CN216951601U - Two curb plate integral welding planet carrier assemblies of AT - Google Patents
Two curb plate integral welding planet carrier assemblies of AT Download PDFInfo
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- CN216951601U CN216951601U CN202220432696.5U CN202220432696U CN216951601U CN 216951601 U CN216951601 U CN 216951601U CN 202220432696 U CN202220432696 U CN 202220432696U CN 216951601 U CN216951601 U CN 216951601U
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Abstract
The utility model provides an AT double-side-plate integral welded planet carrier assembly, which adopts a split planet carrier to form a first planet carrier part and a second planet carrier part, wherein corresponding support columns are arranged on the first planet carrier part and the second planet carrier part, and are connected by pins, so that a positioning reference can be provided for the welding process of the planet carrier, the complexity of tool design in the welding process of the planet carrier is reduced, two processes of planet shaft hole preprocessing and fine machining of the planet shaft hole after welding are combined into the machining process of the planet carrier after welding, the machining process of the planet shaft hole of the planet carrier is reduced, the production cost is reduced, and the risk that the coaxiality and the position degree machining precision cannot meet the design and installation requirements is effectively avoided; the welding tool design difficulty can be reduced, the machining procedures of the planet shaft holes are reduced, the coaxiality of the planet shaft holes and the machining difficulty of the position degree are reduced, and the production cost is reduced.
Description
Technical Field
The utility model relates to the field of transmission processing, in particular to an AT double-side-plate integral welded planet carrier assembly.
Background
Along with the continuous development and progress of AT hydraulic automatic transmission technology and the outstanding advantages that the AT hydraulic automatic transmission has small impact in the gear shifting process, stable gear shifting, strong power transmission capability, long service life and excellent performance in severe environment, the AT hydraulic automatic transmission is more and more widely applied in the fields of commercial vehicles and passenger vehicles and has huge market application prospect. The planet carrier serving as a main component part in the planetary gear mechanism is one of the most stressed parts, has higher requirements on design precision and transmission load, and has great influence on the load among the planet wheels arranged on the planet carrier and the bearing capacity, vibration, power and the like of the whole transmission device. At present, the common structural forms of the planet carrier are three types: double-sided board integral type, double-sided board split type and single-sided board type.
The double-side-plate integral planet carrier is a space frame structure formed by connecting two annular side plates and support columns uniformly distributed between the two annular side plates, has good rigidity and strength, and can ensure high machining position precision of a planet shaft hole. However, if the planet carrier with such a structure is produced and manufactured by adopting an integral forging method, a large amount of processing is generated, and unnecessary production cost is increased. Therefore, the final planet carrier with the integral structure can be obtained by adopting methods of split forging, welding and the like, the blank size of the planet carrier is close to the actual size of the planet carrier to a great extent, meanwhile, the machining of the inner part of the planet carrier is more convenient, the machining amount is effectively reduced, and the production cost is reduced. On the other hand, the planet carrier obtained by the method can be used for pre-machining a planet shaft hole on the annular side plate of the split forging blank, so that the coaxiality and the position degree of the planet shaft hole are greatly influenced, and the machining difficulty and the production cost are obviously increased.
SUMMERY OF THE UTILITY MODEL
Aiming AT the problems in the prior art, the utility model provides an AT double-side-plate integral type welded planet carrier assembly; simple structure, the equipment processing is convenient, can reduce the cost of manufacture, improves machining efficiency.
The utility model is realized by the following technical scheme:
an AT double-side-plate integral welded planet carrier assembly is characterized by comprising a planet carrier first part and a planet carrier second part;
one side of the first part of the planet carrier is fixedly connected with the sun gear, and the other side of the first part of the planet carrier is fixedly connected with the second part of the planet carrier;
a plurality of support columns are arranged on the sides, close to the first part and the second part of the planet carrier, of the first part and the second part of the planet carrier in a one-to-one corresponding mode;
the supporting columns are provided with column pin holes;
the pin holes of the correspondingly arranged support columns are fixedly connected through pins.
Furthermore, the number of the supporting columns of the first part and the second part of the planet carrier is three.
Furthermore, the first part and the second part of the planet carrier are both provided with two-pole planet shaft holes.
Furthermore, the two-pole planet shaft holes of the first part and the second part of the planet carrier are correspondingly arranged.
Furthermore, the number of the planet shaft holes of the two poles of the planet carrier first part and the planet carrier second part is six.
Further, the pin holes and the pins are of circular structures.
Further, the side wall of the second part of the planet carrier is provided with a spline.
Further, the sun gear, the first planet carrier portion and the second planet carrier portion are coaxially arranged.
Compared with the prior art, the utility model has the following beneficial technical effects:
the utility model provides an AT double-side-plate integral welded planet carrier assembly, which adopts a split planet carrier to form a first planet carrier part and a second planet carrier part, wherein corresponding support columns are arranged on the first planet carrier part and the second planet carrier part, and are connected by pins, so that a positioning reference can be provided for the welding process of the planet carrier, the complexity of tool design in the welding process of the planet carrier is reduced, two processes of planet shaft hole preprocessing and fine machining of the planet shaft hole after welding are combined into the machining process of the planet carrier after welding, the machining process of the planet shaft hole of the planet carrier is reduced, the production cost is reduced, and the risk that the coaxiality and the position degree machining precision cannot meet the design and installation requirements is effectively avoided; the welding tool design difficulty can be reduced, the machining procedures of the planet shaft holes are reduced, the coaxiality of the planet shaft holes and the machining difficulty of the position degree are reduced, and the production cost is reduced.
Drawings
FIG. 1 is a schematic structural view of an AT double-side-plate integrally welded planet carrier assembly according to the present invention;
FIG. 2 is an exploded view of an AT double-side-plate integral welded planet carrier assembly structure according to the present invention;
FIG. 3 is a sectional view of the AT double-side-plate integral welded planet carrier assembly structure of the present invention.
In the figure: the planet carrier comprises a sun wheel 1, a planet carrier first part 2, a planet carrier second part 3, a pin 4, a support column 5, a pin hole 50 and two-pole planet shaft holes 6.
Detailed Description
The present invention will now be described in further detail with reference to the attached drawings, which are illustrative, but not limiting, of the present invention.
In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, article, or apparatus.
The utility model provides an AT double-side-plate integral welded planet carrier assembly, which comprises a planet carrier first part 2 and a planet carrier second part 3, as shown in figures 1, 2 and 3;
one side of the first part 2 of the planet carrier is fixedly connected with the sun gear 1, and the other side of the first part is fixedly connected with the second part 3 of the planet carrier;
a plurality of corresponding supporting columns 5 are arranged on the sides close to the first planet carrier part 2 and the second planet carrier part 3;
the support columns 5 are provided with column pin holes 50;
the pin holes 50 of the correspondingly arranged support columns 5 are fixedly connected through pins 4.
In a preferred embodiment of the present invention, the number of the struts 5 of the first planet carrier part 2 and the second planet carrier part 3 is three, specifically, the support columns 5 are used for supporting and connecting the planet carrier first part 2 and the planet carrier second part 3, not only can provide positioning reference for the welding process of the planet carrier first part 2 and the planet carrier second part 3, reduce the complexity of tool design, meanwhile, the two processes of preprocessing the planet shaft holes of the first planet carrier part 2 and the second planet carrier part 3 before welding and finish machining the planet shaft holes after welding can be combined into the machining process of the planet carrier after welding the planet carrier, the machining process of the planet carrier shaft holes is reduced, the production cost is reduced, and the risk that the coaxiality and the position degree machining precision of the planet shaft holes of the first planet carrier part 2 and the second planet carrier part 3 cannot meet the design and installation requirements is effectively avoided.
In another preferred embodiment provided by the utility model, the planet carrier first part 2 and the planet carrier second part 3 are both provided with two-pole planet shaft holes 6; furthermore, the planet carrier first part 2 and the planet carrier second part 3 are provided with two-pole planet shaft holes 6 correspondingly; specifically, the number of the two-pole planet shaft holes 6 of the planet carrier first part 2 and the planet carrier second part 3 is six.
Another preferred embodiment provided by the present invention is that the pin holes 50 and the pins 4 both adopt a circular structure; specifically, cylindrical pin holes 50 are machined through pillar welding surface machining at three positions of the planet carrier first part 2 and the planet carrier second part 3, assembly of the planet carrier first part 2 and the planet carrier second part 3 of workers at an assembly site is greatly facilitated, and the planet carrier assembly time at the assembly site is saved. Through adopting the pin 4 outer embedded with the planet carrier first portion 2 and the design scheme of the 3 bracing piece 5 weld face stair structure of planet carrier second portion, not only can effectively reduce the possibility that quality problems such as 5 weld face weld defects of planet carrier bracing piece appear, also for the engineer observes planet carrier in the planet carrier welding process planet carrier bracing piece weld face weld permeability and welding seam shape etc. and facilitates.
Another preferred embodiment of the present invention is that the side wall of the second planet carrier part 3 is provided with splines.
Another preferred embodiment of the present invention provides that the sun gear 1, the first planet carrier part 2 and the second planet carrier part 3 are coaxially arranged.
When the welding device is used, in order to ensure that the coaxiality and the position degree of the planetary shaft holes of the first part 2 and the second part 3 of the planetary carrier meet the requirements of design and installation, reduce the quality problem of welding seams of welding surfaces of the support columns 5 and eliminate the influence of the size change of key parts of parts on part assembly in the welding process, the welding device is divided into three parts, namely machining before welding the welding planetary carrier assembly, welding the planetary carrier assembly and machining after welding. Firstly, machining a sun wheel 1, a planet carrier first part 2 and a planet carrier second part 3 before welding a planet carrier assembly; secondly, mounting a pin 4 in any two pin holes 50 of the second planet carrier part 3, mounting the first planet carrier part 2 and the second planet carrier part 3 into a whole through the pin 4, and pressing a sun gear 1 to the first planet carrier part 2 to complete the assembly before welding the planet carrier assembly; secondly, completing a welding procedure of correspondingly welding the position of the planet carrier assembly according to design requirements; and finally, machining a planet shaft hole and a key part machine which is influenced by welding and has larger size change on the welded planet carrier assembly after welding. And then the whole machining, assembling and welding processes of the welded planet carrier assembly are finished.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. An AT double-side-plate integral welded planet carrier assembly is characterized by comprising a planet carrier first part (2) and a planet carrier second part (3);
one side of the first part (2) of the planet carrier is fixedly connected with the sun gear (1), and the other side of the first part of the planet carrier is fixedly connected with the second part (3) of the planet carrier;
a plurality of support columns (5) are arranged on the sides, close to the planet carrier first part (2) and the planet carrier second part (3), of the planet carrier, and the support columns (5) of the planet carrier first part (2) and the planet carrier second part (3) are arranged in a one-to-one correspondence mode;
the support columns (5) are provided with column pin holes (50);
the pin holes (50) of the correspondingly arranged support columns (5) are fixedly connected through pins (4).
2. The AT double-side-plate integral welded planet carrier assembly according to claim 1, wherein the number of the struts (5) of the first planet carrier part (2) and the second planet carrier part (3) is three.
3. The AT double side plate integrally welded planet carrier assembly according to claim 1, wherein the planet carrier first part (2) and the planet carrier second part (3) are provided with two-pole planet shaft holes (6).
4. The AT double-side-plate integrally welded planet carrier assembly according to claim 3, wherein the two-pole planet shaft hole (6) of the planet carrier first part (2) and the planet carrier second part (3) are correspondingly arranged.
5. The AT double side plate integral welded planet carrier assembly according to claim 3, wherein the number of the two-pole planet shaft holes (6) of the planet carrier first part (2) and the planet carrier second part (3) is six.
6. The AT double-side-plate integral welded planet carrier assembly according to claim 1, wherein the pin holes (50) and the pins (4) are of a circular structure.
7. The AT double-side-plate integrally welded planet carrier assembly according to claim 1, wherein the planet carrier second portion (3) side wall is provided with splines.
8. The AT double-side-plate integral welded planet carrier assembly according to claim 1, characterized in that the sun wheel (1), the planet carrier first portion (2) and the planet carrier second portion (3) are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220432696.5U CN216951601U (en) | 2022-02-28 | 2022-02-28 | Two curb plate integral welding planet carrier assemblies of AT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220432696.5U CN216951601U (en) | 2022-02-28 | 2022-02-28 | Two curb plate integral welding planet carrier assemblies of AT |
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| CN216951601U true CN216951601U (en) | 2022-07-12 |
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| CN202220432696.5U Active CN216951601U (en) | 2022-02-28 | 2022-02-28 | Two curb plate integral welding planet carrier assemblies of AT |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115351517A (en) * | 2022-10-19 | 2022-11-18 | 盛瑞传动股份有限公司 | Machining process for transmission planet carrier assembly |
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2022
- 2022-02-28 CN CN202220432696.5U patent/CN216951601U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115351517A (en) * | 2022-10-19 | 2022-11-18 | 盛瑞传动股份有限公司 | Machining process for transmission planet carrier assembly |
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