CN210484058U - Small-sized double-motor pressure pump driving structure - Google Patents

Abstract

The utility model discloses a force pump structure provides a compact structure, and the cooling effect is good, and the running cost is low, and energy-concerving and environment-protective small-size 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 is bulky, inconvenient carrying and use to and the water-cooling leads to technical problem such as running cost height, and it includes pump chamber and two pump rotors that mutually join in marriage the meshing and connect in the pump chamber, pump rotor's pump rotor axle reverse passes the pump chamber and is connecting motor rotor's pivot one end respectively, and two motor rotors pass through control chip and keep synchronous reverse operation, and the other end of pivot extends to outside motor stator, and is equipped with the fan blade respectively in the outer pivot that corresponds of motor stator.

Description

Small-sized double-motor pressure pump driving structure

Technical Field

The utility model relates to a force pump structure especially relates to a convenient to use, and compact structure is reasonable, and the cooling effect is good, energy-concerving and environment-protective small-size 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; 4. it is bulky and inconvenient to carry and use.

Disclosure of Invention

The utility model mainly provides a compact structure, the cooling effect is good, and the running cost is low, and energy-concerving and environment-protective small-size 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 is bulky, inconvenient carrying and use to 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 motor rotor structure comprises a pump cavity and two pump rotors which are mutually matched and meshed to be connected in the pump cavity, wherein a pump rotor shaft of each pump rotor reversely penetrates through the pump cavity to be connected with one end of a rotating shaft of a motor rotor, the two motor rotors keep synchronous reverse operation through a control chip, the other end of the rotating shaft extends out of a motor stator, and fan blades are arranged on the rotating shafts corresponding to the motor stators respectively. The pump rotor shafts of the two pump rotors penetrate through the pump cavity in the reverse direction and then are respectively connected with one motor rotor, the two motor rotors keep synchronous reverse operation through the control chip, and compared with the traditional structure of meshing the main gear and the slave gear, the structure is simple, the reliability is good, the operation noise is low, the power is low, and the energy consumption is low; the fan blades are arranged at the outer side end of the rotating shaft respectively, 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; the small-size force pump discharge capacity is less, in order to practice thrift manufacturing cost and conveniently carry and use, the pump body of small-size pump often is small and exquisite relatively, often has the problem of laying installation space not enough when two motors homonymies are laid, and two motors are located the both sides of pump chamber respectively, can provide sufficient space for the installation of laying of electric motor rotor, make the complete machine structure compacter reasonable simultaneously.

Preferably, the pump rotor shafts are respectively provided with ultrathin synchronous gears, and the two ultrathin synchronous gears are meshed and connected. Synchronous reverse operation can be realized to the bi-motor, but positional deviation appears easily, through set up ultra-thin synchronous gear on pump rotor shaft, can be under special operating mode, if the 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 to lead 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 fan blade is an axial flow fan blade or a centrifugal fan blade. 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, and compared with single-blade air cooling, the double-blade fan can achieve a turbulent flow effect in the blade cover shell, and further strengthens 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 pump cavity body corresponding to the pump cavity is embedded in the heat dissipation casing. The pump cavity body and the heat dissipation housing adopt a split structure, so that the heat dissipation effect of the pump body can be enhanced by adopting different materials while the strength of the pump cavity body and the heat dissipation housing are ensured, for example, the pump cavity body is made of cast iron, the heat dissipation housing is made of aluminum, and heat dissipation ribs of the heat dissipation housing with different shapes and lengths can be selected according to pressure pumps with different types and specifications so as to adapt to the heat dissipation requirements of the pressure pumps; meanwhile, a split type embedding structure is adopted, after the pressure pump can be intensively embedded and processed, the pressure pump cavity length of different specifications can be cut in real time, the universality is good, and the production efficiency is high.

Therefore, the utility model discloses a small-size two motor force pump drive structure has following advantage:

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

2. the double motors are respectively arranged on two sides of the pump cavity, so that enough installation space is provided for the arrangement and installation of the motors, and the structure of the whole machine is more compact and reasonable;

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

4. the ultra-thin synchronous gear is arranged on the pump rotor shaft, so that the pump rotor can keep synchronous reverse operation in real time under special working conditions, 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;

5. 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 small-sized dual-motor pressure pump of the present invention;

fig. 2 is a schematic view of the mounting of the pump chamber body and the heat-dissipating casing in 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 fig. 2, a screw dry pump is taken as an example below, the driving structure of the dual-motor pressure pump of the present invention includes a pump cavity 1 and two pump rotors 2 which are engaged with each other and connected in the pump cavity 1, a pump cavity body 10 corresponding to the pump cavity 1 is made of cast iron, in order to improve the heat dissipation effect of the pump, the pump cavity body 10 is embedded and fixed in an aluminum heat dissipation housing 11, and a plurality of heat dissipation fins are provided outside the heat dissipation housing 11. The pump rotor shafts 21 of the pump rotors 2 are parallel to each other, the two pump rotor shafts 21 extend through the pump cavity 1 in the reverse direction and then are respectively connected with one motor rotor 3, a motor stator 4 covered outside the motor rotor 3 is embedded and fixed in a corresponding motor housing, the outer side ends of rotating shafts 31 of the two motor rotors 3 are respectively and coaxially provided with one fan blade 5, the two fan blades 5 are axial flow fan blades, the fan blades 5 are covered in corresponding fan blade housings 6, the two motor rotors 3 are controlled by a control chip to keep synchronous reverse operation, the right side ends of the pump rotor shafts 21 in the pump cavity 1 are respectively and coaxially connected with an ultrathin synchronous gear 7 through keys, the width of the 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 (7)

1. The utility model provides a small-size two motor force 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: the pump rotor shaft (21) of the pump rotor (2) reversely penetrates through the pump cavity (1) and is connected with one end of a rotating shaft (31) of the motor rotor (3) respectively, the two motor rotors (3) keep synchronous reverse operation through a control chip, the other end of the rotating shaft (31) extends out of the motor stator (4), and fan blades (5) are arranged on the rotating shaft (31) corresponding to the motor stator (4) respectively.

2. The driving structure of a small-sized dual-motor pressure pump according to claim 1, wherein: the pump rotor shaft (21) is respectively provided with an ultrathin synchronous gear (7), and the two ultrathin synchronous gears (7) are meshed and connected.

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

4. The driving structure of a small-sized dual-motor pressure pump according to claim 1, wherein: the fan blades (5) are axial flow or centrifugal fan blades.

5. The driving structure of a small-sized dual-motor pressure pump according to 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 driving structure of a small-sized dual-motor pressure pump according to 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 driving structure of a small-sized dual-motor pressure pump according to claim 1, wherein: and a pump cavity body (10) corresponding to the pump cavity (1) is embedded in the heat dissipation housing (11).

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