CN212643051U - Double-motor screw machine head - Google Patents
Double-motor screw machine head Download PDFInfo
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- CN212643051U CN212643051U CN202021024112.8U CN202021024112U CN212643051U CN 212643051 U CN212643051 U CN 212643051U CN 202021024112 U CN202021024112 U CN 202021024112U CN 212643051 U CN212643051 U CN 212643051U
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Abstract
The utility model discloses a double-motor screw machine head, which comprises a two-stage compression main machine, a first-stage motor part and a second-stage motor part; the two-stage compression main machine comprises an integrated front shell and two screw rods, wherein the two screw rods can be rotatably connected to the integrated front shell, and the first-stage motor part and the second-stage motor part are respectively in transmission connection with the two screw rods; the shell is equipped with one-level air inlet, one-level gas outlet, second grade air inlet, second grade gas outlet before this integral type, switches on the air duct of one-level gas outlet and second grade air inlet and can let in the oil spout pipeline of coolant oil, and this air duct has the concave cavity of the recessed setting in shell top surface before the integral type, and the sealed lid that has connect of this cavity opening has sealed lid, should spout the gas that oil pipe way switch-on cavity passes through the cavity with the oil spout cooling. It has the following advantages: the oil injection pipeline is communicated with the concave cavity to cool the gas passing through the concave cavity, and the primary compressed gas is cooled and then compressed in a secondary mode, so that the compression efficiency is improved, and the output power of the motor is reduced.
Description
Technical Field
The utility model relates to an air compression equipment especially relates to a bi-motor screw rod aircraft nose.
Background
The air compressor is the main body of the air source device, converts the mechanical energy of the prime motor into the gas pressure energy, and is the air pressure generating device for compressing the air. With the development of national economy, higher requirements are put forward on the performance, reliability, energy conservation and environmental protection of compressor products. Most of traditional air compressors are one-level compressors, have high pressure ratio and high energy consumption, and waste a large amount of energy to a certain extent. The two-stage compression is proposed aiming at the defects, the air is firstly compressed by one stage, the air compressed by one stage is compressed by two stages, the energy consumption can be reduced by adopting the two-stage compression to compare with the one-stage compression, but the air compressed by one stage is directly compressed by two stages, so the compression performance has the possibility of further improving, and the energy consumption has the possibility of further improving.
SUMMERY OF THE UTILITY MODEL
The utility model provides a bi-motor screw rod aircraft nose, it has overcome the not enough that the cavity press exists in the background art.
The utility model provides an adopted technical scheme of its technical problem is: a double-motor screw machine head comprises a two-stage compression main machine, a first-stage motor part and a second-stage motor part; the two-stage compression main machine comprises an integrated front shell and two screw rods, wherein the two screw rods can be rotatably connected to the integrated front shell, and the first-stage motor part and the second-stage motor part are respectively in transmission connection with the two screw rods; the shell is equipped with one-level air inlet, one-level gas outlet, second grade air inlet, second grade gas outlet before this integral type, switches on the air duct of one-level gas outlet and second grade air inlet and can let in the oil spout pipeline of coolant oil, and this air duct has the concave cavity of the recessed setting in shell top surface before the integral type, and the sealed lid that has connect of this cavity opening has sealed lid, should spout the gas that oil pipe way switch-on cavity passes through the cavity with the oil spout cooling.
In one embodiment: the shell is equipped with the one-level compression chamber of switch-on one-level air inlet and one-level gas outlet and the second grade compression chamber of switch-on second grade air inlet and second grade gas outlet before this integral type, and this one-level compression chamber and second grade compression chamber are connected respectively to these two screw rods.
In one embodiment: the inner wall of the concave cavity is provided with a plurality of first oil injection ports capable of atomizing oil injection, and the first oil injection ports are communicated with an oil injection pipeline.
In one embodiment: the plurality of first oil injection ports are arranged on the cavity bottom and the cavity side wall of the concave cavity.
In one embodiment: the air passage is also provided with a first passage and a second passage, the cavity is communicated with the primary air outlet through the first passage, and the cavity is communicated with the secondary air inlet through the second passage; the concave cavity is provided with a first cooling pipeline communicated with the primary motor part, the first cooling pipeline is provided with a second oil nozzle, and the primary motor part is cooled through the second oil nozzle; the second passage is provided with a second cooling pipeline communicated with the second-stage motor part, the second cooling pipeline is provided with a third oil injection port, and the second-stage motor part is cooled through the third oil injection port.
In one embodiment: the primary motor part comprises a primary motor shell, a primary bearing seat provided with a primary bearing and a primary motor provided with a primary main shaft, the primary bearing seat is fixedly arranged between the integrated front shell and the primary motor shell, the primary main shaft is coaxially and integrally formed and fixedly connected with a primary male rotor, the primary motor is connected in the primary motor shell in a mounting mode, the primary male rotor penetrates through the primary bearing, and the primary male rotor is in transmission connection with a screw rod; the second-stage motor part comprises a second-stage motor shell, a second-stage bearing seat provided with a second-stage bearing and a second-stage motor provided with a second-stage main shaft, the second-stage bearing seat is fixedly arranged between the integrated front shell and the second-stage motor shell, the second-stage main shaft is fixedly connected with a second-stage male rotor in a coaxial and integrated mode, the second-stage motor is connected in the second-stage motor shell in a connecting mode, the second-stage male rotor penetrates through the second-stage bearing, and the second-stage male rotor is connected.
Compared with the background technology, the technical scheme has the following advantages:
the oil injection pipeline is communicated with the concave cavity to cool the gas passing through the concave cavity, and the primary compressed gas is cooled and then compressed in a secondary mode, so that the compression efficiency is improved, and the output power of the motor is reduced.
Drawings
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
FIG. 1 is a perspective view of an embodiment of a horizontal screw head.
FIG. 2 is a perspective view of an embodiment of a horizontal screw head with a seal cover removed.
FIG. 3 is a cross-sectional schematic view of an embodiment of a one-piece front shell.
Detailed Description
Referring to fig. 1 to 3, a dual-motor screw head includes a two-stage compression main body 1, a first-stage motor portion 2, and a second-stage motor portion 3.
This two-stage compression host 1 includes shell 11 and two screw rods before the integral type, and shell 11 is equipped with one-level compression chamber and second grade compression chamber before this integral type, and this one-level compression chamber and second grade compression chamber are connected respectively to this two screw rods so that this two screw rods can both rotate to be connected in shell 11 before the integral type, and this two screw rod levels and parallel arrangement are in order to constitute horizontal structure. The horizontal structure is adopted, the two screws are horizontally and parallelly arranged, the machine head is highly integrated, and the assembling efficiency is high.
The shell 11 is equipped with one-level air inlet 111, one-level gas outlet, second grade air inlet, second grade gas outlet 112 before this integral type, switches on the air duct of one-level gas outlet and second grade air inlet and can let in the oil spout pipeline of cooling oil, and this one-level compression chamber switches on one-level air inlet 111 and one-level gas outlet, and this second grade compression chamber switches on second grade air inlet and second grade gas outlet 112. The air passage has a cavity 113 formed by recessing the top surface of the integrated front housing 11, a first passage 114 and a second passage 115, the cavity 113 is open and sealed with a sealing cover 116, the first passage 114 connects the primary air outlet and the cavity 113, and the second passage 115 connects the secondary air inlet and the cavity 113. This one-level air inlet 111, one-level gas outlet, second grade air inlet, second grade gas outlet 112 and air duct all integrate shell 11 before the integral type, connect fewly, reduce the pipe connection, reduce the leak point, reduce loss of pressure, improve assembly efficiency. The oil injection pipeline is also communicated with the concave cavity 113, the oil injection pipeline is communicated with the concave cavity 113 to cool the gas passing through the concave cavity, the middle cooling is realized, the compression efficiency is improved, and the output power of the motor is reduced. The inner wall of the cavity 113 is provided with a plurality of first oil injection ports 117, and the first oil injection ports 117 are communicated with an oil injection pipeline to spray oil in an atomizing manner so as to cool the gas at the primary gas outlet and improve the intermediate cooling efficiency. The cavity 113 is provided with a first cooling pipeline 119 communicated with the primary motor part, the first cooling pipeline is provided with a second oil injection port, and the primary motor part is cooled through the second oil injection port to enter the primary motor shell 21 so as to lubricate the primary bearing seat 22; the second passage 115 is provided with a second cooling line 118 which is connected to the secondary motor part, the second cooling line being provided with a third oil jet through which the secondary motor part is cooled to enter the secondary motor housing 31 to lubricate the secondary bearing seat 32.
This one-level motor part 2 and second grade motor part 3 are two screw rods of transmission connection respectively, among the specific structure: the primary motor part 2 comprises a primary motor shell 21, a primary bearing seat 22 provided with a primary bearing and a primary motor with a primary main shaft, wherein the primary bearing seat 22 is fixedly arranged between the integrated front shell 1 and the primary motor shell 21, the primary main shaft is coaxially and integrally formed and fixedly connected with a primary male rotor, the primary motor is assembled in the primary motor shell, the primary male rotor penetrates through the primary bearing, and the primary male rotor is in transmission connection with a screw rod; this second grade motor part 3 includes second grade motor casing 31, is equipped with the second grade bearing frame 32 of second grade bearing and has the second grade motor of second grade host shaft, and this second grade bearing frame 32 sets firmly before the integral type between casing 1 and second grade motor casing 31, and the coaxial integrated into one piece rigid coupling of this second grade host shaft has the positive rotor of second grade, and this second grade motor dress connects in the second grade motor casing and the positive rotor of second grade passes the second grade bearing, and another screw rod is connected in the transmission of this positive rotor of second grade. The main machine shaft is coaxially and integrally formed and fixedly connected with the male rotor, so that the transmission efficiency is improved, and the structure is compact. The motor is for example an asynchronous motor.
Air enters the machine head from a primary air inlet 111, a primary motor drives a coaxial primary male rotor, and the primary male rotor drives a primary screw matched with the primary male rotor to rotate, so that the air is compressed in a primary compression cavity in a primary mode, and the compressed air enters a secondary compression cavity after being cooled in the middle; the coaxial second-stage male rotor is driven by the second-stage motor, and meanwhile, the second-stage male rotor drives the second-stage screw matched with the second-stage male rotor to rotate, so that air is compressed in the second-stage compression cavity in a second stage, and the compressed air is discharged from the second-stage air outlet 112.
The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited by this description, and all equivalent changes and modifications made within the scope and the specification of the present invention should be covered by the present invention.
Claims (6)
1. A double-motor screw machine head comprises a two-stage compression main machine, a first-stage motor part and a second-stage motor part; the method is characterized in that: the two-stage compression main machine comprises an integrated front shell and two screw rods, wherein the two screw rods can be rotatably connected to the integrated front shell, and the first-stage motor part and the second-stage motor part are respectively in transmission connection with the two screw rods; the shell is equipped with one-level air inlet, one-level gas outlet, second grade air inlet, second grade gas outlet before this integral type, switches on the air duct of one-level gas outlet and second grade air inlet and can let in the oil spout pipeline of coolant oil, and this air duct has the concave cavity of the recessed setting in shell top surface before the integral type, and the sealed lid that has connect of this cavity opening has sealed lid, should spout the gas that oil pipe way switch-on cavity passes through the cavity with the oil spout cooling.
2. The dual-motor screw machine head as claimed in claim 1, wherein: the shell is equipped with the one-level compression chamber of switch-on one-level air inlet and one-level gas outlet and the second grade compression chamber of switch-on second grade air inlet and second grade gas outlet before this integral type, and this one-level compression chamber and second grade compression chamber are connected respectively to these two screw rods.
3. The dual-motor screw machine head as claimed in claim 1, wherein: the inner wall of the concave cavity is provided with a plurality of first oil injection ports capable of atomizing oil injection, and the first oil injection ports are communicated with an oil injection pipeline.
4. The dual-motor screw machine head as claimed in claim 3, wherein: the plurality of first oil injection ports are arranged on the cavity bottom and the cavity side wall of the concave cavity.
5. The dual-motor screw machine head as claimed in claim 1, wherein: the air passage is also provided with a first passage and a second passage, the cavity is communicated with the primary air outlet through the first passage, and the cavity is communicated with the secondary air inlet through the second passage; the concave cavity is provided with a first cooling pipeline communicated with the primary motor part, the first cooling pipeline is provided with a second oil nozzle, and the primary motor part is cooled through the second oil nozzle; the second passage is provided with a second cooling pipeline communicated with the second-stage motor part, the second cooling pipeline is provided with a third oil injection port, and the second-stage motor part is cooled through the third oil injection port.
6. The dual-motor screw head as claimed in any one of claims 1 to 5, wherein: the primary motor part comprises a primary motor shell, a primary bearing seat provided with a primary bearing and a primary motor provided with a primary main shaft, the primary bearing seat is fixedly arranged between the integrated front shell and the primary motor shell, the primary main shaft is coaxially and integrally formed and fixedly connected with a primary male rotor, the primary motor is connected in the primary motor shell in a mounting mode, the primary male rotor penetrates through the primary bearing, and the primary male rotor is in transmission connection with a screw rod; the second-stage motor part comprises a second-stage motor shell, a second-stage bearing seat provided with a second-stage bearing and a second-stage motor provided with a second-stage main shaft, the second-stage bearing seat is fixedly arranged between the integrated front shell and the second-stage motor shell, the second-stage main shaft is fixedly connected with a second-stage male rotor in a coaxial and integrated mode, the second-stage motor is connected in the second-stage motor shell in a connecting mode, the second-stage male rotor penetrates through the second-stage bearing, and the second-stage male rotor is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021024112.8U CN212643051U (en) | 2020-06-05 | 2020-06-05 | Double-motor screw machine head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021024112.8U CN212643051U (en) | 2020-06-05 | 2020-06-05 | Double-motor screw machine head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212643051U true CN212643051U (en) | 2021-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021024112.8U Active CN212643051U (en) | 2020-06-05 | 2020-06-05 | Double-motor screw machine head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212643051U (en) |
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2020
- 2020-06-05 CN CN202021024112.8U patent/CN212643051U/en active Active
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