CN213598184U - Integral rotor structure of rotary-vane vacuum pump and rotary-vane vacuum pump - Google Patents
Integral rotor structure of rotary-vane vacuum pump and rotary-vane vacuum pump Download PDFInfo
- Publication number
- CN213598184U CN213598184U CN202021771931.9U CN202021771931U CN213598184U CN 213598184 U CN213598184 U CN 213598184U CN 202021771931 U CN202021771931 U CN 202021771931U CN 213598184 U CN213598184 U CN 213598184U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- vacuum pump
- rotary
- groove
- end cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses an integrated rotor structure of a rotary-vane vacuum pump, which comprises a top end cylinder with a ladder shape and a key slot, a middle end cylinder with a middle slot and a bottom end cylinder with a bottom slot; the top end cylinder, the middle end cylinder and the bottom end cylinder are of concentric structures. The middle cylinder is respectively connected with the top cylinder and the bottom cylinder through cylindrical and concentric transition tables. The top cylinder comprises a motor connecting end, a bearing connecting end and an oil pump rotary sheet placing end; the middle groove of the middle cylinder is axially arranged at the axis of the cylinder and the two sides of the cylinder are symmetrical; the groove at the bottom end of the cylinder at the bottom end is positioned at the axis of the cylinder, the two sides of the cylinder are symmetrical, and the grooving direction is vertical to the groove formed by the cylinder at the middle end. The integral rotor is integrally of an integrated structure formed by precisely machining cast iron bars, is simple in structure, convenient to use and simple in manufacturing process, reduces the fault rate of a vacuum pump and the rejection rate caused by a casting process, is easy to maintain, reduces cost and improves efficiency.
Description
Technical Field
The utility model relates to a vacuum pump especially relates to an integral type rotor structure and rotary-vane vacuum pump of rotary-vane vacuum pump.
Background
The rotor of a mechanical oil seal rotary vane vacuum pump is a key component for operating the vacuum pump. As shown in fig. 1, the first-stage rotor and the second-stage rotor of the prior art are of a split structure.
The oil-sealed rotary-vane vacuum pump compresses gas by changing the volume of gas through the high-speed rotation of a rotary vane, and exhausts the gas from a compression end to an exhaust end to realize the purpose of vacuum pumping. The main functions of the vane rotary pump on the technical performance indexes are a stator, a rotor, a vane and an end cover. The rotor is arranged in the stator, the inner tangent point of the stator and the rotor is tightly abutted, and the stator and the rotor form a crescent-shaped closed space due to the eccentric distance generated by the different diameters of the stator and the rotor. The rotor is provided with a long groove and is provided with two rotary sheets. When the vacuum pump runs, the rotor rotates at a high speed, and the two rotary sheets are tightly attached to the inner surface of the stator under the action of centrifugal force, so that an air-tight space is formed. At this time, the air suction part is connected with a closed container to be in a vacuum state, the rotary vane rotates along with the rotor and moves in the rotor, the rotary vane enables the volume at the air inlet to be continuously increased, and the gas in the container connected with the air suction opening is discharged into the stator. The rotor rotates to make the rotary vane move, the volume in the pump cavity is reduced, the sucked gas is compressed, the gas is conveyed to the exhaust end through the gas path, and when the gas pressure at the exhaust end is increased to be higher than the atmospheric pressure, the gas pushes the exhaust valve plate open to enter the air, so that the purpose of exhausting is achieved.
The primary rotor, the primary rotary vane and the primary cylinder form the air pumping end of the vacuum pump; the second-stage rotor, the second-stage rotary sheet and the second-stage cylinder form an exhaust end of the vacuum pump.
Because the pressure that the end compressed gas brought in pumping during the work of vacuum pump, and the high-speed rotation of rotor and friction etc. that the rotor produced, the split type one-level and second grade rotor that leans on the rotor key-type among the prior art, it is abominable to use the operating mode, and the vacuum pump core gets into under the condition of foreign matter, and the connection position is and easily breaks, and is difficult to guarantee the part machining precision uniformity, and the processing degree of difficulty increases to easily cause the waste product.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an integral type rotor structure and rotary-vane vacuum pump of rotary-vane vacuum pump.
The utility model aims at realizing through the following technical scheme:
the utility model discloses an integrated rotor structure of a rotary-vane vacuum pump, which comprises a top end cylinder with a ladder-shaped and provided with a key slot, a middle end cylinder with a middle slot and a bottom end cylinder with a bottom slot;
the top end cylinder, the middle end cylinder and the bottom end cylinder are of concentric structures.
The utility model discloses a rotary-vane vacuum pump, integral type rotor structure including foretell rotary-vane vacuum pump.
By the foregoing the utility model provides a technical scheme can see out, the embodiment of the utility model provides an integral type rotor structure and rotary-vane vacuum pump of rotary-vane vacuum pump, simple structure, the processing of being convenient for, manufacturing process is simple, has reduced the rejection rate because of manufacturing process causes to easy to maintain, reduce cost and improve effect.
Drawings
FIG. 1 is a schematic connection diagram of a split type primary and secondary rotor structure in the prior art;
fig. 2 is a schematic view of an overall structure of an integrated rotor of a rotary-vane vacuum pump according to an embodiment of the present invention;
FIG. 3 is a schematic view of a connection end of the integrated rotor and the motor according to an embodiment of the present invention;
FIG. 4 is a schematic view of an exhaust end of an integrated rotor according to an embodiment of the present invention;
fig. 5 is an axial view of an integrated rotor according to an embodiment of the present invention.
In the figure:
1. a top end cylinder 2, a middle end cylinder 3, a bottom end cylinder 4 and a cylinder transition table; 1-1, a motor connecting end, 1-2, a bearing connecting end, 1-3, an oil pump rotary vane placing end, 2-1, a groove, 3-1, a groove, 4-1, an upper end cylindrical transition table, 4-2 and a lower end cylindrical transition table; 1-1-1, a key groove, 1-1-2, a threaded hole, 1-3-1 and a square through hole.
Detailed Description
Embodiments of the present invention will be described in further detail below. Details not described in the embodiments of the present invention belong to the prior art known to those skilled in the art.
The utility model discloses an integral type rotor structure of rotary-vane vacuum pump, the concrete implementation mode of its preferred is:
comprises a step-shaped top end cylinder provided with a key slot, a middle end cylinder provided with a slot in the middle and a bottom end cylinder provided with a slot at the bottom end;
the top end cylinder, the middle end cylinder and the bottom end cylinder are of concentric structures.
The middle-end cylinder is connected with the top-end cylinder and the bottom-end cylinder through cylindrical and concentric transition tables respectively.
The top end cylinder is divided into three stepped parts according to different functions;
the middle groove of the middle cylinder is axially arranged at the axis of the cylinder and the two sides of the cylinder are symmetrical;
the groove at the bottom end of the bottom end cylinder is positioned at the axis of the cylinder, the two sides of the cylinder are symmetrical, and the grooving direction is vertical to the groove formed in the middle end cylinder.
The integral rotor is integrally of an integrated structure formed by precisely machining cast iron bars.
The utility model discloses a rotary-vane vacuum pump, the concrete implementation of its preferred is:
the integrated rotor structure comprises the rotary vane vacuum pump.
The top end cylinder is connected with the motor through a coupling, a groove formed in the middle end cylinder is used for placing a primary rotary vane of the rotary vane vacuum pump, and a groove formed in the lower portion of the bottom end cylinder is used for placing a secondary rotary vane of the rotary vane vacuum pump.
The utility model discloses an integration rotor structure and rotary-vane vacuum pump of rotary-vane vacuum pump for replace traditional split type rotor, this integral type rotor greatly reduced the fault rate of vacuum pump, reduced the processing degree of difficulty and rejection rate, and guarantee machining precision and uniformity easily, interchangeability is good, is convenient for maintain, reduces cost and improves efficiency.
This integral type rotor is whole to be the integral structure that cast iron bar precision finishing formed, forms integral type rotor structure through adopting cast iron bar processing, optimizes the processing means, simplifies manufacturing procedure, practices thrift the processing cost, and has guaranteed that the basic principle is unchangeable, improves the machining precision, makes it maintain convenient and fast more.
The specific embodiment is as follows:
as shown in fig. 1 to 4, the utility model discloses an integral type rotor for rotary-vane vacuum pump of embodiment, this integral type rotor includes:
a stepped top end cylinder 1 provided with a key slot, a middle end cylinder 2 provided with a slot in the middle and a bottom end cylinder 3 provided with a slot at the bottom end; wherein the content of the first and second substances,
the step-shaped top end cylinder 1 provided with the key groove is positioned on one side of the middle end cylinder 2 with the middle groove, and the two cylinders are connected by an upper end cylinder transition table 4-1;
the bottom end cylinder 3 with the bottom end slot is positioned on the other side of the middle end cylinder 2 with the middle slot, and the two cylinders are connected by a lower end cylinder transition table 4-2;
the middle slotted middle end cylinder 2 is positioned between the cylinders 1 and 3.
The stepped top end cylinder 1 with the key groove is divided into three parts according to different functions, and is stepped due to different outer diameters. The upper end cylinder 1-1 is a connecting end with a motor, a key groove 1-1-1 (figure 3) is formed in the arc surface of the top side + end, so that the integrated rotor and the coupling are fixed conveniently by using a key, and a threaded hole 1-1-2 (figure 3) is formed in the center of the end surface of the top end of the cylinder, so that the integrated rotor and the coupling are fastened conveniently by using a screw; the middle end cylinder 1-2 is a connecting end with a bearing and is where the bearing is positioned; the lower end cylinder 1-3 is an oil pump rotary vane placing end, and is provided with a square through hole (1-3-1) for placing the oil pump rotary vane.
The middle end cylinder 2 with the middle groove is provided with a groove 2-1 for placing the first-level rotary vane therein, and the groove is positioned in the center of the cylinder and makes two sides of the cylinder symmetrical.
The stepped top end cylinder 1 provided with the key groove and the middle end cylinder 2 provided with the key groove are connected with the cylindrical transition table 4-1 which is concentric with the cylindrical transition table, so that the cylinder 1 and the cylinder 2 are connected firmly and are not easy to break.
The bottom end cylinder 3 with the groove at the bottom end is positioned at the axis of the cylinder, the groove 3-1 (figure 4) at the bottom end is positioned at the axis of the cylinder, two sides of the cylinder are symmetrical, and the groove direction is vertical to the groove formed by the middle end cylinder.
The bottom end cylinder 3 with the bottom end groove and the middle end cylinder 2 with the middle groove are connected through the cylindrical transition table 4-2 which is concentric with the cylindrical transition table, so that the cylinder 3 and the cylinder 2 are firmly connected and are not easy to break.
The stepped top end cylinder 1 provided with the key groove, the middle end cylinder 2 provided with the middle groove and the bottom end cylinder 3 provided with the bottom groove are concentric structures.
Above-mentioned integral type rotor wholly forms integral structure for cast iron bar processing.
Cast iron bar materials are preferably selected for the integrated rotor structure, processing is convenient, and high processing precision and fine management of an assembly flow can be realized.
The utility model discloses integral type rotor structure, simple structure, convenient to use, manufacturing process is simple, has reduced the fault rate of vacuum pump and the rejection rate because of the casting process causes to easy to maintain reduces cost and improves effect.
An embodiment of the utility model provides a rotary-vane vacuum pump, including integral type rotor structure, this integral type rotor structure adopts the integral type rotor structure of the above-mentioned rotary-vane vacuum pump that gives. Because the integrated rotor structure precisely processed by the cast iron bar is adopted, the structure is simple, the processing is easy, and the maintenance is convenient.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. An integrated rotor structure of a rotary vane vacuum pump is characterized by comprising a top end cylinder, a middle end cylinder and a bottom end cylinder, wherein the top end cylinder is in a step shape and is provided with a key slot;
the top end cylinder, the middle end cylinder and the bottom end cylinder are concentric structures;
the middle-end cylinder is respectively connected with the top-end cylinder and the bottom-end cylinder through cylindrical and concentric transition tables;
the top end cylinder comprises a motor connecting end, a bearing connecting end and an oil pump rotary vane placing end;
the middle of the middle cylinder is provided with a groove, and the groove is axially arranged at the axis of the cylinder and enables the two sides of the cylinder to be symmetrical;
the bottom end of the bottom end cylinder is provided with a groove, the groove is positioned at the axis of the cylinder and enables two sides of the cylinder to be symmetrical, and the groove direction is vertical to the groove formed in the middle end cylinder.
2. An integral rotor structure of a rotary vane vacuum pump as claimed in claim 1, wherein the integral rotor is integrally formed of cast iron bar.
3. A rotary vane vacuum pump characterized by comprising an integrated rotor structure of the rotary vane vacuum pump of claim 1 or 2.
4. A rotary vane vacuum pump as claimed in claim 3 wherein the top cylinder is coupled to a motor by a coupling, the middle cylinder having a slot for receiving a primary vane of the rotary vane vacuum pump and the bottom cylinder having a slot for receiving a secondary vane of the rotary vane vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021771931.9U CN213598184U (en) | 2020-08-21 | 2020-08-21 | Integral rotor structure of rotary-vane vacuum pump and rotary-vane vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021771931.9U CN213598184U (en) | 2020-08-21 | 2020-08-21 | Integral rotor structure of rotary-vane vacuum pump and rotary-vane vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213598184U true CN213598184U (en) | 2021-07-02 |
Family
ID=76585339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021771931.9U Active CN213598184U (en) | 2020-08-21 | 2020-08-21 | Integral rotor structure of rotary-vane vacuum pump and rotary-vane vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213598184U (en) |
-
2020
- 2020-08-21 CN CN202021771931.9U patent/CN213598184U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213598184U (en) | Integral rotor structure of rotary-vane vacuum pump and rotary-vane vacuum pump | |
| JP4466627B2 (en) | Manufacturing method of hermetic rotary compressor | |
| CN207195168U (en) | Double triangle impeller pump | |
| CN113027760B (en) | Shaft type fixed piston for air compressor and air compressor with same | |
| CN209761720U (en) | large-displacement volume rotary compressor | |
| CN210343701U (en) | Integrated screw vortex two-stage compressor | |
| CN111963437B (en) | Integrated screw vortex two-stage compressor | |
| CN213331532U (en) | Secondary cylinder structure of high-pumping-speed rotary vane vacuum pump and high-pumping-speed rotary vane vacuum pump | |
| CN107269529B (en) | Rotary vane compressor | |
| CN207673541U (en) | The primary rotor and rotary-vane vaccum pump of rotary-vane vaccum pump | |
| KR20210125993A (en) | Rotor Compression Assemblies, Compressors and Air Conditioning Equipment | |
| CN208169118U (en) | Rotary-vane vaccum pump secondary rotor and rotary-vane vaccum pump | |
| CN202545248U (en) | Double-cylinder rotary compressor | |
| CN201502524U (en) | Gas-liquid mixing pump | |
| CN2117480U (en) | Oscillating rotary machine for converting mechanical energy into pressure | |
| CN101392750B (en) | Dry vacuum pump | |
| CN101629567B (en) | Gas-liquid mixing pump | |
| CN219911142U (en) | Rotary compressor | |
| CN209943107U (en) | Pump coupling for rotary vane type vacuum pump and rotary vane type vacuum pump | |
| CN204610276U (en) | A kind of opposed type synchronous-rotation multiphase mixture pump | |
| CN213331531U (en) | Primary cylinder structure of high-pumping-speed rotary vane vacuum pump and high-pumping-speed rotary vane vacuum pump | |
| CN109667759B (en) | Double-stage liquid ring vacuum pump and assembly method thereof | |
| CN201991769U (en) | Vane pump | |
| CN214998208U (en) | Gas compressor | |
| CN112343818B (en) | Pump body structure and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |