An integrated shaft type washing machine

Abstract

The technical scheme belongs to the technical field of cleaning machine accessories, and particularly relates to an integrated shaft type cleaning machine, which comprises a motor device and a cleaning pump device. The motor device comprises a motor shell assembly and a motor driving part arranged in the motor shell assembly. The motor driving part is provided with a motor shaft which extends out of the motor shell assembly. The cleaning pump device comprises a pump shell, a plunger pump assembly and a crankshaft arranged in the pump shell. The crankshaft is used for driving the plunger pump assembly to work. The motor shaft is integrally formed on the crankshaft.

Description

Technical Field

[0001] This technical solution relates to the field of cleaning machine accessories technology, specifically referring to an integrated shaft cleaning machine. Background Technology

[0002] A cleaning machine is a mechanical device used to clean the surface of objects. It uses physical forces (such as high-pressure water flow, steam, ultrasonic vibration, brushing, sandblasting) or chemical actions (cleaning agents), or a combination of both, to remove dirt, grease, oil stains, coatings, rust, or other contaminants. It mainly consists of a motor unit and a cleaning pump unit. The motor unit is the input power source, and the cleaning pump unit is the output power component.

[0003] Chinese patent CN202883283U discloses a crankshaft-type high-pressure cleaning pump. The motor shaft and crankshaft of this cleaning pump are connected by a coupling. Therefore, bearings need to be added at both ends of the motor shaft and crankshaft. This results in a large number of bearings to be installed in the cleaning pump, which makes the installation process more complicated. It also increases the size of the cleaning pump and makes the connection of the internal parts of the cleaning pump more complex. Summary of the Invention

[0004] The purpose of this technical solution is to provide an integrated shaft cleaning machine, which solves the problem of the complex structure of the original cleaning machine where the motor shaft and crankshaft are connected by a coupling by integrally forming a crankshaft at the front end of the motor shaft for connecting the plunger pump assembly.

[0005] The purpose of this technical solution is achieved as follows: An integrated shaft cleaning machine includes: a motor assembly comprising a motor housing assembly and a motor drive component disposed inside the motor housing assembly, the motor drive component having a motor shaft extending out of the motor housing assembly; and a cleaning pump assembly comprising a pump housing and a plunger pump assembly and a crankshaft disposed inside the pump housing, the crankshaft being used to drive the plunger pump assembly to work; wherein the motor shaft is integrally formed on the crankshaft.

[0006] Preferably, pump bearing mounting grooves are provided at both the front and rear ends of the pump housing; pump bearings are fitted at both the front and rear ends of the crankshaft, and the pump bearings are located in the corresponding pump bearing mounting grooves.

[0007] Preferably, the motor housing assembly includes a motor housing, a motor tail cover, and a motor end cover. The motor end cover is screwed onto the mounting port of the pump housing, and the motor tail cover is screwed onto the motor end cover.

[0008] Preferably, the motor end cover has an oil seal mounting groove, the motor shaft is fitted with an oil seal, and the oil seal is installed in the oil seal mounting groove.

[0009] Preferably, the motor device further includes a motor housing and a motor fan, wherein the motor housing, together with the motor tail cover, forms an installation space; the motor fan is sleeved outside the motor shaft and placed within the installation space.

[0010] The key and beneficial technical effects of this technical solution compared to existing technologies are: 1. The motor shaft of this technical solution is designed with the rear end connected to the motor drive component and the front end integrally formed with a crankshaft for connecting the plunger pump assembly. This setting simplifies the shaft connection structure in the original cleaning machine, eliminates the coupling, and reduces the number of bearings required, making the assembly of the cleaning machine simple and quick. At the same time, it also saves internal space of the cleaning machine and reduces the size of the cleaning machine. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the cleaning machine.

[0012] Figure 2 This is an exploded view of the cleaning machine.

[0013] Figure 3 This is an exploded view of the motor housing assembly and the pump housing.

[0014] Figure 4 This is a cross-sectional view of the cleaning machine.

[0015] Reference numerals: 1. Motor assembly; 2. Cleaning pump assembly; 3. Motor housing assembly; 4. Motor drive component; 5. Motor shaft; 6. Pump housing; 7. Crankshaft; 8. Pump bearing mounting groove; 9. Pump bearing; 10. Motor housing; 11. Motor tail cover; 12. Motor end cover; 13. Oil seal mounting groove; 14. Oil seal; 15. Motor cover; 16. Motor fan. Detailed Implementation

[0016] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings.

[0017] like Figure 1 and Figure 2 As shown, the cleaning machine includes a motor unit 1 and a cleaning pump unit 2. The motor unit 1 is used to provide output power and transmit the power to the cleaning pump unit 2. The motor unit 1 has a motor shaft 5 for outputting power, and the cleaning pump unit 2 has a crankshaft 7 for receiving power. This embodiment mainly improves the connection method of the motor shaft 5 and the crankshaft 7.

[0018] like Figure 3 and Figure 4As shown, the motor device 1 includes a motor housing assembly 3 and a motor drive component 4. The motor drive component 4 is disposed within the space enclosed by the motor housing assembly 3. When the motor drive component 4 is installed inside the motor housing assembly 3, the motor shaft 5 extends out of the motor housing. The motor housing assembly 3 includes a motor housing 10, a motor tail cover 11, and a motor end cover 12. The motor end cover 12 is installed on the pump housing 6 of the cleaning pump device 2 by screws. Then, the motor tail cover 11 fixes the motor housing 10 to the motor end cover 12 by screws.

[0019] Specifically, the inner ring of the motor end cover 12 and the surface of the pump housing 6 have matching screw holes. The screw is driven into the pump housing 6 from the inside of the motor end cover 12. Here, the inside refers to the side facing the motor drive component 4. The outer ring of the motor end cover 12, the periphery of the motor housing 10, and the outer ring of the motor tail cover 11 all have matching screw holes. The screw is driven into the motor housing 10 from the outside of the motor tail cover 11, then through the motor housing 10 and into the screw hole of the motor end cover 12. Here, the outside refers to the side facing away from the motor drive component 4.

[0020] The cleaning pump device 2 includes a pump housing 6, a plunger pump assembly (not shown in the figure), and a crankshaft 7. The connection structure and working principle between the plunger pump assembly and the crankshaft 7 can be found in Chinese Patent CN202883283U. In this embodiment, the crankshaft 7 is integrally formed on the front end of the motor shaft 5. When the crankshaft 7 extends into the pump housing 6, it connects with the plunger pump assembly. At the same time, the motor shaft 5 extends out of the pump housing 6. Then, the rotor assembly is installed on the motor shaft 5. Subsequently, the motor housing 10 with the stator assembly is fitted onto the rotor assembly, thus completing the assembly of the cleaning machine. In this way, the motor shaft 5 can drive the plunger pump assembly to work through the crankshaft 7. This structure, in which the motor shaft is integrally formed on the crankshaft, simplifies the original shaft connection structure in the cleaning machine, eliminates the coupling, and reduces the number of bearings required, making the assembly of the cleaning machine simple and quick. It also saves internal space in the cleaning machine and reduces its size.

[0021] The motor drive component 4 of the cleaning machine in this embodiment mainly includes a stator assembly and a rotor assembly. The motor shaft 5 mentioned above refers to the motor shaft 5 inside the rotor assembly. In this embodiment, the motor device 1 can be a permanent magnet synchronous motor. Since the permanent magnet synchronous motor has a higher energy density than the traditional asynchronous motor, the size of the permanent magnet synchronous motor can be made very small when the motor power is the same. Therefore, it is necessary to improve the connection method between the motor shaft 5 and the crankshaft 7. In this embodiment, the motor shaft 5 and the crankshaft 7 are integrated, so that the permanent magnet synchronous motor can directly drive the plunger pump assembly through a main shaft, simplifying the original coupling and other structures and the number of bearings required by the cleaning machine. This improved structure is more suitable for the permanent magnet synchronous motor.

[0022] like Figure 4As shown, the pump housing 6 has two pump bearing mounting grooves 8 inside, located at the front and rear ends inside the pump housing 6 respectively. The front end of the crankshaft 7 is movably engaged in the pump bearing mounting groove 8 through the pump bearing 9. The motor shaft 5 is fitted with an oil seal 14, and the motor end cover 12 has a matching oil seal mounting groove 13.

[0023] Furthermore, the motor device 1 also includes a motor housing 15 and a motor fan 16. The motor housing 15, together with the motor tail cover 11, forms an installation space. The motor fan 16 is fitted onto the rear end of the motor shaft 5 and is placed within the installation space.

[0024] The overall installation steps of the cleaning machine are as follows: First, install one end of the crankshaft 7 of the motor shaft 5 and the pump bearing 9 into the pump housing 6. Then, install the motor end cover 12 onto the pump housing 6 with four screws. At the same time, install the oil seal 14. Then, press the rotor onto the motor shaft 5 and install the stator and motor housing 10 simultaneously. Sleeve the stator over the rotor and install the motor housing 10 with the motor end cover 12. Then, assemble the motor tail cover 11 onto the motor housing 10. The motor tail cover 11 is installed onto the motor housing 10 with four screws. After these four screws pass through the motor tail cover 11 and the motor housing 10, their front ends engage with the screw holes on the motor end cover 12. Finally, assemble the motor fan 16 and the motor cover 15 in sequence.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this technical solution. Various changes and modifications can be made to this technical solution without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed technical solution. The scope of protection of this technical solution is defined by the appended claims and their equivalents.

Claims

1. An integrated shaft cleaning machine, characterized in that, include: A motor assembly (1) comprising a motor housing assembly (3) and a motor drive unit (4) disposed inside the motor housing assembly (3), the motor drive unit (4) having a motor shaft (5) extending out of the motor housing assembly (3); and The cleaning pump device (2) includes a pump housing (6) and a plunger pump assembly and a crankshaft (7) disposed inside the pump housing (6), the crankshaft (7) being used to drive the plunger pump assembly to work. The motor shaft (5) is integrally formed on the crankshaft (7).

2. The integrated shaft cleaning machine according to claim 1, characterized in that: Pump bearing mounting grooves (8) are provided at both the front and rear ends of the pump casing (6); Pump bearings (9) are fitted at both ends of the crankshaft (7), and the pump bearings (9) are located in the corresponding pump bearing mounting grooves (8).

3. The integrated shaft cleaning machine according to claim 2, characterized in that: The motor housing assembly (3) includes a motor housing (10), a motor tail cover (11) and a motor end cover (12). The motor end cover (12) is mounted on the mounting port of the pump housing (6) by screws. The motor tail cover (11) fixes the motor housing (10) to the motor end cover (12) by screws.

4. The integrated shaft cleaning machine according to claim 3, characterized in that: An oil seal mounting groove (13) is provided inside the motor end cover (12), and an oil seal (14) is provided on the outer sleeve of the motor shaft (5). The oil seal (14) is installed in the oil seal mounting groove (13).

5. The integrated shaft cleaning machine according to claim 4, characterized in that: The motor device (1) also includes a motor housing (15) and a motor fan (16), wherein the motor housing (15) and the motor tail cover (11) form an installation space; The motor fan (16) is sleeved outside the motor shaft (5) and placed within the installation space.

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