CN218151292U

CN218151292U - Driving mechanism of handheld cleaning machine

Info

Publication number: CN218151292U
Application number: CN202221474495.8U
Authority: CN
Inventors: 罗昌国; 陈宇波; 赵永胜
Original assignee: China Lutian Machinery Co ltd
Current assignee: China Lutian Machinery Co ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-12-27
Anticipated expiration: 2032-06-13

Abstract

The utility model provides an actuating mechanism of hand-held type cleaning machine belongs to high pressure cleaner technical field. The planetary gear assembly solves the problem that heat in the working process of the planetary gear assembly in the existing driving mechanism is slowly dissipated. This actuating mechanism of hand-held type cleaning machine, hand-held type cleaning machine include the pump body, and the pump body has the gear chamber, and actuating mechanism is including setting up the planetary gear subassembly in the gear chamber and the eccentric shaft that is used for driving the plunger, and planetary gear subassembly includes the ring gear and sets up on the eccentric shaft and with the planetary gear of ring gear looks meshing, and the outer peripheral face of ring gear leans on with the inside wall in gear chamber. The structure solves the problem of slow heat dissipation in the working process of the planetary gear assembly in the driving mechanism.

Description

Driving mechanism of handheld cleaning machine

Technical Field

The utility model belongs to the technical field of the cleaning machine, especially a actuating mechanism of hand-held type cleaning machine.

Background

In daily life, people often need to clean balconies, walkways, outdoor tables and chairs, barbecue grilles, automobiles, bicycles, garages, windows, swimming pools, outdoor steps and the like, the objects are generally used outdoors and can be inevitably stained with dirt, oil stains, leaves, dust and other stains, cleaning is very inconvenient by using cleaning rags manually, and water flow or even high-pressure water flow is needed for spray washing. To improve the convenience of cleaning and the efficiency of washing, hand-held washing machines have been generally used to spray these items.

At present, chinese patent discloses a transmission structure of a single-plunger cleaning machine [ grant publication No.: CN208712329U comprises a planetary gear transmission component and a cam transmission shaft, wherein one end of the planetary gear transmission component is connected with a motor, the other end of the planetary gear transmission component is connected with the cam transmission shaft, a transmission bearing is connected to an eccentric shaft of the cam transmission shaft, the transmission bearing is also connected with a plunger, the planetary gear transmission component is driven by the motor to drive the cam transmission shaft to rotate, the cam is made to eccentrically move through the eccentric shaft of the cam transmission shaft, power is transmitted to the transmission bearing through the eccentric shaft of the cam transmission shaft, and then the plunger is driven to move up and down, the planetary gear transmission component comprises a sun gear, a plurality of planet gears and a gear, and the sun gear is connected with an output shaft of the motor.

The cleaning machine is at the course of the work, and planetary gear drive subassembly is as transmission structure's main component, and planetary gear drive subassembly long-time work back can produce more heat, and the design of the transmission structure in the above-mentioned patent makes the unable effectual outside effluvium of heat that produces in time after planetary gear drive subassembly work, leads to the temperature of spare part in the course of the work higher, and spare part is damaged more easily, reduces the life of spare part.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided an actuating mechanism of hand-held type cleaning machine, the utility model aims to solve the technical problem that: how to solve the problem that the heat in the work of the planetary gear assembly in the driving mechanism is slowly dissipated.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a handheld cleaning machine's actuating mechanism, handheld cleaning machine includes the pump body, its characterized in that, the pump body has the gear chamber, actuating mechanism is including setting up the planetary gear subassembly in the gear chamber and the eccentric shaft that is used for driving the plunger, planetary gear subassembly includes the ring gear and sets up on the eccentric shaft and with ring gear engaged with planetary gear, the outer peripheral face of ring gear pastes with the inside wall in gear chamber and leans on.

This structure sets up the ring gear at the gear intracavity, and make the outer peripheral face of ring gear and the inboard wall in gear chamber paste mutually and lean on, ring gear and the abundant contact of the pump body, the heat that planetary gear assembly produced in the course of the work transmits for the pump body through the ring gear, current cleaning machine is in the course of the work, rivers enter into the pump body from the water inlet of the pump body in, the delivery port outflow from the pump body again, rivers take away the heat of the pump body behind the pump body, make the indirect cooling that dispels the heat to planetary gear assembly, the temperature of effectual reduction planetary gear assembly during operation, extension planetary gear assembly's life.

In foretell actuating mechanism of hand-held type cleaning machine, have on the inner wall in gear chamber and be annular location boss, a terminal surface and the location boss terminal surface of ring gear are supported and are leaned on, actuating mechanism still includes the motor and fixes the support at the motor tip, the one end and the pump body fixed connection of support to the support has and extends the gear intracavity and supports and lean on the portion that compresses tightly the ring gear on the boss of location by another terminal surface of ring gear. The ring gear sets up between location boss and the portion of compressing tightly to the portion of compressing tightly compresses tightly the ring gear on the boss of location, makes the ring gear installation stable, firm on the one hand, and on the other hand location boss also belongs to a part of the pump body, improves the area of contact of ring gear and the pump body, and then improves the radiating effect to planetary gear assembly.

In the above-mentioned actuating mechanism of hand-held type cleaning machine, have two at least first lugs that connect on the lateral wall of pump body one end, have two at least second on the outer peripheral face of support and connect the lug, first lug and second connect the lug one-to-one, first lug and second connect the lug to pass through fastener fixed connection. The support is stably and firmly connected with the pump body.

In the above-mentioned drive mechanism of the hand-held cleaning machine, the support is provided with at least two grooves therein, each groove is provided with a second fastening piece, and the second fastening piece penetrates through the support and is fixedly connected with the motor. This fastener II adopts the mode of secretly adorning, makes the cleaning machine have better pleasing to the eye degree when guaranteeing that support and motor are connected stably.

In the above driving mechanism of the handheld cleaning machine, a first bearing is fixed on the inner wall of the pump body, a second bearing is fixed in the bracket, the middle part of the eccentric shaft is connected with the first bearing, and one end of the eccentric shaft is connected with the second bearing. The middle part and the tail part of the eccentric shaft are both arranged on corresponding parts through bearings, so that the rotating stability of the eccentric shaft is improved.

In foretell actuating mechanism of hand-held type cleaning machine, the installation department has on the lateral wall of eccentric shaft, planetary gear passes through the gear pin joint on the installation department, the eccentric shaft has well cavity, set up the hole of stepping down of intercommunication well cavity on the lateral wall of eccentric shaft, planetary gear's part extends the cavity intracavity through the hole of stepping down, planetary gear assembly still includes the sun gear that at least part is located the cavity intracavity, sun gear and planetary gear meshing. The gear pin is fixed with the installation part in a unilateral interference fit mode, the gear pin can not fall off easily after fixing the planetary gear, and the gear pin, the planetary gear and the eccentric shaft can be pre-assembled in advance and used for assembling the motor pump.

Compared with the prior art, the utility model discloses a drive mechanism of hand-held type cleaning machine has following advantage: this structure sets up the ring gear at the gear intracavity, and make the outer peripheral face of ring gear and the inboard wall in gear chamber paste mutually and lean on, ring gear and the abundant contact of the pump body, the heat that planetary gear assembly produced in the course of the work transmits for the pump body through the ring gear, current cleaning machine is in the course of the work, rivers enter into the pump body from the water inlet of the pump body in, the delivery port outflow from the pump body again, rivers take away the heat of the pump body behind the pump body, make the indirect cooling that dispels the heat to planetary gear assembly, the temperature of effectual reduction planetary gear assembly during operation, extension planetary gear assembly's life.

Drawings

Fig. 1 is one of the schematic sectional structural diagrams of the present invention.

Fig. 2 is a second schematic cross-sectional view of the present invention.

Fig. 3 is a schematic view of a partial three-dimensional structure of the present invention.

In the figure, 1, a pump body; 100. a first lug; 2. a gear cavity; 20. positioning the boss; 3. a planetary gear assembly; 30. a ring gear; 31. a planetary gear; 32. a sun gear; 4. a plunger; 40. mounting grooves; 5. an eccentric shaft; 50. an installation part; 51. a hollow cavity; 52. a hole of abdication; 6. a motor; 7. a support; 70. a pressing part; 71. a groove; 72. a second lug; 8. a first fastener; 9. a second fastening piece; 11. a first bearing; 12. a second bearing; 13. and a gear pin.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the driving mechanism of the hand-held cleaning machine, the hand-held cleaning machine includes a pump body 1, the pump body 1 has a gear cavity 2, the driving mechanism includes a planetary gear assembly 3 disposed in the gear cavity 2 and an eccentric shaft 5 for driving a plunger 4.

As shown in fig. 1, 2 and 3, the planetary gear assembly 3 includes a ring gear 30, a planetary gear 31 and a sun gear 32, the ring gear 30 is fixed on the pump body 1 and an outer circumferential surface of the ring gear 30 abuts against an inner sidewall of the pump body 1, a mounting portion 50 is provided on an outer sidewall of the eccentric shaft 5, the planetary gear 31 is connected to the mounting portion 50 through a gear pin 13, the planetary gear 31 is engaged with the ring gear 30, the eccentric shaft 5 has a hollow cavity 51, an escape hole 52 communicating with the hollow cavity 51 is opened on the outer sidewall of the eccentric shaft 5, a portion of the planetary gear 31 extends into the hollow cavity 51 through the escape hole 52, at least a portion of the sun gear 32 is located in the hollow cavity 51 and the sun gear 32 is engaged with the planetary gear 31. In this structure, ring gear 30 and the abundant contact of the pump body 1, the heat that planetary gear assembly 3 produced in the course of the work transmits for the pump body 1 through ring gear 30, current cleaning machine is in the course of the work, rivers enter into the pump body 1 from the water inlet of the pump body 1 in, the delivery port outflow from the pump body 1 again, rivers take away the heat of the pump body 1 behind the pump body 1, make indirect heat dissipation cooling to planetary gear assembly 3, the temperature of effectual reduction planetary gear assembly 3 during operation, the life of extension planetary gear assembly 3.

As shown in fig. 1, the inner wall of the gear cavity 2 has a positioning boss 20 in an annular shape, one end surface of the gear ring 30 abuts against the end surface of the positioning boss 20, the driving mechanism further comprises a motor 6 and a bracket 7 fixed at the end of the motor 6, one end of the bracket 7 is fixedly connected with the pump body 1, and the bracket 7 has a pressing part 70 which extends into the gear cavity 2 and abuts against the other end surface of the gear ring 30 to press the gear ring 30 on the positioning boss 20. The gear ring 30 is arranged between the positioning boss 20 and the pressing portion 70, and the pressing portion 70 presses the gear ring 30 on the positioning boss 20, so that the gear ring 30 is stably and firmly installed, the positioning boss 20 also belongs to one part of the pump body 1, the contact area of the gear ring 30 and the pump body 1 is increased, and the heat dissipation effect of the planetary gear assembly 3 is further improved.

As shown in fig. 1, at least two first engaging lugs 100 are arranged on the outer side wall of one end of the pump body 1, at least two second engaging lugs 72 are arranged on the outer peripheral surface of the bracket 7, the first engaging lugs 100 correspond to the second engaging lugs 72 one to one, the first engaging lugs 100 are fixedly connected with the second engaging lugs 72 through a first fastening piece 8, and the bracket 7 is stably and firmly connected with the pump body 1. At least two grooves 71 are formed in the support 7, a second fastening piece 9 is arranged in each groove 71, the second fastening piece 9 penetrates through the support 7 and is fixedly connected with the motor 6, the second fastening piece 9 is in a concealed installation mode, and the support 7 and the motor 6 are stably connected while the cleaning machine is enabled to have good attractiveness.

As shown in fig. 1, a first bearing 11 is fixed on the inner wall of the pump body 1, a second bearing 12 is fixed in the support 7, the middle of the eccentric shaft 5 is connected with the first bearing 11, one end of the eccentric shaft 5 is connected with the second bearing 12, and the middle and the tail of the eccentric shaft 5 are both mounted on corresponding parts through bearings, so that the rotation stability of the eccentric shaft 5 is improved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A drive mechanism of a handheld cleaning machine, the handheld cleaning machine comprises a pump body (1), and is characterized in that the pump body (1) is provided with a gear cavity (2), the drive mechanism comprises a planetary gear assembly (3) arranged in the gear cavity (2) and an eccentric shaft (5) used for driving a plunger (4), the planetary gear assembly (3) comprises a gear ring (30) and a planetary gear (31) arranged on the eccentric shaft (5) and meshed with the gear ring (30), and the outer peripheral surface of the gear ring (30) is attached to the inner side wall of the gear cavity (2); have installation department (50) on the lateral wall of eccentric shaft (5), planetary gear (31) are connected on installation department (50) through gear pin (13), eccentric shaft (5) have well cavity (51), set up abdicating hole (52) that communicate well cavity (51) on the lateral wall of eccentric shaft (5), the part of planetary gear (31) extends to in well cavity (51) through abdicating hole (52), planetary gear assembly (3) still include sun gear (32) that the part is located well cavity (51) at least, sun gear (32) and planetary gear (31) meshing.

2. The drive mechanism of the handheld cleaning machine is characterized in that the inner wall of the gear cavity (2) is provided with an annular positioning boss (20), one end face of the gear ring (30) abuts against the end face of the positioning boss (20), the drive mechanism further comprises a motor (6) and a support (7) fixed at the end part of the motor (6), one end of the support (7) is fixedly connected with the pump body (1), and the support (7) is provided with a pressing part (70) which extends into the gear cavity (2) and presses the gear ring (30) on the positioning boss (20) against the other end face of the gear ring (30).

3. The driving mechanism of a handheld cleaning machine according to claim 2, characterized in that the outer side wall of one end of the pump body (1) is provided with at least two first lugs (100), the outer circumferential surface of the bracket (7) is provided with at least two second lugs (72), the first lugs (100) and the second lugs (72) are in one-to-one correspondence, and the first lugs (100) and the second lugs (72) are fixedly connected through a first fastening piece (8).

4. The drive mechanism of a hand-held washing machine as claimed in claim 2, characterized in that the support (7) has at least two recesses (71) therein, each recess (71) having a second fastening element (9) disposed therein, the second fastening element (9) passing through the support (7) and being fixedly connected to the motor (6).

5. The drive mechanism of a hand-held cleaning machine according to claim 2, characterized in that a first bearing (11) is fixed on the inner wall of the pump body (1), a second bearing (12) is fixed in the bracket (7), the eccentric shaft (5) is connected with the first bearing (11) at the middle part and with the second bearing (12) at one end.