CN208919236U - A kind of automobile tension device - Google Patents
A kind of automobile tension device Download PDFInfo
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- CN208919236U CN208919236U CN201821730196.XU CN201821730196U CN208919236U CN 208919236 U CN208919236 U CN 208919236U CN 201821730196 U CN201821730196 U CN 201821730196U CN 208919236 U CN208919236 U CN 208919236U
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- mandrel
- annular
- tension device
- sealing
- upper arm
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Abstract
The utility model provides a kind of automobile tension device, belongs to auto parts field.This automobile tension device includes lower arm, plastic wheel and the upper arm between lower arm and plastic wheel, plastic wheel and upper arm are rotatablely connected, installation cavity is formed between upper and lower arms, torque spring and hollow form mandrel are equipped in installation cavity, mandrel one end and lower arm are connected, torque spring covers outside mandrel, torque spring both ends are connected with upper and lower arms respectively, dust cover is equipped in the mandrel other end, mandrel inner sidewall is equipped with annular groove, annular groove includes the first side wall and second sidewall of position face, the first side wall is between second sidewall and plastic wheel, dust cover is made of elastic material, dust cover includes tubular seals portion, integrally formed with circular chuck on the lateral wall of sealing one end, circular chuck is located in annular groove, circular chuck and the first side wall tight abutment, which are formed, to be sealed, the sealing other end is in closed.This automobile tension device has the advantages that stable structure.
Description
Technical field
The utility model belongs to auto parts field, is related to a kind of automobile tension device.
Background technique
Tension device acts on the Timing Belt or timing chain of engine, plays guiding and tensioner to it, makes it
Always it is in best tensioner state.Be generally divided into oil pressure and mechanical two ways, they can automatically to Timing Belt and
The adjusting of timing chain progress tensioner degree.
There are many type for the mechanical tension device sold on the market, and one of tension device include plastic wheel, lower arm and
Upper arm between plastic wheel and lower arm, wherein the upper end of upper arm and plastic wheel are rotatablely connected；It is equipped between upper and lower arms
Torque spring, and the both ends of torque spring are connected with upper and lower arms respectively；The mandrel in hollow form is fixed on lower arm.It uses
When, mandrel is connected with engine components, to drive lower arm swing, and plastic wheel tensioner belt is controlled by torque spring, has
Have the advantages that easy to use.
In actual products, mandrel one end can be arranged dustproof cover and carry out blocks dust, and dustproof cover is positioned by riveted lid,
And riveted lid is connected by way of riveting with mandrel.But in actual processing, there is the unstable problem of riveting, lead to tensioner
Device occurs dustproof cover in actual use and falls off, and influences the job stability of tension device.
Utility model content
The purpose of this utility model is the presence of the above problem in view of the prior art, proposes a kind of automobile tension device, solution
Certainly the technical issues of is to improve structural stability while simplifying structure.
The purpose of this utility model can be realized by the following technical scheme: a kind of automobile tension device, including lower arm, plastics
Wheel and the upper arm between lower arm and plastic wheel, plastic wheel and upper arm are rotatablely connected, and installation is formed between upper and lower arms
Chamber, installation cavity is interior to be equipped with torque spring and the mandrel in hollow form, and mandrel is parallel with the axis of both plastic wheels, and mandrel one end
It is connected with lower arm, torque spring covers outside mandrel, and the both ends of torque spring are connected with upper and lower arms respectively, the mandrel
The other end in be equipped with dust cover, which is characterized in that the inner sidewall of the mandrel be equipped with annular groove, annular groove and core
Axis coaxial arrangement, and annular groove includes the first side wall and second sidewall of position face, and the first side wall is located at second sidewall
Between plastic wheel, the dust cover is made of elastic material, which includes sealing in a tubular form, and sealing and
The central axis of both mandrels is conllinear, and integrally formed with circular chuck on one end lateral wall of sealing, circular chuck is located at ring
In connected in star, and circular chuck and the first side wall tight abutment are formed and are sealed, and the other end of sealing is in closed, and sealing
The other end stretch out installation cavity and with upper arm be connected.
It is connected directly by design dust cover with mandrel, to omit the riveting process of early period, can both reduce assembling work in this way
Sequence, to facilitate processing, further through a connector is omitted, to simplify structure, the fixing that Lai Tigao dust cover is connect with mandrel,
To improve the structural stability of tension device.
In above-mentioned automobile tension device, installed on the lateral wall of the other end of the sealing integrally formed with annular
Portion, the upper arm is equipped with locating slot, and locating slot is located between annular mounting portion and annular groove, the annular installation
The edge in portion is bent to form embedded division to locating slot direction, and the shape and size of embedded division match with locating slot, and is embedded in
It inserts in locating slot in portion.Under the cooperation of embedded division and locating slot, the connection effect of dust cover and upper arm is effectively improved.
Run through in above-mentioned automobile tension device, on the side wall of the sealing and be equipped with strip groove, and the length of strip groove
Degree is along the axially extending of sealing, and the strip groove is in open-like shape close to one end of circular chuck, and the other end of strip groove
In closed.Under strip groove effect, make the convenience that dust cover can deformation occurs by a relatively large margin, and Lai Tigao dust cover is installed.
There is limiting section in a tubular form in above-mentioned automobile tension device, on the upper arm, limiting section is in installation cavity
It is interior and cover outside mandrel, core retainer plate is equipped between limiting section and mandrel, core retainer plate and upper arm are fixedly connected with, and core retainer plate is set in outside mandrel,
Core retainer plate has annular flange, outside of the mandrel close to one end of annular mounting portion on the lateral wall of one end of annular mounting portion
There is annular convex shoulder, annular convex shoulder is located between annular mounting portion and annular flange, and annular convex shoulder is pressed on annular and turns on wall
Bian Shang.Under the cooperation of annular convex shoulder and annular flange, lower arm is effectively prevent to be detached from upper arm, the stable structure of Lai Tigao tension device
Property.
In above-mentioned automobile tension device, the inner sidewall of above-mentioned core retainer plate and the lateral wall of mandrel are periphery and the two
Mutually recline.
In above-mentioned automobile tension device, it is arranged outside above-mentioned torque spring and fixes rubber sleeve.
In above-mentioned automobile tension device, above-mentioned elastic material uses plastic material or rubber material.
Compared with prior art, this automobile tension device is connected directly by design dust cover with mandrel, to omit early period
Riveting process can both reduce assembling procedure in this way, to facilitate processing, further through a connector is omitted, to simplify structure, to mention
The fixing that high dust cover is connect with mandrel, to improve the structural stability of tension device.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of this automobile tension device.
Fig. 2 is the enlarged structure schematic diagram in Fig. 1 at A.
Fig. 3 is the left view structural representation of this automobile tension device.
In figure, 1, lower arm；2, plastic wheel；3, upper arm；3a, limiting section；4, installation cavity；5, torque spring；6, mandrel；6a,
Annular convex shoulder；6b, annular groove；6b1, the first side wall；6b2, second sidewall；7, core retainer plate；7a, annular flange；8, dust cover；
8a, sealing；8b, circular chuck；8c, strip groove；8d, annular mounting portion；8e, embedded division；9, rubber sleeve.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, this automobile tension device includes lower arm 1, plastic wheel 2 and upper between lower arm 1 and plastic wheel 2
Arm 3.
Specifically, plastic wheel 2 and upper arm 3 are rotatablely connected, and in the present embodiment, plastic wheel 2 passes through bearing and upper arm 3
Rotation connection.Installation cavity 4 is formed between upper arm 3 and lower arm 1, is equipped with torque spring 5 and the mandrel 6 in hollow form in installation cavity 4,
Wherein, mandrel 6 is parallel with the axis of both plastic wheels 2, and 6 one end of mandrel and lower arm 1 are connected；5 sets of torque spring in mandrel 6
Outside, and the both ends of torque spring 5 are connected with upper arm 3 and lower arm 1 respectively.Further illustrate that there is limit in a tubular form on upper arm 3
Portion 3a, and limiting section 3a and upper arm 3 are an integral structure.Limiting section 3a is in installation cavity 4 and covers outside mandrel 6, limiting section
Core retainer plate 7 is equipped between 3a and mandrel 6, core retainer plate 7 and upper arm 3 are fixedly connected with, and core retainer plate 7 is set in outside mandrel 6, and core retainer plate 7 is close to annular
There is annular flange 7a, mandrel 6 is on the lateral wall of one end of annular mounting portion 8d on the lateral wall of one end of mounting portion 8d
It is located between annular mounting portion 8d and annular flange 7a with annular convex shoulder 6a, annular convex shoulder 6a, and annular convex shoulder 6a is pressed on
On annular flange 7a.Under the cooperation of annular convex shoulder 6a and annular flange 7a, it effectively prevent lower arm 1 to be detached from upper arm 3, Lai Tigao rises
The structural stability of tight device.Further, the lateral wall of the inner sidewall of core retainer plate 7 and mandrel 6 is periphery and the two is affixed
It leans on.
As shown in Figure 1, being equipped with dust cover 8 in the other end of mandrel 6, dust cover 8 is made of elastic material, and elastic material
Using plastic material or rubber material.The inner sidewall of mandrel 6 is equipped with annular groove 6b, and annular groove 6b and mandrel 6 are coaxial
Setting.Annular groove 6b includes the first side wall 6b1 and second sidewall 6b2 of position face, and the first side wall 6b1 is located at second side
Between wall 6b2 and plastic wheel 2.Dust cover 8 includes sealing 8a in a tubular form, and the central axis of 6 the two of sealing 8a and mandrel
Line is conllinear.It is located in annular groove 6b on one end lateral wall of sealing 8a integrally formed with circular chuck 8b, circular chuck 8b,
And circular chuck 8b and the first side wall 6b1 tight abutment are formed and are sealed.The other end of sealing 8a is in closed, and sealing 8a
The other end stretch out installation cavity 4 and with upper arm 3 be connected.It further illustrates, runs through on the side wall of sealing 8a and be equipped with strip groove 8c,
And the length of strip groove 8c, along the axially extending of sealing 8a, strip groove 8c is in open-like shape close to one end of circular chuck 8b, and
The other end of strip groove 8c is in closed.Under strip groove 8c effect, make that dust cover 8 can deformation occurs by a relatively large margin, Lai Tigao
The convenience that dust cover 8 is installed.
Wherein, the connection type of sealing 8a and upper arm 3 is specific as follows: one on the lateral wall of the other end of sealing 8a
Form annular mounting portion 8d, upper arm 3 is equipped with locating slot, and locating slot be located at annular mounting portion 8d and annular groove 6b it
Between.The edge of annular mounting portion 8d is bent to form embedded division 8e to locating slot direction, and the shape and size of embedded division 8e are and fixed
Position slot matches, and embedded division 8e is inserted in locating slot.
In the present embodiment, it is arranged and fixes rubber sleeve 9 outside torque spring 5, preferably to protect torque spring 5.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (7)
1. a kind of automobile tension device, including lower arm (1), plastic wheel (2) and upper between lower arm (1) and plastic wheel (2)
Arm (3), plastic wheel (2) and upper arm (3) are rotatablely connected, and form installation cavity (4) between upper arm (3) and lower arm (1), installation cavity (4)
Interior to be equipped with torque spring (5) and the mandrel (6) in hollow form, mandrel (6) is parallel with the axis of both plastic wheels (2), and mandrel
(6) one end and lower arm (1) are connected, torque spring (5) cover mandrel (6) outside, and the both ends of torque spring (5) respectively with upper arm
(3) it is connected with lower arm (1), is equipped with dust cover (8) in the other end of the mandrel (6), which is characterized in that the mandrel
(6) inner sidewall is equipped with annular groove (6b), annular groove (6b) and mandrel (6) coaxial arrangement, and annular groove (6b) wraps
The first side wall (6b1) and second sidewall (6b2) of position face are included, and the first side wall (6b1) is located at second sidewall (6b2) and modeling
Between material wheel (2), the dust cover (8) is made of elastic material, which includes sealing (8a) in a tubular form,
And sealing (8a) and the central axis of mandrel (6) the two are conllinear, integrally formed with ring on one end lateral wall of sealing (8a)
Shape clamp (8b), circular chuck (8b) is located in annular groove (6b), and circular chuck (8b) is closely supported with the first side wall (6b1)
Sealed by being formed, the other end of sealing (8a) is in closed, and the other end of sealing (8a) stretch out installation cavity (4) and with it is upper
Arm (3) is connected.
2. automobile tension device according to claim 1, which is characterized in that the outside of the other end of the sealing (8a)
Integrally formed with annular mounting portion (8d) on wall, the upper arm (3) is equipped with locating slot, and locating slot is located at annular mounting portion
Between (8d) and annular groove (6b), the edge of the annular mounting portion (8d) is bent to form embedded division to locating slot direction
The shape and size of (8e), embedded division (8e) match with locating slot, and embedded division (8e) is inserted in locating slot.
3. automobile tension device according to claim 2, which is characterized in that run through on the side wall of the sealing (8a) and set
Have strip groove (8c), and the length of strip groove (8c), along the axially extending of sealing (8a), the strip groove (8c) leans on near-ring
One end of shape clamp (8b) is in open-like shape, and the other end of strip groove (8c) is in closed.
4. automobile tension device according to claim 2, which is characterized in that have limit in a tubular form on the upper arm (3)
Position portion (3a), limiting section (3a) be in installation cavity (4) and cover mandrel (6) outside, be equipped between limiting section (3a) and mandrel (6)
Core retainer plate (7), core retainer plate (7) and upper arm (3) are fixedly connected with, and core retainer plate (7) is set in mandrel (6) outside, and core retainer plate (7) is close to annular mounting portion
There is annular flange (7a), lateral wall of the mandrel (6) close to one end of annular mounting portion (8d) on the lateral wall of the one end of (8d)
Upper to have annular convex shoulder (6a), annular convex shoulder (6a) is located between annular mounting portion (8d) and annular flange (7a), and convex annular
Shoulder (6a) is pressed on annular flange (7a).
5. automobile tension device according to claim 4, which is characterized in that the inner sidewall and mandrel (6) of above-mentioned core retainer plate (7)
Lateral wall be periphery and the two mutually reclines.
6. automobile tension device according to claim 1, which is characterized in that be arranged and fix outside above-mentioned torque spring (5)
Rubber sleeve (9).
7. automobile tension device according to claim 1, which is characterized in that above-mentioned elastic material uses plastic material or rubber
Glue material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821730196.XU CN208919236U (en) | 2018-10-24 | 2018-10-24 | A kind of automobile tension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821730196.XU CN208919236U (en) | 2018-10-24 | 2018-10-24 | A kind of automobile tension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208919236U true CN208919236U (en) | 2019-05-31 |
Family
ID=66710562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821730196.XU Active CN208919236U (en) | 2018-10-24 | 2018-10-24 | A kind of automobile tension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208919236U (en) |
-
2018
- 2018-10-24 CN CN201821730196.XU patent/CN208919236U/en active Active
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