CN215566415U

CN215566415U - Swash plate drive assembly

Info

Publication number: CN215566415U
Application number: CN202120926475.9U
Authority: CN
Inventors: 陈浩; 余刚
Original assignee: Suzhou Xiaoke Cleaning Technology Co ltd
Current assignee: Suzhou Xiaoke Cleaning Technology Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-01-18
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses a swash plate transmission assembly which comprises a planetary gear mechanism connected with a swash plate and a thrust ball bearing arranged between the swash plate and a shell. The planetary gear mechanism is used as a transmission mechanism (speed reducing mechanism) of the high-pressure cleaning machine to replace a large and small gear set transmission mechanism in the prior art, so that a deep groove ball bearing is not required to be installed on the swash plate, the radial acting force cannot be borne, and the service life of the swash plate is prolonged. The thrust ball bearing is matched with the swash plate and can better bear the pressure from the plunger.

Description

Swash plate drive assembly

Technical Field

The present invention relates to a cleaning machine.

Background

The motor drives the swash plate to rotate through the transmission mechanism, the swash plate drives the plurality of circumferentially distributed plungers to sequentially lift, the sequentially lifted plungers pump liquid into the liquid cavity through the water inlet pipeline and then discharge the liquid at high pressure, and the high-pressure liquid is sprayed to a cleaning object through the water outlet pipe and the spray heads on the water outlet pipe.

The swash plate is arranged on the bearing and is driven by the transmission mechanism to rotate. The above-mentioned drive mechanism that prior art adopted is big pinion set (reduction gears), and the gear wheel passes through the transmission shaft drive sloping cam plate and rotates, and at the pinion with the in-process of power transmission for the gear wheel, the bearing inevitably receives the radial effort that comes from the transmission shaft, consequently, the bearing generally is deep groove ball bearing.

The swash plate needs to bear the axial force of the plunger, the diameter of the inner ring of the deep groove ball bearing in contact with the swash plate is smaller than the outer diameter of the swash plate, and the radius of the inner ring of the deep groove ball bearing is smaller than the distance between the axial force of the plunger and the center of the deep groove ball bearing, so that the deep groove ball bearing cannot effectively bear the axial force of the plunger to the swash plate, and the axial force is mainly born by the edge of the swash plate. Therefore, the swash plate needs to be made of metal parts with good strength.

The utility model has the following contents:

the technical problems solved by the utility model are as follows: the swash plate can be a plastic piece.

In order to solve the technical problems, the utility model provides the following technical scheme: the swash plate transmission assembly comprises a transmission mechanism connected with a swash plate and a first bearing arranged between the swash plate and the shell, wherein the transmission mechanism is a planetary gear mechanism, and the first bearing is a thrust ball bearing.

The planetary gear mechanism is adopted as a transmission mechanism (speed reducing mechanism) of the high-pressure cleaning machine to replace a large and small gear set transmission mechanism in the prior art, and a transmission shaft between the transmission mechanism and the swash plate cannot generate radial force on a bearing of the swash plate. Therefore, the bearing (first bearing) of the swash plate does not need to adopt a deep groove ball bearing, a thrust ball bearing with the outer diameter not smaller than that of the swash plate can be adopted, and the thrust ball bearing can effectively bear the axial force of the plunger to the swash plate. Therefore, the swash plate can be made of a plastic material having low strength.

On the premise that the planetary gear mechanism is used as a transmission mechanism of the high-pressure cleaning machine, the thrust ball bearing is arranged at the position where the deep groove ball bearing is originally arranged, and the swash plate is made of plastic parts, so that the production cost of the high-pressure cleaning machine can be saved, and the high-pressure cleaning machine is light. In addition, the eccentric force generated by the plastic part in the rotating process is small, and the vibration reduction effect is achieved.

Description of the drawings:

FIG. 1 is a schematic view of the upper half of a high pressure cleaner;

FIG. 2 is a schematic view of the housing 50 of FIG. 1 shown hidden;

FIG. 3 is a schematic view of the swashplate 10 of FIG. 2;

fig. 4 is a schematic view of the carrier 31 in fig. 2.

The symbols in the drawings illustrate that:

10. a swash plate; 11. a bevel; 12. a large diameter portion; 13. a disc-shaped structure; 14. a spline groove; 15. a columnar structure;

20. a first bearing;

30. a planetary gear mechanism; 31. a planet carrier; 32. a spline; 33. an inner gear ring;

40. a second bearing;

50. a housing;

60. and a plunger.

The specific implementation mode is as follows:

the swash plate transmission assembly is applied to a plunger type high-pressure cleaning machine.

With reference to fig. 1 and 2, the swash plate transmission assembly includes a transmission mechanism connected to the swash plate 10, and a first bearing 20 disposed between the swash plate and a housing 50, and the transmission mechanism is a planetary gear mechanism 30. The planetary gear mechanism is used as a speed reducing mechanism, a sun gear of the planetary gear mechanism is connected with a motor shaft, an inner gear ring 33 is fixedly arranged, a planet carrier 31 is connected with the swash plate 10, in the connection, a first bearing does not need to bear radial force, in order to better bear axial force of a plunger to the swash plate, the first bearing 20 adopts a thrust ball bearing, and further, the swash plate 10 can adopt a plastic piece.

The inner side wall of the shell is provided with an annular limiting structure, the top surface of the first bearing 20 bears the axial pressure from the swash plate 10, the bottom surface of the first bearing is pressed on the annular limiting structure, the annular limiting structure plays a good role in supporting the swash plate and the first bearing, and the swash plate bears the acting force from the plunger 60.

As shown in fig. 3, the swash plate 10 includes a large diameter portion 12 provided with a slope 11, and a disc structure 13 disposed below the large diameter portion, on which a first bearing 20 is mounted, a top surface of the first bearing being abutted against the large diameter portion, and a bottom surface of the first bearing being abutted against the annular stopper structure. The planet carrier 31 is connected to the disc 13. alternatively, the disc 13 is provided with a splined recess 14 at the bottom and the planet carrier 31 of the transmission is provided with splines 32 which cooperate with the splined recess, as shown in fig. 4.

As shown in fig. 3, the swash plate 10 further includes a cylindrical structure 15 disposed above the large diameter portion 12, the cylindrical structure is mounted with a second bearing 40, the bearing is a thrust ball bearing, the bottom end of the plunger abuts against the top surface of the second bearing, and the bottom surface of the second bearing abuts against the inclined surface 11 of the large diameter portion. In practical operation, the motor drives the planetary gear mechanism 30, the planet carrier 31 drives the swash plate 10 to rotate, and the swash plate drives the plurality of circumferentially distributed plungers 60 to perform regular lifting movement, so that water pumping and water spraying of the high-pressure cleaning machine are realized.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description herein, since various changes and modifications can be made in the details of the embodiment and the application range according to the spirit of the present invention.

Claims

1. Swash plate drive assembly, including drive mechanism, the first bearing (20) of setting between swash plate and shell (50) be connected with swash plate (10), its characterized in that: the transmission mechanism is a planetary gear mechanism (30), and the first bearing is a thrust ball bearing.

2. The swash plate drive assembly as claimed in claim 1, wherein: the swash plate (10) comprises a large diameter portion (12) provided with a slope (11), a disc-shaped structure (13) disposed below the large diameter portion, on which a first bearing (20) is mounted.

3. The swash plate drive assembly as claimed in claim 2, wherein: the bottom of the disc-shaped structure (13) is provided with a spline groove (14), and a planet carrier (31) of the transmission mechanism is provided with a spline (32) matched with the spline groove.

4. The swash plate drive assembly as claimed in claim 2, wherein: the swash plate (10) comprises a cylindrical structure (15) arranged above the large-diameter part (12), a second bearing (40) is installed on the cylindrical structure, and the bottom end of the plunger abuts against the second bearing.

5. The swash plate drive assembly as claimed in claim 1, wherein: the swash plate (10) is made of plastic.