CN108194590A - Tensioning apparatus and its application for automobile belt transmission system - Google Patents
Tensioning apparatus and its application for automobile belt transmission system Download PDFInfo
- Publication number
- CN108194590A CN108194590A CN201611121162.6A CN201611121162A CN108194590A CN 108194590 A CN108194590 A CN 108194590A CN 201611121162 A CN201611121162 A CN 201611121162A CN 108194590 A CN108194590 A CN 108194590A
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- Prior art keywords
- guide rod
- tensioning apparatus
- spring seat
- rigidity
- guide pad
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- 238000004026 adhesive bonding Methods 0.000 claims description 4
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Classifications
-
- 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)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
One tensioning apparatus, for the stretcher of automobile engine belt drive system, including a upper spring seat, a lower spring cup, a rigidity guide rod, a damping buffering element, a helical spring and one first spacer pin.The rigidity guide rod setting is linked to the lower spring cup.The damping buffering element is placed on the rigidity guide rod and is installed between the upper spring seat and the lower spring cup.The helical spring is co-axially mounted between the upper spring seat and the lower spring cup, and with the rigidity guide rod and the damping buffering element.First spacer pin passes through the rigidity guide rod via the upper spring seat, and rigidity guide rod described in this way, which is limited in a certain range, carries out a linear reciprocal movement.
Description
Technical field
The present invention relates to a tensioning apparatus, more particularly, to one for automobile belt transmission system tensioning apparatus and its should
With wherein the tensioner design is used for the stretcher of automobile engine belt drive system, the tensioning apparatus respectively can
Around the shaft rotation being fixed on tensioner arm and engine body.The characteristics of tensioning apparatus is, by a rigid guide and
Linear reciprocal movement is realized in the cooperation of one guide pad, and appropriate damping is provided for the tensioning apparatus by a damping buffering component, with
And for the fracture suddenly of belt when preventing the belt drive system from operating or slip, the tensioning apparatus loses pressure suddenly and scatters,
Parts separation, which flies out, to be damaged, and the tensioning apparatus also has one stroke limiting mechanism.
Background technology
With the continuous development of auto industry, people’s lives custom can not be detached from convenience caused by automobile,
People also constantly improve each parts and part of automobile simultaneously, reach and more preferably change.And the present invention primarily directed in
The tensioning apparatus of automobile belt transmission system is improved.For the tensioning apparatus of automobile belt transmission system, main purpose
It is the appropriate tension for making belt in transmission system, the variation caused by tension or abrasion of compensation belt and decays due to hair
The swing of tensioner arm caused by the motivation fluctuation of speed so as to avoid belt slippage, noise and vibration, allows system normally effective work
Make.Meanwhile the structure of tensioning apparatus answers safe enough, i.e., when belt during operating for some reason suddenly fracture or
During slippage, uncontrollable disengaging movement will not occur between helical spring and spring base, so tensioning apparatus should have reasonably
The function of travel limit.
Tensioning apparatus according to 8043180 B2 linear actions of US is by one and the coaxial mounted metal guide rod of helical spring
To carry out travel limit to tensioning apparatus.Its principle is, metal is realized by a pilot sleeve for being installed on lower spring cup
The linear guide of guide rod, the both ends of metal guide rod are respectively there are one 90 ° of turning, under the spacer pin and metal guide rod in lower spring cup
The displacement limitation to tensioning apparatus is consequently formed in the top at lower 90 ° of turnings in 90 ° of turning arranged crosswises.The turning of upper end and one
A embedded unit in upper spring seat is connected, which can rotate around metal guide rod.When tensioning apparatus is compressed to
During most short position, embedded unit is rotated, embedded unit drives metal guide rod to rotate by upper 90 ° of turnings for being inserted, when turning
When angle reaches 90 °, the axial displacement of the lower 90 ° of turnings limitation steel wire rope of steel wire rope is blocked in the bottom of pilot sleeve, is formed pair with this
Tensioning apparatus is limited in the displacement of end position.
But the tensioning apparatus tensioning apparatus in 8043180 B2 linear actions of US has a disadvantage that：1. metal guide rod
Size is limited, and diameter cannot be made very big, therefore metal causes guide rod flexibility in contrast bigger, so metal guide rod
Rigid guiding cannot be provided well；2. when tensioning apparatus is compressed to most short position, helical spring is loaded down simultaneously, metal
Guide rod rotation is difficult；3. due to the too thin rotary motion that cannot limit lower 90 ° of turnings well of the wall thickness of pilot sleeve, therefore
There is the risk of failure in the limiting device of most short position；4. tensioning apparatus does not have damper assembly, it is impossible to the pendulum for tensioner arm of decaying
It is dynamic；5. tensioning apparatus part is more complicated, production cost is high, and assembling is difficult.
In addition, stretcher now is generally only the tensioning sprung back by the torsional deformation of spring to be supplied to belt enough
Power since the resilience of spring is strong, in engine drastically acceleration or deceleration, can cause stretcher belt wheel and belt tension
The followability of deformation is poor during relaxation, phenomena such as being supplied to belt tension unstable, being susceptible to skidding, abnormal sound occurs, causes
Being driven moment failure or transmission efficiency reduces.
Invention content
It is a primary object of the present invention to provide a tensioning apparatus for automobile belt transmission system, wherein by reasonable
Guiding mechanism, damping mechanism and the spacing protecting mechanism of tensioning apparatus are designed, tensioning apparatus can realize rigid reciprocating motion, attenuation
The vibration of tensioner arm and reliable displacement limitation, and the cost of tensioning apparatus processing and manufacturing is relatively low, transport and install also more just
Profit.
Another object of the present invention is to provide a tensioning apparatus for automobile belt transmission system, wherein the tensioning
Device be designed for automobile engine belt drive system stretcher, the tensioning apparatus respectively can around be fixed on tensioner arm and
Shaft rotation on engine body, for belt drive system is made to can provide better efficiency, and and then avoids belt from beating
Sliding, noise and vibration.
Another object of the present invention is to provide a tensioning apparatus for automobile belt transmission system, wherein a rigidity is led
Linear steering is realized in the cooperation of bar and a guide pad.
Another object of the present invention is to provide a tensioning apparatus for automobile belt transmission system, wherein a damping is slow
It rushes component and provides appropriate damping and for the fracture suddenly of belt when preventing the belt drive system from operating or sliding for the tensioning apparatus
When de-, tensioning apparatus loses pressure suddenly and scatters, and parts separation, which flies out, to be damaged.
Another object of the present invention is to provide a tensioning apparatus for automobile belt transmission system, wherein the tensioning
Device also has one stroke limiting mechanism, i.e., described spacing protecting mechanism, for providing reliable displacement limitation.Particularly, institute
The installation and removal of the tensioning apparatus can also be helped by stating stroke limiter.
Another object of the present invention is to provide a tensioning apparatus for automobile belt transmission system, wherein the tensioning
Device includes a upper spring seat, a helical spring, a damping buffering component, a lower spring cup, one first spacer pin and a steel
Property guide rod, wherein the rigidity guide rod and the helical spring be coaxially installed on the upper spring seat and the lower spring cup it
Between, and the rigidity guide rod is controlled to be carried out in a certain range linearly back and forth with the helical spring through first spacer pin
Movement, wherein the damping buffering component is set between the helical spring and the rigidity guide rod, to provide vibration reduction and cushioning
Effect.
Another object of the present invention is to provide a tensioning apparatus for automobile belt transmission system, wherein the tensioning
Apparatus structure is simple, cheap, is capable of providing the facility of effective travel limit and transport installation.Wherein especially and stroke
Related mechanism is limited, by adding the rigid guide on the existing lower spring cup, one being processed on upper spring seat
Go out on pin hole and one round boss and be equipped with first spacer pin and simple and reliable travel limit can be realized.It compares and US
The cooperation of the metal guide rod at two 90 ° of angles in the same direction employed in 8043180 B2 and embedded unit and pilot sleeve, is not only tied
Structure is simple, at low cost, and guiding is more linear, and limiting device is also more reliable.
Another object of the present invention is to provide a tensioning apparatus for automobile belt transmission system, wherein the tensioning
The rigid guide of the straight skidding component of device and the lower spring cup are integrated, this causes the knot of the tensioning apparatus
Structure is more compact, while is also more convenient for installing.It is not one relative to the metal guide rod in 8043180 B2 of US and lower spring cup
, which causes complicated, and difficult to install, and due to the limitation of mechanism, metal guide rod cannot be made very thick, therefore metal
Guide rod is flexible big, it is impossible to which rigidity is oriented to well.However, the rigid guide bending that the tensioning apparatus of the present invention uses
Rigidity is big, can carry out linear reciprocal movement well.
Another object of the present invention is to provide a tensioning apparatus for automobile belt transmission system, wherein through second
The tensioning apparatus can be compressed to most short position by spacer pin.It further says, passes through first spacer pin and the rigidity
Guide rod cooperation can be such that the displacement of the tensioning apparatus is reliably limited, and be led by second spacer pin with the rigidity
Bar and upper spring seat cooperation, can make the tensioning apparatus be compressed into most short position, i.e., described helical spring and the resistance
Buddhist nun's Buffer Unit is all compressed into most short position.
Another object of the present invention is to provide a tensioning apparatus for automobile belt transmission system, wherein described second
Spacer pin can easily be plugged very much by human hand.That is, the tensioning apparatus can be easily controlled most short
Position is moving back and forth position.However, when being compressed to most short position relative to the tensioning apparatus in 8043180 B2 of US,
Under the loading of helical spring, metal guide rod rotation is difficult, needs to be limited tensioning apparatus by additional equipment.And due to
The too thin rotary motion that cannot limit lower 90 ° of turnings well of the wall thickness of the pilot sleeve of 8043180 B2 of US, therefore in most short position
There is the risk of failure in the limiting device put.
Another object of the present invention is to provide a tensioning apparatus for automobile belt transmission system, wherein the tensioning
Device has the function of damping vibration attenuation, by the damping buffering component being mounted between the upper lower spring cup, in the stretcher
During normal work, the helical spring is constantly compressed and is restored, the damping buffering component also on described lower spring cup it
Between constantly compression and restore, and due to the characteristic of the damping buffering component, the process of loading and unloading is made to generate energy damage
It loses, thus generates damping.
Another object of the present invention is to provide a tensioning apparatus for automobile belt transmission system, wherein the tensioning
Device further includes a guide pad, is installed in the upper spring seat, to realize the guide pad of longitudinal guiding part and institute
It states upper spring seat and is established as two independent components, greatly simplify the manufacture of the upper spring seat in this way.Particularly, institute
Different materials can be selected by stating both guide pad and the upper spring seat, such as the former optional plastics, the optional aluminium of the latter or steel
Deng.The rigidity guide rod is made to be run in the guide pad via such collocation more steady, can also be effectively reduced described
The noise of tensioning apparatus and abrasion.
Another object of the present invention is to provide a tensioning apparatus for automobile belt transmission system, wherein reasonably setting
The fixed and positioned of the upper spring seat and the guide pad is counted, makes rigidity guide rod even running in the guide pad.
The guide pad and the rigidity guide rod can select two kinds of appropriate materials, such as plastics and steel respectively, such to be collocated with
Help reduce noise and reduce to wear.In addition, the rigidity guide rod should have certain bending stiffness, to ensure in the tensioning
In device compression and the course of work upheld, the rigidity guide rod can carry out linear reciprocal fortune under the guiding of the guide pad
It moves without deforming.
Another object of the present invention is to provide a tensioning apparatus for automobile belt transmission system, wherein the guiding
Block should form certain shape cooperation in the upper spring seat, therefore the guide pad is designed as polyhedron, longitudinal cross-section
The shape polygon small for both ends broad in the middle.Correspondingly, there is a profiling guide pad slot on the upper spring seat, shape expires
The sufficient interference fit requirement with the guide pad.Such shape design, the profiling guide pad slot is embedded in the guide pad
When, left wall, right wall and the lower wall of the guide pad coordinate respectively with the left wall, right wall and lower wall of the profiling guide pad slot, with
Limit the linear movement and rotary motion of the guide pad multiple directions.
Another object of the present invention is to provide a tensioning apparatus for automobile belt transmission system, wherein in order to prevent
Uncontrollable disengaging movement occurs between the helical spring and the upper spring seat and the lower spring cup, therefore, the present invention
At least one insurance limiting device is provided.The safety device spacer pin passes through the upper spring seat and the rigidity guide rod, to hold
The axial force on the rigidity guide rod is acted on, and formed to the upper spring seat and the lower bullet by the helical spring with this
The relative displacement limitation of spring abutment.
Another object of the present invention is to provide a tensioning apparatus for automobile belt transmission system, wherein for the ease of
Transport and installation, the tensioning apparatus can continue to be compressed to most short position to be limited by second spacer pin, wherein for ease of institute
Plug when stating the second spacer pin in action, the spacer pin may be designed as L-type.
In order to reach object above, the present invention provides a tensioning apparatus, for automobile engine belt drive system
Stretcher, which is characterized in that including：
One upper spring seat has connecting hole on one；
One lower spring cup has connecting hole, wherein the upper connecting hole and the lower connecting hole be respectively used to around
The bolt rotation being fixed on tensioner arm or engine；
One rigidity guide rod, setting are linked to the lower spring cup；
One damping buffering component, under being placed on the rigidity guide rod and being installed in the upper spring seat and is described
Between spring base；
One helical spring, between the upper spring seat and the lower spring cup, and with the rigidity guide rod and institute
Damping buffering component is stated to be co-axially mounted；And
One first spacer pin passes through the rigidity guide rod via the upper spring seat, and rigidity guide rod described in this way is limited
System carries out a linear reciprocal movement in a certain range.
According to a preferred embodiment of the present invention, wherein the rigidity guide rod and the lower spring cup are integrated, with
So that the more compact structure of the tensioning apparatus, while be also more convenient for installing.
According to a preferred embodiment of the present invention, wherein the upper spring seat goes out pin hole including one, through described
The ontology of upper spring abutment；The rigidity guide rod includes a limiting slot, is located away from one end of the lower spring cup, and in slot hole
Shape, in this way when first spacer pin is also cross the limit for going out pin hole and the rigidity guide rod described in the upper spring seat
During the slot of position, first spacer pin and the limiting slot can form the rigidity guide rod limitation of axial movement, from
And realize the limiting to the tensioning apparatus.
According to a preferred embodiment of the present invention, wherein the length dimension distance of the limiting slot is that the rigidity is led
The axial movement of bar.
According to a preferred embodiment of the present invention, wherein first spacer pin is located at the limit of the rigidity guide rod
During the top of position slot, the distance between the lower spring cup and the upper spring seat are maximum, and the helical spring is in and restores
State, the damping buffering component are in free state or mild compression state；First spacer pin, which is located at the rigidity, leads
During the bottom end of the limiting slot of bar, the distance between the lower spring cup and the upper spring seat are minimum, and the spiral bullet
Spring is in most compressed state.
According to a preferred embodiment of the present invention, wherein first spacer pin passes through the limit of the rigidity guide rod
During the slot of position, to go out in pin hole described in the mode of the interference fixed insertion upper spring seat.
According to a preferred embodiment of the present invention, wherein the upper spring seat includes on one round boss and one
Rank wherein the upper round boss is extended downwardly from the lower face of the upper spring seat, and makes the upper round boss and described
The step is formed between the lower face of upper spring seat.
According to a preferred embodiment of the present invention, wherein the lower spring cup includes lower round boss and a flange,
Wherein described lower round boss is upwardly extended from the upper surface of the lower spring cup, and makes the lower round boss and the lower bullet
The upper surface of spring abutment forms the flange, is connected wherein the lower round boss is located at the lower spring cup with the rigidity guide rod
The position connect.
According to a preferred embodiment of the present invention, wherein the helical spring both ends are sleeved on the upper round boss and institute
Lower round boss outer end is stated, and the upper end of the helical spring is mounted on the step of the upper spring seat, the spiral
The lower end of spring is mounted on the flange of the lower spring cup, to prevent the helical spring from radial motion occurs.
According to a preferred embodiment of the present invention, it including a guide pad, is used to be set to the upper spring seat,
Wherein described rigidity guide rod passes through the guide pad, and goes out as described in first spacer pin also cross the upper spring seat
The limiting slot of pin hole and the rigidity guide rod, so that first spacer pin, which forms the rigidity guide rod, is axially moved model
The limitation enclosed.
According to a preferred embodiment of the present invention, wherein the upper spring seat has a profiling guide pad slot, shape
Need to be identical with the shape of the guide pad, for accommodating the guide pad.
According to a preferred embodiment of the present invention, wherein the guide pad has a left wall and one upper wall of a right wall and one
Lower wall and an antetheca and a rear wall shape are using a longitudinal section shape axial symmetry polyhedron small as both ends broad in the middle.
According to a preferred embodiment of the present invention, wherein the profiling guide pad slot has a guide pad slot left wall, one
Guide pad slot right wall and a guide pad slot lower wall form a polygonal grooves, guide pad described so under the effect of external force, with
The mode of interference is installed on the profiling guide pad slot of the upper spring seat, wherein the left wall of the guide pad and described
Right wall coordinates with the guide pad slot left wall and the guide pad slot right wall, the lower wall and the guide pad of the guide pad
Slot lower wall coordinates, to limit the linear fortune of the guide pad multiple directions through the profiling guide pad slot of the upper spring seat
Dynamic and rotary motion.
According to a preferred embodiment of the present invention, wherein the guide pad has a profiling guiding groove, along described
The direction of rigidity guide rod movement forms in the ontology of the guide pad, wherein the shape of the profiling guiding groove of the guide pad
Meet the requirement with the rigidity guide rod clearance fit.
According to a preferred embodiment of the present invention, wherein the guide pad has a through-hole, from the guide pad
The rear wall of the antetheca to the guide pad runs through the ontology of the guide pad, wherein the through-hole is in the guide pad
Cross sectional shape between two walls of the lower wall of the upper wall and the guide pad is rectangle.
According to a preferred embodiment of the present invention, it including one second spacer pin, is removably located on described
Spring base, and across the rigidity guide rod, the linear reciprocal movement is carried out to limit the rigidity guide rod.
According to a preferred embodiment of the present invention, it including one second spacer pin, is removably located on described
Spring base, and the limiting slot of the rigidity guide rod is passed through, the linear reciprocal movement is carried out to limit the rigidity guide rod,
At this moment the tensioning apparatus is then to be compressed to a most short position, and when the second spacer pin disengaging upper spring seat, then described
Tensioning apparatus then moves back and forth position in one, and stroke, which is appointed, is limited to the first spacer pin.
According to a preferred embodiment of the present invention, wherein the guide pad is implemented as plastic material or hardness is different from
The material of the rigidity guide rod.
According to a preferred embodiment of the present invention, wherein the lower spring cup is implemented as aluminium or steel equal strength is more described
The big material of guide pad.
According to a preferred embodiment of the present invention, wherein the rigidity guide rod is implemented as steel, iron or metal alloy etc.
The big material of the intensity guide pad.
According to a preferred embodiment of the present invention, wherein the upper spring seat includes two raised steps, from described
Spring base extends outwardly and is formed coplanar, and two raised steps form a horizontal plane and one vertical in the upper spring seat
Face.
According to a preferred embodiment of the present invention, wherein the upper spring seat includes a U-shaped groove, two institutes are formed in
It states at the horizontal plane and the vertical plane intersection of raised step, and by described horizontal towards prolonging inside the upper spring seat
It stretches, wherein the U-shaped groove is used to that second spacer pin to be set to limit radially sliding for second spacer pin.
According to a preferred embodiment of the present invention, it is recessed along the U-shaped wherein the upper spring seat includes one grade of wall
The direction of slot is set to end, for confirming and limiting the travel position of second spacer pin.
According to a preferred embodiment of the present invention, it is described convex from two wherein the upper spring seat includes an extension slot
Go out step to upwardly extend in the horizontal plane that the upper spring seat is formed, and pass through U-shaped groove connecting hole on described
Lower section form a groove, for accommodating the rigidity guide rod for carrying out the linear reciprocal movement.
According to a preferred embodiment of the present invention, wherein second spacer pin is implemented as L-type.
According to a preferred embodiment of the present invention, wherein the damping buffering component is installed in the upper spring seat
Between the upper round boss and the lower round boss of the lower spring cup.
According to a preferred embodiment of the present invention, wherein the damping buffering component is as made by elastic material.
According to a preferred embodiment of the present invention, wherein the damping buffering component has a profiling guide rod through-hole,
Axially run through the ontology of the damping buffering component, for coordinating with the rigidity guide rod, in this way in the tensioning apparatus
In running, the compression and recovery of the damping buffering component can generate elastic hysteresis damping.
According to a preferred embodiment of the present invention, wherein the damping buffering component includes multiple annular grooves, therebetween
Be surrounded on the ontology of the damping buffering component every ground, damping buffering component described in this way in start, the annular groove
Part can make the damping buffering component compress or restore deformation, and then generate hysteretic damping, and the pendulum for the tensioner arm of decaying
It is dynamic.
In order to reach object above, the present invention provides the manufacture assemble method of a tensioning apparatus, which is characterized in that packaging is such as
Lower step：
(a) a rigidity guide rod and a lower spring cup are integrated；
(b) guide pad is set to a upper spring seat；
(c) a damping buffering component and a helical spring be coaxially mounted on the upper spring seat and the lower spring cup it
Between；
(d) one first spacer pin is also cross the upper spring seat and the rigidity guide rod；And
(f) one second spacer pin passes through the rigidity guide rod from the upper spring seat, so that the tensioning apparatus is as one
Most short position.
According to a preferred embodiment of the present invention, wherein according to step (a), the rigidity guide rod and the lower spring cup
It is integrated, it is to become one through tight friction fit.
According to a preferred embodiment of the present invention, wherein according to step (a), the rigidity guide rod and the lower spring cup
It is integrated, it is to become one through gluing.
According to a preferred embodiment of the present invention, wherein according to step (a), the rigidity guide rod and the lower spring cup
It is integrated, it is to combine to become one through structure.
According to a preferred embodiment of the present invention, wherein according to step (a), the rigidity guide rod and the lower spring cup
It is integrated, become one by integrally formed production method.
According to a preferred embodiment of the present invention, wherein according to step (b), the upper spring seat, which includes a profiling, leads
To block slot, there is a guide pad slot left wall, a guide pad slot right wall and a guide pad slot lower wall to form a polygonal grooves
It goes to accommodate the guide pad.
According to a preferred embodiment of the present invention, wherein the guide pad is by a left wall and a right wall, a upper wall and one
Lower wall and an antetheca and a rear wall form an axial symmetry polyhedron, and polygon small for both ends broad in the middle of longitudinal section shape
Shape, when guide pad described in this way is placed on the profiling guide pad slot of the upper spring seat, the left side of the guide pad
Wall and the right wall coordinate with the guide pad slot left wall and the guide pad slot right wall, the lower wall of the guide pad and institute
The cooperation of guide pad slot lower wall is stated, so that the profiling guide pad slot of the upper spring seat limits the guide pad multiple directions
Linear movement and rotary motion.
According to a preferred embodiment of the present invention, wherein according to step (c), it is axial that the damping buffering component includes one
Ground is through a profiling guide rod through-hole of its ontology and the multiple annular grooves for being surrounded on its ontology, damping buffering component described in this way
It is installed on the rigidity guide rod through the profiling guide rod through-hole, and multiple annular grooves can make the damping buffering group
Part provides the effect of restoring and compressing, and then generates damping.
According to a preferred embodiment of the present invention, wherein according to step (d), the rigidity guide rod includes a limiting slot,
The upper spring seat goes out pin hole including one, goes out pin hole also cross described in the upper spring seat in first spacer pin in this way
During with the limiting slot of the rigidity guide rod so that first spacer pin forms axial movement to the rigidity guide rod
Limitation.
According to a preferred embodiment of the present invention, wherein according to step (d), the rigidity guide rod together beginning position and
One terminal position moves, and displacement distance is the length dimension of the limiting slot of the rigidity guide rod.
According to a preferred embodiment of the present invention, wherein rigidity guide rod movement is gone so that the first limiting pins position
When the top of the limiting slot of the rigidity guide rod, then the rigidity guide rod is located at the initial position, while the spiral shell
Rotation spring is in minimal compression, and the damping buffering component is in free state or mild compression.
According to a preferred embodiment of the present invention, wherein rigidity guide rod movement is gone so that the first limiting pins position
When the bottom end of the limiting slot of the rigidity guide rod, then the rigidity guide rod is located at the terminal position, while the spiral shell
It revolves spring and the damping buffering component and is all in most compressed state.
According to a preferred embodiment of the present invention, wherein according to step (d), wherein to being installed on the upper spring seat
Between the lower spring cup the helical spring loading after, first spacer pin out of described upper spring seat described in
Go out the side press-in of pin hole, across after the limiting slot on the rigidity guide rod, the opposite side of pin hole is gone out described in press-in, with shape
The limitation of the pairs of rigidity guide rod axial movement, so as to fulfill the limiting to the tensioning apparatus.
According to a preferred embodiment of the present invention, wherein according to step (f), the lower spring cup and it is described on spring
When seat is compressed, second spacer pin is passed through into the rigidity guide rod from the upper spring seat.
According to a preferred embodiment of the present invention, wherein according to step (f), the upper spring seat includes a U-shaped groove
With two raised steps, the both ends of second spacer pin are respectively supported in two raised steps, and by the U-shaped groove institute
It accommodates, therefore the U-shaped groove of the upper spring seat limits radial direction of second spacer pin relative to the rigidity guide rod
It slides.
According to a preferred embodiment of the present invention, wherein according to step (f), second spacer pin may be designed as L-type.
In order to reach object above, the present invention provides the compound formulation of a tensioning apparatus, which is characterized in that the following step of packaging
Suddenly：
(a1) upper spring seat is connected with tensioner arm；
(b1) lower spring cup is connected with engine body；And
(c1) one second spacer pin is discharged.
According to a preferred embodiment of the present invention, wherein according to step (a1), the upper spring seat has to be connected on one
Hole is used to be connected with tensioner arm.
According to a preferred embodiment of the present invention, wherein according to step (b1), the lower spring cup, which has, to be connected
Hole is used to be connected with the engine body.
According to a preferred embodiment of the present invention, wherein according to step (c1), second spacer pin is located on described
Spring base, for limiting so that the lower spring cup is remained stationary as with the upper spring seat, when second spacer pin is from described
When upper spring seat is detached from, the lower spring cup can carry out axial recovery campaign with the upper spring seat.
By the understanding to subsequent description and attached drawing, further aim of the present invention and advantage will be fully demonstrated.
These and other objects, feature and the advantage of the present invention, by following detailed descriptions, drawings and claims obtain
To fully demonstrate.
Description of the drawings
Fig. 1 is master of one according to a preferred embodiment of the present invention for the tensioning apparatus of automobile belt transmission system
View.
Fig. 2 is one according to a preferred embodiment of the present invention for the vertical of the tensioning apparatus of automobile belt transmission system
Cross section view.
Fig. 3 is one according to a preferred embodiment of the present invention for the vertical of the tensioning apparatus of automobile belt transmission system
Cross section view illustrates the longitudinal section view of the tensioning apparatus to be turn 90 degrees relative to Fig. 2.
Fig. 4 is the leading for the tensioning apparatus of automobile belt transmission system of one according to a preferred embodiment of the present invention
To block and the explosive view of upper spring seat.
Fig. 5 is master of one according to a preferred embodiment of the present invention for the tensioning apparatus of automobile belt transmission system
View illustrates rigidity guide rod is fixed on terminal position by the second spacer pin, its tensioning apparatus is made to be in compressive state.
Fig. 6 is one according to a preferred embodiment of the present invention for the vertical of the tensioning apparatus of automobile belt transmission system
Cross section view, relative to Fig. 5.
Fig. 7 is one according to a preferred embodiment of the present invention for the quick-fried of the tensioning apparatus of automobile belt transmission system
Fried figure.
Fig. 8 a to 8c are that one according to a preferred embodiment of the present invention fills for the tensioning of automobile belt transmission system
The front view of damping buffering component, positive view and the lower view put.
Specific embodiment
It is described below to disclose the present invention so that those skilled in the art can realize the present invention.It is excellent in being described below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.It defines in the following description
The present invention basic principle can be applied to other embodiments, deformation scheme, improvement project, equivalent program and do not carry on the back
Other technologies scheme from the spirit and scope of the present invention.
It will be understood by those skilled in the art that the present invention exposure in, term " longitudinal direction ", " transverse direction ", " on ",
" under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", the orientation of the instructions such as " outer " or position close
System is based on orientation shown in the drawings or position relationship, is for only for ease of the description present invention and simplifies description, without referring to
Show or imply signified device or component there must be specific orientation, with specific azimuth configuration and operation, therefore above-mentioned art
Language is not considered as limiting the invention.In the exposure of the present invention, the action of the instructions such as term " movement ", " compression " is based on
The variation rather than instruction of the relative position of associated components or " dynamic " or " pressure " that implies certain sense, therefore above-mentioned term
It is not considered as limiting the invention.
It is understood that term " one " is interpreted as " at least one " or " one or more ", i.e., in one embodiment,
The quantity of one component can be one, and in a further embodiment, the quantity of the component can be multiple, and term " one " is no
It is understood that as the limitation to quantity.
It is of one according to a preferred embodiment of the invention for automobile belt transmission system as shown in Fig. 1 to Fig. 8 C
Tight device, is used for the stretcher of automobile engine belt drive system, and simultaneously can be around being fixed on tensioner arm and engine machine
Shaft rotation on body, to realize the spies such as rigidity is back and forth oriented to, the vibration for the tensioner arm of decaying and reliable displacement limit
Property.Particularly, the tensioning apparatus has the advantages that manufacture cost reduction, transport and installation facility simultaneously.It is worth mentioning, institute
Rigidity is stated back and forth to be directed to be realized by rationally designing the guiding mechanism of the tensioning apparatus；The attenuation tensioner arm
It vibrates and is realized by the damping mechanism by the tensioning apparatus；The limit that the reliable displacement limitation passes through the tensioning apparatus
Position protection mechanism is realized.
In the preferred embodiment of the present invention, the tensioning apparatus 1 includes a upper spring seat 10, a helical spring
20, a damping buffering component 30, a lower spring cup 40, one first spacer pin 50 and a rigidity guide rod 60.The rigidity guide rod
60 settings are linked to the lower spring cup 40, and the damping buffering component 30 is placed on the rigidity guide rod 60, the helical spring
20 between the upper spring seat 10 and the lower spring cup 40, and first spacer pin 50 passes through 10 He of upper spring seat
The rigidity guide rod 60.Furthermore, the rigidity guide rod 60, the damping buffering component 30 and the helical spring
20 are coaxially installed between the upper spring seat 10 and the lower spring cup 40, and are controlled by first spacer pin 50 described
Rigidity guide rod 60 carries out a linear reciprocal movement in a certain range with the helical spring 20.It is noted that the line
Property move back and forth linear mode be relative to the rigidity guide rod 60.It may also be said that via first spacer pin 50, described
Rigidity guide rod 60 can make the upper spring seat 10 and the lower spring cup 40 phase in a certain distance with the helical spring 20
It moves over the ground.
It is worth mentioning, the guiding mechanism is made of the rigidity guide rod 60, to ensure 10 He of upper spring seat
The linear movement of 40 relativity of lower spring cup.The damping mechanism is the helical spring 20, the damping buffering component
30 and the rigidity guide rod 60 formed.It further says, due to the helical spring 20 and the damping buffering component 30
Itself has the elastic properties for restoring and compressing, therefore in 1 start of tensioning apparatus, the helical spring 20 and the resistance
Buddhist nun's Buffer Unit 30 because making loading and unloading during generate and energy loss and then generate damping.In addition, the rigidity is led
Frictional resistance caused by axial movement of the bar 60 in the damping buffering component 30 can also generate certain frictional damping.
The spacing protecting mechanism is then made of the upper spring seat 10, first spacer pin 50 and the rigidity guide rod 60.
Further to say, the rigidity guide rod 60 is movably installed on the upper spring seat 10 through first spacer pin 50, and
And the displacement distance of the rigidity guide rod 60 is limited by first spacer pin 50 and the rigidity guide rod 60.
In the preferred embodiment of the present invention, the upper spring seat 10 is connected with the tensioner arm, the lower spring
Seat 40 is connected with the engine body, this is intended only as one for example, not becoming the limitation of the present invention.In addition, value
It obtains one to be mentioned that, the rigidity guide rod 60 and the lower spring cup 40 are integrated, will cause the tensioning apparatus in this way
More compact structure, while be also more convenient for installing.It should be understood by those skilled in the art that the rigidity guide rod 60 and the lower bullet
Spring abutment 40 is integrated, is that can pass through to link the rigidity guide rod 60 with 40 2 component of lower spring cup or be directly
Integrally formed.For example, the rigidity guide rod 60 and the lower spring cup 40 can be become one through tight friction fit
Body；Or the rigidity guide rod 60 and the lower spring cup 40 are become into one through gluing；Or by the rigidity guide rod 60
It is also combined with the lower spring cup 40 through structure, seems screw thread, card slot etc., become one；And the rigidity guide rod
60 and the lower spring cup 40 can become one through integrally formed production method, seem pressure injection forming, powder
Metallurgy forming or vehicle wash machining forming etc..
In the preferred embodiment of the present invention, the helical spring 20 is pressurized ground mounted on 10 He of upper spring seat
Between the lower spring cup 40, one is integrated on the lower spring cup 40 as the rigid guide being oriented to position-limiting action
60, wherein the rigidity guide rod 60 is co-axially mounted with the helical spring 20, and across the upper spring seat 10 go to ensure described
The linear reciprocal movement in a certain range of tensioning apparatus 1.Particularly, between the helical spring 20 and the rigidity guide rod 60
There is the damping buffering component 30 of damping effect together, both ends are respectively supported at the upper spring seat and the lower spring cup
On.In addition, the set-mounted mode of first spacer pin 50 is will to be first mounted on the upper spring seat 10 and the lower spring
The helical spring 20 between seat 40 loads, by special equipment by first spacer pin 50 from the upper spring seat 10 1
Side is pressed into, and across after the rigidity guide rod 60, is pierced by from the another side of the upper spring seat 10, and the rigidity is led with being formed
The limitation of the axial movement of bar 60, so as to fulfill the limiting to the tensioning apparatus 1.Particularly, for the ease of main engine plants
Installation, can continue to compress the tensioning apparatus 1, until second spacer pin 80 can make institute to pass through the rigidity guide rod 60
It is shorter to state the total length of tensioning apparatus 1.It is installed on the engine body by the stretcher in this way, and on attachment wheel
After installing belt, you can take out second spacer pin 80, the tensioning apparatus 1 is slow in the helical spring 20 and the damping
It rushes under the action of component 30 and restores, the tensioning wheel on the tensioner arm is driven, which to move, makes belt tension.
In the preferred embodiment of the present invention, the upper spring seat 10 has connecting hole 11 on one, the lower spring
Seat 40 has connecting hole 41, can be rotated rotating around the bolt being fixed on the tensioner arm or the engine, wherein
The upper connecting hole 11 of the upper spring seat 10 is connected with the tensioner arm, the lower connecting hole of the lower spring cup 40
41 are connected with the engine body.This is intended only as one for example, not becoming the limitation of the present invention.
In the preferred embodiment of the present invention, the tensioning apparatus 1 further includes a upper bushing 101, a Upper shaft sleeve
102, once 103 and one Lower shaft sleeve 104 of bushing, wherein the upper bushing 101 and the Upper shaft sleeve 102 are respectively placed in connection
Hole 11, lower 103 and one Lower shaft sleeve 104 of bushing, is respectively placed in lower connecting hole 41.In this way due to the two of the tensioning apparatus 1
End is respectively provided with bushing and axle sleeve, to ensure that the tensioning apparatus 1 is freely rotated respectively with tensioner arm and engine body.Institute
The tension stated the damping of tensioning apparatus 1 and provided is not influenced by environment temperature, and performance is steady in any operating temperature range
It is fixed.
In the preferred embodiment of the present invention, the upper spring seat 10 goes out pin hole 12 including one, through described
The ontology of upper spring abutment 10.The rigidity guide rod 60 includes a limiting slot 61, is located away from one end of the lower spring cup 40,
And in elongated hole-shape.In this way when first spacer pin 50 goes out pin hole 12 and the steel also cross described in the upper spring seat 10
During the limiting slot 61 of property guide rod 60, first spacer pin 50 and the limiting slot 61 can be to 60 shapes of rigidity guide rod
Into the limitation of axial movement, so as to fulfill the limiting to the tensioning apparatus 1.Furthermore, the rigidity guide rod
There is an installation first spacer pin 50 in 60 end there are one limiting slot 61 described in elongated hole-shape in the upper spring seat 10
It is described go out pin hole 12, loaded to the helical spring 20 being mounted between the upper spring seat 10 and the lower spring cup 40
Afterwards, the side that pin hole 12 is gone out described in first spacer pin 50 from the upper spring seat 10 is pressed into, is led across the rigidity
After the limiting slot 61 on bar 60, be pressed into the upper spring seat 10 it is described go out pin hole 12 opposite side, to be formed to described
The limitation of 60 axial movement of rigidity guide rod, so as to fulfill the limiting to the tensioning apparatus 1.Also it can say, the limiting slot
Length dimension distance be the rigidity guide rod 60 axial movement.It further says, when first spacer pin 50
During positioned at the top of the limiting slot 61 of the rigidity guide rod 60, i.e., described rigidity guide rod 60 is located at initial position, that is,
It says, the distance between the lower spring cup 40 and the upper spring seat 10 are maximum, and the helical spring 20 is in recovery state,
The damping buffering component 30 is in free state or mild compression state.It is to be appreciated that when first spacer pin 50
When the bottom end of the limiting slot 61 of the rigidity guide rod 60, i.e., described rigidity guide rod 60 is located at terminal position, that is to say, that
The distance between the lower spring cup 40 and the upper spring seat 10 are minimum, and the helical spring 20 and the damping buffering group
Part 30 is all in most compressed state.
Accordingly, it is to be understood that ground, the spacing protecting mechanism then by the upper spring seat 10, first spacer pin 50 with
And the rigidity guide rod 60 is formed.It further says, the rigidity guide rod 60 is through first spacer pin 50 by movably
The upper spring seat 10 is installed on, is that first spacer pin 50 is pressed into described in the upper spring seat 10 to go out pin hole 12 simultaneously
Across the limiting slot 61 of the rigidity guide rod 60, make the moving range of its rigidity guide rod 60 by first spacer pin
50 are limited in the length dimension of the limiting slot 61 of the rigidity guide rod 60.That is, first spacer pin 50 is opposite
The rigidity guide rod 60 remains stationary as, but the rigidity guide rod 60 through the rigidity guide rod 60 the limiting slot 61 along book
First spacer pin 50 slides.
In addition, it is noted that when first spacer pin 50 passes through the limiting slot 61 of the rigidity guide rod 60
It is to go out in pin hole 12 described in the mode of the interference fixed insertion upper spring seat 10.And first spacer pin 50 with
The cooperation for going out pin hole 12 of the upper spring seat 10 limits the axial movement of the rigidity guide rod 60, thereby ensures that
Even if stretcher belt fracture suddenly in the running slips, between the upper spring seat 10 and the lower spring cup 40
Uncontrollable disengaging movement will not occur.Particularly, it is installed for the ease of main engine plants, can continue to compress the tensioning apparatus 1, until
Second spacer pin 80 can make the tensioning apparatus 1 total to pass through limiting slot 61 described in the elongated hole-shape of the rigidity guide rod 60
Length it is shorter.It is installed on the engine body by the stretcher in this way, and after installing belt on attachment wheel, i.e.,
Second spacer pin 80 can be taken out, the tensioning apparatus 1 is in the helical spring 20 and the work of the damping buffering component 30
With lower recovery, the tensioning wheel on the tensioner arm is driven, which to move, makes belt tension.
In the preferred embodiment of the present invention, the upper spring seat 10 includes 13 and one step of round boss on one
14, wherein the upper round boss 13 is extended downwardly from the lower face of the upper spring seat 10, and make the upper round boss 13
The step 14 is formed between the lower face of the upper spring seat 10.It further says, described of the upper spring seat 10
The sectional area of rank 14 is greater than the sectional area of the upper round boss 13 of the upper spring seat 10.In addition, the lower spring cup
40 include lower 42 and one flange 43 of round boss, wherein the lower round boss 42 from the upper end of the lower spring cup 40 towards
Upper extension, and the upper surface of the lower round boss 42 and the lower spring cup 40 is made to form the flange 43.Further say,
The sectional area of the flange 43 of the lower spring cup 40 is greater than cutting for the lower round boss 42 of the lower spring cup 40
Area.It is noted that the lower round boss 42 is to be connected positioned at the lower spring cup 40 with the rigidity guide rod 60
Position.
Therefore, it is mounted between the upper spring seat 10 and the lower spring cup 40 when the helical spring 20 compression,
To prevent the helical spring 20 from radial motion occurring during recovery and compression, then by described 20 liang of end caps of helical spring
The upper spring seat 10 it is described on lower 42 outer end of round boss of round boss 13 and the lower spring cup 40, wherein
The upper end of the helical spring 20 is mounted on the step 14 of the upper spring seat 10, the lower end peace of the helical spring 20
On the flange 43 of the lower spring cup 40.
In the preferred embodiment of the present invention, the tensioning apparatus 1 further includes a guide pad 70, is used to be set to
The upper spring seat 10, guide pad 70 described in this way and the upper spring seat 10 are to be set up to two independent components respectively,
The manufacture of the upper spring seat is greatly simplified in this way.Particularly, both the guide pad 70 and the upper spring seat 10 can
To select different materials, such as 70 optional plastics of the guide pad, the 10 optional aluminium of lower spring cup or steel equal strength are larger
Material.Make the rigidity guide rod 60 operation in the guide pad 70 more steady via the matched combined of different materials, may be used also
To be effectively reduced the noise of the tensioning apparatus 1 and abrasion.That is, when the guide pad 70 is set to the upper spring
When in seat 10, the rigidity guide rod 60 is across the guide pad 70, and by first spacer pin 50 also cross on described
Go out the limiting slot 61 of pin hole 12 and the rigidity guide rod 60 described in spring base 10, so that first spacer pin 50 is to institute
The limitation that rigidity guide rod 60 forms axial movement is stated, and the rigidity guide rod 60 when moving can be via the guide pad
70, therefore the guide pad 70 and the rigidity guide rod 60 can also select two kinds of appropriate materials, such as plastics and steel respectively,
Such matched combined also contributes to reduce noise and reduce to wear, that is to say, that can make the rigidity guide rod 60 in the guiding
Even running in block 70.It should be understood by those skilled in the art that upper spring seat 10 is led with described described in reasonable design
To the fixed and positioned of block 70 and the rigidity guide rod 60 with certain bending stiffness is selected, is not only made in this way in institute
State tensioning apparatus 1 compress and the course of work restored in, the rigidity guide rod 60 can under the guiding of the guide pad 70 into
Row linear reciprocal movement is outer without deforming, and additionally aids the rigidity guide rod 60 smooth sliding in the guide pad 70.
It is worth mentioning, the upper spring seat 10 includes a profiling guide pad slot 15, for accommodating the guide pad 70.
Particularly, the guide pad 70 is designed to an axial symmetry polyhedron, polygon small for both ends broad in the middle of longitudinal section shape
Shape, therefore, the shape of the profiling guide pad slot 15 of the upper spring seat 10 need to be identical with the shape of the guide pad.Also
It is to say, the profiling guide pad slot 15 with 70 same shape of guide pad should be formed in the upper spring seat 10, for group
The guide pad 70 is closed in assembling.In addition, the profiling guide pad slot 15 of the upper spring seat 10 is except shape and the guide pad
70 is identical outer, and size dimension need to meet and the requirement of the interference fit of the guide pad 70.
In the preferred embodiment of the present invention, the guide pad 70 is on an a left wall 71a and right wall 71b, one
An an a wall 72a and lower wall 72b and antetheca 73a and rear wall 73b.That is, the polyhedron of the guide pad 70 be by
The left wall 71a of the guide pad 70, the right wall 71b of the guide pad 70, the guide pad 70 the upper wall
72a, the lower wall 72b of the guide pad 70, the antetheca 73a of the guide pad 70 and the guide pad 70 it is described
Rear wall 73b is formed, and the polygon that its longitudinal section shape is small for both ends broad in the middle.The profiling of the upper spring seat 10
Guide pad slot 15 has a guide pad slot left wall 15a, a guide pad slot right wall 15b and a guide pad slot lower wall 15c.Namely
It says, the profiling guide pad slot 15 forms a polygonal grooves, left by the guide pad slot of the profiling guide pad slot 15
The guide pad of wall 15a, the guide pad slot right wall 15b of the profiling guide pad slot 15 and the profiling guide pad slot 15
Slot lower wall 15c is formed, and the polygonal grooves shape of the profiling guide pad slot 15 and the guide pad 70 is described more
Face shape is identical.In this way when the guide pad 70 is installed on the upper spring seat 10, the guide pad 70 is placed on institute
The profiling guide pad slot 15 of upper spring seat 10 is stated, wherein the guide pad 70 is under the effect of external force, with interference place
Formula is installed on the profiling guide pad slot 15 of the upper spring seat 10, wherein the left wall 71a of the guide pad 70 and institute
The guide pad slot left wall 15a and the guide pad slot right wall 15b cooperation of right wall 71b and the profiling guide pad slot 15 are stated,
The lower wall 72b of the guide pad 70 and the guide pad slot lower wall 15c of the profiling guide pad slot 15 coordinate, and in this way may be used
With through the upper spring seat 10 the profiling guide pad slot 15 limit 70 multiple directions of guide pad linear movement and
Rotary motion.
In the preferred embodiment of the present invention, the guide pad 70 has a profiling guiding groove 74 and a through-hole 75,
The profiling guiding groove 74 of wherein described guide pad 70 is that the direction moved along the rigidity guide rod 60 forms in described lead
To the ontology of block 70.That is, the profiling guiding groove 74 is from the rear wall 73b of the guide pad 70 to the guiding
The ontology extension of block 70 is formed.It is noted that the shape of the profiling guiding groove 74 of the guide pad 70 needs to meet
With the requirement of 60 clearance fit of rigidity guide rod.Because when gap is too big, then influencing the effect of linear steering, gap is too small
When, then the profiling guiding groove 74 of the guide pad 70 is caused to aggravate with the friction of the rigidity guide rod 60, and then generate and make an uproar
It sound and reduces the service life.The through-hole 75 of the guide pad 70 is then from the antetheca 73a of the guide pad 70 to described
The rear wall 73b of guide pad 70 runs through the ontology of the guide pad 70.Particularly, the through-hole 75 is in the guide pad 70
Cross sectional shape between two walls of the lower wall 72b of the upper wall 72a and the guide pad 70 is rectangle.
In the preferred embodiment of the present invention, the tensioning apparatus 1 further includes one second spacer pin 80, via institute
The second spacer pin 80 is stated, the tensioning apparatus 1 can be compressed to most short position.That is, when being located at the upper spring seat 10
It is laminated to each other with the lower spring cup 40, wherein the institute between the upper spring seat 10 and the lower spring cup 40
It states helical spring 20 and the damping buffering component 30 while can continue to compress, and the rigidity guide rod 60 will be by under described
Spring base 40 is moved to the direction of the upper spring seat 10, is finally being worn by second spacer pin 80 from the upper spring seat 10
The rigidity guide rod 60 is crossed, to ensure that the rigidity guide rod 60 will not move again, at this moment the tensioning apparatus 1 has been then to be compressed
To most short position.In other words, the tensioning apparatus 1 can be made through first spacer pin 50 and the rigid guide 60 cooperation
Displacement is reliably limited, and by the cooperation of second spacer pin 80 and the rigid guide 60, the tensioning can be made
Device 1 is compressed into most short position, i.e., described helical spring 20 and the damping buffering component 30 are all compressed into most short position.
In the preferred embodiment of the present invention, the upper spring seat 10 further includes a U-shaped groove 16 and two protrusion platforms
Rank 18a, 18b, wherein the two raised step 18a, 18b extend outwardly from the upper spring seat 10, and formed it is coplanar, that is,
It says, the two raised step 18a of the upper spring seat 10,18b are to be located at same level.It further says, two is described convex
Go out step 18a, 18b and form a horizontal plane and a vertical plane in the upper spring seat 10.The U-shaped of the upper spring seat 10 is recessed
Slot 16 is formed in the two raised step 18a of the upper spring seat 10, on 18b.Further say, the upper spring seat 10
The U-shaped groove 16 is from the two raised step 18a of the upper spring seat 10, the horizontal plane and the vertical plane of 18b
At intersection, by described horizontal towards 10 internal stretch of upper spring seat.In addition, the it is noted that upper spring seat 10
The U-shaped groove 16 be used for and second spacer pin 80 coordinate to limit radially sliding for second spacer pin 80.Into
It says to one step, when second spacer pin 80 is located at the U-shaped groove 16 of the upper spring seat 10, and run through the steel simultaneously
During the limiting slot 61 of property guide rod 60, second spacer pin 80 is limited by the U-shaped groove 16 of the upper spring seat 10
While making and can not move radially, the rigidity guide rod 60 is also limited with the time by second spacer pin 80, and then is made
The tensioning apparatus 1 is located at most short position.It is to be appreciated that when first spacer pin 50 passes through the institute of the upper spring seat 10
It is connect after stating out pin hole 12 with the rigidity guide rod 60, and the rigidity guide rod 60 can be simultaneously inconjunction with into moving radially
The lower spring cup 40 is moved relative to the upper spring seat 10, particularly, the helical spring 20 and the damping buffering group
Part 30 provides recovery well, compression and damping in this.And second spacer pin 80 is arranged on described
It after the U-shaped groove 16 of spring base 10, and is connect with the rigidity guide rod 60, is then to make the rigidity guide rod 60 by limitation diameter
To movement, that is to say, that this when the lower spring cup 40 and the distance between the upper spring seat 10 it is most short and described
Helical spring 20 and the damping buffering component 30 are in most compressed state.Then make each of the tensioning apparatus 1 in this state
Parts are in opposing stationary state, therefore are suitable for transporting or are assembled to the described of automobile engine belt drive system
Stretcher.It is worth mentioning, second spacer pin 80 can readily and easily carry out the U from the upper spring seat 10 very much
Connected in star 16 is plugged.It further says, the tensioning apparatus 1 can easily be controlled to exist through second spacer pin 80
Most short position is moving back and forth position.When second spacer pin 80 is located at the U-shaped groove 16 of the upper spring seat 10
And when passing through the limiting slot 61 of the rigidity guide rod 60, then the tensioning apparatus 1 is made to be in most short position.In contrast,
When second spacer pin 80 is detached from the U-shaped groove 16 of the upper spring seat 10, the lower spring cup 40 and it is described on
Spring base 10 will be relatively moved because of the helical spring 20 and the damping buffering component 30, and the tensioning apparatus 1 is made to be in past
Multiple movement position.
In the preferred embodiment of the present invention, the upper spring seat 10 further includes a retaining wall 17 and an extension slot 19.
The shelves wall 17 of the upper spring seat 10 is set to the end of the U-shaped groove 16 of the upper spring seat 10, that is to say, that
Direction along the U-shaped groove 16 of the upper spring seat 10 and the end of travel in second spacer pin 80 form described
The retaining wall 17 of upper spring seat 10 is used to confirm and limit the travel position of second spacer pin 80.Particularly, it is described
Retaining wall 17 respectively with the two raised step 18a, the 18b horizontal plane formed in the upper spring seat 10 and the vertical plane
Vertically, and the retaining wall 17 of the upper spring seat 10 relative to the rigidity guide rod 60 outside diameter offset certain distance.
It, will be by it is noted that second spacer pin 80 is when the tensioning apparatus 1 is compressed into most short position
External force is inserted into the limiting slot 61 of the rigidity guide rod 60, and continues into second spacer pin 80 and push up on described
Until the retaining wall 17 of spring base 10.At this point, the both ends of second spacer pin 80 are respectively supported at two raised steps
It on 18a, 18b, and is radially slided by the U-shaped groove 16 limitation of the upper spring seat 10 so that limiting device is more reliable.
During the position, the vertical range of second spacer pin 80 to first spacer pin 50 should be less than the institute of the rigidity guide rod 60
State the length of limiting slot 61.
In addition, the extension slot 19 of the upper spring seat 10 is located at the upper connecting hole 11 of the upper spring seat 10 and described
Between the U-shaped groove 16 of upper spring seat 10, and in the mobile route of the rigidity guide rod 60, that is to say, that described to prolong
It is from the two raised step 18a to stretch slot 19, and 18b is upwardly extended, and wear in the horizontal plane that the upper spring seat 10 is formed
Cross the U-shaped groove 16 of the upper spring seat 10 the upper spring seat 10 it is described on the lower section of connecting hole 11 form one
Groove, in this way when the tensioning apparatus 1 is compressed into most short position under external force, the described of the upper spring seat 10 prolongs
Stretch slot 19 for accommodate the progress linear reciprocal movement the rigidity guide rod 60.That is, the upper spring seat 10
The extension slot 19 is that the rigidity guide rod 60 is carrying out the start space needed for the linear reciprocal movement, in this way described
Rigidity guide rod 60 can be in and out of the extension slot 19 of the upper spring seat 10 when moving back and forth.
It is noted that during the stretcher installation, connected and in attachment by the stretcher and the body
After installing belt on wheel, second spacer pin 80 is then pulled out, the tensioning apparatus 1 is in the helical spring 20 and the resistance
Restore under the action of Buddhist nun's Buffer Unit 30, the upper spring seat 10 drives the tensioning wheel to transport under the helical spring 20 effect
It is dynamic to make belt tension.Particularly, for ease of the plug of second spacer pin 80, second spacer pin 80 may be designed as L-type.
In the preferred embodiment of the present invention, the damping buffering component 30 is used to provide the tensioning apparatus 1
There is a damping, vibration damping.The damping buffering component 30 is installed in the upper spring seat 10 and the lower spring cup
Between 40, further, the damping buffering component 30 is installed in the upper round boss 13 of the upper spring seat 10
Between the lower round boss 42 of the lower spring cup 40.It is worth mentioning, the damping buffering component 30 is by elastic material
Expect it is made, therefore, the damping buffering component 30 itself have restore and compression property, damping buffering component described in this way
30 are located between the upper round boss 13 of the upper spring seat 10 and the lower round boss 42 of the lower spring cup 40
When, it can be because being mutually shifted between the upper spring seat 10 and the lower spring cup 40, and then and then restore or compress.Change speech
It, when the tensioning apparatus 1 is in most short position, i.e., the distance between described upper spring seat 10 and the lower spring cup 40 are also most
It is short, so the damping buffering component 30 between the upper spring seat 10 and the lower spring cup 40 will be by the upper bullet
The upper round boss 13 of spring abutment 10 and the lower round boss 42 of the lower spring cup 40 are squeezed in most compressed state.
Accordingly, it is to be understood that ground, in the tensioning apparatus 1 when moving back and forth position, positioned at the upper spring seat 10 and the lower bullet
The damping buffering component 30 between spring abutment 40 because of the elastic property of itself, so the compression of the damping buffering component 30 or
Recovery state can follow the upper spring seat 10 the upper round boss 13 and the lower spring cup 40 the lower circle it is convex
The distance between platform 42 and change.That is the tensioning apparatus 1 move back and forth when, the upper spring seat 10 and it is described under
The distance between spring base 40 can change, so the damping buffering component 30 and then compress or restore and generate damping or
The effect of vibration damping.It further says, when the stretcher works normally, the helical spring 20 constantly can restore and press
Contracting, and the damping buffering component 30 also between the upper spring seat 10 and the lower spring cup 40 constantly compression with it is extensive
It is multiple, and due to the characteristic of the damping buffering component 30, the process of loading and unloading is made to generate energy loss, and then generate resistance
Buddhist nun.
In the preferred embodiment of the present invention, the damping buffering component 30 has a profiling guide rod through-hole 31,
Longitudinally run through the ontology of the damping buffering component 30, for coordinating with the rigidity guide rod 60.Accordingly, it is to be understood that
, the shape of the profiling guide rod through-hole 31 need to meet the requirement with 60 clearance fit of rigidity guide rod.It is worth mentioning,
When the tensioning apparatus 1 works, the damping buffering component 30 can generate elastic hysteresis damping when compressing and restore, together
When, frictional resistance caused by axial movement of the rigidity guide rod 60 in the damping buffering component 30 can also generate one
Fixed frictional damping.
In the preferred embodiment of the present invention, the damping buffering component 30 includes multiple annular grooves 32, ring
It is around in the ontology of the damping buffering component 30.Further to say, the damping buffering component 30 is implemented as a column,
It is approximately a circular cylinder to be embodied as in the present invention.The profiling guide rod through-hole 31 is axially formed in the cylinder
Between, and shape meets the requirement with 60 clearance fit of rigidity guide rod.Multiple annular grooves 32 are then alternately formed in described
Around cylinder, i.e., the periphery of described cylinder, for damping buffering component 30 described in this way in start, the annular is recessed
The part of slot 32 can make the damping buffering component 30 compress or restore deformation, and then generate hysteretic damping, and decay described
The swing of tight arm.
Particularly, the present invention also provides the manufacture assemble methods of a tensioning apparatus, pack following steps：
(a) a rigidity guide rod 60 and a lower spring cup 40 are integrated；
(b) guide pad 70 is set to a upper spring seat 10；
(c) a damping buffering component 30 and a helical spring 20 are coaxially mounted on the upper spring seat 10 and the lower bullet
Between spring abutment 40；
(d) one first spacer pin 50 is also cross the upper spring seat 10 and the rigidity guide rod 60；And
(f) one second spacer pin 80 passes through the rigidity guide rod 60 from the upper spring seat 10, so that the tensioning apparatus 1
As for a most short position.
Be worth mentioning, the sequence of the above method can modify according to practical processing procedure, seem step (a), (b) it is suitable
Sequence can be replaced, and have no effect on the manufacture assembling of the tensioning apparatus.Therefore, those skilled in the art should manage
Solution, the sequence of the above method is not as limitation of the invention.
According to step (a), the rigidity guide rod 60 and the lower spring cup 40 are integrated, can pass through and lead the rigidity
Bar 60 links with 40 2 component of lower spring cup, can also be integrally formed.It is noted that the rigidity guide rod 60
One can be become with the lower spring cup 40 through tight friction fit；The rigidity guide rod 60 and the lower spring cup
40 can become one through gluing；The rigidity guide rod 60 can also be combined with the lower spring cup 40 through structure,
Seem screw thread, card slot etc., become one.
According to step (b), the upper spring seat 10 includes a profiling guide pad slot 15, for accommodating the guide pad
70.The guide pad 70 is designed to an axial symmetry polyhedron, the longitudinal section shape polygon small for both ends broad in the middle.This
Sample is when the guide pad 70 is installed on the profiling guide pad slot 15 of the upper spring seat 10, through the upper spring seat 10
The profiling guide pad slot 15 limit the linear movement and rotary motion of 70 multiple directions of guide pad.Further,
After the guide pad 70 has an a left wall 71a and right wall 71b, a upper wall 72a and a lower wall 72b and an antetheca 73a and one
Wall 73b is to form the polyhedron.The profiling guide pad slot 15 has a guide pad slot left wall 15a, a guide pad slot right wall
A 15b and guide pad slot lower wall 15c is to form a polygonal grooves.The polyhedron of the guide pad 70 is led with the profiling
It is identical to the polygonal grooves shape of block slot 15, in this way when the guide pad 70 is installed on described in the upper spring seat 10
During profiling guide pad slot 15, the guide pad more than 70 can be limited through the profiling guide pad slot 15 of the upper spring seat 10
The linear movement and rotary motion in direction.Further say, when the guide pad 70 under the effect of external force, in a manner of with interference
When being installed on the profiling guide pad slot 15 of the upper spring seat 10, wherein the left wall 71a of the guide pad 70 and institute
The guide pad slot left wall 15a and the guide pad slot right wall 15b cooperation of right wall 71b and the profiling guide pad slot 15 are stated,
The lower wall 72b of the guide pad 70 and the guide pad slot lower wall 15c of the profiling guide pad slot 15 coordinate, and in this way may be used
With through the upper spring seat 10 the profiling guide pad slot 15 limit 70 multiple directions of guide pad linear movement and
Rotary motion.
According to step (c), the damping buffering component 30 includes a profiling guide rod through-hole for longitudinally running through its ontology
31 and multiple annular grooves 32 of its ontology are surrounded on, damping buffering component 30 described in this way penetrates the profiling guide rod through-hole 31
It is installed on the rigidity guide rod 60, and multiple annular grooves 32 can make the damping buffering component 30 provide recovery and pressure
The effect of contracting, and then generate damping.
According to step (d), the rigidity guide rod 60 includes a limiting slot 61, and the upper spring seat 10 goes out pin hole including one
12, in this way in first spacer pin 50 also cross going out pin hole 12 and the rigidity guide rod 60 described in the upper spring seat 10
The limiting slot 61 when so that first spacer pin 50 to the rigidity guide rod 60 formed axial movement limitation.
Furthermore, the rigidity guide rod 60 beginning position and terminal position movement together, displacement distance is the steel
The length dimension of the limiting slot 61 of property guide rod 60.It is worth mentioning, the movement of the rigidity guide rod 60 is and the damping
What Buffer Unit 30 and the helical spring 20 interlocked, and drive the lower spring cup 40 and the upper spring seat 10 simultaneously
It is mobile.Particularly, it is gone in the rigidity guide rod 60 movement so that first spacer pin 50 is located at the institute of the rigidity guide rod 60
When stating the top of limiting slot 61, i.e., described rigidity guide rod 60 is located at initial position, and the helical spring 20 and the damping are slow
Component 30 is rushed all in recovery state, while the distance between the lower spring cup 40 and the upper spring seat 10 are maximum.In addition,
It is gone in the rigidity guide rod 60 movement so that first spacer pin 50 is located at the limiting slot 61 of the rigidity guide rod 60
During bottom end, i.e., described rigidity guide rod 60 is located at terminal position, and the helical spring 20 and the damping buffering component 30 are all located
In most compressed state, while the distance between the lower spring cup 40 and the upper spring seat 10 are minimum.
In addition, according to step (d), go out pin hole also cross described in the upper spring seat 10 in first spacer pin 50
12 and the limiting slot 61 of the rigidity guide rod 60, so that first spacer pin 50 forms axial direction to the rigidity guide rod 60
The limitation of motion range, device mode are to described in being installed between the upper spring seat 10 and the lower spring cup 40
After helical spring 20 loads, first spacer pin 50 out of described upper spring seat 10 described in go out a side pressure of pin hole 12
Enter, across after the limiting slot 61 on the rigidity guide rod 60, the opposite side of pin hole 12 is gone out described in press-in, to be formed to described
The limitation of 60 axial movement of rigidity guide rod, so as to fulfill the limiting to the tensioning apparatus 1.
According to step (f), when the lower spring cup 40 and the upper spring seat 10 are compressed, by second spacer pin
80 pass through the rigidity guide rod 60 from the upper spring seat 10.The upper spring seat 10 includes a U-shaped groove 16 and two protrusion platforms
Rank 18a, 18b, the both ends of second spacer pin 80 are respectively supported at the two raised step 18a, on 18b, and by the U-shaped
Groove 16 is accommodated, therefore the U-shaped groove 16 of the upper spring seat 10 limits second spacer pin 80 relative to described
Rigidity guide rod 60 radially slides.
According to step (f), for ease of the plug of second spacer pin 80, second spacer pin 80 may be designed as L-type.
Particularly, the present invention also provides the compound formulations of a tensioning apparatus, pack following steps：
(a1) upper spring seat 10 is connected with tensioner arm；
(b1) lower spring cup 40 is connected with engine body；And
(c1) one second spacer pin 80 is discharged.
The sequence of the above method can according to circumstances modify, and seem that step (a), the sequence of (b) can be replaced,
Have no effect on assembling for the tensioning apparatus.Therefore, it should be understood by those skilled in the art that the sequence of the above method not
Limitation as the present invention.
According to step (a1), the upper spring seat 10 has connecting hole 11 on one, is used to be connected with the tensioner arm.
According to step (b1), the lower spring cup 40 has connecting hole 41, is used for and the engine body phase
Even.
According to step (c1), second spacer pin 80 is located at the upper spring seat 10, for limiting so that the lower bullet
Spring abutment 40 is remained stationary as with the upper spring seat 10, described when second spacer pin 80 is detached from from the upper spring seat 10
Lower spring cup 40 can carry out axial recovery campaign with the upper spring seat 10.Furthermore, the tensioning apparatus point
It can not be around the shaft rotation being fixed on tensioner arm and engine body, for belt drive system is made to can provide better effect
Can, and and then avoid belt slippage, noise and vibration.And when second spacer pin 80 is not released, the tensioning apparatus
Mood is can provide better to be transported and installed.
It should be understood by those skilled in the art that foregoing description and attached the embodiment of the present invention shown in figure are only used as illustrating
And it is not intended to limit the present invention.The purpose of the present invention has been fully and effectively achieved.The function and structural principle of the present invention exists
It shows and illustrates in embodiment, under without departing from the principle, embodiments of the present invention can have any deformation or modification.
Claims (49)
- A 1. tensioning apparatus, for the stretcher of automobile engine belt drive system, which is characterized in that including：One upper spring seat has connecting hole on one；One lower spring cup has connecting hole, wherein the upper connecting hole is respectively used to the lower connecting hole around fixation In the bolt rotation on tensioner arm or engine；One rigidity guide rod, setting are linked to the lower spring cup；One damping buffering element is placed on the rigidity guide rod and is installed in the upper spring seat and the lower spring Between seat；One helical spring, between the upper spring seat and the lower spring cup, and with the rigidity guide rod and the resistance Buddhist nun's buffer element is co-axially mounted；AndOne first spacer pin passes through the rigidity guide rod via the upper spring seat, and rigidity guide rod described in this way is limited in A linear reciprocal movement is carried out in a certain range.
- 2. tensioning apparatus according to claim 1, wherein the rigidity guide rod and the lower spring cup are integrated, so that The more compact structure of the tensioning apparatus is obtained, while is also more convenient for installing.
- 3. tensioning apparatus according to claim 1, wherein the upper spring seat goes out pin hole including one, through on described The ontology of spring abutment；The rigidity guide rod includes a limiting slot, is located away from one end of the lower spring cup, and in slot hole Shape, in this way when first spacer pin is also cross the limit for going out pin hole and the rigidity guide rod described in the upper spring seat During the slot of position, first spacer pin and the limiting slot can form the rigidity guide rod limitation of axial movement, from And realize the limiting to the tensioning apparatus.
- 4. tensioning apparatus according to claim 3, wherein the length dimension distance of the limiting slot is that the rigidity is led The axial movement of bar.
- 5. tensioning apparatus according to claim 3, wherein first spacer pin is located at the limit of the rigidity guide rod During the top of position slot, the distance between the lower spring cup and the upper spring seat are maximum, and the helical spring is in and restores State, the damping buffering component are in free state or mild compression state；First spacer pin, which is located at the rigidity, leads During the bottom end of the limiting slot of bar, the distance between the lower spring cup and the upper spring seat are minimum, and the spiral bullet Spring is in most compressed state.
- 6. tensioning apparatus according to claim 3, wherein first spacer pin passes through the limit of the rigidity guide rod During the slot of position, to go out in pin hole described in the mode of the interference fixed insertion upper spring seat.
- 7. tensioning apparatus according to claim 3, wherein the upper spring seat includes round boss and a step on one, Wherein described upper round boss is extended downwardly from the lower face of the upper spring seat, and makes the upper round boss and the upper bullet The step is formed between the lower face of spring abutment.
- 8. tensioning apparatus according to claim 7, wherein the lower spring cup includes lower round boss and a flange, Described in lower round boss upwardly extended from the upper surface of the lower spring cup, and make the lower round boss and the lower spring The upper surface of seat forms the flange, is connected wherein the lower round boss is located at the lower spring cup with the rigidity guide rod Position.
- 9. tensioning apparatus according to claim 8, wherein the helical spring both ends are sleeved on the upper round boss and institute Lower round boss outer end is stated, and the upper end of the helical spring is mounted on the step of the upper spring seat, the spiral The lower end of spring is mounted on the flange of the lower spring cup, to prevent the helical spring from radial motion occurs.
- 10. according to the tensioning apparatus any in claim 1-9, including a guide pad, it is used to be set to described Upper spring seat, wherein the rigidity guide rod passes through the guide pad, and by first spacer pin also cross the upper spring Go out the limiting slot of pin hole and the rigidity guide rod described in seat, so that first spacer pin forms the rigidity guide rod The limitation of axial movement.
- 11. tensioning apparatus according to claim 10, wherein the upper spring seat has a profiling guide pad slot, shape Need to be identical with the shape of the guide pad, for accommodating the guide pad.
- 12. tensioning apparatus according to claim 11, wherein the guide pad have a left wall and one upper wall of a right wall and One lower wall and an antetheca and a rear wall shape are using a longitudinal section shape axial symmetry polyhedron small as both ends broad in the middle.
- 13. tensioning apparatus according to claim 12, wherein the profiling guide pad slot has a guide pad slot left wall, one Guide pad slot right wall and a guide pad slot lower wall form a polygonal grooves, guide pad described so under the effect of external force, with The mode of interference is installed on the profiling guide pad slot of the upper spring seat, wherein the left wall of the guide pad and described Right wall coordinates with the guide pad slot left wall and the guide pad slot right wall, and the lower wall of the guide pad is led with described Coordinate to block slot lower wall, to limit the line of the guide pad multiple directions through the profiling guide pad slot of the upper spring seat Property movement and rotary motion.
- 14. tensioning apparatus according to claim 13, wherein the guide pad has a profiling guiding groove, along described The direction of rigidity guide rod movement forms in the ontology of the guide pad, wherein the shape of the profiling guiding groove of the guide pad Meet the requirement with the rigidity guide rod clearance fit.
- 15. tensioning apparatus according to claim 14, wherein the guide pad has a through-hole, from the guide pad The rear wall of the antetheca to the guide pad runs through the ontology of the guide pad, wherein the through-hole is in the guide pad Cross sectional shape between two walls of the lower wall of the upper wall and the guide pad is rectangle.
- 16. tensioning apparatus according to claim 1 including one second spacer pin, is removably located on described Spring base, and across the rigidity guide rod, the linear reciprocal movement is carried out to limit the rigidity guide rod.
- 17. tensioning apparatus according to claim 15 including one second spacer pin, is removably located on described Spring base, and the limiting slot of the rigidity guide rod is passed through, the linear reciprocal movement is carried out to limit the rigidity guide rod, At this moment the tensioning apparatus is then to be compressed to a most short position, and when the second spacer pin disengaging upper spring seat, then described Tensioning apparatus then moves back and forth position in one, and stroke, which is appointed, is limited to the first spacer pin.
- 18. according to the tensioning apparatus any in claim 10-15, wherein the guide pad be implemented as plastic material or Hardness is different from the material of the rigidity guide rod.
- 19. according to the tensioning apparatus any in claim 10-15, wherein the lower spring cup is implemented as aluminium or steel etc. The big material of the intensity guide pad.
- 20. according to the tensioning apparatus any in claim 10-15, wherein the rigidity guide rod be implemented as steel, iron or The big material of the metal alloy equal strength guide pad.
- 21. according to the tensioning apparatus any in claim 1-9 and 11-17, wherein the upper spring seat includes two protrusions Step, extend outwardly from the upper spring seat and formed it is coplanar, and two raised steps the upper spring seat formed one Horizontal plane and a vertical plane.
- 22. tensioning apparatus according to claim 21 wherein the upper spring seat includes a U-shaped groove, is formed in two At the horizontal plane of the raised step and the vertical plane intersection, and by described horizontal towards prolonging inside the upper spring seat It stretches, wherein the U-shaped groove is used to that second spacer pin to be set to limit radially sliding for second spacer pin.
- 23. tensioning apparatus according to claim 22, wherein the upper spring seat includes one grade of wall, along the U-shaped The direction of groove is set to end, for confirming and limiting the travel position of second spacer pin.
- 24. tensioning apparatus according to claim 23, wherein the upper spring seat includes an extension slot, it is described convex from two Go out step to upwardly extend in the horizontal plane that the upper spring seat is formed, and pass through U-shaped groove connecting hole on described Lower section form a groove, for accommodating the rigidity guide rod for carrying out the linear reciprocal movement.
- 25. tensioning apparatus according to claim 17, wherein second spacer pin is implemented as L-type.
- 26. tensioning apparatus according to claim 17, wherein the damping buffering element is installed in the upper spring seat The upper round boss and the lower spring cup the lower round boss between.
- 27. tensioning apparatus according to claim 1, wherein the damping buffering element is as made by elastic material.
- 28. tensioning apparatus according to claim 1, wherein the damping buffering element has a profiling guide rod through-hole, Axially run through the ontology of the damping buffering element, for coordinating with the rigidity guide rod, in this way in the tensioning apparatus In running, the compression and recovery of the damping buffering element can generate elastic hysteresis damping.
- 29. according to the tensioning apparatus any in claim 1-9,22-28, wherein the damping buffering element is including multiple Annular groove, compartment of terrain are surrounded on the ontology of the damping buffering element, and damping buffering element described in this way is in start, institute The damping buffering compression element can be made or restore deformation, and then generate hysteretic damping, and the institute that decays by stating the part of annular groove State the swing of tensioner arm.
- 30. the manufacture assemble method of a tensioning apparatus, which is characterized in that packaging following steps：(a) a rigidity guide rod and a lower spring cup are integrated；(b) guide pad is set to a upper spring seat；(c) a damping buffering element and a helical spring are coaxially mounted between the upper spring seat and the lower spring cup；(d) one first spacer pin is also cross the upper spring seat and the rigidity guide rod；And(f) one second spacer pin passes through the rigidity guide rod from the upper spring seat, so that the tensioning apparatus is most short as one Position.
- 31. the manufacture assemble method of tensioning apparatus according to claim 30, wherein according to step (a), the rigidity guide rod It is integrated with the lower spring cup, it is to become one through tight friction fit.
- 32. the manufacture assemble method of tensioning apparatus according to claim 30, wherein according to step (a), the rigidity guide rod It is integrated with the lower spring cup, it is to become one through gluing.
- 33. the manufacture assemble method of tensioning apparatus according to claim 30, wherein according to step (a), the rigidity guide rod It is integrated with the lower spring cup, it is to combine to become one through structure.
- 34. the manufacture assemble method of tensioning apparatus according to claim 30, wherein according to step (a), the rigidity guide rod It is integrated with the lower spring cup, become one by integrally formed production method.
- 35. the manufacture assemble method of tensioning apparatus according to claim 30, wherein according to step (b), the upper spring seat Include a profiling guide pad slot, there is a guide pad slot left wall, a guide pad slot right wall and a guide pad slot lower wall with shape It goes to accommodate the guide pad into a polygonal grooves.
- 36. the manufacture assemble method of tensioning apparatus according to claim 35, wherein the guide pad is right by a left wall and one Wall, a upper wall and a lower wall and an antetheca and a rear wall form an axial symmetry polyhedron, and longitudinal section shape is centre The small polygon in big both ends, it is described when guide pad described in this way is placed on the profiling guide pad slot of the upper spring seat The left wall and the right wall of guide pad coordinate with the guide pad slot left wall and the guide pad slot right wall, described to lead Coordinate to the lower wall and the guide pad slot lower wall of block, so that the profiling guide pad slot limitation institute of the upper spring seat State the linear movement and rotary motion of guide pad multiple directions.
- 37. the manufacture assemble method of tensioning apparatus according to claim 30, wherein according to step (c), the damping buffering Element includes one axially through a profiling guide rod through-hole of its ontology and the multiple annular grooves for being surrounded on its ontology, such institute Damping buffering element is stated to be installed on the rigidity guide rod through the profiling guide rod through-hole, and multiple annular grooves can make The damping buffering element provides the effect of restoring and compressing, and then generates damping.
- 38. the manufacture assemble method of tensioning apparatus according to claim 30, wherein according to step (d), the rigidity guide rod Including a limiting slot, the upper spring seat goes out pin hole including one, in this way in first spacer pin also cross spring on described Seat it is described go out pin hole and the rigidity guide rod the limiting slot when so that first spacer pin is to the rigidity guide rod shape Into the limitation of axial movement.
- 39. the manufacture assemble method of tensioning apparatus according to claim 30, wherein according to step (d), the rigidity guide rod Beginning position and terminal position movement together, displacement distance is the length ruler of the limiting slot of the rigidity guide rod It is very little.
- 40. the manufacture assemble method of tensioning apparatus according to claim 39, wherein rigidity guide rod movement is gone so that institute When stating the top for the limiting slot that the first spacer pin is located at the rigidity guide rod, then the rigidity guide rod is located at the start bit It puts, while the helical spring is in minimal compression, the damping buffering element is in free state or mild compression.
- 41. the manufacture assemble method of tensioning apparatus according to claim 39, wherein rigidity guide rod movement is gone so that institute When stating the bottom end for the limiting slot that the first spacer pin is located at the rigidity guide rod, then the rigidity guide rod is located at end position It puts, while the helical spring and the damping buffering element are all in most compressed state.
- 42. the manufacture assemble method of tensioning apparatus according to claim 38, wherein according to step (d), wherein to installation After helical spring loading between the upper spring seat and the lower spring cup, first spacer pin from described Go out the side press-in of pin hole described in spring base, across after the limiting slot on the rigidity guide rod, pin is gone out described in press-in The opposite side in hole, to form the limitation to the rigidity guide rod axial movement, so as to fulfill the limit to the tensioning apparatus Position.
- 43. the manufacture assemble method of tensioning apparatus according to claim 38, wherein according to step (f), in the lower spring When seat and the upper spring seat are compressed, second spacer pin is passed through into the rigidity guide rod from the upper spring seat.
- 44. the manufacture assemble method of tensioning apparatus according to claim 30, wherein according to step (f), the upper spring seat Including a U-shaped groove and two raised steps, the both ends of second spacer pin are respectively supported in two raised steps, and by The U-shaped groove is accommodated, therefore the U-shaped groove of the upper spring seat limits second spacer pin relative to the steel Property guide rod radially slides.
- 45. the manufacture assemble method of tensioning apparatus according to claim 30, wherein according to step (f), second limiting Pin may be designed as L-type.
- 46. the compound formulation of a tensioning apparatus, which is characterized in that packaging following steps：(a1) upper spring seat is connected with tensioner arm；(b1) lower spring cup is connected with engine body；And(c1) one second spacer pin is discharged.
- 47. the compound formulation of tensioning apparatus according to claim 30, wherein according to step (a1), the upper spring seat has Connecting hole on one is used to be connected with tensioner arm.
- 48. the compound formulation of tensioning apparatus according to claim 30, wherein according to step (b1), the lower spring cup has Connecting hole once is used to be connected with the engine body.
- 49. the compound formulation of tensioning apparatus according to claim 30, wherein according to step (c1), the second limiting pins position In the upper spring seat, for limiting so that the lower spring cup is remained stationary as with the upper spring seat, when the described second limiting Pin from the upper spring seat is detached from when, the lower spring cup and the upper spring seat can carry out axial recovery campaign.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611121162.6A CN108194590A (en) | 2016-12-08 | 2016-12-08 | Tensioning apparatus and its application for automobile belt transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611121162.6A CN108194590A (en) | 2016-12-08 | 2016-12-08 | Tensioning apparatus and its application for automobile belt transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108194590A true CN108194590A (en) | 2018-06-22 |
Family
ID=62572469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611121162.6A Pending CN108194590A (en) | 2016-12-08 | 2016-12-08 | Tensioning apparatus and its application for automobile belt transmission system |
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| Country | Link |
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| CN (1) | CN108194590A (en) |
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