阅读说明：本技术 一种不锈钢转子箱体、流体泵及不锈钢转子箱体的加工方法 (Stainless steel rotor box body, fluid pump and machining method of stainless steel rotor box body ) 是由 不公告发明人 于 2019-10-28 设计创作，主要内容包括：本发明公开了一种不锈钢转子箱体,用于食品医药生产设备用的流体泵,其特征在于,包括：上顶板,包括沿所述上顶板长度方向排列的动力输入轴孔和动力输出轴孔；第一侧板,垂直于所述上顶板,并包括进料口；以及第二侧板,相对于所述第一侧板,垂直于所述上顶板,并包括出料口。基于上述技术方案,本申请能够使得不锈钢转子箱体具有耐酸碱腐蚀、结构可靠、性能满足使用要求等优点,并且不但能够满足食药设备的使用需要,还能满足快速、批量化的生产要求。(The invention discloses a stainless steel rotor box body, which is used for a fluid pump for food and medicine production equipment and is characterized by comprising the following components: the upper top plate comprises a power input shaft hole and a power output shaft hole which are arranged along the length direction of the upper top plate; the first side plate is perpendicular to the upper top plate and comprises a feeding hole; and the second side plate is vertical to the upper top plate relative to the first side plate and comprises a discharge hole. Based on above-mentioned technical scheme, this application can make stainless steel rotor box have acid and alkali corrosion resistance, the structure is reliable, the performance satisfies advantages such as operation requirement to not only can satisfy the operation needs of edible medicine equipment, can also satisfy quick, the batch production requirement.)

1. A stainless steel rotor box body is used for a fluid pump for food and medicine production equipment, and is characterized by comprising:

the upper top plate comprises a power input shaft hole and a power output shaft hole which are arranged along the length direction of the upper top plate;

the first side plate is perpendicular to the upper top plate and comprises a feeding hole; and

the second side plate is perpendicular to the upper top plate relative to the first side plate and comprises a discharge hole.

2. The stainless steel rotor case of claim 1, wherein the upper ceiling is quadrilateral, the stainless steel rotor case further comprising:

the positioning pin hole is arranged on one opposite angle of the upper top plate; and

the fastening holes are arranged at four corners of the upper top plate and penetrate through the thickness direction of the first side plate or the second side plate;

the fastening holes positioned at the same corner of the upper top plate are positioned on the outer sides of the positioning pin holes.

3. The stainless steel rotor case of claim 1, further comprising:

and the shaft positioning holes are arranged on the first side plate or the second side plate, are perpendicular to the axis direction of the power input shaft hole or the power output shaft hole, and are used for installing and positioning an input shaft or an output shaft installed in the power input shaft hole or the power output shaft hole.

4. The stainless steel rotor case of claim 3, wherein one of said shaft positioning holes is provided on each of both sides of said power input shaft hole or said power output shaft hole.

5. The stainless steel rotor case of claim 4, further comprising:

the bending plates are positioned on two sides of the first side plate and the second side plate, form a set angle with the first side plate or the second side plate and are perpendicular to the upper top plate;

the two shaft positioning holes for positioning one of the power input shaft hole or the power output shaft hole are formed in the bending plate.

6. A fluid pump comprising the stainless steel rotor case according to any one of claims 1 to 5.

7. A processing method of a stainless steel rotor box body is characterized by comprising the following steps:

selecting acid and alkali corrosion resistant stainless steel casting blank;

carrying out heat treatment on the casting blank;

performing shot blasting treatment on the casting blank;

and processing a power input shaft hole, a power output shaft hole, a feeding hole, a discharging hole, a positioning pin hole, a fastening hole and a shaft positioning hole on the cast blank subjected to shot blasting by using a numerical control processing center.

8. The process of claim 7, wherein the heat treating of the cast blank comprises:

and preserving heat for 2-4 hours at 870-950 ℃ and carrying out air cooling or furnace cooling.

9. The process of claim 8, wherein the heat treating of the cast blank further comprises:

in the cooling process, when the temperature is 450-850 ℃, the rapid cooling is carried out through air cooling.

10. The machining method according to claim 7, wherein the shot blasting speed of the shot blasting treatment is controlled to be 60-110 m/s in the process of performing the shot blasting treatment on the cast blank until the surface roughness of the cast blank reaches Ra1.6.

Technical Field

The invention relates to the field of parts for food and medicine production equipment, in particular to the field of parts for a fluid pump, and specifically relates to a stainless steel rotor box body, a fluid pump and a processing method of the stainless steel rotor box body.

Background

The rotor box is internally provided with a transmission shaft and a rotor, is an intermediate container for containing and extruding raw materials by a fluid pump, needs to be connected with a power transmission shaft, is also connected with a raw material inlet and outlet, and plays roles of crushing and conveying.

Because the rotor box body structure needs a plurality of interfaces and pipelines communicated with the inside and the outside, the interfaces and the pipelines are required to be smooth; the transmission of the liquid in the pump body needs certain pressure and can bear the force of the rotor for extruding the raw materials, and the pressure bearing capacity of the rotor box body needs to be considered; meanwhile, the box body needs to be in contact with food and medicine raw materials, and is required to be easy to clean and disinfect and resistant to acid and alkali corrosion.

However, the conventional rotor box body cannot be smoothly communicated with a pipeline connector and the like, is easy to deform under the condition of bearing pressure, is not resistant to acid and alkali corrosion, and is not easy to clean and disinfect.

Disclosure of Invention

At least one object of the present invention is to provide a stainless steel rotor case, a fluid pump, and a method for processing the stainless steel rotor case, which can make the stainless steel rotor case have the advantages of acid and alkali corrosion resistance, reliable structure, and performance meeting the use requirements, and can meet the use requirements of food and drug equipment, as well as the requirements of rapid and batch production.

The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides a stainless steel rotor box body, which is used for a fluid pump for food and medicine production equipment and is characterized by comprising the following components:

the upper top plate comprises a power input shaft hole and a power output shaft hole which are arranged along the length direction of the upper top plate;

the first side plate is perpendicular to the upper top plate and comprises a feeding hole; and

the second side plate is perpendicular to the upper top plate relative to the first side plate and comprises a discharge hole.

As an optimization of any one of the technical solutions or any one of the optimized technical solutions provided in the foregoing or following paragraphs of the present invention, the upper ceiling is quadrilateral, and the stainless steel rotor case further includes:

the positioning pin hole is arranged on one opposite angle of the upper top plate; and

the fastening holes are arranged at four corners of the upper top plate and penetrate through the thickness direction of the first side plate or the second side plate;

the fastening holes positioned at the same corner of the upper top plate are positioned on the outer sides of the positioning pin holes.

As an optimization of any one of the technical solutions or any optimized technical solution provided in the foregoing or in the following, the stainless steel rotor case further includes:

and the shaft positioning holes are arranged on the first side plate or the second side plate, are perpendicular to the axis direction of the power input shaft hole or the power output shaft hole, and are used for installing and positioning an input shaft or an output shaft installed in the power input shaft hole or the power output shaft hole.

As an optimization of any one of the technical solutions or any one of the optimized technical solutions provided in the foregoing or the following paragraphs, two sides of the power input shaft hole or the power output shaft hole are respectively provided with one shaft positioning hole.

As an optimization of any one of the technical solutions or any optimized technical solution provided in the foregoing or in the following, the stainless steel rotor case further includes:

the bending plates are positioned on two sides of the first side plate and the second side plate, form a set angle with the first side plate or the second side plate and are perpendicular to the upper top plate;

the two shaft positioning holes for positioning one of the power input shaft hole or the power output shaft hole are formed in the bending plate.

The invention provides a fluid pump, which comprises a stainless steel rotor box body according to any one of the technical schemes.

The invention provides a processing method of a stainless steel rotor box body, which comprises the following steps:

selecting acid and alkali corrosion resistant stainless steel casting blank;

carrying out heat treatment on the casting blank;

performing shot blasting treatment on the casting blank;

and processing a power input shaft hole, a power output shaft hole, a feeding hole, a discharging hole, a positioning pin hole, a fastening hole and a shaft positioning hole on the cast blank subjected to shot blasting by using a numerical control processing center.

As an optimization of any one of the technical solutions or any one of the optimized technical solutions provided in the foregoing or the following of the present invention, the heat treatment process for the cast blank includes:

and preserving heat for 2-4 hours at 870-950 ℃ and carrying out air cooling or furnace cooling.

As an optimization of any one of the technical solutions or any one of the optimized technical solutions provided in the foregoing or the following paragraphs of the present invention, the heat treatment process of the cast blank further includes:

in the cooling process, when the temperature is 450-850 ℃, the rapid cooling is carried out through air cooling.

As for the optimization of any technical scheme or any optimized technical scheme provided in the foregoing or in the following, the shot blasting speed of shot blasting treatment is controlled to be 60-110 m/s in the process of shot blasting treatment on the cast blank until the surface roughness of the cast blank reaches Ra1.6.

Based on the technical scheme, the embodiment of the invention at least enables the stainless steel rotor box body to have the advantages of acid and alkali corrosion resistance, reliable structure, capability of meeting the use requirement and the like, and can meet the use requirement of food and medicine equipment and the requirement of rapid and batch production.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a structural schematic diagram of a right view angle of a stainless steel rotor case provided in an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a stainless steel rotor case according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a stainless steel rotor case according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a stainless steel rotor case according to an embodiment of the present invention;

FIG. 5 is a schematic perspective view of a stainless steel rotor case according to an embodiment of the present invention;

reference numerals: 1. go up roof, 2, first curb plate, 3, second curb plate, 4, power input shaft hole, 5, power output shaft hole, 6, feed inlet, 7, discharge gate, 8, locating pin hole, 9, fastening hole, 10, axle locating hole, 11, the board of buckling.

Detailed Description

The contents of the present invention and the points of distinction between the present invention and the prior art can be understood with reference to the accompanying drawings and the text. The invention will now be described in further detail, including the preferred embodiments, with reference to the accompanying drawings, in which some alternative embodiments of the invention are shown. It should be noted that: any technical features and any technical solutions in the present embodiment are one or more of various optional technical features or optional technical solutions, and for the sake of brevity, this document cannot exhaustively enumerate all the alternative technical features and alternative technical solutions of the present invention, and is also not convenient for each embodiment of the technical features to emphasize it as one of various optional embodiments, so those skilled in the art should know that: any technical means provided by the invention can be replaced or any two or more technical means or technical characteristics provided by the invention can be combined with each other to obtain a new technical scheme. Any technical features and any technical solutions in the present embodiment do not limit the scope of the present invention, and the scope of the present invention should include any alternative technical solutions that can be conceived by those skilled in the art without inventive efforts and new technical solutions that can be obtained by those skilled in the art by combining any two or more technical means or technical features provided by the present invention with each other.

The embodiment of the invention provides a stainless steel rotor box body, which is used for a fluid pump for food and medicine production equipment and is characterized by comprising the following components:

the upper top plate comprises a power input shaft hole and a power output shaft hole which are arranged along the length direction of the upper top plate;

the first side plate is perpendicular to the upper top plate and comprises a feeding hole; and

the second side plate is perpendicular to the upper top plate relative to the first side plate and comprises a discharge hole.

Stainless steel is resistant to the corrosion of weak corrosive media such as air, steam, water and the like and chemical corrosive media (such as acid, alkali, salt and the like), has good plasticity, toughness, weldability, corrosion resistance and no magnetism or weak magnetism, has good corrosion resistance in oxidizing and reducing media, and is commonly used for manufacturing acid-resistant equipment, such as corrosion-resistant containers, equipment linings, conveying pipelines, nitric acid-resistant equipment parts and the like. Because of these characteristics, it is also widely used in the fields of food and medicine production equipment which have high requirements for acid and alkali corrosion resistance. Therefore, the corrosion-resistant stainless steel is adopted to be cast and molded and then is machined.

As an optimization of any one of the technical solutions or any one of the optimized technical solutions provided in the foregoing or following paragraphs of the present invention, the upper ceiling is quadrilateral, and the stainless steel rotor case further includes:

the positioning pin hole is arranged on one opposite angle of the upper top plate; and

the fastening holes are arranged at four corners of the upper top plate and penetrate through the thickness direction of the first side plate or the second side plate;

the fastening holes positioned at the same corner of the upper top plate are positioned on the outer sides of the positioning pin holes.

As an optimization of any one of the technical solutions or any optimized technical solution provided in the foregoing or in the following, the stainless steel rotor case further includes:

and the shaft positioning holes are arranged on the first side plate or the second side plate, are perpendicular to the axis direction of the power input shaft hole or the power output shaft hole, and are used for installing and positioning an input shaft or an output shaft installed in the power input shaft hole or the power output shaft hole.

As an optimization of any one of the technical solutions or any one of the optimized technical solutions provided in the foregoing or the following paragraphs, two sides of the power input shaft hole or the power output shaft hole are respectively provided with one shaft positioning hole.

As an optimization of any one of the technical solutions or any optimized technical solution provided in the foregoing or in the following, the stainless steel rotor case further includes:

the bending plates are positioned on two sides of the first side plate and the second side plate, form a set angle with the first side plate or the second side plate and are perpendicular to the upper top plate;

the two shaft positioning holes for positioning one of the power input shaft hole or the power output shaft hole are formed in the bending plate.

The invention provides a fluid pump, which comprises a stainless steel rotor box body according to any one of the technical schemes.

The invention provides a processing method of a stainless steel rotor box body, which comprises the following steps:

selecting acid and alkali corrosion resistant stainless steel casting blank; the rotor box body is integrally cast and molded by acid and alkali corrosion resistant stainless steel, meets the requirements of complex structure and corrosion resistance required by design, and has attractive appearance and smooth lines.

Carrying out heat treatment on the casting blank; the rotor box body carries out heat treatment on the cast blank, eliminates the deformation problem caused by unbalanced internal stress after casting, is beneficial to subsequent part processing and dimensional stability after finished products, and can not generate deformation after part processing.

Performing shot blasting treatment on the casting blank; the rotor box body is subjected to shot blasting treatment, the problem of unbalanced stress in the casting is further solved, and meanwhile, edges and corners of the casting are smooth, and surface particles are uniform and attractive.

And processing a power input shaft hole, a power output shaft hole, a feeding hole, a discharging hole, a positioning pin hole, a fastening hole and a shaft positioning hole on the cast blank subjected to shot blasting by using a numerical control processing center. The rotor box body is processed by adopting a high-precision numerical control processing center, so that the high-precision size requirements and the relative position requirements of each mounting surface, each hole, each interface, each pipeline and the like are effectively ensured.

As an optimization of any one of the technical solutions or any one of the optimized technical solutions provided in the foregoing or the following of the present invention, the heat treatment process for the cast blank includes:

and preserving heat for 2-4 hours at 870-950 ℃ and carrying out air cooling or furnace cooling.

As an optimization of any one of the technical solutions or any one of the optimized technical solutions provided in the foregoing or the following paragraphs of the present invention, the heat treatment process of the cast blank further includes:

in the cooling process, when the temperature is 450-850 ℃, the rapid cooling is carried out through air cooling.

As for the optimization of any technical scheme or any optimized technical scheme provided in the foregoing or in the following, the shot blasting speed of shot blasting treatment is controlled to be 60-110 m/s in the process of shot blasting treatment on the cast blank until the surface roughness of the cast blank reaches Ra1.6.

Based on the technical scheme, the embodiment of the invention at least adopts the integral casting of stainless steel, so that the pressure bearing performance of parts is improved, the processing time is reduced, the consistency of the cast blank provides conditions for batch production, and the production efficiency is improved; the deformation of a cast blank is reduced by heat treatment and shot blasting, the finished product rate of the machined blank is improved, and the appearance of parts is attractive and smooth; the high-precision numerical control lathe and the numerical control machining center are adopted for machining, the high-precision size requirements and the relative position requirements of each mounting surface, each hole, each interface, each pipeline and the like are effectively guaranteed, errors during the assembly of the whole machine are reduced, the assembly efficiency is improved, and the performance of the whole machine is improved.

The technical scheme provided by the invention is explained in more detail in the following with reference to the attached drawings.

Fig. 1 is a right side view showing a raw material inlet/outlet port (end number 1) portion of a rotor case, which is mainly processed by a numerical control processing center, and has a small wall thickness and a high requirement on dimensional accuracy, and influences whether the rotor case is subjected to leakage and sliding after being assembled. Fig. 2 is a front view showing the mounting position of a driving shaft and a driven shaft (tail number 3), the size precision and the position precision of a hole directly influence the mounting of a bearing and the gap of meshing rotation of a rotor, and a peripheral positioning pin hole and a fastening hole determine whether boxes are staggered or not among boxes after assembly. Fig. 3 is a bottom view, which is an internal structure of the rotor case, and is a space for realizing the functions of the rotor case, a pair of rotors are installed and have a certain rotating speed in work, the rotors are mainly machined by a numerical control machining center, and whether the machining of the inner wall of the rotors is smooth or not plays a main role in the operation of the rotors. Fig. 4 is a sectional view of the inner cavity showing the structure of the inner cavity of the case. Fig. 5 is a three-dimensional view.

The method comprises the steps of selecting an acid-base corrosion resistant stainless steel casting blank, carrying out heat treatment on the blank, further carrying out shot blasting treatment on the blank, machining a sealing surface and a sealing groove on the shot blasting treated blank by using a precise numerical control lathe, and then machining interfaces and pipelines at all positions by using a numerical control machining center, so that the high-precision size requirements and the relative position requirements of all installation surfaces, holes, interfaces, pipelines and the like are met.

The invention has the innovation points that the problems of complex internal pipeline and external shape, high requirements on acid-base corrosion resistance, high requirements on assembly size precision and the like are solved, and the design requirements are met by adopting the processes of integral stainless steel casting, heat treatment, shot blasting, high-precision numerical control machining and the like.

Any embodiment disclosed herein above is meant to disclose, unless otherwise indicated, all numerical ranges disclosed as being preferred, and any person skilled in the art would understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Since the numerical values are too numerous to be exhaustive, some of the numerical values are disclosed in the present invention to illustrate the technical solutions of the present invention, and the above-mentioned numerical values should not be construed as limiting the scope of the present invention.

If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the terms "first" and "second" are used merely to distinguish one element from another in a descriptive sense and are not intended to have a special meaning unless otherwise stated.

Meanwhile, if the invention as described above discloses or relates to parts or structural members fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated. Any part provided by the invention can be assembled by a plurality of independent components or can be manufactured by an integral forming process.

If the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the description of the invention, the above-described terms are intended to be based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing and simplifying the description, and do not indicate or imply that the referenced device, mechanism, component, or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the invention.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.