CN207229689U - A kind of automatic tensioner - Google Patents
A kind of automatic tensioner Download PDFInfo
- Publication number
- CN207229689U CN207229689U CN201721091891.1U CN201721091891U CN207229689U CN 207229689 U CN207229689 U CN 207229689U CN 201721091891 U CN201721091891 U CN 201721091891U CN 207229689 U CN207229689 U CN 207229689U
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- automatic tensioner
- support plate
- bearing
- installation base
- axle sleeve
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Abstract
A kind of automatic tensioner, including body are the utility model is related to（2）, support plate（1）, spring（3）, belt pulley（12）, axle bolt（14）, bearing（15）, central axle sleeve（6）, the bearing（15）Installed in belt pulley（12）Centre bore in, the support plate（1））Bottom relative to support plate（1）Top to body（2）Lateral bend, in central axle sleeve（6）Outer circumferential walls there is radial flange（21）, the radial flange（21）It is overlapped on first installation base（20）Top planes on；In the body（2）The periphery of connecting hole be provided with the protrusion of circular configuration（22）, the protrusion（22）Snap onto the radial flange（21）It is upper and with first installation base（19）Top planes contact.The automatic tensioner automatic tensioner service life of such a structure setting is longer, is not easy to deposit dust in the installation cavity body of tensioning wheel, antiwear property is higher.
Description
Technical field
It the utility model is related to a kind of automatic tensioner.
Background technology
Belt transmission is widely used in automobile engine, in the belt course of work, appropriateness is kept using tension pulley
Belt tension be essential, the train accessory system of belt transmission is typically mounted in the front surface of engine, each
On the belt pulley that annex is all mounted on an axle, for receiving the power from some form of belt transmission.Most automobile engines
The middle single serpentine belt of generally use, the single belt of detour drives the annex, the use of belt between each appurtenances
So that engine device is compacter, cost is relatively low, efficient, but at the same time, belt should have predetermined tension force when working normally,
When in place, belt elongates and exceedes its length so as to cause the decline of belt tension to be easy to cause belt slippage slightly, with list
When root band transmits, the generation of more serious belt slippage phenomenon can be caused because the length of single band is longer, therefore in belt
In the course of work, it is essential that the belt pulley based part of appropriate belt tension is kept using tension pulley.
The Chinese utility model patent application of the Application No. 201220438675.0 of the applicant's earlier application one kind
Automatic tensioner, including body, support plate, spring, belt pulley, axle bolt, bearing, linking arm, rotary middle spindle, linking arm, turn
Central axle sleeve is cased with dynamic central shaft, the central axle sleeve is equipped with external screw thread, what the central axle sleeve was born with central axle sleeve
Power is centrally located position, stress with.The defects of tensioning wheel, is, after much time using, one side body holds
Easily the damage of body is caused to further result in the damage of tensioning wheel, the bearing and axle bolt of another aspect belt pulley by spring spreading
Gap content be also easy to produce dust, reduce the service life of tensioning wheel.
Utility model content
To overcome above-mentioned shortcomings and deficiencies of the prior art, the utility model offer one kind is simple in structure, bearing capacity is strong,
Be hardly damaged, sealing effect preferably and a kind of automatic tensioner for being easily installed.The automatic tensioner showing in the introduction
Have on technical foundation, be further optimized to the mounting means and sealing means of belt pulley.
To achieve the above object, first purpose of the utility model is to provide a kind of automatic tensioner, including body, branch
Plate, spring, belt pulley, axle bolt, bearing, central axle sleeve, the bearing are installed in the centre bore of belt pulley, the support plate
To body lateral bend, the with center connecting hole is set in the top either side of the support plate relative to the top of support plate for bottom
One installation base, the top opposite side of the support plate be provided with corresponded with first installation base second installation it is convex
Platform；The periphery of second installation base is provided with circular mounting groove, ripple is pressed with successively in the circular mounting groove
Shape spring, antifriction panel seat and antifriction plate, spring and spring backing plate are set with first installation base at the same time；The center
The outer circumferential walls of axle sleeve have radial flange, and the radial flange is overlapped in the top planes of first installation base；
The periphery of the connecting hole of the body is provided with the protrusion of circular configuration, and the protrusion snaps onto the radial flange
Above and with the top planes of first installation base contact.
Preferably, the central axle sleeve is placed in the center connecting hole, and central axle sleeve one end sequentially passes through the ripple
Shape spring, antifriction panel seat are fixed to screw and are connected with the antifriction plate, and the other end of central axle sleeve is fixed to screw with body to be connected.
In any of the above-described scheme preferably, the bottom of the support plate is provided with pedestal.
In any of the above-described scheme preferably, it is provided with bearing base on the center of the pedestal.
In any of the above-described scheme preferably, the bearing base has step circles, in the circle centre position of the step circles
Offer connecting hole.
In any of the above-described scheme preferably, the circle set around the bearing base is further opened with the pedestal
Connected in star.
In any of the above-described scheme preferably, the pedestal has outwardly circular seal portion, and the circle is close
Envelope portion is in the periphery of the circular groove.
In any of the above-described scheme preferably, radial groove, the radial direction are provided with the center of the belt pulley
Baffle ring is installed with groove.
In any of the above-described scheme preferably, the body is in the either side of the support plate with the belt pulley at the same time
On face.
In any of the above-described scheme preferably, the belt pulley is rotatably fixed installed in support plate by axle bolt
On pedestal.
In any of the above-described scheme preferably, the axle bolt is fixedly connected through bearing with the connecting hole.
In any of the above-described scheme preferably, the bearing is deep groove ball bearing.
In any of the above-described scheme preferably, it is further sleeved with backing plate on first installation base.
In any of the above-described scheme preferably, the backing plate at the same time with the spring and spring pad contact.
In any of the above-described scheme preferably, it is further sleeved with axle sleeve on the central axle sleeve.
In any of the above-described scheme preferably, it is additionally provided with dustproof cover in the centre bore of the belt pulley.
Compared with prior art the utility model has the advantage of：The automatic tensioner service life is longer, tensioning wheel
It is not easy to deposit dust in installation cavity body, antiwear property is higher.The thickness of body is especially the increase in, is further added
The length of the centre bore of body, improves the installation strength of body and the central axle sleeve, does not easily cause the disengaging of body.In base
Circular seal portion is provided with seat, it is possible to increase the service life of belt pulley.
Brief description of the drawings
Fig. 1 is the main structure diagram according to a preferred embodiment of the automatic tensioner of the utility model.
Fig. 2 is the left view structural representation according to the automatic tensioner embodiment illustrated in fig. 1 of the utility model.
Fig. 3 is the right side structural representation according to the automatic tensioner embodiment illustrated in fig. 1 of the utility model.
Fig. 4 is the schematic cross-sectional view according to the automatic tensioner embodiment illustrated in fig. 1 of the utility model.
Embodiment
It is preferable to carry out being further elaborated explanation to one of the automatic tensioner shown in the utility model below in conjunction with the accompanying drawings.
Embodiment 1：
As shown in Figs 1-4, Fig. 1 shows the front view of one preferred embodiment of automatic tensioner of the utility model.Fig. 2 is
The left view of Fig. 1.Fig. 3 is the right view of Fig. 1.Automatic tensioner in the present embodiment, including body 2, support plate 1, spring 3, skin
Belt wheel 12, axle bolt 14, bearing 15, central axle sleeve 6.Body 2 is fixedly mounted on the top of support plate 1 by the effect of central axle sleeve 6
Portion.Belt pulley 12 is fixedly mounted on the bottom of support plate 1 by axle bolt 14.Bearing 15 is installed in the centre bore of belt pulley 12.
In the present embodiment, the bottom of the support plate 1 relative to the top of support plate 1 to 2 lateral bend of body.In the top either side of support plate 1
The first installation base 19 with center connecting hole 18 is provided with, is provided with and the described first peace in the top opposite side of support plate 1
The second installation base 20 that dress boss 19 corresponds.The spring 3 is sleeved on the first installation base 19.It is convex in the second installation
The periphery of platform 20 is provided with circular mounting groove, is pressed with wavy spring 8,9 and of antifriction panel seat successively in the circular mounting groove
Antifriction plate 10 is so that wavy spring 8 and antifriction panel seat 9 are sleeved on second installation base 20.In the present embodiment, it is described
Wavy spring 8 can use disc spring to substitute.In the present embodiment, it is further sleeved with spring backing plate 4 on the first installation base 19.Center
Axle sleeve 6 is placed in the center connecting hole 18.Axle sleeve 5 is further sleeved with the central axle sleeve 6.Body 2 is made of cast aluminium.
One end of central axle sleeve 6 is fixed to screw and is connected with the antifriction plate 10, and the other end is fixed to screw and is connected with the body 2.Center
6 one end of axle sleeve sequentially passes through the wavy spring 8, antifriction panel seat 9 is fixed to screw and is connected with the antifriction plate 10, central axle sleeve 6
The other end and body 2 fix to screw and be connected.In the present embodiment, the body 2 is in described at the same time with the belt pulley 12
On the either side of support plate 1.In the present embodiment, bearing 15 is deep groove ball bearing.
Fig. 4 shows the sectional view of the automatic tensioner in the present embodiment.In the present embodiment, the central axle sleeve 6
Outer circumferential walls have radial flange 21, and the radial flange 21 is overlapped in the top planes of first installation base 19；Footpath
It is less than the diameter of the first installation base 19 to the diameter of flange 21.The periphery of the connecting hole of the body 2 is provided with circle
The protrusion 22 of shape structure, the protrusion 22 snap onto on the radial flange 21 and with the top of first installation base 19
Facial planes contacts.The radial flange 21 is placed between the connecting hole of the protrusion 22 and the body 2 in the gap formed.
The diameter more than the first installation base 19 of the protrusion 22.
The bottom of the support plate 1 is provided with pedestal 23, bearing base is provided with the center of the pedestal 23
24, the bearing base 24 has step circles 25.Connecting hole is offered in the circle centre position of step circles 25.Also set up on pedestal 23
There is the circular groove 26 set around the bearing base 24.The pedestal 23 has outwardly circular seal portion 27, institute
State the periphery that circular seal portion 27 is in the circular groove.Bearing 15 in the centre bore of belt pulley 12 is sleeved on axis spiral shell at the same time
In the step circles 25 of bolt 14 and the bearing base 23；Radial groove, the radial direction are provided with the centre bore of belt pulley 12
It is in groove between the bearing 15 and the pedestal 23.Baffle ring 13 is installed with the radial groove.The skin
Belt wheel 12 is rotatably fixed on the pedestal 23 of support plate 1 by axle bolt 14.The circular seal 27 is placed in the skin
In the circular trough of 12 side of belt wheel.The axle bolt 14 is fixedly connected through bearing 15 with the connecting hole.In the belt pulley
Dustproof cover 16 is additionally provided with 12 centre bore.
Embodiment 2：
As shown in Figs 1-4, a kind of automatic tensioner, including body 2, support plate 1, spring 3, belt pulley 12, axle bolt 14, axis
Hold 15, central axle sleeve 6.Body 2 is fixedly mounted on the top of support plate 1 by the effect of central axle sleeve 6.Belt pulley 12 passes through axis spiral shell
Bolt 14 is fixedly mounted on the bottom of support plate 1.Bearing 15 is installed in the centre bore of belt pulley 12.In the top either side of support plate 1
The first installation base 19 with center connecting hole 18 is provided with, is provided with and the described first peace in the top opposite side of support plate 1
The second installation base 20 that dress boss 19 corresponds.The spring 3 is sleeved on the first installation base 19.It is convex in the second installation
The periphery of platform 20 is provided with circular mounting groove, is pressed with wavy spring 8,9 and of antifriction panel seat successively in the circular mounting groove
Antifriction plate 10 is so that wavy spring 8 and antifriction panel seat 9 are sleeved on second installation base 20.Central axle sleeve 6 is placed in described
In center connecting hole 18.The wavy spring is circular configuration.The company of screwing is fixed in one end of central axle sleeve 6 with the antifriction plate 10
Connect, the other end is fixed to screw and is connected with the body 2.6 one end of central axle sleeve sequentially passes through the wavy spring 8, antifriction panel seat 9
Fix to screw with the antifriction plate 10 and be connected, the other end of central axle sleeve 6 is fixed to screw with body 2 to be connected.In the present embodiment
With embodiment 1 the difference is that being further sleeved with spring backing plate 4 on the first installation base 19.Spring backing plate 4 and spring 3 are at the same time
It is set with the first installation base 19.In addition, it is further sleeved with backing plate 7 on first installation base 19.Backing plate 7 at the same time with it is described
Spring 3 and spring backing plate 4 contact.In the present embodiment, backing plate 7 is made of engineering plastics, is specially wear-resistant plastic.In this reality
Apply in example, the quantity of the bearing 15 is two.
It is described in detail above in association with specific embodiment of the utility model, but is not the limit to the utility model
System, it is every that the utility model is belonged to any simple modification made for any of the above embodiments according to the technical essence of the utility model
Technical scope, it is also necessary to explanation is：Do not have all matters, big and small in embodiment lists associated components one by one, but not shadow
Ring understanding of the those skilled in the art to related art scheme.Category according to the technical solution of the utility model includes above-mentioned each
Any combination between part.
Claims (16)
1. a kind of automatic tensioner, including body, support plate, spring, belt pulley, axle bolt, bearing, central axle sleeve, the bearing
In the centre bore of belt pulley, it is characterised in that：The bottom of the support plate relative to the top of support plate to body lateral bend,
The first installation base with center connecting hole is set in the top either side of the support plate, in the top opposite side of the support plate
It is provided with the second installation base corresponded with first installation base；It is provided with the periphery of second installation base
Circular mounting groove, is pressed with wavy spring, antifriction panel seat and antifriction plate, described first successively in the circular mounting groove
Spring and spring backing plate are set with installation base at the same time；The outer circumferential walls of the central axle sleeve have radial flange, the footpath
It is overlapped on to flange in the top planes of first installation base；The periphery of the connecting hole of the body is provided with circle
The protrusion of shape structure, the protrusion are snapped onto on the radial flange and connect with the top planes of first installation base
Touch.
2. automatic tensioner as claimed in claim 1, it is characterised in that：The central axle sleeve is placed in the center connecting hole
Interior, central axle sleeve one end sequentially passes through the wavy spring, antifriction panel seat is fixed to screw and is connected with the antifriction plate, central axle sleeve
The other end and body fix to screw and be connected.
3. automatic tensioner as claimed in claim 1, it is characterised in that：The bottom of the support plate is provided with pedestal.
4. automatic tensioner as claimed in claim 3, it is characterised in that：Bearing is provided with the center of the pedestal
Pedestal.
5. automatic tensioner as claimed in claim 4, it is characterised in that：The bearing base has step circles, at described
The circle centre position of rank circle offers connecting hole.
6. automatic tensioner as claimed in claim 4, it is characterised in that：It is further opened with surrounding the bearing on the pedestal
The circular groove that pedestal is set.
7. automatic tensioner as claimed in claim 6, it is characterised in that：The pedestal has outwardly circular seal
Portion, the circular seal portion are in the periphery of the circular groove.
8. automatic tensioner as claimed in claim 1, it is characterised in that：It is provided with the center of the belt pulley radially recessed
Groove, is installed with baffle ring in the radial groove.
9. automatic tensioner as claimed in claim 1, it is characterised in that：The body is with the belt pulley at the same time in described
On the either side of support plate.
10. automatic tensioner as claimed in claim 1, it is characterised in that：The belt pulley is rotationally solid by axle bolt
Dingan County is on the pedestal of support plate.
11. automatic tensioner as claimed in claim 1, it is characterised in that：The axle bolt passes through bearing and the connecting hole
It is fixedly connected.
12. automatic tensioner as claimed in claim 1, it is characterised in that：The bearing is deep groove ball bearing.
13. automatic tensioner as claimed in claim 1, it is characterised in that：Pad is further sleeved with first installation base
Plate.
14. automatic tensioner as claimed in claim 13, it is characterised in that：The backing plate at the same time with the spring and spring pad
Plate contacts.
15. automatic tensioner as claimed in claim 2, it is characterised in that：Axle sleeve is further sleeved with the central axle sleeve.
16. automatic tensioner as claimed in claim 1, it is characterised in that：It is additionally provided with the centre bore of the belt pulley
Dustproof cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721091891.1U CN207229689U (en) | 2017-08-29 | 2017-08-29 | A kind of automatic tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721091891.1U CN207229689U (en) | 2017-08-29 | 2017-08-29 | A kind of automatic tensioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207229689U true CN207229689U (en) | 2018-04-13 |
Family
ID=61859559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721091891.1U Active CN207229689U (en) | 2017-08-29 | 2017-08-29 | A kind of automatic tensioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207229689U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930766A (en) * | 2018-08-14 | 2018-12-04 | 浙江瑞德利汽车部件有限公司 | A kind of wear-resistant high-intensitive motor air-conditioning train tensioning wheel |
| CN110630705A (en) * | 2018-06-22 | 2019-12-31 | 上海贝序汽车科技有限公司 | Belt tensioning wheel mechanism of automobile engine |
-
2017
- 2017-08-29 CN CN201721091891.1U patent/CN207229689U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630705A (en) * | 2018-06-22 | 2019-12-31 | 上海贝序汽车科技有限公司 | Belt tensioning wheel mechanism of automobile engine |
| CN108930766A (en) * | 2018-08-14 | 2018-12-04 | 浙江瑞德利汽车部件有限公司 | A kind of wear-resistant high-intensitive motor air-conditioning train tensioning wheel |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |