CN218498927U

CN218498927U - Motor bearing mounting structure for high pressure cleaning gun

Info

Publication number: CN218498927U
Application number: CN202222744405.9U
Authority: CN
Inventors: 吴林友
Original assignee: Changzhou Honest Electric Co ltd
Current assignee: Changzhou Honest Electric Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-02-17
Anticipated expiration: 2032-10-18

Abstract

The utility model belongs to the technical field of the motor assembly technique and specifically relates to a motor bearing mounting structure for high pressure cleaning rifle. The utility model provides a motor bearing mounting structure for high pressure cleaning rifle, includes motor housing, and the bottom plate contact of shell, the middle part of bottom plate has the through-hole that runs through, and the tail end of motor shaft passes the bottom plate, and motor housing's lower extreme has lower bearing fixing base, installs the lower bearing in the lower bearing fixing base, and the lower bearing is installed on the motor shaft. When the motor bearing mounting structure for the high-pressure cleaning gun is used, the upper end and the lower end of the bearing are limited by the pressing mechanisms at the upper part and the lower part, the outer ring of the bearing is matched with the corresponding groove in the motor shell, the position of the bearing is fixed, the inner ring and the outer ring of the rear assembly process bearing are prevented from moving relatively, and the service life of the bearing is effectively prolonged.

Description

Motor bearing mounting structure for high pressure cleaning gun

Technical Field

The utility model belongs to the technical field of the motor assembly technique and specifically relates to a motor bearing mounting structure for high pressure cleaning rifle.

Background

The motor used in the existing market in the above occasions requires that the rear bearing is tightly matched with the shell without play. In the subsequent assembly process, the inner ring and the outer ring of the bearing are stressed at the same time, so that the bearing is scrapped; or the bearing inner ring is loosely matched with the rotating shaft, so that the bearing inner ring and the rotating shaft are abraded, and the service life of a motor bearing is seriously influenced.

In view of the above-mentioned drawbacks, the present designer has made active research and innovation to create a motor bearing mounting structure for a high pressure cleaning gun, which has industrial application value.

Disclosure of Invention

In order to solve the technical problem, the utility model aims at providing a motor bearing mounting structure for high pressure cleaning rifle.

The utility model discloses a motor bearing mounting structure for high pressure cleaning rifle, including motor housing, the bottom and the bottom plate contact of shell, there is the through-hole that runs through at the middle part of bottom plate, and the tail end of motor shaft passes the bottom plate, and motor housing's lower extreme has lower bearing fixing base, installs lower bearing in the lower bearing fixing base, and lower bearing is installed on the motor shaft.

The motor bearing mounting structure for the high-pressure cleaning gun provides a placing position for the lower bearing mounted at the bottom of the motor shell through the bottom plate, and the downward shifting position of the lower bearing is limited by the bottom plate.

Furthermore, vertical rods vertically arranged upwards are arranged on two sides of the bottom plate, the upper ends of the vertical rods are threaded sections, the vertical rods penetrate through the pressing plate, and nuts are screwed into the threaded sections on the upper side of the pressing plate.

In order to ensure the stability of the motor operation, the upper part of the motor shell is provided with a pressing plate, and the pressing plate is pressed downwards through a nut and a matched threaded section, so that the lower bearing at the bottom cannot move up and down.

Furthermore, the upper part of the motor shell is provided with a motor upper cover which is contacted with the lower end surface of the pressure plate.

The upper cover of the motor is contacted with the pressing plate, a pressing adapter is provided, and the pressing plate is matched with the bottom plate to clamp the motor.

Furthermore, the middle of the upper cover of the motor is of an inwards concave assembly groove-shaped structure, an upper bearing is installed at the bottom of the assembly groove, the middle of the pressing plate is provided with a pressing section extending towards the inside of the assembly groove, and the pressing section is in contact with the upper end face of the upper bearing.

The upper bearing on the upper part is compressed through the compression section on the lower side of the pressure plate, so that the bearing of the motor is compressed through the upper end and the lower end, and the situation that the motor fails due to play of the bearing is avoided.

Furthermore, a whole circle of gap is formed between the bearing fixing seat and the motor shaft, an upward convex bearing top ring is arranged in the middle of the bottom plate, and the lower end face of the lower bearing of the bearing top ring is in contact with the lower end face of the lower bearing of the bearing top ring.

A raised bearing top ring is designed at the lower end of the lower bearing, the bearing top ring is propped against the lower edge of the lower bearing, the lower part of the bearing is limited, and the limiting effect of the bearing is improved.

By the scheme, the invention at least has the following advantages: when the motor bearing mounting structure for the high-pressure cleaning gun is used, the upper end and the lower end of the bearing are limited by the pressing mechanisms at the upper part and the lower part, the outer ring of the bearing is matched with the corresponding groove in the motor shell, the position of the bearing is fixed, the inner ring and the outer ring of the rear assembly process bearing are prevented from moving relatively, and the service life of the bearing is effectively prolonged.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood and to be implemented in accordance with the content of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate a certain embodiment of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a cross-sectional view of fig. 2 of the present invention;

fig. 4 is a schematic structural view of the pressing plate of the present invention;

fig. 5 is a schematic structural diagram of the bottom plate of the present invention;

in the figure, the motor comprises a motor shell 1, a motor shell 2, a base plate 3, a motor shaft 4, a lower bearing fixing seat 5, a lower bearing 6, a vertical rod 7, a pressing plate 8, a motor upper cover 9, an assembly groove 10, an upper bearing 11, a pressing section 12 and a bearing top ring.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 and 3, the motor housing 1 is placed on the bottom plate 2, the bottom of the motor housing 1 is the lower bearing fixing seat 4, the lower bearing 5 is installed in the lower bearing fixing seat 4, the lower edge of the lower bearing 5 is in contact with the bottom plate 2 through the matching relation, the bottom plate 2 is used for providing a lower-end limiting mechanism for the lower bearing, and the occurrence of the vertical movement of the lower bearing is effectively avoided.

Referring to fig. 1-3, there is an upward extending upright rod 6 on the bottom plate 2, and a pressing plate 7 sleeved on the upright rod 6 and the upper end structure of the motor housing 1 realize the operation of pressing the pressing plate 7 downward by matching the thread section structure at the top end of the upright rod 6 through threads, and simultaneously provide an upward pulling force for the bottom plate 2, and through this structure, the bottom plate 2 is ensured to support the lower bearing 5.

Referring to fig. 1-3, the upper end of the motor housing 1 has a motor upper cover 8 contacting the pressure plate 7, in order to prevent the pressure plate 7 from damaging the motor housing 1.

Referring to fig. 3 and 4, in order to ensure the rotation of the motor shaft 3, an upper bearing 10 is also installed at the upper end of the motor shaft 3, and the upper bearing 10 is installed in an assembly groove 9 of a motor upper cover 8, thus providing an installation position for the upper bearing 10, and a pressing section 11 extending downward is provided inside the pressing plate 7, the lower end of the pressing section 11 is in contact with the upper end face of the upper bearing 10, and the nut and thread section structure of the locking screw is further structured, so that the pressing plate 7 at the upper end drives the pressing section 11 to provide an inward pressing force, thus locking the upper bearing 10 at the upper end in the up-and-down position.

Referring to fig. 3 and 4, the bottom plate 2 is provided with a bearing top ring 12 protruding upwards, and the bearing top ring 12 is pressed against the end surface of the lower bearing 5, so as to further improve the position limiting effect of the lower bearing 5.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a motor bearing mounting structure for high pressure cleaning rifle, includes motor housing (1), its characterized in that: the bottom and bottom plate (2) contact of shell (1), and there is the through-hole that runs through at the middle part of bottom plate (2), and bottom plate (2) are passed to the tail end of motor shaft (3), and the lower extreme of motor shell (1) has lower bearing fixing base (4), installs lower bearing (5) in lower bearing fixing base (4), and lower bearing (5) are installed on motor shaft (3).

2. The motor bearing mounting structure for a high pressure cleaning gun according to claim 1, characterized in that: both sides of the bottom plate (2) are provided with upright rods (6) vertically arranged upwards, the upper ends of the upright rods (6) are threaded sections, the upright rods (6) penetrate through the pressing plate (7), and nuts are screwed into the threaded sections on the upper side of the pressing plate (7).

3. The motor bearing mounting structure for a high pressure cleaning gun according to claim 1, characterized in that: the upper part of the motor shell (1) is provided with a motor upper cover (8), and the motor upper cover (8) is contacted with the lower end surface of the pressure plate (7).

4. The motor bearing mounting structure for the high pressure cleaning gun according to claim 3, characterized in that: the middle of the upper motor cover (8) is of an inwards concave assembly groove (9) structure, an upper bearing (10) is installed at the bottom of the assembly groove (9), the middle of the pressing plate (7) is provided with a pressing section (11) extending towards the inside of the assembly groove (9), and the pressing section (11) is in contact with the upper end face of the upper bearing (10).

5. The motor bearing mounting structure for a high pressure cleaning gun according to claim 1, characterized in that: a whole circle gap is arranged between the bearing fixing seat (4) and the motor shaft (3), an upward convex bearing top ring (12) is arranged in the middle of the bottom plate (2), and the lower end face of the bearing (5) is contacted with the bearing top ring (12).