CN212775456U - Anti-loose connecting device for main shaft and shell of planetary walking speed reducer - Google Patents

Abstract

The utility model provides a planet walking speed reducer main shaft and shell anti-loosening connecting device, belonging to the technical field of planet walking speed reducers, comprising a speed reducer shell, a speed reducer main shaft, a floating seal, a conical bearing, a half snap ring cover and a screw; the reducer shell and the reducer spindle are respectively fixed on the outer ring and the inner ring of the conical bearing, and floating seal is arranged between the end surface of the reducer shell and the reducer spindle; an annular groove is formed in the main shaft of the speed reducer and is located below the conical bearing; the two half clamping rings are arranged in the annular groove and form a clamping ring in an enclosing mode, and the clamping ring is pressed against the inner ring of the conical bearing; the half snap ring cover is fixed on the half snap ring through screws. The planet walking speed reducer main shaft and shell anti-loosening connecting device can effectively prevent the looseness of the conical bearing and the floating seal, reduce the probability of the damage and oil leakage of the speed reducer gear, improve the safety and reliability of the speed reducer, and simultaneously reduce the operation difficulty and cost of the maintenance and repair of the speed reducer.

Description

Anti-loose connecting device for main shaft and shell of planetary walking speed reducer

Technical Field

The utility model belongs to the technical field of planet walking reduction gear, a locking connecting device of planet walking reduction gear main shaft and casing is specifically disclosed.

Background

The planetary walking speed reducer has the advantages of small volume, high transmission efficiency, wide speed reduction range, high precision and the like, and is low in price and applied to wide industrial occasions. When the main shaft of the existing planetary walking speed reducer is connected with the shell, a steel nut is adopted for locking, and the nut is loosened due to the vibration and the rotation of the shaft; also, at the main shaft and nut cooperation position, a knock-in anti-loosening pin, destroy the screw thread and reach locking effect, when this structure leads to the maintenance reduction gear, the nut can not normally be dismantled, and the screw thread of nut and main shaft is detained and is damaged, can not direct used repeatedly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a planet walking reduction gear main shaft and locking connecting device of casing improve the reduction gear because of locknut is not hard up, deviate from and cause reduction gear bearing to damage, the gear beat the problem of tooth, reduce and use and cost of maintenance.

In order to achieve the aim, the utility model provides a planet walking reducer main shaft and shell anti-loosening connecting device, which comprises a reducer shell, a reducer main shaft, a floating seal, a conical bearing, a half snap ring cover and a screw; the reducer shell and the reducer spindle are respectively fixed on the outer ring and the inner ring of the conical bearing, and floating seal is arranged between the end surface of the reducer shell and the reducer spindle; an annular groove is formed in the main shaft of the speed reducer and is located below the conical bearing; the two half clamping rings are arranged in the annular groove and form a clamping ring in an enclosing mode, and the clamping ring is pressed against the inner ring of the conical bearing; the half snap ring cover is fixed on the half snap ring through screws.

Furthermore, the anti-loose connecting device for the main shaft and the shell of the planetary walking speed reducer further comprises a gasket, wherein the gasket is arranged between the semi-clamping ring and the inner ring of the conical bearing and used for adjusting the clearance between the conical bearing and the floating seal.

Further, the number of the spacers is plural.

Furthermore, floating seal installation grooves are formed in the speed reducer shell and the speed reducer main shaft.

Furthermore, a conical bearing installation groove is formed in the speed reducer shell.

The utility model provides a locking connecting device of planet walking reduction gear main shaft and casing has following beneficial effect:

1. the two half clamping rings are arranged in the annular groove and form a clamping ring in an enclosing mode, the clamping ring is pressed against the inner ring of the conical bearing to compress the conical bearing, the half clamping ring cover penetrates through the main shaft and is arranged on the half clamping ring through a screw, so that the half clamping ring and the half clamping ring cover are relatively limited and relatively fastened, and the effect of preventing looseness is achieved;

2. the original round nut anti-loosening structure is cancelled, the problems that the speed reducer is not easy to disassemble, is destructively disassembled or needs a special tool to disassemble when being maintained and disassembled are solved, and the maintenance difficulty is reduced;

3. the original round nut anti-loosening structure is eliminated, the problem that threads on the round nut and the main shaft are damaged due to the fact that the anti-loosening pin is installed after the round nut is installed on the original speed reducer is solved, and maintenance cost is reduced;

4. a gasket is arranged between the half clamping ring and the inner ring of the conical bearing, the inner ring of the conical bearing and a reducer spindle fixedly connected with the inner ring can be pushed by adjusting the thickness of the gasket, and the gap between the conical bearing and the floating seal is adjusted to a proper size, so that the reducer can operate efficiently;

5. through the cooperation structure of processing ring channel and half snap ring, gasket and half snap ring lid on the reduction gear main shaft, can effectively prevent conical bearing and floating seal's not hard up, reduce the probability of reduction gear damage and the oil leak condition, improve the fail safe nature of reduction gear, also can reduce the operation degree of difficulty and the cost of reduction gear maintenance, maintenance simultaneously.

Drawings

Fig. 1 is a sectional view of a main shaft and housing looseness-prevention connecting device of a planetary traveling reducer.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Wherein, the names corresponding to the reference numbers are:

1-reducer shell, 2-reducer spindle, 3-floating seal, 4-conical bearing, 5-half snap ring, 6-gasket, 7-half snap ring cover and 8-screw.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment provides a main shaft and shell anti-loose connecting device of a planetary walking speed reducer, which comprises a speed reducer shell 1, a speed reducer main shaft 2, a floating seal 3, a conical bearing 4, a semi-snap ring 5, a gasket 6, a semi-snap ring cover 7 and a screw 8; reducer housing 1 is fixed on reducer spindle 2 through conical bearing 4, and the hookup location of terminal surface installs floating seal 3 and seals oil processing, and process the ring channel on reducer spindle 2, half snap ring 5 is installed and is pressed in conical bearing 4's inner circle at the ring channel, and add gasket 6 in reducer spindle 2's ring channel, a mounting gap for adjusting floating seal 3 and conical bearing 4, after the clearance is suitable, install half snap ring lid 7 on half snap ring 5 and gasket 6, and connect and fix half snap ring 5 and half snap ring lid 7 with screw 8, make half snap ring 5, gasket 6 and half snap ring lid 7 reciprocal anchorage, prevent to drop, play locking effect.

In the embodiment, the installation clearance between the floating seal 3 and the conical bearing 4 can be adjusted directly by designing the thickness of the gasket 6; it is also possible to use a plurality of gaskets 6, the number of which is increased or decreased to adjust the installation clearance between the floating seal 3 and the conical bearing 4.

Further, floating seal installation grooves are formed in the speed reducer shell 1 and the speed reducer main shaft 2.

Further, a conical bearing mounting groove is provided on the reducer case 1 for mounting a housing of the conical bearing 4.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (5)

1. A planet walking speed reducer main shaft and shell anti-loose connecting device is characterized by comprising a speed reducer shell, a speed reducer main shaft, a floating seal, a conical bearing, a half snap ring cover and a screw;

the reducer shell and the reducer spindle are respectively fixed on an outer ring and an inner ring of the conical bearing, and floating seal is arranged between the end surface of the reducer shell and the reducer spindle;

an annular groove is formed in the main shaft of the speed reducer and is located below the conical bearing;

the two half clamping rings are arranged in the annular groove and form a clamping ring in an enclosing mode, and the clamping ring is pressed against the inner ring of the conical bearing;

and the half clamping ring cover is fixed on the half clamping ring through a screw.

2. The anti-loose connecting device for the main shaft and the shell of the planetary walking speed reducer according to claim 1, further comprising a gasket, wherein the gasket is arranged between the semi-clamping ring and the inner ring of the conical bearing and used for adjusting a gap between the conical bearing and the floating seal.

3. The planetary walking reducer spindle and housing anti-loose connection device according to claim 2, wherein the number of the spacers is plural.

4. The planetary traveling reducer spindle and casing looseness-prevention connecting device according to claim 3, wherein floating seal mounting grooves are provided on the reducer casing and the reducer spindle.

5. The anti-loose connecting device for the main shaft and the shell of the planetary walking reducer as claimed in claim 4, wherein the reducer shell is provided with a conical bearing mounting groove.

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