CN116428323A - Novel tension system accessory tensioner - Google Patents
Novel tension system accessory tensioner Download PDFInfo
- Publication number
- CN116428323A CN116428323A CN202310279695.0A CN202310279695A CN116428323A CN 116428323 A CN116428323 A CN 116428323A CN 202310279695 A CN202310279695 A CN 202310279695A CN 116428323 A CN116428323 A CN 116428323A
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- China
- Prior art keywords
- tensioning arm
- steel sheet
- spring steel
- damping
- bolt
- 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
Links
- 238000013016 damping Methods 0.000 claims abstract description 66
- 229910000639 Spring steel Inorganic materials 0.000 claims abstract description 59
- 239000004677 Nylon Substances 0.000 claims abstract description 43
- 229920001778 nylon Polymers 0.000 claims abstract description 43
- 238000001746 injection moulding Methods 0.000 claims description 30
- 239000000428 dust Substances 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 17
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
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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
- F16H7/0829—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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- 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
- F16H2007/0802—Actuators for final output members
- F16H2007/0804—Leaf springs
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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
- F16H2007/0842—Mounting or support of tensioner
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention belongs to the technical field of tensioners, in particular to a novel tensioner for an accessory of a tension system, which comprises a bracket fixedly connected to an engine, wherein a central rotating shaft is arranged at the center of the inner side of the bracket, and a tensioning arm is fixedly connected to the central rotating shaft. According to the invention, the double damping systems are arranged in the tensioner, the first damping system is formed among the tensioning arm, the bolt, the injection-molded spring steel sheet and the bracket, the tension system formed among the tensioning arm and the injection-molded spring steel sheet is a novel tension and damping system, the tension is constant, the damping performance is excellent, the belleville spring, the nylon friction plate, the riveting sheet and the tensioning arm form the second damping system, and the damping of the tensioner is greatly improved due to the design of the double damping systems, so that the swinging of the tensioner can be effectively restrained, the shaking of a belt is restrained, the slipping of the system is also reduced, and the service life of the tensioner is effectively prolonged.
Description
Technical Field
The invention relates to the technical field of tensioners, in particular to a novel accessory tensioner of a tension system.
Background
The automobile engine accessory train system drives various accessories through a belt, such as: in many automobile accessory systems, a constant tension is required to be provided for a belt, so that many tensioners with spring systems capable of providing tension are proposed, the types of springs are many, such as torsion springs, thrust springs and vortex springs, meanwhile, due to the fact that angular vibration output by a crankshaft is large, the accessory consumes large power, abnormal vibration of the belt can be caused, slipping of each accessory belt pulley occurs, the swinging amplitude of the tensioners is suddenly increased, the root cause is that damping systems, such as an engine damping disc, a generator unidirectional wheel and the like, are required in the accessory wheel systems, and the damping systems can reduce the vibration effect of the systems, but due to the fact that the damping components are single in design, the engine damping disc and the generator unidirectional wheel are used for damping protection of the tensioner belt through single components and members, the damping effect is not good enough, and the performance and the service life of the tensioner cannot be ensured for a long time.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides the novel tension system accessory tensioner, the inner spring steel sheet is arranged in the tensioner, the inner spring steel sheet is compressed in the loading process of the tensioner to generate torque, and constant tension can be provided for a belt.
(II) technical scheme
The invention adopts the following technical scheme for realizing the purposes:
the novel tension system accessory tensioner comprises a bracket fixedly connected to an engine, wherein a central rotating shaft is arranged at the center of the inner side of the bracket, a tensioning arm is fixedly connected to the central rotating shaft, an injection molding spring steel sheet is arranged at the joint between the inner side of the tensioning arm and the bracket, the injection molding spring steel sheet is fixedly connected to the bracket through a bolt, the injection molding spring steel sheet is positioned at the inner side of a tensioning arm stop block, the injection molding spring steel sheet comprises a nylon lining ring fixedly connected to the bolt and an inner spring steel sheet positioned at the inner side of the nylon lining ring, and the nylon lining ring is in contact with the stop block at the inner side of the tensioning arm;
the novel damping device comprises a tensioning arm, a support, a nylon friction plate and a belleville spring, wherein the nylon friction plate is arranged between the tensioning arm and the support, the belleville spring is arranged between the tensioning arm and the damping plate, the damping plate is sleeved on a central rotating shaft, the nylon friction plate is arranged between the end face of the tensioning arm and the end face of the support, a riveting piece is arranged on the central rotating shaft, and one side of the riveting piece is fixedly connected with the damping plate.
Further, the support and the central rotating shaft are fixedly connected to the external engine through mounting bolts, and the support and the engine form a whole.
Further, a self-lubricating bearing is further arranged at the joint between the inner hole of the tensioning arm and the central rotating shaft.
Further, the tensioning arm is rotationally connected with a belt pulley, the belt pulley is screwed on the tensioning arm in a locking bolt mode, and a dust cover is fixedly connected between the belt pulley and the locking bolt.
Further, the support corresponds bolt department and has seted up the mounting hole with the bolt adaptation, the tip fixed connection of bolt is on the mounting hole of support.
Further, the nylon lining ring and the inner spring steel sheet are of arc structures, the end parts of the nylon lining ring corresponding to the inner spring steel sheet are provided with clamping grooves, the inner spring steel sheet is embedded and installed at the clamping grooves on the inner side of the nylon lining ring, one end part of the bolt is fixedly connected to the fixing hole of the nylon lining ring, and the nylon lining ring is rotationally connected with the bolt.
(III) beneficial effects
Compared with the prior art, the invention provides a novel tension system accessory tensioner, which comprises the following components
The beneficial effects are that:
according to the invention, the inner spring steel sheet is arranged in the tensioner, the inner spring steel sheet is compressed in the loading process of the tensioner to generate torque, and constant tension can be provided for the belt. The tension system is provided with the double damping system, the double damping system comprises a first damping system formed by injection molding of an inner spring steel sheet, a tensioning arm, a bolt and a shell, and a second damping system formed by a belleville spring, a damping sheet and a riveting sheet, the two damping systems are mutually coordinated, damping protection of the tension system is realized, damping effect can be ensured, a series of problems of slipping of accessory pulleys, reduction of vibration amplitude of the tensioner and the like can be effectively avoided, the service life of the tension system of the tensioner can be prolonged, the use effect is good, the tension system formed between the tensioning arm shell and the injection molding of the inner spring steel sheet is a novel tension system, the tension is stable, constant tension can be provided for a belt, effective operation of each accessory is ensured, the structure is simple, the cost is low, the elasticity of the injection molding of the inner spring steel sheet is good, the toughness is good, torque of the tensioner can be effectively formed, the injection molding of the inner spring steel sheet is formed by a nylon ring and the inner spring steel sheet, the damping toughness of the injection molding of the inner spring steel sheet is stronger, and the protection effect is better, wherein the inner spring is embedded inside the nylon liner ring, and the integral installation or the injection molding of the structure is convenient; the injection molding inner spring steel sheet, the bolt, the tensioning arm and the bracket form a first damping protection system, the damping protection effect is good, the tensioning arm, the belleville spring, the damping sheet and the riveting sheet form a second damping system, and the damping effect of the tensioner is greatly improved due to the design of the double damping systems, so that the swinging of the tensioner can be effectively restrained, the shaking of a belt is restrained, the slipping phenomenon of the system is reduced, and the problems of the existing tensioner that the damping part is single in design, the damping effect is not ideal and the service life is not long are solved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic view of the structure of the present invention when disassembled;
FIG. 4 is a schematic view of the structure of the bracket, injection molded spring steel sheet and tensioning arm of the present invention;
FIG. 5 is a schematic view of the structure of the bracket according to the present invention;
FIG. 6 is a schematic view of the structure of the bracket and the injection molded spring steel sheet of the present invention;
FIG. 7 is a schematic view of the structure of an injection molded spring steel sheet according to the present invention.
In the figure: 1. a belt pulley; 2. a dust cover; 3. a locking bolt; 4. a tensioning arm; 5. nylon friction plate; 6. a damping sheet; 7. riveting sheets; 8. a belleville spring; 9. self-lubricating bearings; 10. a central spindle; 11. a bracket; 12. injection molding of a spring steel sheet; 1201. nylon lining ring; 1202. an inner spring steel sheet; 13. a plug pin; 14. and (5) mounting holes.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
As shown in fig. 1, 2, 3, 4 and 7, a novel accessory tensioner for a tension system according to an embodiment of the present invention includes a bracket 11 fixedly connected to an engine, the bracket 11 is an assembly part of the tensioner, installation and protection of an inner part are achieved, a center rotating shaft 10 is installed at the center of the inner side of the bracket 11, the center rotating shaft 10 is used as a rotation center, and is die-cast with the bracket 11 to achieve rotation of a tension arm 4, it is noted that the center rotating shaft 10 is made of stainless steel, and the center rotating shaft 10 is fixedly connected with the tension arm 4 for tension control of a transmission belt, an injection-molded spring steel sheet 12 is installed at a connection part between the inner side of the tension arm 4 and the bracket 11, the injection-molded spring steel sheet 12 is compressed by rotation between the tension arm 4 and the bracket 11, so that a torque is generated, and a tension system is formed, the friction between the injection molding spring steel sheet 12 and the inner side surface of the stop block of the tensioning arm 4 generates friction force, plays a role in damping protection, reduces the shake of the tensioning arm 4, the injection molding spring steel sheet 12 is fixedly connected to the bracket 11 through the bolt 13, realizes the fixed connection of the injection molding spring steel sheet 12 on the bracket 11, forms a first damping system, the injection molding spring steel sheet 12 is installed in a bolt 13 mode, has good convenience and good stability, the injection molding spring steel sheet 12 is positioned on the inner side of the stop block of the tensioning arm 4, realizes the tension and damping effect of the tensioning arm 4, the injection molding spring steel sheet 12 comprises a nylon lining ring 1201 fixedly connected to the bolt 13 and an inner spring steel sheet 1202 positioned on the inner side of the nylon lining ring 1201, wherein the nylon lining ring 1201 is contacted with the stop block on the inner side of the tensioning arm 4, the cost is low, the injection-molded spring steel sheet 12 is composed of a nylon lining ring 1201 and an inner spring steel sheet 1202, the elasticity effect is good, the toughness is good, the nylon lining ring 1201 and the inner spring steel sheet 1202 are made of high-temperature-resistant friction-resistant nylon materials and spring steel through injection molding, and during production and processing, the materials are put into an injection mold and injection-molded through the mold;
the novel belt tensioner further comprises a nylon friction plate 5 arranged between the tensioning arm 4 and the support 11, a plane supporting lubrication function is achieved, friction between the tensioning arm 4 and the support 11 is reduced, protection is formed, and a belleville spring 8 is arranged between the tensioning arm 4 and the damping plate 6, the damping plate 6 is sleeved on the central rotating shaft 10, the friction plate 5 is arranged between the end face of the tensioning arm 4 and the end face of the support 11, the riveting piece 7 is arranged on the central rotating shaft 10, one side of the riveting piece 7 is fixedly connected with the damping plate 6, axial force is provided through deformation of the belleville spring 8, so that positive pressure exists between the damping plate 6 and the tensioning arm 4, the belleville spring 8 deforms when the riveting piece 7 is pressed into the central rotating shaft 10, large axial force is generated inside the tensioner, large positive pressure is generated between the tensioning arm 4 and the damping plate 6, and the riveting piece 7 also generate large friction force when the tensioning arm 4 rotates relative to the support 11, a second damping system is formed, swinging of the tensioning arm 4 can be effectively restrained, and the belt shake system is more stable.
As shown in fig. 1, in some embodiments, the bracket 11 and the central rotating shaft 10 are fixedly connected to an external engine by means of mounting bolts, and are fixed to the engine by means of the mounting bolts, so as to form the installation of the tensioner component, and the bracket 11 and the engine form a whole, so that the installation compactness is good.
As shown in fig. 1, in some embodiments, a self-lubricating bearing 9 is further arranged at the connection part between the inner hole of the tensioning arm 4 and the central rotating shaft 10, and the self-lubricating bearing 9 acts as self-lubricating function to reduce friction between the tensioning arm 4 and the central rotating shaft 10, so that the tensioning arm 4 rotates smoothly, and the tensioning arm 4 can rotate around the central rotating shaft 10 to tension a belt.
As shown in fig. 1, in some embodiments, a pulley 1 is rotatably connected to a tensioning arm 4, the pulley 1 is screwed on the tensioning arm 4 by adopting a locking bolt 3, the pulley 1 is installed and fixed, a dust cover 2 is fixedly connected between the pulley 1 and the locking bolt 3, the dust cover 2 can play a dust-proof role, and the protection effect is played on the pulley 1 and the locking bolt 3.
As shown in fig. 5 and 6, in some embodiments, a mounting hole 14 adapted to the latch 13 is formed at a position of the bracket 11 corresponding to the latch 13, an end of the latch 13 is fixedly connected to the mounting hole 14 of the bracket 11, and the mounting hole 14 is adapted to an end of the latch 13, so as to achieve a fixed mounting effect of the latch 13 on the bracket 11.
As shown in fig. 7, in some embodiments, the nylon gasket 1201 and the inner spring steel sheet 1202 are arc-shaped structures, so as to ensure the elastic effect of the nylon gasket 1201, and the ends of the nylon gasket 1201 corresponding to the inner spring steel sheet 1202 are provided with clamping grooves, the inner spring steel sheet 1202 is embedded and installed at the clamping grooves on the inner side of the nylon gasket 1201, so that the assembly between the nylon gasket 1201 and the inner spring steel sheet 1202 is realized, the convenience is good, the stability is good, the elastic deformation and the damping effect of the injection molding spring steel sheet 12 are ensured by double arrangement, the performance is good, and one end of the bolt 13 is fixedly connected to a fixing hole of the nylon gasket 1201, so that the fixed connection between the bolt 13 and the injection molding spring steel sheet 12 is realized, the nylon gasket 1201 is rotationally connected with the bolt 13, the nylon gasket 1201 can be conveniently rotated, and the inner spring steel sheet 1202 and the nylon gasket 1201 can be also be injection molded into a whole, so as to ensure the firm strength between the structures.
The working principle and the application steps of the invention are as follows: during assembly, the support 11 is fixed on an external engine in a mounting bolt mode, the central rotating shaft 10 is assembled at the center of the inner side of the support 11, the central rotating shaft 10 serves as a rotation center and is integrally cast with the support 11, the center of the tensioning arm 4 is fixedly connected to the central rotating shaft 10, the tensioning arm 4 can rotate relative to the support 11, the injection molding spring steel sheet 12 is mounted at the inner side of the support 11, the outer side of the injection molding spring steel sheet 12 is in contact with the inner side of a stop block in the tensioning arm 4, the injection molding spring steel sheet 12 is deformed through rotation between the tensioning arm 4 and the support 11, torque is generated, a tension system is formed, when the stop block of the tensioning arm 4 is twisted, positive pressure can be generated on the injection molding spring steel sheet 12, positive pressure is generated on the tensioning arm 4 through force transmissibility, friction force is generated when the tensioning arm 4 and the injection molding spring steel sheet 12 relatively rotate, a first damping system is formed, swing of the tensioning arm 4 can be restrained, meanwhile, the tensioning arm 4 rotates around the central rotating shaft 10, a tensioning belt is arranged, the nylon friction sheet 5 is in contact between the tensioning arm 4 and the support 11, a plane supporting lubrication function is realized, the butterfly spring 8 is in contact between the tensioning arm 6 and the tensioning sheet 6, the damping sheet 6 is deformed, and the damping sheet is restrained relative to the damping sheet 4 through the vibration damping sheet is formed, and the damping sheet is axially, the damping sheet 7 is deformed, and the damping sheet is well is formed, and the damping effect is opposite to the damping sheet is well when the damping sheet is formed, and the damping sheet 7 is in the damping effect is opposite to the damping sheet and the damping sheet is well and the damping sheet and has the damping effect.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a novel tension system annex tensioning ware, includes support (11) of fixed connection on the engine, its characterized in that: the center rotating shaft (10) is arranged at the center of the inner side of the support (11), the tensioning arm (4) is fixedly connected to the center rotating shaft (10), an injection molding spring steel sheet (12) is arranged at the joint between the inner side of the tensioning arm (4) and the support (11), the injection molding spring steel sheet (12) is fixedly connected to the support (11) through a bolt (13), the injection molding spring steel sheet (12) is positioned on the inner side of a stop block of the tensioning arm (4), the injection molding spring steel sheet (12) comprises a nylon lining ring (1201) fixedly connected to the bolt (13) and an inner spring steel sheet (1202) positioned on the inner side of the nylon lining ring (1201), and the nylon lining ring (1201) is contacted with the stop block on the inner side of the tensioning arm (4);
still including setting up nylon friction disc (5) between tensioning arm (4) and support (11) to and butterfly spring (8) between tensioning arm (4), damping fin (6), wherein, damping fin (6) cover is established on center pivot (10), nylon friction disc (5) are between the terminal surface of tensioning arm (4) and the terminal surface of support (11), be provided with riveting piece (7) on center pivot (10) to one side and damping fin (6) fixed connection of riveting piece (7).
2. A novel tension system accessory tensioner as claimed in claim 1, wherein: the bracket (11) and the central rotating shaft (10) are fixedly connected to an external engine in a mode of mounting bolts, and the bracket (11) and the engine form a whole.
3. A novel tension system accessory tensioner as claimed in claim 1, wherein: the connecting part between the inner hole of the tensioning arm (4) and the central rotating shaft (10) is also provided with a self-lubricating bearing (9).
4. A novel tension system accessory tensioner as claimed in claim 1, wherein: the tensioning arm (4) is rotationally connected with a belt pulley (1), the belt pulley (1) is screwed on the tensioning arm (4) by adopting a locking bolt (3), and a dust cover (2) is fixedly connected between the belt pulley (1) and the locking bolt (3).
5. A novel tension system accessory tensioner as claimed in claim 1, wherein: the mounting hole (14) matched with the bolt (13) is formed in the position, corresponding to the bolt (13), of the bracket (11), and the end part of the bolt (13) is fixedly connected to the mounting hole (14) of the bracket (11).
6. A novel tension system accessory tensioner as claimed in claim 1, wherein: the nylon lining ring (1201) and the inner spring steel sheet (1202) are of arc structures, clamping grooves are formed in the ends, corresponding to the inner spring steel sheet (1202), of the nylon lining ring (1201), the inner spring steel sheet (1202) is embedded and installed at the clamping grooves on the inner side of the nylon lining ring (1201), one end of the bolt (13) is fixedly connected to a fixing hole of the nylon lining ring (1201), and the nylon lining ring (1201) is connected with the bolt (13) in a rotating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310279695.0A CN116428323A (en) | 2023-03-21 | 2023-03-21 | Novel tension system accessory tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310279695.0A CN116428323A (en) | 2023-03-21 | 2023-03-21 | Novel tension system accessory tensioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116428323A true CN116428323A (en) | 2023-07-14 |
Family
ID=87091799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310279695.0A Pending CN116428323A (en) | 2023-03-21 | 2023-03-21 | Novel tension system accessory tensioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116428323A (en) |
-
2023
- 2023-03-21 CN CN202310279695.0A patent/CN116428323A/en active Pending
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