CN115451090A - Friction type accessory tensioner with symmetrical double damping systems - Google Patents

Friction type accessory tensioner with symmetrical double damping systems Download PDF

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Publication number
CN115451090A
CN115451090A CN202210814556.9A CN202210814556A CN115451090A CN 115451090 A CN115451090 A CN 115451090A CN 202210814556 A CN202210814556 A CN 202210814556A CN 115451090 A CN115451090 A CN 115451090A
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CN
China
Prior art keywords
damping
tensioning arm
stainless steel
steel gasket
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210814556.9A
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Chinese (zh)
Inventor
王文焕
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Alt Jiangsu Industrial Co ltd
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Alt Jiangsu Industrial Co ltd
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Publication date
Application filed by Alt Jiangsu Industrial Co ltd filed Critical Alt Jiangsu Industrial Co ltd
Priority to CN202210814556.9A priority Critical patent/CN115451090A/en
Publication of CN115451090A publication Critical patent/CN115451090A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B17/00—Methods preventing fouling
    • B08B17/02—Preventing deposition of fouling or of dust
    • B08B17/04—Preventing deposition of fouling or of dust by using removable coverings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/129—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon characterised by friction-damping means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
    • F16H7/0831—Means for varying tension of belts, ropes, or chains with vibration damping means of the dry friction type

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

The invention provides a friction type symmetrical double-damping system accessory tensioner, belonging to the tensioner field, comprising: a support; the mounting mechanism is arranged on the bracket; the double-damping mechanism is arranged on the bracket and the tensioning arm, and the belt pulley is fixedly connected to one end of the tensioning arm through a bolt; the damping ring and the damping bushing can be spliced by movably inserting the first boss into the first slot, when the tensioning arm and the damping bushing rotate relatively, friction force is generated, damping is formed, the swinging of the tensioning arm can be restrained, a second damping system is adopted, a double-damping system is formed, and the problem that only a single damping system is arranged in the tensioner in the prior art, so that the damping effect is poor can be solved.

Description

Friction type accessory tensioner with symmetrical double damping systems
Technical Field
The invention belongs to the field of tensioners, and particularly relates to a friction type accessory tensioner with a symmetrical double damping system.
Background
The automobile engine accessory wheel system drives various accessories through a belt, such as: generator, air condition compressor, water pump, booster pump etc..
In many automotive accessory systems, a constant tension is required to be provided to a belt, and for this reason, many tensioners with spring systems capable of providing tension have been proposed, but due to the large angular vibration of the crankshaft output, the accessory consumes a large amount of power, which causes abnormal belt vibration and slippage of various accessory pulleys, and the amplitude of the tensioner swing increases dramatically, and the fundamental reason is that damping systems, such as an engine damping disc and a generator one-way wheel, are required in the accessory train to effectively reduce the system vibration.
Currently, in an accessory system of an automobile, a constant tension is required to be provided to a belt, for this reason, a pulley is prevented from swinging during rotation, so that the pulley needs to be installed on a tensioner, thereby reducing the swinging of the pulley, and a single damping system is arranged in the existing tensioner, so that the damping effect is poor, so that a friction type symmetrical double-damping system accessory tensioner is required.
Disclosure of Invention
The invention aims to provide a friction type symmetrical double-damping system accessory tensioner, and aims to solve the problem that a single damping system is arranged in the tensioner in the prior art, so that the damping effect is poor.
In order to achieve the purpose, the invention provides the following technical scheme:
a friction symmetric dual damping system accessory tensioner comprising:
a support;
the mounting mechanism is arranged on the bracket;
a tensioning arm disposed on a mounting mechanism, the mounting mechanism configured to mount the tensioning arm;
the double damping mechanisms are arranged on the bracket and the tensioning arm and are used for inhibiting the swinging of the tensioning arm; and
and the belt pulley is fixedly connected to one end of the tensioning arm through a bolt.
As a preferred scheme of the present invention, the mounting mechanism includes a central rotating shaft and a self-lubricating bearing, the central rotating shaft is movably inserted into an inner hole of the bracket, the movable sleeve is disposed in an inner hole of the tensioning arm, the self-lubricating bearing is disposed on an upper portion of the central rotating shaft, and the self-lubricating bearing is disposed between the central rotating shaft and the tensioning arm.
As a preferable aspect of the present invention, the double damping mechanism includes a friction damping member, a support damping member, and a torque member, the friction damping member is disposed on the bracket, the support damping member is disposed on the bracket and the tensioner arm, and the torque member is disposed on the bracket and the tensioner arm.
As a preferable aspect of the present invention, the supporting damping component includes a second nylon friction plate, a first stainless steel gasket, a belleville spring, and a second stainless steel gasket, the second stainless steel gasket is movably sleeved on the central rotating shaft, the second stainless steel gasket is located between the bracket and the tensioning arm, the first stainless steel gasket is movably sleeved on the central rotating shaft, the first stainless steel gasket is located between the bracket and the tensioning arm, the second stainless steel gasket is located on the upper side of the bracket, the belleville spring is movably sleeved on the central rotating shaft, the belleville spring is located between the first stainless steel gasket and the second stainless steel gasket, the second nylon friction plate is movably sleeved on the central rotating shaft, and the second nylon friction plate is located between the tensioning arm and the first stainless steel gasket.
As a preferred scheme of the present invention, the friction damping component includes two damping rings, two damping bushes, two first slots, two damping ring slots, two first bosses, two L-shaped fixture blocks, and two second slots, the two second slots are both disposed at the top of the bracket and symmetrically disposed, the two L-shaped fixture blocks are movably inserted into the two second slots, the damping bushes are fixedly connected to the two L-shaped fixture blocks, the damping bushes are sleeved at the top of the bracket, the damping rings are movably inserted into the damping bushes, the two first slots are disposed at the upper end of the damping rings, the two first slots are symmetrically disposed, the two first bosses are fixedly connected to the inner wall of the damping bushes, the two first bosses are respectively movably inserted into the two first slots, the two damping ring slots are disposed, the two damping ring slots are both disposed at the bottom of the damping rings, the two damping ring slots are symmetrically disposed, and each L-shaped fixture block is fastened in each damping ring slot.
As a preferable scheme of the present invention, the torque component includes a spring, a first stopper and a second stopper, the first stopper is fixedly connected to the upper inner wall of the tensioning arm, the second stopper is fixedly connected to the top of the bracket, the spring is movably inserted into the damping ring, one end of the spring is clamped to the first stopper, and the other end of the spring is clamped to the second stopper.
As a preferred scheme of the present invention, an annular groove is formed at the top of the tensioning arm, a first nylon friction plate is movably sleeved on the circumferential surface of the central rotating shaft, and the first nylon friction plate is disposed in the annular groove.
The first nylon friction plate (11) and the first friction plate (12) are made of high-strength high-wear-resistance nylon materials or self-lubricating bearings.
As a preferable scheme of the present invention, a dust cover is sleeved on the bolt, and the dust cover is located between the bolt and the belt pulley.
As a preferred scheme of the present invention, two slots are formed at the bottom of the damping ring, the two slots are symmetrically arranged, and a projection is fixedly connected to the top of the bracket, and is movably inserted into each slot.
In a preferred embodiment of the present invention, the damping ring is made of steel, aluminum or high-strength nylon.
Compared with the prior art, the invention has the beneficial effects that:
1. in this scheme, set up in first stainless steel gasket and second stainless steel gasket through belleville spring, the deflection through belleville spring can provide the axial force, thereby there is positive pressure between messenger's tensioning arm and first nylon friction disc and the second nylon friction disc, when the tensioning arm produces relative rotation for first nylon friction disc and second nylon friction disc, can produce frictional force, thereby form the damping, restrain the swing of tensioning arm, peg graft in first slot through first boss activity, can splice damping ring and damping bush, when the tensioning arm has relative rotation with the damping bush, thereby produce frictional force, form the damping, can restrain the swing of tensioning arm.
2. In this scheme, can realize lubricating through self-lubricating bearing's setting, thereby reduce the friction between straining arm and the central rotating shaft, can play the plane supporting effect through the setting of first stainless steel gasket and second stainless steel gasket, set up between straining arm and first stainless steel gasket through second nylon friction disc, can play the plane and support and lubricated effect, thereby reduce the friction between straining arm and the first stainless steel gasket, thereby produce thrust through spring diameter grow, thrust through the spring can promote damping bush and straining arm contact, through first nylon friction disc and straining arm contact, can produce frictional force, between bolt and belt pulley through the shield, can play dustproof effect, play the guard action to the bearing in the belt pulley.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a perspective cross-sectional view of the present invention;
FIG. 2 is an exploded view of the spring and tensioner arm of the present invention;
FIG. 3 is an exploded view of the spring, tensioner arm and bracket of the present invention;
FIG. 4 is an exploded view of the damping mechanism of the present invention;
FIG. 5 is an exploded view of the damping mechanism and bracket of the present invention;
FIG. 6 is an exploded view in cross section of the tensioner arm, damping mechanism and bracket of the present invention;
fig. 7 is an exploded view of the present invention.
In the figure: 1. a support; 2. a central rotating shaft; 3. a damping ring; 4. a damping bushing; 5. a spring; 6. a tensioning arm; 7. a bolt; 8. a pulley; 9. a dust cover; 10. a self-lubricating bearing; 11. a first nylon friction plate; 12. a second nylon friction plate; 13. a first stainless steel gasket; 14. a belleville spring; 15. a second stainless steel gasket; 16. a first stopper; 17. an annular groove; 18. a first slot; 19. a damping ring groove; 20. a first boss; 21. an L-shaped fixture block; 22. a card slot; 23. a second slot; 24. a second bump; 25. a second stop.
Detailed Description
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.
Example 1
Referring to fig. 1-7, the technical solution provided by this embodiment is as follows:
a friction symmetric dual damping system accessory tensioner comprising:
a support 1;
the mounting mechanism is arranged on the bracket 1;
a tensioning arm 6 arranged on a mounting mechanism for mounting the tensioning arm 6;
the double damping mechanisms are arranged on the bracket 1 and the tensioning arm 6 and are used for inhibiting the swinging of the tensioning arm 6; and
pulley 8 fixedly attached to one end of tensioner arm 6 by bolt 7.
In the embodiment of the present invention, self-lubricating bearing sleeve 10 is disposed in the inner hole of tensioner arm 6, and tensioner arm 6 is configured to be connected to pulley 8, and is screwed to bracket 1 through bolt 7, so as to fix pulley 8.
Specifically, installation mechanism includes central pivot 2 and self-lubricating bearing 10, and central pivot 2 activity is pegged graft in the hole of support 1, and self-lubricating bearing cover 10 is located tensioning arm 6 downthehole, and self-lubricating bearing 10 sets up in the upper portion of central pivot 2, and self-lubricating bearing 10 is located between central pivot 2 and tensioning arm 6.
In the specific embodiment of the invention, the central rotating shaft 2 is movably inserted into an inner hole of the bracket 1, so that the tensioning arm 6 can be fixed, the device can be fixed on an engine through the arrangement of the bracket 1 and the central rotating shaft 2, and lubrication can be realized through the arrangement of the self-lubricating bearing 10, so that the friction between the tensioning arm 6 and the central rotating shaft 2 is reduced.
Specifically, the double-damping mechanism comprises a friction damping part, a support damping part and a torque part, wherein the friction damping part is arranged on the support 1, the support damping part is arranged on the support (1) and the tensioning arm (6), and the torque part is arranged on the support (1) and the tensioning arm (6). .
In a specific embodiment of the present invention, the dual damping mechanism comprises a frictional damping member provided on the bracket 1, a supporting damping member provided on the bracket 1 and the tensioner arm 6, and a torque member provided on the bracket 1 and the tensioner arm 6. Specifically, the supporting damping component comprises a second nylon friction plate 12, a first stainless steel gasket 13, a belleville spring 14 and a second stainless steel gasket 15, the second stainless steel gasket 15 is movably sleeved on the central rotating shaft 2, the second stainless steel gasket 15 is located between the support 1 and the tensioning arm 6, the first stainless steel gasket 13 is movably sleeved on the central rotating shaft 2, the first stainless steel gasket 13 is located between the support 1 and the tensioning arm 6, the second stainless steel gasket 15 is located on the upper side of the support 1, the belleville spring 14 is movably sleeved on the central rotating shaft 2, the belleville spring 14 is located between the first stainless steel gasket 13 and the second stainless steel gasket 15, the second nylon friction plate 12 is movably sleeved on the central rotating shaft 2, and the second nylon friction plate 12 is located between the tensioning arm 6 and the first stainless steel gasket 13.
In the embodiment of the present invention, a plane supporting effect can be achieved by the arrangement of the first stainless steel gasket 13 and the second stainless steel gasket 15, a plane supporting and lubricating effect can be achieved by the arrangement of the second nylon friction plate 12 between the tension arm 6 and the first stainless steel gasket 13, so as to reduce friction between the tension arm 6 and the first stainless steel gasket 13, an axial force can be provided by the deformation of the belleville spring 14 by the arrangement of the belleville spring 14 between the first stainless steel gasket 13 and the belleville spring 14, so that a positive pressure exists between the tension arm 6 and the first nylon friction plate 11 and the second nylon friction plate 12, and when the tension arm 6 rotates relative to the first nylon friction plate 11 and the second nylon friction plate 12, a friction force can be generated, so as to form a damping, and to suppress the swing of the tension arm 6.
Specifically, the friction damping component includes a damping ring 3, a damping bush 4, first slots 18, damping ring grooves 19, first bosses 20, L-shaped fixture blocks 21 and second slots 23, the second slots 23 are provided with two, the two second slots 23 are all opened at the top of the bracket 1, and the two second slots 23 are symmetrically arranged, the two L-shaped fixture blocks 21 are provided with two, each L-shaped fixture block 21 is movably inserted into each second slot 23, the damping bush 4 is fixedly connected to the two L-shaped fixture blocks 21, and the damping bush 4 is sleeved on the top of the bracket 1, the damping ring 3 is movably inserted into the damping bush 4, the two first slots 18 are opened at the upper end of the damping ring 3, the two first slots 18 are symmetrically arranged, the first bosses 20 are provided with two, the two first bosses 20 are fixedly connected to the inner wall of the damping bush 4, and the two first bosses 20 are movably inserted into the two first slots 18 respectively, the damping ring grooves 19 are provided with two damping ring grooves 19, the two damping ring grooves 19 are all opened at the bottom of the damping ring 3, and the two damping ring grooves 19 are symmetrically arranged, and each L-shaped fixture block 21 is clamped in each damping ring groove 19.
In the specific embodiment of the present invention, the second slot 23 is used to connect the L-shaped fixture block 21, the two L-shaped fixture blocks 21 are used to connect the damping bushing 4, the two L-shaped fixture blocks 21 are used to support the damping ring 3, and the first boss 20 is movably inserted into the first slot 18, so that the damping ring 3 and the damping bushing 4 can be spliced, and when the tensioning arm 6 and the damping bushing 4 rotate relatively, friction force is generated to form damping, and the swinging of the tensioning arm 6 can be restrained.
Specifically, the torque component comprises a spring 5, a first stop block 16 and a second stop block 25, the first stop block 16 is fixedly connected to the upper inner wall of the tensioning arm 6, the second stop block 25 is fixedly connected to the top of the support 1, the spring 5 is movably inserted into the damping ring 3, one end of the spring 5 is clamped on the first stop block 16, and the other end of the spring 5 is clamped on the second stop block 25.
In the embodiment of the present invention, the first stopper 16 and the second stopper 25 are respectively used for abutting against two ends of the spring 5, so that the diameter of the spring 5 is enlarged when the spring 5 is twisted, and the damping bush 4 can be pushed to contact with the tensioning arm 6 by the thrust of the spring 5 through the diameter enlargement of the spring 5 to generate the thrust.
Specifically, the top of the tensioning arm 6 is provided with an annular groove 17, a first nylon friction plate 11 is movably sleeved on the circumferential surface of the central rotating shaft 2, and the first nylon friction plate 11 is arranged in the annular groove 17.
Specifically, the first nylon friction plate and the first friction plate are made of high-strength and high-wear-resistance nylon materials or self-lubricating bearings.
In the embodiment of the present invention, the annular groove 17 is used to connect the first nylon friction plate 11, and the friction force can be generated by the contact of the first nylon friction plate 11 and the tensioning arm 6.
Specifically, the damping ring 3 is made of steel, aluminum or high-strength nylon.
Specifically, the bolt 7 is sleeved with a dust cover 9, and the dust cover 9 is located between the bolt 7 and the belt pulley 8.
In the embodiment of the invention, the dustproof cover 9 is arranged between the bolt 7 and the belt pulley 8, so that the dustproof effect can be achieved, and the bearing in the belt pulley can be protected.
Specifically, two clamping grooves 22 are formed in the bottom of the damping ring 3, the two clamping grooves 22 are symmetrically arranged, a convex block 24 is fixedly connected to the top of the bracket 1, and the convex block 24 is movably inserted into one clamping groove 22
In the embodiment of the present invention, the damping ring 3 is prevented from rotating by a protrusion 24 movably inserted into the slot 22.
Specifically, the damping ring 3 is made of steel, aluminum or high-strength nylon.
In the embodiment of the present invention, the damping ring 3 is made of steel, aluminum or high strength nylon.
The working principle or the working process of the accessory tensioner of the friction type symmetrical double-damping system provided by the invention is as follows: the belleville springs 14 are arranged between the first stainless steel gasket 13 and the second stainless steel gasket 15, axial force can be provided through deformation of the belleville springs 14, so that positive pressure exists between the tensioning arm 6 and the first nylon friction plate 11 and the second nylon friction plate 12, when the tensioning arm 6 rotates relative to the first nylon friction plate 11 and the second nylon friction plate 12, friction force can be generated, damping is formed, swing of the tensioning arm 6 is restrained, the damping ring 3 and the damping bush 4 can be spliced through the movable insertion of the first boss 20 in the first insertion groove 18, when the tensioning arm 6 rotates relative to the damping bush 4, friction force is generated, damping is formed, swing of the tensioning arm 6 can be restrained, and lubrication can be realized through the arrangement of the self-lubricating bearing 10, thereby reduce the friction between the tensioner arm 6 and the central rotating shaft 2, can play the plane support effect through the setting of first stainless steel gasket 13 and second stainless steel gasket 15, set up between the tensioner arm 6 and first stainless steel gasket 13 through second nylon friction disc 12, can play the plane and support and lubricated effect, thereby reduce the friction between the tensioner arm 6 and first stainless steel gasket 13, thereby produce thrust through the grow of spring 5 diameter, thrust through spring 5 can promote damping bush 4 and the contact of tensioner arm 6, contact through first nylon friction disc 11 and tensioner arm 6, can produce frictional force, through shield 9 between bolt 7 and belt pulley 8, can play dustproof effect, play the guard action to the bearing in the belt pulley.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. 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 (10)

1. A friction symmetric dual damping system accessory tensioner comprising:
a support (1);
the mounting mechanism is arranged on the bracket (1);
a tensioning arm (6) arranged on a mounting mechanism for mounting the tensioning arm (6);
the double damping mechanisms are arranged on the bracket (1) and the tensioning arm (6) and are used for inhibiting the swinging of the tensioning arm (6); and
and the belt pulley (8) is fixedly connected to one end of the tensioning arm (6) through a bolt (7).
2. A frictionally symmetric dual-damping-system accessory tensioner as claimed in claim 1, wherein: the mounting mechanism comprises a central rotating shaft (2) and a self-lubricating bearing (10), the central rotating shaft (2) is movably inserted into an inner hole of the support (1), the self-lubricating bearing (10) is movably sleeved in the inner hole of the tensioning arm (6), the self-lubricating bearing (10) is arranged on the upper portion of the central rotating shaft (2), and the self-lubricating bearing (10) is located between the central rotating shaft (2) and the tensioning arm (6).
3. A frictionally symmetric dual-damping-system accessory tensioner as claimed in claim 2, wherein: the double-damping mechanism comprises a friction damping part, a supporting damping part and a torque part, wherein the friction damping part is arranged on the support (1), the supporting damping part is arranged on the support (1) and the tensioning arm (6), and the torque part is arranged on the support (1) and the tensioning arm (6).
4. A frictionally symmetric dual-damping-system accessory tensioner according to claim 3, wherein: the supporting damping component comprises a second nylon friction plate (12), a first stainless steel gasket (13), a belleville spring (14) and a second stainless steel gasket (15), the second stainless steel gasket (15) is movably sleeved on the central rotating shaft (2), the second stainless steel gasket (15) is located between the support (1) and the tensioning arm (6), the first stainless steel gasket (13) is movably sleeved on the central rotating shaft (2), the first stainless steel gasket (13) is located between the support (1) and the tensioning arm (6), the second stainless steel gasket (15) is located on the upper side of the support (1), the belleville spring (14) is movably sleeved on the central rotating shaft (2), the belleville spring (14) is located between the first stainless steel gasket (13) and the second stainless steel gasket (15), the second nylon friction plate (12) is movably sleeved on the central rotating shaft (2), and the second nylon friction plate (12) is located between the tensioning arm (6) and the first stainless steel gasket (13).
5. The frictionally symmetric dual-damping-system accessory tensioner of claim 4, wherein: the friction damping part comprises a damping ring (3), a damping bush (4), first slots (18), damping ring grooves (19), a first boss (20), L-shaped fixture blocks (21) and second slots (23), the second slots (23) are provided with two damping ring grooves (19), two damping ring grooves (20), two damping bosses (19), two damping ring grooves (19) and two damping ring grooves (19) which are symmetrically arranged, the L-shaped fixture blocks (21) are provided with two damping bush blocks (4), each L-shaped fixture block (21) is movably inserted into each second slot (23), the damping bush (4) is fixedly connected onto the two L-shaped fixture blocks (21), the damping bush (4) is sleeved on the top of the bracket (1), the damping ring (3) is movably inserted into the damping bush (4), the upper end of the damping ring (3) is provided with the two first slots (18), the two first slots (18) are symmetrically arranged, the two damping bush blocks (20) are fixedly connected onto the inner wall of the damping bush (4), the two damping ring grooves (19) are symmetrically arranged on the bottom of the two damping ring grooves (19), and the two damping ring grooves (19) are symmetrically arranged, each L-shaped clamping block (21) is clamped in each damping ring groove (19).
6. The frictionally symmetric dual-damping-system accessory tensioner of claim 5, wherein: the torque part comprises a spring (5), a first stop block (16) and a second stop block (25), the first stop block (16) is fixedly connected to the upper inner wall of the tensioning arm (6), the second stop block (25) is fixedly connected to the top of the support (1), the spring (5) is movably inserted into the damping ring (3), one end of the spring (5) is clamped on the first stop block (16), and the other end of the spring (5) is clamped on the second stop block (25).
7. The accessory tensioner as claimed in claim 6, wherein the accessory tensioner comprises: ring channel (17) have been seted up at the top of tensioning arm (6), the movable sleeve is equipped with first nylon friction disc (11) on the circumference surface of central pivot (2), first nylon friction disc (11) set up in ring channel (17), first nylon friction disc (11), first friction disc (12) are high strength high wear resistance nylon material, or self-lubricating bearing.
8. The frictionally symmetric dual-damping-system accessory tensioner of claim 7, wherein: the belt pulley is characterized in that a dustproof cover (9) is sleeved on the bolt (7), and the dustproof cover (9) is located between the bolt (7) and the belt pulley (8).
9. The frictionally symmetric dual-damping-system accessory tensioner of claim 8, wherein: two clamping grooves (22) are formed in the bottom of the damping ring (3), the two clamping grooves (22) are symmetrically arranged, a convex block (24) is fixedly connected to the top of the support (1), and the convex block (24) is movably inserted into one clamping groove (22).
10. A frictionally symmetric dual-damping-system accessory tensioner as claimed in claim 9, wherein: the damping ring (3) is made of steel, aluminum or high-strength nylon.
CN202210814556.9A 2022-07-12 2022-07-12 Friction type accessory tensioner with symmetrical double damping systems Pending CN115451090A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210814556.9A CN115451090A (en) 2022-07-12 2022-07-12 Friction type accessory tensioner with symmetrical double damping systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210814556.9A CN115451090A (en) 2022-07-12 2022-07-12 Friction type accessory tensioner with symmetrical double damping systems

Publications (1)

Publication Number Publication Date
CN115451090A true CN115451090A (en) 2022-12-09

Family

ID=84297240

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210814556.9A Pending CN115451090A (en) 2022-07-12 2022-07-12 Friction type accessory tensioner with symmetrical double damping systems

Country Status (1)

Country Link
CN (1) CN115451090A (en)

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