CN102287489A - Small tooth difference roller engagement transmission mechanism and speed reducer thereof - Google Patents
Small tooth difference roller engagement transmission mechanism and speed reducer thereof Download PDFInfo
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- CN102287489A CN102287489A CN2010106014739A CN201010601473A CN102287489A CN 102287489 A CN102287489 A CN 102287489A CN 2010106014739 A CN2010106014739 A CN 2010106014739A CN 201010601473 A CN201010601473 A CN 201010601473A CN 102287489 A CN102287489 A CN 102287489A
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Abstract
The invention relates to a novel transmission device. Through combining the engagement of a plurality of rows of chains and a plurality of rows of teeth in the chain and tooth transmission and the small tooth difference principle in the gear transmission, the large speed ratio and large torque variable speed transmission of multi-row and simultaneous multi-tooth engagement is realized. In the novel transmission device, a U groove wheel replaces an outer gear in the small tooth difference gear transmission, and column wheels replace an inner gear. The U groove wheel can be a single U groove wheel or can be formed by combining a plurality of U groove wheels, and the U groove wheel is provided with a plurality of U-shaped tooth grooves along the circumference. The column wheels are two rows or more than two rows of round wheels with a plurality of uniformly distributed slotted holes, rollers are distributed in the slotted holes and are positioned in the slotted holes, and the rollers roll or slide during transmission for avoiding the radial interference in the transmission. Therefore, small tooth difference transmission pairs of the U groove wheels and the column wheels through roller engagement are realized. A speed reducer utilizes the small tooth difference principle in the roller engagement, the large speed ratio and large torque output is realized, the structure is simple, the size is small, and the service life is long.
Description
Technical field
The present invention relates to a kind of new drive device, the few tooth difference principle of particularly a kind of combination, the driving mechanism and the speed reducer that adopt roller to mesh.
Background technique
The transmission shifting mechanism that tradition has had is generally by gear transmission, turbine worm transmission, cycloidal-pin wheel mechanism, sprocket wheel/chain transmission etc.Gear transmission can be adopted external tooth engagement or internal tooth engagement.External tooth engagement time total number of teeth in engagement is few, generally have only the modulus by increasing gear to increase driving torque, and mechanism's volume that large speed ratio output needs is big.Few tooth difference principle is adopted in interior engagement, and multiple tooth engagement can be arranged simultaneously, but inside and outside interference of tooth has restricted engaging tooth quantity in the transmission, is difficult to export especially big moment of torsion equally.Harmonic gear mechanism can overcome above-mentioned shortcoming, but because the flexbile gear of harmonic gear is made complexity, and the flexbile gear modulus should not be too big, therefore exports high pulling torque and be restricted.In addition, because gear-driven nominal pressure angle is 20 °, in the especially big moment of torsion of output, can decomposite sizable radial force, cause transmission efficiency low, the working life of bearing is short.Have only the transmission efficiency and the cost performance that improve gear by the quality that improves gear component accuracy of manufacturing and bearing at present.
The engagement transferring power of sprocket wheel and chain is adopted in the sprocket transmission, though adopt the mode of many row's chains, many toothrows can transmitting large torque, its gear ratio be little, can't realize the large speed ratio transmission.
Summary of the invention
An object of the present invention is combination gear transmission and sprocket (sprocket wheel/chain) transmission, adopt the mode of few tooth difference principle and many row's sprockets, a kind of brand-new few tooth difference roller engagement transmission mechanism is provided.
Second purpose of the present invention provides a kind of speed reducer that adopts above-mentioned few tooth difference roller engagement transmission mechanism, and its processing accessories is few, technology is simple, volume is little, speed ratio and output torque are big.
To achieve these goals, the invention provides following technological scheme:
A kind of few tooth difference roller engagement transmission mechanism, it comprises input shaft [1], the U sheave of forming gear pair with small teeth difference, post wheel [7] and roller [9], mesh transferring power by roller [9] between U sheave and the post wheel [7], input shaft [1] drives the U sheave, the U sheave has the U type teeth groove outside circumferential, it is characterized in that:
Described U sheave comprises a U sheave [8] and the 2nd U sheave [11] as the external gear of gear pair with small teeth difference; Described post wheel [7] is as the internal gear of gear pair with small teeth difference; Input shaft [1] drives the U sheave by eccentric body, and described eccentric body comprises first eccentric body [29] and second eccentric body [30];
Described post wheel [7] is combined side by side by discoid porous wheel more than two or two, between the porous wheel side by side axial spacing is arranged, all porous wheels are processed with n1 equally distributed slotted hole [41] along circumference, the described wheel of porous is side by side gone up relative slotted hole [41] and is formed upward platoon leader n1 hole of post wheel [7], and a roller [9] is housed in every platoon leader hole;
The U sheave that combination back forms the gear pair with small teeth difference engagement with the structure of post wheel [7] is: in the axial spacing between the porous that each U sheave is arranged in post wheel [7] is taken turns, a U sheave [8] and the 2nd U sheave [11] are assembled in the intermediate section of input shaft [1] respectively in axis bilateral symmetry off-centre by first eccentric body [29] and second eccentric body [30]; Post wheel [7] forms few tooth difference roller engagement of many rows by roller [9] and the teeth groove [38] on the U sheave;
Wherein, on the post wheel [7] platoon leader n1 hole is arranged, n2 toothrow groove is arranged on the U sheave, n2＜n1, its difference n1-n2 promptly are that the number of teeth in the gear pair with small teeth difference is poor, and n1, n2 are integers.
The U sheave is that teeth groove is the gear of U type, and a U sheave [8] and the 2nd U sheave [11] can be that one or more U sheaves make up side by side, and each U sheave is processed with n2 U type groove [38] along circumference, and relative U type groove [38] forms n2 toothrow groove on the U sheave side by side; A U sheave [8] of axis bilateral symmetry arranged off-centre and the 2nd U sheave [11] adopt same structure or etc. weighing body.
In every platoon leader hole [41] on the post wheel [7] roller [9] is housed; Roller [9] forms the engagement between post wheel [7] and the U sheave as " oscillating tooth " of internal gear.
Roller [9] is positioned in the slotted hole [41] by roller spring [32], can in slotted hole [41] radially little displacement be arranged, to avoid radial interference.
Roller spring [32] is fixed on the porous wheel of post wheel [7] by spring positioning screwn [33].
Roller spring [32] also can adopt cylindrical spring to be installed in the slotted hole [41].
Roller spring [32] can be butterfly spring, rubber spring, wire spring, heterotypic spring or leaf spring etc.
Post wheel [7] is fixed on main casing [6] inwall by post wheel key way [40].
There is axis hole [43] to be used for cooperating assembling in the middle of the U sheave, also has several output pin-and-holes [39] around this axis hole, be used for installing output guide [12] with roller bearing [28].
First eccentric body [29] and second eccentric body [30] for etc. offset, to eliminate the eccentric load that off-centre causes.
Eccentric body can be made up of a plurality of individual components, also can be integral type.
Eccentric body is one to have the eccentric annulus of keyway.
The U sheave can be an integral type U sheave, also can be the combination of a plurality of U sheaves.
Input shaft [1] is by going into end, intermediate section and go out end three part cylindrical bodys to form, its central lines, described first eccentric body [29] and second eccentric body [30] are installed in the intermediate section of input shaft [1], and the cylindrical body that input shaft [1] goes out end cooperates assembling by the 4th bearing [25] with the stomidium of going into of output shaft [14]; On the cylindrical body that input shaft [1] goes into to hold keyway is arranged, be connected with motor; Input shaft [1] goes into to hold cylindrical body to pass through clutch shaft bearing [3] and first seal ring [2] cooperates assembling with input end cap [4] center hole.
Direct setting-up eccentricity bearing on input shaft [1] intermediate section can reach the effect of setting-up eccentricity body and plain bearing equally.
The speed reducer of few tooth difference roller engagement transmission mechanism, be made up of few tooth difference roller engagement transmission mechanism and output mechanism, it is characterized in that: it comprises: main casing [6], input end cap [4], post wheel [7], a U sheave [8], the 2nd U sheave [11], roller [9], input shaft [1], first eccentric body [29], second eccentric body [30], output guide [12], output pin [13], output shaft [14], output shaft housing [17], output end cap [20] and bearing and seal ring;
Wherein lacking tooth difference roller engagement transmission mechanism comprises: input shaft [1], the U sheave of forming gear pair with small teeth difference, post wheel [7] and roller [9], mesh transferring power by roller [9] between U sheave and the post wheel [7], input shaft [1] drives the U sheave, the U sheave has the U type teeth groove outside circumferential, wherein:
Described U sheave comprises a U sheave [8] and the 2nd U sheave [11] as the external gear of gear pair with small teeth difference; Described post wheel [7] is as the internal gear of gear pair with small teeth difference; Input shaft [1] drives the U sheave by eccentric body, and described eccentric body comprises first eccentric body [29] and second eccentric body [30];
Described post wheel [7] is combined side by side by discoid porous wheel more than two or two, between the porous wheel side by side axial spacing is arranged, all porous wheels are processed with n1 equally distributed slotted hole [41] along circumference, the described wheel of porous is side by side gone up relative slotted hole [41] and is formed upward platoon leader n1 hole of post wheel [7], and a roller [9] is housed in every platoon leader hole;
The U sheave that combination back forms the gear pair with small teeth difference engagement with the structure of post wheel [7] is: in the axial spacing between the porous that each U sheave is arranged in post wheel [7] is taken turns, a U sheave [8] and the 2nd U sheave [11] are assembled in the intermediate section of input shaft [1] respectively in axis bilateral symmetry off-centre by first eccentric body [29] and second eccentric body [30]; Post wheel [7] forms few tooth difference roller engagement of many rows by roller [9] and the teeth groove [38] on the U sheave;
Wherein, on the post wheel [7] platoon leader n1 hole is arranged, n2 toothrow groove is arranged on the U sheave, n2＜n1, its difference n1-n2 promptly are that the number of teeth in the gear pair with small teeth difference is poor, and n1, n2 are integers;
Described few tooth difference roller engagement output mechanism is exported moment of torsion by output pin-and-hole [39], output guide [12], output pin [13] and the output shaft [14] of U sheave.
Main center line of input shaft [1] and output shaft [14] concentric.
The advantage of this invention is: by using the method for chain roller and sprocket engagement in the transmission of many row's sprockets, in conjunction with the principle of gear with small teeth difference transmission, can realize many rows and multiple tooth large speed ratio speed change transmission of meshing simultaneously.Substitute the external gear (eccentricity gear i.e. " U sheave ") of gear with small teeth difference transmission with the U sheave, substitute internal gear with the post wheel, be processed with many rows on the post wheel and have and wait the chain link slotted hole, roller (being equivalent to " oscillating tooth ") is arranged in the slotted hole each tooth on the alternative internal gear.In order to solve the radial interference of tooth and roller in the transmission of few tooth difference, roller can be done freely to roll or slide in slotted hole, interferes by back roller and can pass through the rapid return of spring.The width of slotted hole determines that according to the diameter of roller the length of slotted hole surpasses maximum radial interference amount.Flute profile pressure angle on this invention U sheave very little (being generally 0 °～5 °), and the flute profile pressure angle of traditional involute gear is 20 °, therefore the radial force that produces during engagement in this invention transmission is a few percent of conventional gears, helps improving the working life of bearing more than 10 times.
The present invention can be used for the deceleration or the speedup of large speed ratio, because this novel transmission mechanism has overcome many shortcomings of conventional gears transmission, its moment of torsion output no longer is subjected to the influence of the few or interference of tooth of total number of teeth in engagement, reaches multiple tooth and many rows and meshes simultaneously and transmit especially big moment of torsion; Lack the volume that tooth difference principle can be dwindled the large speed ratio speed reducer greatly simultaneously.
The present invention both can be used for speed reducer separately, also can be used to make the low-speed big motor.
Description of drawings
Fig. 1 is the plane structure chart of the few tooth difference roller engaging speed reducer of the present invention.
Fig. 2 is that half-sectional view is looked on the right side of Fig. 1
Fig. 3 is a single U sheave 8 planimetric maps.
The B-B sectional drawing of Fig. 3 .1 Fig. 3.
Fig. 3 .2 is the enlarged view of I on Fig. 3, the U type groove structure.
Fig. 4 is the porous wheel planimetric map that has a plurality of slotted holes 41.
Fig. 4 .1 is the C-C sectional drawing of Fig. 4.
Fig. 4 .2 is the post wheel 7 that is assembled by 3 porous wheels.
Fig. 5 is the planimetric map that a U sheave 8 and post wheel 7 mesh by roller 9.
Fig. 5 .1 is the partial enlarged drawing of I on Fig. 5, and roller 9 is by roller spring 32 location.
Fig. 6 is the planimetric map of output shaft 14.
Fig. 6 .1 is the left view of Fig. 6.
Reference character
Input shaft [1], first seal ring [2], clutch shaft bearing [3], input end cap [4], the first roller end cap [5], main casing [6], post wheel [7], the one U sheave [8], roller [9], pad [10], the 2nd U sheave [11], output guide [12], output pin [13], output shaft [14], second bearing [15], tank filler sleeve cap [16], output shaft housing [17], the 4th bearing [25], second seal ring [19], output end cap [20], axle sleeve [21], bearing guard ring [22], positioning ring [23], end ring [24], the 4th bearing [25], the second roller end cap [26], spacer ring [27], the 5th bearing [28], first eccentric body [29], second eccentric body [30], the 6th bearing [31], roller spring [32], spring positioning screwn [33], spacer ring [34], the outer ring washer [35] of bearing, housing bolt [36], bolt of cover [37], U type groove [38], output pin-and-hole [39], post wheel key way [40], slotted hole [41], pin-and-hole [42], axis hole [43].
Embodiment
The key problem in technology of few tooth difference roller engaging speed reducer of present embodiment is made up of two-part: one, few tooth difference roller engagement transmission mechanism, and two, the coaxial output mechanism of eccentric torque, introduce here respectively below,
One, few tooth difference roller engagement transmission mechanism
Combination by post wheel [7], a U sheave [8], the 2nd U sheave [11] and roller [9] realizes many rows and simultaneously multiple tooth roller engagement; Wherein, each U sheave is arranged in the axial spacing between the porous wheel of post wheel [7], and a U sheave [8] and the 2nd U sheave [11] are assembled in the intermediate section of input shaft [1] respectively in axis bilateral symmetry and off-centre by first eccentric body [29] and second eccentric body [30].For eliminating the eccentric load that off-centre causes, first eccentric body [29] is identical with the offset of second eccentric body [30], and a U sheave [8] of symmetrical arranged off-centre and the 2nd U sheave [11] adopt same structure or etc. weighing body.
The end of going into of input shaft [1] is installed in by clutch shaft bearing [3] in the intermediate hole of input end cap [4], and input end cap [4] is installed on the main casing [6].The end that goes out of input shaft [1] is installed in the deep hole that output shaft [14] goes into to hold the main center line of input shaft [1] and output shaft [14] concentric by the 4th bearing [25].
Roller [9] is installed in the slotted hole on the post wheel [7], and post wheel [7] is installed on main casing [6] inwall by key.U type groove [38] on the U sheave meshes with the roller [9] that post wheel [7] is gone up in the slotted hole [41].Roller [9] is equivalent to " oscillating tooth ", radially little displacement can be arranged, to avoid radial interference in slotted hole.
Two, the coaxial output mechanism of eccentric torque
Form by a U sheave [8], the 2nd U sheave [11], output pin [13], output guide [12] and output shaft [14], one end of output pin [13] is packed in the pin-and-hole [42] on the output shaft [14], and the other end is furnished with output guide [12] and is fit into by a U sheave [8] and the 2nd U sheave [11] and goes up in the overlapping hole of output pin-and-hole [39].The end that goes out of input shaft [1] is installed by the 4th bearing [25] in the input end deep hole of output shaft [14], the centre of output shaft [14] is by second bearing [15] and the 3rd bearing [18] the output shaft housing [17] of packing into, and output end cap [20] is connected by bolt of cover [37] with output shaft housing [17].
Above-mentioned output mechanism can also adopt related domain other eccentric output mechanisms commonly used or similar means to substitute, and does not influence the application's theme and spirit.
Introduce an embodiment of the few tooth difference roller engaging speed reducer of the present invention in detail below in conjunction with accompanying drawing.
As Fig. 1, present embodiment is few tooth difference roller speed reducer of one or three row U sheaves.The one U sheave [8] is single U sheave, the 2nd U sheave [11] is double U sheave, be arranged in the both sides of a U sheave [8], input shaft [1] is made up of three part cylindrical bodys, and the cylindrical body that input shaft [1] goes out end cooperates assembling by the 4th bearing [25] with the stomidium of going into of output shaft.Be processed with keyway on the cylindrical body that input shaft [1] goes into to hold, be connected with motor output shaft.Input shaft [1] goes into to hold cylindrical body to pass through clutch shaft bearing [3] and first seal ring [2] cooperates assembling with input end cap [4] center hole.First eccentric body [29] and second eccentric body [30] are installed on input shaft [1] the intermediate section cylindrical body, and its eccentric direction is along the axis bilateral symmetry.Be separately installed with the 5th bearing [28] and the 6th bearing [31] on first eccentric body [29] and second eccentric body [30], and cooperate assembling with the center hole of a U sheave [8] and the 2nd U sheave [11].
First seal ring [2] is a standard speed reducer seal ring, is used for preventing dust and anti-leakage of oil.
Clutch shaft bearing [3] can adopt common standard roller bearing, ball bearing or other bearing.
Input end cap [4] is a disc structure, and the centre is processed with the mounting hole of bearing [3] and seal ring [2], and the external diameter of disk is identical with main casing [6], and it is fastening with main casing [6] to import end cap [4] by housing bolt [36].
The first roller end cap [5] is a garden ring structure, adopts sunk screw to fix with post wheel [7], is used for preventing the axial motion of roller [9].
The inside of main casing [6] is cylindrical structure, and outer surface can adopt cylindrical body or tetragonal body etc.Be processed with a plurality of protruding keys on the inwall of main casing [6], be used for cooperating erection column wheel [7] with the keyway that post is taken turns on [7].End is processed with and imports the screw of end cap [4] and output shaft housing [17] assembling about main casing [6].
Post wheel [7], form side by side by 3 porous wheels, as shown in Figure 4, axial spacing between the porous wheel is a bit larger tham the axial thickness (0.05～0.5mm gap is arranged during installation usually) of tooth on the U sheave, be processed with a plurality of slotted holes on the porous wheel, the width of slotted hole determined by the diameter of roller [9], and length surpasses maximum radial amount of interference (after speed ratio and offset are determined, can obtain the maximum radial amount of interference by calculating).For easy for installation, be processed with on the post wheel [7] and main casing [6] quantity and the keyway that cooperates equally with main casing [6].Be processed with on the porous of the most left and rightmost side face of post wheel [7] is taken turns and be used for the screw of mounting spring positioning screwn [33].Post wheel [7] can be processed into an integral body, but in order to process with easy to assembly, also post can be taken turns [7] and resolve into several simple parts, as 3 independently porous wheel and 2 spacer rings.Adding is fixed together 3 porous wheels man-hour processes simultaneously with screw rod, to guarantee the machining accuracy unanimity of 3 porous wheels.Annulus and porous wheel with axial spacing between porous such as thickness the is wheel is assembled into an integral body then, assembles with main casing [6] again.The porous wheel quantity of post wheel [7] can be m, and m 〉=2, determines according to the size of output torque and the quantity of while engaging tooth during calculating.
The one U sheave [8], as Fig. 3, a plurality of teeth are arranged on the U sheave, it between the tooth U type groove [38], be used for post wheel [7] on roller [9] engagement, the U type that is shaped as of teeth groove is shown in Fig. 3 .2, width determines that by the diameter of roller the degree of depth is a bit larger tham the depth of engagement (depending primarily on offset) of teeth groove and roller.Axis hole [43] in the middle of the U sheave is used for cooperating assembling with roller bearing [28].The one U sheave [8] is processed with several output pin-and-holes [39], is used for installing output guide [12].The one U sheave [8] can have only single or a plurality of U sheave or its combination.
Roller [9] is a cylindrical body, is " oscillating tooth " of post wheel [7] and U sheave engagement.Locate by roller spring [32].Roller [9] will be done little skew in slotted hole [41] when running into radial interference, interfere when removing, will be by the rapid return of roller spring [32].To do pure rolling or slip during roller [9] engagement.
Pad [10] is a garden ring structure, is used for the axially locating between the U sheave.
The 2nd U sheave [11] has similar 26S Proteasome Structure and Function to a U sheave [8], can be single U sheave, also can be a plurality of U sheaves or its combination.In the present embodiment, a U sheave [8] is an integral type, and the 2nd U sheave [11] is made up of 2 U sheaves, and the overall weight of the 2nd U sheave [11] is identical with a U sheave [8].
Output guide [12] is a cylindrical structure, is used for reducing the friction of exporting on output pin [13] and the U sheave between the pin-and-hole [39].
Output pin [13] is a round column structure, is used for transmitting output torque.
Output shaft [14] as Fig. 6, is gone into end portion cylindrical body center and is processed with deep hole, and what be used for installing input shaft [1] goes out end and the 4th bearing [25].Go out to hold to be processed with keyway on the cylindrical body, be used for being connected with key on the outer load.Output shaft is processed with convex shoulder on [14], is used to install second bearing [15] and the 3rd bearing [18].The going into of output shaft [14] be processed with on the end face with the U sheave on the hole of equivalent amount, be used for installing output pin [13].
Second bearing [15] can adopt common standard roller bearing, ball bearing or other bearing.
Tank filler sleeve cap [16] can adopt the oil-hole screw of standard.
Output shaft housing [17] is to be used for output shaft [14] is passed through second bearing [15] and the 3rd bearing [18] combine and assemble, and is connected by housing Luo bolt [36] with main casing [6].
The 3rd bearing [18] can adopt common standard roller bearing, ball bearing or other bearing.
Second seal ring [19] is a standard speed reducer seal ring, is used for preventing dust and anti-leakage of oil.
Output end cap [20] is disk and round column structure, and the centre is processed with the mounting hole of the 3rd bearing [18] and second seal ring [19], and the external diameter of disk is identical with output shaft housing [17], and it is fastening with output shaft housing [17] to export end cap [20] by bolt of cover [37].
Axle sleeve [21] is a cylindrical structure, is used for locating the 3rd bearing [18].
Bearing baffle ring [22] is a standard rolling bearing baffle ring, is used with the 3rd bearing [18].
Positioning ring [23] is a cylindrical structure, is used for locating second bearing [15] and the 3rd bearing [18].
End ring [24] is the circlip of a standard.
The 4th bearing [25] can adopt common standard roller bearing, ball bearing or other bearing.
The second roller end cap [26] is a garden ring structure, adopts sunk screw to fix with post wheel [7], is used for preventing the axial motion of roller [9].
Spacer ring [27] is a shouldered garden ring structure, is used for locating the 4th bearing [25] and second eccentric body [30].
The 5th bearing [28] can adopt common standard roller bearing, ball bearing or other bearing.
First eccentric body [29] is the circle structure of an off-centre, is used for installing the 5th bearing [28], and offset is identical with second eccentric body [30].When eccentric opening and input shaft [1] were installed, its eccentric direction and second eccentric body [30] be the shaft centre line symmetry in the other direction.
Second eccentric body [30] is the circle structure of an off-centre, is used for installing the 6th bearing [31], and offset is identical with first eccentric body [29].When eccentric opening and input shaft [1] were installed, its eccentric direction and first eccentric body [29] be the shaft centre line symmetry in the other direction.
First eccentric body [29] is an integral type in the present embodiment, and second eccentric body [30] is made up of 2 eccentric annulus.
The 6th bearing [31] can adopt common standard roller bearing, ball bearing or other bearing.
Roller spring [32] is used for controlling the position of roller [9], can be common spring, also can be rubber spring or torsion spring.Be fixed in the bi-side that post is taken turns [7] by spring positioning screwn [33], also can be installed in the slotted hole [41].
Spring positioning screwn [33] is the screw of a standard, is used for fixing roller spring [32].
Spacer ring [34] is same structure with spacer ring [27], is used for locating clutch shaft bearing [3] and another second eccentric body [30].
The outer back-up ring [35] of bearing is the back-up ring of a standard, is used for locating the outer ring of clutch shaft bearing [3].
Housing Luo bolt [36] is the common Luo bolt of standard, is used for input end cap [4] and output shaft housing [17] are connected with main casing [6].
End cap Luo bolt [37] is the common Luo bolt of standard, is used for output end cap [20] is connected with main casing [6].
The installation step of present embodiment is as follows:
1, first eccentric body [29] is cooperated assembling with the 5th bearing [28], second eccentric body [30] cooperates assembling (totally two second eccentric bodies [30] and the 6th bearing [31]) (first assembly) with the 6th bearing [31].
2, a U sheave [8] is assembled on the 5th bearing [28] in first assembly, the 6th bearing [31] that the 2nd U sheave [11] is assembled in first assembly is gone up (totally two the 2nd U sheaves [11]) (second assembly).
3, each porous of post wheel [7] is taken turns in the main casing [6] of packing into, coincide by four keys and keyway and assemble.When packing main casing [6] into, a U sheave [8], pad [10] and the 2nd U sheave [11] and porous are taken turns the housing of alternately packing into.It is in proper order: porous wheel → U sheave → pad+porous wheel → U sheave → pad+porous wheel → U sheave → porous wheel.U sheave [8] after the assembling and the 2nd U sheave [11] are in the middle of post wheel [7] (the 3rd assembly).
4, roller [9] is inserted in the interior slotted hole [41] of the 3rd assembly center pillar wheel [7] (the 4th assembly).
5, roller spring [32] is fixed on the bi-side of the 4th assembly center pillar wheel [7] with spring positioning screwn [33], and roller [9] is positioned at the bottom land (the 5th assembly) of slotted hole [41] with butterfly type spring.
6, the first roller end cap [5] and the second roller end cap [26] are installed to the both sides (the 6th assembly) of the post wheel [7] in the 5th assembly.
7, with clutch shaft bearing [3], spacer ring [34] and input shaft [1] assembling, and first eccentric body [29] in input shaft [1] and the 6th assembly and second eccentric body [30] assembled, go out to hold fit on spacer ring [27], the 4th bearing [25] and end ring [24] (the 7th assembly) with input shaft [1] after the assembling.
8, first seal ring [2] is packed into the input end cap [4] the seal ring position, to import the end of going into of the input shaft [1] in end cap [4] and the 7th assembly then and assemble, employing housing Luo bolt [36] will be imported end cap [4] and be fastenedly connected (the 8th assembly) with main casing [6] after assembling puts in place.
9,, after the assembling, axle sleeve [21] is assembled to output shaft [14] goes up to the 3rd bearing [18] location (a assembly) with second bearing [15], positioning ring [23] and the 3rd bearing [18] and output shaft [14] assembling.
10,, after being seated, bearing baffle ring [22] is assembled in the outer groove of the 3rd bearing [18] (b assembly) with the assembling of a assembly and output shaft housing [17].
11, second seal ring [19] is packed into output end cap [20] the seal ring position, to export end cap [20] then and be inserted in the output terminal of output shaft in the b assembly [14], the output shaft housing [17] that adopts end cap Luo bolt [37] will export in end cap [20] and the b assembly after assembling puts in place is fastenedly connected (c assembly).
12, the c assembly is cooperated assembling with the 8th assembly, adopt housing Luo bolt [36] that the main casing [6] in output shaft housing [17] in the c assembly and the 8th assembly is fastenedly connected after assembling puts in place.
13, assembling finishes.
Claims (17)
1. one kind is lacked tooth difference roller engagement transmission mechanism, it comprises input shaft [1], the U sheave of forming gear pair with small teeth difference, post wheel [7] and roller [9], mesh transferring power by roller [9] between U sheave and the post wheel [7], input shaft [1] drives the U sheave, the U sheave has the U type teeth groove outside circumferential, it is characterized in that:
Described U sheave comprises a U sheave [8] and the 2nd U sheave [11] as the external gear of gear pair with small teeth difference; Described post wheel [7] is as the internal gear of gear pair with small teeth difference; Input shaft [1] drives the U sheave by eccentric body, and described eccentric body comprises first eccentric body [29] and second eccentric body [30];
Described post wheel [7] is combined side by side by discoid porous wheel more than two or two, between the porous wheel side by side axial spacing is arranged, all porous wheels are processed with n1 equally distributed slotted hole [41] along circumference, the described wheel of porous is side by side gone up relative slotted hole [41] and is formed upward platoon leader n1 hole of post wheel [7], and a roller [9] is housed in every platoon leader hole;
The U sheave that combination back forms the gear pair with small teeth difference engagement with the structure of post wheel [7] is: in the axial spacing between the porous that each U sheave is arranged in post wheel [7] is taken turns, a U sheave [8] and the 2nd U sheave [11] are assembled in the intermediate section of input shaft [1] respectively in axis bilateral symmetry off-centre by first eccentric body [29] and second eccentric body [30]; Post wheel [7] forms few tooth difference roller engagement of many rows by roller [9] and the teeth groove [38] on the U sheave;
Wherein, on the post wheel [7] platoon leader n1 hole is arranged, n2 toothrow groove is arranged on the U sheave, n2＜n1, its difference n1-n2 promptly are that the number of teeth in the gear pair with small teeth difference is poor, and n1, n2 are integers.
2. driving mechanism according to claim 1, it is characterized in that: described U sheave is that teeth groove is the gear of U type, the one U sheave [8] and the 2nd U sheave [11] can be that one or more U sheaves make up side by side, each U sheave is processed with n2 U type groove [38] along circumference, and relative U type groove [38] forms n2 toothrow groove on the U sheave side by side; A U sheave [8] of axis bilateral symmetry arranged off-centre and the 2nd U sheave [11] adopt same structure or etc. weighing body.
3. driving mechanism according to claim 1 is characterized in that: in the every platoon leader hole [41] on the described post wheel [7] roller [9] is housed; Roller [9] forms the engagement between post wheel [7] and the U sheave as " oscillating tooth " of internal gear.
4. driving mechanism according to claim 1 is characterized in that: roller [9] is positioned in the slotted hole [41] by roller spring [32], can in slotted hole [41] radially little displacement be arranged, to avoid radial interference.
5. driving mechanism according to claim 1 is characterized in that: roller spring [32] is fixed on the porous wheel of post wheel [7] by spring positioning screwn [33].
6. driving mechanism according to claim 1 is characterized in that: roller spring [32] also can adopt cylindrical spring to be installed in the slotted hole [41].
7. driving mechanism according to claim 1 is characterized in that: roller spring [32] can be butterfly spring, rubber spring, wire spring, heterotypic spring or leaf spring etc.
8. driving mechanism according to claim 1 is characterized in that: post wheel [7] is fixed on main casing [6] inwall by post wheel key way [40].
9. driving mechanism according to claim 1 is characterized in that: have axis hole [43] to be used for cooperating assembling with roller bearing [28] in the middle of the described U sheave, also have several output pin-and-holes [39] around this axis hole, be used for installing output guide [12].
10. driving mechanism according to claim 1 is characterized in that: described first eccentric body [29] and second eccentric body [30] for etc. offset, to eliminate the eccentric load that off-centre causes.
11. driving mechanism according to claim 1 is characterized in that: described eccentric body can be made up of a plurality of individual components, also can be integral type.
12. driving mechanism according to claim 1 is characterized in that: described eccentric body is one to have the eccentric annulus of keyway.
13. driving mechanism according to claim 1 is characterized in that: described U sheave can be an integral type U sheave, also can be the combination of a plurality of U sheaves.
14. driving mechanism according to claim 1, it is characterized in that: input shaft [1] is by going into end, intermediate section and go out end three part cylindrical bodys to form, its central lines, described first eccentric body [29] and second eccentric body [30] are installed in the intermediate section of input shaft [1], and the cylindrical body that input shaft [1] goes out end cooperates assembling by the 4th bearing [25] with the stomidium of going into of output shaft [14]; On the cylindrical body that input shaft [1] goes into to hold keyway is arranged, be connected with motor; Input shaft [1] goes into to hold cylindrical body to pass through clutch shaft bearing [3] and first seal ring [2] cooperates assembling with input end cap [4] center hole.
15. driving mechanism according to claim 1 is characterized in that: direct setting-up eccentricity bearing on input shaft [1] intermediate section can reach the effect of setting-up eccentricity body and plain bearing equally.
16. speed reducer that adopts few tooth difference roller engagement transmission mechanism as claimed in claim 1, is made up of few tooth difference roller engagement transmission mechanism and output mechanism, it is characterized in that: it comprises: main casing [6], input end cap 4], post wheel [7], a U sheave [8], the 2nd U sheave [11], roller [9], input shaft [1], first eccentric body 29], second eccentric body [30], output guide [12], output pin [13], output shaft [14], output shaft housing [17], export end cap [20] and bearing and seal ring;
Wherein lacking tooth difference roller engagement transmission mechanism comprises: input shaft [1], the U sheave of forming gear pair with small teeth difference, post wheel [7] and roller [9], mesh transferring power by roller [9] between U sheave and the post wheel [7], input shaft [1] drives the U sheave, the U sheave has the U type teeth groove outside circumferential, wherein:
Described U sheave comprises a U sheave [8] and the 2nd U sheave [11] as the external gear of gear pair with small teeth difference; Described post wheel [7] is as the internal gear of gear pair with small teeth difference; Input shaft [1] drives the U sheave by eccentric body, and described eccentric body comprises first eccentric body [29] and second eccentric body [30];
Described post wheel [7] is combined side by side by discoid porous wheel more than two or two, between the porous wheel side by side axial spacing is arranged, all porous wheels are processed with n1 equally distributed slotted hole [41] along circumference, the described wheel of porous is side by side gone up relative slotted hole [41] and is formed upward platoon leader n1 hole of post wheel [7], and a roller [9] is housed in every platoon leader hole;
The U sheave that combination back forms the gear pair with small teeth difference engagement with the structure of post wheel [7] is: in the axial spacing between the porous that each U sheave is arranged in post wheel [7] is taken turns, a U sheave [8] and the 2nd U sheave [11] are assembled in the intermediate section of input shaft [1] respectively in axis bilateral symmetry off-centre by first eccentric body [29] and second eccentric body [30]; Post wheel [7] forms few tooth difference roller engagement of many rows by roller [9] and the teeth groove [38] on the U sheave;
Wherein, on the post wheel [7] platoon leader n1 hole is arranged, n2 toothrow groove is arranged on the U sheave, n2＜n1, its difference n1-n2 promptly are that the number of teeth in the gear pair with small teeth difference is poor, and n1, n2 are integers;
Described few tooth difference roller engagement output mechanism is exported moment of torsion by output pin-and-hole [39], output guide [12], output pin [13] and the output shaft [14] of U sheave.
17. speed reducer according to claim 16 is characterized in that: main center line of input shaft [1] and output shaft [14] concentric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106014739A CN102287489A (en) | 2010-06-18 | 2010-12-23 | Small tooth difference roller engagement transmission mechanism and speed reducer thereof |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010202545.2 | 2010-06-18 | ||
| CN201010202545 | 2010-06-18 | ||
| CN201010526495 | 2010-11-01 | ||
| CN201010526495.3 | 2010-11-01 | ||
| CN2010106014739A CN102287489A (en) | 2010-06-18 | 2010-12-23 | Small tooth difference roller engagement transmission mechanism and speed reducer thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102287489A true CN102287489A (en) | 2011-12-21 |
Family
ID=45334156
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106014739A Withdrawn CN102287489A (en) | 2010-06-18 | 2010-12-23 | Small tooth difference roller engagement transmission mechanism and speed reducer thereof |
| CN2011100823382A Withdrawn CN102287490A (en) | 2010-06-18 | 2011-04-02 | Small-tooth-difference roller meshing transmission mechanism and reducing gear thereof |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100823382A Withdrawn CN102287490A (en) | 2010-06-18 | 2011-04-02 | Small-tooth-difference roller meshing transmission mechanism and reducing gear thereof |
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| Country | Link |
|---|---|
| CN (2) | CN102287489A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014117598A1 (en) * | 2013-01-29 | 2014-08-07 | Fan Zhengfu | Transmission mechanism with small tooth number difference, and speed reducer thereof |
| CN108194603A (en) * | 2018-03-21 | 2018-06-22 | 韦兆利 | A kind of multigroup multi-range transmission of sheave |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469636A (en) * | 2018-05-10 | 2019-11-19 | 鸿富锦精密电子(郑州)有限公司 | Retarder |
| CN114033844B (en) * | 2021-11-04 | 2022-05-27 | 凯临钒机械(杭州)有限公司 | Gear box management system based on data acquisition |
-
2010
- 2010-12-23 CN CN2010106014739A patent/CN102287489A/en not_active Withdrawn
-
2011
- 2011-04-02 CN CN2011100823382A patent/CN102287490A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014117598A1 (en) * | 2013-01-29 | 2014-08-07 | Fan Zhengfu | Transmission mechanism with small tooth number difference, and speed reducer thereof |
| CN108194603A (en) * | 2018-03-21 | 2018-06-22 | 韦兆利 | A kind of multigroup multi-range transmission of sheave |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102287490A (en) | 2011-12-21 |
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Addressee: Gu Zhongqiu Document name: Notification of Passing Preliminary Examination of the Application for Invention |
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| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20111221 |