CN217130275U

CN217130275U - High power density speed reducer connection structure

Info

Publication number: CN217130275U
Application number: CN202221440607.8U
Authority: CN
Inventors: 杨孟虎; 倪文强; 朱敬伟; 薛磊; 张事成; 程豪
Original assignee: Henan Purui Precision Machinery Co ltd
Current assignee: Henan Purui Precision Machinery Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-08-05
Anticipated expiration: 2032-06-10

Abstract

A high-power-density speed reducer connecting structure relates to the technical field of speed reducers and comprises connecting flanges, a connecting shaft and a key sleeve, wherein the outer edges of two end faces of the connecting flanges can be respectively detachably and fixedly connected with a speed reducer input end flange and a motor output end flange; the other end of the connecting shaft is coaxially and rotatably inserted into the central through hole of the connecting flange and is axially and radially positioned with the connecting flange; a blind hole into which a matching key sleeve is inserted is formed in the center of the end face, close to the end face of the motor, of the connecting shaft, the inner wall of the blind hole and the outer wall of the key sleeve are circumferentially positioned through a flat key, and a limiting retainer ring for axially positioning the key sleeve is arranged on the inner wall of the outer end of the blind hole; the connecting structure can enable the same speed reducer to be matched with motors in various forms.

Description

High power density speed reducer connection structure

Technical Field

The utility model belongs to the technical field of the speed reducer technique and specifically relates to a high power density speed reducer connection structure is related to.

Background

Among the prior art, conventional trinity speed reducer adopts the scheme of speed reducer and motor direct connection, receives factors such as speed reducer box space restriction, and the motor form that the trinity speed reducer of different models can the direct connection is more single, and the limitation is great, and the motor of a form can only be adapted to the same model, is difficult to realize built-up connection between each model, has increased the degree of difficulty that power input was adjusted.

SUMMERY OF THE UTILITY MODEL

In order to overcome not enough among the background art, the utility model discloses a high power density speed reducer connection structure can make the motor of the multiple form of same kind speed reducer adapted.

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

a high-power-density speed reducer connecting structure comprises connecting flanges, a connecting shaft and a key sleeve, wherein the outer edges of two end faces of the connecting flanges can be respectively detachably and fixedly connected with a speed reducer input end flange and a motor output end flange; the other end of the connecting shaft is coaxially and rotatably inserted into the central through hole of the connecting flange and is axially and radially positioned with the connecting flange; the connecting shaft is provided with a blind hole matched with the insertion of the key sleeve in the center of the end face of the shaft end close to the motor, the inner wall of the blind hole and the outer wall of the key sleeve are circumferentially positioned through a flat key, and the inner wall of the outer end of the blind hole is provided with a limit retaining ring for axially positioning the key sleeve.

Furthermore, the outer edge of the end face, close to the speed reducer, of the connecting flange is evenly provided with a plurality of step through holes with the diameters being increased from small diameters to large diameters, and the outer edge of the end face, close to the motor, of the connecting flange is evenly provided with a plurality of thread through holes in an encircling manner.

Furthermore, a first bearing, a second bearing, a bearing retainer ring and an oil seal are sequentially arranged between the inner wall of the central through hole of the connecting flange and the outer wall of the corresponding connecting shaft along the axial direction, a limiting step corresponding to the outer ring of the first bearing is arranged at the corresponding end of the central through hole of the connecting flange, and a limiting convex shoulder is arranged on a shaft body of the connecting shaft between the first bearing and the second bearing.

Further, lubricating grease is arranged between the first bearing and the second bearing.

Furthermore, the distance between the inner end of the inner wall of the blind hole, corresponding to the flat key groove, and the limiting retainer ring is equal to the length of the flat key.

Further, the depth of the blind hole is larger than the length of the key sleeve.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

the utility model discloses a high power density speed reducer connection structure, which enables the same three-in-one speed reducer machine type to be matched with motors in various forms, easily realizes the combination and connection among the machine types, and can be matched with motors in various shaft diameter forms by changing different key sleeves; the key sleeve arranged through the connecting structure can leave a proper gap with the motor, and when the conical motor is matched, the impact of axial movement of the motor on the speed reducer can be effectively reduced.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic diagram of the right side view of the structure of FIG. 1;

fig. 3 is a schematic diagram of the connection structure of the present invention.

In the figure: 1. a connecting flange; 2. a stepped through hole; 3. lubricating grease; 4. a first bearing; 5. a connecting shaft; 6. a key sleeve; 7. a second bearing; 8. a bearing retainer ring; 9. a limit retainer ring; 10. an inner bore; 11. blind holes; 12. a flat bond; 13. oil sealing; 14. a threaded through hole; 15. a speed reducer; 16. an electric motor.

Detailed Description

In the following description, the technical solution of the present invention will be described with reference to the accompanying drawings in the embodiment of the present invention, it should be understood that, if there are the indicated positions or positional relationships such as "upper", "lower", "front", "rear", "left", "right", etc., it only corresponds to the drawings of the present invention, and for convenience of description, it is not intended to indicate or imply that the indicated device or element must have a specific position:

the high-power-density speed reducer connecting structure described with reference to fig. 1-3 includes a connecting flange 1, the outer edges of two end faces of which can be respectively detachably and fixedly connected with an input end flange of a speed reducer 15 and an output end flange of a motor 16, and the shells of the speed reducer 15 and the motor 16 can be fixedly connected through the connecting flange 1; according to the requirements, the outer edge of the end face of the connecting flange 1 close to the speed reducer 15 is uniformly and annularly provided with a plurality of step through holes 2 with the diameters being increased from small to large, the step through holes 2 correspond to threaded holes in the flange of the speed reducer 15 and are connected through screwing screws, the outer edge of the end face of the connecting flange 1 close to the motor 16 is uniformly and annularly provided with a plurality of threaded through holes 14, and the threaded through holes 14 correspond to mounting holes in the flange of the motor 16 and are connected through screwing bolts; the connecting shaft 5 is in transmission connection with an input shaft of the speed reducer 15 at one end, so that the connecting shaft 5 can drive the input shaft of the speed reducer 15 to rotate, the inner hole 10 can be inserted into the key sleeve 6 matched with an output shaft of the corresponding motor 16, and the key sleeve 6 is generally designed as a spline sleeve, namely after the output shaft of the motor 16 is inserted into the key sleeve 6, the circumferential and radial positioning can be realized;

the other end of the connecting shaft 5 is coaxially and rotatably inserted into the central through hole of the connecting flange 1 and is axially and radially positioned with the connecting flange 1; according to the requirements, a first bearing 4, a second bearing 7, a bearing retainer ring 8 and an oil seal 13 are sequentially arranged between the inner wall of a central through hole of the connecting flange 1 and the outer wall of the corresponding connecting shaft 5 along the axial direction, the oil seal 13 adopts an FB-type oil seal to play a role in sealing and avoid oil leakage and oil seepage, a limiting step corresponding to the outer ring of the first bearing 4 is arranged at the corresponding end of the central through hole of the connecting flange 1, a limiting convex shoulder is arranged on a shaft body of the connecting shaft 5 between the first bearing 4 and the second bearing 7, and the connecting shaft 5 can be ensured to rotate stably by arranging the two bearings; in addition, the lubricating grease 3 is arranged between the first bearing 4 and the second bearing 7, so that the full lubrication of the bearings is ensured, the noise generated by the operation of the bearings is reduced, and the service life of the bearings is prolonged;

a blind hole 11 into which the adaptive key sleeve 6 is inserted is formed in the center of the end face, close to the motor 16, of the shaft end of the connecting shaft 5, the inner wall of the blind hole 11 and the outer wall of the key sleeve 6 are circumferentially positioned through a flat key 12, and a limiting retainer ring 9 for axially positioning the key sleeve 6 is arranged on the inner wall of the outer end of the blind hole 11, so that the key sleeve 6 is convenient to disassemble and replace; according to the requirement, the distance between the inner end of the inner wall of the blind hole 11 corresponding to the key groove of the flat key 12 and the limit retainer ring 9 is equal to the length of the flat key 12, so that when the limit retainer ring 9 is installed, not only can the key sleeve 6 be axially positioned, but also the flat key 12 can be axially positioned, and the flat key 12 is prevented from moving to influence the rotation balance of the connecting shaft 5; in addition, the depth of the blind hole 11 is larger than the length of the key sleeve 6, and when the conical motor is matched, the impact of the axial movement of the motor on the speed reducer 15 can be effectively reduced.

Implement high power density speed reducer connection structure, correspond in the blind hole 11 of connecting axle 5 and insert behind the key sleeve 6 that corresponds the 16 output shafts of motor, install parallel key 12 and spacing retaining ring 9 and fix a position, then correspond connecting axle 5 the input shaft of speed reducer 15, with screw in to the screw hole on step through-hole 2 and the 15 flanges of speed reducer, thereby fix connection structure and speed reducer 15 earlier, then insert the output shaft of motor 16 in the hole 10 of key sleeve 6, can with the flange of motor 16 and flange 1's corresponding end fixed connection.

The details of the present invention not described in detail are prior art, and it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the scope of the claims.

Claims

1. The utility model provides a high power density speed reducer connection structure, characterized by: the connecting device comprises a connecting flange (1) with the outer edges of two end faces capable of being respectively detachably and fixedly connected with an input end flange of a speed reducer (15) and an output end flange of a motor (16), a connecting shaft (5) with one end capable of being in transmission connection with an input shaft of the speed reducer (15), and a key sleeve (6) with an inner hole (10) capable of being in plug-in matching with an output shaft of the corresponding motor (16); the other end of the connecting shaft (5) is coaxially and rotatably inserted into the central through hole of the connecting flange (1) and is axially and radially positioned with the connecting flange (1); the connecting shaft is characterized in that a blind hole (11) into which the adaptive key sleeve (6) is inserted is formed in the center of the end face of the shaft end, close to the motor (16), of the connecting shaft (5), the inner wall of the blind hole (11) and the outer wall of the key sleeve (6) are circumferentially positioned through a flat key (12), and a limiting check ring (9) for axially positioning the key sleeve (6) is arranged on the inner wall of the outer end of the blind hole (11).

2. The high power density reduction gear connection structure according to claim 1, wherein: the end face outer edge of the connecting flange (1) close to the speed reducer (15) is uniformly provided with a plurality of step through holes (2) with the diameters changed from small to large, and the end face outer edge of the connecting flange (1) close to the motor (16) is uniformly provided with a plurality of thread through holes (14) in a surrounding mode.

3. The connection structure of a high power density speed reducer according to claim 1, wherein: the connecting flange is characterized in that a first bearing (4), a second bearing (7), a bearing retainer ring (8) and an oil seal (13) are sequentially arranged between the inner wall of a central through hole of the connecting flange (1) and the outer wall of the corresponding connecting shaft (5) along the axial direction, a limiting step corresponding to the outer ring of the first bearing (4) is arranged at the corresponding end of the central through hole of the connecting flange (1), and a limiting convex shoulder is arranged on a shaft body, between the first bearing (4) and the second bearing (7), of the connecting shaft (5).

4. The high power density reduction gear connection structure according to claim 3, wherein: and lubricating grease (3) is arranged between the first bearing (4) and the second bearing (7).

5. The high power density reduction gear connection structure according to claim 1, wherein: the distance between the inner end of the inner wall of the blind hole (11) corresponding to the key groove of the flat key (12) and the limiting retainer ring (9) is equal to the length of the flat key (12).

6. The high power density reduction gear connection structure according to claim 1, wherein: the depth of the blind hole (11) is larger than the length of the key sleeve (6).