sand cannot be completely unloaded, resulting in waste. It also causes uneven mixing of the molding sand and fails to meet the required standards for molding sand mixing, thus affecting the quality of the molding sand and failing to meet the needs of casting production.

[0004] The existing sand mixer has a simple transmission structure, a complex assembly process, and is inconvenient to disassemble and assemble. In the traditional rotor shaft assembly, when the oil temperature rises, the bearing shaft begins to expand, the original motor is overpowered or the bearing is burned out, and there is no room for expansion in the designed shaft.

[0005] The sand mixing rotor shaft is used for sand mixing and stirring; the sand mixing rotor plays a major role in the mixing of the molding sand. During operation, the rotor blades give the molding sand a strong impact force. The existing sand mixing rotor shaft has a simple structure and only plays a stirring role, causing sand to fly in the box, poor stirring effect, inconvenient disassembly and replacement, uneven stirring, time-consuming and labor-intensive. The traditional drawer-type unloading door has the following problems: sand inclusion, sand leakage, easy wear of the guide roller, frequent opening and closing of the unloading door, reciprocating motion, and a certain gap between its two sides and the chassis, so sand leakage occurs, affecting the quality of the casting; the unloading door is closed for sand inclusion. Although there are anti-sand inclusion measures, such as setting steps and inclined surfaces, the general materials used are not wear-resistant, and the door frame plate is appropriately thickened, resulting in the unloading door not closing tightly for sand inclusion and sand leakage; due to the working environment and structural form, sand and dust are piled on the guide rail, which is very easy to wear. Summary of the invention

[0006] The technical problem to be solved by the present invention is generally to provide a high-efficiency planetary rotor sand mixer; the technical problems solved in detail and the beneficial effects achieved are described in detail in the following content and in combination with the contents of the specific implementation methods.

[0007] To solve the above problems, the technical solution adopted by the present invention is:

[0008] A high-efficiency planetary rotor sand mixer, comprising a frame assembly, a sand mixing component arranged on the frame assembly, a drawer-type unloading door device arranged at the bottom of the sand mixing component, a sampler arranged on the frame assembly, a protective cover arranged on the frame assembly, a rectangular butterfly valve arranged on the top of the frame assembly as a feed, a water supply pipeline and a lubrication pipeline arranged on the frame assembly, and a transport support arranged at the bottom of the frame assembly;

[0009] The invention avoids the problems of sand inclusion and sand leakage, avoids sand and dust accumulation on the guide rail, solves the problem of fast wear of the guide roller, improves the wear resistance and sealing performance through the paneling, is easy to replace, and has low cost.

[0010] The present invention improves the problem of sand inclusion in the structural seam after the discharge door is closed: a structural panel is also provided at the interface between the discharge door and the chassis of the frame assembly; and the interface panel material is precision cast Mn13 that is wear-resistant and impact-resistant.

[0011] The traditional roller guide rail is replaced with a matching optical axis bearing of the linear optical axis. The optical axis is equivalent to the guide rail, and the seat is sealed, dustproof and lubricated. The cylinder is replaced by a hydraulic cylinder, which is stable and reliable.

[0012] The beneficial effects of the present invention are not limited to this description. For better understanding, a more detailed description is given in the specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] Figure 2 It is a structural schematic diagram of the present invention from another perspective.

[0015] Figure 3 The structural schematic diagram of the sand mixing of the present invention.

[0016] Figure 4 It is a schematic diagram of the axis distribution structure of the sand mixing of the present invention.

[0017] Figure 5 It is a structural schematic diagram of the sand mixing input of the present invention.

[0018] Figure 6 It is a structural schematic diagram of the sand mixing output of the present invention.

[0019] Figure 7 It is a schematic structural diagram of the first central axis of the rotor of the present invention.

[0020] Figure 8 It is a schematic structural diagram of the second stirring rotor body of the rotor of the present invention.

[0021] Fig. 9 It is a structural schematic diagram of the arc plate of the discharge door of the present invention.

[0022] Fig.10 It is a structural schematic diagram of the unloading pressing plate of the present invention.

[0023] Fig.11 It is a structural schematic diagram of the bottom plate of the unloading step of the present invention.

[0024] Fig.12 It is a structural schematic diagram of the inverted L-shaped limit guide rail for unloading of the present invention.

[0025] Among them: 1. Sand mixing parts; 2. Frame assembly; 3. Drawer-type unloading door device; 5. Protective cover; 6. Rectangular butterfly valve; 7. Water supply pipeline; 8. Lubrication pipeline. 291. Sand mixing transmission gear box; 292. Sand mixing transmission box connection seat; 293. Sand mixing upper cover; 294. Sand mixing transmission connecting plate; 295. Sand mixing pressure plate; 296. Sand mixing upper connecting ring; 297. Sand mixing rotary bearing; 298. Sand mixing first input shaft assembly; 299. Sand mixing transition center shaft assembly; 300. Sand mixing second gear; 301. Sand mixing manual gate valve; 302. Sand mixing rotating wall scraper; 303. Sand mixing rotor indirect output shaft assembly; 304. Sand mixing transmission intermediate wheel shaft assembly; 305. Sand mixing magnetic block; 306. Sand mixing rotor direct output shaft assembly; 101. Sand mixing first gear shaft; 102. The first upper pressure cover for sand mixing; 103, the first round nut for sand mixing; 104, the first stop washer for sand mixing; 105, the first roller bearing for sand mixing; 106, the first spacing sleeve for sand mixing; 107, the first bearing seat for sand mixing; 108, the first self-aligning bearing for sand mixing; 109, the first lower pressure ring for sand mixing; 148, the round nut for sand mixing output; 149, the central axis of sand mixing output; 150, the upper pressure cover for sand mixing output; 151, the roller bearing for sand mixing output; 152, the bearing sleeve for sand mixing output; 153, the self-aligning bearing for sand mixing output; 154, the lower pressure cover for sand mixing output; 155, the sand mixing output pad; 156, the sand mixing output connecting seat; 157, the sand mixing output sleeve. 194, the first central axis of the rotor; 195, the first protective cover of the rotor; 196, the first flange plate of the rotor; 197, the first screw of the rotor; 198, the first pressure plate of the rotor; 199, the first saddle-shaped pressure plate of the rotor; 200, the first connecting sleeve of the rotor; 201, the first downward pressure blade of the rotor; 202, the first blade mother plate of the rotor; 203, the first connecting pin of the rotor; 204, the first upward turning blade of the rotor; 205, the first scraper of the rotor; 206, the first bottom blade of the rotor; 207, the first blade mother plate with fixing bolts of the rotor; 242, the second stirring rotor body of the rotor; 243, the second bolt of the rotor; 244, the second lower blade of the rotor. 331. Discharge door arc plate; 332. Discharge hydraulic cylinder; 333. Discharge zipper protective cover; 334. Discharge bracket; 335. Discharge bracket; 336. Discharge linear optical axis; 337. Discharge zipper protective cover; 338. Discharge guide slide; 339. Discharge pressure plate; 340. Discharge sealing plate; 341. Discharge channel; 342. Discharge bottom V-shaped baffle; 343. Discharge bottom inlay; 344. Discharge step bottom plate; 345. Discharge inverted V-shaped bottom edge; 346. Discharge V-shaped mouth; 347. Discharge L-shaped side inlay; 348. Discharge inverted L-shaped limit guide rail. DETAILED DESCRIPTION

[0026] like Figure 1-12As can be seen, the high-efficiency planetary rotor sand mixer includes a frame assembly 2, a sand mixing component 1 arranged on the frame assembly 2, a drawer-type unloading door device 3 arranged at the bottom of the sand mixing component 1, a sampler arranged on the frame assembly 2, a protective cover 5 arranged on the frame assembly 2, a rectangular butterfly valve 6 arranged on the top of the frame assembly 2 as a feed, a water supply pipeline 7 and a lubrication pipeline 8 arranged on the frame assembly 2, and a transport support arranged at the bottom of the frame assembly 2. A gear mechanism is arranged in the sand mixing component 1;

[0027] like Figure 3-6 The gear mechanism for the high-efficiency planetary sand mixer of the present embodiment comprises a sand mixing transmission gear case 291 arranged on the frame assembly of the sand mixing machine, a sand mixing transmission case connecting seat 292 arranged on the sand mixing transmission gear case 291, a sand mixing upper cover 293 arranged on the frame assembly of the sand mixing machine and having its lower end outer stop sealed and buckled on the upper end stop of the sand mixing transmission case connecting seat 292, a sand mixing transmission connecting plate 294 arranged on the lower end outer stop of the sand mixing upper cover 293 and used for supporting a sealing ring, a sand mixing upper connecting ring 296 arranged on the lower end of the sand mixing upper cover 293 and having its outer side wall in sealing contact with the inner side wall of the upper end stop of the sand mixing transmission case connecting seat 292, a sand mixing pressing plate 295 arranged on the upper end of the inner side wall of the upper end stop of the sand mixing transmission case connecting seat 292 and located on the upper end of the sealing ring of the sand mixing upper connecting ring 296, a sand mixing slewing bearing 297 arranged between the sand mixing upper connecting ring 296 and the sand mixing transmission case connecting seat 292, A first sand mixing input shaft assembly 298 is vertically and rotatably arranged on the sand mixing upper cover 293, a sand mixing transition center shaft assembly 299 is vertically and rotatably arranged on the sand mixing upper cover 293 and meshing with the first sand mixing input shaft assembly 298 for transmission, a sand mixing transmission intermediate wheel shaft assembly 304 and a sand mixing rotor direct output shaft assembly 306 are respectively vertically and rotatably arranged on the sand mixing transition center shaft assembly 299 and meshing with the first sand mixing input shaft assembly 298 for transmission, and a sand mixing rotor indirect output shaft assembly 303 is vertically and rotatably arranged on the sand mixing transition center shaft assembly 299 and meshing with the sand mixing rotor direct output shaft assembly 306.

[0028] The first sand mixing input shaft assembly 298 includes a first sand mixing gear shaft 101 with a transmission connection to the motor at the upper end, a first sand mixing roller bearing 105 and a first sand mixing self-aligning bearing 108 respectively mounted in the middle of the first sand mixing gear shaft 101, a first sand mixing spacer sleeve 106 arranged between the first sand mixing roller bearing 105 and the first sand mixing self-aligning bearing 108, a gear arranged at the lower end of the first sand mixing gear shaft 101, and a gear arranged at the upper end of the first sand mixing roller bearing 105 and used to adjust the first sand mixing roller bearing 105 and the first sand mixing self-aligning shaft. The first sand mixing round nut 103 with axial clearance of the bearing 108, the first sand mixing stop washer 104 arranged between the first sand mixing round nut 103 and the first sand mixing roller bearing 105, the first sand mixing bearing seat 107 sleeved on the outer wall of the first sand mixing roller bearing 105 and the first sand mixing self-aligning bearing 108, the first sand mixing upper pressure cover 102 arranged at the upper end of the sand mixing first bearing seat 107 and in sealed rotation contact with the sand mixing first gear shaft 101, and the first sand mixing lower pressure ring 109 arranged at the lower end of the sand mixing first bearing seat 107.

[0029] A second sand mixing gear 300 is vertically and rotatably arranged on the sand mixing upper cover 293 and is connected to the motor transmission. An inner gear ring meshing with the second sand mixing gear 300 is arranged on the sand mixing transmission box connecting seat 292. A sand mixing rotating wall scraper 302 for cleaning sand adhered to the inner wall of the frame assembly is arranged at the lower end of the sand mixing transmission gear box 291.

[0030] The sand mixing rotor direct output shaft assembly 306 has the same structure as the sand mixing rotor indirect output shaft assembly 303, which includes a gear arranged on the sand mixing output central shaft 149, a sand mixing output round nut 148 arranged at the upper end of the sand mixing output central shaft 149 and located above the gear, a sand mixing output roller bearing 151 and a sand mixing output self-aligning bearing 153 coaxially sleeved on the sand mixing output central shaft 149, a sand mixing output sleeve 157 arranged between the sand mixing output roller bearing 151 and the sand mixing output self-aligning bearing 153, and a sand mixing output roller bearing 151 sleeved on the sand mixing output roller bearing 151 and the sand mixing output self-aligning bearing 153. An output bearing sleeve 152, an upper sand mixing output pressure cover 150 arranged at the upper end of the sand mixing output bearing sleeve 152 and used to press on the sand mixing output roller bearing 151, a lower sand mixing output pressure cover 154 arranged at the lower end of the sand mixing output bearing sleeve 152 and used to lift the sand mixing output self-aligning bearing 153, a sand mixing output pad 155 sleeved on the sand mixing output central shaft 149 and located below the sand mixing output self-aligning bearing 153 and with the outer wall in sealed rotational contact with the inner wall of the sand mixing output lower pressure cover 154, and a sand mixing output connecting seat 156 keyed to the lower end of the sand mixing output central shaft 149 and used to connect to the rotor shaft.

[0031] A sand mixing magnetic block 305 is provided on the sand mixing transmission gear housing 291 .

[0032] A sand mixing manual gate valve 301 is provided at the lower end of the sand mixing transmission gear box 291 .

[0033] The present invention realizes power transmission, thereby driving the rotor shaft to drive the scraper to rotate.

[0034] Motor - sand mixing second gear 300 - gear ring on the bearing - sand mixing transmission box connecting seat 292 - sand mixing transmission gear box 291 - sand mixing rotating wall scraper 302 rotates to achieve sand scraping and stirring;

[0035] Motor-sand mixing first input shaft assembly 298-sand mixing transition center shaft assembly 299 (gear shaft)-sand mixing transmission intermediate wheel shaft assembly 304 / sand mixing rotor direct output shaft assembly 306-sand mixing rotor indirect output shaft assembly 303; thereby, the sand mixing rotor direct output shaft assembly 306 and the sand mixing rotor indirect output shaft assembly 303 rotate in opposite directions and revolve around the sand mixing transition center shaft assembly 299 at the same time, thereby improving the mixing efficiency. The sand mixing magnetic block 305 absorbs impurities.

[0036] The sand mixing slewing bearing 297 realizes the rotation support, the sand mixing second gear 300 and other shafts are driven by gear meshing, the sand mixing manual gate valve 301 realizes the on and off of the liquid, and the sand mixing rotor directly outputs the shaft assembly 306.

[0037] The first sand mixing input shaft assembly 298 - the first sand mixing gear shaft 101 - the sand mixing transition center shaft assembly 299 realizes the output of the revolution power.

[0038] The first upper pressure cover 102 for sand mixing, the first round nut 103 for sand mixing, the first stop washer 104 for sand mixing, the first roller bearing 105 for sand mixing, the first spacer sleeve 106 for sand mixing, the first bearing seat 107 for sand mixing, the first self-aligning bearing 108 for sand mixing, and the first lower pressure ring 109 for sand mixing are reasonably installed, convenient to disassemble and assemble, and convenient to adjust the gap.

[0039] The sand mixing output round nut 148, the sand mixing output center shaft 149, the sand mixing output upper pressure cover 150, the sand mixing output roller bearing 151, the sand mixing output bearing sleeve 152, the sand mixing output self-aligning bearing 153, the sand mixing output lower pressure cover 154, the sand mixing output pad 155, the sand mixing output connecting seat 156, and the sand mixing output sleeve 157 are reasonably installed, easy to disassemble and assemble, and easy to adjust the gap.

[0040] When assembling the input shaft, the coupling originally had no limit on the shaft, but now a limit step is provided on the gear shaft to facilitate disassembly and assembly. Under the principle of not reducing the load-bearing capacity, each shaft is provided with a limit in the axial direction, which is convenient for installation and maintenance, and changes the original problem of requiring the same size in diameter. It does not require heating and pressing, and solves the problem of being unable to disassemble.

[0041] When the lubricating oil injected into the invention is excessive, it can overflow, and when the bearing expands, the outer sleeve can move with the inner sleeve.

[0042] The principle of planetary rotation of the sand mixing rotor is that one motor drives the reduction box to revolve through the internal gear slewing bearing, while another motor drives rotors of different forms and sizes to rotate through gears.

[0043] The present invention preferably has three rotors, which are arranged in a reasonable position. The stirring rotor is very close to the center of the machine basin. When rotating, the night plate straddles the center. The stirring rotor in the working room scrapes up the material in its rotating area and throws it around to provide strong impact for the two sand mixing rotors. The two sand mixing rotors are arranged on the outside of the machine basin. They are close to the circle. The rotation trajectory of the sand mixing rotor overlaps with the rotation trajectory of the stirring rotor and also overlaps with the movement trajectory of the wall scraper. Under the action of the three rotors, the materials rush around in the machine basin and rub against each other without dead angles. The mixed molding sand is suitable for high-pressure molding.

[0044] like Figure 7-8 As shown, the sand mixing rotor shaft mechanism for the high-efficiency planetary rotor sand mixer of this embodiment comprises a rotor shaft arranged at the bottom of the frame assembly and the upper end of which is respectively connected to the lower end of the output shaft corresponding to the gear mechanism of the sand mixer in a driving manner; the rotor shaft is arranged to rotate in the frame assembly;

[0045] The rotor shaft includes a rotor first center axis 194, a rotor first flange plate 196 connected to the lower end of the rotor first center axis 194 by a top screw, a rotor first protective cover 195 sleeved on the outer side of the rotor first flange plate 196 and connected to the outer side wall of the rotor first center axis 194 by a top screw, a rotor first pressure plate 198 arranged below the rotor first protective cover 195 and sleeved on the rotor first center axis 194, a rotor first screw 197 arranged on the rotor first flange plate 196 and with the lower end resting on the upper surface of the rotor first pressure plate 198, a rotor first connecting sleeve 200 coaxially arranged at the lower end of the rotor first center axis 194, and a rotor first saddle pressure plate 199 arranged between the rotor first connecting sleeve 200 and between the rotor first pressure plate 198 and the rotor first connecting sleeve 200.

[0046] The rotor first central axis 194 is also arranged to revolve in the frame assembly.

[0047] On the top rotor first connecting sleeve 200:

[0048] A rotor first connecting sleeve 200 is keyed to the lower end of the rotor first center axis 194; spirally arranged rotor first blade mother plates 202 are respectively connected to the rotor first connecting sleeve 200 through rotor first connecting pins 203, and a rotor first downward pressure blade 201 is connected to the lower end of the rotor first blade mother plate 202 in a downward tilt.

[0049] On the first connecting sleeve 200 of the rotor in the middle:

[0050] A rotor first connecting sleeve 200 is keyed to the lower end of the rotor first center axis 194; a spirally arranged rotor first blade mother plate 202 is connected to the rotor first connecting sleeve 200 through a rotor first connecting pin 203, and a rotor first upturned blade 204 is connected to the upper end of the rotor first blade mother plate 202 at an upward inclination.

[0051] On the bottom rotor first connecting sleeve 200:

[0052] A rotor first connecting sleeve 200 is keyed to the lower end of the rotor first central axis 194; a rotor first blade mother plate 202 is spirally connected to the rotor first connecting sleeve 200 through a rotor first connecting pin 203, and a rotor first upturned blade 204 is tilted upwardly connected to the upper end of the rotor first blade mother plate 202;

[0053] A rotor first blade mother plate 207 with fixing bolts is connected to the bottom of the rotor first central axis 194, and a rotor first bottom blade 206 is arranged on the rotor first blade mother plate 207 with fixing bolts;

[0054] The first rotor scraper 205 is connected to the end of the first rotor blade mother plate 202 and the first rotor bottom blade 206 .

[0055] The rotor shaft further includes a rotor second stirring rotor body 242 which is parallel to the rotor first central axis 194 and rotates in the same direction or in the opposite direction to the rotor first central axis 194 .

[0056] A screw is spirally arranged on the outer side wall of the second stirring rotor body 242 of the rotor, and a second lower rotor blade 244 is obliquely arranged on the screw and connected to the second rotor bolt 243 .

[0057] The second stirring rotor body 242 of the rotor is also arranged to revolve in the frame assembly.

[0058] The revolution radius of the rotor first central axis 194 is greater than the revolution radius of the rotor second stirring rotor body 242 .

[0059] The second stirring rotor body 242 of the rotor is hollow at the bottom and hollow at the sidewall.

[0060] When the present invention is used, the gear shaft drives the first central axis 194 of the rotor to rotate and revolve, the first rotor protective cover 195 plays a role in preventing sand, the first rotor flange plate 196 and the first rotor screw 197 press the first rotor pressure plate 198 downward, and the elasticity of the first rotor saddle pressure plate 199 is used to eliminate the gap between the first rotor connecting sleeve 200, the first rotor downward pressing blade 201 is installed on the rotor first blade mother plate 202 by bolts, and the first rotor connecting pin 203 realizes rapid disassembly and assembly, the lower part of the first rotor flip-up blade 204 rises and the top is pressed downward, which is cleverly designed, the first rotor scraper 205 scrapes the inner wall of the working chamber of the frame assembly, the first rotor bottom blade 206 rotates, and the first rotor blade mother plate 207 with a fixing bolt improves the connection strength and stiffness, because, due to the gravity of the sand, the bottom driving stirring resistance is the largest, the second rotor stirring rotor body 242, the second rotor bolt 243, and the second rotor lower blade 244 realize the circulation of sand in the bottom hole and hollow, thereby improving the stirring efficiency.

[0061] The function of the present invention is to mix sand and stir; the sand mixing rotor plays a major role in mixing the molding sand. During operation, the rotor blades give the molding sand a strong impact force, and the upper inclined surface of the blades also has a certain upward flipping ability. There are 11 blades in total, which are arranged in a spiral shape around the main axis. The two blades on the top have a downward pressing ability, so that the molding sand is concentrated in the lower part of the machine basin, and the rotors that rotate in a planetary motion hit and rub.

[0062] The blades are clamped by blade templates and can be easily replaced when the blades are severely worn and affect the quality of sand mixing.

[0063] The upper and lower layers of the blade's mixing rotor shaft head are preferably at an angle of 30° to the material-throwing frame assembly in the studio. The rotor head rotates around the center of the machine basin, throwing the material in its own rotating area up to the surrounding area, and the sand mixing rotor is cyclically thrown.

[0064] When using the present invention, the sand mixing component 1 is the core component, the frame assembly 2 is the main shell, which serves as the studio for sand mixing, the drawer-type unloading door device 3 realizes the discharge, the sampler detects the sand mixing effect in real time, the protective cover 5 and the rectangular butterfly valve 6 control the switch of the feed, the water supply pipeline 7 adds water in real time, the lubrication pipeline 8 adds lubricating fluid in real time, and the transport support facilitates forklift installation. The internal gear mechanism of the sand mixing component 1 realizes the output, and the stirring is realized through the rotor shaft head.

[0065] like Figure 9-12As shown, the drawer-type unloading door for the high-efficiency planetary rotor sand mixer of this embodiment includes a unloading channel 341 arranged at the bottom of the frame assembly, a unloading bracket 335 arranged on the frame assembly and corresponding to the unloading channel 341, a unloading bracket 334 arranged on the unloading bracket 335, a unloading hydraulic cylinder 332 horizontally arranged on the unloading bracket 334, a unloading linear optical axis 336 arranged parallel to one side of the unloading hydraulic cylinder 332, a unloading door arc plate 331 whose outer end is connected to the piston rod of the unloading hydraulic cylinder 332 and slides on the track of the unloading bracket 335 and is used to open and close the unloading channel 341, and a unloading guide slide 338 arranged on the unloading linear optical axis 336 and sliding and connected to the unloading door arc plate 331.

[0066] A unloading zipper type protective cover 333 is provided between the unloading door arc plate 331 and the unloading hydraulic cylinder 332 ; a unloading zipper protective cover 337 is provided between the unloading guide slide seat 338 and the root of the unloading linear optical axis 336 .

[0067] A V-shaped baffle plate 342 is provided at the bottom of the discharge door arc plate 331;

[0068] A discharge pressure plate 339 for contacting the V-shaped baffle plate 342 at the discharge bottom is also connected to the discharge gate arc plate 331 , and a discharge sealing plate 340 for sealingly contacting the V-shaped baffle plate 342 at the discharge bottom is arranged on the discharge pressure plate 339 .

[0069] The bottom step of the discharge channel 341 is a discharge step bottom plate 344; a discharge bottom trim strip 343 for contacting the lower end surface of the discharge step bottom plate 344 is provided at the end of the discharge door arc plate 331;

[0070] When the discharging bottom trim strip 343 is located above the raised step of the discharging step bottom plate 344, the upper end of the discharging bottom trim strip 343 and the upper end of the discharging step bottom plate 344 form a discharging V-shaped opening 346; the lower end of the discharging bottom trim strip 343 and the lower end of the discharging step bottom plate 344 form a discharging inverted V-shaped bottom edge 345, thereby avoiding the accumulation of sand.

[0071] The side guide rail of the discharge channel 341 is an inverted L-shaped limit rail 348 for discharge, and an L-shaped side strip 347 for discharge corresponding to the inverted L-shaped limit rail 348 for discharge is arranged on the side of the discharge door arc plate 331; the step surface of the L-shaped side strip 347 for discharge is located above the raised end of the inverted L-shaped limit rail 348 for discharge, so as to realize the function of the chassis of the frame assembly to lift the discharge door.

[0072] When the present invention is used, the unloading hydraulic cylinder 332 drives the unloading door arc plate 331 to reciprocate along the inlaid strip guide rail, and the dust and sand prevention effect is achieved through the protective cover. The unloading linear optical axis 336 avoids dust collection. The unloading pressure plate 339 and the unloading sealing plate 340 are firmly combined with the unloading sealing plate 340, and the sealing effect is good. The unloading bottom inlaid strip 343 has good wear resistance.

[0073] The principle of planetary rotation of the sand mixing rotor is that one motor drives the reduction box to revolve through the internal gear slewing bearing, while another motor drives rotors of different forms and sizes to rotate through gears.

[0074] The lower end of each rotor is provided with blades for cleaning the chassis, which cleans the basin floor while mixing sand.

[0075] The present invention arranges the rotors reasonably. The stirring rotor is very close to the center of the machine basin of the frame assembly and straddles the center when rotating. The stirring rotor in the working room scrapes up the materials in its own rotating area and throws them around to provide strong impact for the sand mixing rotor. The two sand mixing rotors are arranged on the outside of the machine basin of the frame assembly. The rotation trajectory of the sand mixing rotor overlaps with the rotation trajectory of the stirring rotor and also overlaps with the movement trajectory of the wall scraper. Under the action of the three rotors, the materials rush around in the machine basin and rub against each other without dead angles. The mixed molding sand is suitable for high-pressure molding.

[0076] The invention has reasonable design, low cost, durability, safety and reliability, simple operation, time and labor saving, money saving, compact structure and convenient use.

[0077] The present invention is fully described for a clearer disclosure, and the prior art will not be listed one by one.

Claims

1. A high-efficiency planetary rotor sand mixer, characterized by: The machine comprises a frame assembly (2), a sand mixing component (1) arranged on the frame assembly (2), a drawer-type unloading door device (3) arranged at the bottom of the sand mixing component (1), a sampler arranged on the frame assembly (2), a protective cover (5) arranged on the frame assembly (2), a rectangular butterfly valve (6) arranged on the top of the frame assembly (2) as a feed material, a water supply pipeline (7) and a lubrication pipeline (8) arranged on the frame assembly (2), and a transport support arranged at the bottom of the frame assembly (2); The sand mixing component (1) comprises a gear mechanism; The gear mechanism comprises a sand mixing transmission gear box (291) arranged on the frame assembly (2), a sand mixing transmission box connection seat (292) arranged on the sand mixing transmission gear box (291), a sand mixing upper cover (293) arranged on the frame assembly of the sand mixer and having an outer stop at the lower end sealed and buckled to cover the upper end stop of the sand mixing transmission box connection seat (292), a sand mixing transmission connecting plate (294) disposed at the outer stopper at the lower end of the sand mixing upper cover (293) and used for supporting a sealing ring; a sand mixing upper connecting ring (296) disposed at the lower end of the sand mixing upper cover (293) and having an outer wall in sealing contact with an inner wall of an upper stopper at the sand mixing transmission box connecting seat (292); a sand mixing pressing plate (295) disposed at the upper end of the inner wall of the upper stopper at the sand mixing transmission box connecting seat (292) and located at the upper end of the sealing ring of the sand mixing upper connecting ring (296); and a sand mixing slewing bearing (297) disposed between the sand mixing upper connecting ring (296) and the sand mixing transmission box connecting seat (292). A first sand mixing input shaft assembly (298) vertically and rotatably arranged on the sand mixing upper cover (293), a sand mixing transition center shaft assembly (299) vertically and rotatably arranged on the sand mixing upper cover (293) and meshingly driving with the first sand mixing input shaft assembly (298), a sand mixing transmission intermediate wheel shaft assembly (304) and a sand mixing rotor direct output shaft assembly (306) vertically and rotatably arranged on the sand mixing transition center shaft assembly (299) and meshingly driving with the first sand mixing input shaft assembly (298), and a sand mixing rotor indirect output shaft assembly (303) vertically and rotatably arranged on the sand mixing transition center shaft assembly (299) and meshingly driving with the sand mixing rotor direct output shaft assembly (306); The first sand mixing input shaft assembly (298) comprises a first sand mixing gear shaft (101) whose upper end is connected to the motor for transmission, a first sand mixing roller bearing (105) and a first sand mixing self-aligning bearing (108) respectively sleeved on the middle of the first sand mixing gear shaft (101), a first sand mixing spacer sleeve (106) arranged between the first sand mixing roller bearing (105) and the first sand mixing self-aligning bearing (108), a gear arranged at the lower end of the first sand mixing gear shaft (101), and a gear arranged at the upper end of the first sand mixing roller bearing (105) and used for adjusting the first sand mixing roller bearing (105) and the first sand mixing self-aligning bearing (108). 108) a first sand mixing round nut (103) with axial play, a first sand mixing stop washer (104) arranged between the first sand mixing round nut (103) and the first sand mixing roller bearing (105), a first sand mixing bearing seat (107) sleeved on the outer side walls of the first sand mixing roller bearing (105) and the first sand mixing self-aligning bearing (108), a first sand mixing upper pressure cover (102) arranged at the upper end of the first sand mixing bearing seat (107) and in sealing rotational contact with the first sand mixing gear shaft (101), and a first sand mixing lower pressure ring (109) arranged at the lower end of the first sand mixing bearing seat (107); A second sand mixing gear (300) is vertically and rotatably arranged on the sand mixing upper cover (293) and is transmission-connected to the motor; an inner gear ring meshing with the second sand mixing gear (300) is arranged on the sand mixing transmission housing connection seat (292); and a sand mixing rotating wall scraper (302) for cleaning sand adhering to the inner wall of the frame assembly is arranged at the lower end of the sand mixing transmission gear housing (291); The sand mixing rotor direct output shaft assembly (306) has the same structure as the sand mixing rotor indirect output shaft assembly (303), and comprises a gear arranged on the sand mixing output central shaft (149), a sand mixing output round nut (148) arranged at the upper end of the sand mixing output central shaft (149) and located above the gear, a sand mixing output roller bearing (151) and a sand mixing output self-aligning bearing (153) coaxially sleeved on the sand mixing output central shaft (149), a sand mixing output sleeve (157) arranged between the sand mixing output roller bearing (151) and the sand mixing output self-aligning bearing (153), a sand mixing output bearing sleeve (152) sleeved on the sand mixing output roller bearing (151) and the sand mixing output self-aligning bearing (153), and a sand mixing output connecting seat (156) key-connected to the lower end of the sand mixing output central shaft (149) and used for connecting to the rotor shaft.

2. The high-efficiency planetary rotor sand mixer according to claim 1, characterized in that : The sand mixing component (1) also includes a rotor shaft mechanism drivingly connected to the gear mechanism; The rotor shaft mechanism comprises a rotor shaft arranged at the bottom of the frame assembly (2) and the upper end of which is respectively drivingly connected to the lower end of the corresponding output shaft of the sand mixer gear mechanism; the rotor shaft is arranged to rotate in the frame assembly; The rotor shaft comprises a rotor first central shaft (194), a rotor first flange plate (196) connected to the lower end of the rotor first central shaft (194) by means of a top screw, a rotor first protective cover (195) sleeved on the outer side of the rotor first flange plate (196) and connected to the outer side wall of the rotor first central shaft (194) by means of a top screw, a rotor first pressure plate (198) arranged below the rotor first protective cover (195) and sleeved on the rotor first central shaft (194), a rotor first screw (197) arranged on the rotor first flange plate (196) and with the lower end abutting against the upper surface of the rotor first pressure plate (198), a rotor first connecting sleeve (200) coaxially arranged at the lower end of the rotor first central shaft (194), and a rotor first saddle-shaped pressure plate (199) arranged between the rotor first connecting sleeve (200) and between the rotor first pressure plate (198) and the rotor first connecting sleeve (200); The first central axis (194) of the rotor is also arranged to revolve in the frame assembly; On the top rotor first connecting sleeve (200): A rotor first connecting sleeve (200) is key-connected to the lower end of the rotor first central axis (194); spirally arranged rotor first blade mother plates (202) are respectively connected to the rotor first connecting sleeve (200) via rotor first connecting pins (203); and a rotor first pressing blade (201) is connected to the lower end of the rotor first blade mother plate (202) in a downwardly inclined manner; On the first connecting sleeve (200) of the rotor in the middle: A rotor first connecting sleeve (200) is key-connected to the lower end of the rotor first central axis (194); spirally arranged rotor first blade mother plates (202) are respectively connected to the rotor first connecting sleeve (200) via rotor first connecting pins (203); and a rotor first upward-turning blade (204) is connected to the upper end of the rotor first blade mother plate (202) in an upwardly inclined manner; On the bottom rotor first connecting sleeve (200): A rotor first connecting sleeve (200) is key-connected to the lower end of the rotor first central axis (194); spirally arranged rotor first blade mother plates (202) are respectively connected to the rotor first connecting sleeve (200) via rotor first connecting pins (203); and a rotor first upward-turning blade (204) is connected to the upper end of the rotor first blade mother plate (202) in an upwardly inclined manner; A rotor first blade mother plate (207) with fixing bolts is connected to the bottom of the rotor first central axis (194), and a rotor first bottom blade (206) is arranged on the rotor first blade mother plate (207) with fixing bolts; A rotor first scraper (205) is connected to the ends of the rotor first blade mother plate (202) and the rotor first bottom blade (206); The rotor shaft also includes a rotor second stirring rotor body (242) which is parallel to the rotor first central axis (194) and rotates in the same direction or in the opposite direction to the rotor first central axis (194); A screw rod is spirally arranged on the outer side wall of the second stirring rotor body (242) of the rotor, and a second lower rotor blade (244) is obliquely arranged on the screw rod and connected to the second rotor bolt (243).

3. The high-efficiency planetary rotor sand mixer according to claim 2, characterized in that : The second stirring rotor body (242) of the rotor is also arranged to revolve in the frame assembly; The orbital radius of the first central axis (194) of the rotor is greater than the orbital radius of the second stirring rotor body (242) of the rotor.

4. The high-efficiency planetary rotor sand mixer according to claim 3, characterized in that The second stirring rotor body (242) of the rotor is hollow at the bottom and hollow at the side wall.

5. The high-efficiency planetary rotor sand mixer according to any one of claims 1 to 4, characterized in that The drawer-type unloading door device (3) comprises a unloading channel (341) arranged at the bottom of the frame assembly (2), a unloading bracket (335) arranged on the frame assembly and corresponding to the unloading channel (341), a unloading bracket (334) arranged on the unloading bracket (335), a unloading hydraulic cylinder (332) arranged horizontally on the unloading bracket (334), a unloading linear optical axis (336) arranged parallel to one side of the unloading hydraulic cylinder (332), a unloading door arc plate (331) whose outer end is connected to the piston rod of the unloading hydraulic cylinder (332) and slides on the track of the unloading bracket (335) and is used to open and close the unloading channel (341), and a unloading guide slide seat (338) arranged on the unloading linear optical axis (336) and connected to the unloading door arc plate (331).

6. The high-efficiency planetary rotor sand mixer according to claim 5, characterized in that : A discharging zipper type protective cover (333) is sleeved between the discharging door arc plate (331) and the discharging hydraulic cylinder (332); a discharging zipper protective cover (337) is arranged between the discharging guide slide seat (338) and the root of the discharging linear optical axis (336).

7. The high-efficiency planetary rotor sand mixer according to claim 6, characterized in that : A discharge bottom V-shaped baffle plate (342) is provided below the discharge door arc plate (331); A discharge pressure plate (339) for contacting the V-shaped baffle plate (342) at the discharge bottom is also connected to the discharge door arc plate (331), and a discharge sealing plate (340) for sealingly contacting the V-shaped baffle plate (342) at the discharge bottom is provided on the discharge pressure plate (339).

8. The high-efficiency planetary rotor sand mixer according to claim 7, characterized in that : The bottom step of the discharge channel (341) is a discharge step bottom plate (344); a discharge bottom trim strip (343) for contacting the lower end surface of the discharge step bottom plate (344) is provided at the end of the discharge door arc plate (331); When the unloading bottom inlay strip (343) is located above the raised step of the unloading step bottom plate (344), the upper end of the unloading bottom inlay strip (343) and the upper end of the unloading step bottom plate (344) form a unloading V-shaped opening (346); the lower end of the unloading bottom inlay strip (343) and the lower end of the unloading step bottom plate (344) form an unloading inverted V-shaped bottom edge (345).

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