CN214425075U - Shell structure and flexible compensation type planetary gear speed reducer - Google Patents
Shell structure and flexible compensation type planetary gear speed reducer Download PDFInfo
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- CN214425075U CN214425075U CN202022840966.XU CN202022840966U CN214425075U CN 214425075 U CN214425075 U CN 214425075U CN 202022840966 U CN202022840966 U CN 202022840966U CN 214425075 U CN214425075 U CN 214425075U
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Abstract
The utility model discloses a shell structure and flexible compensation formula planetary gear speed reducer, shell structure includes: inner ring connecting piece, input shell and output shell. The inner ring connecting piece comprises a mounting part and a transmission part; the mounting part is mounted between the input shell and the output shell along the axial direction, and the mounting part, the input shell and the output shell are detachably connected through locking pieces; the inner side wall surface of the transmission part is in transmission connection with the transmission mechanism, and the outer side wall surface of the transmission part is abutted against the inner wall surface of the output shell. Elastic deformation can be realized through the transmission part, the transmission part generates tiny deformation in the transmission process, and locking is realized through the inner ring connecting piece and other shells, so that the transmission part is further ensured to be used as the meshing transmission stability of the gear ring and the transmission mechanism, the gap generated in the forward and reverse rotation process of the transmission mechanism is further reduced, the improvement of the precision is further ensured, and the requirement of uniform precision in the product period is realized.
Description
Technical Field
The utility model relates to a speed reducer technical field, concretely relates to shell structure and flexible compensation formula planetary gear speed reducer.
Background
The gear reducer is generally used for low-rotating-speed and high-torque transmission equipment, and the common reducer of the motor also has several pairs of gears with the same principle to achieve an ideal speed reduction effect, wherein the ratio of the number of the teeth of the large gear to the number of the teeth of the small gear is the transmission ratio. With the continuous development of the speed reducer industry, more and more enterprises apply the speed reducer.
The gear reducer with the existing structure has the defects that in the transmission process of the gear, gaps exist between transmission mechanisms, so that the forward rotation and overturning meshing degree is low, the actual transmission precision is low, and the requirement of uniform precision in a product period cannot be met.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model aims to solve the technical problem that the gear reducer among the prior art because at the transmission in-process of gear, there is the clearance between the drive mechanism, leads to corotation upset degree of engagement low, causes the defect that actual transmission precision is low.
Therefore, the utility model provides a shell structure, include:
the inner ring connecting piece comprises a mounting part and a transmission part;
the mounting part, the input shell and the output shell are detachably connected through locking pieces;
the inner side wall surface of the transmission part is in transmission connection with the transmission mechanism, and the outer side wall surface of the transmission part is abutted against the inner wall surface of the output shell.
Optionally, in the above casing structure, the transmission part is a flexible structure.
Optionally, in the above casing structure, the mounting portion is a flange body, and the flange body is provided with a plurality of mounting holes, and the mounting holes are suitable for the locking pieces to penetrate so as to be locked with the input casing and the output casing.
Optionally, in the above casing structure, the transmission portion has a transmission tooth protruding inward in the radial direction on the inner side wall surface, and the transmission tooth is in meshing transmission with the planet wheel of the transmission mechanism.
Optionally, in the above casing structure, a connecting casing is further disposed between the input casing and the inner ring connecting member;
the locking member comprises a first locking member and a second locking member
The first locking member is used for locking the input shell and the connecting shell;
the second locking member is used to lock the connection housing, the inner ring connector, and the output housing.
A compliance compensated planetary gear reducer comprising:
the shell structure is the shell structure;
the transmission mechanism is arranged in the shell structure and is in transmission connection with the shell structure; and two ends of the transmission mechanism are respectively connected with the output shaft and the input shaft.
Optionally, in the flexible compensation type planetary gear reducer with the above structure, the transmission mechanism includes:
a sun gear connected with the input shaft;
the planet gear is in meshing transmission with the outer wall surface of the sun gear, the planet gear is in meshing transmission with the transmission teeth of the transmission part, and the rotating shaft of the planet gear is connected with the output shaft.
Optionally, in the flexible compensation type planetary gear reducer with the above structure, the housing structure is a cylindrical structure with two open ends; the transmission mechanism is arranged in the shell structure;
the locking and mounting mechanism comprises a first locking piece and a second locking piece; the first locking piece and the second locking piece are respectively arranged at two ends of the shell structure; the limiting mechanism is used for limiting the movement of the transmission mechanism along the axial direction.
Optionally, in the flexible compensation type planetary gear reducer with the above structure, an installation inner cavity with an opening is formed in the end surface of the output shaft on one side close to the input shaft, one end of the sun gear close to the output shaft extends into the installation inner cavity,
the mounting inner cavity is provided with a first mounting wall and a second mounting wall which are oppositely arranged along the axial direction of the output shaft; the rotation shaft of the planet wheel is mounted on the first mounting wall and the second mounting wall.
Optionally, the flexible compensation type planetary gear reducer with the above structure further includes:
a first bearing, an inner ring of which is mounted on an outer side of the input shaft, and an outer ring of which is mounted on an inner wall surface of the input housing;
a second bearing, an inner ring of which is mounted on an outer wall surface of the output shaft, and an outer ring of which is mounted on an inner wall surface of the mounting portion;
and an inner ring of the third bearing is mounted on the outer wall surface of the output shaft, and an outer ring of the third bearing is mounted on the inner wall surface of the output shell.
The technical scheme provided by the utility model, following advantage has:
the utility model provides a shell structure, include: inner ring connecting piece, input shell and output shell. The inner ring connecting piece comprises a mounting part and a transmission part; the mounting part is mounted between the input shell and the output shell along the axial direction, and the mounting part, the input shell and the output shell are detachably connected through locking pieces; the inner side wall surface of the transmission part is in transmission connection with the transmission mechanism, and the outer side wall surface of the transmission part is abutted against the inner wall surface of the output shell.
The shell structure of this structure can realize elastic deformation through transmission portion, and transmission portion takes place small deformation in transmission process to realize the closure through inner circle connecting piece and other shells, further guarantee that transmission portion is as ring gear and drive mechanism meshing transmission stability, further reduce the clearance that drive mechanism produced in the positive and negative process of changeing, further guarantee the improvement of precision, realize the unified requirement of precision in the product cycle.
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 embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a flexible compensation type planetary gear reducer provided by the present invention;
fig. 2 is a top view of an inner ring connecting member in the flexible compensation type planetary gear reducer provided by the present invention;
FIG. 3 is a longitudinal sectional view taken along A-A of FIG. 2;
description of reference numerals:
1-inner ring connecting piece; 11-a mounting portion; 111-mounting holes; 12-a transmission part; 121-gear teeth;
21-an input housing; 22-a connection housing; 23-an output housing; 24-a first locking member; 25-a second locking element;
31-sun gear; 32-planet wheels; 33-a rotating shaft;
41-input shaft; 42-an output shaft; 421-a first mounting wall; 422-a second mounting wall;
51-a first locking member; 52-a second locking member;
61-a first bearing; 62-a second bearing; 63-a third bearing;
71-a first oil seal; 72-second oil seal.
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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
The present embodiment provides a housing structure, as shown in fig. 1 to 3, including: inner race coupler 1, input housing 21, and output housing 23. The inner ring connecting piece 1 comprises a mounting part 11 and a transmission part 12; the mounting part 11 is mounted between the input housing 21 and the output housing 23 in the axial direction, and the mounting part 11, the input housing 21 and the output housing 23 are detachably connected by a locking member; the inner wall surface of the transmission part 12 is in transmission connection with the transmission mechanism, and the outer wall surface of the transmission part 12 is in contact with the inner wall surface of the output housing 23. Specifically, the transmission portion 12 is a flexible structure. The flexible structure ensures that the work is carried out under the state of generating elastic deformation, on one hand, the flexible structure bears bending stress, and on the other hand, the flexible structure can bear torsional stress in the process of tooth surface rotation; the flexible structure adopts structural steel with high bearing and high toughness, and simultaneously has the characteristic of high plasticity, thereby being convenient for spinning and control; in the tooth profile machining process, the heat treatment mode is modulated, and the hardening and tempering hardness is 280-310HBS, so that the transmission part is ensured to have the characteristics. The material of installation department 11 can select for use medium carbon alloy steel, and it is only to realize that the both sides of installation department are connected with input shell and output shell.
In the housing structure provided in this embodiment, the mounting portion 11 is a flange body, and the flange body is provided with a plurality of mounting holes 111, and the mounting holes 111 are suitable for the insertion of locking members to lock the input housing 21 and the output housing 23 with each other. The transmission part 12 has a transmission tooth 121 arranged on the inner side wall surface in a protruding manner in the radial direction, and the transmission tooth 121 is in meshing transmission with the planet wheel 32 of the transmission mechanism.
In this embodiment, a connecting shell 22 is further provided between the input shell 21 and the inner ring connecting piece 1; the locking members in the above structure include a first locking member 24 and a second locking member 25, the first locking member 24 being used to lock the input housing 21 and the connection housing 22; the second locking member 25 is used to lock the coupling housing 22, the inner ring coupling member 1 and the output housing 23. Specifically, the first locking member 24 and the second locking member 25 may each be a bolt. Of course, in other alternative embodiments, the locking member may be selected from other connecting structures, such as a snap, a weld, etc., to achieve a locking connection between the input housing 21, the inner ring connector 1, the connecting housing 22, and the output housing 23.
The shell structure provided by the embodiment can realize elastic deformation through the transmission part 12, the transmission part 12 generates small deformation in the transmission process, and locking is realized through the inner ring connecting piece 1 and other shells, so that the stability of meshing transmission of the transmission part 12 serving as a gear ring and a transmission mechanism is further ensured, the gap generated in the forward and reverse rotation process of the transmission mechanism is further reduced, the improvement of the precision is further ensured, and the requirement of uniform precision in a product period is realized.
Example 2
The present embodiment provides a flexible compensation type planetary gear reducer, as shown in fig. 1 to 3, including: the housing structure and the transmission mechanism in embodiment 1. The transmission mechanism is arranged in the shell structure and is in transmission connection with the shell structure; and both ends of the transmission mechanism are connected with the output shaft 42 and the input shaft 41, respectively.
In this embodiment, the transmission mechanism includes: sun gear 31 and planet gears 32. Wherein, the sun gear 31 is connected with the input shaft 41; the planet gears 32 are in meshing transmission with the outer wall surface of the sun gear 31, the planet gears 32 are in meshing transmission with the transmission teeth 121 of the transmission part 12, and the rotating shafts 33 of the planet gears 32 are connected with the output shaft 42.
The shell structure in the embodiment is a cylinder structure with two open ends; the transmission mechanism is arranged in the shell structure; the flexible compensation type planetary gear reducer in the embodiment further comprises a locking and mounting mechanism, wherein the locking and mounting mechanism comprises a first locking piece 51 and a second locking piece 52; the first locking member 51 and the second locking member 52 are respectively installed at both ends of the housing structure; the limiting device is used for limiting the movement of the transmission mechanism along the axial direction. Specifically, the first locking member 51 in the present embodiment is a locking sleeve supported on the input shaft 41, and the second locking member 52 in the present embodiment is a locking nut, and a locking end of the locking nut abuts on a third bearing 63 (mentioned below), so that the prevention of the axial shifting of the flexible compensation type planetary gear reducer is realized.
An output shaft 42 in this embodiment is provided with an open mounting inner cavity on an end surface of one side close to an input shaft 41, one end of the sun gear 31 close to the output shaft 42 extends into the mounting inner cavity, and the mounting inner cavity is provided with a first mounting wall 421 and a second mounting wall 422 which are oppositely arranged along the axial direction of the output shaft 42; the rotational shafts 33 of the planet wheels 32 are mounted on a first mounting wall 421 and a second mounting wall 422. Also included in this embodiment are a first bearing 61, a second bearing 62, and a third bearing 63 disposed within the housing structure. Wherein, the inner ring of the first bearing 61 is installed outside the input shaft 41, and the outer ring of the first bearing 61 is installed on the inner wall surface of the input housing 21; the inner ring of the second bearing 62 is mounted on the outer wall surface of the output shaft 42, and the outer ring of the second bearing 62 is mounted on the inner wall surface of the mounting portion 11; the inner race of the third bearing 63 is attached to the outer wall surface of the output shaft 42, and the outer race of the third bearing 63 is attached to the inner wall surface of the output housing 23.
In this embodiment, the input end and the output end of the flexible compensation type planetary gear reducer are further provided with a first oil seal 71 and a second oil seal 72, which play a role in sealing and plugging two ends of the flexible compensation type planetary gear reducer, so as to avoid leakage of lubricating oil. It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. A housing structure, comprising:
the inner ring connecting piece (1) comprises a mounting part (11) and a transmission part (12);
the mounting part (11), the input shell (21) and the output shell (23) are detachably connected through locking parts, and the mounting part (11), the input shell (21) and the output shell (23) are arranged between the input shell (21) and the output shell (23) along the axial direction;
the inner side wall surface of the transmission part (12) is in transmission connection with a transmission mechanism, and the outer side wall surface of the transmission part (12) is abutted against the inner wall surface of the output shell (23).
2. A housing arrangement according to claim 1, characterized in that the transmission part (12) is of a flexible construction.
3. The housing structure according to claim 1,
the installation department (11) are the flange body, be equipped with a plurality of mounting holes (111) on the flange body, mounting hole (111) are suitable for the locking piece penetrates in order to lock each other with input shell (21) and output shell (23).
4. The housing structure according to any one of claims 1 to 3,
the transmission part (12) is provided with transmission teeth (121) which are arranged on the inner side wall surface in a protruding mode along the radial direction, and the transmission teeth (121) are in meshed transmission with planet wheels (32) of the transmission mechanism.
5. A housing arrangement according to any one of claims 1-3, characterized in that a connecting housing (22) is further provided between the input housing (21) and the inner ring connection (1);
the locking elements comprise a first locking element (24) and a second locking element (25);
the first locking member (24) is used for locking the input shell (21) and the connecting shell (22);
the second locking element (25) is used to lock the connection housing (22), the inner ring connection element (1) and the output housing (23).
6. A flexible compensation type planetary gear speed reducer is characterized by comprising:
a housing structure according to any one of claims 1 to 5;
the transmission mechanism is arranged in the shell structure and is in transmission connection with the shell structure; and two ends of the transmission mechanism are respectively connected with the output shaft (42) and the input shaft (41).
7. The compliance compensated planetary gear reducer of claim 6, wherein the transmission comprises:
a sun gear (31) connected to the input shaft (41);
the planet gear (32), the planet gear (32) with the outer wall surface meshing transmission of sun gear (31), planet gear (32) with driving gear (121) meshing transmission of transmission portion (12), axis of rotation (33) and the output shaft (42) of planet gear (32) are connected.
8. The flexurally compensated planetary gear reducer of claim 6 or 7,
the shell structure is a cylinder structure with two open ends; the transmission mechanism is arranged in the shell structure;
the locking and mounting mechanism comprises a first locking piece (51) and a second locking piece (52); the first locking piece (51) and the second locking piece (52) are respectively arranged at two ends of the shell structure; the limiting mechanism is used for limiting the movement of the transmission mechanism along the axial direction.
9. The flexurally compensated planetary gear reducer of claim 7,
an installation inner cavity with an opening is arranged on the end face of one side of the output shaft (42) close to the input shaft (41), one end of the sun gear (31) close to the output shaft (42) extends into the installation inner cavity,
the mounting inner cavity is provided with a first mounting wall (421) and a second mounting wall (422) which are oppositely arranged along the axial direction of the output shaft (42); the rotational axis (33) of the planet wheel (32) is mounted on the first mounting wall (421) and the second mounting wall (422).
10. The flexurally compensated planetary gear reducer according to claim 6 or 7, further comprising:
a first bearing (61), an inner ring of the first bearing (61) being mounted on an outer side of the input shaft (41), and an outer ring of the first bearing (61) being mounted on an inner wall surface of the input housing (21);
a second bearing (62), an inner ring of the second bearing (62) being attached to an outer wall surface of the output shaft (42), and an outer ring of the second bearing (62) being attached to an inner wall surface of the mounting portion (11);
and a third bearing (63), wherein the inner ring of the third bearing (63) is mounted on the outer wall surface of the output shaft (42), and the outer ring of the third bearing (63) is mounted on the inner wall surface of the output housing (23).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022840966.XU CN214425075U (en) | 2020-11-30 | 2020-11-30 | Shell structure and flexible compensation type planetary gear speed reducer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022840966.XU CN214425075U (en) | 2020-11-30 | 2020-11-30 | Shell structure and flexible compensation type planetary gear speed reducer |
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| CN214425075U true CN214425075U (en) | 2021-10-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664544A (en) * | 2020-12-07 | 2021-04-16 | 河北汉光重工有限责任公司 | Rotating shaft structure with temperature compensation function |
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2020
- 2020-11-30 CN CN202022840966.XU patent/CN214425075U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664544A (en) * | 2020-12-07 | 2021-04-16 | 河北汉光重工有限责任公司 | Rotating shaft structure with temperature compensation function |
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