CN114618991B

CN114618991B - Pouring process of marine propeller

Info

Publication number: CN114618991B
Application number: CN202210289611.7A
Authority: CN
Inventors: 王以军
Original assignee: Taizhou Jiaojiang Yonggu Ship Propeller Factory
Current assignee: Taizhou Jiaojiang Yonggu Ship Propeller Factory
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2023-07-25
Anticipated expiration: 2042-03-23
Also published as: CN114618991A

Abstract

The application relates to a casting process of a marine propeller, which comprises the following steps of: 1) Preparing a pouring cup; 2) Preparing a casting ladle; 3) Pouring operation; 4) The record, spraying device includes base, liquid reserve tank, spraying spare one and spraying spare two, has seted up in the liquid reserve tank and has held the chamber, still is equipped with the connecting pipe on the liquid reserve tank, is equipped with the air pump on the connecting pipe, is equipped with adjusting part on the base. Through in the pouring process, improve homogeneity and the continuity of alloy liquid pouring to seal the pouring cup through sealing paper, reduced the surface defect of screw, make the surface of screw smooth more, utilize spraying device spraying muddy water and graphite coating, need not to change spraying equipment or change the reagent of splendid attire in the spraying equipment, make the spraying different reagent more convenient, this application can be according to the size of waiting to spray the article, adjust the injection range of reagent, the reagent is extravagant, be favorable to practicing thrift the reagent, reduce the processing cost of screw, have energy-conserving effect.

Description

Pouring process of marine propeller

Technical Field

The application relates to the field of propeller processing, in particular to a casting process of a marine propeller.

Background

The propeller is a device for converting the rotation power of an engine into propulsion by rotating blades in water, is a main component for providing power for a ship body, and the quality of the propeller is directly related to the sailing performance of the ship.

The screw needs to cut action of rivers for a long time in water, when there is defect such as protruding on the screw surface, can lead to producing a large amount of cavitation when screw cutting the rivers, the blasting of cavitation easily makes the screw surface impaired, and then directly influences the quality of screw, consequently, reduces the processing defect on screw surface and is the research hotspot in screw preparation field.

Disclosure of Invention

In order to solve the problem that machining defects such as bulges exist on the surface of a propeller, the application provides a casting process of a marine propeller.

The casting process of the marine propeller provided by the application adopts the following technical scheme:

the casting process of the marine propeller comprises the following steps of:

1) Pouring cup preparation: the pouring cup is manufactured by a molding die, the capacity of the pouring cup is suitable for the pouring weight of products, the pouring cup is strictly forbidden to be made into a funnel shape, the new pouring cup enters a baking die along with a sand mold for baking, the old pouring cup is repaired and smooth, a spraying device is used for coating graphite paint and then is used for baking by a blast lamp, each product is assembled with the pouring cup before pouring, the pouring cup is strictly forbidden to be temporarily placed, the mouth of the pouring cup is covered with high-temperature-resistant sealing paper, and before pouring, the pouring cup is fully preheated by the blast lamp, and the preheating time is more than 5 minutes;

2) Preparing a casting ladle: the smelting span determines the type of a casting ladle and the tapping mode according to the smelting tonnage and the blank weight, the casting ladle preparation work is responsible for a special person for smelting span allocation, and a tilting mechanism, a lifting and a safety device of the used casting ladle are flexible and reliable, so that problems are discovered, and timely treated and reported;

the enamelling method of the new ladle comprises the following steps: firstly, building a layer of refractory bricks on the inner layer and the bottom of a casting ladle shell, coating slurry water by a spraying device, enamelling by a mixed enamel ladle material, wherein the enamel ladle material comprises 60-65% of quartz sand, 35-40% of clay and a proper amount of water, compacting by a wood hammer and smoothing, coating graphite paint by the spraying device, coating graphite paint on the inner layer and the bottom of the casting ladle shell by the spraying device (for casting ladle with the capacity less than or equal to 5t, directly enamelling by enamel ladle material without building refractory bricks), and directly building 20t casting ladle by refractory bricks;

when the old ladle is used for casting, the ladle is repaired firstly, hanging slag in the ladle is removed, the damaged part is repaired by the ladle material, and the graphite material is coated by a spraying device, and the work is completed one day before the furnace is opened;

baking: baking the newly-enameled ladle by firewood; baking the old casting ladle which is idle for a long time for more than 24 hours by using a firewood after repairing, baking the old casting ladle for more than 4 hours by using a firewood after repairing, and drying the new enamelled casting ladle before formally casting products by injecting a copper liquid as a material;

Baking the casting ladle on the day of furnace opening: fully baking the ladle by using dry firewood (the ladle starts one day in advance for 20 t), rotating the ladle to a horizontal position during baking, and controlling the temperature to keep the ladle dark red before heating the molten copper;

3) Pouring operation: adopting fine-particle graphite electrode particles to add molding sand prepared by mixing 4-5% of bentonite and 4-5% of water, using the graphite molding sand for manufacturing molding blocks, discharging an alloy liquid, carrying out in-package treatment and temperature detection according to a process, and casting products after passing the products, or returning the products to the furnace or casting ingots;

the scum is scraped off, a Kerr test block is poured, a sample is poured, the pouring station is quickly lifted, high-temperature-resistant sealing paper is pulled out during pouring, a smelting team should be assigned with a special command, a director takes charge of pouring ladle positioning, scum in the ladle is scraped off by a slag-stopping rake, the sequence of pouring and collecting ladle and casting blanks is completed, the same ladle of alloy liquid is generally poured into a large-medium-sized screw first, a small-sized screw is poured later, a pouring cup is quickly filled when pouring is started, if a pouring gate plug is used, the pouring plug is pulled up when the alloy liquid rises to a position which is higher than 2/3 of the pouring cup, the alloy liquid is uniform and continuous in the whole pouring process, and the alloy liquid in the pouring cup should be always full, and the pouring is strictly forbidden to flow in the middle course;

In the casting process, the molding is required to skim slag, when the cavity is full and rises to the height of 1/3-1/2 of the riser, the casting is stopped, once the casting is stopped, the casting is strictly forbidden to be carried out from the pouring cup, after the riser is full, the molding is covered with a heat-insulating covering agent added with a shrink-proof agent, and for a product filled with the riser by an auxiliary sprue, the casting is stopped by the auxiliary sprue at the first stage, and if the riser is supplemented at intervals, the covering agent is required to be covered in time;

4) Recording: the inspector records the pouring temperature, the pouring time, the pouring sequence and the pouring condition of each product in the whole pouring process;

the spraying device comprises a base, a liquid storage tank arranged on the base, a first spraying part and a second spraying part which are connected to the base in a sliding manner, two accommodating cavities are formed in the liquid storage tank, connecting pipes are further arranged on the liquid storage tank and correspond to the accommodating cavities one by one, one accommodating cavity corresponds to the connecting pipe and is communicated with the first spraying part, the other accommodating cavity corresponds to the second spraying part, an air pump is arranged on each connecting pipe, an adjusting component is arranged on the base, and the adjusting component drives the first spraying part to stretch out of or enter the base in a sliding manner and drives the second spraying part to stretch out of or enter the base in a sliding manner.

Through adopting above-mentioned technical scheme, in the pouring process, improve homogeneity and the continuity of alloy liquid pouring, reduce the inside cellular production of alloy liquid, and then reduced bellied formation in screw surface to seal the pouring cup through the sealing paper, reduced the condition that the foreign matter got into the pouring cup, further reduced the surface defect of screw, make the surface of screw more smooth and even, be favorable to reducing the wearing and tearing of screw during operation, and then help improving the navigation performance of boats and ships.

When spraying muddy water and graphite paint, can pack into two respectively and hold the intracavity with graphite paint and muddy water, drive spraying piece one or spraying piece two through adjusting part and slide and stretch out the base, then open the air pump, will hold graphite paint or muddy water in the intracavity and send spraying piece one or spraying piece two through the air pump and spray, need not to change spraying equipment or change the reagent of splendid attire in the spraying equipment for it is more convenient to spray different reagents.

Preferably, the adjusting assembly comprises a gear rotatably connected to the base, and a first rack and a second rack slidingly connected to the base, wherein the first rack and the second rack are respectively positioned on two opposite sides of the gear and meshed with the gear; the first spraying part is arranged on the first rack and is connected to the base through the first rack in a sliding manner, the second spraying part is arranged on the second rack and is connected to the base through the second rack in a sliding manner, and a positioning assembly for positioning is arranged on the gear.

Through adopting above-mentioned technical scheme, set up gear, rack one, rack two and locating component, gear rotation drives rack one and rack two and slides along opposite direction, and then drives spraying spare one or spraying spare two and stretch out the base and carry out spraying operation, can realize the relative positioning between spraying spare one and the spraying spare two through locating component locating gear for it is more convenient to remove spraying spare one and spraying spare two.

Preferably, the positioning assembly comprises a positioning block axially connected to the gear in a sliding manner and an elastic piece I arranged on the gear output shaft, the positioning block is located on the outer side of the base, a positioning groove is formed in the base, the positioning block is clamped into the positioning groove and positions the gear, and the elastic piece I is connected with the positioning block, so that the positioning block has a tendency of being clamped into the positioning groove.

Through adopting above-mentioned technical scheme, set up locating piece and elastic component one, when needs rotate the gear, remove the locating piece and break away from the constant head tank, rotate the locating piece again, can drive gear rotation, until gear rotation to suitable position and locating piece and constant head tank aim at, loosen the locating piece, the locating piece is blocked into the constant head tank under the effect of elastic component one, through locating piece butt in the inner wall of constant head tank, can realize the location of gear on the base, make the locating piece butt in the inner wall of constant head tank through elastic component one simultaneously, the condition that the locating piece breaks away from the constant head tank has been reduced, the stability of gear location on the base has been improved.

Preferably, each connecting pipe is communicated with an air pipe, the air pipe is positioned at one side of the air pump away from the liquid storage tank, the air pipe is used for connecting an air supply source, and each air pipe is provided with an air valve.

Through adopting above-mentioned technical scheme, when the reagent flows through the connecting pipe, control pneumatic valve ventilates in to the trachea, and gaseous entering connecting pipe is interior and then promotes the reagent blowout in the connecting pipe, realizes the atomizing of reagent, is favorable to the more even spraying of reagent on the article surface, has reduced the reagent drip on article surface, is favorable to reducing the reagent extravagant when improving the reagent spraying effect, has energy-conserving effect.

Preferably, the air pump is connected to the liquid storage tank, an elastic piece III is arranged between the liquid storage tank and the base, and the liquid storage tank is arranged on the base through the elastic piece III; the liquid storage tank is internally provided with a support frame, the support frames correspond to the accommodating cavities one by one, the support frames are located at bottoms corresponding to the accommodating cavities, rolling channels communicated with the accommodating cavities are formed in the support frames, the rolling channels surround the inner peripheral walls of the accommodating cavities, and heavy balls are movably connected in the rolling channels along the length directions of the rolling channels.

Through adopting above-mentioned technical scheme, when the air pump during operation, drive the liquid reserve tank and take place the vibration, and then make the heavy ball roll in the roll passageway along the length direction of roll passageway, the heavy ball roll and then stir the reagent that holds the intracavity, restrain and hold the reagent in the intracavity and take place to subside for the nature of spun reagent is more even, is favorable to improving the spraying effect of reagent.

Preferably, a connecting rope is arranged on the inner wall of the top of the accommodating cavity, and the connecting rope is connected with the heavy ball.

Through adopting above-mentioned technical scheme, when the air pump work drives the liquid reserve tank and shakes, under the circumstances that the reagent has taken place to subside, the material that takes place to subside can take place to move in the lower part that holds the chamber, the range of activity is less, and when heavy ball activity, be located the reagent that holds the chamber lower part and be stirred easily, the effect that the reagent that is located the chamber upper portion received is less, when the water level that holds the intracavity is higher, the material that takes place to subside is difficult to remove to holding the chamber upper portion, through setting up the connecting rope, when heavy ball activity, drive the connecting rope activity, produce the effect that is similar to the stirring stick, make the stirring to the reagent more abundant, be favorable to taking place the material mixture of subsidence more even.

Preferably, the first spraying part comprises a first sliding block connected to the base in a sliding manner, a first spraying pipe arranged on the first sliding block, and a first adjusting block rotationally connected to the first sliding block, the first sliding block is arranged on the first rack, the first spraying pipe is communicated with the first connecting pipe, and the first adjusting block is positioned at one end of the first sliding block extending out of the base; the first regulating block is provided with a plurality of spraying holes, the spraying holes are circumferentially distributed at intervals along the rotation axis of the first regulating block, the sizes of the spraying holes are different, the spraying holes are used for being communicated with the first spray pipe, the structure of the second spray part is identical to that of the first spray part, and the second spray part comprises a second slide block, a second spray pipe and a second regulating block.

Through adopting above-mentioned technical scheme, can be according to the size of waiting to spray the article, rotate regulating block one for the spraying hole and the spray tube one of suitable size communicate, can make the injection range of spraying hole spun reagent and waiting to spray the size adaptation of article, reduced the too big condition that causes the reagent to waste in a large number of reagent injection range, be favorable to practicing thrift the reagent, reduce the processing cost of screw, have energy-conserving effect.

Preferably, the spraying holes are uniformly distributed at intervals in the circumferential direction, the first sliding block is connected with a clamping ring in a sliding manner, the clamping ring is close to or far away from the first adjusting block in a sliding manner, a plurality of clamping blocks are uniformly arranged on the clamping ring at intervals in the circumferential direction, the number of the clamping blocks is the same as that of the spraying holes, a plurality of clamping grooves are formed in the first adjusting block, the clamping grooves correspond to the clamping rings one by one, and the clamping grooves are used for clamping the clamping rings; every all be equipped with the inclined plane on the fixture block, the inclined plane with distance between the snap ring is followed the direction of rotation of regulating block one is grow gradually, just the inclined plane butt in draw-in groove inner wall, still be equipped with elastic component two on the slider one, elastic component two support tightly in the snap ring makes the fixture block has the card to go into the trend of draw-in groove.

Through adopting above-mentioned technical scheme, when the injection scope of reagent needs to be adjusted, rotate regulating block one, regulating block one butt is in the inclined plane on the snap ring, promotes the snap ring to slide and keeps away from regulating block one, to spray pipe one with corresponding spraying hole alignment, at this moment, a plurality of fixture blocks align with corresponding draw-in groove, the fixture block clamps into the draw-in groove under the effect of elastic component two, realizes the relative positioning between regulating block one and the slider one, need not manual alignment spray pipe one and spraying hole for the injection scope of regulating reagent is more convenient.

Preferably, the base is provided with a first chute and a second chute, the first slider is connected in the first chute in a sliding manner, the second slider is connected in the second chute in a sliding manner, the base is hinged with a first liquid blocking piece and a second liquid blocking piece, the first liquid blocking piece is used for covering the notch of the first chute, and the second liquid blocking piece is used for covering the notch of the second chute.

Through adopting above-mentioned technical scheme, set up first and the fender liquid spare two, when slider one drove regulating block one and stretch out the base, spray coating spare two positions are located spout two, closes the notch of spout two through keeping off liquid spare two covers, has reduced the circumstances that spray coating spare one's reagent pollutes spray coating spare two, and same when slider two drove regulating block two and stretch out the base to pollution between the reagent has been reduced.

Preferably, the first liquid blocking part comprises a first liquid blocking part hinged on the base and a first extending part arranged on the first liquid blocking part, the first liquid blocking part covers the notch of the first chute, the first extending part is positioned at one side of the first liquid blocking part, which is close to the first chute, and the second liquid blocking part has the same structure as the first liquid blocking part;

the first sliding block is connected with a tight-propping block in a sliding manner, and an elastic connecting piece is further arranged on the first sliding block and is propped against the tight-propping block, so that the tight-propping block has a trend of being far away from the first sliding block;

The first liquid blocking part is provided with an elastic block, when the first adjusting block is positioned in the first sliding groove, the abutting block abuts against the first extending part, the first liquid blocking part drives the elastic block to abut against the base, and when the first adjusting block extends out of the first sliding groove, the abutting block abuts against the first liquid blocking part.

Through adopting above-mentioned technical scheme, when slider one drives regulating block one and slides and stretch out spout one, drive to support tight piece and support in fender liquid portion one, thereby keep off liquid portion one and regulating block one separate and fix a position fender liquid portion one, when reduced spraying reagent, keep off liquid portion one and take place upset influence reagent spun condition, when slider one drive regulating block one slide get into spout one, drive to support tight piece and remove and make to support tight piece and support in extension one, and then drive and keep off liquid portion one and take place the upset, make keep off liquid portion one and support in the base through the elastic block, and then seal the space between fender liquid portion one and the base, spray piece one and spray piece two pollution when having reduced spraying reagent, make spraying device's spraying effect better.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through improving the uniformity and the continuity of alloy liquid pouring in the pouring process, reduce the production of the inside bubble hole of alloy liquid, and seal the pouring cup through the sealing paper, reduce the foreign matter and get into the pouring cup, further reduced the surface defect of screw, make the surface of screw smooth more even, when spraying mud water and graphite coating, can pack into two and hold the intracavity respectively with graphite coating and mud, drive spraying piece one or spraying piece two through the adjusting component and slide and stretch out the base, turn on the air pump and spray, need not to change spraying equipment or change the reagent that holds in the spraying equipment, make spraying different reagent more convenient;

2. Through setting up heavy ball and connecting rope, when the air pump works, drive the liquid reserve tank and take place the vibration, and then make the heavy ball take place the roll along the length direction of roll channel, drive the connecting rope and remove, produce the effect that is similar to the stirring stick, make the stirring to reagent more abundant;

3. through setting up slider one, spray tube one and regulating block one, can rotate regulating block one according to the size of waiting to spray the article for the spraying hole and spray tube one intercommunication of suitable size can make the injection range of follow spraying hole spun reagent and wait the big adaptation of spraying article, has reduced the too big condition that causes the reagent to waste in a large number of reagent injection range, is favorable to practicing thrift the reagent, reduces the processing cost of screw, has energy-conserving effect.

Drawings

FIG. 1 is an overall schematic of an embodiment of the present application;

fig. 2 is a structural view of the embodiment of the present application cut away at the position of the liquid storage tank and the mounting seat, mainly showing the structure of the supporting frame;

FIG. 3 is a schematic view of a part of the structure of the embodiment of the present application, mainly showing the structure of the heavy ball;

FIG. 4 is a block diagram of an embodiment of the present application, partially cut away at a mounting base, showing primarily the structure of the adjustment assembly and the first spray member;

FIG. 5 is a schematic view of a part of the positioning block according to the embodiment of the present application;

FIG. 6 is an enlarged view of portion A of FIG. 5, mainly showing the structure of the positioning assembly and the positioning slot;

FIG. 7 is a schematic view of a part of an exploded view of an embodiment of the present application, mainly showing the structure of a latch and an elastic connection member;

fig. 8 is a schematic structural diagram of a portion of an embodiment of the present application, mainly showing the structure of the card slot.

Reference numerals illustrate: 1. a base; 11. a slide; 111. a roller; 112. an elastic member III; 12. a mounting base; 121. a first chute; 122. a second chute; 123. a positioning groove; 2. a liquid storage tank; 21. a receiving chamber; 3. a first spraying part; 31. a first sliding block; 311. a mounting groove; 32. a spray pipe I; 33. an adjusting block I; 331. a clamping groove; 4. a second spraying part; 41. a second slide block; 42. a spray pipe II; 43. an adjusting block II; 5. a vertical rod; 51. a support rod; 6. a bump; 61. the method comprises the steps of carrying out a first treatment on the surface of the A jack; 7. a connecting pipe; 71. an air pump; 72. an air pipe; 721. an air valve; 8. a support frame; 81. a rolling channel; 82. an endless track; 83. a through hole; 9. heavy ball; 91. a connecting rope; 10. an adjustment assembly; 101. a gear; 102. a first rack; 103. a second rack; 13. a positioning assembly; 131. a positioning block; 1311. a caulking groove; 132. an elastic piece I; 14. a limiting block; 141. a limit groove; 15. spraying holes; 16. a clasp; 161. a clamping block; 1611. an inclined plane; 17. an elastic piece II; 18. a first liquid blocking piece; 181. a first liquid blocking part; 182. an extension part I; 19. a liquid blocking piece II; 191. a liquid blocking part II; 192. extension part II; 20. an elastic block; 22. a tightening block; 23. an elastic connection member.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-8.

The embodiment of the application discloses a pouring process of a marine propeller. Referring to fig. 1, the casting process of the marine propeller includes the steps of:

1) Pouring cup preparation: the pouring cup is manufactured by a molding die, the capacity of the pouring cup is suitable for the pouring weight of products, the pouring cup is strictly forbidden to be made into a funnel shape, the new pouring cup enters a baking die along with a sand mold for baking, the old pouring cup is repaired and smooth, a spraying device is used for coating graphite paint and then is used for baking by a blast lamp, each product is assembled with the pouring cup before pouring, the pouring cup is strictly forbidden to be temporarily placed, the mouth of the pouring cup is covered with high-temperature-resistant sealing paper, the pouring cup adopts a pouring basin with a dam at the bottom, and the pouring cup is fully preheated by the blast lamp before pouring, and the preheating time is longer than 5 minutes;

baking the casting ladle on the day of furnace opening: fully baking the ladle by using dry firewood (the ladle starts one day in advance for 20 t), rotating the ladle to a horizontal position during baking, and controlling the temperature to keep the ladle dark red before heating the ladle to copper water by using solid alcohol;

In the casting process, the molding is required to remove slag, when the cavity is full and rises to the height of 1/3-1/2 of the riser, the casting is stopped, once the casting is stopped, the casting is strictly forbidden to be carried out from the pouring cup, after the riser is full, the molding is covered with a heat-insulating covering agent added with a shrink-proof agent, a heat-insulating riser sleeve is sleeved at the riser, and the inner wall of the heat-insulating riser sleeve is attached to the outline of the riser; the heat-insulating riser sleeve is formed by mixing and pressing 33 parts of quartz sand, 19 parts of vermiculite, 3 parts of potassium nitrate, 3 parts of calcium chloride, 5.0 parts of ferric oxide powder, 15 parts of graphite powder, 19 parts of aluminum powder, 1.0 part of magnesium powder and 6 parts of modified sodium silicate;

for products filled with the riser by the auxiliary gate, pouring to the first stage auxiliary gate to stop pouring, and if the riser is supplemented at intervals, covering the covering agent in time;

4) Recording: the inspector records the casting temperature, casting time, casting sequence and casting condition of each product in the whole casting process.

The graphite coating is formed by stirring glue A and glue B in a volume ratio of 7:1;

the A adhesive is prepared from graphite powder and water according to a volume ratio of 2:3 preparing graphite slurry according to the proportion, and standing for more than 24 hours for later use;

the adhesive B is prepared from adhesive wattle and water according to the volume ratio of 1:7, preparing the mixture into paste, standing for 24 hours for later use, and adding a preservative in summer.

Referring to fig. 1 and 2, the spraying device includes a base 1, a liquid storage tank 2, a first spraying part 3 and a second spraying part 4, the base 1 includes a sliding seat 11 and a mounting seat 12, a plurality of rollers 111 are rotatably connected to the sliding seat 11, the rollers 111 are all located below the sliding seat 11, the rotation axes of the rollers 111 are horizontally arranged, and the rotation axes of the rollers 111 are parallel to each other.

Referring to fig. 1, a vertical rod 5 is fixed on a slide 11, a supporting rod 51 is fixed at the upper end of the vertical rod 5, a bump 6 is fixed on a mounting seat 12, an insertion hole 61 is formed in the bump 6, the insertion hole 61 is penetrated by the supporting rod 51, in actual use, the supporting rod 51 is penetrated by the insertion hole 61, and the mounting seat 12 is limited by abutting the vertical rod 5 to the bump 6, so that the mounting seat 12 is hung on the vertical rod 5. In this embodiment, the strut 51 and the upright 5 are integrally provided.

Referring to fig. 1, the liquid storage tank 2 is located above the sliding seat 11, a plurality of elastic members three 112 are fixed on the upper end surface of the sliding seat 11, the elastic members three 112 are located below the liquid storage tank 2, the end portion, far away from the sliding seat 11, of the elastic members three 112 is fixedly connected with the liquid storage tank 2, the elastic members three 112 enable the liquid storage tank 2 to have a trend far away from the sliding seat 11, and the liquid storage tank 2 is mounted on the sliding seat 11 through the elastic members three 112. In this embodiment, the third elastic member 112 is a spring.

Referring to fig. 2, two accommodating cavities 21 are formed in the liquid storage tank 2, the two accommodating cavities 21 are arranged at intervals, connecting pipes 7 are further fixed on the liquid storage tank 2, the number and the positions of the connecting pipes 7 are in one-to-one correspondence with the number and the positions of the accommodating cavities 21, one end of each connecting pipe 7 is arranged in the liquid storage tank 2 in a penetrating mode and extends into the corresponding accommodating cavity 21, and the connecting pipes 7 are communicated with the corresponding accommodating cavity 21.

Referring to fig. 2 and 3, an air pump 71 is fixed to each connecting pipe 7, and the air pump 71 is fixedly connected to the outer side wall of the liquid storage tank 2. The liquid storage tank 2 internal fixation has support frame 8, the quantity and the position of support frame 8 and the quantity and the position one-to-one that hold the chamber 21, support frame 8 is located the bottom that corresponds and holds the chamber 21 and with the inner wall fixed connection who holds the chamber 21, rolling channel 81 has been seted up on the support frame 8, rolling channel 81 sets up around the inner peripheral wall that corresponds and hold the chamber 21, the ring road 82 has been seted up on the lateral wall of support frame 8, ring road 82 is located the upper end of support frame 8 and communicates rolling channel 81 and holds the chamber 21, and the length direction of ring road 82 sets up along rolling channel 81's length direction, still seted up a plurality of through-holes 83 on the lateral wall of support frame 8, a plurality of through-holes 83 all communicate rolling channel 81 and hold the chamber 21.

Referring to fig. 2 and 3, a heavy ball 9 is movably connected in the rolling passage 81, and a moving path of the heavy ball 9 is arranged along a length direction of the rolling passage 81. A connecting rope 91 is fixed on the top inner wall of the accommodating cavity 21, and one end, far away from the connection part of the connecting rope 91 and the inner wall of the accommodating cavity 21, of the connecting rope is penetrated in the loop 82 and fixedly connected with the heavy ball 9.

In actual use, when the air pump 71 works, the vibration generated by the air pump 71 drives the liquid storage tank 2 to vibrate, and under the action of the elastic element III 112, the vibration amplitude of the liquid storage tank 2 is enlarged, and the liquid storage tank 2 shakes when vibrating, so that the heavy balls 9 in the accommodating cavity 21 roll in the rolling channel 81 along the length direction of the rolling channel 81, the function similar to a stirring rod is generated, the reagent in the accommodating cavity 21 is stirred, the reagent in the accommodating cavity 21 is restrained from settling, and the settled reagent is uniformly mixed.

Referring to fig. 4, an adjusting assembly 10 is disposed on a mounting seat 12, the adjusting assembly 10 includes a gear 101, a first rack 102 and a second rack 103, the gear 101 is rotatably connected in the mounting seat 12, a rotation axis of the gear 101 is horizontally disposed, the first rack 102 and the second rack 103 are respectively located on two opposite sides of the gear 101, and the first rack 102 and the second rack 103 are engaged with the gear 101.

Referring to fig. 5 and 6, a positioning assembly 13 is disposed on the gear 101, the positioning assembly 13 is used for positioning the gear 101, the positioning assembly 13 includes a positioning block 131 and an elastic member 132, the positioning block 131 is located at the outer side of the mounting seat 12, a positioning slot 123 is formed in the outer side wall of the mounting seat 12, and the positioning slot 123 is used for clamping the positioning block 131.

Referring to fig. 6, a caulking groove 1311 is formed on an outer side wall of the positioning block 131, which is close to the mounting seat 12, one end of an output shaft of the gear 101 is penetrated through the mounting seat 12 and extends into the caulking groove 1311, a limiting groove 141 is formed on an inner wall of the caulking groove 1311, a limiting block 14 is fixed on an outer side wall of the output shaft of the gear 101, the limiting groove 141 is used for clamping the limiting block 14, and the limiting block 14 is abutted to the inner wall of the limiting groove 141, so that the positioning block 131 is limited, and relative rotation between the positioning block 131 and the output shaft of the gear 101 is restrained.

Referring to fig. 6, the first elastic member 132 is located in the caulking groove 1311, and opposite ends of the first elastic member 132 are fixedly connected with the output shaft of the gear 101 and the inner wall of the groove bottom of the caulking groove 1311, respectively, so that the positioning block 131 has a tendency to be snapped into the positioning groove 123. The positioning block 131 is slidingly connected to the output shaft of the gear 101 through the cooperation with the first elastic member 132, and the sliding direction of the positioning block 131 is parallel to the rotation axis of the gear 101.

In actual use, when the gear 101 needs to be rotated, the positioning block 131 is moved in a direction away from the mounting seat 12, so that the positioning block 131 is separated from the positioning groove 123, and then the gear 101 can be driven to rotate by rotating the positioning block 131 until the gear 101 rotates to a proper position and the positioning block 131 is aligned with the positioning groove 123, the positioning block 131 is released, the positioning block 131 is clamped into the positioning groove 123 under the action of the first elastic member 132, and the positioning of the gear 101 on the base 1 can be realized by abutting the positioning block 131 against the inner wall of the positioning groove 123.

Referring to fig. 4, a first chute 121 and a second chute 122 are formed on the outer sidewall of the mounting base 12, and the first chute 121 and the second chute 122 are located on the same side of the mounting base 12. The first spraying part 3 comprises a first sliding block 31, a first spraying pipe 32 and a first adjusting block 33, the first sliding block 31 is positioned in the first sliding groove 121, the first sliding block 31 is positioned on one side of the first rack 102 away from the gear 101 and fixedly connected with the first rack 102, the first sliding block 31 is slidingly connected in the first sliding groove 121 through the matching of the first rack 102 and the gear 101, and the first sliding block 31 slidingly extends out of or enters the notch of the first sliding groove 121.

Referring to fig. 2 and 4, the first nozzle 32 is inserted into the first slider 31 and fixedly connected with the first slider 31, the end of the first nozzle 32 far away from the notch of the first chute 121 is inserted out of the mounting seat 12 and fixedly connected with one of the connecting pipes 7, and the connecting pipe 7 is communicated with the first nozzle 32 and the corresponding accommodating cavity 21.

Referring to fig. 4 and 7, the first adjusting block 33 is located at one end of the first slider 31 near the notch of the first runner 121, the first adjusting block 33 is rotatably connected to the first slider 31, the rotation axis of the first adjusting block 33 is parallel to the sliding direction of the first slider 31, a plurality of spraying holes 15 are formed in the outer side wall of the first adjusting block 33 far away from the first slider 31, the plurality of spraying holes 15 are uniformly distributed at intervals along the rotation axis of the first adjusting block 33 in the circumferential direction, each spraying hole 15 penetrates through the first adjusting block 33 along the rotation axis of the first adjusting block 33, the plurality of spraying holes 15 are different in size, and the spraying holes 15 are used for communicating the first nozzle 32. It should be noted that the size of the end of the first nozzle 32 near the first adjustment block 33 is not smaller than the size of the largest spray hole 15 in the first adjustment block 33.

Referring to fig. 7, a first slider 31 is slidably connected with a snap ring 16, the snap ring 16 is sleeved on the outer side of the first slider 31, and the snap ring 16 slides close to or far from an adjusting block 33. A plurality of clamping blocks 161 are fixed on the clamping ring 16, the clamping blocks 161 are all located on one side, close to the first adjusting block 33, of the clamping ring 16, the number of the clamping blocks 161 is the same as that of the spraying holes 15, and the clamping blocks 161 are uniformly distributed at intervals along the rotation axis of the first adjusting block 33 in the circumferential direction.

Referring to fig. 7, an inclined surface 1611 is formed on an outer sidewall of each clamping block 161, the inclined surfaces 1611 are located on the same side of the corresponding clamping block 161 along the rotation direction of the first adjusting block 33, and the distance between each inclined surface 1611 and the clamping ring 16 gradually increases along the rotation direction of the first adjusting block 33.

Referring to fig. 7 and 8, a plurality of clamping grooves 331 are formed in the outer side wall of the first adjusting block 33, which is close to the clamping ring 16, the number and positions of the clamping grooves 331 are in one-to-one correspondence with the number of the clamping rings 16, the clamping grooves 331 are used for clamping corresponding clamping blocks 161, when the clamping blocks 161 are located in the corresponding clamping grooves 331, at this time, the inclined surface 1611 abuts against the inner wall of the corresponding clamping groove 331, and one of the spraying holes 15 is aligned with and communicated with the end part of the first spraying pipe 32.

Referring to fig. 7, the outer side wall of the first slider 31 is formed with a stepped surface which is provided around the outer periphery of the first slider 31 on the side of the snap ring 16 away from the first adjustment block 33. The first slider 31 is further provided with a plurality of second elastic pieces 17, the second elastic pieces 17 are located between the clamping ring 16 and the step surface and are uniformly distributed at intervals along the circumference of the first slider 31, the opposite ends of each second elastic piece 17 are fixedly connected with the clamping ring 16 and the step surface respectively, and the opposite ends of each elastic piece are abutted against the clamping ring 16 and the step surface respectively, so that the clamping block 161 has a trend of being clamped into the clamping groove 331. In this embodiment, the second elastic member 17 is a spring.

Referring to fig. 2 and 4, the structure of the spraying part two 4 is the same as that of the spraying part one 3, the spraying part two 4 comprises a sliding block two 41, a spray pipe two 42 and an adjusting block two 43, the sliding block two 41 is located on one side of the rack two 103 away from the gear 101 and fixedly connected with the rack two 103, the sliding block two 41 is slidably connected in the sliding groove two 122 through the matching of the rack two 103 and the gear 101, and the sliding block two 41 slidably extends out of or enters a notch of the sliding groove two 122.

Referring to fig. 2 and 4, the second nozzle 42 is disposed through the second slider 41 and fixedly connected with the second slider 41, the end of the second nozzle 42 far away from the notch of the second chute 122 is disposed through the mounting seat 12 and fixedly connected with the other connecting pipe 7, the connecting pipe 7 is communicated with the second nozzle 42 and the corresponding accommodating cavity 21, the second adjusting block 43 is disposed at one end of the second slider 41 near the notch of the second chute 122, and the second adjusting block 43 is rotatably connected to the second slider 41.

Referring to fig. 2, an air pipe 72 is fixed to each connecting pipe 7, the air pipe 72 is located on a side of the air pump 71 away from the liquid storage tank 2 and is communicated with the connecting pipe 7, the air pipe 72 is used for connecting an air supply source, and an air valve 721 is fixed to each air pipe 72.

When the reagent flows through the connecting pipe 7, the air valve 721 is controlled to ventilate the air pipe 72, and air enters the connecting pipe 7 to push the reagent in the connecting pipe 7 to be sprayed out of the spraying holes 15 through the first spraying pipe 32 or the second spraying pipe 42, so that the reagent can be atomized.

In practical use, the first adjusting block 33 can be rotated according to the size of an object to be sprayed, the first adjusting block 33 is abutted against the inclined surface 1611 on the clamping ring 16, the clamping ring 16 is pushed to slide away from the first adjusting block 33 until the spraying hole 15 with a proper size is communicated with the first spraying pipe 32, at this time, the plurality of clamping blocks 161 are aligned with the corresponding clamping grooves 331, the clamping blocks 161 are clamped into the clamping grooves 331 under the action of the second elastic piece 17, so that the relative positioning between the first adjusting block 33 and the first sliding block 31 is realized, the spraying range of the reagent sprayed from the first spraying pipe 32 can be adjusted, and the spraying range of the reagent sprayed from the second spraying pipe 42 can be adjusted.

Referring to fig. 4, the mounting base 12 is further hinged with a first liquid blocking member 18 and a second liquid blocking member 19, the first liquid blocking member 18 and the second liquid blocking member 19 are both located at one side of the mounting base 12 close to the notch of the first chute 121, the first liquid blocking member 18 includes a first liquid blocking portion 181 and an extension portion 182, the first liquid blocking portion 181 is located at the outer side of the mounting base 12 and hinged to the mounting base 12, the hinge axis of the first liquid blocking portion 181 is parallel to the rotation axis of the gear 101, the first liquid blocking portion 181 is used for covering the notch of the first chute 121, an elastic block 20 is fixed on the first liquid blocking portion 181, the elastic block 20 is located at one end of the first liquid blocking portion 181 far away from the hinge axis, and when the first liquid blocking portion 181 covers the notch of the first chute 121, the elastic block 20 is located at one side of the first liquid blocking portion 181 close to the mounting base 12. In this embodiment, the elastic block 20 is made of rubber.

Referring to fig. 4, the first extension portion 182 is fixedly connected to the first liquid blocking portion 181, and when the first liquid blocking portion 181 covers the notch of the first chute 121, the first extension portion 182 is located in the first liquid blocking portion 181 near the first chute 121.

Referring to fig. 7, a mounting groove 311 is formed on an outer side wall of the first slider 31 far away from the first rack 102, a tightening block 22 is slidably connected in the mounting groove 311, the tightening block 22 slides close to or far away from the first slider 31, an elastic connecting piece 23 is further fixed on the first slider 31, the elastic connecting piece 23 is located in the mounting groove 311, opposite ends of the elastic connecting piece 23 are respectively fixedly connected with a groove bottom inner wall of the mounting groove 311 and the tightening block 22, and opposite ends of the elastic connecting piece 23 are respectively tightened against the groove bottom inner wall of the mounting groove 311 and the tightening block 22, so that the tightening block 22 has a trend of being far away from the first slider 31. In this embodiment, the elastic connection member 23 is a spring.

When the first adjusting block 33 is located in the first sliding groove 121, the abutting block 22 abuts against the first extending portion 182, so that the first liquid blocking portion 181 drives the elastic block 20 to abut against the base 1, and when the first adjusting block 33 extends out of the first sliding groove 121, the abutting block 22 abuts against the first liquid blocking portion 181.

Referring to fig. 4, the structure of the second liquid blocking member 19 is the same as that of the first liquid blocking member 18, the second liquid blocking member 19 includes a second liquid blocking portion 191 and a second extending portion 192, the second liquid blocking portion 191 is located at the outer side of the mounting seat 12 and hinged to the mounting seat 12, the hinge axis of the second liquid blocking portion 191 is parallel to the rotation axis of the gear 101, the second liquid blocking portion 191 is used for covering the notch of the second chute 122, and the hinge axis of the second liquid blocking portion 191 is located at one end of the second liquid blocking portion 191 away from the first liquid blocking portion 181.

Referring to fig. 4, the second extension portion 192 is fixedly connected to the second liquid blocking portion 191, and when the second liquid blocking portion 191 covers the notch of the second chute 122, the second extension portion 192 is located at one end of the second liquid blocking portion 191 away from the first liquid blocking portion 181, and the second extension portion 192 is located at one side of the second liquid blocking portion 191 close to the second chute 122.

When the first slider 31 drives the first adjusting block 33 to slide and extend out of the first chute 121, the abutting block 22 is driven to abut against the first liquid blocking portion 181, so that the first liquid blocking portion 181 and the first adjusting block 33 are separated and the first liquid blocking portion 181 is positioned.

When the first slider 31 drives the first adjusting block 33 to slide into the first chute 121, the first abutting block 22 is driven to move so that the first abutting block 22 abuts against the first extending portion 182, and the first liquid blocking portion 181 is driven to turn over in a direction close to the notch of the first chute 121, so that the first liquid blocking portion 181 abuts against the first base 1 through the elastic block 20, and a gap between the first liquid blocking portion 181 and the first base 1 is sealed, and when the second slider 41 drives the second adjusting block 43 to slide out of the second chute 122 or slide into the second chute 122, the same is true.

The implementation principle of the pouring process of the marine propeller provided by the embodiment of the application is as follows:

through in the pouring process, improve homogeneity and the continuity of alloy liquid pouring to reduce the inside bubble's of alloy liquid production, and then reduced the bellied formation in screw surface, and sealed the pouring cup through the sealing paper, reduced the condition that the foreign matter got into the pouring cup, further reduced the surface defect of screw, make the surface of screw more smooth and even, be favorable to reducing the wearing and tearing of screw during operation, and then help improving the navigation performance of boats and ships.

When spraying the slurry water and the graphite paint, the graphite paint and the slurry water may be respectively charged into the two receiving chambers 21, and in this embodiment, the slurry water is charged into the receiving chamber 21 communicating with the first nozzle 32, and the graphite paint is charged into the receiving chamber 21 communicating with the second nozzle 42.

When slurry and water are sprayed, the positioning block 131 is moved to be separated from the positioning groove 123, then the positioning block 131 is rotated, the gear 101 is driven to rotate, the first rack 102 drives the first slider 31 to slide and stretch out of the first chute 121, meanwhile, the second rack 103 drives the second slider 41 to slide and enter the second chute 122, the positioning block 131 is positioned, then the air pump 71 is started to convey water in the containing cavity 21 to the connecting pipe 7, the air valve 721 is started to convey air into the air pipe 72, therefore, reagents in the connecting pipe 7 are sprayed out through the first spray pipe 32, then the mounting seat 12 is taken down from the vertical rod 5, the mounting seat 12 is moved to spray objects to be sprayed, and the degree of freedom of spraying operation is improved.

When the graphite paint is sprayed, the positioning block 131 is rotated, so that the rack two 103 drives the slide block two 41 to slide and stretch out of the slide groove two 122, meanwhile, the rack one 102 drives the slide block one 31 to slide into the slide groove one 121, the positioning block 131 is positioned, and then the corresponding air pump 71 and the air valve 721 are opened, so that the reagent in the corresponding connecting pipe 7 is sprayed out through the spray pipe two 42, and the spraying equipment does not need to be replaced or the reagent contained in the spraying equipment does not need to be replaced, so that different reagents are sprayed more conveniently.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A pouring process of a marine propeller is characterized in that: the method comprises the following steps:

the enamelling method of the new ladle comprises the following steps: firstly, building a layer of refractory bricks on the inner layer and the bottom of a casting ladle shell, coating slurry water by a spraying device, enamelling by a mixed enamel ladle material, wherein the enamel ladle material comprises 60-65% of quartz sand, 35-40% of clay and a proper amount of water, coating graphite paint by a spraying device after a wood hammer is used for compacting and smoothing, coating graphite paint on the inner layer and the bottom of the casting ladle shell by the spraying device, and directly building a 20t casting ladle by refractory bricks;

baking the casting ladle on the day of furnace opening: fully baking the casting ladle by using dry firewood, rotating the casting ladle to a horizontal position during baking, and controlling the temperature to keep the casting ladle dark red before heating the casting ladle to the molten copper;

the spraying device comprises a base (1), a liquid storage tank (2) arranged on the base (1), a first spraying part (3) and a second spraying part (4) which are connected onto the base (1) in a sliding manner, wherein two accommodating cavities (21) are formed in the liquid storage tank (2), connecting pipes (7) are further arranged on the liquid storage tank (2), the connecting pipes (7) and the accommodating cavities (21) are in one-to-one correspondence, one accommodating cavity (21) is communicated with the first spraying part (3) through the corresponding connecting pipe (7), the other accommodating cavity (21) is communicated with the second spraying part (4) through the corresponding connecting pipe (7), an air pump (71) is arranged on each connecting pipe (7), an adjusting component (10) is arranged on the base (1), and the adjusting component (10) drives the first spraying part (3) to slide out of or enter the base (1) and drives the second spraying part (4) to slide out of or enter the base (1);

The adjusting assembly (10) comprises a gear (101) rotatably connected to the base (1), a first rack (102) and a second rack (103) slidingly connected to the base (1), wherein the first rack (102) and the second rack (103) are respectively positioned on two opposite sides of the gear (101) and meshed with the gear (101);

the first spraying part (3) is arranged on the first rack (102) and is connected to the base (1) in a sliding manner through the first rack (102), the second spraying part (4) is arranged on the second rack (103) and is connected to the base (1) in a sliding manner through the second rack (103), a positioning component (13) for positioning is arranged on the gear (101), the positioning component (13) comprises a positioning block (131) which is connected to the gear (101) in an axial sliding manner and an elastic part I (132) which is arranged on an output shaft of the gear (101), the positioning block (131) is positioned on the outer side of the base (1), a positioning groove (123) is formed in the base (1), the positioning block (131) is clamped in the positioning groove (123) and is positioned on the gear (101), and the elastic part I (132) is connected with the positioning block (131) so that the positioning block (131) has a trend of being clamped in the positioning block (123);

The first spraying part (3) comprises a first sliding block (31) connected to the base (1) in a sliding manner, a first spraying pipe (32) arranged on the first sliding block (31) and a first adjusting block (33) rotatably connected to the first sliding block (31), the first sliding block (31) is arranged on the first rack (102), the first spraying pipe (32) is communicated with the connecting pipe (7), and the first adjusting block (33) is positioned at one end of the first sliding block (31) extending out of the base (1);

offer a plurality of holes (15) that spray on regulating block one (33), a plurality of spray hole (15) are followed the axis of rotation of regulating block one (33) is circumference interval distribution, a plurality of the size of spraying hole (15) is different, spray hole (15) are used for the intercommunication spray tube one (32), the structure of spraying spare two (4) with the structure of spraying spare one (3) is the same, spraying spare two (4) include slider two (41), spray tube two (42) and regulating block two (43).

2. The casting process of the marine propeller according to claim 1, wherein: each connecting pipe (7) is communicated with an air pipe (72), the air pipes (72) are located on one side, away from the liquid storage tank (2), of the air pump (71), the air pipes (72) are used for being connected with an air supply source, and each air pipe (72) is provided with an air valve (721).

3. The casting process of the marine propeller according to claim 2, wherein: the air pump (71) is connected to the liquid storage tank (2), an elastic piece III (112) is arranged between the liquid storage tank (2) and the base (1), and the liquid storage tank (2) is arranged on the base (1) through the elastic piece III (112);

be equipped with support frame (8) in liquid reserve tank (2), support frame (8) with hold chamber (21) one-to-one, support frame (8) are located to correspond hold the bottom of chamber (21), set up on support frame (8) with hold rolling channel (81) of chamber (21) intercommunication, rolling channel (81) are around hold the inner peripheral wall setting of chamber (21), along its length direction swing joint in rolling channel (81) have heavy ball (9).

4. A casting process of a marine propeller according to claim 3, wherein: the top inner wall of the accommodating cavity (21) is provided with a connecting rope (91), and the connecting rope (91) is connected with the heavy ball (9).

5. The casting process of the marine propeller according to claim 4, wherein: the spraying holes (15) are uniformly distributed at intervals in the circumferential direction, clamping rings (16) are connected to the first sliding block (31) in a sliding mode, the clamping rings (16) are close to or far away from the first adjusting block (33) in a sliding mode, a plurality of clamping blocks (161) are uniformly arranged on the clamping rings (16) at intervals in the circumferential direction, the number of the clamping blocks (161) is the same as that of the spraying holes (15), a plurality of clamping grooves (331) are formed in the first adjusting block (33), the clamping grooves (331) correspond to the clamping rings (16) one by one, and the clamping grooves (331) are used for clamping the clamping rings (16);

Every all be equipped with inclined plane (1611) on fixture block (161), inclined plane (1611) with distance between snap ring (16) is followed the direction of rotation of regulating block one (33) grow gradually, just inclined plane (1611) butt in draw-in groove (331) inner wall, still be equipped with elastic component two (17) on slider one (31), elastic component two (17) butt in snap ring (16) make fixture block (161) have the card and go into the trend of draw-in groove (331).

6. The casting process of the marine propeller according to claim 1, wherein: the base (1) is provided with a first chute (121) and a second chute (122), the first slider (31) is connected in the first chute (121) in a sliding mode, the second slider (41) is connected in the second chute (122) in a sliding mode, the base (1) is hinged with a first liquid blocking part (18) and a second liquid blocking part (19), the first liquid blocking part (18) is used for covering a notch of the first chute (121), and the second liquid blocking part (19) is used for covering a notch of the second chute (122).

7. The casting process of the marine propeller according to claim 6, wherein: the first liquid blocking part (18) comprises a first liquid blocking part (181) hinged to the base (1) and a first extending part (182) arranged on the first liquid blocking part, the first liquid blocking part (181) covers the notch of the first chute (121), the first extending part (182) is positioned on one side, close to the first chute (121), of the first liquid blocking part (181), and the second liquid blocking part (19) has the same structure as the first liquid blocking part (18);

The first sliding block (31) is slidably connected with a tight supporting block (22), the first sliding block (31) is also provided with an elastic connecting piece (23), and the elastic connecting piece (23) is tightly supported on the tight supporting block (22) so that the tight supporting block (22) has a trend of being far away from the first sliding block (31);

be equipped with elastic block (20) on fender liquid portion one (181), work as regulating block one (33) is located in spout one (121), support tight piece (22) support tightly in extension one (182), fender liquid portion one (181) drive elastic block (20) support tightly in base (1), work as regulating block one (33) stretches out spout one (121), support tight piece (22) support tightly in fender liquid portion one (181).