CN222702507U - Inner and outer shaft combined composite structure with small rotation inertia - Google Patents
Inner and outer shaft combined composite structure with small rotation inertia Download PDFInfo
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- CN222702507U CN222702507U CN202420868944.XU CN202420868944U CN222702507U CN 222702507 U CN222702507 U CN 222702507U CN 202420868944 U CN202420868944 U CN 202420868944U CN 222702507 U CN222702507 U CN 222702507U
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Abstract
本实用新型提供一种转动惯性小的内外轴组合复合结构，包括：外轴、左内轴、左内外传动机构以及右内外传动机构，外轴左右两端内侧面均设有用于安装左内外传动机构及右内外传动机构的内环槽，与现有技术相比，本实用新型具有如下的有益效果：通过增加外轴、左内轴、右内轴、左内外传动机构及右内外传动机构，外轴左右两侧面开设的内环槽内侧分别安装一组左内外传动机构及右内外传动机构，使外轴左右两端分别与左内轴及右内轴传动连接，使外轴在转动的同时带动左内轴及右内轴转动，左内轴及右内轴其外径远小于外轴内径，降低了组合后的整体质量，能够降低惯性，通过增加外轴、左内外传动机构及右内外传动机构，能够便于拆装。
The utility model provides an inner-outer shaft combined composite structure with small rotational inertia, comprising: an outer shaft, a left inner shaft, a left inner-outer shaft transmission mechanism and a right inner-outer shaft transmission mechanism, inner side surfaces at both left and right ends of the outer shaft are provided with inner ring grooves for installing the left inner-outer shaft transmission mechanism and the right inner-outer shaft transmission mechanism, and compared with the prior art, the utility model has the following beneficial effects: by adding the outer shaft, the left inner shaft, the right inner shaft, the left inner-outer shaft transmission mechanism and the right inner-outer shaft transmission mechanism, a group of left inner-outer shaft transmission mechanism and the right inner-outer shaft transmission mechanism are respectively installed on the inner sides of the inner ring grooves provided on the left and right sides of the outer shaft, so that the left and right ends of the outer shaft are respectively connected with the left inner shaft and the right inner shaft for transmission, so that the outer shaft drives the left inner shaft and the right inner shaft to rotate while rotating, the outer diameters of the left inner shaft and the right inner shaft are much smaller than the inner diameter of the outer shaft, so that the overall mass after the combination is reduced, and the inertia can be reduced, and by adding the outer shaft, the left inner-outer shaft transmission mechanism and the right inner-outer shaft transmission mechanism, it can be easy to disassemble and assemble.
Description
Technical Field
The utility model belongs to the technical field of inner and outer shaft combined composite structures, and particularly relates to an inner and outer shaft combined composite structure with small rotation inertia.
Background
The combined composite structure of the inner shaft and the outer shaft generally refers to a complex mechanical transmission or supporting structure formed by nesting and matching the inner shaft and the outer shaft with each other and through a specific connection mode. Such structures are found in many mechanical devices and engineering applications, such as gearboxes, bearing blocks, drive shafts, couplings, pump bodies, and the like. However, most of the common inner shaft and the outer shaft of the inner and outer shaft combined composite structure are connected through interference fit, the outer diameter of the inner shaft and the inner diameter of the outer shaft are matched with each other to realize the transmission of the inner shaft and the outer shaft, the mass of the inner shaft and the outer shaft is larger after the inner shaft and the outer shaft are combined, the mass determines the inertia of the inner shaft and the outer shaft in the rotating process, and the larger the mass is, the larger the inertia is, so that the common inner shaft and outer shaft combined composite structure has larger inertia, and needs larger torque for rotating and stopping control and starting control of the combined composite structure, so that relatively more energy is consumed, certain energy consumption is increased, the long-term production and operation of enterprises are disadvantageous, and the market competitiveness of the enterprises is reduced on the basis of cost increase.
And secondly, the large inertia of the inner and outer shaft combined composite structure can be difficult to quickly brake the rotating mechanism when equipment fails, so that a certain danger can be generated.
In view of the above, the large inertia of the combined inner and outer shaft structure has some problems in practical use, so it is desirable to provide a new structure for solving the above-mentioned problems.
Disclosure of utility model
Aiming at the defects existing in the prior art, the utility model aims to provide an inner and outer shaft combined composite structure with small rotation inertia, and solves the problems in the prior art.
The utility model is realized by the following technical scheme that the inner and outer shaft combined composite structure with small rotation inertia comprises an outer shaft, a left inner and outer transmission mechanism and a right inner and outer transmission mechanism, wherein inner side surfaces of the left end and the right end of the outer shaft are respectively provided with an inner ring groove for installing the left inner and outer transmission mechanism and the right inner and outer transmission mechanism, one end, close to the center of the outer shaft, of the inner side of the inner ring groove at the left end is provided with the left inner and outer transmission mechanism for transmitting the rotation of the outer shaft to the left inner shaft, one end, close to the center of the outer shaft, of the inner side of the inner ring groove at the left end and the right end is provided with a protection plug for reducing dust entering, the inner side of the protection plug at the left end is provided with the left inner shaft, and the inner side of the protection plug at the right end is provided with the right inner shaft.
As a preferable implementation mode, a first bearing is arranged between the left inner and outer transmission mechanism and the left end protection block, and between the right inner and outer transmission mechanism and the right end protection block, and a second bearing is arranged at the right end of the outer side of the left inner shaft and the left end of the outer side of the right inner shaft.
As a preferred embodiment, a left external gear is arranged outside the left internal and external transmission mechanism, a left internal gear is arranged inside the left external gear, and the left internal shaft passes through the center of the left internal gear.
As a preferable implementation mode, the outer side of the right internal and external transmission mechanism is provided with a right external gear, the inner side of the right external gear is provided with a right internal gear, the right internal shaft penetrates through the center of the right internal gear, and the left end and the right end of the outer shaft are respectively connected with the left internal shaft and the right internal shaft in a transmission way, so that the outer shaft drives the left internal shaft and the right internal shaft to rotate while rotating, the outer diameters of the left internal shaft and the right internal shaft are far smaller than the inner diameter of the outer shaft, the overall quality of the combined inner shaft is reduced, and the inertia can be reduced.
As a preferred embodiment, the inner side surface of the left external gear is provided with left internal teeth, and the left internal teeth are meshed with the left internal gear;
The inner side of the right external gear is provided with right internal teeth, the right internal teeth are meshed with the right internal gear, the number of teeth of the left external gear is different from that of the right external gear, and the number of teeth of the left internal gear is different from that of the right internal gear.
As a preferred embodiment, the side surface of one end of the inner ring groove, which is close to the center of the outer shaft, is provided with five groups of connecting threaded holes I which are equally distributed in circumference, and the side surface of one end of the left external gear and the right external gear, which is far from the center of the outer shaft, is provided with connecting threaded holes II.
As a preferred embodiment of the present invention, the left external gear and the right external gear one end of the external gear far away from the center of the outer shaft a hidden groove is formed in the concentric position of the side surface and the second connecting threaded hole;
The left external gear, the right external gear and the outer shaft are connected and fixed through the inner hexagon bolts by screwing in the first connecting threaded hole and the second connecting threaded hole, and the left external gear, the right external gear and the outer shaft are connected and fixed through the inner hexagon bolts, so that the left external gear, the right external gear and the outer shaft can be conveniently disassembled and assembled.
After the technical scheme is adopted, the utility model has the beneficial effects that the outer shaft, the left inner shaft, the right inner shaft, the left inner and outer transmission mechanisms and the right inner and outer transmission mechanisms are additionally arranged, a group of left inner and outer transmission mechanisms and right inner and outer transmission mechanisms are respectively arranged at the inner sides of inner ring grooves formed in the left side surface and the right side surface of the outer shaft, so that the left end and the right end of the outer shaft are respectively connected with the left inner shaft and the right inner shaft in a transmission way, the outer shaft drives the left inner shaft and the right inner shaft to rotate while rotating, the outer diameters of the left inner shaft and the right inner shaft are far smaller than the inner diameter of the outer shaft, the combined overall mass is reduced, the inertia is reduced, and the outer shaft, the left inner and outer transmission mechanisms and the right inner and outer transmission mechanisms are conveniently disassembled by adding.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of an inner and outer shaft combined composite structure with small rotational inertia according to the present utility model.
Fig. 2 is a schematic view of the structure of the combined inner and outer shafts with small rotational inertia without the outer shaft according to the present utility model.
Fig. 3 is a schematic structural view of an outer shaft in a combined inner and outer shaft composite structure with small rotational inertia according to the present utility model.
Fig. 4 is a schematic diagram of a partial structure of a left internal and external transmission mechanism in a combined structure of an internal and external shaft with small rotation inertia.
Fig. 5 is a schematic diagram of a partial structure of a right inner and outer transmission mechanism in an inner and outer shaft combined composite structure with small rotation inertia.
Fig. 6 is a schematic structural view of a left external gear in the combined composite structure of the inner and outer shafts with small rotation inertia.
Fig. 7 is a schematic structural view of a right external gear in a combined composite structure of an inner shaft and an outer shaft with small rotation inertia.
In the figure, the outer shaft is 100-the inner ring groove of the outer shaft is 101, and the threaded hole I is 102-connected;
200-left inner shaft;
300-right inner shaft;
400-a left internal and external transmission mechanism, 401-a left external gear and 402-a left internal gear;
500-right inner and outer disassembly transmission mechanisms, 501-right external gears and 502-right internal gears;
600-dustproof blocking;
401 a-left internal teeth, 401 b-connecting threaded holes II, 401 c-hiding grooves;
501 a-right internal teeth.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 7, the present utility model provides a combined structure of inner and outer shafts with small rotational inertia, comprising an outer shaft 100, a left inner shaft 200, a left inner and outer transmission mechanism 400 and a right inner and outer transmission mechanism 500, wherein inner ring grooves 101 for installing the left inner and outer transmission mechanism 400 and the right inner and outer transmission mechanism 500 are respectively arranged on inner side surfaces of left and right ends of the outer shaft 100;
A left inner and outer transmission mechanism 400 for transmitting the rotation of the outer shaft 100 to the left inner shaft 200 is arranged at one end, close to the center of the outer shaft 100, of the inner annular groove 101 at the left end, and a right inner and outer transmission mechanism 500 for transmitting the rotation of the outer shaft 100 to the right inner shaft 300 is arranged at one end, close to the center of the outer shaft 100, of the inner annular groove 101 at the right end;
The inner sides of the inner ring grooves 101 at the left end and the right end are respectively provided with a protective plug 600 for reducing dust entering at one end far away from the center of the outer shaft 100, the inner side of the protective plug 600 at the left end is provided with a left inner shaft 200, and the inner side of the protective plug 600 at the right end is provided with a right inner shaft 300.
Bearing I is arranged between the left inner and outer transmission mechanism 400 and the left end protection block 600, and between the right inner and outer transmission mechanism 500 and the right end protection block 600, and bearing II is arranged at the right end outside the left inner shaft 200 and the left end outside the right inner shaft 300.
The left external gear 401 is arranged on the outer side of the left internal and external transmission mechanism 400, the left internal gear 402 is arranged on the inner side of the left external gear 401, and the left inner shaft 200 passes through the center of the left internal gear 402.
The right external gear 501 is arranged on the outer side of the right internal and external transmission mechanism 500, the right internal gear 502 is arranged on the inner side of the right external gear 501, the right inner shaft 300 penetrates through the center of the right internal gear 502, and the left end and the right end of the outer shaft 100 are respectively connected with the left inner shaft 200 and the right inner shaft 300 in a transmission way, so that the outer shaft 100 drives the left inner shaft 200 and the right inner shaft 300 to rotate while rotating, the outer diameters of the left inner shaft 200 and the right inner shaft 300 are far smaller than the inner diameter of the outer shaft 100, the combined whole mass is reduced, and inertia can be reduced.
Referring to fig. 1 to 5, as a first embodiment of the present utility model, a user installs a set of left and right inner and outer transmission mechanisms 400 and 500 inside an inner ring groove 101 formed on each of left and right sides of an outer shaft 100, respectively, so that left and right ends of the outer shaft 100 are respectively connected with a left inner shaft 200 and a right inner shaft 300 in a transmission manner, and secondly, the outer shaft 100 can rotate while driving the left inner shaft 200 and the right inner shaft 300, and outer diameters of the left inner shaft 200 and the right inner shaft 300 are far smaller than inner diameters of the outer shaft 100, thereby reducing overall mass after combination, and further reducing inertia.
The inner side surface of the left external gear 401 is provided with left internal teeth 401a, and the left internal teeth 401a are meshed with the left internal gear 402;
The right external gear 501 has a right internal gear 501a on the inner side surface thereof, the right internal gear 501a and the right internal gear 502 are engaged with each other, the number of teeth of the left external gear 401 and the right external gear 501 are different, and the number of teeth of the left internal gear 402 and the right internal gear 502 are different.
Referring to fig. 1 to 7, as a second embodiment of the present utility model, based on the first embodiment, the inner side surface of the left external gear 401 is provided with the left internal gear 401a, the inner side surface of the right external gear 501 is provided with the right internal gear 501a, the left internal shaft 200 and the right internal shaft 300 are respectively connected through the left internal and external rotation mechanism 400 and the right internal and external transmission mechanism 500, and the numbers of teeth of the left external gear 401 and the right external gear 501 are different, and the numbers of teeth of the left internal gear 402 and the right internal gear 502 are different, so that the rotation speeds transmitted to the left internal shaft 200 and the right internal shaft 300 by the outer shaft 10 are different, thereby achieving the effect of differential rotation.
Five groups of connecting threaded holes 102 which are equally distributed in circumference are formed in the side surface of one end, close to the center of the outer shaft 100, of the inner ring groove 101, and connecting threaded holes 401b are formed in the side surface of one end, far away from the center of the outer shaft 100, of the left external gear 401 and the right external gear 501.
A hidden groove 401c is formed in the side surface of one end, far away from the center of the outer shaft 100, of the left external gear 401 and the right external gear 501 and is concentric with the second connecting threaded hole 401 b;
The left external gear 401, the right external gear 501 and the outer shaft 100 are connected and fixed by screwing the inner hexagon bolts into the inner sides of the first connecting threaded hole 102 and the second connecting threaded hole 401b, and the left external gear 401 and the right external gear 501 are connected and fixed by the inner hexagon bolts, so that the left external gear and the right external gear 501 can be conveniently disassembled.
Referring to fig. 1 to 7, as a third embodiment of the present utility model, firstly, a user inserts the left external gear 401 and the right external gear 501 into the inner ring grooves 101 formed at the left and right ends of the outer shaft 100, respectively, and secondly, the user screws the inner hexagon bolts into the first connecting screw holes 102 and the second connecting screw holes 401b to connect and fix the left external gear 401 and the right external gear 501 with the outer shaft 100, respectively, so that the left external gear 401 and the right external gear 500 are in a detachable structure with the outer shaft 100, thereby being convenient for the actual requirement to detach and replace the left internal and external transmission mechanism 400 and the right internal and external transmission mechanism 500.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (7)
1. The inner and outer shaft combined composite structure with small rotation inertia comprises an outer shaft (100), a left inner shaft (200), a left inner and outer transmission mechanism (400) and a right inner and outer transmission mechanism (500), and is characterized in that inner ring grooves (101) for installing the left inner and outer transmission mechanism (400) and the right inner and outer transmission mechanism (500) are formed in the inner side surfaces of the left end and the right end of the outer shaft (100);
A left inner and outer transmission mechanism (400) for transmitting the rotation of the outer shaft (100) to the left inner shaft (200) is arranged at one end, close to the center of the outer shaft (100), of the inner side of the inner annular groove (101) at the left end, and a right inner and outer transmission mechanism (500) for transmitting the rotation of the outer shaft (100) to the right inner shaft (300) is arranged at one end, close to the center of the outer shaft (100), of the inner annular groove (101) at the right end;
The left end and the right end the inner side of the inner ring groove (101) is far away from the central end of the outer shaft (100) and is provided with a protection plug (600) for reducing dust entering, the left end the inner side of the protection plug (600) is provided with a left inner shaft (200), and the right end the inner side of the protection plug (600) is provided with a right inner shaft (300).
2. The combined structure of an inner shaft and an outer shaft with small rotation inertia according to claim 1, wherein bearings I are arranged between the left inner and outer transmission mechanism (400) and the left end protection block (600) and between the right inner and outer transmission mechanism (500) and the right end protection block (600), and bearings II are arranged at the right end outside the left inner shaft (200) and the left end outside the right inner shaft (300).
3. The combined structure of an inner shaft and an outer shaft with small rotation inertia according to claim 2, wherein a left external gear (401) is arranged on the outer side of the left internal and external transmission mechanism (400), a left internal gear (402) is arranged on the inner side of the left external gear (401), and the left internal shaft (200) passes through the center of the left internal gear (402).
4. The combined structure of inner and outer shafts with small rotation inertia according to claim 3, wherein a right external gear (501) is arranged at the outer side of the right internal and outer transmission mechanism (500), a right internal gear (502) is arranged at the inner side of the right external gear (501), and the right inner shaft (300) passes through the center of the right internal gear (502).
5. The combined structure of an inner shaft and an outer shaft with small rotation inertia according to claim 4, wherein the inner side surface of the left external gear (401) is provided with left internal teeth (401 a), and the left internal teeth (401 a) are meshed with the left internal gear (402);
The inner side surface of the right external gear (501) is provided with right internal teeth (501 a), the right internal teeth (501 a) are meshed with the right internal gear (502), the number of teeth of the left external gear (401) is different from that of the right external gear (501), and the number of teeth of the left internal gear (402) is different from that of the right internal gear (502).
6. The combined structure of an inner shaft and an outer shaft with small rotation inertia according to claim 3, wherein the side surface of one end of the inner ring groove (101) close to the center of the outer shaft (100) is provided with five groups of connecting threaded holes I (102) which are distributed in a circumference equally-divided mode, and the side surfaces of one end of the left external gear (401) and the right external gear (501) far from the center of the outer shaft (100) are provided with connecting threaded holes II (401 b).
7. The combined structure of an inner shaft and an outer shaft with small rotation inertia according to claim 6, wherein a hidden groove (401 c) is formed at the concentric position of the side surface of one end of the left external gear (401) and the right external gear (501) far away from the center of the outer shaft (100) and the connecting threaded hole II (401 b);
The left external gear (401), the right external gear (501) and the outer shaft (100) are connected and fixed by screwing the inner hexagon bolts into the inner sides of the first connecting threaded hole (102) and the second connecting threaded hole (401 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420868944.XU CN222702507U (en) | 2024-04-25 | 2024-04-25 | Inner and outer shaft combined composite structure with small rotation inertia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420868944.XU CN222702507U (en) | 2024-04-25 | 2024-04-25 | Inner and outer shaft combined composite structure with small rotation inertia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222702507U true CN222702507U (en) | 2025-04-01 |
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ID=95140866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420868944.XU Active CN222702507U (en) | 2024-04-25 | 2024-04-25 | Inner and outer shaft combined composite structure with small rotation inertia |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222702507U (en) |
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2024
- 2024-04-25 CN CN202420868944.XU patent/CN222702507U/en active Active
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