CN108906946B - Hollow rotor forming equipment - Google Patents
Hollow rotor forming equipment Download PDFInfo
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- CN108906946B CN108906946B CN201810818977.2A CN201810818977A CN108906946B CN 108906946 B CN108906946 B CN 108906946B CN 201810818977 A CN201810818977 A CN 201810818977A CN 108906946 B CN108906946 B CN 108906946B
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- forming
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- hollow rotor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D15/00—Corrugating tubes
- B21D15/04—Corrugating tubes transversely, e.g. helically
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention discloses hollow rotor forming equipment which comprises a reduction gearbox, a hollow rotor forming mechanism, three universal joint connecting shafts, a base and a traction clamping mechanism, wherein the reduction gearbox is arranged on the upper surface of the base, the front side surface of the base is fixedly connected with the rear side surface of a die supporting plate on the hollow rotor forming mechanism, three output transmission shafts on the reduction gearbox are flexibly connected with three forming die rotating shafts on the hollow rotor forming mechanism through the three universal joint connecting shafts, three forming die rollers on the hollow rotor forming mechanism carry out cold extrusion forming on steel pipe raw materials, and a traction trolley on the traction clamping mechanism clamps and positions the steel pipe raw materials and pulls the steel pipe raw materials. Compared with a solid rotor with a long processing period, the invention can rapidly process and shape the steel pipe raw material into the hollow rotor, and the hollow rotor has a huge application prospect, so the invention has high social value.
Description
Technical Field
The invention relates to the field of screw pump rotors, in particular to hollow rotor forming equipment.
Background
The existing screw pump rotor is usually processed by a solid steel column through a machining process of hanging screw pitch and whirlwind milling, and further finish milling, grinding and polishing are needed due to the fact that the roughness of the screw pump rotor after being machined and formed is large. Since the screw pump rotor is solid, the cutting speed of the processing machine is low, and therefore, it generally takes 1 to 7 days to process the screw pump rotor from a solid steel column into a usable screw pump rotor, and the larger the radius of the screw pump rotor is, the longer the processing cycle is.
With the technical development of screw pumps, those skilled in the art have found that screw pumps employing hollow rotors perform better than screw pumps employing solid rotors in operating environments with low external loads. The material cost of the hollow rotor is less than one fifth of that of the solid rotor, and the starting torque of the screw pump adopting the hollow rotor is smaller due to the lighter mass of the hollow rotor, so that the screw pump can be matched with a motor with smaller torque, and the production cost is reduced. However, the current molding equipment of the hollow rotor is not mature enough, and the popularization and application of the hollow rotor are limited by the molding equipment.
Disclosure of Invention
The invention aims to solve the technical problems that: the invention provides a hollow rotor forming device which forms a steel pipe raw material into a hollow rotor through a cold extrusion forming mode.
The invention solves the technical problems as follows: a hollow rotor forming apparatus, comprising:
the speed reduction box is provided with an input transmission shaft and three output transmission shafts, the three output transmission shafts are in regular triangle distribution, the input transmission shafts drive the three output transmission shafts to rotate at the same speed in the same direction through the mutual meshing of gears, the speed reduction box is provided with rotor bearing holes, the rotor bearing holes are positioned at the middle positions of the three output transmission shafts, and the rotor bearing holes are round holes; the three output transmission shafts comprise an upper output transmission shaft, a left output transmission shaft and a right output transmission shaft;
the hollow rotor forming mechanism is positioned in front of the reduction gearbox and comprises a vertical die supporting plate, three guide rails are arranged on the front side surface of the die supporting plate, one of the guide rails is vertically arranged, the central lines of the three guide rails are mutually intersected at an angle of 120 degrees, a rotor forming cavity is arranged between the three guide rails of the die supporting plate, a guide sliding block is arranged on each guide rail, the three guide sliding blocks synchronously slide inwards or outwards, a forming die seat is connected to the inner side surface of the guide sliding block, a horizontal forming die rotating shaft is arranged on the forming die seat, forming die rollers are connected to the forming die rotating shaft, and spiral curved surfaces are arranged on the outer surfaces of the forming die rollers; the three forming mold rotating shafts are in regular triangle distribution, forming center lines are arranged at the middle positions of the three forming mold rotating shafts, and the three forming mold rotating shafts comprise an upper forming mold rotating shaft, a left forming mold rotating shaft and a right forming mold rotating shaft;
the three universal joint connecting shafts comprise telescopic transmission rods, one end of each telescopic transmission rod is provided with a driving universal joint, the other end of each telescopic transmission rod is provided with a driven universal joint, the driving universal joints are connected with the corresponding output transmission shafts, and the driven universal joints are connected with a forming die rotating shaft on the inner side surface of the guide sliding block; the three universal joint connecting shafts comprise an upper universal joint connecting shaft, a left universal joint connecting shaft and a right universal joint connecting shaft, the upper output transmission shaft and the upper forming die rotating shaft are flexibly connected through the upper universal joint connecting shaft, the left output transmission shaft and the left forming die rotating shaft are flexibly connected through the left universal joint connecting shaft, and the right output transmission shaft and the right forming die rotating shaft are flexibly connected through the right universal joint connecting shaft;
the upper surface of the base is fixedly connected with the lower bottom surface of the reduction gearbox, and the front side surface of the base is fixedly connected with the rear side surface of the die supporting plate;
the traction clamping mechanism comprises a traction trolley and a traction platform, the traction platform is positioned in front of the hollow rotor forming mechanism, and a trolley sliding rail is arranged on the traction platform; the lower bottom surface of traction trolley is equipped with the pulley, the pulley is in slide on the trolley slide rail, be equipped with the clamping chuck that can freely rotate on the traction trolley, clamping chuck is directional the rotor takes shape the die cavity, the central axis of rotor bearing hole the central line of clamping chuck with the three-line coincidence of shaping central line, the straight line that traction direction of traction trolley is located with shaping central line is parallel.
As a further improvement of the above technical solution, the input transmission shaft is located on a rear side of the reduction gearbox, and the output transmission shaft is located on a front side of the reduction gearbox.
As a further improvement of the above technical solution, the input transmission shaft is connected with a power output motor.
As a further improvement of the above technical solution, the three guide sliders are driven by three hydraulic cylinders, respectively.
As a further improvement of the technical scheme, three hydraulic cylinders synchronously run.
As a further improvement of the technical scheme, the axial center of the forming die roller is provided with a shaft connecting hole, the shaft connecting hole is provided with a connecting hole key slot, the forming die rotating shaft is provided with a rotating shaft key slot, and the forming die roller is connected with the forming die rotating shaft through a key.
As a further improvement of the technical scheme, a driving sprocket is arranged on one side of the traction platform, a driven sprocket is arranged on the other side of the traction platform, a chain is arranged between the driving sprocket and the driven sprocket, and a chain clamping piece is arranged on the lower bottom surface of the traction trolley and clamped on the chain.
As a further improvement of the technical scheme, the left side surface and the right side surface of the base are respectively connected with a supporting rod, and the supporting rods are connected with the rear side surface of the die supporting plate.
The beneficial effects of the invention are as follows: the steel pipe raw material passes through the rotor bearing hole, one end of the steel pipe raw material is fixed by the clamping chuck, the other end of the steel pipe raw material is supported on the rotor bearing hole, the rolling of the three forming die rollers carries out cold extrusion forming on the steel pipe raw material, the steel pipe raw material is extruded to form a spiral curved surface, and after 2-4 times of cold extrusion forming, the steel pipe raw material is formed into a hollow rotor of the screw pump. Compared with a solid rotor with a long processing period, the invention can rapidly process and shape the steel pipe raw material into the hollow rotor, and the hollow rotor has a huge application prospect, so the invention has high social value.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings described are only some embodiments of the invention, but not all embodiments, and that other designs and drawings can be obtained from these drawings by a person skilled in the art without inventive effort.
FIG. 1 is a schematic perspective view of embodiment a1 of the present invention;
FIG. 2 is a front view of embodiment a1 of the present invention;
FIG. 3 is a right side view of embodiment a1 of the present invention;
FIG. 4 is an internal view of the reduction gearbox of embodiment a1 of the present invention;
FIG. 5 is a schematic perspective view of a roller of a molding die according to embodiment a1 of the present invention;
fig. 6 is a front view of a molding die roller according to embodiment a1 of the present invention.
Detailed Description
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention. In addition, all coupling/connection relationships mentioned herein do not refer to direct connection of the components, but rather, refer to the fact that a more optimal coupling structure may be formed by adding or subtracting coupling aids depending on the particular implementation. The technical features in the invention can be interactively combined on the premise of no contradiction and conflict. Finally, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. refer to the directions or positional relationships based on the directions or positional relationships shown in the drawings, only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third," as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 to 6, this is embodiment a1 of the present invention, specifically:
the utility model provides a hollow rotor former, includes reducing gear box 1, the trailing flank of reducing gear box is equipped with an input transmission shaft 11, input transmission shaft is connected with the power take off motor, the leading flank of reducing gear box is equipped with three output transmission shaft 12, and three output transmission shaft is regular triangle and distributes, be equipped with rotor bearing hole 13 on the reducing gear box, rotor bearing hole is located three on the intermediate position of output transmission shaft, three output transmission shaft includes output transmission shaft 121, left output transmission shaft 122 and right output transmission shaft 123. Referring to fig. 4, the input gear 111 of the input transmission shaft is meshed with the first gear 141 of the reduction shaft 14, the second gear 142 of the reduction shaft is meshed with the rear gear 151 of the synchronizing shaft 15, and the front gear 152 of the synchronizing shaft is meshed with the upper output gear 121a of the upper output transmission shaft, the left output gear 122a of the left output transmission shaft and the right output gear 123a of the right output transmission shaft, so that the input transmission shaft drives the three output transmission shafts to rotate at the same speed in the same direction through the mutual meshing of the gears. The transmission ratio of the reduction gearbox is large, and the torque of the power output motor is amplified by the reduction gearbox and then is equally distributed to three output transmission shafts, so that the three output transmission shafts can obtain large torque, and a foundation is laid for implementing cold extrusion molding.
The invention also comprises a hollow rotor forming mechanism 2, wherein the hollow rotor forming mechanism is positioned in front of the reduction gearbox, the hollow rotor forming mechanism comprises a vertical die supporting plate 21, three guide rails 22 are arranged on the front side surface of the die supporting plate, one guide rail is vertically arranged, the central lines of the three guide rails are intersected at an angle of 120 degrees, a rotor forming cavity is arranged between the three guide rails of the die supporting plate, and the steel pipe raw material is subjected to cold extrusion forming in the rotor forming cavity. And each guide rail is provided with a guide slide block 23, three guide slide blocks are driven by three hydraulic cylinders respectively, and the three hydraulic cylinders synchronously run, so that the three guide slide blocks synchronously slide inwards or outwards. The inner side surface of the guide slide block is connected with a forming die seat 24, a horizontal forming die rotating shaft 241 is arranged on the forming die seat, and a forming die roller 242 is connected on the forming die rotating shaft. The three forming die rotating shafts are in regular triangle distribution, and forming center lines are arranged at the middle positions of the three forming die rotating shafts. Referring to fig. 5 and 6, the outer surface of the forming mold roller is provided with a spiral curved surface, the axial center of the forming mold roller is provided with a shaft connecting hole 242a, the shaft connecting hole is provided with a connecting hole key slot 242b, the forming mold rotating shaft is provided with a rotating shaft key slot 241a, and the forming mold roller is connected with the forming mold rotating shaft through a key. Because the surface of forming die gyro wheel is equipped with spiral curved surface, the rotation of forming die pivot drives the forming die gyro wheel and rolls, consequently after rolling three forming die gyro wheels and steel pipe raw materials contact, the steel pipe raw materials can be extruded crooked formation spiral curved surface, and the steel pipe raw materials that has spiral curved surface is driven by rolling three forming die gyro wheels and is constantly rotated forward for the steel pipe raw materials is the shape of hollow rotor gradually.
The invention further comprises three universal joint connecting shafts 3, each universal joint connecting shaft comprises a telescopic transmission rod 31, one end of each telescopic transmission rod is provided with a driving universal joint 32, the other end of each telescopic transmission rod is provided with a driven universal joint 33, the driving universal joints are connected with the corresponding output transmission shafts, and the driven universal joints are connected with a forming die rotating shaft on the inner side surface of the guide sliding block. The three universal joint connecting shafts comprise an upper universal joint connecting shaft 34, a left universal joint connecting shaft 35 and a right universal joint connecting shaft 36, the upper output transmission shaft and the upper molding die rotating shaft are flexibly connected through the upper universal joint connecting shaft, the left output transmission shaft and the left molding die rotating shaft are flexibly connected through the left universal joint connecting shaft, and the right output transmission shaft and the right molding die rotating shaft are flexibly connected through the right universal joint connecting shaft.
Since the position of the rotating shaft of the forming die is changed along with the sliding of the guide slide block, the length of the universal joint connecting shaft is also changed along with the sliding of the guide slide block. When the central axis of the universal joint connecting shaft and the central axis of the forming die rotating shaft are positioned on the same horizontal plane, the length of the universal joint connecting shaft is shortest, and the length of the universal joint connecting shaft is mainly adjusted through the telescopic transmission rod. The telescopic transmission rod comprises a driving transmission rod 311 and a driven transmission rod 312, a second driving yoke 322 is arranged at the head end of the driving transmission rod, the output transmission shaft is connected with a first driving yoke 321, a driving cross shaft is arranged between the first driving yoke and the second driving yoke, and the first driving yoke and the second driving yoke are hinged through the driving cross shaft; the head end of the driven transmission rod is provided with a second driven yoke 332, the forming die rotating shaft is connected with a first driven yoke 331, a driven cross shaft is arranged between the first driven yoke and the second driven yoke, and the first driven yoke and the second driven yoke are hinged through the driven cross shaft; the second driving yoke is identical to the second driven yoke, and the driving cross is identical to the driven cross. The first driving yoke, the second driving yoke and the driving cross shaft jointly form the driving universal joint, and the first driven yoke, the second driven yoke and the driven cross shaft jointly form the driven universal joint. The end of the driving transmission rod is provided with a spline groove, the end of the driven transmission rod is provided with a spline shaft 312a, the spline shaft is in matched connection with the spline groove, torque on the driving transmission rod is transmitted to the driven transmission rod through spline connection, and the spline connection does not limit axial movement between the spline shaft and the spline groove, so that the spline shaft can stretch and slide in the spline groove, the length of the telescopic transmission rod is adjusted, and the length of the universal joint connection shaft is adjusted. In order to avoid dry grinding of the tail end of the driving transmission rod and the tail end of the driven transmission rod, the depth of the spline groove is shorter than the length of the spline shaft; in order to enable the spline shaft to better perform telescopic sliding in the spline groove, lubricating grease is smeared in the groove of the spline shaft.
Further as the preferred implementation manner, the positions of the driving transmission rod and the driven transmission rod can be replaced with each other, namely, the output transmission shaft is connected with a first driving yoke, a second driven yoke on the driven transmission rod is hinged with the first driving yoke through the driving cross shaft, the forming die rotating shaft is connected with a first driven yoke, and the second driving yoke on the driving transmission rod is hinged with the first driven yoke through the driven cross shaft.
The invention also comprises a base 4, wherein the upper surface of the base is fixedly connected with the lower bottom surface of the reduction gearbox, the front side surface of the base is fixedly connected with the rear side surface of the die supporting plate, the lower part of the base is provided with a fixing foot plate 41, the fixing foot plate is provided with a fixing foot hole 411, and the base and the ground can be fixed through foot screws by the arrangement of the fixing foot hole. In order to prevent the mold supporting plate from tilting, the left and right sides of the base are connected with supporting rods 42, which are connected with the rear side of the mold supporting plate.
The invention further comprises a traction clamping mechanism 5, wherein the traction clamping mechanism comprises a traction trolley 51 and a traction platform 52, the traction platform is positioned in front of the hollow rotor forming mechanism, a trolley sliding rail 521 is arranged on the traction platform, a driving sprocket 522 is arranged on one side of the traction platform, a driven sprocket 523 is arranged on the other side of the traction platform, and a chain is arranged between the driving sprocket and the driven sprocket. The lower bottom surface of the traction trolley is provided with a pulley 511, the pulley slides on the trolley sliding rail, the lower bottom surface of the traction trolley is also provided with a chain clamping piece 512, and the chain clamping piece is clamped on the chain, so that the traction trolley slides along with the movement of the chain; the traction trolley is provided with a clamping chuck 513 capable of rotating freely, the clamping chuck points to the rotor forming cavity, and because the clamping chuck is used for clamping and positioning the tail end of the steel pipe raw material, the central line of the clamping chuck coincides with the forming central line, and the straight line of the traction direction of the traction trolley is parallel to the forming central line. Limit switches are arranged on two sides of the traction platform, and when the traction trolley touches the limit switches, the motor connected with the driving sprocket stops rotating, so that the traction trolley is prevented from falling from the sliding rail. The forward rotating distance of the steel pipe raw material in a period of time is the steel pipe forming speed, the sliding speed of the traction trolley is consistent with the steel pipe forming speed, and the clamping chuck is free to rotate, so that the rotation of the steel pipe raw material during forming can drive the clamping chuck to rotate.
The molding process of the invention comprises the following steps: the method comprises the steps of firstly, sliding three guide sliding blocks on a hollow rotor forming mechanism to the dead point outwards, then enabling steel pipe raw materials to pass through a rotor supporting hole and a rotor forming cavity until one end of the steel pipe raw materials is clamped and fixed by a clamping chuck, supporting the other end of the steel pipe raw materials on the rotor supporting hole, enabling the steel pipe raw materials to be positioned more accurately, enabling the rotor supporting hole to be a round hole, enabling the central axis of the rotor supporting hole to coincide with the central line of the clamping chuck, and enabling the diameter of the rotor supporting hole to be consistent with the outer diameter of the steel pipe raw materials. After the steel pipe raw materials are clamped and positioned, the power output motor is turned on, the three forming die rotating shafts rotate at the same speed in the same direction, then the three guide sliding blocks are slid inwards until the three forming die rolling wheels are contacted with the steel pipe raw materials, the rolling of the three forming die rolling wheels carries out cold extrusion forming on the steel pipe raw materials, the steel pipe raw materials are extruded to form a spiral curved surface, and the traction trolley pulls the steel pipe raw materials at the same speed, so that the steel pipe raw materials are well fixed during processing forming. And finally, after the first forming process of the steel pipe raw material is finished, the power output motor is required to be reversely rotated to carry out the second forming process, and the steel pipe raw material can be formed into the hollow rotor of the screw pump after being subjected to cold extrusion forming for 2-4 times because the eccentric amount of the steel pipe raw material is overlarge during forming. Compared with a solid rotor with a long processing period, the invention can rapidly process and shape the steel pipe raw material into the hollow rotor, and the hollow rotor has a huge application prospect, so the invention has high social value.
Further, in a preferred embodiment, the steel pipe material is preferably a seamless steel pipe, the tensile strength of which is 8 to 10 times that of a normal steel material, and the seamless steel pipe is excellent in mechanical properties, and does not generate deformation and memory even if it is repeatedly extruded and stretched during the working and molding, and is suitably used as the molding material of the present invention.
While the preferred embodiments of the present invention have been illustrated and described, the present invention is not limited to the embodiments, and various equivalent modifications and substitutions can be made by one skilled in the art without departing from the spirit of the present invention, and these are intended to be included in the scope of the present invention as defined in the appended claims.
Claims (8)
1. A hollow rotor forming apparatus characterized by comprising:
the speed reduction box is provided with an input transmission shaft and three output transmission shafts, the three output transmission shafts are in regular triangle distribution, the input transmission shafts drive the three output transmission shafts to rotate at the same speed in the same direction through the mutual meshing of gears, the speed reduction box is provided with rotor bearing holes, the rotor bearing holes are positioned at the middle positions of the three output transmission shafts, and the rotor bearing holes are round holes; the three output transmission shafts comprise an upper output transmission shaft, a left output transmission shaft and a right output transmission shaft;
the hollow rotor forming mechanism is positioned in front of the reduction gearbox and comprises a vertical die supporting plate, three guide rails are arranged on the front side surface of the die supporting plate, one of the guide rails is vertically arranged, the central lines of the three guide rails are mutually intersected at an angle of 120 degrees, a rotor forming cavity is arranged between the three guide rails of the die supporting plate, a guide sliding block is arranged on each guide rail, the three guide sliding blocks synchronously slide inwards or outwards, a forming die seat is connected to the inner side surface of the guide sliding block, a horizontal forming die rotating shaft is arranged on the forming die seat, forming die rollers are connected to the forming die rotating shaft, and spiral curved surfaces are arranged on the outer surfaces of the forming die rollers; the three forming mold rotating shafts are in regular triangle distribution, forming center lines are arranged at the middle positions of the three forming mold rotating shafts, and the three forming mold rotating shafts comprise an upper forming mold rotating shaft, a left forming mold rotating shaft and a right forming mold rotating shaft;
the three universal joint connecting shafts comprise telescopic transmission rods, one end of each telescopic transmission rod is provided with a driving universal joint, the other end of each telescopic transmission rod is provided with a driven universal joint, the driving universal joints are connected with the corresponding output transmission shafts, and the driven universal joints are connected with a forming die rotating shaft on the inner side surface of the guide sliding block; the three universal joint connecting shafts comprise an upper universal joint connecting shaft, a left universal joint connecting shaft and a right universal joint connecting shaft, the upper output transmission shaft and the upper forming die rotating shaft are flexibly connected through the upper universal joint connecting shaft, the left output transmission shaft and the left forming die rotating shaft are flexibly connected through the left universal joint connecting shaft, and the right output transmission shaft and the right forming die rotating shaft are flexibly connected through the right universal joint connecting shaft;
the upper surface of the base is fixedly connected with the lower bottom surface of the reduction gearbox, and the front side surface of the base is fixedly connected with the rear side surface of the die supporting plate;
the traction clamping mechanism comprises a traction trolley and a traction platform, the traction platform is positioned in front of the hollow rotor forming mechanism, and a trolley sliding rail is arranged on the traction platform; the lower bottom surface of traction trolley is equipped with the pulley, the pulley is in slide on the trolley slide rail, be equipped with the clamping chuck that can freely rotate on the traction trolley, clamping chuck is directional the rotor takes shape the die cavity, the central axis of rotor bearing hole the central line of clamping chuck with the three-line coincidence of shaping central line, the straight line that traction direction of traction trolley is located with shaping central line is parallel.
2. A hollow rotor forming apparatus as claimed in claim 1, wherein: the input transmission shaft is located on the rear side face of the reduction gearbox, and the output transmission shaft is located on the front side face of the reduction gearbox.
3. A hollow rotor forming apparatus as claimed in claim 2, wherein: the input transmission shaft is connected with a power output motor.
4. A hollow rotor forming apparatus as claimed in claim 1, wherein: the three guide sliding blocks are driven by three hydraulic cylinders respectively.
5. A hollow rotor forming apparatus as claimed in claim 4, wherein: and the three hydraulic cylinders run synchronously.
6. A hollow rotor forming apparatus as claimed in claim 1, wherein: the forming die roller is characterized in that a shaft connecting hole is formed in the axial center of the forming die roller, a connecting hole key groove is formed in the shaft connecting hole, a rotating shaft key groove is formed in a rotating shaft of the forming die, and the forming die roller is connected with the rotating shaft of the forming die through a key.
7. A hollow rotor forming apparatus as claimed in claim 1, wherein: one side of the traction platform is provided with a driving sprocket, the other side of the traction platform is provided with a driven sprocket, a chain is arranged between the driving sprocket and the driven sprocket, the lower bottom surface of the traction trolley is provided with a chain clamping piece, and the chain clamping piece is clamped on the chain.
8. A hollow rotor forming apparatus as claimed in claim 1, wherein: the left side and the right side of the base are both connected with support rods, and the support rods are connected with the rear side of the die supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810818977.2A CN108906946B (en) | 2018-07-24 | 2018-07-24 | Hollow rotor forming equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810818977.2A CN108906946B (en) | 2018-07-24 | 2018-07-24 | Hollow rotor forming equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108906946A CN108906946A (en) | 2018-11-30 |
| CN108906946B true CN108906946B (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810818977.2A Active CN108906946B (en) | 2018-07-24 | 2018-07-24 | Hollow rotor forming equipment |
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| CN (1) | CN108906946B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396311A (en) * | 2020-04-26 | 2020-07-10 | 陕西理工大学 | Hollow screw rotor and processing method thereof |
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| CN1614238A (en) * | 2003-11-04 | 2005-05-11 | 大庆油田有限责任公司 | Method for machining screw pump stator with equal wall thickness |
| JP2006299815A (en) * | 2005-04-15 | 2006-11-02 | Hitachi Industrial Equipment Systems Co Ltd | Method of manufacturing for screw rotor and screw rotor |
| CN101752958A (en) * | 2010-01-18 | 2010-06-23 | 东元总合科技（杭州）有限公司 | Water-cooled motor and motor cooling method |
| CN102266875A (en) * | 2011-06-30 | 2011-12-07 | 宁波德艺钢管制造有限公司 | Device used for producing screw rotor |
| CN107999585A (en) * | 2018-01-09 | 2018-05-08 | 洛阳德美机械有限公司 | A kind of pressure setting of bellows |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE50001596D1 (en) * | 2000-01-28 | 2003-05-08 | Nexans | Process for the continuous production of longitudinally welded and corrugated metal pipes and device for carrying out the process |
| CN208743434U (en) * | 2018-07-24 | 2019-04-16 | 广东斯坦德流体系统有限公司 | A kind of sleeve rotor molding equipment |
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2018
- 2018-07-24 CN CN201810818977.2A patent/CN108906946B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1614238A (en) * | 2003-11-04 | 2005-05-11 | 大庆油田有限责任公司 | Method for machining screw pump stator with equal wall thickness |
| JP2006299815A (en) * | 2005-04-15 | 2006-11-02 | Hitachi Industrial Equipment Systems Co Ltd | Method of manufacturing for screw rotor and screw rotor |
| CN101752958A (en) * | 2010-01-18 | 2010-06-23 | 东元总合科技（杭州）有限公司 | Water-cooled motor and motor cooling method |
| CN102266875A (en) * | 2011-06-30 | 2011-12-07 | 宁波德艺钢管制造有限公司 | Device used for producing screw rotor |
| CN107999585A (en) * | 2018-01-09 | 2018-05-08 | 洛阳德美机械有限公司 | A kind of pressure setting of bellows |
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| Publication number | Publication date |
|---|---|
| CN108906946A (en) | 2018-11-30 |
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