CN207583637U - Water pump all-in-one machine - Google Patents

Abstract

The utility model provides a kind of water pump all-in-one machine, and including motor section and water pump portion, the water pump all-in-one machine further includes support base and main shaft, wherein：The support base is installed with clutch shaft bearing and second bearing between the motor section and water pump portion in the support base；The main shaft is fixed, and the first segment of the main shaft extend into the motor section, second segment extend into the water pump portion by the clutch shaft bearing and second bearing installation；The rotor of the motor section is attached to the first segment of the main shaft, and the impeller in the water pump portion is installed in the second segment of the main shaft.Main shaft is fixedly mounted by the clutch shaft bearing in support base and second bearing in the utility model, and the impeller of the rotor of motor and water pump is installed to same main shaft, so as to while effectively save cost, reduce the failure rate of bearing.

Description

Water pump all-in-one machine

Technical field

The utility model is related to water pump field, more specifically to a kind of water pump all-in-one machine.

Background technology

According to statistics, the power consumption of water pump accounts for about the 20% of national gross generation, therefore pump efficiency is improved for China Energy-saving and emission-reduction have a very important significance, and wherein frequency converter plays a key effect in energy-saving and emission-reduction.

At present, water pump industry occur all-in-one machine product form variation, as shown in Figure 1, water pump all-in-one machine by motor 11, become Frequency device 12 and water pump 13 are integrated together.Water pump all-in-one machine have the characteristics that it is highly integrated, facilitate installation, save space；And And the reliability of water pump all-in-one machine is relatively strong, degree of protection, vibration class are also obviously improved, and failure rate is remarkably decreased；In addition, The full conversion efficiency that water pump all-in-one machine also has the characteristics that improves, obvious energy conservation, therefore water pump all-in-one machine becomes water pump industry mainstream Trend.

In above-mentioned water pump all-in-one machine, motor 11 is docked with the pump shaft in water pump 13 using positive coupling, So as to fulfill rotor and the synchronous rotary of pump shaft.However, above-mentioned positive coupling is due to docking rotor and water pump Axis, it is more demanding to the mechanical precision of motor part and water pump part counter structure, so as to substantially increase the cost of product.And And positive coupling install in itself it is more complicated, once Rig up error will be easy to generate noise.

Utility model content

The technical problem to be solved by the present invention is to ask for above-mentioned water pump all-in-one machine is of high cost, installation is complicated Topic, provides a kind of new water pump all-in-one machine.

The technical solution that the utility model solves above-mentioned technical problem is to provide a kind of water pump all-in-one machine, including motor section With water pump portion, the water pump all-in-one machine further includes support base and main shaft, wherein：The support base is located at the motor section and water pump Between portion, and clutch shaft bearing and second bearing are installed in the support base；The main shaft passes through the clutch shaft bearing and described Second bearing installation is fixed, and the first segment of the main shaft extend into the motor section, second segment extend into the water pump portion；Institute The rotor for stating motor section is attached to the first segment of the main shaft, and the impeller in the water pump portion is installed in the second segment of the main shaft.

In water pump all-in-one machine described in the utility model, the clutch shaft bearing be axial force bearing, the second bearing For radial load bearing.

In water pump all-in-one machine described in the utility model, there is shaft mounting hole, and the first axle on the support base It holds and is separately mounted in the shaft mounting hole with the second bearing.

In water pump all-in-one machine described in the utility model, there is first step and the from top to bottom in the shaft mounting hole Two steps, and the clutch shaft bearing is installed at the first step, the second bearing is installed at the second step.

In water pump all-in-one machine described in the utility model, there is iron core hole, and the first of the bearing on the rotor Section is inserted into the iron core hole and the main shaft fixing piece by being inserted into iron core hole is mutually fixed with the rotor.

In water pump all-in-one machine described in the utility model, the first segment of the main shaft has cone from beginning to free end Degree, and the shape and size in the iron core hole are matched with the shape of the first segment of the main shaft and size matching.

In water pump all-in-one machine described in the utility model, the taper is between 1:8-1:Between 12.

There is the mechanical seal for fluid partitioning in water pump all-in-one machine described in the utility model, on the support base Structure, the mechanical seal structure are located at the support base and water pump portion joint.

In water pump all-in-one machine described in the utility model, the radial load bearing uses deep groove ball bearing or cylindrical roller Bearing.

In water pump all-in-one machine described in the utility model, the axial force bearing uses angular contact ball bearing or thrust axis It holds.

The water pump all-in-one machine of the utility model has the advantages that：Pass through the clutch shaft bearing in support base and the second axis Fixed installation main shaft is held, and the impeller of the rotor of motor and water pump is installed to same main shaft, so as in effectively save cost While, reduce the failure rate of bearing.

Description of the drawings

Fig. 1 is the schematic diagram of existing water pump all-in-one machine；

Fig. 2 is the schematic diagram of the utility model water pump all-in-one machine embodiment.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.

As shown in Fig. 2, it is the schematic diagram of the utility model water pump all-in-one machine embodiment.Water pump all-in-one machine in the present embodiment Including frequency converter, motor section 2, water pump portion 3, support base 4 and main shaft 5, wherein：Support base 4 be located at motor section 2 and water pump portion 3 it Between, and the motor casing of motor section 2 and the water pump shell in water pump portion 3 are linked together.Clutch shaft bearing is installed in above-mentioned support base 4 41 and second bearing 42；Main shaft 5 is fixed, and the first segment of main shaft 5 is extend by clutch shaft bearing 41 and the installation of second bearing 42 Motor section 2 (rotor chamber 21 i.e. in motor casing), second segment extend into water pump portion 3 (impeller cavity 31 i.e. in water pump shell).Motor The rotor 22 in portion 2 is attached to the first segment of main shaft 5, and the impeller 32 in water pump portion 3 is installed in the second segment of main shaft 5.

In above-mentioned water pump all-in-one machine, motor section 2 shares a main shaft 5 with water pump portion 3, that is, passes through first in support base 4 Main shaft 5 is fixedly mounted, and the impeller 32 of the rotor 22 of motor section 2 and water pump portion 3 is installed in bearing 41 and second bearing 42 Main shaft 5, so as to which entire water pump all-in-one machine only needs a main shaft 5.Compared to existing water pump all-in-one machine, eliminate bracket, Shaft coupling, can effectively save cost, and reduce the failure rate of bearing.

Above-mentioned clutch shaft bearing 41 is axial force bearing, by the clutch shaft bearing 41, can carry main shaft 5 in rotation process Axial force (is usually generated) by the scale error of electrical-coil and iron core, is ensured that main shaft 5 is axial and is stablized.Specifically, the first axle It holds 41 and angular contact ball bearing or thrust bearing can be used.

Above-mentioned second bearing 42 is radial load bearing, by the second bearing 42, can carry main shaft 5 in rotation process Radial load (because electromagnetic action generates), ensures that main shaft 5 is radially stablized.Specifically, which can be used deep groove ball bearing Or cylinder roller bearing.

Particularly, to realize better support effects, in support base 4, clutch shaft bearing 41 is solid close to the installation of motor section 2 Fixed, second bearing 42 is then installed close to water pump portion 3 and is fixed, so as to improve the stability of the operating of main shaft 5.

Above-mentioned clutch shaft bearing 41 and second bearing 42 can be installed to support base 4 in the following manner：Have on support base 4 There is shaft mounting hole 43, and clutch shaft bearing 41 and second bearing 42 are separately mounted in above-mentioned shaft mounting hole 43.Specifically, first Bearing 41 is installed in a manner of the inner wall of outer ring and shaft mounting hole 43 interference fit in shaft mounting hole 43；Similarly, the second axis 42 are held also to be installed in shaft mounting hole 43 in a manner of the inner wall of outer ring and shaft mounting hole 43 interference fit.

Specifically, having first step and second step in shaft mounting hole 43 from top to bottom, (shaft mounting hole 43 is at each The diameter of part above rank is more than the diameter of the part below step), and clutch shaft bearing 41 is installed at first step, the Two bearings 42 are then installed at second step.Pass through above-mentioned first step and second step structure, it is ensured that 41 He of clutch shaft bearing Second bearing 42, which is stablized, fixes.

The rotor 22 of motor section can be fixed on the first segment of main shaft 5 in the following manner：Have on rotor 22 axial Iron core hole 221, and the first segment of bearing 5 is inserted into above-mentioned iron core hole 221, and the main shaft by being inserted into iron core hole 221 Fixing piece 23 is fixed with 22 phase of rotor.Specifically, main shaft fixing piece 23 includes briquetting and screw, and briquetting is set to the upper of main shaft 5 End face, and pass through screw and main shaft 5 and fix that (diameter that iron core hole 221 is located at the part above briquetting is more than and is located at briquetting lower section Part diameter).

Particularly, for ease of rotor 22 to be installed to the first segment of main shaft 5, the first segment of main shaft 5 is from beginning (i.e. main shaft 5 Have just enter at motor section 2) it is tapered to free ending tool, and the shape and size of 221 corresponding part of iron core hole and the first of main shaft 5 The shape matching of section and size matching.Above-mentioned taper is between 1:8-1:Between 12, preferably 1:10.Above-mentioned taper connection structure, Greatly reduce the installation difficulty of rotor 22, and effective concentricity that ensure that motor section 2 and water pump portion 3.

Liquid to avoid water pump portion 3 enters motor, has the mechanical seal knot for fluid partitioning on support base 4 Structure 44, the mechanical seal structure 44 are located at support base 4 and 3 joint of water pump portion.

The preferable specific embodiment of the above, only the utility model, but the scope of protection of the utility model is not This is confined to, in the technical scope that any one skilled in the art discloses in the utility model, can be readily occurred in Change or replacement, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should It is subject to the protection scope in claims.

Claims (10)

1. a kind of water pump all-in-one machine, including motor section and water pump portion, which is characterized in that the water pump all-in-one machine further includes support base And main shaft, wherein：The support base is installed with clutch shaft bearing between the motor section and water pump portion in the support base And second bearing；The main shaft is fixed, and the first segment of the main shaft by the clutch shaft bearing and second bearing installation It extend into the motor section, second segment extend into the water pump portion；The rotor of the motor section is attached to the first of the main shaft Section, the impeller in the water pump portion are installed in the second segment of the main shaft.

2. water pump all-in-one machine according to claim 1, it is characterised in that：The clutch shaft bearing is axial force bearing, described Second bearing is radial load bearing.

3. water pump all-in-one machine according to claim 2, it is characterised in that：There is shaft mounting hole, and institute on the support base It states clutch shaft bearing and the second bearing is separately mounted in the shaft mounting hole.

4. water pump all-in-one machine according to claim 3, it is characterised in that：Have first in the shaft mounting hole from top to bottom Step and second step, and the clutch shaft bearing is installed at the first step, the second bearing is installed in described second At step.

5. the water pump all-in-one machine according to any one of claim 1-4, it is characterised in that：There is iron core on the rotor Hole, and the first segment of the bearing is inserted into the iron core hole, and by be inserted into the main shaft fixing piece in iron core hole with it is described Rotor is mutually fixed.

6. water pump all-in-one machine according to claim 5, it is characterised in that：The first segment of the main shaft is from beginning to free end Shape and size with taper, and the iron core hole are matched with the shape of the first segment of the main shaft and size matching.

7. water pump all-in-one machine according to claim 6, it is characterised in that：The taper is between 1:8-1:Between 12.

8. the water pump all-in-one machine according to any one of claim 1-4, it is characterised in that：Have on the support base and be used for The mechanical seal structure of fluid partitioning, the mechanical seal structure are located at the support base and water pump portion joint.

9. water pump all-in-one machine according to claim 2, it is characterised in that：The radial load bearing using deep groove ball bearing or Cylinder roller bearing.

10. water pump all-in-one machine according to claim 2, it is characterised in that：The axial force bearing uses angular contact ball axis It holds or thrust bearing.