CN202195011U

CN202195011U - Planetary speed reducer for floor polishing machine

Info

Publication number: CN202195011U
Application number: CN201120329938XU
Authority: CN
Inventors: 游先慧
Original assignee: CHONGQING MAOTIAN MACHINERY Co Ltd
Current assignee: CHONGQING MAOTIAN MACHINERY Co Ltd
Priority date: 2011-09-05
Filing date: 2011-09-05
Publication date: 2012-04-18
Anticipated expiration: 2021-09-05

Abstract

The utility model discloses a planetary speed reducer for a floor polishing machine, which comprise a lower casing, an upper casing, a solar gear ring, a planetary frame, a planetary wheel, a central gear shaft, a first bearing, a second bearing, a third bearing and a fourth bearing. An annular sealing cover is fixedly arranged between the second bearing and the planetary frame, is covered outside one end of the planetary frame and extends towards the inside of a box body. A first framework oil seal is arranged between the opposite cylindrical faces of the upper casing and the outer circumference, and the first framework oil seal and the annular sealing cover enable an inner cavity of a box body of the second bearing to form sealing separation. The planetary frame is further provided with a second framework oil seal which is positioned between the opposite cylindrical faces arranged at the corresponding positions of the planetary frame and the central gear shaft. The second framework oil seal leads the fourth bearing to form sealing separation with the inner cavity of the box body. The planetary speed reducer has the advantages of preventing lubrication oil from leaking from the inner cavity of the box body, improving cleaning or waxing quality, avoiding resource waste caused by repeated work, and being simple in structure and low in manufacture cost.

Description

The floor grinding machine planetary reducer

Technical field

The utility model relates to a kind of floor grinding machine that is used for ground cleaning, waxing, particularly a kind of planetary reducer of floor grinding machine.

Background technique

The planetary reducer that the common utilization structure of retarder is compact, reduction speed ratio is big that is used for the floor grinding machine of ground cleaning, waxing.The floor grinding machine planetary reducer of existing certain series product is shown in accompanying drawing 1; Comprise the casing that lower shell body 1 and upper shell 2 constitute; Lower shell body 1 outer end constitutes the output terminal of retarder, is provided with solar energy gear ring 3, planet carrier 4, planet wheel 5, sun gear shaft 6 in the casing, and planet carrier 4 is distinguished rotational support on lower shell body 1 and upper shell 2 through the clutch shaft bearing 7 and second bearing 8; Clutch shaft bearing 7 blocks the connectivity mounting hole that is positioned at upper shell 2 of second bearing 8 by lower shell body 1 sealing; Planet wheel 5 is movably connected on the planet carrier 4, and planet carrier 4 is fixedly connected on the housing of power engine, planet wheel 5 and 3 engagements of solar energy gear ring; Sun gear shaft 6 is distinguished rotational support on planet carrier 4 axis through the 3rd bearing 9 and the 4th bearing 10; Sun gear shaft 6 is connected with the rotating speeds such as output shaft of power engine; Tooth portion on the sun gear shaft 6 and planet wheel 5 engagements; The 4th bearing 10 is positioned at the penetrability mounting hole of planet carrier 4 outer ends, and second bearing 8 and the 4th bearing 10 adopt the sealing bearing, so that the internal cavities of casing forms closed cavity.Because the sealability of existing sealing bearing has certain narrow limitation, therefore, this floor grinding machine in use; Particularly after continuous operation a period of time; Spin manifold temperature with retarder raises, and the lubricating grease viscosity in the casing reduces, and the pressure in the casing increases; Lubricating grease will ooze out cleaning or the waxing instrument of polluting from second bearing 8 and the 4th bearing 10 outer ends; Influence cleaning or waxing quality are perhaps polluted ground and need be carried out part cleaning again or wax, and cause waste of manpower or materials and equipment resources.For this reason, need further to improve.

Summary of the invention

The purpose of the utility model is exactly the deficiency to existing technology, provides a kind of lubricating grease non-leakage floor grinding machine planetary reducer, its simple in structure, low cost of manufacture.

For realizing above-mentioned purpose, the utility model adopts following technological scheme.

A kind of floor grinding machine planetary reducer; Comprise lower shell body, upper shell, solar energy gear ring, planet carrier, planet wheel, sun gear shaft, clutch shaft bearing, second bearing, the 3rd bearing, the 4th bearing; Second bearing and the 4th bearing make through planet carrier and sun gear shaft respectively and constitute box house formation closed inner chamber between lower shell body and the upper shell; Also be fixed with the ring-type capping between said second bearing and the planet carrier; The ring-type cap cover is outside at planet carrier one end; The ring-type capping has the barrel that extends to box house, the outer peripheral surface of ring-type capping barrel and upper shell be provided with first outside framework oil seal in opposite directions between the cylndrical surface, first outside framework oil seal and ring-type capping make second bearing housing inner chamber formation seal; Also be provided with second outside framework oil seal on the said planet carrier, second outside framework oil seal is located in opposite directions between the cylndrical surface of planet carrier and sun gear shaft corresponding position, and second outside framework oil seal makes the inner chamber of the 4th bearing and casing form seal.

Adopt the utility model of such scheme; Because second bearing and the 4th bearing have formed seal through outside framework oil seal and reduction-gear housing intracoelomic cavity, utilize the excellent sealability of outside framework oil seal, stopped lubricating grease and oozed out from cabinets cavity; Can not cause the pollution on instrument or ground; Thereby improved cleaning or waxing quality, avoided the wasting of resources that causes because of the duplication of labour and simple in structure, low cost of manufacture.

The utility model beneficial effect compared with prior art is, stopped lubricating grease and oozed out from cabinets cavity, improved cleaning or waxing quality, avoided the wasting of resources that causes because of the duplication of labour and simple in structure, low cost of manufacture.

Description of drawings

Fig. 1 is the structural representation of the floor grinding machine planetary reducer of existing technology.

Fig. 2 is the structural representation of the utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is further described, but therefore the utility model is not limited among the described scope of embodiments.

Referring to Fig. 2; A kind of floor grinding machine planetary reducer; Comprise lower shell body 1, upper shell 2, solar energy gear ring 3, planet carrier 4, planet wheel 5, sun gear shaft 6, clutch shaft bearing 7, second bearing 8, the 3rd bearing 9, the 4th bearing 10; Second bearing 8 and the 4th bearing 10 make through planet carrier 4 and sun gear shaft 6 respectively and constitute box house formation closed inner chamber between lower shell body 1 and the upper shell 2; Also be fixed with ring-type capping 11 between said second bearing 8 and the planet carrier 4, it is outside that ring-type capping 11 covers on planet carrier 4 one ends, and ring-type capping 11 has the barrel 11a that extends to box house; Be provided with between the cylndrical surface in opposite directions first outside framework oil seal, 12, the first outside framework oil seals 12 and the ring-type capping 11 of the outer peripheral surface of ring-type capping 11 barrel 11a and upper shell 2 make second bearing, 8 cabinets cavities form seal; Also be provided with second outside framework oil seal, 13, the second outside framework oil seals 12 on the said planet carrier 4 and be located in opposite directions between the cylndrical surface of planet carrier 4 and sun gear shaft 6 corresponding positions, second outside framework oil seal 12 makes the 4th bearing 10 and the inner chamber of casing form seal.

Though more than combined accompanying drawing to describe the mode of execution of the utility model; But those of ordinary skill in the art also can recognize in the scope to accompanying claims and make various variations or modification, and it is within the scope of the utility model and intention that these modifications and variation are interpreted as.

Claims

1. floor grinding machine planetary reducer; Comprise lower shell body (1), upper shell (2), solar energy gear ring (3), planet carrier (4), planet wheel (5), sun gear shaft (6), clutch shaft bearing (7), second bearing (8), the 3rd bearing (9), the 4th bearing (10); Second bearing (8) and the 4th bearing (10) make through planet carrier (4) and sun gear shaft (6) respectively and constitute box house formation closed inner chamber between lower shell body (1) and the upper shell (2); It is characterized in that: also be fixed with ring-type capping (11) between said second bearing (8) and the planet carrier (4); It is outside that ring-type capping (11) covers on planet carrier (4) one ends; Ring-type capping (11) has the barrel (11a) that extends to box house; The outer peripheral surface of ring-type capping (11) barrel (11a) and upper shell (2) be provided with first outside framework oil seal (12) in opposite directions between the cylndrical surface, first outside framework oil seal (12) and ring-type capping (11) make second bearing (8) cabinets cavity form seal; Also be provided with second outside framework oil seal (13) on the said planet carrier (4); Second outside framework oil seal (12) is located in opposite directions between the cylndrical surface of planet carrier (4) and sun gear shaft (6) corresponding position, and second outside framework oil seal (12) makes the 4th bearing (10) and the inner chamber of casing form seal.