CN218510014U - End cover with bearing of cycloid motor - Google Patents

Abstract

The utility model aims at providing an end cover of taking bearing of cycloid motor, through the end cover is for taking mesoporous flange shape part, wherein spot facing has bearing shelves and sealed shelves, install a mouthful roller bearing in the bearing shelves, sealed shelves processing has sealed recess, install rotary seal in the sealed recess, motor output shaft passes the mesopore of mesopore and roller bearing, the medial surface processing of end cover is the plane, the plane processing has annular seal slot, install the sealing washer in the annular seal slot, the terminal surface center is close to mesopore department processing and has the bearing to dodge the recess, the outer terminal surface of end cover sets up a step, the step sets up the round fixed orifices, fixing bolt passes the fixed orifices, fix the end cover on the installation casing of motor, through setting up the bearing in the end cover, provide stronger holding power to the output main shaft, can not paste the end cover inner wall when realizing the main shaft outer end and produce the friction damage and then destroy the sealing washer when bearing too big yawing force.

Description

End cover with bearing of cycloid motor

Technical Field

The utility model relates to a cycloid motor seals the field, in particular to cycloid motor's end cover of taking bearing.

Background

The cycloid hydraulic motor has the characteristics of simple structure, wide rotating speed range and large torque, so the cycloid hydraulic motor can be widely applied to engineering machinery such as agriculture (various combine harvesters, seeders, mowers, ground drilling machines and the like), fishery (net haulers and the like), light industry (winders, textile machines, printing machines and the like), construction industry (road rollers, cement mixers, sweeping vehicles and the like) and the like.

CN212337531U discloses a cycloid hydraulic motor, which includes a rotor-stator pair, a valve body, a flow distribution structure and a flow distribution valve; the flow distribution structure and the rotor-stator pair are enclosed into a plurality of rotor-stator cavities, the valve body is provided with an oil inlet groove and an oil outlet groove, and the rotor-stator pair is provided with a first annular cavity communicated with the oil inlet groove through the flow distribution structure and a second annular cavity communicated with the oil outlet groove; the flow distribution structure is provided with a plurality of flow distribution channels, the flow distribution channels are communicated with the rotor stator cavity, the flow distribution channels are communicated with the first annular cavity or the second annular cavity, the flow distribution channels are also communicated with the flow distribution valve, and the flow distribution valve controls the on-off of at least part of the flow distribution channels so as to adjust the rotating speed of the cycloid hydraulic motor. The cycloid hydraulic motor can realize multi-speed adjustment through the matching of the flow distribution valve and the flow distribution channel so as to meet the use requirements of different working conditions, increase the use scenes and have wide application range.

However, the problem still exists that the built-in bearing is used as the radial support of the output main shaft, and the shaft end is in a cantilever state after extending out of the end cover, so that the output main shaft can lean against the inner wall of a hole in the sealing end cover under the condition that the shaft end bearing in work bears larger lateral force, and the damage is caused by friction.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bearing-carrying end cover of cycloid motor through set up the bearing in the end cover, provides stronger holding power to the output main shaft, can not paste end cover mesopore inner wall when making the main shaft outer end bear too big yawing force and produce the friction damage and then destroy the sealing washer, convenient popularization.

In order to achieve the above object, the utility model adopts the following technical scheme:

the end cover with the bearing of the cycloid motor comprises an installation shell and is characterized in that an inner side end face is arranged on the installation shell, an end cover is arranged on the inner side end face, a middle hole is formed in the end cover, a bearing gear is machined in the inner end face of the end cover, a roller bearing is fixedly arranged in the bearing gear, an output shaft is inserted in the inner wall of the roller bearing and the middle hole, a sealing gear is fixedly arranged below the bearing gear and on the inner wall of the end cover, a sealing groove is machined in the bottom of the sealing gear, a rotary sealing ring is arranged in the sealing groove, a bearing avoiding groove is formed below the rotary sealing ring, a step is arranged on the outer end face of the end cover, a fixing hole is formed in a circle of the step, a fixing bolt is arranged in the fixing hole, the fixing bolt penetrates through the fixing hole and is fixedly connected with the installation shell, one side, close to the output shaft, of the fixing bolt is provided with an annular sealing groove in the end face of the end cover, and a sealing ring is arranged in the annular sealing groove.

Further, the end cap is a flange-shaped member.

Furthermore, a key groove is formed in the output shaft.

Further, the mounting shell and the end cover are in threaded connection through a fixing bolt.

As the improvement, the utility model has the advantages that:

the utility model discloses an end cover of taking bearing of cycloid motor, through the end cover is for taking mesoporous flange shape part, wherein spot facing has bearing shelves and sealed shelves, install a roller bearing in the bearing shelves, sealed shelves processing has sealed recess, install rotary seal in the sealed recess, motor output shaft passes mesopore and roller bearing, the medial surface processing of end cover is the plane, the plane processing has the annular seal slot, install the sealing washer in the annular seal slot, the terminal surface center is close to well spot facing processing has the bearing to dodge the recess, the outer terminal surface of end cover sets up a step, the step sets up the round fixed orifices, fixing bolt passes the fixed orifices, fix the end cover on the installation casing of motor, through setting up the bearing in the end cover, provide stronger holding power to the output main shaft, can not paste the end cover mesopore inner wall when realizing the main shaft outer end and produce the friction damage and then destroy the sealing washer when bearing too big yawing force.

Drawings

Fig. 1 is a schematic structural view of an end cap with a bearing of a gerotor motor of the present invention;

fig. 2 is a schematic structural view of a second embodiment of an end cap with a bearing of a gerotor motor according to the present invention;

reference symbol comparison table:

1. installing a shell; 2. an end cap; 3. an output shaft; 4. a bearing stop; 5. an inner side end surface; 6. a roller bearing; 7. Sealing the gear; 8. sealing the groove; 9. rotating the sealing ring; 10. the bearing avoids the groove; 11. a step; 12. a fixing hole; 13. fixing the bolt; 14. an annular sealing groove; 15. a seal ring; 16. a keyway.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

In order to make the content of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. In which like parts are designated by like reference numerals.

Example one

As shown in figure 1, the end cover 2 is a flange-shaped component with a central hole, a sealing rail 7 is processed in the hole, a bearing rail 4 is processed at the inner end face of the end cover 2, a roller bearing 6 is installed in the bearing rail 4, a sealing groove 8 is processed on the sealing rail 7, a rotary sealing ring 9 is installed in the sealing groove 8, a motor output shaft 3 penetrates through the central hole and the central hole of the roller bearing 6, the inner end face 5 of the end cover 2 is processed into a plane, an annular sealing groove 14 is processed on the plane, a sealing ring 15 is installed in the annular sealing groove 14, a bearing avoiding groove 10 is processed near the central hole of the end face, a step 11 is arranged on the outer end face of the end cover 2, a circle of fixing holes 12 are arranged on the step 11, a fixing bolt 13 penetrates through the fixing holes 12 to fix the end cover 2 on a mounting shell 1 of a motor, and a bearing is arranged in the end cover to provide stronger supporting force for an output main shaft, so that the main shaft cannot be attached to the inner wall of the central hole of the end cover to generate friction damage and further damage the sealing ring when the main shaft bears overlarge lateral force.

Example two

As shown in fig. 2, according to the first embodiment, the inner end face 5 of the end cap 2 is processed into a plane, the annular sealing groove 14 is processed on the end plane of the mounting housing 1, and the sealing ring 15 is mounted in the annular sealing groove 14, so that the same sealing function can be achieved.

The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. The end cover with the bearing of the cycloid motor comprises an installation shell (1) and is characterized in that an inner side end face (5) is arranged on the installation shell (1), an end cover (2) is arranged on the inner side end face (5), a middle hole is formed in the end cover (2), a bearing stop (4) is machined at the inner end face of the end cover (2), a roller bearing (6) is fixedly arranged in the bearing stop (4), an output shaft (3) is inserted in the inner wall and the middle hole of the roller bearing (6), a sealing stop (7) is fixedly arranged below the bearing stop (4) and on the inner wall of the end cover (2), a sealing groove (8) is machined at the bottom of the sealing stop (7), a rotary sealing ring (9) is arranged in the sealing groove (8), a bearing avoiding groove (10) is arranged below the rotary sealing ring (9), a step (11) is arranged on the outer end face of the end cover (2), a fixing hole (12) is formed in one circle of the step (11), a fixing bolt (13) is arranged in the fixing hole (12), the fixing bolt (13) penetrates through the fixing hole (12) to be fixedly connected with the installation shell (1), and a sealing groove (14) is arranged at one side, which is close to the lower end cover (3), and a sealing ring (15) is arranged in the annular sealing groove (14).

2. End cap with bearing for a gerotor motor according to claim 1, characterised in that the end cap (2) is a flange-shaped part.

3. End cap with bearing for gerotor motor according to claim 1, characterised in that the output shaft (3) is provided with a key slot (16).

4. End cap with bearing for gerotor motor according to claim 1, characterized in that the mounting housing (1) and the end cap (2) are screwed by means of fixing bolts (13).

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