CN209953740U

CN209953740U - High-efficient planet is gear mechanism for sand mixer

Info

Publication number: CN209953740U
Application number: CN201920677686.6U
Authority: CN
Inventors: 刘永伟; 刘永军; 耿学成
Original assignee: Qingdao Tianhui Intelligent Machinery Technology Co Ltd
Current assignee: Qingdao Tianhui Intelligent Machinery Technology Co Ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-01-17
Anticipated expiration: 2029-05-13

Abstract

The utility model relates to a gear mechanism for a high-efficiency planetary sand mixer, which comprises a sand mixing transmission gear box body arranged on a frame assembly of the sand mixer, a sand mixing transmission box body connecting seat arranged on the sand mixing transmission gear box body, a sand mixing upper cover which is arranged on the frame assembly of the sand mixer and has a lower end outer spigot seal buckle cover on a spigot on the upper end of the sand mixing transmission box body connecting seat, a sand mixing transmission connecting plate which is arranged on the lower end outer spigot of the sand mixing upper cover and is used for supporting a sealing ring, a sand mixing upper connecting ring which is arranged on the lower end of the sand mixing upper cover and has an outer wall which is in sealing contact with the inner wall of the spigot on the upper end of the sand mixing transmission box body connecting seat, and a sand mixing press plate which is arranged on the inner wall of the spigot on; the utility model relates to a rationally, compact structure and convenient to use.

Description

High-efficient planet is gear mechanism for sand mixer

Technical Field

The utility model relates to a high-efficient planet is gear mechanism for sand mixer.

Background

At present, a sand mixer is widely applied to the casting industry as a device for mixing molding sand, and the sand mixer is a device for uniformly mixing all components in the molding sand and effectively coating an adhesive on the surface of the sand. The sand mixer utilizes the relative motion of the grinding wheel and the grinding disc to crush materials placed between the grinding wheel and the grinding disc under the action of grinding and grinding, and the sand mixer also mixes the materials while crushing the materials. Is an ideal device for producing baking-free bricks, lime-sand bricks, cement bricks, refractory bricks, pulverized and mixed fly ash, boiler slag, tailing slag and industrial waste residues as raw materials for making bricks. The bottom plate of the grinding pan and the outer ring of the grinding pan of the sand mixer are both provided with anti-abrasion guard plates to improve the effects of grinding and grinding materials and prolong the service life of the whole machine. The height of the grinding wheel on the grinding disc can be automatically adjusted, and the grinding wheel is automatically lifted to ensure safety when materials which are difficult to grind and an excessively thick material layer are encountered. The application is as follows: the core sand is mixed in a foundry, and can be used for mixing particles or powdery materials in the industries of glass, ceramics, chemical engineering, building materials, molds and the like. For mixing resin self-hardening sand. The sand mixer adopts a rotary blade, dry sand enters two sand mixing tanks during sand mixing, an adhesive is added into one of the sand mixing tanks, a hardening agent is added into the other sand mixing tank to be premixed with raw sand, then the mixture enters a vertical stirrer from an outlet at the tail end of the sand mixing tank, is quickly mixed and discharged, and fills a sand box or a core box. And (3) automatically cutting off the passages of the hardening agent and the adhesive immediately after the sand filling, closing the sand inlet gate plate and removing the residual molding sand in the groove.

Traditional roller mill is at the in-process of mixing the system molding sand, and the molding sand often can pile up at roller mill casing inside wall annex, still can bond at the roller mill casing, when unloading the sand, can't unload the molding sand of mixing the system completely to cause the waste, also can lead to the molding sand to mix simultaneously and system inhomogeneously, can not reach the molding sand and mix the required standard of system, thereby influence the quality of molding sand, can't satisfy the needs of casting production.

The existing sand mixer is simple in transmission structure, complex in assembly process and inconvenient to disassemble and assemble, a bearing shaft begins to expand when the oil temperature rises in the traditional rotor shaft assembly, the original motor is over-powered or the bearing is burnt out, and a designed shaft has no telescopic room.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a high-efficiency gear mechanism for a planetary sand mixer; the technical problems to be solved and the advantages to be achieved are set forth in the description which follows and in the detailed description of the embodiments.

In order to solve the above problems, the utility model adopts the following technical proposal:

a gear mechanism for a high-efficiency planetary sand mixer comprises a sand mixing transmission gear box body arranged on a frame assembly of the sand mixer, a sand mixing transmission box body connecting seat arranged on the sand mixing transmission gear box body, a sand mixing upper cover arranged on the frame assembly of the sand mixer and provided with a lower end outer spigot seal buckle cover at a spigot at the upper end of the sand mixing transmission box body connecting seat, a sand mixing transmission connecting plate arranged at a lower end outer spigot of the sand mixing upper cover and used for supporting a sealing ring, a sand mixing upper connecting ring arranged at the lower end of the sand mixing upper cover and provided with an outer side wall in seal contact with the inner side wall of the spigot at the upper end of the sand mixing transmission box body connecting seat, a sand mixing pressing plate arranged at the upper end inner side wall of the spigot at the upper end of the sand mixing transmission box body connecting seat and positioned at the upper end of the sand mixing upper connecting ring, a sand mixing slewing bearing arranged between the sand mixing upper connecting ring and the sand mixing transmission box body connecting seat, The vertical and rotary sand mixing transition central shaft assembly is arranged on the sand mixing upper cover and is in meshing transmission with the first sand mixing input shaft assembly, the sand mixing transmission intermediate wheel shaft assembly and the direct sand mixing rotor output shaft assembly are respectively arranged on the sand mixing transition central shaft assembly in a vertical and rotary mode and are in meshing transmission with the first sand mixing input shaft assembly, and the indirect sand mixing rotor output shaft assembly is arranged on the sand mixing transition central shaft assembly in a vertical and rotary mode and is in meshing transmission with the direct sand mixing rotor output shaft assembly.

As a further improvement of the above technical solution:

the first sand mulling input shaft assembly comprises a first sand mulling gear shaft, a first sand mulling roller bearing and a first sand mulling self-aligning bearing, a first sand mulling spacing sleeve, a gear, a first sand mulling stop washer, a first sand mulling bearing seat, a first sand mulling upper gland and a second sand mulling upper gland, wherein the upper end of the first sand mulling gear shaft is in transmission connection with a motor, the first sand mulling roller bearing and the first sand mulling self-aligning bearing are respectively sleeved in the middle of the first sand mulling gear shaft, the first sand mulling spacing sleeve is arranged between the first sand mulling roller bearing and the first sand mulling self-aligning bearing, the first sand mulling round nut is arranged at the upper end of the first sand mulling roller bearing and used for adjusting axial clearance between the first sand mulling roller bearing and the first sand mulling self-aligning bearing, the first sand mulling stop washer is arranged between the first sand mulling round nut, And a sand mulling first lower pressing ring arranged at the lower end of the sand mulling first bearing seat.

The sand mulling device is characterized in that a second vertical and rotary sand mulling gear which is connected with a motor in a transmission mode is arranged on the sand mulling upper cover, an inner gear ring which is engaged with the second sand mulling gear is arranged on a connecting seat of the sand mulling transmission box body, and a sand mulling rotary wall scraper used for cleaning adhered sand on the inner wall of the rack assembly is arranged at the lower end of the sand mulling transmission box body.

The direct output shaft assembly of the sand mulling rotor has the same structure as the indirect output shaft assembly of the sand mulling rotor, and comprises a gear arranged on a sand mulling output central shaft, a sand mulling output round nut arranged at the upper end of the sand mulling output central shaft and positioned above the gear, a sand mulling output roller bearing and a sand mulling output self-aligning bearing coaxially sleeved on the sand mulling output central shaft, a sand mulling output sleeve arranged between the sand mulling output roller bearing and the sand mulling output self-aligning bearing, a sand mulling output bearing sleeve sleeved on the sand mulling output roller bearing and the sand mulling output self-aligning bearing, a sand mulling output upper gland arranged at the upper end of the sand mulling output bearing sleeve and used for pressing on the sand mulling output roller bearing, a sand mulling output lower gland arranged at the lower end of the sand mulling output bearing sleeve and used for lifting the sand mulling output self-aligning bearing, a sand mulling output pad sleeved on the sand mulling output central shaft and positioned below the sand output, And the key-type is connected at the lower end of the sand mulling output central shaft and is used for connecting the sand mulling output connecting seat of the rotor shaft.

A sand mulling magnetic block is arranged on the sand mulling transmission gear box body.

And a sand mulling manual gate valve is arranged at the lower end of the sand mulling transmission gear box body. The advantages of the invention are not limited to the description, but rather are described in greater detail in the detailed description for better understanding.

Drawings

Fig. 1 is a schematic structural diagram of the sand mulling of the utility model.

Fig. 2 is a schematic view of the shaft distribution structure of the sand mulling of the present invention.

Fig. 3 is a schematic structural diagram of the sand mulling input of the present invention.

Fig. 4 is a schematic structural diagram of the sand mulling output of the utility model.

Wherein: 291. a sand mulling transmission gear box body; 292. a sand mulling transmission box body connecting seat; 293. covering the sand mixer; 294. a sand mulling transmission connecting plate; 295. a sand mixing press plate; 296. connecting rings are arranged on the mixed sand; 297. a sand mulling slewing bearing; 298. a sand mulling first input shaft assembly; 299. a sand mulling transition central shaft assembly; 300. a sand mulling second gear; 301. a sand mulling manual gate valve; 302. a sand mulling revolving wall scraper; 303. the indirect output shaft assembly of the sand mixing rotor; 304. a sand mulling transmission intermediate wheel shaft assembly; 305. a sand mixing magnetic block; 306. the sand mixing rotor directly outputs the shaft assembly; 101. a sand mulling first gear shaft; 102. a sand mulling first upper gland; 103. a sand mulling first round nut; 104. a first sand mulling backstop gasket; 105. a sand mulling first roller bearing; 106. a first sand mulling spacer sleeve; 107. a first bearing block for mulling; 108. a sand mulling first self-aligning bearing; 109. sand mulling the first lower pressing ring; 148. the sand mulling outputs a round nut; 149. a sand mulling output central shaft; 150. the sand mulling is output and is pressed on a cover; 151. a sand mulling output roller bearing; 152. a sand mulling output bearing sleeve; 153. a sand mulling output self-aligning bearing; 154. the sand mulling outputs a lower gland; 155. a sand mulling output pad; 156. a sand mulling output connecting seat; 157. and (5) a sand mulling output sleeve.

Detailed Description

As shown in fig. 1-4, the gear mechanism for the high-efficiency planetary sand mixer of this embodiment includes a sand mixing transmission gear box 291 disposed on the frame assembly of the sand mixer, a sand mixing transmission box connecting seat 292 disposed on the sand mixing transmission gear box 291, a sand mixing upper cover 293 disposed on the frame assembly of the sand mixer and covering the spigot at the upper end of the sand mixing transmission box connecting seat 292 with a lower spigot seal, a sand mixing transmission connecting plate 294 disposed at the lower spigot 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 the inner wall of the spigot at the upper end of the sand mixing transmission box connecting seat 292, a sand mixing pressing plate 295 disposed at the upper end of the spigot inner wall at the upper end of the sand mixing transmission box connecting seat 292 and located at the upper end of the sealing ring 296, and a sand mixing rotary support 297 disposed between the sand mixing upper connecting ring 296 and the sand mixing, The first sand mulling input shaft assembly 298 which is vertically and rotatably arranged on the sand mulling upper cover 293, the first sand mulling transition central shaft assembly 299 which is vertically and rotatably arranged on the sand mulling upper cover 293 and is in meshing transmission with the first sand mulling input shaft assembly 298, the first sand mulling transmission intermediate shaft assembly 304 and the first sand mulling rotor direct output shaft assembly 306 which are vertically and rotatably arranged on the sand mulling transition central shaft assembly 299 and are in meshing transmission with the first sand mulling input shaft assembly 298 respectively, and the first sand mulling rotor indirect output shaft assembly 303 which is vertically and rotatably arranged on the sand mulling transition central shaft assembly 299 and is in meshing transmission with the first sand mulling rotor direct output shaft assembly 306.

The sand mulling first input shaft assembly 298 comprises a sand mulling first gear shaft 101, a sand mulling first roller bearing 105 and a sand mulling first self-aligning bearing 108, a sand mulling first spacer 106, a gear, a sand mulling first round nut 103, a sand mulling first anti-return gasket 104, a sand mulling first bearing seat 107, a sand mulling first upper gland 102 and a sand mulling first input shaft assembly 298, wherein the upper end of the sand mulling first input shaft assembly is in transmission connection with a motor, the sand mulling first roller bearing 105 and the sand mulling first self-aligning bearing 108 are respectively sleeved on the middle of the sand mulling first gear shaft 101, the sand mulling first spacer 106 is arranged between the sand mulling first roller bearing 105 and the sand mulling first self-aligning bearing 108, the sand mulling first round nut 103 is arranged at the lower end of the sand mulling first gear shaft 101, the sand mulling first round nut 103 and the sand mulling first roller bearing 105 are arranged at the upper end of the sand mulling first roller bearing 105, the sand, And a kneaded sand first lower retainer 109 provided at a lower end of the kneaded sand first bearing housing 107.

A second sand mixing gear 300 which is vertically and rotationally arranged on the upper sand mixing cover 293 and is in transmission connection with the motor, an inner gear ring which is engaged with the second sand mixing gear 300 is arranged on the connecting seat 292 of the sand mixing transmission box body, and a sand mixing rotating wall scraper 302 which is used for cleaning sand adhered to the inner wall of the rack assembly is arranged at the lower end of the sand mixing transmission gear box body 291.

The direct output shaft assembly 306 of the sand mulling rotor has the same structure as the indirect output shaft assembly 303 of the sand mulling rotor, and comprises a gear arranged on the mulling output central shaft 149, a mulling output round nut 148 arranged at the upper end of the mulling output central shaft 149 and positioned above the gear, a mulling output roller bearing 151 and a mulling output self-aligning bearing 153 coaxially sleeved on the mulling output central shaft 149, a mulling output sleeve 157 arranged between the mulling output roller bearing 151 and the mulling output self-aligning bearing 153, a mulling output bearing sleeve 152 sleeved on the mulling output roller bearing 151 and the mulling output self-aligning bearing 153, a mulling output upper gland 150 arranged at the upper end of the mulling output bearing sleeve 152 and used for pressing on the mulling output roller bearing 151, a mulling output lower gland 154 arranged at the lower end of the mulling output bearing sleeve 152 and used for lifting the mulling output self-aligning bearing 153, a mulling output lower gland 154 sleeved on the mulling output central shaft 149 and positioned below the mulling output central shaft 153 and having A sand mixing output pad 155 which is in sealed rotary contact with the inner side wall of the lower gland 154, and a sand mixing output connecting base 156 which is connected at the lower end of the sand mixing output central shaft 149 by a key and is used for connecting a rotor shaft.

A sand mulling magnet block 305 is provided on the sand mulling transmission gear box 291.

A hand-operated gate valve 301 for kneading sand is provided at the lower end of the kneading sand transmission gear box 291.

Use the utility model discloses a power transmission to it is rotatory that drive rotor shaft drives the scraper blade.

The motor-sand mulling second gear 300-gear ring gear on the bearing-sand mulling transmission box connecting seat 292-sand mulling transmission box 291-sand mulling rotating wall scraper 302 rotate to realize the sand scraping and stirring;

a motor-sand mulling first input shaft assembly 298-a sand mulling transition central shaft assembly 299 (gear shaft) -sand mulling transmission intermediate shaft assembly 304/sand mulling rotor direct output shaft assembly 306-sand mulling rotor indirect output shaft assembly 303; therefore, the direct output shaft assembly 306 of the sand mixing rotor and the indirect output shaft assembly 303 of the sand mixing rotor rotate reversely and revolve around the sand mixing transition central shaft assembly 299, and therefore stirring efficiency is improved. The sand mulling magnetic block 305 adsorbs impurities.

The sand mulling slewing bearing 297 realizes the rotary support, the shafts of the sand mulling second gear 300 and the like are in meshing transmission through gears, the sand mulling manual gate valve 301 realizes the on-off of liquid, the sand mulling rotor directly outputs the shaft assembly 306,

the first sand mulling input shaft assembly 298, the first sand mulling gear shaft 101 and the sand mulling transition central shaft assembly 299 realize revolution power output,

the first upper sand mulling gland 102, the first round mulling nut 103, the first sand mulling stopping gasket 104, the first sand mulling roller bearing 105, the first sand mulling spacer sleeve 106, the first sand mulling bearing seat 107, the first sand mulling self-aligning bearing 108 and the first sand mulling lower pressing ring 109 are reasonable in installation, convenient to disassemble and assemble and convenient to adjust gaps.

The sand mulling output round nut 148, the sand mulling output central shaft 149, the sand mulling output upper gland 150, the sand mulling output roller bearing 151, the sand mulling output bearing sleeve 152, the sand mulling output self-aligning bearing 153, the sand mulling output lower gland 154, the sand mulling output pad 155, the sand mulling output connecting seat 156 and the sand mulling output sleeve 157 are reasonable in installation, convenient to disassemble and assemble and convenient to adjust gaps.

The input shaft assembly is that the shaft coupling is not limited on the shaft originally, and the gear shaft is provided with a limiting step so as to be convenient to disassemble and assemble. Under the principle that bearing capacity is not reduced, each axial is provided with a limit position, installation and maintenance are convenient, the problem that the diameter of the original shaft is required to be the same in size is solved, heating and press fitting are not needed, and the problem that the shaft cannot be disassembled is solved.

The utility model discloses the lubricating oil when injecting into has had more can spill over, and when the bearing inflation back, the overcoat skin can remove along with the endotheca.

The principle of the planetary rotation of the sand mixing rotor is that one motor drives a reduction gearbox to revolve through an internal tooth type slewing bearing, and the other motor drives rotors in different forms and sizes to self-transfer through gears.

The utility model discloses preferred three rotor, its position rational arrangement, stirring rotor is very close from quick-witted basin center, the center is striden to the dish night during rotation, studio stirring rotor scrapes the regional material of own gyration, and think and throw all around, supply 2 muddy sand rotors with strong striking, two muddy sand rotors establish the outside at the quick-witted basin, it is close according to the enclosure, the rotatory orbit of muddy sand rotor overlaps with stirring rotor's rotatory orbit, overlap with the motion orbit of wall scraper blade again simultaneously, under the effect of three rotor, make the material violently strike directly and hit in the quick-witted basin, the looks mutual friction, no dead angle, the molding sand of mixing is applicable to high-pressure molding.

The utility model relates to a rationally, low cost, durable, safe and reliable, easy operation, labour saving and time saving, saving fund, compact structure and convenient to use.

The present invention has been fully described for a clear disclosure, and is not to be construed as an exemplification of the prior art.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; it is obvious to those skilled in the art that a plurality of embodiments of the present invention may be combined. Such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. The utility model provides a high-efficient planet is gear mechanism for sand mixer which characterized in that: the sand mixing transmission device comprises a sand mixing transmission gear box body (291) arranged on a frame assembly of a sand mixing machine, a sand mixing transmission box body connecting seat (292) arranged on the sand mixing transmission gear box body (291), a sand mixing upper cover (293) arranged on the frame assembly of the sand mixing machine and provided with a lower end outer spigot seal buckle cover at an upper end spigot of the sand mixing transmission box body connecting seat (292), a sand mixing transmission connecting plate (294) arranged at a lower end outer spigot of the sand mixing upper cover (293) and used for supporting a sealing ring, a sand mixing upper connecting ring (296) arranged at the lower end of the sand mixing upper cover (293) and provided with an outer wall in sealing contact with an inner wall of the upper end spigot of the sand mixing transmission box body connecting seat (292), a sand mixing pressing plate (295) arranged at the upper end spigot inner wall of the sand mixing transmission box body connecting seat (292) and positioned at the upper end of the sealing ring (296), and a sand mixing slewing bearing (297) arranged between the sand mixing upper connecting ring (296), The sand mixing device comprises a sand mixing first input shaft assembly (298) vertically and rotatably arranged on a sand mixing upper cover (293), a sand mixing transition central shaft assembly (299) vertically and rotatably arranged on the sand mixing upper cover (293) and in meshing transmission with the sand mixing first input shaft assembly (298), a sand mixing transmission intermediate shaft assembly (304) and a sand mixing rotor direct output shaft assembly (306) respectively vertically and rotatably arranged on the sand mixing transition central shaft assembly (299) and in meshing transmission with the sand mixing first input shaft assembly (298), and a sand mixing rotor indirect output shaft assembly (303) vertically and rotatably arranged on the sand mixing transition central shaft assembly (299) and in meshing transmission with the sand mixing rotor direct output shaft assembly (306).

2. The gear mechanism for the high-efficiency planetary sand mixer as claimed in claim 1, wherein the first sand mixing input shaft assembly (298) comprises a first sand mixing gear shaft (101) with the upper end in transmission connection with a motor, a first sand mixing roller bearing (105) and a first sand mixing self-aligning bearing (108) which are respectively sleeved 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), a first sand mixing round nut (103) arranged at the upper end of the first sand mixing roller bearing (105) and used for adjusting the axial clearance between the first sand mixing roller bearing (105) and the first sand mixing self-aligning bearing (108), and a first sand mixing non-backing washer (104) arranged between the first sand mixing round nut (103) and the first sand mixing roller bearing (105), The first sand mulling bearing seat (107) is sleeved on the outer side walls of the first sand mulling roller bearing (105) and the first sand mulling self-aligning bearing (108), the first sand mulling upper gland (102) is arranged at the upper end of the first sand mulling bearing seat (107) and is in sealed rotary contact with the first sand mulling gear shaft (101), and the first sand mulling lower retainer ring (109) is arranged at the lower end of the first sand mulling bearing seat (107).

3. The gear mechanism for the high-efficiency planetary sand mixer is characterized in that a sand mixing second gear (300) which is vertically and rotationally arranged on a sand mixing upper cover (293) and is in transmission connection with a motor is arranged, an inner gear ring which is internally meshed with the sand mixing second gear (300) is arranged on a sand mixing transmission box body connecting seat (292), and a sand mixing rotating wall scraper (302) for cleaning sand adhered to the inner wall of a rack assembly is arranged at the lower end of a sand mixing transmission gear box body (291).

4. The gear mechanism for the high-efficiency planetary sand mixer according to claim 1 is characterized in that the direct output shaft assembly (306) of the sand mixing rotor has the same structure as the indirect output shaft assembly (303) of the sand mixing rotor, 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 positioned 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 upper gland (150) arranged at the upper end of the sand mixing output bearing sleeve (152) and used for pressing on the sand mixing output roller bearing (151), The sand mixing output connecting seat comprises a sand mixing output lower gland (154) which is arranged at the lower end of a sand mixing output bearing sleeve (152) and used for lifting a sand mixing output self-aligning bearing (153), a sand mixing output cushion (155) which is sleeved on a sand mixing output central shaft (149) and is positioned below the sand mixing output self-aligning bearing (153) and is in sealed rotary contact with the inner side wall of the sand mixing output lower gland (154), and a sand mixing output connecting seat (156) which is connected with the lower end of the sand mixing output central shaft (149) through a key and is used for connecting a rotor shaft.

5. The gear mechanism for the high-efficiency planetary sand mixer is characterized in that a sand mixing magnetic block (305) is arranged on a sand mixing transmission gear box body (291).

6. The gear mechanism for the high-efficiency planetary sand mixer is characterized in that a sand mixing manual gate valve (301) is arranged at the lower end of a sand mixing transmission gear box body (291).