CN214698988U - Novel special compound balance sheet for aluminum alloy transmission shaft - Google Patents
Novel special compound balance sheet for aluminum alloy transmission shaft Download PDFInfo
- Publication number
- CN214698988U CN214698988U CN202121037059.XU CN202121037059U CN214698988U CN 214698988 U CN214698988 U CN 214698988U CN 202121037059 U CN202121037059 U CN 202121037059U CN 214698988 U CN214698988 U CN 214698988U
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- aluminum alloy
- transmission shaft
- balance sheet
- steel
- balance
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Abstract
The utility model provides a novel special compound balance piece of aluminum alloy transmission shaft, combine to form by steel balance piece and aluminum alloy rivet. The steel balance sheet body is arc-shaped, the radius of the inner wall of the steel balance sheet body is the same as the radius of the outer circle of the shaft tube of the aluminum alloy transmission shaft, the number of the steel balance sheet connecting holes is 2-4, the diameter of each connecting hole is 1.5-3 times of the thickness of the steel balance sheet, the chamfering angle of each connecting hole is 90 degrees or 120 degrees, and the chamfering depth is 1-2 mm. The aluminum alloy rivet is in a countersunk head shape and is embedded in the connecting hole of the steel balance sheet. Adopt resistance welding to weld this balance piece and aluminum alloy central siphon together, aluminum alloy rivet bottom links to each other with the aluminum alloy central siphon, and the top presses on the steel balance piece, ensures that balance piece and aluminum alloy central siphon are connected reliably.
Description
Technical Field
The utility model relates to a commercial car aluminum alloy automobile transmission shaft field, more specifically provides a novel special compound balance piece of aluminum alloy transmission shaft.
Background
With the increasing requirements of the national environmental protection and the fuel economy of automobiles by customers, more and more commercial vehicle manufacturers begin to adopt aluminum alloy transmission shaft assemblies to replace steel transmission shaft assemblies. The transmission shaft assembly is an assembly body rotating at a high speed, certain requirements are placed on the dynamic balance precision of the assembly, the transmission shaft has larger initial unbalance amount due to deviation of part forging, processing and assembling and deformation of welding, and therefore the transmission shaft needs to be subjected to dynamic balance correction before leaving a factory, and the residual unbalance amount of the transmission shaft is reduced by welding balance pieces.
The novel aluminum alloy transmission shaft assembly structure is formed by welding an aluminum alloy shaft tube and parts at two ends in the middle, and other assembling parts are steel parts. The counterweights are typically welded to the ends of the central shaft tube or other components of the sliding spline pair. For the same counterweight mass, if the balance block is made of an aluminum alloy material to manufacture the balance sheet, the balance sheet has large volume, influences the beauty and has high cost; if a steel balance sheet is adopted, the connection problem of steel and aluminum must be solved. If the aluminum alloy shaft tube and the steel balance sheet are connected together by argon arc welding spot welding, the requirements on the appearance cleanliness and the welding environment of the welded part are high, and the welding quality control of batch production is difficult.
SUMMERY OF THE UTILITY MODEL
The utility model provides a connect reliably, but batch production's special compound balance piece of novel aluminum alloy transmission shaft has both solved the amazing problem of the balanced lamellar body of aluminum alloy, has solved argon arc again and has welded shortcomings such as unstable welding quality, and the authenticity of transmission shaft dynamic balance data is guaranteed to the balanced piece of while on-line welding.
According to the utility model discloses an aspect provides a novel special compound balance piece of aluminum alloy transmission shaft, including the aluminum alloy rivet that is the annular steel balance piece of circle and countersunk head structure, be provided with 2 at least connecting holes on the steel balance piece, the aluminum alloy rivet is inlayed in the connecting hole.
On the basis of the scheme, the inner circular surface of the steel balance sheet is preferably matched with the shaft tube of the aluminum alloy transmission shaft and is welded on the surface of the shaft tube of the aluminum alloy transmission shaft through resistance welding.
On the basis of the scheme, preferably, the number of the connecting holes is two or four, and the connecting holes are uniformly distributed on the surface of the steel balance sheet at intervals.
On the basis of the scheme, the connecting hole is preferably provided with a chamfer of 90 degrees or 120 degrees, and the depth of the chamfer is 1-2 mm.
On the basis of the scheme, the diameter of the connecting hole is preferably 1.5-3 times of the thickness of the steel balance sheet, and the strength of the riveting balance block through resistance welding is effectively guaranteed.
The utility model provides a novel special compound balance piece of aluminum alloy transmission shaft forms by steel balance piece and aluminum alloy rivet combination. The steel balance sheet body is arc-shaped, the radius of the inner wall of the steel balance sheet body is the same as the radius of the outer circle of the shaft tube of the aluminum alloy transmission shaft, the number of the connecting holes in the steel balance sheet is 2 or 4, the diameter of each connecting hole is 1.5-3 times of the thickness of the steel balance sheet, the chamfering angle of each connecting hole is 90 degrees or 120 degrees, and the chamfering depth is 1-2 mm. The aluminum alloy rivet is in a countersunk head shape and is embedded in the connecting hole of the steel balance sheet. The composite balance sheet is welded with the aluminum alloy shaft tube by resistance welding, the bottom of the aluminum alloy rivet is connected with the aluminum alloy shaft tube, and the top of the aluminum alloy rivet is pressed on the steel balance sheet, so that the balance sheet is reliably connected with the aluminum alloy shaft tube.
Drawings
FIG. 1 is a schematic view of the structure of the balance plate of the present invention
FIG. 2 is a schematic view of the welding state of the balance pieces of the present invention
Fig. 3 is a schematic view of the composite balance sheet of the present invention applied to an aluminum alloy transmission shaft assembly.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Please refer to fig. 1, the utility model discloses a special compound balance piece of novel aluminum alloy transmission shaft, including the aluminum alloy rivet 3 that is the round annular steel balance piece 2 and countersunk head structure, be provided with 2 at least connecting holes on the steel balance piece 2, aluminum alloy rivet 3 inlays in the connecting hole, wherein, the interior disc of steel balance piece 2 and the central siphon adaptation of aluminum alloy transmission shaft, and steel balance piece 2 passes through resistance welding and welds the surface at aluminum alloy transmission shaft, and 3 bottoms of aluminum alloy rivet link to each other with the central siphon surface of aluminum alloy transmission shaft, in order to ensure that balance piece and aluminum alloy central siphon are connected reliably.
It is worth to say that, the utility model discloses a connecting hole is two or four, and even interval distribution is on the surface of steel balance piece 2 to be equipped with 90 or 120 chamfers on the connecting hole, and the degree of depth of chamfer is 1-2 mm. The utility model discloses an aluminum alloy rivet 3 is countersunk, and the connecting hole diameter is 1.5-3 times of 2 thickness of steel balance pieces, and the effectual intensity of guaranteeing to rivet the balancing piece through resistance welding.
The utility model also provides a novel aluminum alloy transmission shaft, include as above a novel special compound balance piece of aluminum alloy transmission shaft, and 2 welding of this steel balance piece are on the central siphon of aluminum alloy transmission shaft to make 3 bottoms of aluminum alloy rivet link to each other with the central siphon of aluminum alloy transmission shaft.
In order to further explain the technical scheme of the utility model in detail, the implementation process of the balance sheet process of the utility model is described in detail below:
step 1: the aluminum alloy transmission shaft assembly shown in fig. 3 is placed on a dynamic balancing machine for dynamic balance correction, and a proper balance sheet 4 is selected according to the dynamic balance test result and the outer diameter of the aluminum alloy shaft tube and is placed at a position displayed by equipment software.
Step 2: and (3) welding the aluminum alloy rivet 3 in the balance sheet 4 by using a resistance welding machine, fusing the bottom 32 of the aluminum alloy rivet with the aluminum alloy shaft tube 1, and pressing the top 31 of the aluminum alloy rivet against the steel balance sheet 2.
In the step 2, the radian of the inner diameter of the balance sheet 2 made of the balance sheet steel is the same as the radian of the outer circle of the aluminum alloy shaft tube.
In the step 2, connecting holes are arranged on the steel balance sheet 2, the number of the connecting holes is 2 or 4, the diameter of each connecting hole is 1.5 to 3 times of the thickness of the steel balance sheet, the chamfering angle of each connecting hole is 90 degrees or 120 degrees, the chamfering depth is 1 to 2mm,
in the step 2, the aluminum alloy rivet 3 is a countersunk head rivet, the countersunk head angle is the same as the chamfer angle of the connecting hole of the steel balance sheet 2, the height of the countersunk head rivet is 1-3mm more than the thickness of the steel balance sheet 2, and the countersunk head rivet is in interference fit with the connecting hole of the steel balance sheet 2.
In the step 2, after the aluminum alloy rivet 3 is pressed into the steel balance sheet 2, the top 31 of the aluminum alloy rivet is 0.5-1mm higher than the steel balance sheet, and the bottom 32 of the aluminum alloy rivet protrudes 0.5-2mm of the steel balance sheet 2.
Finally, the method of the present application is only a preferred embodiment and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a novel special compound balance piece of aluminum alloy transmission shaft which characterized in that, is including the aluminum alloy rivet that is the annular steel balance piece of circle and countersunk head structure, be provided with 2 at least connecting holes on the steel balance piece, the aluminum alloy rivet is inlayed in the connecting hole.
2. The novel composite balance piece specially used for the aluminum alloy transmission shaft as claimed in claim 1, wherein the inner circular surface of the steel balance piece is matched with the shaft tube of the aluminum alloy transmission shaft and is welded on the surface of the aluminum alloy transmission shaft by resistance welding.
3. The special composite balance sheet for the novel aluminum alloy transmission shaft according to claim 1, wherein two or four connecting holes are uniformly distributed on the surface of the steel balance sheet at intervals.
4. The special composite balance sheet for the novel aluminum alloy transmission shaft according to claim 3, wherein a chamfer of 90 degrees or 120 degrees is arranged on the connecting hole, and the depth of the chamfer is 1-2 mm.
5. The novel composite balance sheet special for the aluminum alloy transmission shaft as claimed in claim 1, wherein the diameter of the connecting hole is 1.5-3 times of the thickness of the steel balance sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121037059.XU CN214698988U (en) | 2021-05-14 | 2021-05-14 | Novel special compound balance sheet for aluminum alloy transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121037059.XU CN214698988U (en) | 2021-05-14 | 2021-05-14 | Novel special compound balance sheet for aluminum alloy transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214698988U true CN214698988U (en) | 2021-11-12 |
Family
ID=78552666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121037059.XU Active CN214698988U (en) | 2021-05-14 | 2021-05-14 | Novel special compound balance sheet for aluminum alloy transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214698988U (en) |
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2021
- 2021-05-14 CN CN202121037059.XU patent/CN214698988U/en active Active
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