CN217653199U - Speed reducer input shaft connecting structure - Google Patents
Speed reducer input shaft connecting structure Download PDFInfo
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- CN217653199U CN217653199U CN202221853560.8U CN202221853560U CN217653199U CN 217653199 U CN217653199 U CN 217653199U CN 202221853560 U CN202221853560 U CN 202221853560U CN 217653199 U CN217653199 U CN 217653199U
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- input shaft
- connecting seat
- speed reducer
- gear
- shaft
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Abstract
The utility model relates to a speed reducer technical field especially relates to a speed reducer input shaft connection structure, including connecting seat, motor flange, input shaft and speed ratio gear, the input at the reduction box is fixed to the connecting seat, and the motor flange is fixed on the connecting seat, and the input shaft rotates with the connecting seat to be connected, and the speed ratio gear is pegged graft in the one end of input shaft, and the speed ratio gear is including an organic whole even axial region and gear portion that sets up, even axial region setting is in one side of gear portion, even axial region insert in the jack and rather than coaxial rotation. The gear shaft is designed into a split structure, namely the input shaft and the speed ratio gear are connected in an inserting mode, and when the speed ratio gear is damaged or an oil seal on the input shaft is damaged, the quick replacement can be realized; the connected mode of pegging graft is convenient for assemble and dismantle, and on realizing coaxial driven basis, the input shaft can reuse, reduces cost of maintenance, compares in traditional interference connected mode, need not use the press at the in-process of erection joint, can improve whole assembly efficiency.
Description
Technical Field
The utility model relates to a speed reducer technical field especially relates to a speed reducer input shaft connection structure.
Background
At present, a speed ratio gear and an input shaft of a speed reducer are assembled in an interference fit mode or are integrally formed, a gear shaft formed by the interference fit mode is pressed and installed together with the speed ratio gear and the input shaft through a special press, the purpose of torsion is achieved through the interference fit mode, and the input shaft and the speed ratio gear are integrally formed.
When the gear ratio gear on the integrally formed or interference fit gear shaft is damaged, the whole gear shaft needs to be replaced, so that the after-sale maintenance cost is high; wherein gear shaft through interference fit is at the course of the work, and the velocity ratio gear on the input shaft has the risk that drops when being applied to partial heavy load occasion, and in the assembling process of gear shaft, need overlap on the input shaft and establish the oil blanket, the oil blanket belongs to vulnerable part, and when the oil blanket became invalid and is changed, the dismantlement of velocity ratio gear on the input shaft that is not convenient for of current gear shaft structure needs to dismantle the change with whole gear shaft.
The information disclosed in this background section is only for enhancement of understanding of the general background of the disclosure and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a speed reducer input shaft connection structure to the defect that exists among the prior art.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a speed reducer input shaft connecting structure includes: the speed reducer comprises a connecting seat, a motor flange, an input shaft and a speed ratio gear, wherein the connecting seat is fixed at the input end of a speed reducing box body, the motor flange is fixed on the connecting seat, the input shaft is rotatably connected with the connecting seat, and the speed ratio gear is inserted at one end of the input shaft;
the speed ratio gear includes even axial region and gear portion that an organic whole set up, even the axial region sets up one side of gear portion and rather than coaxial setting the jack has been seted up to the one end of input shaft coaxially, even axial region inserts in the jack and rather than coaxial rotation, the input shaft is kept away from the one end of jack is passed through the shaft coupling and is linked to each other with the motor.
Furthermore, a key groove and a positioning hole are formed in the connecting shaft part, and a limiting groove and a screw hole are formed in the inner wall of the jack;
the key groove and the positioning hole are respectively arranged corresponding to the limiting groove and the screw hole, the key groove and the positioning hole are arranged along the circumferential direction of the connecting shaft portion at an included angle of 180 degrees, and the limiting groove is arranged along the axial direction of the jack.
Further, a flat key is arranged in the key groove, the limiting groove is matched with the flat key, and the connecting shaft part and the jack coaxially rotate through the flat key;
a set screw is arranged in the screw hole, and one end of the set screw penetrates through the screw hole and is inserted into the positioning hole.
Furthermore, a bearing is arranged in the through hole of the connecting seat, and the connecting shaft part is rotatably connected with the connecting seat through the bearing.
Furthermore, one end of the set screw, which is far away from the positioning hole, sinks into the screw hole.
Furthermore, a connecting part is arranged at one end of the input shaft, which is far away from the jack, and the input shaft is connected with the coupler through the connecting part;
the motor flange is provided with a sealing structure at one end close to the connecting seat, and the connecting part is arranged corresponding to the sealing structure and is rotationally connected with the motor flange.
Further, seal structure is including seting up the seal groove of motor flange tip, and set up sealing washer in the seal groove, the sealing washer cover is established on the connecting portion.
Furthermore, the connecting seat is fixedly connected with the box body through bolts, the motor flange is fixedly connected with the connecting seat through bolts, and a rubber ring is arranged between the connecting end face of the connecting seat and the connecting end face of the motor flange.
The beneficial effects of the utility model are that:
in the application, a gear shaft at the input end of the speed reducer is designed into a split structure, namely, an input shaft is connected with a speed ratio gear in an inserting manner, and when the speed ratio gear is damaged or an oil seal on the input shaft is damaged, the speed ratio gear can be quickly replaced; the spliced connection mode is convenient to assemble and disassemble, on the basis of realizing coaxial transmission, the input shaft can be repeatedly utilized, the maintenance cost is reduced, and compared with the traditional interference connection mode, a press is not needed in the assembling and connecting process, and the overall assembling efficiency can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a gear shaft connecting structure of an input end of a speed reducer of the utility model;
FIG. 2 is a schematic structural view of a medium speed ratio gear of the present invention;
fig. 3 is a cross-sectional view of the middle gear shaft connecting structure of the present invention.
Reference numerals: 1. a connecting seat; 11. a bearing; 12. a rubber ring; 2. a motor flange; 21. a sealing structure; 211. a sealing groove; 212. a seal ring; 3. an input shaft; 31. a jack; 311. a limiting groove; 312. screw holes; 32. tightening the screw; 33. a connecting portion; 4. a speed ratio gear; 41. a connecting shaft portion; 411. a keyway; 412. positioning holes; 42. a gear portion; 43. a flat bond; 5. a coupler is provided.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 3, the input shaft connection structure of the speed reducer comprises a connection seat 1, a motor flange 2, an input shaft 3 and a speed ratio gear 4, wherein the connection seat 1 is fixed at the input end of a speed reduction box body, the motor flange 2 is fixed on the connection seat 1, the input shaft 3 is rotatably connected with the connection seat 1, and the speed ratio gear 4 is inserted at one end of the input shaft 3; the speed ratio gear 4 comprises a connecting shaft portion 41 and a gear portion 42 which are integrally arranged, the connecting shaft portion 41 is arranged on one side of the gear portion 42 and is coaxially arranged with the gear portion, an insertion hole 31 is coaxially formed in one end of the input shaft 3, the connecting shaft portion 41 is inserted into the insertion hole 31 and rotates coaxially with the insertion hole 31, and one end, far away from the insertion hole 31, of the input shaft 3 is connected with the motor through a coupler 5.
In the application, a gear shaft at the input end of the speed reducer is designed to be a split structure, namely, the input shaft 3 is connected with the speed ratio gear 4 in an inserting manner, and when the speed ratio gear 4 is damaged or an oil seal on the input shaft 3 is damaged, the quick replacement can be realized; the connected mode of pegging graft is convenient for assemble and dismantle, and on realizing coaxial driven basis, input shaft 3 can reuse, reduces cost of maintenance, compares in traditional interference connected mode, need not use the press at the in-process of erection joint, can improve whole assembly efficiency.
As a preferred embodiment of the present application, as shown in fig. 2 and 3, a key slot 411 and a positioning hole 412 are formed on the coupling shaft portion 41, and a limiting slot 311 and a screw hole 312 are formed on the inner wall of the insertion hole 31; the key slot 411 and the positioning hole 412 are respectively arranged corresponding to the limiting slot 311 and the screw hole 312, the key slot 411 and the positioning hole 412 are arranged along the circumferential direction of the connecting shaft part 41 at an included angle of 180 degrees, and the limiting slot 311 is arranged along the axial direction of the insertion hole 31.
A flat key 43 is arranged in the key slot 411, the limiting groove 311 is matched with the flat key 43, and the connecting shaft part 41 and the insertion hole 31 coaxially rotate through the flat key 43; a set screw 32 is provided in the screw hole 312, and one end of the set screw 32 is inserted through the screw hole 312 and into the positioning hole 412.
The key slot 411 and the positioning hole 412 are both arranged on the circumferential side wall of the connecting shaft part 41 of the speed ratio gear 4, and the key slot and the positioning hole are arranged at a flat angle, so that the positioning processing is facilitated; the limiting groove 311 in the insertion hole 31 at the end of the input shaft 3 is correspondingly provided with the flat key 43, the limiting groove 311 extends from the end of the insertion hole 31 along the axial direction, in the assembling process, the flat key 43 and the speed ratio gear 4 are inserted into the insertion hole 31 after the assembling is completed, and the input shaft 3 drives the speed ratio gear 4 to coaxially rotate through the flat key 43.
After the connecting shaft portion 41 of the speed ratio gear 4 is inserted into the insertion hole 31, the positioning hole 412 is aligned with the screw hole 312, the set screw 32 is screwed into the screw hole 312 on the outer wall of the input shaft 3 and extends into the positioning hole 412, the connecting shaft portion 41 is axially locked in the insertion hole 31, the connecting shaft portion 41 is prevented from axially shifting in the insertion hole 31, and the stable connection between the speed ratio gear 4 and the input shaft 3 is realized.
In the working process, the motor is fixed on the motor flange 2 and is taken up, the rotating shaft of the motor is connected with the input shaft 3 through the coupler 5, and after the torque of the motor is transmitted to the input shaft 3 through the coupler 5, the torque is transmitted to the speed ratio gear 4 through the flat key 43 by the input shaft 3. The set screw 32 serves as an axial positioning to prevent the ratio gear 4 from moving axially due to the axial force.
In the present application, a bearing 11 is disposed in the through hole of the connecting socket 1, and the connecting shaft portion 41 is rotatably connected with the connecting socket 1 through the bearing 11; the end of set screw 32 remote from alignment hole 412 is recessed into screw hole 312. The set screw 32 is selected to have a suitable length during the assembly process, so as to avoid extending out of the screw hole 312 and affecting the fit of the input shaft 3 and the inner ring of the bearing 11.
The sealing between the gear shaft at the input end of the reduction box and the box body is realized through the rubber ring 12 positioned between the connecting end surfaces of the connecting seat 1 and the motor flange 2 and the sealing structure 21 at the end part of the motor flange 2. As shown in fig. 3, a connecting portion 33 is disposed at an end of the input shaft 3 away from the insertion hole 31, and the input shaft 3 is connected to the coupling 5 through the connecting portion 33; one end of the motor flange 2 close to the connecting seat 1 is provided with a sealing structure 21, and the connecting part 33 is arranged corresponding to the sealing structure 21 and is rotationally connected with the motor flange 2. The sealing structure 21 includes a sealing groove 211 formed at an end of the motor flange 2, and a sealing ring 212 disposed in the sealing groove 211, wherein the sealing ring 212 is fitted over the connecting portion 33.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a speed reducer input shaft connection structure which characterized in that includes: the speed reducer is characterized by comprising a connecting seat (1), a motor flange (2), an input shaft (3) and a speed ratio gear (4), wherein the connecting seat (1) is fixed at the input end of a speed reducer box body, the motor flange (2) is fixed on the connecting seat (1), the input shaft (3) is rotatably connected with the connecting seat (1), and the speed ratio gear (4) is inserted at one end of the input shaft (3);
velocity ratio gear (4) are including even axial region (41) and gear part (42) of integrative setting, even axial region (41) set up one side of gear part (42) and rather than coaxial setting jack (31) have been seted up to the one end of input shaft (3) is coaxial, even axial region (41) insert in jack (31) and rather than coaxial rotation, input shaft (3) are kept away from the one end of jack (31) is passed through shaft coupling (5) and is linked to each other with the motor.
2. The connection structure of the input shaft of the speed reducer according to claim 1, wherein a key slot (411) and a positioning hole (412) are formed in the connection shaft portion (41), and a limit groove (311) and a screw hole (312) are formed in the inner wall of the insertion hole (31);
the key groove (411) and the positioning hole (412) are respectively arranged corresponding to the limiting groove (311) and the screw hole (312), the key groove (411) and the positioning hole (412) are arranged at an included angle of 180 degrees along the circumferential direction of the shaft connecting portion (41), and the limiting groove (311) is arranged along the axial direction of the jack (31).
3. The reducer input shaft connecting structure according to claim 2, wherein a flat key (43) is provided in the key groove (411), the limit groove (311) is adapted to the flat key (43), and the connecting shaft portion (41) and the insertion hole (31) rotate coaxially through the flat key (43);
a set screw (32) is provided in the screw hole (312), and one end of the set screw (32) passes through the screw hole (312) and is inserted into the positioning hole (412).
4. The connection structure of the input shaft of the speed reducer according to claim 3, wherein a bearing (11) is arranged in the through hole of the connecting seat (1), and the connecting shaft part (41) is rotatably connected with the connecting seat (1) through the bearing (11).
5. The speed reducer input shaft connecting structure according to claim 4, wherein one end of the set screw (32) far away from the positioning hole (412) sinks into the screw hole (312).
6. The connection structure of the input shaft of the speed reducer according to claim 1, wherein a connecting part (33) is arranged at one end of the input shaft (3) far away from the jack (31), and the input shaft (3) is connected with the coupling (5) through the connecting part (33);
the motor flange (2) is close to one end of the connecting seat (1) and is provided with a sealing structure (21), and the connecting part (33) is arranged corresponding to the sealing structure (21) and is rotatably connected with the motor flange (2).
7. The connection structure of the input shaft of the speed reducer according to claim 6, wherein the sealing structure (21) comprises a sealing groove (211) formed at the end of the motor flange (2), and a sealing ring (212) arranged in the sealing groove (211), and the sealing ring (212) is sleeved on the connecting portion (33).
8. The connection structure of the input shaft of the speed reducer according to claim 1, wherein the connecting seat (1) is fixedly connected with a speed reducer box body through a bolt, the motor flange (2) is fixedly connected with the connecting seat (1) through a bolt, and a rubber ring (12) is arranged between the connecting end surfaces of the connecting seat (1) and the motor flange (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221853560.8U CN217653199U (en) | 2022-07-18 | 2022-07-18 | Speed reducer input shaft connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221853560.8U CN217653199U (en) | 2022-07-18 | 2022-07-18 | Speed reducer input shaft connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217653199U true CN217653199U (en) | 2022-10-25 |
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ID=83686130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221853560.8U Active CN217653199U (en) | 2022-07-18 | 2022-07-18 | Speed reducer input shaft connecting structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN217653199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116624563A (en) * | 2023-05-25 | 2023-08-22 | 三联传动机械有限公司 | A planetary reducer |
-
2022
- 2022-07-18 CN CN202221853560.8U patent/CN217653199U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116624563A (en) * | 2023-05-25 | 2023-08-22 | 三联传动机械有限公司 | A planetary reducer |
| CN116624563B (en) * | 2023-05-25 | 2023-10-24 | 三联传动机械有限公司 | Planetary reducer |
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