CN203902281U - Balance weight assembly and transmission shaft - Google Patents
Balance weight assembly and transmission shaft Download PDFInfo
- Publication number
- CN203902281U CN203902281U CN201420284240.4U CN201420284240U CN203902281U CN 203902281 U CN203902281 U CN 203902281U CN 201420284240 U CN201420284240 U CN 201420284240U CN 203902281 U CN203902281 U CN 203902281U
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- CN
- China
- Prior art keywords
- balance weight
- transmission shaft
- weight assembly
- hook face
- curved surface
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Abstract
The utility model provides a balance weight assembly and a transmission shaft, and relates to the technical field of automobiles. The balance weight assembly is used for being arranged on the transmission shaft. The balance weight assembly comprises an outer hook face, an inner hook face, a first hook face and a second hook face, wherein the inner hook face is connected with a shaft rod of the transmission shaft, the first hook face and the second hook face are arranged between the outer hook face and the inner hook face, the first hook face is close to the outer hook face, the second hook face is close to the inner hook face, and a containing space used for containing balance weight pieces is formed between the first hook face and the second hook face. According to the balance weight assembly, balance weight pieces of different specifications and weights are inserted into the containing space between the first hook face and the second hook face, so that the balance weight assembly has different weights. When a test car tests the resonance effect of the transmission shaft vibration frequency and the whole car frequency, working efficiency is improved. The balance weight assembly is simple in structure, and saves the production cost.
Description
Technical field
The utility model relates to automobile technical field, particularly a kind of balance weight assembly and transmission shaft.
Background technology
Along with people are more and more higher to the NVH of automobile (noise, vibration and sound vibration roughness) requirement, transmission shaft oscillation frequency and car load frequency produce resonance, can aggravate noise.Main engine plants, for promoting vehicle complete vehicle vibrating noise quality, need to determine that NVH improves effect by changing the transmission shaft clump weight of Different Weight, and current all clump weights and transmission shaft are integral type, in proof procedure, need to change transmission shaft, work heavy.
Utility model content
The purpose of this utility model is to provide a kind of balance weight assembly and transmission shaft, and the heavy checking that has solved research and development transmission shaft vibration damping in early stage counterweight scheme need be changed the problem of transmission shaft work, has improved work efficiency.
In order to achieve the above object, the utility model provides a kind of balance weight assembly, be used for being arranged at transmission shaft, described balance weight assembly comprises: positive camber, for the negative camber that is connected with the axostylus axostyle of described transmission shaft and be arranged at described positive camber and described negative camber between first surface and the second curved surface, described first surface is near described positive camber setting, and described the second curved surface is near described negative camber setting;
Between described first surface and described the second curved surface, be provided with for holding the spatial accommodation of weight stack.
Wherein, the material of described balance weight assembly is elastomeric material.
Wherein, on described first surface, towards described the second curved surface direction, be provided with at least one first projection;
On described the second curved surface, towards described first surface direction, be provided with at least one second projection;
Described in each the first projection all with a described second protruding adjacent setting, composition is used for blocking the overhead structure of establishing described weight stack.
Wherein, a side end of described first surface and described the second curved surface is connected;
The end side of described first surface is provided with one the 3rd projection towards described the second curved surface direction, and described the 3rd projection is connected with described the second curved surface.
Preferably, embedded a plurality of metal abaculus between described the second curved surface and described negative camber.
The utility model embodiment also provides a kind of transmission shaft, comprises transmission shaft axostylus axostyle, and described transmission shaft also comprises two balance weight assemblies as above, and two described balance weight assemblies are oppositely arranged and are coated on described transmission shaft axostylus axostyle.
Wherein, described transmission shaft also comprises:
Be used for two described balance weight assemblies being connected and being fixed on a plurality of locking intermediate plates on described transmission shaft axostylus axostyle.
Wherein, on described locking intermediate plate, wear a bolt, and by the fixing described locking intermediate plate of a nut.
Technique scheme of the present utility model at least has following beneficial effect:
In the balance weight assembly of the utility model embodiment, by the spatial accommodation between the second curved surface and the 3rd curved surface, insert the weight stack of different size weight, make balance weight assembly there is different weight; When the resonance effect of a test car checking transmission shaft oscillation frequency and car load frequency, increase work efficiency; And this weighted member structures is simple, saves production cost.
Accompanying drawing explanation
Fig. 1 represents the lateral plan of the balance weight assembly of the utility model embodiment;
Fig. 2 represents the concrete structure schematic diagram of the utility model embodiment;
Fig. 3 represents the cross sectional drawing of the balance weight assembly of the utility model embodiment;
Fig. 4 represents the axial view of the balance weight assembly of the utility model embodiment;
Fig. 5 represents the constructional drawing of the weight stack of the utility model embodiment;
Fig. 6 represents the schematic diagram that the transmission shaft of the utility model embodiment coordinates with balance weight assembly;
Fig. 7 represents the structural representation of the locking intermediate plate of the utility model embodiment.
The specific embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The utility model is integral type for clump weight in prior art and transmission shaft, in proof procedure, need to change transmission shaft, the heavy problem of working, a kind of balance weight assembly and transmission shaft are provided, the weight stack that inserts different size weight by the spatial accommodation between the second curved surface and the 3rd curved surface, makes balance weight assembly have different weight; When the resonance effect of a test car checking transmission shaft oscillation frequency and car load frequency, increase work efficiency; And this weighted member structures is simple, saves production cost.
As shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 5, the utility model embodiment provides a kind of balance weight assembly, be used for being arranged at transmission shaft, described balance weight assembly comprises: positive camber 10, the negative camber 20 being connected for the axostylus axostyle 2 with described transmission shaft and be arranged at first surface 30 and the second curved surface 40 between described positive camber 10 and described negative camber 20, described first surface 30 arranges near described positive camber 10, and described the second curved surface 40 arranges near described negative camber 20;
Between described first surface 30 and described the second curved surface 40, be provided with for holding the spatial accommodation of weight stack 32.
In above-described embodiment of the present utility model, balance weight assembly consists of four curved surfaces, and the degree of crook of this curved surface is not limited to a fixed value, preferably, can be bent to a semicircle; Wherein, as shown in Figure 5, the shape of weight stack and the shape of balance weight assembly that are inserted in described spatial accommodation are consistent, and its degree of crook is consistent with the degree of crook of curved surface.Weight stack has multiple different specification, and such as 10g, 15g, 20g, 25g, 50g etc. can be selected according to practical application the weight stack of Different Weight, makes this balance weight assembly have different weight; At checking auto NVH, improve in the process of effect, without the frequent transmission shaft of changing, just can make transmission shaft there is different weight, improved work efficiency.
In specific embodiment of the utility model, the material of described balance weight assembly is elastomeric material.
In the utility model above-described embodiment, elastomeric material is the latex that extracts the plants such as rubber tree, Russian dandelion, the material with elasticity, insulativity, waterproof and air of making after processing.Elastomeric high molecular compound.Be divided into two kinds of natural rubber and neoprene.Natural rubber is to be processed into extract colloid from the plants such as rubber tree, Russian dandelion after; Neoprene is obtained through polymerization reaction by various monomers.Rubber (Rubber): the high resiliency polymeric material with reversible deformation.At room temperature high resilience can produce compared with large deformation under very little External Force Acting, removes resilient after external force.Rubber belongs to complete amorphous polymer; Adopt the balance weight assembly of elastomeric material can conveniently insert weight stack 42, and due to elastic reaction, weight stack 42 is difficult for skidding off.
In specific embodiment of the utility model, as shown in Figure 2, on described first surface 30, towards described the second curved surface 40 directions, be provided with at least one first projection 711;
On described the second curved surface 40, towards described first surface 30 directions, be provided with at least one second projection 712;
Described in each the first projection 711 all with described second projection 712 adjacent settings, composition is used for blocking the overhead structure 71 of establishing described weight stack 42.
In above-described embodiment of the present utility model, first surface 30 and the second curved surface 40 column distribution many groups overhead structure 71, weight stack 42 inserts between first projection the 711 and second projection 712, there is elastic deformation in first projection the 711 and second projection 712, produce a predetermincd tension clamping weight stack 42, prevent that weight stack 42 from coming off.
In above-described embodiment of the present utility model, as shown in Figure 2, described first surface 30 is connected with a side end of described the second curved surface 40;
The end side of described first surface 30 is provided with one the 3rd projection 72 towards described the second curved surface 40 directions, and described the 3rd projection 72 is connected with described the second curved surface 40.
In specific embodiment of the utility model, one the 3rd projection 72 is set in the end, one end of first surface, weight stack 42 is between the 3rd projection the 72 and second curved surface 40, there is elastic deformation in the 3rd projection 72, producing a predetermincd tension clamping weight stack 42 comes off, while, because the end that the 3rd projection 72 is arranged at first surface is connected with described the second curved surface 40, also can be played dustproof effect, reduces the cleaning cost of balance weight assembly.
In above-described embodiment of the present utility model, as shown in Figure 3, embedded a plurality of metal abaculus 6 between described the second curved surface 40 and described negative camber 20.
In specific embodiment of the utility model, in order to make balance weight assembly itself there is constant weight, embedded a plurality of metal abaculus 6 between the second curved surface 40 of the balance weight assembly of elastomeric material and negative camber 20, wherein, the concrete quantity of metal abaculus 6 can comprehensively determine according to the requirements for quality of the size of balance weight assembly and transmission shaft, be not limited to a fixed value.
In order better to realize above-mentioned purpose, as shown in Figure 6, Figure 7, the utility model embodiment also provides a kind of transmission shaft, comprise transmission shaft axostylus axostyle 2, it is characterized in that, described transmission shaft also comprises that 4, two described balance weight assemblies 4 of two balance weight assemblies as above are oppositely arranged and is coated on described transmission shaft axostylus axostyle 2.
Wherein, described transmission shaft also comprises:
Be used for two described balance weight assemblies 4 being connected and being fixed on a plurality of locking intermediate plates 3 on described transmission shaft axostylus axostyle 2.
Wherein, on described locking intermediate plate 3, wear a bolt, and by the fixing described locking intermediate plate 3 of a nut.
In specific embodiment of the utility model, as shown in Figure 6, transmission shaft specifically comprises, Rzeppa joint 1, axostylus axostyle 2, locking intermediate plate 3, balance weight assembly 4, sphere roller type universal-joint 5 compositions.And by two locking intermediate plates 3, balance weight assembly is fixed on transmission shaft axostylus axostyle 2; Further, two ends that can balance weight assembly 4 are set to U-shaped groove structure, have damped vibration effect; Locking intermediate plate 3, has locking effect, and locking intermediate plate 3 is firmly fixed on balance weight assembly 4 on axostylus axostyle 2 by the U-shaped draw-in groove at balance weight assembly 4 two ends.
Preferably, the structure of locking intermediate plate 3 as shown in Figure 6, is locked this locking intermediate plate 3 by fastening nut, thus locking balance weight assembly 4.
In the balance weight assembly of the utility model embodiment, by the spatial accommodation between the second curved surface and the 3rd curved surface, insert the weight stack of different size weight, make balance weight assembly there is different weight; When the resonance effect of a test car checking transmission shaft oscillation frequency and car load frequency, increase work efficiency; And this weighted member structures is simple, saves production cost.
It should be noted that, the transmission shaft that the utility model provides is the transmission shaft that comprises above-mentioned balance weight assembly, and all embodiment of above-mentioned balance weight assembly are all applicable to this transmission shaft, and all can reach same or analogous beneficial effect.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. a balance weight assembly, be used for being arranged at transmission shaft, it is characterized in that, described balance weight assembly comprises: positive camber, for the negative camber that is connected with the axostylus axostyle of described transmission shaft and be arranged at described positive camber and described negative camber between first surface and the second curved surface, described first surface is near described positive camber setting, and described the second curved surface is near described negative camber setting;
Between described first surface and described the second curved surface, be provided with for holding the spatial accommodation of weight stack.
2. balance weight assembly according to claim 1, is characterized in that, the material of described balance weight assembly is elastomeric material.
3. balance weight assembly according to claim 2, is characterized in that, on described first surface, towards described the second curved surface direction, is provided with at least one first projection;
On described the second curved surface, towards described first surface direction, be provided with at least one second projection;
Described in each the first projection all with a described second protruding adjacent setting, composition is used for blocking the overhead structure of establishing described weight stack.
4. balance weight assembly according to claim 2, is characterized in that, a side end of described first surface and described the second curved surface is connected;
The end side of described first surface is provided with one the 3rd projection towards described the second curved surface direction, and described the 3rd projection is connected with described the second curved surface.
5. balance weight assembly according to claim 2, is characterized in that, embedded a plurality of metal abaculus between described the second curved surface and described negative camber.
6. a transmission shaft, comprises transmission shaft axostylus axostyle, it is characterized in that, described transmission shaft also comprises two balance weight assemblies as described in claim 1 to 5 any one, and two described balance weight assemblies are oppositely arranged and are coated on described transmission shaft axostylus axostyle.
7. transmission shaft according to claim 6, is characterized in that, described transmission shaft also comprises:
Be used for two described balance weight assemblies being connected and being fixed on a plurality of locking intermediate plates on described transmission shaft axostylus axostyle.
8. transmission shaft according to claim 7, is characterized in that, on described locking intermediate plate, wears a bolt, and by the fixing described locking intermediate plate of a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284240.4U CN203902281U (en) | 2014-05-29 | 2014-05-29 | Balance weight assembly and transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284240.4U CN203902281U (en) | 2014-05-29 | 2014-05-29 | Balance weight assembly and transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203902281U true CN203902281U (en) | 2014-10-29 |
Family
ID=51776572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420284240.4U Expired - Fee Related CN203902281U (en) | 2014-05-29 | 2014-05-29 | Balance weight assembly and transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203902281U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483054A (en) * | 2021-06-30 | 2021-10-08 | 东风汽车集团股份有限公司 | Vibration damping block, driving shaft assembly and assembling method thereof |
| CN114537046A (en) * | 2022-02-23 | 2022-05-27 | 重庆长安汽车股份有限公司 | Counterweight structure arranged on driving half shaft |
-
2014
- 2014-05-29 CN CN201420284240.4U patent/CN203902281U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483054A (en) * | 2021-06-30 | 2021-10-08 | 东风汽车集团股份有限公司 | Vibration damping block, driving shaft assembly and assembling method thereof |
| CN114537046A (en) * | 2022-02-23 | 2022-05-27 | 重庆长安汽车股份有限公司 | Counterweight structure arranged on driving half shaft |
| CN114537046B (en) * | 2022-02-23 | 2024-02-13 | 重庆长安汽车股份有限公司 | Counterweight structure arranged on driving half shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |