CN1185150C - Contained envelope-type drive chain and its drive gear - Google Patents
Contained envelope-type drive chain and its drive gear Download PDFInfo
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- CN1185150C CN1185150C CN 00106351 CN00106351A CN1185150C CN 1185150 C CN1185150 C CN 1185150C CN 00106351 CN00106351 CN 00106351 CN 00106351 A CN00106351 A CN 00106351A CN 1185150 C CN1185150 C CN 1185150C
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/02—Driving-chains
- F16G13/06—Driving-chains with links connected by parallel driving-pins with or without rollers so called open links
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Abstract
The present invention relates to a contained envelope-type transmission chain and a related transmission gear, which is an envelope, contained and push-draw type steel flexible transmission system which has the advantages of roller chains, silent tooth-shaped chains, synchronous tooth-shaped belts and belt transmission. One or more than one driving bow type tooth-shaped chain sheets, driven bow type tooth-shaped chain sheets are combined by pin shafts to form a basic structure unit of the transmission chain after superposed in a stagger and layering mode, the upper parts of the driving bow type tooth-shaped chain sheets and the driven bow type tooth-shaped chain sheets are in a bow shape or straight line shape, the left part and the right part are in a circular shape, and the center of each circle has a pin shaft hole. The shape of concave internal teeth between two circles of the lower part, the shape of circular arcs of the root part of the transmission gear, and the gear shape composed of the gear top part and the middle part are completely uniform.
Description
A kind of envelope formula messenger chain and associated transfer gear that is used for machine driven system.
Technical background of the present invention is: known technologies such as sleeve-barrel roollr chain-driving, silent chain transmission, strap drive and synchronizing jugged transmission.
Bush roller chaiin, silent chain transmission, strap drive and synchronizing jugged transmission all belong to cushion drive.
Strap drive has flexibility and elasticity, so it has following characteristics: (1) stable drive, can relax impact, and absorb vibration; Can skid automatically when (2) transshipping, can prevent the damage of other parts; (3) noise is little, reduces environmental pollution; (4) can be used for high speed and high-power transmission; (5) can be in big distance or closer distance direct transmitting movement; (6) simple in structure, expense is lower.General strap drive is by the tribology principle transmission, is subjected to the influence of factors such as magnitude of load, driving band, has Elastic Sliding inevitably between band and the belt wheel, makes band can not keep identical with linear velocity on the belt wheel contact surface, and transmitting ratio can not form fixed value; Rely on the strap drive of frictional transmission that the tensioning measure must be arranged in addition, make driving band have certain initial tension, this will increase the stressed of axle and bearing.
Chain-driving belongs to the engaged transmission with middle flexible element, and it has some characteristics of gear transmission and strap drive concurrently.Compare with gear transmission, chain-drive manufacturing and setting accuracy require lower; The sprocket stressing conditions is better, and load-carrying capacity is bigger; Certain buffering and cushioning performance are arranged; Width between centers can be greatly and structure is light.Compare with Friction Type Belt Drive.The chain-drive average ratios is accurate; Driving efficiency is high slightly; Chain is less to the pulling force of axle; Under the same usage condition, scantling of structure is more compact; In addition, the wearing and tearing ratio of elongation of chain is slower, and it is less that work capacity is regulated in tensioning, and can work under harsh environmental conditions.The chain-drive major defect is: polygon effect causes vibration, impact, noise; Can not keep instantaneous transmission ratio constant; Tooth easily takes place to jump in the wearing and tearing back; Be not suitable for and be subjected to space constraint to require the little and occasion of reverse drive rapidly of width between centers.
Silent chain claims silent chain again, stable drive, and vibration and noise are all very little, and its maximum speed can reach 40m/s at present, but maximum delivered power 3600KW, maximum transmission ratio can reach 15, and maximum distance between centers can reach 8m.The occasion that silent chain should be used at a high speed, transmitting ratio is big and width between centers is less, its driving efficiency is generally 0.95-0.98, and lubricated good transmission can reach 0.98-0.99.Silent chain is than bush roller chaiin complex structure, and price is higher, and it is difficult to make, so be used in the driving device that high speed or kinematic accuracy have relatively high expectations more.
Synchronous Belt Drives is the novel transmission with advantages such as strap drive, chain-driving and gear transmissions.The driving surface of band becomes profile of tooth, makes engaged transmission with the teeth groove of belt wheel.The strength layer of cog belt bears load, and is constant with the nodel line length that keeps cog belt.There is not slide relative between cog belt and belt wheel, thereby make driving wheel and flower wheel intercropping not have the synchromesh transmission of slippage, exist the installation site and require height, light, the fatiguability fracture of load, toothed shearing and pressure feedback, and the band dual-side, problems such as toothed wearing and tearing deficiency.
Purpose of the present invention and task are to create a kind of steel flexible transmission system that the advantage of roller chain, noiseless silent chain, synchronous cog belt, strap drive is combined together.It adopts the plug-type basic mechanical transmission structure of envelope of novel concept, in troclia distance not, under the prerequisite that does not increase the number of teeth, realize reducing significantly polygon effect, circumferential force is diminished, the homogeneity of transmission increases, live load reduces, the area of bearing load is multiplied and evenly shares tractive force, reduces wear thereby reach, the purpose that delays to elongate is especially when chain enters and withdraw from engagement, chain internode relative rotation reduces, alleviate and weakened the nibbling of middle flexible element, make it when keeping conventional rigidity and can turn round the characteristic of transmission, also to have the following advantages to transmission:
1) driving efficiency very high (η γ=0.96～0.99) is difficult for elongation, and is fricton-tight;
2) transmitting ratio is accurate, and the transmitting ratio scope of design very much not is subjected to design constraint (retrained by the locus);
3) linear velocity of Yun Xuing higher (can reach 40m/s), the bearing load ability is strong, in all steadily transmissions of high, low speed;
4) long service life, the sliding efficiency loss is little, wear-resistant;
5) imitate automatically advancing chain, the automatic compensation wear value;
6) band is flexible good, and noiseless is not jumped tooth, and resistance to tension is strong;
7) the buffer shock-absorbing performance is good;
8) the installation site requirement is low, allows not add in advance initial tension, and load suffered on axle and the bearing is little;
9) temperature influence not all can transmission under various bad working environments;
10) simple in structure, compact, use reliable, cheap;
Purpose of the present invention and task are achieved through the following technical solutions:
This envelope formula messenger chain and associated transfer gear, comprise messenger chain and transmission gear, a basic structural unit of messenger chain is to be driven bow type silent chain sheet, driven bow type silent chain sheet dislocation layering stack and connected in regular turn by bearing pin by main more than one or one to combine; It is characterized in that, the main top that drives bow type silent chain sheet, driven bow type silent chain sheet is arc or straight line, about portion rounded, respectively there is a pin shaft hole in two circular central authorities, the internal tooth form of recess fits like a glove consistent with the profile of tooth of transmission gear between two rounded lower portion.
This envelope formula messenger chain and associated transfer gear have three kinds of versions, and its constructional feature is:
A. basic structural unit: by bearing pin connect in regular turn mainly more than one or one drive bow type silent chain sheet, driven bow type silent chain sheet is formed;
B. basic structural unit: connect in regular turn by bearing pin and mainly more than to drive bow type silent chain sheet, driven bow type silent chain sheet more than, strengthen carrier bar more than and form;
C. basic structural unit: by bearing pin connect in regular turn one strengthen carrier bar with upper roller, more than one, mainly more than one drive bow type silent chain sheet, driven bow type silent chain sheet is formed more than one;
The main top that drives bow type silent chain sheet, driven bow type silent chain sheet is arc or straight line, about portion rounded, respectively there is a pin shaft hole in circular central authorities, recess between pin shaft hole and two circles is the internal tooth form shape, and internal tooth form can be processed into involute gear profile, synchronizing jugged, ratchet type, sawtooth pattern, profile of tooth such as trapezoidal.The applying that fits like a glove of the main profile of tooth that drives bow type silent chain sheet and main driven wheel, driven bow type silent chain sheet and the driven gear applying that fits like a glove.
The tooth root circle of driving chain wheel partly is circular arc, and castellated shape is formed at crown and middle part, and castellated shape can be processed into symmetric figure and asymmetric shape involute gear profile, synchronizing jugged, ratchet type, sawtooth pattern, profile of tooth such as trapezoidal.
The main spill internal tooth form place that drives bow type silent chain sheet, driven bow type silent chain sheet can be processed into symmetric figure and not claim shape involute gear profile, synchronizing jugged, ratchet type, sawtooth pattern, profile of tooth such as trapezoidal.
Main driving bow type silent chain sheet, the asymmetric shape spill of driven bow type silent chain sheet internal tooth form place virgule are drive side in the one unit structure, and long oblique line is the clutch side, and the profile of tooth direction is opposite, relatively on the contrary assembling.The master drives bow type silent chain sheet, driven bow type silent chain sheet indent profile of tooth can be processed into two circular arcs, two oblique lines, is a circular arc and tangent mutually between two oblique lines.
Driving and driven driving chain wheel profile of tooth fits like a glove consistent with main driving bow type silent chain sheet, driven bow type silent chain sheet indent profile of tooth, can be processed into symmetric figure and asymmetric shape, wherein asymmetric shape profile of tooth can be processed into two circular arcs, two oblique lines, is a circular arc and tangent mutually between two oblique lines.Virgule is a drive side, and long oblique line is the clutch side, and driving and driven tooth-formation of gear direction is opposite, relatively on the contrary assembling.Driving and driven driving chain wheel profile of tooth central authorities are processed with circular groove.
It is identical consistent with the roller cylindrical that the tooth root of driving chain wheel partly is circular arc, and coincide consistent with main driving bow type silent chain sheet, two ends, driven bow type silent chain sheet bottom circular arc.
Main drive bow type silent chain sheet, driven bow type silent chain sheet about circle can be greater than roller, equal roller, less than roller.
Envelope formula messenger chain is pressed the hinge arrangement difference, can be divided into four kinds of round pin formula, bearing-type, lining tile hinge type and swinging block hinge types.Wherein round pin formula and bearing-type hinge are made up of bearing pin, and main driving bow type silent chain sheet, driven bow type silent chain sheet pin-and-hole are close fit annular bearing in circular hole or the circular hole; There is each one of length fan groove the articulated main driving bow type silent chain sheet of lining tile, driven bow type silent chain sheet pin-and-hole both sides, the adjacent chain sheet about on the same bearing pin to an arrangement, the bearing pin of packing in the pin-and-hole, and in the short groove of bearing pin both sides, embed friction tight with it bearing shell; The swinging block hinge type does not have bearing pin, and hinge is made up of two curved surface cylinders, and main driving bow type silent chain sheet, driven bow type silent chain sheet pin-and-hole are close fit annular bearing in circular hole or the circular hole.
The structural principle of envelope formula messenger chain and associated transfer gear, transmission principle, principle of work are as follows:
1. absorb characteristics that carrier bar freely rotates around bearing pin and in conjunction with the characteristics of silent chain, bush roller chaiin, Synchronous Belt Drives, carrier bar is only participated in connecting transmission, do not participate in engaged transmission, change into and both participate in connecting transmission, participate in engaged transmission again, connect on the engaged transmission action function from carrier bar, be divided into main arc chain sheet and the driven bow type silent chain sheet of driving, its shape is as follows:
The main top that drives bow type silent chain sheet, driven bow type silent chain sheet is arc or straight line, about portion rounded, respectively there is a pin shaft hole in circular central authorities, recess between pin shaft hole and two circles is internal tooth form, and internal tooth form can be processed into involute gear profile, synchronizing jugged, ratchet type, sawtooth pattern, profile of tooth such as trapezoidal.
2. driving and driven tooth-formation of gear fits like a glove and contains main bow type silent chain sheet, the driven bow type silent chain sheet engagement part of driving, and its shape is as follows:
The crown of driving and driven gear partly partly forms the identical engagement in individual unit position with the main concave profile of tooth that drives bow type silent chain sheet, driven bow type silent chain sheet respectively; The tooth root circular arc portion of gear drives the partly identical engagement of portion's circular arc about bow type silent chain sheet, driven bow type silent chain sheet with the master; The tooth root circular arc portion of gear coincide with roller again and meshes.The applying that fits like a glove of the main profile of tooth that drives bow type silent chain sheet and main driven wheel, driven bow type silent chain sheet and the driven gear applying that fits like a glove.
3. with bearing pin some main driving bow type silent chain sheets, driven bow type silent chain sheet, roller, reinforcement carrier bar are combined into three kinds of block constructiones:
A. basic cell structure: by bearing pin connect in regular turn mainly more than one or one drive bow type silent chain sheet, driven bow type silent chain sheet is formed;
B. recombiner unit structure: connect in regular turn by bearing pin and mainly more than to drive bow type silent chain sheet, driven bow type silent chain sheet more than, strengthen carrier bar more than and form;
C. recombiner unit structure: by bearing pin connect in regular turn one strengthen carrier bar with upper roller, more than one, mainly more than one drive bow type silent chain sheet, driven bow type silent chain sheet is formed more than one;
The coincidence that is assembled in component units position in the tooth-formation of gear by staggered stack about several block constructiones in above-mentioned three kinds side by side is staggered, forms closed envelope stack steel flexible transmission system.
4. when load is heavily loaded greatly, adopt increasing modulus, increase wall thickness and take the multi-disc stack, make up to satisfy all kinds of purposes of adaptation according to demand.
5. when gear rotational speed during up to certain numerical value, envelope formula messenger chain is pressed the hinge arrangement difference, can be divided into three kinds of round pin bearing-type (seeing Fig. 2-13, Figure 26-28), lining tile hinge type (seeing Figure 18-19, Figure 26-28, Figure 38-40) and swinging block hinge types (seeing Figure 14-17, Figure 29-31).Wherein round pin formula and bearing-type hinge are made up of bearing pin, main driving bow type silent chain sheet, driven bow type silent chain sheet pin-and-hole are close fit annular bearing in circular hole or the circular hole, and the hinge bearing pressure area of this chain is little, and pressure is big, serious wear is only used on little load; The articulated main bow type silent chain sheet that drives of lining tile, there is each one of length fan groove driven bow type silent chain sheet pin-and-hole both sides, the adjacent chain sheet about on the same bearing pin to an arrangement, the bearing pin of packing in the pin-and-hole, and in the short groove of bearing pin both sides, embed friction tight with it bearing shell, formed a hinge by two bearing shells and a bearing pin like this, when two adjacent chain links relatively rotate, left and right sides bearing shell is swung each in elongated slot, two bearing shell inside faces slide along bearing pin surface, because that bearing shell length equals chain is wide, bearing area is big, pressure is little, the load ratio round pin formula that can transmit is big, but its shortcoming is still cliding friction because of bearing shell and bearing pin surface, so it is still bigger to wear and tear; The swinging block hinge type does not have bearing pin, and hinge is made up of two curved surface cylinders, and curved body is fixed in the corresponding chain film perforation separately, and when two adjacent chain links relatively rotated, the driving surface of two curved surface cylinders was done to roll relatively.Because load replaces cliding friction along the complete wide rectangular distribution of chain with friction of rolling, so friction drag significantly reduces, the master drives bow type silent chain sheet, driven bow type silent chain sheet pin-and-hole is a circular hole.At bearing pin and main drive between bow type silent chain sheet, the driven bow type silent chain sheet design and graphite oilless sintered-metal bearing is arranged or adopt the lining tile hinge type and make bearing pin into swinging block hinge type structure, make both running surfaces be difficult for forming very high temperature, will the direct contact under pressure become the indirect contact under pressure, avoided the gummed phenomenon that lubricant film is damaged and is caused between bearing pin and sleeve.Reduce the impact energy that the chain link engagement is subjected to, thereby reach the raising rotating speed, the purpose that reduces wear.
6. alleviate and the approaching polygon effect of eliminating from unit design
Roller chain and gear meshing belong to non-conjugated engagement, have polygon effect, and synchronous cog belt and strap drive belong to conjugation engagement, no polygon effect.Silent chain (claiming silent chain again) chain sheet is meshed with the profile of tooth of its straight line portion and the tooth of gear, general stable drive, noiseless.Bush roller chaiin and silent chain all have certain pitch value, the pitch of chain is big more under certain conditions, its load-carrying capacity is just high more, but the polygon effect of transmission also will increase, so vibration, impact, noise are also serious more, otherwise pitch is more little, load-carrying capacity is more little, polygon effect is little, and vibration, impact, noise are little.
Fully absorb the advantage of bush roller chaiin, silent chain, synchronous cog belt and strap drive, thus during design not dwindling pitch, under the prerequisite that does not increase the number of teeth, make common chain sheet into top and be arc, increase impact resistance.About portion be designed to circle (absorb synchronous cog belt, chain-drive advantage), the recess between two circles is designed to internal tooth form (absorbing the advantage of silent chain), and a chain link has been become two chain links (absorbing the little advantage of pitch).The crown part and the middle part of transmission gear are designed to castellated shape (absorbing the advantage of silent chain), and the tooth root circle of transmission gear partly keeps chain-drive circular shape (absorbing synchronous cog belt, chain-drive advantage).Make the applying that fits like a glove of the main profile of tooth that drives bow type silent chain sheet and main driven wheel, and about interlock (advantage of absorption band transmission) on the single profile of tooth that is superimposed upon main driven wheel; Make the applying that fits like a glove of driven bow type silent chain sheet and driven gear, and about on the staggered single profile of tooth that is superimposed upon driven gear (advantage of absorption band transmission); Make common chain sheet directly not participate in engaged transmission and participate in engaged transmission (absorbing the advantage of silent chain) instead directly, the connection revolution envelope transmission that composition different radii circle is linear continuously alleviates and the approaching purpose of eliminating the equilateral polygon effect in the transmission basically thereby reach.
7. realize the prolongation of failure period from unit design
Wearing and tearing are the modal a kind of failure modes of chain, and when chain was elongated to a certain degree because of wearing and tearing, it was [h that the maximum of chain link allows abrasion loss
p]
Max=0.03p is 428 as the driving chain model, chain joint number L
p=122, chain pitch p=12.7mm, it is [h that the maximum of chain link allows abrasion loss
p]
Max=0.03p=0.03 * 12.7=0.38.Being single link wear amount degenerates greater than the engagement situation of the 0.38 rear chain hinge and the gear teeth, and the tooth and the phenomenon of climbing take place to jump.
7.1 at first the profile of tooth with gear and carrier bar adopts asymmetric formula design.As: pitch is 12.7 gear and carrier bar can be designed into asymmetric side-play amount on the 1-1.6mm.Just the chain link greatest wear amount with chain also expands on the 1-1.6mm, has just prolonged 3-4 service life doubly.
7.2 adopt the increase loaded area when designing then again, share positive pressure, reduce the worn-down design measure of chain.The rigidity body of gear is formed by bearing pin with main driving bow type silent chain sheet, driven bow type silent chain sheet, roller can turn round the steel flexible structure, the identical revolution of the continuous linear superposition envelope of forming the different radii circle, be staggered to form large tracts of land, share the positive pressure and the load of being born at many levels, under gross pressure unmodified situation, because loaded area increases, bearing capacity just reduces at double on each squared unit area, thereby has alleviated steadily synchronously consistent sealing belt push-and-pull transmission transmitting movement or the power of forming of the pressure wearing and tearing that cause because of pressure factor at double.Increased considerably above-mentioned the prolongation on the 3-4 basis doubly service life again.
7.3 the strength at repeated alternation of chain and anti-repeatedly impact cutting cutting capacity are the principal elements of decision chain gear load-carrying capacity.
7.3.1 when heavy duty started to walk, chain speed was extremely low and spike load is excessive, thereby had surpassed the chain static strength, this collapse mode takes place in regular meeting.When worn out chain took place to jump tooth and climb on gear, the static strength of also easily arching was destroyed; If the slack list sag of chain gear is big and tensioning is bad, starting or huge inertia impact that glancing impact produced so repeatedly, just produce in the time of will making parts such as bearing pin, sleeve, roller less than fatigue impact disrumpent feelings.
7.3.2 chain is constantly moving when normal operation again and again, thereby its each element all is to work under inotropic action, through behind certain cycle number, fracture by fatigue will appear in carrier bar, and perhaps tired spot corrosion and endurance crack appear in roller surface.
7.3.3 because chain gear is the open type transmission, service conditions is abominable, and is lubricated also bad.Behind the wear of hinge, the chain length overall is increased, big thereby sag becomes, chain is easy to beat, and impacts during starting to increase.And the irregularity of chain link actual pitch, make transmission more not steady, increased load, vibration and noise, very easily cause more serious consequence of failure, collide mutually as pilled-in selvedge and slack list, bearing pin ruptures or the like because of wearing and tearing weaken intensity.Owing to bear bigger pressure between the bearing pin of chain hinge and sleeve, produce relative rotation again each other during transmission, thereby cause wear of hinge, make the actual pitch of chain elongated.
In order to solve above-mentioned wearing and tearing, overcome the endurance failure of chain, repeatedly impact disrumpent feelings and overload is broken the failure mode that is caused and made following structure design: taked to increase and strengthened carrier bar, can divide three kinds of forms: (1) is installed in midway location (seeing Figure 21, Figure 24), is used for general load; (2) be installed on two outsides and (see Figure 23), be used for medium load; (3) (seeing Figure 25) all installed in the middle part and two outsides, is used for heavy load.Change common carrier bar into arc carrier bar, form triangle and seal stressed supporting construction, bear inotropic action jointly with main driving bow type silent chain sheet, driven bow type silent chain sheet.During main the driving, driving force is given bearing pin by main drive wheel transfer chain sheet and roller indirect transfer, during the flower wheel transmission, driving force is by the chain sheet and roller is direct and gear transmission, when disengaging gear drive area enters intermediateness, the direct transferring power of chain sheet and bearing pin, do not have the wearing and tearing of rotation this moment, thereby do not have the wearing and tearing link of bearing pin and carrier bar.Main driving bow type silent chain sheet, driven bow type silent chain sheet are staggered to form the identical engagement of the closed stack in individual unit position at three between cog of gear, utilize the rigidity structure of gear to form the sealing support, increase drag factor.Thereby alleviate effectively and delayed the inefficacy that above-mentioned reason causes.
7.4 main drive bow type silent chain sheet, driven bow type silent chain sheet profile of tooth is assembled relatively on the contrary, mesh and separate at separately drive area, reduced engagement over half and separation process.
7.5 the indent profile of tooth of master and slave driving bow type silent chain sheet fits like a glove consistent with the profile of tooth and the circular pitch of main driven wheel.Can center on respectively to mesh when bearing pin rotates in a profile of tooth and enter in another profile of tooth.When particularly adopting asymmetric profile of tooth, almost under the situation of no meshing interference, directly finishing coincide fits.Also just reduced relative wear.Not retrained by transmitting ratio, retrained by the locus, can obtain bigger design space.
The realization of foregoing invention design plan makes the rigidity body of gear form by bearing pin with main driving bow type silent chain sheet, driven bow type silent chain sheet, roller can turn round the steel flexible structure, the staggered continuously revolution envelope that coincide that superposes of forming the different radii circle, form large tracts of land, share the positive pressure and the load of being born at many levels, synchronously consistent formation sealed belt push-and-pull transmission transmitting movement or power.Thereby whole purpose of the present invention and task on hold and envelope chain, have been realized.
8. realize purpose of the present invention and task from the general design of envelope gear
8.1. the failure cause of gear and form.
8.1.1 the irregularity of transmission and live load increase;
8.1.2 when chain entered and withdraw from engagement, the relative rotation of chain internode increased, and made the wearing and tearing aggravation of hinge;
8.1.3 the circumferential force of chain increases, and quickens the loss of chain.
8.1.4 the main failure forms of gear is wearing and tearing, plastic deformation and the fracture of gear tooth.Because chain gear is the open type transmission, so gear is also especially easily at tooth force one lateral wearing.When chain was jumped tooth because of the wearing and tearing elongation and climbed on the gear teeth, the tooth top part easily ruptured.
8.1.5 the driving gear number of teeth is very few.
8.1.6 gear is especially easily at tooth force one lateral wearing, and the opposite side wearing and tearing that do not stress are little.
8.1.7 in addition because gear heat treatment is bad, the plastic deformation of the gear teeth then easily takes place in the Hardness on Gear Teeth Surface deficiency during overload.
8.2 the design of envelope gear:
The service life of envelope gear is more much longer than envelope chain, therefore the envelope gear mainly is to carry out equilibrium according to the working ability of envelope chain when the design to allocate, just hold and envelope chain intensity and reliability are increased, depend primarily on strength at repeated alternation or the impact fatigue intensity of roller and the coupling and the adaptation of envelope gear of carrier bar.
8.2.1 partly and with the tangent middle part of tooth root circle be designed to can normal engaged and the toothed wheel profile of disengaging for the tooth top of envelope gear, tooth top partly profile of tooth can be designed to symmetrical profile of tooth be that involute gear profile, synchronizing jugged, ratchet type, sawtooth pattern, profile of tooth such as trapezoidal and asymmetric profile of tooth are profiles of tooth such as synchronizing jugged, ratchet type, sawtooth pattern.
8.2.2 tooth root circle partly still keeps the chain-drive contour shape, the shape and the tooth-formation of gear profile of driven bow type silent chain sheet bottom profiled part and roller profile coincide.Respectively with enter hold and envelope chain master in the meshing zone profile of tooth and drive bow type silent chain sheet, drive as the axle center around bearing pin and be about to enter that main in the tooth-formation of gear drives bow type silent chain sheet, driven bow type silent chain sheet directly buckles in the sprocket profile of tooth of gear around the axle center rotation, does not almost have the meshing interference phenomenon.
8.2.3 gear is especially easily at tooth force one lateral wearing, and the opposite side wearing and tearing that do not stress are little.Make full use of this use characteristic, adopt the asymmetrical design teeth outline, teeth outline is designed to nibble from drive wire and pressure line, tooth root circle can be processed into two circular arcs, nibble from drive wire and pressure line and be processed into oblique line, nibbling between drive wire and pressure line two oblique lines is an angle (being generally acute angle), two oblique line intersections are circular arc, tooth root circle two circular arc lines with nibble from drive wire and pressure line tangent.Virgule is for nibbling from drive wire, and long oblique line is a pressure line.Nibble to be processed into from drive wire and drive skew lines, involute and other curve (being generally short-term as shown in Figure 1), pressure line is processed into oblique line, involute and other is more convenient for engaging-in and throws off other curve (being generally long line as shown in Figure 1).The crown of profile of tooth partly is offset to nibbling from the drive wire direction.As: side-play amount is more than the 1-1.6mm 12.7 pitches, and the greatest wear amount of regular link is [h
p]
Max=0.03p, the abrasion loss of chain=0.03 * 12.7=0.38.After adopting hold and envelope chain and transmission gear, thus the single-unit elongation of the chain link that causes because of wearing and tearing when chain, as long as in 1-1.6mm the time all in gear mesh line engagement range, just can directly enter pressure line, mesh nibble from.All can be under the guiding of traction external force and profile of tooth tooth angle automatically the cis-position engagement put in place, can not produce and jump tooth and take off defective such as tooth.
8.2.4 driving and driven transmission gear profile of tooth central authorities are processed with circular groove, avoid strengthening the friction and the interference of carrier bar and gear.
8.2.5 adopt carburizing and quenching or electro-high-frequency hardening in this external gear again heat treatment, improve quenching hardness, effect is just better.The realization of above-mentioned multiple invention scheme, upward the worn-down degree is dropped to minimum state from joggleword base reason, avoided the envelope transmission gear in engagement process, to jump tooth and when the fracture of the caused tooth top part of climbing and overload, the plasticity change of the gear teeth etc. causes the defective of inefficacy.Form conjugation engagement jointly with hold and envelope chain, it is big to form loaded area, the drive mechanism of complete, the system that strong shock resistance, fatigue failure phase are long.
Effective combination of above-mentioned multiple embodiments just can reach, realizes and finish whole purpose of the present invention and task.
Concrete structure of the present invention and embodiment are provided by the following drawings:
Fig. 1 for the engagement of envelope formula messenger chain of the present invention and driving and driven transmission gear, nibble from principle of work and structural representation.
Fig. 2 is envelope formula messenger chain first embodiment of the present invention, and a basic structural unit structural front view in the symmetrical expression envelope messenger chain mainly is made up of arc carrier bar and bearing pin.
Fig. 3 is envelope formula messenger chain second embodiment of the present invention, and a composite structure block construction front view in the symmetrical expression envelope messenger chain mainly is made up of arc carrier bar, roller and bearing pin.
Fig. 4 is envelope formula messenger chain the 3rd embodiment of the present invention, and a composite structure block construction front view in the symmetrical expression envelope messenger chain mainly is made up of arc carrier bar, brace panel and bearing pin.
Fig. 5 is envelope formula messenger chain the 4th embodiment of the present invention, and a composite structure block construction front view in the symmetrical expression envelope messenger chain mainly is made up of arc carrier bar, brace panel, roller and bearing pin.
Fig. 6 is envelope formula messenger chain the 5th embodiment of the present invention, and a basic structural unit structural front view in the asymmetric formula envelope messenger chain mainly is made up of arc carrier bar and bearing pin.
Fig. 7 is envelope formula messenger chain the 6th embodiment of the present invention, and a composite structure block construction front view in the asymmetric formula envelope messenger chain mainly is made up of arc carrier bar, roller and bearing pin.
Fig. 8 is envelope formula messenger chain the 7th embodiment of the present invention, and a composite structure block construction front view in the asymmetric formula envelope messenger chain mainly is made up of arc carrier bar, brace panel and bearing pin.
Fig. 9 is envelope formula messenger chain the 8th embodiment of the present invention, and a composite structure block construction front view in the asymmetric formula envelope messenger chain mainly is made up of arc carrier bar, brace panel, roller and bearing pin.
Figure 10 is envelope formula messenger chain the 9th embodiment of the present invention, and a basic structural unit structural front view in the symmetrical expression envelope messenger chain mainly is made up of arc carrier bar and bearing pin, in the wherein arc carrier bar annular bearing is housed.
Figure 11 is envelope formula messenger chain the tenth embodiment of the present invention, and a composite structure block construction front view in the symmetrical expression envelope messenger chain mainly is made up of arc carrier bar, brace panel and bearing pin, in the wherein arc carrier bar annular bearing is housed.
Figure 12 is envelope formula messenger chain the 11 embodiment of the present invention, and a composite structure block construction front view in the symmetrical expression envelope messenger chain mainly is made up of arc carrier bar, roller and bearing pin, in the wherein arc carrier bar annular bearing is housed.
Figure 13 is envelope formula messenger chain the 12 embodiment of the present invention, and a composite structure block construction front view in the symmetrical expression envelope messenger chain mainly is made up of arc carrier bar, brace panel, roller and bearing pin, in the wherein arc carrier bar annular bearing is housed.
Figure 14 is envelope formula messenger chain the 13 embodiment of the present invention, and a basic structural unit structural front view in the symmetrical expression envelope messenger chain mainly is made up of arc carrier bar and bearing pin, and the bearing pin in the wherein arc carrier bar is the swinging block hinge type.
Figure 15 is envelope formula messenger chain the 14 embodiment of the present invention, and a composite structure block construction front view in the symmetrical expression envelope messenger chain mainly is made up of arc carrier bar, brace panel and bearing pin, and the bearing pin in the wherein arc carrier bar is the swinging block hinge type.
Figure 16 is envelope formula messenger chain the 15 embodiment of the present invention, and a composite structure block construction front view in the symmetrical expression envelope messenger chain mainly is made up of arc carrier bar, roller and bearing pin, and the bearing pin in the wherein arc carrier bar is the swinging block hinge type.
Figure 17 is envelope formula messenger chain the 16 embodiment of the present invention, a composite structure block construction front view in the symmetrical expression envelope messenger chain, mainly be made up of arc carrier bar, brace panel, roller and bearing pin, the bearing pin in the wherein arc carrier bar is the swinging block hinge type.
Figure 18 is envelope formula messenger chain the 17 embodiment of the present invention, and a basic structural unit structural front view in the asymmetric formula envelope messenger chain mainly is made up of arc carrier bar and bearing pin, and the bearing pin in the wherein arc carrier bar is the lining tile hinge type.
Figure 19 is envelope formula messenger chain the 18 embodiment of the present invention, a composite structure block construction front view in the asymmetric formula envelope messenger chain, mainly be made up of arc carrier bar, brace panel and bearing pin, the bearing pin in the wherein arc carrier bar is the lining tile hinge type.
Figure 20 is the vertical view cutaway drawing of envelope formula messenger chain first of the present invention, five, nine, 13,17 embodiment.
Figure 21 is the vertical view cutaway drawing of envelope formula messenger chain the 4th, eight of the present invention, 12,16 embodiment.
Figure 22 is the vertical view cutaway drawing of envelope formula messenger chain second of the present invention, six, 11,15 embodiment.
Figure 23 is the vertical view cutaway drawing of envelope formula messenger chain the 4th, eight of the present invention, 12,16 embodiment.
Figure 24 is the vertical view cutaway drawing of envelope formula messenger chain the 4th, eight of the present invention, 12,16 embodiment.
Figure 25 is the vertical view cutaway drawing of envelope formula messenger chain the 4th, eight of the present invention, 12,16 embodiment.
Figure 26 is the vertical view cutaway drawing of envelope formula messenger chain the 9th of the present invention, 17 embodiment.
Figure 27 is the vertical view cutaway drawing of envelope formula messenger chain the tenth of the present invention, 18 embodiment.
Figure 28 is the vertical view cutaway drawing of envelope formula messenger chain the tenth of the present invention, 18 embodiment.
Figure 29 is the vertical view cutaway drawing of envelope formula messenger chain the 13 embodiment of the present invention.
Figure 30 is the vertical view cutaway drawing of envelope formula messenger chain the 14,16 embodiment of the present invention.
Figure 31 is the vertical view cutaway drawing of envelope formula messenger chain the 16 embodiment of the present invention.
Figure 32 for envelope formula messenger chain of the present invention first, second, third and fourth, the arc tooth shape chain board scheme drawing of symmetrical expression of nine, ten, 11,12,13,14,15,16 embodiment.
Figure 33 is the arc tooth shape chain board scheme drawing of asymmetric formula of envelope formula messenger chain the 5th, six, seven, eight of the present invention, 17,18 embodiment.
Figure 34 for envelope formula messenger chain of the present invention third and fourth, the reinforcement carrier bar scheme drawing of seven, eight, ten, 12,14,16,18 embodiment.
Figure 35 is the vertical view cutaway drawing of envelope formula messenger chain Figure 32, Figure 33, Figure 34.
Figure 36 is an envelope formula messenger chain second, four, six, eight, 11,12,15,16
The roller front view of embodiment.
Figure 37 is the right elevation of the roller of envelope formula messenger chain Figure 36.
Figure 38 is the arc tooth shape chain board scheme drawing of symmetrical expression of envelope formula messenger chain the 17,18 embodiment of the present invention.
Figure 39 is the arc tooth shape chain board scheme drawing of asymmetric formula of envelope formula messenger chain the 17,18 embodiment of the present invention.
Figure 40 is the reinforcement carrier bar scheme drawing of envelope formula messenger chain the 17,18 embodiment of the present invention.
Figure 41 for envelope formula messenger chain of the present invention first, second, third and fourth, the symmetrical expression profile of tooth enlarged diagram of the associated transfer gear of nine, ten, 11,12,13,14,15,16 embodiment.
Figure 42 is the asymmetric formula profile of tooth enlarged diagram of the associated transfer gear of envelope formula messenger chain the 5th, six, seven, eight of the present invention, 17,18 embodiment.
Figure 43 for envelope formula messenger chain of the present invention first, second, third and fourth, the assembling scheme drawing of the final gear of nine, ten, 11,12,13,14,15,16 embodiment.
Figure 44 for envelope formula messenger chain of the present invention first, second, third and fourth, the assembling scheme drawing of nine, ten, 11,12,13,14,15,16 embodiment from nutating gear.
Figure 45 is the assembling scheme drawing of the final gear of envelope formula messenger chain the 5th, six, seven, eight of the present invention, 17,18 embodiment.
Figure 46 is the assembling scheme drawing from nutating gear of envelope formula messenger chain the 5th, six, seven, eight of the present invention, 17,18 embodiment.
Figure 47 for envelope formula messenger chain of the present invention third and fourth, the assembling scheme drawing of the final gear of ten, 12,14,16 embodiment.
Figure 48 for envelope formula messenger chain of the present invention third and fourth, the assembling scheme drawing of ten, 12,14,16 embodiment from nutating gear.
Figure 49 for envelope formula messenger chain of the present invention first, second, third and fourth, the final gear profile of tooth of nine, ten, 11,12,13,14,15,16 embodiment is the left view of symmetrical expression.
Figure 50 for envelope formula messenger chain of the present invention first, second, third and fourth, the final gear profile of tooth of nine, ten, 11,12,13,14,15,16 embodiment is the front view of symmetrical expression.
Figure 51 is that the final gear profile of tooth of envelope formula messenger chain the 5th, six, seven, eight of the present invention, 17,18 embodiment is the left view of asymmetric formula.
Figure 52 is that the final gear profile of tooth of envelope formula messenger chain the 5th, six, seven, eight of the present invention, 17,18 embodiment is the front view of asymmetric formula
Figure 53 for envelope formula messenger chain of the present invention first, second, third and fourth, the driven transmission gear profile of tooth of nine, ten, 11,12,13,14,15, the 16 embodiment front view that is symmetrical expression.
Figure 54 for envelope formula messenger chain of the present invention first, second, third and fourth, the driven transmission gear profile of tooth of nine, ten, 11,12,13,14,15, the 16 embodiment left view that is symmetrical expression.
Figure 55 is the front view that the driven transmission gear profile of tooth of envelope formula messenger chain the 5th, six, seven, eight of the present invention, 17,18 embodiment is asymmetric formula.
Figure 56 is the left view that the driven transmission gear profile of tooth of envelope formula messenger chain the 5th, six, seven, eight of the present invention, 17,18 embodiment is asymmetric formula.
Below with reference to accompanying drawing embodiments of the invention are further described.
First embodiment of envelope formula messenger chain of the present invention is provided by Fig. 2, Figure 20, Figure 32, it is to be combined by several basic cell structures, each elementary cell: by bearing pin 3, two mainly drive arc silent chain sheet 2, two driven arc silent chain sheets 5 are formed.
The main top that drives arc silent chain sheet 2, driven arc silent chain sheet 5 is arc or straight line, left and right each is rounded, respectively there is a pin shaft hole in circular central authorities, and the recess between pin shaft hole and two circles are tangent is symmetric figure involute internal tooth form shape, and two toothed surface junctions are circular arc.
Second embodiment of envelope formula messenger chain of the present invention is provided by Fig. 3, Figure 22, Figure 32, Figure 36, Figure 37.Different with first embodiment is to have increased roller 4 in an elementary cell.Pass driven arc silent chain sheet 5, roller 4, main arc silent chain sheet 2, the driven arc silent chain sheet 5 of driving in regular turn by bearing pin 3.All the other and first embodiment are identical, here give unnecessary details no longer one by one.
The 3rd embodiment of envelope formula messenger chain of the present invention is provided by Fig. 4, Figure 25, Figure 34, Figure 35.Different with first embodiment is to have increased reinforcement carrier bar 8 in an elementary cell.Form by two kinds of versions.First kind of array configuration passed reinforcement carrier bar 8, driven arc silent chain sheet 5, main arc silent chain sheet 2, main arc silent chain sheet 2, driven arc silent chain sheet 5, the reinforcement carrier bar 8 of driving of driving in regular turn by bearing pin 3; Second kind of array configuration is to pass driven arc silent chain sheet 5, main arc silent chain sheet 2, reinforcement carrier bar 8, main arc silent chain sheet 2, the driven arc silent chain sheet 5 of driving of driving in regular turn by bearing pin 3.All the other and first embodiment are identical, here give unnecessary details no longer one by one.
The 4th embodiment of envelope formula messenger chain of the present invention is provided by Fig. 5, Figure 21, Figure 32, Figure 34, Figure 35, Figure 36, Figure 37.Different with first embodiment is to have increased roller 4, reinforcement carrier bar 8 in an elementary cell.Pass reinforcement carrier bar 8, driven arc silent chain sheet 5, roller 4, main arc silent chain sheet 2, main arc silent chain sheet 2, roller 4, driven arc silent chain sheet 5, the reinforcement carrier bar 8 of driving of driving in regular turn by bearing pin 3.All the other and first embodiment are identical, here give unnecessary details no longer one by one.
The 5th embodiment of envelope formula messenger chain of the present invention is provided by Fig. 6, Figure 20, Figure 33.Different with first embodiment is in an elementary cell, and main arc silent chain sheet 2,5, two circles of the driven arc silent chain sheet recess between tangent that drives is ratchet castellated shape in the asymmetric shape, and two toothed surface intersections are circular arc.All the other and first embodiment are identical, here give unnecessary details no longer one by one.
The 6th embodiment of envelope formula messenger chain of the present invention is provided by Fig. 7, Figure 25, Figure 33, Figure 36, Figure 37.Different with first embodiment is in an elementary cell, and main arc silent chain sheet 2,5, two circles of the driven arc silent chain sheet recess between tangent that drives is ratchet castellated shape in the asymmetric shape, and two toothed surface intersections are circular arc.Pass driven arc silent chain sheet 5, roller 4, main arc silent chain sheet 2, the driven arc silent chain sheet 5 of driving in regular turn by bearing pin 3, all the other and first embodiment are identical, here give unnecessary details no longer one by one.
The 7th embodiment of envelope formula messenger chain of the present invention is provided by Fig. 8, Figure 25, Figure 33, Figure 34, Figure 35.Different with first embodiment is in an elementary cell, and main arc silent chain sheet 2,5, two circles of the driven arc silent chain sheet recess between tangent that drives is ratchet castellated shape in the asymmetric shape, and two toothed surface intersections are circular arc.Be made up of two kinds of versions, first kind of array configuration passed reinforcement carrier bar 8, driven arc silent chain sheet 5, main arc silent chain sheet 2, main arc silent chain sheet 2, driven arc silent chain sheet 5, the reinforcement carrier bar 8 of driving of driving in regular turn by bearing pin 3; Second kind of array configuration is to pass driven arc silent chain sheet 5, main arc silent chain sheet 2, reinforcement carrier bar 8, main arc silent chain sheet 2, the driven arc silent chain sheet 5 of driving of driving in regular turn by bearing pin 3.All the other and first embodiment are identical, here give unnecessary details no longer one by one;
The 8th embodiment of envelope formula messenger chain of the present invention is provided by Fig. 9, Figure 21, Figure 23, Figure 24, Figure 33-Figure 37.Different with first embodiment is in an elementary cell, and main arc silent chain sheet 2,5, two circles of the driven arc silent chain sheet recess between tangent that drives is ratchet castellated shape in the asymmetric shape, and two toothed surface intersections are circular arc.Be made up of three kinds of versions, first kind of array configuration is brace panel middle structure, is mainly used in general load and light load.See Fig. 5, Figure 21.Pass driven arc silent chain sheet 5, roller 4, main arc silent chain sheet 2, reinforcement carrier bar 8, main arc silent chain sheet 2, driven arc silent chain sheet 5, roller 4, the driven arc silent chain sheet 5 of driving of driving in regular turn by bearing pin 3; Second kind of array configuration is the brace panel outlet structure, is mainly used in moderate duty.See Fig. 5, Figure 23.Be to pass reinforcement carrier bar 8, driven arc silent chain sheet 5, roller 4, main arc silent chain sheet 2, roller 4, main arc silent chain sheet 2, driven arc silent chain sheet 5, the reinforcement carrier bar 8 of driving of driving in regular turn by bearing pin 3; The third array configuration is the inside and outside formula structure of putting of brace panel, is mainly used in big load.Seeing Fig. 5, Figure 23, is to pass reinforcement carrier bar 8, driven arc silent chain sheet 5, roller 4, main arc silent chain sheet 2, roller 4, main arc silent chain sheet 2, driven arc silent chain sheet 5, the reinforcement carrier bar 8 of driving of driving in regular turn by bearing pin 3.All the other and first embodiment are identical, here give unnecessary details no longer one by one;
The 9th embodiment of envelope formula messenger chain of the present invention is provided by Figure 10, Figure 26, Figure 32.Different with first embodiment is to have increased anti-friction bearing 10 in the arc silent chain sheet 2 of main driving in a basic cell structure, driven arc silent chain sheet 5, the endoporus, is mainly used in heavy load and alleviates the carrier bar wearing and tearing.All the other and first embodiment are identical, here give unnecessary details no longer one by one.
The tenth embodiment of envelope formula messenger chain of the present invention is provided by Figure 11,27,28,34, Figure 35.Different with the 3rd embodiment is to have increased anti-friction bearing 10 in the arc silent chain sheet 2 of main driving in a basic cell structure, driven arc silent chain sheet 5, the endoporus, be mainly used in heavy load and alleviate the carrier bar wearing and tearing, all the other and the 3rd embodiment are identical, here give unnecessary details no longer one by one.
The 11 embodiment of envelope formula messenger chain of the present invention is provided by Figure 12, Figure 36, Figure 37.Different with second embodiment is to have increased anti-friction bearing 10 in the arc silent chain sheet 2 of main driving in a basic cell structure, driven arc silent chain sheet 5, the endoporus, is mainly used in heavy load and alleviates the carrier bar wearing and tearing.All the other and second embodiment are identical, here give unnecessary details no longer one by one.
The 12 embodiment of envelope formula messenger chain of the present invention is provided by Figure 13, Figure 32, Figure 34-Figure 37.Different with the 4th embodiment is to have increased anti-friction bearing 10 in the arc silent chain sheet 2 of main driving in a basic cell structure, driven arc silent chain sheet 5, the endoporus, is mainly used in heavy load and alleviates the carrier bar wearing and tearing.All the other and the 4th embodiment are identical, here give unnecessary details no longer one by one.
The 13 embodiment of envelope formula messenger chain of the present invention is provided by Figure 14, Figure 32.Different with first embodiment is not have bearing pin in the arc silent chain sheet 2 of main driving in a basic cell structure, driven arc silent chain sheet 5, the endoporus, hinge is made up of two curved surface cylinders 11, curved surface cylinder 11 is fixed in the corresponding chain film perforation separately, when two adjacent chain links are pass on when moving relatively, the driving surface of two curved surface cylinders 11 is done to roll relatively, because load replaces cliding friction with friction of rolling, so friction resistance significantly reduces along the complete wide rectangular distribution of chain.Be mainly used in heavy load and precision drive.All the other and first embodiment are identical, here give unnecessary details no longer one by one.
The 14 embodiment of envelope formula messenger chain of the present invention is provided by Figure 15, Figure 32, Figure 34, Figure 35.Different with the 13 embodiment is to have increased reinforcement carrier bar 8 in an elementary cell.Be made up of three kinds of versions, first kind of array configuration is brace panel middle structure, is mainly used in general load and light load.Pass driven arc silent chain sheet 5, main arc silent chain sheet 2, reinforcement carrier bar 8, main arc silent chain sheet 2, driven arc silent chain sheet 5, the driven arc silent chain sheet 5 of driving of driving in regular turn by two curved surface cylinders 11; Second kind of array configuration is the brace panel outlet structure, is mainly used in moderate duty.Be to pass reinforcement carrier bar 8, driven arc silent chain sheet 5, main arc silent chain sheet 2, main arc silent chain sheet 2, driven arc silent chain sheet 5, the reinforcement carrier bar 8 of driving of driving in regular turn by two curved surface cylinders 11; The third array configuration is the inside and outside formula structure of putting of brace panel, is mainly used in big load.Be to pass reinforcement carrier bar 8, driven arc silent chain sheet 5, main arc silent chain sheet 2, main arc silent chain sheet 2, driven arc silent chain sheet 5, the reinforcement carrier bar 8 of driving of driving in regular turn by two curved surface cylinders 11.All the other and the 13 embodiment are identical, here give unnecessary details no longer one by one.
The 15 embodiment of envelope formula messenger chain of the present invention is provided by Figure 16, Figure 32, Figure 36, Figure 37.Different with the 13 embodiment is to have increased roller 4 in an elementary cell.Pass driven arc silent chain sheet 5, roller 4, the arc silent chain sheet 2 of main driving in regular turn by two curved surface cylinders 11.Driven arc silent chain sheet 5, all the other and the 13 embodiment are identical, here give unnecessary details no longer one by one.
The 16 embodiment of envelope formula messenger chain of the present invention is provided by Figure 17, Figure 32, Figure 34-Figure 37.Different with the 14 embodiment is to have increased roller 4 in an elementary cell.Be made up of three kinds of versions, first kind of array configuration is brace panel middle structure, is mainly used in general load and light load.Pass driven arc silent chain sheet 5, roller 4, main arc silent chain sheet 2, reinforcement carrier bar 8, main arc silent chain sheet 2, driven arc silent chain sheet 5, roller 4, the driven arc silent chain sheet 5 of driving of driving in regular turn by two curved surface cylinders 11; Second kind of array configuration is the brace panel outlet structure, is mainly used in moderate duty.Be to pass reinforcement carrier bar 8, driven arc silent chain sheet 5, roller 4, main arc silent chain sheet 2, roller 4, main arc silent chain sheet 2, driven arc silent chain sheet 5, the reinforcement carrier bar 8 of driving of driving in regular turn by two curved surface cylinders 11; The third array configuration is the inside and outside formula structure of putting of brace panel, is mainly used in big load.Be to pass reinforcement carrier bar 8, driven arc silent chain sheet 5, roller 4, main arc silent chain sheet 2, roller 4, main arc silent chain sheet 2, driven arc silent chain sheet 5, the reinforcement carrier bar 8 of driving of driving in regular turn by two curved surface cylinders 11.All the other and the 14 embodiment are identical, here give unnecessary details no longer one by one.
The 17 embodiment of envelope formula messenger chain of the present invention is provided by Figure 18, Figure 33.Different with the 9th embodiment is that there is each one of length fan groove both sides in the arc silent chain sheet 2 of main driving in a basic cell structure, driven arc silent chain sheet 5, the pin-and-hole, and the adjacent chain sheet is alternately left and right on same bearing pin.The bearing pin of packing in the pin-and-hole, and in the short groove of bearing pin both sides, embed friction tight with it bearing shell.Formed a hinge by two bearing shells and a bearing pin like this.When two adjacent chain links relatively rotated, left and right sides bearing shell was swung each in its elongated slot, and two bearing shell inside faces slide along the bearing pin surface.Because to equal chain wide for bearing shell length, bearing area is big, and pressure is little, the load ratio round pin formula that can transmit greatly.Be mainly used in heavy load and precision drive.All the other and the 9th embodiment are identical, here give unnecessary details no longer one by one.
The 18 embodiment of envelope formula messenger chain of the present invention is provided by Figure 19, Figure 33-Figure 35.Different with the 17 embodiment is to have increased reinforcement carrier bar 8 in an elementary cell.Be made up of three kinds of versions, first kind of array configuration is brace panel middle structure, is mainly used in general load and light load.Pass driven arc silent chain sheet 5, main arc silent chain sheet 2, reinforcement carrier bar 8, main arc silent chain sheet 2, driven arc silent chain sheet 5, the driven arc silent chain sheet 5 of driving of driving in regular turn by bearing pin 3; Second kind of array configuration is the brace panel outlet structure, is mainly used in moderate duty.Be to pass reinforcement carrier bar 8, driven arc silent chain sheet 5, main arc silent chain sheet 2, main arc silent chain sheet 2, driven arc silent chain sheet 5, the reinforcement carrier bar 8 of driving of driving in regular turn by bearing pin 3; The third array configuration is the inside and outside formula structure of putting of brace panel, is mainly used in big load.Be to pass reinforcement carrier bar 8, driven arc silent chain sheet 5, main arc silent chain sheet 2, main arc silent chain sheet 2, driven arc silent chain sheet 5, the reinforcement carrier bar 8 of driving of driving in regular turn by bearing pin 3.All the other and the 17 embodiment are identical, here give unnecessary details no longer one by one.
Envelope formula transmission gear of the present invention divides two kinds of symmetric figure and asymmetric shapes.
Symmetric figure envelope formula transmission gear is seen Figure 49, Figure 50, Figure 41, Figure 53, Figure 54.The tooth root circle of gear is partly measured circular arc, and the symmetric figure castellated shape is formed at crown and middle part, and castellated shape can be processed into involute gear profile, synchronizing jugged, ratchet type, sawtooth pattern, profile of tooth such as trapezoidal.What the embodiment of the invention was selected for use is involute gear profile.The symmetrical profile of tooth that driving and driven transmission gear crown and middle part are formed partly and second circular arc of both sides partly fit like a glove consistently with main bow type silent chain sheet 2, driven bow type silent chain sheet 5 indent profiles of tooth and two ends, the bottom circular arc of driving respectively, it is identical consistent with roller that the tooth root of transmission gear partly is circular arc.
Asymmetric shape envelope formula transmission gear is seen Fig. 1, Figure 51, Figure 52, Figure 42, Figure 55, Figure 56.The tooth root circle of gear partly is circular arc, and asymmetric shape castellated shape is formed at crown and middle part, profile of tooth such as that castellated shape can be processed into is synchronizing jugged, ratchet type, sawtooth pattern.What the embodiment of the invention was selected for use is ratchet-shaped.The asymmetric profile of tooth that driving and driven transmission gear 2,6 crowns and middle part are formed partly and second circular arc of both sides partly fit like a glove consistently with main bow type silent chain sheet 2, driven bow type silent chain sheet 5 indent profiles of tooth and two ends, the bottom circular arc of driving respectively, it is identical consistent with roller that the tooth root of transmission gear partly is circular arc.Adopt the asymmetrical design teeth outline, teeth outline is designed to nibble from drive wire and pressure line, tooth root circle can be processed into nibbling from drive wire and pressure line of two circular arcs, present embodiment and be processed into skew lines, nibbling between drive wire and pressure line two oblique lines is an angle (being generally acute angle), two oblique line intersections are circular arc, tooth root circle two circular arc lines with nibble from drive wire and pressure line tangent.Virgule is for nibbling from drive wire, and long oblique line is a pressure line.Nibble from drive wire and be processed into driving skew lines (being generally short-term as shown in Figure 1), pressure line is processed into oblique line (being generally long line as shown in Figure 1).The engagement that its angle and length are satisfied with it drives requirement; Long oblique line is the clutch side, and it mainly is that effect is that engagement when guarantee chain does not have interference.The crown of profile of tooth partly is offset to nibbling from the drive wire direction.General side-play amount is more than the 1-1.6mm.The greatest wear amount of regular link is [h
p]
Max=0.03p is as the abrasion loss of the chain of 12.7 pitches=0.03 * 12.7=0.38.After adopting hold and envelope chain and transmission gear, thus the single-unit elongation of the chain link that causes because of wearing and tearing when chain, as long as in 1-1.6mm the time all in gear mesh line engagement range, just can directly enter pressure line, mesh nibble from.All can be under the guiding of traction external force and profile of tooth tooth angle automatically the cis-position engagement put in place, can not produce and jump tooth and take off defective such as tooth.
The profile of tooth direction of driving and driven gear 2,6 is opposite, relatively on the contrary assembling.Driving and driven transmission gear 2,6 profile of tooth central authorities are processed with circular groove, prevent to strengthen carrier bar when transmission and gear body friction and interfering.
The present invention is provided by Fig. 1, Figure 43, Figure 44 by first embodiment of the driving system that envelope formula messenger chain and the combination of envelope formula transmission gear form, first embodiment, the 5th embodiment, the 9th embodiment, the 13 embodiment, the 17 embodiment and envelope formula transmission symmetry and asymmetric gear combination by envelope formula messenger chain form, (seeing Figure 49-56), Figure 43, Figure 44 are the section-drawings of drive mechanism, Figure 43 is the main drive mechanism that drives, and Figure 44 is driven driving drive mechanism.
In the system basic cell structure of envelope formula messenger chain by bearing pin 3 connect in regular turn main drive bow type silent chain sheet 2, driven bow type silent chain sheet 5 each two form; Transmission gear is made up of main driven wheel 1 and driven gear 6 in the system.
The hole close fit assembling of the bearing pin 3 in basic cell structure and driven bow type silent chain sheet 5, the main bow type silent chain sheet 2 that drives can freely rotate around bearing pin 3, main drive bow type silent chain sheet 2, driven bow type silent chain sheet 5 respectively with applyings that fit like a glove of the profile of tooth of main driven wheel 1 and driven gear 6, and separately on the identical single crown portion profile of tooth that is fitted in master and slave driven wheel of staggered stack; The tooth root circular arc portion of gear partly coincide and meshes with main driving bow type silent chain sheet 2, driven bow type silent chain sheet about 5 circular arcs; The tooth root circular arc portion of gear coincide with roller 4 again and meshes.Can center on respectively to mesh when bearing pin 3 rotates in a profile of tooth and enter in another profile of tooth.Form the identical flexible drive mechanism of revolution envelope steel that connects of the linear continuously staggered stack of different radii circle.Form large tracts of land, share the positive pressure and the load of being born at many levels, synchronously consistent formation sealed belt push-and-pull transmission transmitting movement or power.When particularly adopting asymmetric profile of tooth, can be under the situation of almost not having meshing interference, directly finishing coincide fits.Prolong service life at double.Thereby whole purpose of the present invention and task have been realized.
The present invention makes up second embodiment of the driving system that forms by Fig. 1 by envelope formula messenger chain and envelope formula transmission gear, Figure 45, Figure 46 provides, the 3rd embodiment (see figure 4) by envelope formula messenger chain, the 7th embodiment (see figure 8), the tenth embodiment (seeing Figure 11), the 14 embodiment (seeing Figure 15), the 18 embodiment (seeing Figure 19) and envelope formula transmission symmetry and asymmetric gear combination form, (seeing Figure 49-56), Figure 45, Figure 46 is the section-drawing of drive mechanism, Figure 45 is the main drive mechanism that drives, and Figure 46 is driven driving drive mechanism.A recombiner unit structure of envelope formula messenger chain connects two main bow type silent chain sheets, two driven bow type silent chain sheets, two of driving in regular turn by bearing pin and strengthens carrier bars and form.Second embodiment of driving system has just increased the reinforcement carrier bar, has increased tensile strength, is suitable for heavy load and precision drive.All the other and first embodiment are identical, here give unnecessary details no longer one by one.
The present invention is provided by Fig. 1, Figure 47, Figure 48 by the 3rd embodiment of the driving system that envelope formula messenger chain and the combination of envelope formula transmission gear form, the 4th embodiment (see figure 5), the 8th embodiment (see figure 9), the 12 embodiment (seeing Figure 13), the 16 embodiment (seeing Figure 17) and envelope formula transmission symmetry and asymmetric gear combination by envelope formula messenger chain form, (seeing Figure 49-56), Figure 47, Figure 48 are the section-drawings of drive mechanism, Figure 47 is the main drive mechanism that drives, and Figure 48 is driven driving drive mechanism.A recombiner unit structure of envelope formula messenger chain connects two rollers, two in regular turn by bearing pin and strengthens that carrier bars, two mainly drive bow type silent chain sheets, two driven bow type silent chain sheets are formed.The 3rd embodiment of driving system has just increased roller and has strengthened carrier bar, has increased tensile strength and resistance to abrasion, has reduced around the property distortion, is suitable for heavy load and precision drive.All the other and first embodiment are identical, here give unnecessary details no longer one by one.
The foregoing description is formed various embodiment of the present invention respectively, and the embodiment of the invention is especially used in the driving system of motor bike and obtained abundant confirmation.The motor bike driving system has certain particularity; service conditions is abominable; higher (the general γ≤10m/s) of linear velocity; load change is big, and also has the shar pounding vibration, and road windward sand-lime dirt is many in addition; overcast and rainy ground mire; lubricating condition is also poor, is difficult to again accomplish to use meticulously and protect, and generally travels about 5,000 kilometers.After using the present invention, stable drive, efficient height, use reliable, the distance of travelling to increase to more than 20,000 kilometers.Purpose of the present invention and task have been realized fully.
Claims (8)
1, a kind of envelope formula messenger chain and associated transfer gear, comprise messenger chain and transmission gear, a basic structural unit of messenger chain is to be driven bow type silent chain sheet, driven bow type silent chain sheet dislocation layering stack and connected in regular turn by bearing pin by main more than one or one to combine; It is characterized in that, the main top that drives bow type silent chain sheet, driven bow type silent chain sheet is arc or straight line, about portion rounded, respectively there is a pin shaft hole in two circular central authorities, the internal tooth form of recess fits like a glove consistent with the profile of tooth of transmission gear between two rounded lower portion.
2, by claim 1 described envelope formula messenger chain and associated transfer gear, it is characterized in that, basic structural unit by bearing pin connect in regular turn mainly more than one drive bow type silent chain sheet, driven bow type tooth shape chain board more than, one form with upper reinforcing plate.
3,, it is characterized in that by claim 2 described envelope formula messenger chain and associated transfer gear: basic structural unit by bearing pin connect in regular turn one with upper roller, one with upper reinforcing plate, mainly more than one drive bow type silent chain sheet, driven bow type tooth shape chain board is formed more than one.
4, by claim 1 described envelope formula messenger chain and associated transfer gear, it is characterized in that: the main internal tooth form of bottom recess that drives about bow type silent chain sheet, driven bow type silent chain sheet between two circles of portion is an involute gear profile or for synchronizing jugged or for ratchet type or for trapezoidal toothed; Its profile of tooth symmetry or asymmetric.
5, by claim 1 described envelope formula messenger chain and associated transfer gear, it is characterized in that: the profile of tooth of transmission gear is an involute gear profile or for synchronizing jugged or for ratchet type or for trapezoidal toothed; Its profile of tooth symmetry or asymmetric.
6, by claim 4 described envelope formula messenger chain and associated transfer gear, it is characterized in that: the asymmetric profile of tooth of main driving bow type silent chain sheet is opposite with the direction of the asymmetric profile of tooth of driven bow type silent chain sheet in a basic structural unit of messenger chain.
7, by claim 5 described envelope formula messenger chain and associated transfer gear, it is characterized in that: the profile of tooth of transmission gear is asymmetric shape, and the profile of tooth of driving gear is opposite with the profile of tooth direction of driven gear.
8, by claim 3 described envelope formula messenger chain and associated transfer gear, it is characterized in that: the roller cylindrical coincide consistent with the main circular arc that drives bow type silent chain sheet, two ends, driven bow type silent chain sheet bottom.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00106351 CN1185150C (en) | 2000-05-26 | 2000-05-26 | Contained envelope-type drive chain and its drive gear |
| PCT/CN2001/000813 WO2001092758A1 (en) | 2000-05-26 | 2001-05-18 | A containing and envelop transmission chain and gear |
| AU2001273808A AU2001273808A1 (en) | 2000-05-26 | 2001-05-18 | A containing and envelop transmission chain and gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00106351 CN1185150C (en) | 2000-05-26 | 2000-05-26 | Contained envelope-type drive chain and its drive gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1291580A CN1291580A (en) | 2001-04-18 |
| CN1185150C true CN1185150C (en) | 2005-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00106351 Expired - Fee Related CN1185150C (en) | 2000-05-26 | 2000-05-26 | Contained envelope-type drive chain and its drive gear |
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| Country | Link |
|---|---|
| CN (1) | CN1185150C (en) |
| AU (1) | AU2001273808A1 (en) |
| WO (1) | WO2001092758A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10236705B9 (en) * | 2002-08-09 | 2006-06-29 | Rexroth Mecman Gmbh | Transport toothed chain with reduced height wear |
| CN102226483A (en) * | 2011-05-25 | 2011-10-26 | 犹云 | Mechanical full-sealed remote driving device |
| NL2014241B1 (en) * | 2015-02-05 | 2016-10-12 | Rexnord Flattop Europe Bv | Modular conveyor. |
| CN108506419A (en) * | 2017-02-24 | 2018-09-07 | 东莞超汇链条有限公司 | Silent chain outer plate piece type structure design |
| CN107352231B (en) * | 2017-07-18 | 2022-12-02 | 吴宝东 | Spiral conveying net chain |
| CN108061134B (en) * | 2018-01-11 | 2023-10-03 | 吉林大学 | Double-sided meshed single-toothed chain transmission system |
| CN109213075B (en) * | 2018-10-10 | 2021-06-22 | 常州大学 | Control system and control method for numerical control deep hole drilling machine |
| CN114308746B (en) * | 2021-10-27 | 2023-06-30 | 中国科学院光电技术研究所 | Cleaning device for optical system of mid-infrared spectrum analyzer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06682Y2 (en) * | 1988-06-15 | 1994-01-05 | 大同工業株式会社 | chain |
| US5445570A (en) * | 1994-02-15 | 1995-08-29 | Borg-Warner Automotive, Inc. | Chain guide link |
| US5921881A (en) * | 1996-11-21 | 1999-07-13 | Shimano, Inc. | Narrow bicycle chain with inner links that receive sprocket teeth within a bottom recess |
| JPH10259857A (en) * | 1997-03-19 | 1998-09-29 | Tsubakimoto Chain Co | Both-side meshing type scilent chain |
-
2000
- 2000-05-26 CN CN 00106351 patent/CN1185150C/en not_active Expired - Fee Related
-
2001
- 2001-05-18 AU AU2001273808A patent/AU2001273808A1/en not_active Abandoned
- 2001-05-18 WO PCT/CN2001/000813 patent/WO2001092758A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001092758A1 (en) | 2001-12-06 |
| CN1291580A (en) | 2001-04-18 |
| AU2001273808A1 (en) | 2001-12-11 |
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