CN217883051U

CN217883051U - Direct-connection motor of planetary reducer

Info

Publication number: CN217883051U
Application number: CN202221868730.XU
Authority: CN
Inventors: 朱辉兵; 江建斌
Original assignee: Zhejiang Sankai Mechanical And Electrical Co ltd
Current assignee: Zhejiang Sankai Mechanical And Electrical Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-11-22
Anticipated expiration: 2032-07-19

Abstract

The utility model provides a planetary reducer directly allies oneself with motor belongs to mechanical technical field. It has solved the current not good problem of motor life-span. The direct-connection motor of the planetary reducer comprises a machine barrel, a rotating shaft arranged in the machine barrel and a barrel arranged at the front end of the machine barrel, wherein the front end of the rotating shaft extends out of the machine barrel, an output shaft is arranged in the barrel in a rotating mode, an inner gear ring is arranged between the barrel and the machine barrel, the front end of the inner gear ring is fixedly connected with the barrel in a sealing mode, the rear end of the inner gear ring is fixedly connected with the machine barrel through a connecting ring, a planetary gear mechanism used for connecting the output shaft and the rotating shaft is arranged in the inner gear ring, and two ends of the connecting ring are respectively sealed with the inner gear ring and the machine barrel through a first sealing ring and a second sealing ring; and a sealing ring with an L-shaped axial section is coaxially and fixedly arranged in the connecting ring, the sealing ring is sleeved outside the rotating shaft and is positioned between the planetary gear mechanism and the machine barrel, two ends of the sealing ring respectively form sealing with the inner gear ring and the machine barrel, and the first sealing ring and the second sealing ring are positioned outside the sealing ring. The direct-connected motor of the planetary reducer has long service life.

Description

Direct-connection motor of planetary reducer

Technical Field

The utility model belongs to the technical field of the motor, a planetary reducer direct-connection motor is related to, especially a planetary reducer direct-connection motor for deep water.

Background

At present, a motor and a planetary reducer are generally connected through a coupler or other transmission modes, so that the overall size is large, and the structure is relatively overstaffed.

In view of the above problems, people have recognized the disadvantages and improved the problems, for example, a direct connection planetary reduction motor (application number: 202210471060.6) with a compact structure disclosed in chinese patent library includes a motor body and a planetary reducer body, the motor includes a motor output shaft, a key groove is formed on the motor output shaft, a flat key is adapted on the key groove, the planetary reducer body includes a planetary reducer housing, a first stage planetary gear assembly, a second stage planetary gear assembly and a planetary output shaft, the second stage planetary gear assembly is driven by the first stage planetary gear assembly to rotate, the first stage planetary gear assembly includes a first stage sun gear, a sun gear shaft is mounted on the first stage sun gear, the sun gear shaft is provided with an external spline, the motor output shaft is connected with a motor shaft connecting spline housing through the flat key, the motor shaft connecting spline housing is connected with the external spline of the first stage sun gear through its own internal spline, so that the power of the motor is transmitted to the planetary output shaft through the first stage sun gear assembly and the second stage sun gear assembly.

The junction of above-mentioned gear motor shell part generally adopts the sealing washer to form sealedly, and when the sealing washer appeared a bit to damage, inside water just can see through the sealing washer entering shell, influenced whole motor life-span.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided a long-lived planetary reducer direct-connection motor.

The purpose of the utility model can be realized by the following technical proposal: a direct-connection motor of a planetary reducer comprises a machine barrel, a rotating shaft arranged in the machine barrel and a barrel arranged at the front end of the machine barrel, wherein the front end of the rotating shaft extends out of the machine barrel, an output shaft is rotationally arranged in the barrel, an inner gear ring is arranged between the barrel and the machine barrel, the front end of the inner gear ring is fixedly connected with the barrel in a sealing manner, the rear end of the inner gear ring is fixedly connected with the machine barrel through a connecting ring, and a planetary gear mechanism used for connecting the output shaft and the rotating shaft is arranged in the inner gear ring; and a sealing ring with an L-shaped axial section is coaxially and fixedly arranged in the connecting ring, the sealing ring is sleeved outside the rotating shaft and is positioned between the planetary gear mechanism and the machine barrel, two ends of the sealing ring respectively form sealing with the inner gear ring and the machine barrel, and the first sealing ring and the second sealing ring are both positioned outside the sealing ring.

Two ends of the sealing ring are respectively sealed with the inner gear ring and the machine barrel, so that a sealed cavity is formed among the sealing ring, the inner gear ring, the connecting ring and the machine barrel, and the sealed cavity is positioned on the inner sides of the first sealing ring and the second sealing ring and used for blocking water seeping from the first sealing ring and the second sealing ring, thereby effectively prolonging the sealing path and prolonging the service life of the motor.

In the direct-connected motor of the planetary reducer, an annular step I is formed on the inner wall of the rear end of the inner gear ring, a convex ring matched with the annular step I is integrally formed at the front end of the connecting ring, and the convex ring is inserted into the annular step I. The annular step I is matched with the convex ring and used for installation and guidance, and the inner gear ring and the connecting ring are convenient to assemble.

In foretell planetary reducer direct-connected motor, annular step one comprises annular diapire and the annular lateral wall with the contact of bulge loop lateral wall, and the tight location of sealing ring rear end clamp is between annular diapire and bulge loop, and at this moment, sealing ring both ends face forms sealedly with annular diapire and bulge loop terminal surface in close contact with respectively, has simple structure, the convenient advantage of equipment.

In the direct-connected motor of the planetary reducer, the front end surface of the machine barrel is provided with the annular groove matched with the front end of the sealing ring, and the front end of the sealing ring is inserted and embedded in the annular groove. The sealing ring is matched with the annular groove, and the sealing ring has the advantages of simple structure and convenience in installation on the premise of realizing the sealing and fixedly connecting of the sealing ring and the machine barrel.

In foretell planetary reducer direct-connected machine, the ring channel is including two groove lateral walls that set up side by side, and the rear end inboard of two groove lateral walls is the leading-in face that is the toper, and two leading-in faces set up along the ring channel centrosymmetry for the sealing ring installation direction, the convenient equipment.

In foretell planetary reducer direct-connected motor, ring gear both ends face sticiss respectively on barrel and go-between, is equipped with the round on the go-between and is the axial through hole one that sets up, and barrel and ring gear are provided with screw hole and through-hole two respectively axially, and through-hole one, through-hole two and screw hole three the same and position one-to-one, all are equipped with the bolt in every through-hole one, and the bolt pole portion passes through hole two and screw in screw hole, and the bolt head sticiss on the go-between. Under the cooperation of the bolt, the first through hole, the second through hole and the threaded hole, the barrel, the connecting ring and the inner gear ring are connected in series at the same time, and the novel gear ring has the advantages of simple structure and convenience in assembly.

In the direct-connected motor of the planetary reducer, the rear end face of the cylinder body is provided with an annular mounting groove which is coaxial with the cylinder body, a third sealing ring is arranged in the mounting groove, and two side faces of the third sealing ring are respectively pressed on the bottom wall of the mounting groove and the front end face of the inner gear ring, so that the sealing effect formed between the cylinder body and the inner gear ring is further enhanced.

In the direct-connected motor of the planetary reducer, the guide part which is annular and matched with the rear end of the inner gear ring is integrally formed on the front end surface of the cylinder body, and the guide part is inserted in the inner gear ring and used for connecting and guiding the cylinder body and the inner gear ring, so that the direct-connected motor of the planetary reducer is convenient to assemble.

In the direct-connected motor of the planetary reducer, the outer wall of the machine barrel is integrally provided with the annular flange, the annular flange is tightly pressed on the connecting ring and is fixedly connected with the connecting ring through a circle of screws, and the second sealing ring is tightly clamped between the annular flange and the connecting ring.

In the direct-connection motor of the planetary reducer, the front end of the machine barrel extends into the connecting ring, the inner wall of the front end of the connecting ring is provided with the annular step II for placing the sealing ring II, the sealing ring II is sleeved outside the machine barrel, and two end faces of the sealing ring II are respectively tightly pressed on the bottom wall of the annular step II and the end face of the annular flange, so that the sealing path between the machine barrel and the connecting ring is prolonged, and the working stability is further improved.

Compared with the prior art, the direct connection motor of the planetary reducer is provided with the sealing rings, two ends of each sealing ring are respectively sealed with the inner gear ring and the machine barrel, so that a sealed cavity is formed among the sealing rings, the inner gear rings, the connecting rings and the machine barrel, and the sealed cavities are all positioned on the inner sides of the first sealing rings and the second sealing rings and used for blocking water seeping from the first sealing rings and the second sealing rings, so that the sealing path is effectively prolonged, and the service life of the motor is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a direct-connected motor of the planetary reducer.

Fig. 2 is an enlarged schematic view of a structure at a in fig. 1.

Fig. 3 is a schematic view of the connection structure of the sealing ring and the cylinder.

In the figure, 1, a cylinder; 1a, an annular groove; 1b, a lead-in surface; 1c, an annular flange; 2. a rotating shaft; 3. a cylinder body; 3a, a guide part; 4. an inner gear ring; 5. a connecting ring; 5a, a convex ring; 6. a first sealing ring; 7. a second sealing ring; 8. an output shaft; 8a, a planet carrier I; 9. an annular oil seal; 10. a first planet gear; 11. a second planet gear; 12. a second planet carrier; 13. a gear shaft; 14. a seal ring; 15. a bolt; 16. a third sealing ring; 17. and (4) a screw.

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 direct-coupled motor of the planetary reducer comprises a motor body and a planetary component arranged on the front side of the motor body.

Wherein the content of the first and second substances,

the motor body is of an existing structure and comprises a machine barrel 1 and a rotating shaft 2 arranged in the machine barrel 1, and the front end of the rotating shaft 2 extends out of the machine barrel 1. As shown in fig. 1 and 2, a barrel 3 is arranged at the front end of a machine barrel 1, an inner gear ring 4 is arranged between the barrel 3 and the machine barrel 1, the inner gear ring 4, the barrel 3 and the machine barrel 1 are coaxially arranged, the front end of the inner gear ring 4 is fixedly connected with the barrel 3 in a sealing manner, the rear end of the inner gear ring 4 is fixedly connected with the machine barrel 1 through a connecting ring 5, and two ends of the connecting ring 5 are respectively sealed with the inner gear ring 4 and the machine barrel 1 through a first sealing ring 6 and a second sealing ring 7. An output shaft 8 is rotationally arranged in the cylinder 3, the output shaft 8 and the rotating shaft 2 are coaxially arranged, and a planetary gear mechanism used for connecting the output shaft 8 and the rotating shaft 2 is arranged in the inner gear ring 4.

In particular, the present invention relates to a method for producing,

the output shaft 8 is rotatably supported on the cylinder 3 through a bearing, the outer wall of the output shaft 8 forms sealing with the inner wall of the cylinder 3 through an annular oil seal 9, and the annular oil seal 9 is positioned on the front side of the bearing. In an actual product, the front end of the output shaft 8 extends out of the cylinder 3, and the rear end of the output shaft 8 is formed with a planet carrier 8a.

The planetary gear mechanism is as follows: the machine comprises a circle of first planet gears 10 and a circle of second planet gears 11 which are arranged in an internal gear ring 4, wherein the first planet gears 10 and the second planet gears 11 are distributed along the axial direction of the internal gear ring 4, the second planet gears 11 are positioned between the first planet gears 10 and a machine barrel 1, and the first planet gears 10 and the second planet gears 11 are both meshed with the internal gear ring 4. A second planet carrier 12 is arranged between the first planet gear 10 and the second planet gear 11, a second pin shaft is coaxially arranged in the second planet gear 11, the second pin shaft is rotatably connected with the second planet gear 11 through a bearing, one end, far away from the second planet gear 11, of the second pin shaft is fixedly connected with the second planet carrier 12, a second sun gear meshed with the second planet gear 11 is formed on the output shaft 8, a gear shaft 13 coaxial with the output shaft 8 is fixed on the second planet carrier 12, a first sun gear meshed with the first planet gear 10 is formed on the gear shaft 13, a first pin shaft is coaxially arranged in the first planet gear 10, the first pin shaft is rotatably connected with the first planet gear 10 through a bearing, one end, far away from the first planet gear 10, of the first pin shaft is fixedly connected with a first planet carrier 8a, and power at the position of the rotating shaft 2 is transmitted to the output shaft 8 after being decelerated by two gears.

As shown in fig. 1 and 2, a sealing ring 14 with an L-shaped axial cross section is coaxially and fixedly arranged in the connecting ring 5, the sealing ring 14 is sleeved outside the rotating shaft 2, and the sealing ring 14 is located between the planetary gear mechanism and the barrel 1. Two ends of the sealing ring 14 respectively form sealing with the inner gear ring 4 and the machine barrel 1, and the sealing ring I6 and the sealing ring II 7 are positioned outside the sealing ring 14. Two ends of the sealing ring 14 are respectively sealed with the inner gear ring 4 and the machine barrel 1, so that a sealed chamber is formed among the sealing ring 14, the inner gear ring 4, the connecting ring 5 and the machine barrel 1 and is positioned on the inner side of the first sealing ring 6 and used for blocking water seeping from the first sealing ring 6 and the second sealing ring 7, a sealing path is effectively prolonged, and the service life of the motor is prolonged.

In the present embodiment, it is preferred that,

the sealing ring 14 is mounted as follows: as shown in fig. 2 and 3, a first annular step coaxial with the inner ring gear 4 is formed on the inner wall of the rear end of the inner ring gear 4, and the first annular step is composed of an annular side wall and an annular bottom wall. A convex ring 5a matched with the first annular step is integrally formed at the front end of the connecting ring 5, the convex ring 5a is inserted into the first annular step, and at the moment, the annular side wall is attached to the outer wall of the convex ring 5a for installation and guiding, so that the inner gear ring 4 and the connecting ring 5 can be conveniently assembled. The rear end of the sealing ring 14 is clamped and positioned between the annular bottom wall and the convex ring 5a, and at the moment, two end faces of the sealing ring 14 are respectively in close contact with the annular side wall and the end face of the convex ring 5a to form sealing, so that the sealing device has the advantages of simple structure and convenience in assembly. An annular groove 1a matched with the front end of the sealing ring 14 is arranged on the front end surface of the machine barrel 1, and the front end of the sealing ring 14 is inserted and embedded in the annular groove 1 a. The sealing ring 14 is matched with the annular groove 1a, and the sealing ring 14 has the advantages of simple structure and convenience in installation on the premise of realizing the sealing and the fixed connection of the machine barrel 1.

Further, the annular groove 1a includes two groove side walls arranged in parallel, inner sides of rear ends of the two groove side walls are both tapered leading-in surfaces 1b, and the two leading-in surfaces 1b are arranged symmetrically along the center of the annular groove 1a, so that the sealing ring 14 is installed and guided, and the assembly is convenient.

The installation modes of the inner gear ring 4, the connecting ring 5 and the barrel 3 are as follows: 4 both ends faces of ring gear are sticis respectively on barrel 3 and go-between 5, it is the axial through hole one that sets up to be equipped with the round on the go-between 5, axially be provided with screw hole and through-hole two on barrel 3 and the ring gear 4 respectively, through-hole one, the same and position one-to-one of through-hole two and screw hole three quantity, all be equipped with bolt 15 in every through-hole one, bolt 15 pole portion passes through-hole two and screw in screw hole, and the 15 heads of bolt sticiss on the go-between 5. Under the matching of the bolt 15, the through hole I, the through hole II and the threaded hole, the barrel 3, the connecting ring 5 and the inner gear ring 4 are connected in series at the same time, and the device has the advantages of simple structure and convenience in assembly.

Further, an annular mounting groove coaxial with the barrel 3 is formed in the rear end face of the barrel 3, a third sealing ring 16 is arranged in the mounting groove, and two side faces of the third sealing ring 16 are respectively tightly pressed on the bottom wall of the mounting groove and the front end face of the inner gear ring 4, so that the sealing effect formed between the barrel 3 and the inner gear ring 4 is further enhanced. The front end face of the barrel 3 is integrally formed with a guide part 3a which is annular and matched with the rear end of the inner gear ring 4, and the guide part 3a is inserted in the inner gear ring 4 and used for connecting and guiding the barrel 3 and the inner gear ring 4, so that the assembly is convenient.

The installation of barrel 1 and connecting ring 5 is as follows: an annular flange 1c is integrally formed on the outer wall of the machine barrel 1, the annular flange 1c is tightly pressed on the connecting ring 5, the annular flange 1c is fixedly connected with the connecting ring 5 through a circle of screws 17, and the first sealing ring 6 is tightly clamped between the annular flange 1c and the connecting ring 5.

The first sealing ring 6 is installed as follows: the front end of the machine barrel 1 extends into the connecting ring 5, the inner wall of the front end of the connecting ring 5 is provided with a second annular step used for placing a second sealing ring 7, the second sealing ring 7 is sleeved outside the machine barrel 1, and two end faces of the second sealing ring 7 are respectively tightly pressed on the bottom wall of the second annular step and the end face of the annular flange 1c, so that the sealing path between the machine barrel 1 and the connecting ring 5 is prolonged, and the working stability is further improved.

The second sealing ring 7 is mounted as follows: an annular positioning groove is formed in the front end face of the connecting ring 5, the second sealing ring 7 is arranged in the positioning groove, and two side faces of the second sealing ring 7 are tightly pressed on the bottom wall of the positioning groove and the rear end face of the inner gear ring 4 respectively.

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

Claims

1. A direct connection motor of a planetary reducer comprises a machine barrel (1), a rotating shaft (2) arranged in the machine barrel (1) and a barrel body (3) arranged at the front end of the machine barrel (1), wherein the front end of the rotating shaft (2) extends out of the machine barrel (1), an output shaft (8) is rotatably arranged in the barrel body (3), an inner gear ring (4) is arranged between the barrel body (3) and the machine barrel (1), the front end of the inner gear ring (4) is fixedly connected with the barrel body (3) in a sealing mode, the rear end of the inner gear ring (4) is fixedly connected with the machine barrel (1) through a connecting ring (5), and a planetary gear mechanism used for connecting the output shaft (8) and the rotating shaft (2) is arranged in the inner gear ring (4), and is characterized in that two ends of the connecting ring (5) are respectively sealed with the inner gear ring (4) and the machine barrel (1) through a first sealing ring (6) and a second sealing ring (7); a sealing ring (14) with an L-shaped axial section is coaxially and fixedly arranged in the connecting ring (5), the sealing ring (14) is sleeved outside the rotating shaft (2), the sealing ring (14) is arranged between the planetary gear mechanism and the machine barrel (1), two ends of the sealing ring (14) form sealing with the inner gear ring (4) and the machine barrel (1) respectively, and the sealing ring I (6) and the sealing ring II (7) are arranged outside the sealing ring (14).

2. The direct-connected motor of a planetary reducer as claimed in claim 1, wherein the inner wall of the rear end of the inner gear ring (4) is formed with a first annular step, the front end of the connecting ring (5) is integrally formed with a convex ring (5 a) matching with the first annular step, and the convex ring (5 a) is inserted into the first annular step.

3. A direct motor of a planetary reducer as defined in claim 2, wherein the first annular step is formed by an annular bottom wall and an annular side wall in contact with the outer side wall of the male ring (5 a), and the rear end of the seal ring (14) is clamped and positioned between the annular bottom wall and the male ring (5 a).

4. A planetary reducer direct-connected motor according to claim 1, 2 or 3, wherein a ring groove (1 a) matched with the front end of the sealing ring (14) is arranged on the front end surface of the cylinder (1), and the front end of the sealing ring (14) is inserted and embedded in the ring groove (1 a).

5. A direct-connected motor of a planetary reducer according to claim 4, wherein the annular groove (1 a) comprises two groove side walls arranged in parallel, the inner sides of the rear ends of the two groove side walls are both tapered lead-in surfaces (1 b), and the two lead-in surfaces (1 b) are arranged along the center of the annular groove (1 a) symmetrically.

6. The direct-connection motor of the planetary reducer according to claim 1, wherein two end faces of the inner gear ring (4) are respectively pressed on the cylinder body (3) and the connecting ring (5), a circle of first through holes axially penetrating through the connecting ring (5) are arranged on the connecting ring (5), threaded holes and second through holes are respectively axially arranged on the cylinder body (3) and the inner gear ring (4), the number of the first through holes, the number of the second through holes and the number of the threaded holes are the same, the positions of the first through holes and the positions of the second through holes are in one-to-one correspondence, a bolt (15) is arranged in each first through hole, a rod part of the bolt (15) penetrates through the second through holes and is screwed into the threaded holes, and the head part of the bolt (15) is pressed on the connecting ring (5).

7. The direct-connection motor of the planetary reducer according to claim 6, wherein an annular mounting groove coaxial with the cylinder (3) is formed in the rear end face of the cylinder (3), a third sealing ring (16) is arranged in the mounting groove, and two side faces of the third sealing ring (16) are respectively tightly pressed on the bottom wall of the mounting groove and the front end face of the inner gear ring (4).

8. A direct-connected motor of a planetary reducer according to claim 6 or 7, characterized in that a guide part (3 a) which is annular and matched with the rear end of the inner gear ring (4) is integrally formed on the front end face of the cylinder (3), and the guide part (3 a) is inserted in the inner gear ring (4).

9. The direct-connection motor of the planetary reducer according to claim 1, wherein an annular flange (1 c) is integrally formed on the outer wall of the cylinder (1), the annular flange (1 c) is tightly pressed on the connecting ring (5), the annular flange (1 c) is fixedly connected with the connecting ring (5) through a circle of screws (17), and the second sealing ring (7) is tightly clamped between the annular flange (1 c) and the connecting ring (5).

10. The direct-connection motor of the planetary reducer as claimed in claim 9, wherein the front end of the cylinder (1) extends into the connecting ring (5), an annular step II for placing the second sealing ring (7) is formed in the inner wall of the rear end of the connecting ring (5), the second sealing ring (7) is sleeved outside the cylinder (1), and two end faces of the second sealing ring (7) are respectively pressed on the bottom wall of the annular step II and the end face of the annular flange (1 c).