CN210484044U

CN210484044U - Driving structure of double-motor pressure pump

Info

Publication number: CN210484044U
Application number: CN201920901012.XU
Authority: CN
Inventors: 蒋友荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-05-08
Anticipated expiration: 2029-06-14

Abstract

The utility model discloses a force pump structure provides a simple structure, and the cooling effect is good, and the running cost is low, and energy-concerving and environment-protective bi-motor force pump drive structure has solved the relative complicacy of force pump drive structure that exists among the prior art, and the reliability is poor, and the energy consumption is high, and the water-cooling leads to the high technical problem of running cost, and it includes that pump chamber and each other joining in marriage two pump rotors of meshing connection in the pump chamber, pump rotor's pump rotor shaft passes the pump chamber respectively and is connecting motor rotor's pivot one end, and two motor rotors keep synchronous reverse motion in locating same motor stator, and the other end of pivot extends to motor stator outside, and is equipped with the fan blade respectively in the outer pivot that corresponds of motor stator.

Description

Driving structure of double-motor pressure pump

Technical Field

The utility model relates to a force pump structure especially relates to a simple structure, convenient to use, and the cooling effect is good, energy-concerving and environment-protective bi-motor force pump drive structure.

Background

The force pump generally includes vacuum pump and compressor, and both are the equipment of industry field common application, and the kind of vacuum pump is many, and wherein roots's vacuum pump, claw type dry vacuum pump, screw rod dry vacuum pump are more common double-rod vacuum pump, and its theory of operation is the same basically, passes through the driving gear on the shaft coupling driving shaft by a motor usually, and the driving gear drives driven gear again, and driving, driven gear are transmission ratio 1: the synchronous reverse bevel gear of 1 carries out gas transmission under the mutual meshing relationship of the driving gear and the driven gear, thereby realizing the operation of vacuumizing. However, this structure has the following problems: 1. the structure is relatively complex, and the sealing parts are numerous, so the reliability is poor; 2. the gears are in meshing transmission, so that the operation noise is high and the energy consumption is high; 3. in order to ensure normal operation, a water cooling system is additionally arranged to cool the pump body by water cooling, so that the operation cost is high.

Disclosure of Invention

The utility model mainly provides a simple structure, the cooling effect is good, and the running cost is low, and energy-concerving and environment-protective bi-motor force pump drive structure has solved the force pump drive structure that exists among the prior art complicated relatively, and the reliability is poor, and the energy consumption is high, and the water-cooling leads to the technical problem that the running cost is high etc..

The above technical problem of the present invention can be solved by the following technical solutions: the utility model provides a bi-motor force pump drive structure, includes that pump chamber and two pump rotors of mutually supporting meshing connection in the pump chamber, the pump rotor shaft of pump rotor passes the pump chamber respectively and is connecting motor rotor's pivot one end, and two motor rotors keep synchronous reverse operation in locating same motor stator, and outside the other end of pivot extended to motor stator, and be equipped with the fan blade respectively in the outer pivot that corresponds of motor stator. The pump rotor shafts of the two pump rotors penetrate through the pump cavity and then are respectively connected with one motor rotor, and the two motor rotors are covered in the same motor stator to keep synchronous reverse operation, namely, one motor stator is internally provided with the two motor rotors; and the fan blades are respectively arranged on the rotating shaft outside the motor stator, namely double-fan-blade turbulent flow heat dissipation is adopted, the heat dissipation effect is good, a water cooling system does not need to be additionally arranged, and the operation cost is low.

Preferably, ultrathin synchronous gears are respectively arranged on the rotating shafts corresponding to the fan blade ends, and the two ultrathin synchronous gears are in meshed connection. Synchronous reverse operation can be realized to the bi-motor, but position deviation appears easily, through set up ultra-thin synchronous gear in the corresponding pivot of fan blade end, can be under special operating mode, if start-up machine, pump chamber pressure differential such as unusual outage changes greatly, and lead to under the asynchronous condition of pump rotor by pressure differential, make the pump rotor keep synchronous reverse operation in real time through synchronous gear, the pump rotor operation that prevents that pressure differential change from leading to is asynchronous, avoid pump rotor scraping and wearing and tearing, the life of extension force pump.

More preferably, the width of the ultra-thin synchronizing gear is 8 to 10 mm. Because the ultrathin synchronous gear only plays a role under extreme conditions, the gear can meet the use requirement only by keeping proper strength, so that the gear can be used with proper width, the cost is saved, and the structure of a pump body can be more compact; meanwhile, the ultrathin synchronous gear is positioned at the outer side end of the rotating shaft, so that the assembly and disassembly are convenient.

Preferably, the two fan blade housings are arranged in the same fan blade housing. The two blades can be in a centrifugal type or an axial flow type, or one blade is in a centrifugal type, the other blade is in an axial flow type, the two blades are positioned in the same blade housing, and compared with the single-blade air cooling, the double-blade fan can realize the turbulent flow effect in the blade housing, and further strengthen the cooling effect.

Preferably, a temperature sensor is arranged in the pump cavity, and the temperature sensor is connected to a controller and controls the rotating speed of the motor rotor through the controller. Through setting up temperature sensor, can accurate detection pump intracavity temperature, auto-stop when the temperature surpasss the setting value in the pump chamber to avoid the too high pump rotor clearance that leads to of temperature rise to diminish, further cause proruption situation such as pump rotor "kills", ensure the operation of force pump safe and reliable.

Preferably, a pressure sensor is arranged at the air inlet of the pump cavity, and the pressure sensor is connected to a controller and controls the rotating speed of the motor rotor through the controller. Through setting up pressure sensor, can be through the air inlet pressure of pressure sensor automated inspection pump chamber, the controller can be according to air inlet pressure automatically regulated electric motor rotor's rotational speed, when air inlet pressure is great promptly, suitably reduces motor speed, and when air inlet pressure is less, suitably improves motor speed to rational distribution motor power practices thrift the energy consumption.

Preferably, the motor stator is embedded and fixed in the motor housing. The motor stator is reliably positioned.

The fan blades can also be in a centrifugal type, and preferably, the fan blades are in an axial flow type. Axial flow type realizes double air cooling, and the radiating effect is good.

Therefore, the utility model discloses a two motor force pump drive structures have following advantage:

1. the double motors are used for driving, so that the operation reliability is good and the energy consumption is low;

2. double-fan-blade air cooling is adopted, so that the cooling effect is good, and the operation cost is low;

3. the ultra-thin synchronous gear is arranged on the rotating shaft corresponding to the fan blade end, so that the pump rotor can keep synchronous reverse operation in real time under special working conditions, the scraping and abrasion of the pump rotor are avoided, the service life of the pressure pump is prolonged, and the pressure pump is convenient to assemble and disassemble;

4. through setting up temperature sensor and pressure sensor, both cooperate controller intelligent control pressure pump operating condition, ensure the safe and reliable operation of pressure pump.

Description of the drawings:

FIG. 1 is a schematic structural view of a driving structure of a dual-motor pressure pump of the present invention;

fig. 2 is a partial cross-sectional view of the present invention;

figure 3 is a transverse cross-sectional view of the pump chamber of the present invention.

In the figure: pump chamber 1, pump rotor 2, pump rotor axle 21, motor rotor 3, pivot 31, motor stator 4, fan blade 5, fan blade housing 6, ultra-thin synchronous gear 7, temperature sensor 8, pressure sensor 9, pump chamber body 10, heat dissipation housing 11.

The specific implementation mode is as follows:

the technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b):

as shown in fig. 1 and 2, below use the screw rod dry pump as an example, the utility model discloses a two motor force pump drive structure, including pump chamber 1 and two pump rotors 2 of intermeshing engagement connection in pump chamber 1, as shown in fig. 3, the pump chamber body 10 that pump chamber 1 corresponds is the cast iron material, and in order to improve the radiating effect of pump, pump chamber body 10 inlays the dress and fixes in the heat dissipation housing 11 of aluminium matter, has a plurality of radiating fin outside heat dissipation housing 11. The pump rotor shafts 21 of the pump rotors 2 are parallel to each other, the same side ends of the pump rotors 2 respectively penetrate through the pump cavity 1 and then are respectively connected with the inner side end of a rotating shaft 31 of one motor rotor 3, the two motor rotors 3 are positioned in the same motor stator 4, the motor stators 4 are embedded and fixed in corresponding motor housing, and the two motor rotors 3 are enabled to keep synchronous reverse operation through a control chip, the outer port of the motor housing is covered with a fan blade housing 6, the outer ends of the two rotating shafts 31 extend into the fan blade housing 6, and two corresponding rotating shafts 31 in the fan blade housing 6 are respectively provided with a fan blade 5, the two fan blades 5 are axial flow fan blades, two rotating shafts 31 between the fan blade 5 and the motor rotor 3 are respectively coaxially and keyed with an ultrathin synchronous gear 7, the width of each ultrathin synchronous gear 7 is 9mm, and the two ultrathin synchronous gears 7 are kept in meshed connection. And a temperature sensor 8 is arranged on a corresponding heat dissipation housing 11 outside the pump cavity 1, and the temperature sensor 8 is connected to a controller and controls the rotating speed of the motor rotor 3 through the controller. A pressure sensor 9 is arranged at an air inlet of the pump cavity 1, and the pressure sensor 9 is connected to a controller and controls the rotating speed of the motor rotor 3 through the controller.

The specific embodiments described herein are merely illustrative of the principles of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a two motor pressure pump drive structure, includes pump chamber (1) and two pump rotor (2) that mutually support the meshing and connect in pump chamber (1), its characterized in that: pump rotor shaft (21) of pump rotor (2) pass pump chamber (1) respectively and are being connected pivot (31) one end of electric motor rotor (3), and two electric motor rotor (3) are located and are kept synchronous reverse motion in same motor stator (4), and outside the other end of pivot (31) extended to motor stator (4), and were equipped with fan blade (5) respectively on motor stator (4) outer corresponding pivot (31).

2. The dual-motor pressure pump driving structure of claim 1, wherein: and ultrathin synchronous gears (7) are respectively arranged on the rotating shafts (31) corresponding to the fan blade (5) ends, and the two ultrathin synchronous gears (7) are meshed and connected.

3. The dual-motor pressure pump driving structure of claim 2, wherein: the width of the ultrathin synchronous gear (7) is 8-10 mm.

4. The dual-motor pressure pump driving structure of claim 1, wherein: the two fan blades (5) are covered in the same fan blade cover (6).

5. The dual-motor pressure pump driving structure of claim 1, wherein: a temperature sensor (8) is arranged in the pump cavity (1), and the temperature sensor (8) is connected to a controller and controls the rotating speed of the motor rotor (3) through the controller.

6. The dual-motor pressure pump driving structure of claim 1, wherein: and a pressure sensor (9) is arranged at an air inlet of the pump cavity (1), and the pressure sensor (9) is connected to a controller and controls the rotating speed of the motor rotor (3) through the controller.

7. The dual-motor pressure pump driving structure of claim 1, wherein: the motor stator (4) is embedded and fixed in the motor housing.

8. The dual-motor pressure pump driving structure of claim 1, wherein: the fan blades (5) are axial-flow type.