CN116061099A - Bean gravel pump millstone structure and production process - Google Patents
Bean gravel pump millstone structure and production process Download PDFInfo
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- CN116061099A CN116061099A CN202310319753.8A CN202310319753A CN116061099A CN 116061099 A CN116061099 A CN 116061099A CN 202310319753 A CN202310319753 A CN 202310319753A CN 116061099 A CN116061099 A CN 116061099A
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- disc
- millstone
- rubber disc
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- rubber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/009—Tools not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/14—Zonally-graded wheels; Composite wheels comprising different abrasives
Abstract
The invention discloses a structure and a production process of a bean gravel pump millstone, which solve the problem of excessively rapid wear of the bean gravel pump millstone in the prior art. The invention relates to a bean gravel pump millstone structure, which comprises an upper millstone and a lower millstone, wherein a feed inlet is arranged on the upper millstone, and a discharge outlet is arranged on the lower millstone; the inside of the upper millstone and/or the lower millstone is/are provided with grease injection holes which are communicated with grease lubrication holes arranged on the working surface of the upper millstone and/or the lower millstone; the upper millstone and the lower millstone are both composite millstones, and the composite millstone is preferably a composite millstone of steel plates, rubber and ceramics. The upper millstone and the lower millstone are formed by embedding materials such as steel plates, polyurethane rubber and ceramics, so that the problems of millstone abrasion, board burning and the like of the bean gravel pump during working can be effectively solved, the wear resistance and the mechanical strength of the millstone are improved, and the service life of the millstone is prolonged.
Description
Technical Field
The invention relates to the technical field of bean gravel pump millstone, in particular to a bean gravel pump millstone structure and a production process.
Background
The filling behind the tunnel wall is the key step of tunnel construction safety guarantee, and current filler is divided into mortar, bean gravel etc. bean gravel is as the main material of section of jurisdiction wall thickness backfill construction such as TBM, and in the work progress, upper and lower mill is as the main part of bean gravel pump, and upper and lower mill is in the course of the work, and the dry friction that produces with bean gravel relative motion is great, leads to appearing phenomena such as local dry grinding, scraper blade in the course of the work, appears friction damage etc. easily, influences life, is difficult to ensure the efficiency of construction.
With the development and progress of science and technology, the grinding disc is also continuously improved and optimized, and a plurality of rubber grinding discs made of composite materials are developed, for example, chinese patent with the application number of 98216511.0 discloses a novel rubber sealing plate for a rotor type concrete sprayer, and the novel rubber sealing plate has the advantages of convenience in maintenance, low cost and the like although wear-resistant rubber is used as a main material for being assembled with a bottom plate in a split mode, but still has the technical problems of dry grinding, poor high temperature resistance, uneven lubrication and the like, and cannot effectively solve the problem of excessively rapid abrasion during grinding disc operation, so the novel rubber sealing plate is not popularized and used in the field of engineering machinery. Therefore, a novel upper and lower wear-resistant disc matched with the bean gravel pump is needed to be designed.
Disclosure of Invention
Aiming at the defects in the background technology, the invention provides a structure and a production process of a bean gravel pump millstone, which solve the problem of excessively rapid wear of the bean gravel pump millstone in the prior art.
The technical scheme of the invention is realized as follows: the bean gravel pump millstone structure comprises an upper millstone and a lower millstone, wherein a feed inlet is formed in the upper millstone, and a discharge outlet is formed in the lower millstone; the inside of the upper millstone and/or the lower millstone is/are provided with grease injection holes which are communicated with grease lubrication holes arranged on the working surface of the upper millstone and/or the lower millstone; the upper millstone and the lower millstone are both composite millstones. As a preferable scheme, the upper millstone and the lower millstone are both composite millstones of steel plates, rubber and ceramics.
Further, go up the mill and include steel welt and last rubber dish, go up the rubber dish and fix on last steel welt, go up the last ceramic mill board that inlays of rubber dish, go up the surface of ceramic mill board and go up the surface of rubber dish and flush, form the working face of last mill.
The upper rubber plate is a polyurethane rubber plate, the outer edge of the upper rubber plate is flush with the outer edge of the upper steel lining plate, and an integrally formed upper fixing flange is arranged in the center of the upper steel lining plate. Preferably, at least one grease injection hole is arranged in the upper rubber disc along the radial direction, and the grease injection hole is communicated with at least one corresponding grease lubrication hole.
Further, the upper grinding disc is also provided with a compressed air inlet, a pressure relief opening and a standby pressure relief opening. The compressed air inlet, the pressure relief opening, the standby pressure relief opening and the feeding opening are respectively positioned in four quadrants.
Further, lower mill includes steel welt and lower rubber dish down, and lower rubber dish is fixed on steel welt down, inlays on the lower rubber dish and is equipped with down ceramic mill board, and the surface of lower ceramic mill board flushes with the surface of lower rubber dish, forms the working face of lower mill.
The lower rubber disc is a polyurethane rubber disc, the outer edge of the lower rubber disc is flush with the outer edge of the lower steel lining plate, and the center of the lower steel lining plate is provided with an integrally formed lower fixing flange. Preferably, at least one grease injection hole is arranged in the lower rubber disc along the radial direction, and the grease injection hole is communicated with at least one corresponding grease lubrication hole.
The production process of the bean gravel pump millstone structure comprises the following steps:
s1: manufacturing an upper casting tray with the same structure size as the upper steel lining plate, and manufacturing a lower casting tray with the same structure size as the lower steel lining plate; annular grooves are formed in the upper casting plate and the lower casting plate;
s2: the upper casting disc and the lower casting disc are respectively prevented from being in corresponding prefabricated moulds, a casting cavity of an upper rubber disc is formed between the upper casting disc and the corresponding prefabricated mould, and a casting cavity of a lower rubber disc is formed between the corresponding prefabricated moulds of the lower casting disc;
s3: filling the openings on the upper casting tray and the lower casting tray with cover bodies;
s4: heating the rubber casting material prepared in advance to a certain temperature to melt the rubber casting material into jelly;
s5: uniformly injecting the jelly in the step S4 into a casting cavity, slightly pressing the mold to tightly adhere the jelly to an upper casting plate and a lower casting plate and removing bubbles;
s6: after the jelly in the casting cavity is cooled and solidified, forming a corresponding prefabricated upper rubber disc and a corresponding prefabricated lower rubber disc, and then removing the prefabricated upper rubber disc and the prefabricated lower rubber disc from the corresponding upper casting disc and the corresponding lower casting disc;
s7: performing rough machining on the prefabricated upper rubber disc and the prefabricated lower rubber disc, and treating burrs and convex objects on the surfaces of the prefabricated upper rubber disc and the prefabricated lower rubber disc;
s8: carrying out wear-resisting and pressure-resisting tests on the treated prefabricated upper rubber disc and the prefabricated lower rubber disc to determine whether the prefabricated upper rubber disc and the prefabricated lower rubber disc have good mechanical properties;
s9: polishing the prefabricated upper rubber disc and the prefabricated lower rubber disc with good mechanical properties to enable the prefabricated upper rubber disc and the prefabricated lower rubber disc to be qualified;
s10: installing the upper rubber disc in the step S9 on an upper steel lining plate, and embedding a ceramic grinding plate into the upper rubber disc to form an upper grinding disc; similarly, the lower rubber disc in step S9 is mounted on the lower steel lining plate, and the ceramic grinding plate is embedded into the lower rubber disc to form a lower grinding disc.
The beneficial effects of the invention are as follows: 1. the upper millstone and the lower millstone are formed by embedding materials such as steel plates, polyurethane rubber and ceramics, so that the problems of millstone abrasion, board burning and the like of the bean gravel pump during working can be effectively solved, the wear resistance and the mechanical strength of the millstone are improved, and the service life of the millstone is prolonged. Besides, the invention effectively reduces the consumption of noble materials such as ceramics, facilitates the replacement of the ceramic wear-resistant plate and reduces the cost.
2. The side surfaces of the upper millstone and the lower millstone are provided with the grease injection holes, grease can be injected into the contact surface of the millstone to form a lubrication sealing ring, the lubrication sealing ring has the effect of lubrication and cooling in the operation process, the millstone is prevented from dry grinding and the like, and the millstone is protected to a certain extent.
3. The abrasion-resistant rubber millstone and the abrasion-resistant steel lining plate are combined, and the millstone processing technology with stable pressure resistance is provided, so that the polyurethane rubber millstone is applied to the industrial carrying for the first time, and the abrasion resistance and the mechanical strength of the millstone are improved. In addition, the polyurethane rubber millstone uses the casting technology for the first time, and the cooperation upper and lower steel casting dish casts in the polyurethane millstone that just the welt agrees with, and casting dish integral material is the steel sheet, has offered the same hole site of steel welt and grease pipeline structurally, and has annular groove on the casting dish, ensures that the installation can not appear the problem after the casting is accomplished, and mechanical strength and the toughness of mill will promote by a wide margin after the integral type casting.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings that are required for the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 is a schematic diagram of the structure of the upper grinding disc of the invention.
Fig. 2 is a view from A-A in fig. 1.
Fig. 3 is a view in the direction B-B of fig. 1.
Fig. 4 is a schematic view of the structure of the lower grinding disc.
Fig. 5 is a view in the direction D-D of fig. 4.
Fig. 6 is a schematic front view of the upper casting tray.
Fig. 7 is a schematic side view of the upper casting tray.
Fig. 8 is a schematic front view of the lower casting tray.
Fig. 9 is a schematic side view of the lower casting tray.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
Embodiment 1, a bean gravel pump mill structure, including last mill 1 and lower mill 2, go up mill 1 and lower mill 2 and be compound mill, and go up mill 1 and lower mill 2 size and thickness basically the same. In this embodiment, the upper grinding disc 1 and the lower grinding disc 2 are preferably composite grinding discs of steel plates, rubber and ceramics. The composite millstone is firstly carried and applied in the industry, so that the abrasion resistance and the mechanical strength are greatly improved, and the friction application upgrading of a product from a single two-phase product to a three-phase product is realized; the abrasive resistance of the grinding disc is improved. In the embodiment, a feed inlet 3 is arranged on an upper grinding disc 1, a discharge outlet 4 is arranged on a lower grinding disc 2, unground filler enters between the upper grinding disc and the lower grinding disc from the feed inlet and is subjected to pressure grinding treatment on the working surface of the unground filler, and the treated filler flows out from the discharge outlet. As shown in fig. 3, the inside of the upper grinding disc 1 and/or the lower grinding disc 2 is provided with a grease injection hole 5, and the grease injection hole 5 is communicated with a grease lubrication hole 6 arranged on the working surface of the upper grinding disc 1 and/or the lower grinding disc 2; the grease injection hole 5 and the grease lubrication hole 6 form a lubrication channel, and lubricating grease can enter a working surface between the upper millstone and the lower millstone through the lubrication channel to lubricate and cool, prevent dry milling and the like of the millstone, and have a certain protection effect on the millstone. In the actual construction process, the lubrication channels can be arranged in the upper millstone 1, the lubrication channels can be arranged in the lower millstone 2 only, and the lubrication channels can be arranged in both the upper millstone and the lower millstone, so that the lubrication channels are obviously arranged in both the upper millstone and the lower millstone, and the lubrication and cooling effects are more. The lubricating mode is suitable for intermittent and intermittent lubrication of the two-phase rotary friction pair, so that the service life of the product is doubled compared with that of the same-grade product.
The upper millstone and the lower millstone are formed by embedding and combining three materials such as steel plates, ceramics, polyurethane rubber and the like, so that the utilization rate of expensive materials is saved, the millstone has the characteristics of high strength, high temperature resistance, earthquake resistance and the like, the side surface of the millstone is provided with the grease injection hole which is communicated with the millstone lubrication hole, the annular lubrication hole is formed in the contact surface, the phenomena of dry grinding and scraping plates in the operational state of the millstone are solved, the service life of the millstone is greatly prolonged, and rigid deformation cannot occur in the use process.
As shown in fig. 1 and 2, in this embodiment, the upper grinding disc 1 includes an upper steel lining plate 1-1 and an upper rubber disc 1-2, and the upper rubber disc 1-2 can cover the upper steel lining plate. The upper rubber plate 1-2 is fixed on the upper steel lining plate 1-1 in a cementing way. An upper ceramic grinding plate 1-3 is embedded on the upper rubber disc 1-2, and the outer surface of the upper ceramic grinding plate 1-3 is flush with the outer surface of the upper rubber disc 1-2 to form a working surface of the upper grinding disc 1. The ceramic grinding plate can be made of ceramic plates with the thickness of 8-15mm, abrasive particles with uniform sizes are fully distributed, and the ceramic particles with consistent concave-convex shapes grind particles, so that the grinding efficiency is improved. The ceramic is used as a main material of the grinding plate, so that the grinding plate has a very strong compression resistance effect, the ultrahigh melting point also enables the grinding plate to keep stability at high temperature, expansion cannot occur at high temperature, heat transfer cannot occur, and the rubber backing plate is well protected. In addition, the chemical characteristics of the ceramic material also enable the grinding disc not to be corroded in the using process, and the service life of the grinding disc is prolonged.
As a preferable scheme, the upper rubber disc 1-2 is a polyurethane rubber disc, and the use of polyurethane rubber not only improves the compression resistance of the grinding disc, but also has extremely high strength, wear resistance and excellent elasticity, can transmit pressure in the use process and can not generate stress deformation, and the grinding disc is formed by using a casting process, so that the mechanical property is greatly improved, and the use requirement of the grinding plate can be met. The polyurethane rubber disk is used as an auxiliary structure and is inlaid and adhered on the steel lining plate, and holes with the same size as the steel lining plate are formed in the polyurethane rubber disk. The outer edge of the upper rubber disc 1-2 is flush with the outer edge of the upper steel lining plate 1-1, and an integrally formed upper fixing flange 1-4 is arranged in the center of the upper steel lining plate 1-1. The upper steel lining plate is of a millstone main structure, a fixing flange is arranged at the center of the upper steel lining plate, and the upper millstone can be connected with the main shaft through the fixing flange to achieve the functions of fixing and power transmission. At least one grease injection hole 5 is arranged in the upper rubber disc 1-2 along the radial direction, and the grease injection hole 5 is communicated with at least one corresponding grease lubrication hole 6. Preferably, 2 grease or a plurality of injection holes and grease injection holes 5 are formed in the side face of the upper rubber disc, the grease injection holes 5 are communicated with a plurality of grease lubrication holes 6 on the disc face, and the lubrication holes are annularly distributed along the radius direction of the disc face, so that grease can be uniformly distributed, a lubrication effect is achieved, an annular grease sealing ring is formed, and the sealing performance in the grinding treatment process is improved; and the lubricating and cooling effects are achieved in the operation process, dry grinding and the like of the grinding disc are prevented, and the grinding disc is protected to a certain extent.
In addition, in this embodiment, the upper grinding disc 1 is further provided with a compressed air inlet 1-5, a pressure relief port 1-6 and a standby pressure relief port 1-7. Preferably, the compressed air inlet 1-5, the pressure relief port 1-6, the standby pressure relief port 1-7 and the feed port 3 are respectively positioned in four quadrants. In the use, pressurize through compressed air import department for the gravel has certain kinetic energy can realize with the relative motion of mill, thereby produces the effect of polishing: the pressure relief opening is used for discharging a part of high-pressure air to reduce the kinetic energy of the bean gravel before the bean gravel enters the feed opening, so that the bean gravel is prevented from being excessively impacted when passing through the feed opening.
As shown in fig. 4 and 5, in embodiment 2, on the basis of embodiment 1, the lower grinding disc 2 includes a lower steel lining plate 2-1 and a lower rubber disc 2-2, and the lower rubber disc 2-2 is fixed on the lower steel lining plate 2-1, and the lower rubber disc can be fixed by cementing. A lower ceramic grinding plate 2-3 is embedded on the lower rubber disc 2-2, and the outer surface of the lower ceramic grinding plate 2-3 is flush with the outer surface of the lower rubber disc 2-2 to form a working surface of the lower grinding disc 2; the steel lining plate is mainly used as a base to fix and bond the polyurethane rubber backing plate, and the ceramic grinding plate is inlaid on the steel lining plate, so that the effective area can be fully utilized, the consumption of ceramic materials is reduced, and the cost is saved. The lower ceramic grinding plate can use ceramic plates with the thickness of 8-15mm, and is full of abrasive particles with uniform size, and the ceramic particles with consistent concave-convex shapes grind particles, so that the grinding efficiency is improved. The ceramic is used as a main material of the grinding plate, so that the grinding plate has a very strong compression resistance effect, the ultrahigh melting point also enables the grinding plate to keep stability at high temperature, expansion cannot occur at high temperature, heat transfer cannot occur, and the rubber backing plate is well protected. In addition, the chemical characteristics of the ceramic material also enable the grinding disc not to be corroded in the using process, and the service life of the grinding disc is prolonged.
In this embodiment, the lower rubber disc 2-2 is a polyurethane rubber disc, and the use of polyurethane rubber not only improves the compression resistance of the grinding disc, but also has extremely high strength, wear resistance and excellent elasticity, and can transmit pressure and avoid stress deformation in the use process. The outer edge of the lower rubber disc 2-2 is flush with the outer edge of the lower steel lining plate 2-1, and the center of the lower steel lining plate 2-1 is provided with an integrally formed lower fixing flange 2-4. The lower grinding disc can be connected with the main shaft through the fixing flange, so that the functions of fixing and power transmission are achieved.
The polyurethane rubber disk is used as an auxiliary structure and is inlaid and adhered on the steel lining plate, and holes with the same size as the steel lining plate are formed in the polyurethane rubber disk. At least one grease injection hole 5 is arranged in the lower rubber disc 2-2 along the radial direction, and the grease injection hole 5 is communicated with at least one corresponding grease lubrication hole 6. Preferably, 2 grease or a plurality of injection holes and grease injection holes 5 are formed in the side face of the lower rubber disc, the grease injection holes 5 are communicated with a plurality of grease lubrication holes 6 on the disc face, and the lubrication holes are annularly distributed along the radius direction of the disc face, so that grease can be uniformly distributed, a lubrication effect is achieved, a plurality of annular grease sealing rings are formed by combining an upper millstone, and the tightness in the milling treatment process is improved; and the lubricating and cooling effects are achieved in the operation process, dry grinding and the like of the grinding disc are prevented, and the grinding disc is protected to a certain extent.
Example 3 a process for producing a structure of a pump disc for a bean gravel as described in example 2, comprising the following steps:
s1: as shown in fig. 6 and 7, an upper casting plate with the same structural size as the upper steel lining plate 1-1 is manufactured, and as shown in fig. 8 and 9, a lower casting plate with the same structural size as the lower steel lining plate 2-1 is manufactured; annular grooves are formed in the upper casting plate and the lower casting plate. The casting disc is provided with the annular groove, the casting disc can be matched with the grinding lining plate after casting, the problem of installation after casting is finished is avoided, and the mechanical strength and toughness of the integrated casting rear grinding disc are greatly improved.
S2: and respectively preventing the upper casting disc and the lower casting disc from forming an annular surrounding belt in the corresponding prefabricated moulds by using mild steel, so that a casting cavity of the upper rubber disc is formed between the upper casting disc and the corresponding prefabricated mould, and a casting cavity of the lower rubber disc is formed between the corresponding prefabricated moulds of the lower casting disc.
S3: filling the openings on the upper casting tray and the lower casting tray with cover bodies; ensure that the cast rubber plate is provided with an opening consistent with the upper steel plate and the lower steel plate. The filled cover is required to be resistant to high temperatures and not to deform.
S4: heating the rubber casting material prepared in advance to a certain temperature to melt the rubber casting material into jelly; the rubber casting material can be polyurethane rubber, nitrile rubber, wear-resistant rubber and the like.
S5: and (3) uniformly injecting the jelly in the step (S4) into a casting cavity, tightly bonding the jelly with an upper casting plate and a lower casting plate by using a slight pressing die, removing bubbles, and ensuring casting quality.
S6: after the jelly in the casting cavity is cooled and solidified, forming a corresponding prefabricated upper rubber disc and a corresponding prefabricated lower rubber disc, and then removing the prefabricated upper rubber disc and the prefabricated lower rubber disc from the corresponding upper casting disc and the corresponding lower casting disc; the prefabricated upper rubber disc is provided with a compressed air inlet, a pressure relief opening, a standby pressure relief opening, a blanking opening and a rubber disc body of a lubrication channel; and the prefabricated lower rubber disk is a rubber disk body with a feed inlet and a lubrication channel.
S7: and (3) performing rough machining on the prefabricated upper rubber disc and the prefabricated lower rubber disc, and treating burrs and protruding objects on the surfaces of the prefabricated upper rubber disc and the prefabricated lower rubber disc.
S8: and carrying out wear-resisting and pressure-resisting tests on the treated prefabricated upper rubber disc and the prefabricated lower rubber disc to determine whether the prefabricated upper rubber disc and the prefabricated lower rubber disc have good mechanical properties.
S9: and polishing the prefabricated upper rubber disc and the prefabricated lower rubber disc with good mechanical properties to make the prefabricated upper rubber disc and the prefabricated lower rubber disc qualified.
S10: installing the upper rubber disc in the step S9 on the upper steel lining plate 1-1, and embedding a ceramic grinding plate into the upper rubber disc to form an upper grinding disc 1; similarly, the lower rubber disc in step S9 is mounted on the lower steel liner plate 2-1, and a ceramic grinding plate is embedded in the lower rubber disc to form the lower grinding disc 2.
According to the scheme, materials such as polyurethane rubber and ceramic are added on the basis of the steel lining plate, and a casting process is used, so that the performances of compression resistance, high temperature resistance, wear resistance, corrosion resistance and the like of the millstone are greatly improved, the problems of deformation, corrosion, board burning and the like of a conventional millstone in the using process are solved, the service life of the millstone is prolonged, and the working efficiency is improved. The grinding disc manufactured by the process has excellent mechanical strength, and compared with the conventional grinding disc, the toughness of the grinding disc is greatly improved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (11)
1. The utility model provides a beans pump mill structure which characterized in that: comprises an upper millstone (1) and a lower millstone (2), wherein a feed inlet (3) is arranged on the upper millstone (1), and a discharge outlet (4) is arranged on the lower millstone (2); the inside of the upper grinding disc (1) and/or the lower grinding disc (2) is provided with a grease injection hole (5), and the grease injection hole (5) is communicated with a grease lubrication hole (6) arranged on the working surface of the upper grinding disc (1) and/or the lower grinding disc (2); the upper millstone (1) and the lower millstone (2) are both composite millstones.
2. The structure of the bean gravel pump millstone of claim 1, wherein: the upper millstone (1) and the lower millstone (2) are both composite millstones of steel plates, rubber and ceramics.
3. The structure of a bean gravel pump millstone according to claim 1 or 2, characterized in that: the upper grinding disc (1) comprises an upper steel lining plate (1-1) and an upper rubber disc (1-2), the upper rubber disc (1-2) is fixed on the upper steel lining plate (1-1), an upper ceramic grinding plate (1-3) is embedded on the upper rubber disc (1-2), and the outer surface of the upper ceramic grinding plate (1-3) is flush with the outer surface of the upper rubber disc (1-2) to form a working surface of the upper grinding disc (1).
4. A bean gravel pump millstone structure according to claim 3, characterized in that: the upper rubber disc (1-2) is a polyurethane rubber disc, the outer edge of the upper rubber disc (1-2) is flush with the outer edge of the upper steel lining plate (1-1), and an integrally formed upper fixing flange (1-4) is arranged in the center of the upper steel lining plate (1-1).
5. The structure of claim 4, wherein: at least one grease injection hole (5) is arranged in the upper rubber disc (1-2) along the radial direction, and the grease injection hole (5) is communicated with at least one corresponding grease lubrication hole (6).
6. The structure of the pump and millstone of the bean gravel pump according to claim 1 or 2 or 4 or 5, characterized in that: the upper millstone (1) is also provided with a compressed air inlet (1-5), a pressure relief opening (1-6) and a standby pressure relief opening (1-7).
7. The structure of claim 6, wherein: the compressed air inlet (1-5), the pressure relief opening (1-6), the standby pressure relief opening (1-7) and the feeding opening (3) are respectively positioned in four quadrants.
8. The structure of the pump and millstone of the bean gravel pump according to claim 1 or 2 or 4 or 5 or 7, characterized in that: the lower grinding disc (2) comprises a lower steel lining plate (2-1) and a lower rubber disc (2-2), the lower rubber disc (2-2) is fixed on the lower steel lining plate (2-1), a lower ceramic grinding plate (2-3) is embedded on the lower rubber disc (2-2), and the outer surface of the lower ceramic grinding plate (2-3) is flush with the outer surface of the lower rubber disc (2-2) to form a working surface of the lower grinding disc (2).
9. The structure of claim 8, wherein: the lower rubber disc (2-2) is a polyurethane rubber disc, the outer edge of the lower rubber disc (2-2) is flush with the outer edge of the lower steel lining plate (2-1), and the center of the lower steel lining plate (2-1) is provided with an integrally formed lower fixing flange (2-4).
10. The structure of claim 9, wherein: at least one grease injection hole (5) is arranged in the lower rubber disc (2-2) along the radial direction, and the grease injection hole (5) is communicated with at least one corresponding grease lubrication hole (6).
11. A process for producing the structure of the pump and millstone of the bean gravel according to any one of claims 3 to 9, characterized by comprising the following steps:
s1: manufacturing an upper casting disc with the same structural size as the upper steel lining plate (1-1), and manufacturing a lower casting disc with the same structural size as the lower steel lining plate (2-1); annular grooves are formed in the upper casting plate and the lower casting plate;
s2: the upper casting disc and the lower casting disc are respectively prevented from being in corresponding prefabricated moulds, a casting cavity of an upper rubber disc is formed between the upper casting disc and the corresponding prefabricated mould, and a casting cavity of a lower rubber disc is formed between the corresponding prefabricated moulds of the lower casting disc;
s3: filling the openings on the upper casting tray and the lower casting tray with cover bodies;
s4: heating the rubber casting material prepared in advance to a certain temperature to melt the rubber casting material into jelly;
s5: uniformly injecting the jelly in the step S4 into a casting cavity, slightly pressing the mold to tightly adhere the jelly to an upper casting plate and a lower casting plate and removing bubbles;
s6: after the jelly in the casting cavity is cooled and solidified, forming a corresponding prefabricated upper rubber disc and a corresponding prefabricated lower rubber disc, and then removing the prefabricated upper rubber disc and the prefabricated lower rubber disc from the corresponding upper casting disc and the corresponding lower casting disc;
s7: performing rough machining on the prefabricated upper rubber disc and the prefabricated lower rubber disc, and treating burrs and convex objects on the surfaces of the prefabricated upper rubber disc and the prefabricated lower rubber disc;
s8: carrying out wear-resisting and pressure-resisting tests on the treated prefabricated upper rubber disc and the prefabricated lower rubber disc to determine whether the prefabricated upper rubber disc and the prefabricated lower rubber disc have good mechanical properties;
s9: polishing the prefabricated upper rubber disc and the prefabricated lower rubber disc with good mechanical properties to enable the prefabricated upper rubber disc and the prefabricated lower rubber disc to be qualified;
s10: installing the upper rubber disc in the step S9 on an upper steel lining plate (1-1), and embedding a ceramic grinding plate into the upper rubber disc to form an upper grinding disc (1); similarly, the lower rubber plate in step S9 is mounted on the lower steel lining plate (2-1), and the ceramic grinding plate is embedded into the lower rubber plate to form the lower grinding disc (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310319753.8A CN116061099A (en) | 2023-03-29 | 2023-03-29 | Bean gravel pump millstone structure and production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310319753.8A CN116061099A (en) | 2023-03-29 | 2023-03-29 | Bean gravel pump millstone structure and production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116061099A true CN116061099A (en) | 2023-05-05 |
Family
ID=86182251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310319753.8A Pending CN116061099A (en) | 2023-03-29 | 2023-03-29 | Bean gravel pump millstone structure and production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116061099A (en) |
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2023
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