CN203082130U - Rear three-gear decelerator of motor vehicle - Google Patents
Rear three-gear decelerator of motor vehicle Download PDFInfo
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- CN203082130U CN203082130U CN 201320072000 CN201320072000U CN203082130U CN 203082130 U CN203082130 U CN 203082130U CN 201320072000 CN201320072000 CN 201320072000 CN 201320072000 U CN201320072000 U CN 201320072000U CN 203082130 U CN203082130 U CN 203082130U
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- declutch shift
- reducer shell
- shift shaft
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Abstract
The utility model relates to a rear three-gear decelerator of a motor vehicle, which comprises a differential assembly and a decelerator shell, wherein the decelerator shell and the differential assembly are fixedly connected; an input bevel gear shaft of the differential assembly stretches into the decelerator shell and is fixed with an output duplicate gear; one end of an input rotating shaft is supported on the output duplicate gear through a bearing; the other end of the input rotating shaft extends out of the decelerator shell; a slow driving gear is fixed on the input rotating shaft; a rapid driving duplicate gear is in clearance fit with the input rotating shaft; a gear shifting device is arranged between the rapid driving duplicate gear and the output duplicate gear; a transmission shaft and the input rotating shaft are arranged in the decelerator shell in parallel; a slow driven duplicate gear is in clearance fit with the transmission shaft; a rapid driven gear and an output driving gear are fixed on the transmission shaft; and a gear shifting device is arranged between the slow driven duplicate gear and the rapid driven gear. According to the utility model, three-gear speed changing of the motor vehicle can be realized; driving requirements of the motor vehicle under complex road conditions are satisfied; and the rear three-gear decelerator of the motor vehicle is convenient and labour-saving to shift gears.
Description
Technical field
The utility model relates to a kind of retarder of Motor Vehicle, particularly a kind of postposition three retaining retarders of Motor Vehicle.
Background technique
The transmission device of existing vehicle rear bridge reinforcing, as notification number is CN201457053U " a kind of main reducing gear that is installed on the axle housing formula back axle ", be provided with low-speed active gear and high speed driving gear, low-speed active gear and high speed driving gear are assemblied on the jack shaft jointly, and by being arranged on synchromesh gear and synchronizing tooth ring combination between the two, utilizing shift fork to stir synchronizing tooth ring moves and low-speed active gear or the engagement of high speed driving gear, finish the power-converting between low speed and the high speed, power is passed to differential mechanism by the low speed driven tooth or the high speed driven tooth of differential assembly; The low speed driven tooth of the jack shaft of this structure retarder and differential mechanism, high speed driven tooth are the parallel axes setting, input shaft to retarder input power is made as the angle tooth, this input shaft is perpendicular to jack shaft, and input power is transmitted in the basin tooth engagement that is provided with on the angle tooth of input shaft and the jack shaft.Though the retarder of this structure has low speed and high-speed two-stage power transmission, can change power transmission at low speed or at a high speed, but owing to can only between the two-stage power transmission, change, when travel in the different area of road conditions, still there is the narrower deficiency of power-converting scope, can not satisfies the multiple speed change request of complex road condition.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, a kind of postposition three retaining retarders of Motor Vehicle are provided, this postposition three retaining retarders can be realized the speed change of three gears of Motor Vehicle, satisfy the travel needs of Motor Vehicle under complex road condition, the driving mechanism of this postposition three retaining retarder declutch shift shafts is connected with shift control mechanism by drag-line respectively, and gearshift is convenient, laborsaving.
The purpose of this utility model is achieved in that
A kind of postposition three retaining retarders of Motor Vehicle, comprise differential assembly, reducer shell, described reducer shell and differential assembly are connected and fixed by bolt, the input bevel gear shaft of described differential assembly stretches in the reducer shell, circumferentially fixing with the output duplicate gear in the reducer shell, be provided with an input rotating shaft in the described reducer shell, the input rotating shaft an end by bearings in output duplicate gear axis hole in, the other end of input rotating shaft stretches out reducer shell outward, and cooperate with reducer shell by bearing, in the described input rotating shaft driving gear and duplicate gear at a slow speed quickly are installed, described driving gear at a slow speed is circumferentially fixing with the input rotating shaft, duplicate gear and input rotating shaft Spielpassung quickly, between duplicate gear and the output duplicate gear first power shift gear is set quickly, first power shift gear circumferentially is fixed in the input rotating shaft, first synchronizing ring can be engaged on first power shift gear by internal tooth with moving axially, one transmission shaft is arranged in the reducer shell with the input shaft parallel, the two ends of described transmission shaft respectively by bearings in housing, one with the driven at a slow speed duplicate gear Spielpassung of the engagement of driving gear at a slow speed on transmission shaft, one circumferentially is fixed on the transmission shaft with the quick driven gear of the engagement of duplicate gear quickly, one circumferentially is fixed on the transmission shaft with the output driving gear of exporting the duplicate gear engagement, between driven at a slow speed duplicate gear and the quick driven gear second power shift gear is set, second power shift gear circumferentially is fixed on the transmission shaft, second synchronizing ring can be engaged on second power shift gear by internal tooth with moving axially, be provided with and import first declutch shift shaft and second declutch shift shaft of shaft parallel in the described reducer shell, wherein axial restraint first shift fork and the first synchronizing ring clamping on first declutch shift shaft, axial restraint second shift fork and the second synchronizing ring clamping on second declutch shift shaft.
Be respectively equipped with the driving mechanism of first declutch shift shaft and second declutch shift shaft on the described reducer shell, described driving mechanism comprises dials arm, dial the arm rotating shaft, torque arm, described group of arm rotating shaft Spielpassung is on reducer shell, dialling an arm pivoted end is positioned at reducer shell and fixedlys connected with group arm, dial the arm pivoted the other end and stretch out that reducing gearbox is external fixedlys connected with torque arm, the free end of described torque arm is connected with shift control mechanism by drag-line, be respectively equipped with first limited impression on described first declutch shift shaft and second declutch shift shaft, second limited impression, the free end Spielpassung of dialling arm of the first declutch shift shaft driving mechanism is in first limited impression, and the free end Spielpassung of dialling arm of the second declutch shift shaft driving mechanism is in second limited impression.
The opposite sides of described first declutch shift shaft and second declutch shift shaft is respectively equipped with the interlocking positioning groove, described reducer shell is provided with the interlocking positioning hole, described interlocking positioning hole is provided with the place kick that is used to lock in the interlocking positioning hole between the interlocking positioning groove of the interlocking positioning groove of first declutch shift shaft and second declutch shift shaft.
Be respectively equipped with the gearshift positioning groove on described first declutch shift shaft and second declutch shift shaft, be respectively equipped with the gearshift positioning hole of corresponding first declutch shift shaft and second declutch shift shaft on the described reducer shell, be respectively equipped with the place kick and the pressure spring that are used for first declutch shift shaft and second declutch shift shaft location in the gearshift positioning hole of first declutch shift shaft and second declutch shift shaft.
Described reducer shell comprises two end cap longitudinally, and the two end cap of reducer shell is bolted to connection.
Described differential assembly comprises differential casing, bevel gear, land, inner rotary member, semi-axle bevel gear, bevel planet gear, planet axis, described bevel gear, land respectively by bearings on two erection supports of differential casing, described inner rotary member is between bevel gear and land, fixedly connected with land with bevel gear by bolt respectively in the two ends of inner rotary member, radially be provided with a planet axis in the inner rotary member, the a pair of bevel planet gear of assembling on this planet axis, semi-axle bevel gear of each Spielpassung of the axis hole of bevel gear and land, two semi-axle bevel gears all mesh with a pair of bevel planet gear, and described semi-axle bevel gear is provided with and is used for and the circumferential fixing inner splined hole of semiaxis.
Described differential casing is provided with the flange that is used to connect back axle.
Be provided with bearing and oil sealing between described differential casing and the input bevel gear shaft.
Owing to adopted such scheme, this postposition three retaining retarders comprise differential assembly, reducer shell, described reducer shell and differential assembly are connected and fixed by bolt, the split design of differential assembly, reducer shell, rearmounted three retaining retarders can be dismantled, therefore help maintenance and change component.It is circumferentially fixing that the input bevel gear shaft of differential assembly stretches in the reducer shell output duplicate gear, the input rotating shaft an end by bearings in output duplicate gear axis hole in, the other end of input rotating shaft stretches out reducer shell outward, and cooperates with reducer shell by bearing.The two ends of output duplicate gear connect input bevel gear shaft, input rotating shaft respectively, input rotating shaft and input bevel gear shaft are positioned on the same axis, guaranteed the coaxality of input rotating shaft with the input bevel gear shaft, make the input rotating shaft that power can be passed to the input bevel gear shaft, without meshed transmission gear, the efficient and the precision of transmission are higher, not wearing and tearing, longer service life.
When first synchronizing ring, when second synchronizing ring all is in neutral gear position, the power of input rotating shaft can not be passed to the input bevel gear shaft, is idling conditions, and rearmounted three retaining retarders are neutral; When first synchronizing ring moves forward and the connection tooth engagement of duplicate gear quickly, when second synchronizing ring is in neutral gear position, duplicate gear rotates synchronously with the input rotating shaft quickly, duplicate gear drives quick driven gear, transmission shaft, output driving gear, output duplicate gear, the rotation of input bevel gear shaft successively quickly, thereby by the left and right half of differential assembly driving rear axle, this moment, rearmounted three retaining retarders were in fast block; When first synchronizing ring moves and the connection tooth engagement of exporting duplicate gear backward, when second synchronizing ring is in neutral gear position, output duplicate gear, input bevel gear shaft rotate synchronously with the input rotating shaft, thereby by the left and right half of differential assembly driving rear axle, this moment, rearmounted three retaining retarders were in the middling speed retaining; When first synchronizing ring is in neutral gear position, when second synchronizing ring moves forward and the connection tooth of driven duplicate gear meshes at a slow speed, driving gear drives driven at a slow speed duplicate gear, transmission shaft, output driving gear, output duplicate gear, the rotation of input bevel gear shaft successively at a slow speed, thereby by the left and right half of differential assembly driving rear axle, this moment, rearmounted three retaining retarders were in slow block.Rearmounted three retaining retarders have been realized three gears to the differential mechanism transmitting power, by three retaining speed changes, can satisfy the multiple speed change request of Motor Vehicle at complex road condition.
Be provided with and import first declutch shift shaft and second declutch shift shaft of shaft parallel in the reducer shell, wherein axial restraint first shift fork and the first synchronizing ring clamping on first declutch shift shaft, axial restraint second shift fork and the second synchronizing ring clamping on second declutch shift shaft.Adopt the shift fork work respectively of two declutch shift shafts, make the gear shift control of three gears clear, can not interfere, help adopting drag-line and shift control mechanism to carry out remote-controlled operation control.
The opposite sides of first declutch shift shaft and second declutch shift shaft is respectively equipped with the interlocking positioning groove, described reducer shell is provided with the interlocking positioning hole, described interlocking positioning hole is provided with the place kick that is used to lock in the interlocking positioning hole between the interlocking positioning groove of the interlocking positioning groove of first declutch shift shaft and second declutch shift shaft.First declutch shift shaft and second declutch shift shaft cannot be moved axially simultaneously, when first declutch shift shaft and second declutch shift shaft are subjected to axial force simultaneously, the sphere of the place kick of interlocking positioning hole both sides contacts spacing with the positioning groove of first declutch shift shaft and second declutch shift shaft, prevent to shift gears simultaneously.Avoid the phenomenon that causes the two-stage transmission to be worked simultaneously because of gear shift operation error, prevent that gear is impaired.
Be respectively equipped with the gearshift positioning groove on first declutch shift shaft and second declutch shift shaft, be respectively equipped with the gearshift positioning hole of first declutch shift shaft and second declutch shift shaft on the described reducer shell, be respectively equipped with the place kick and the pressure spring that are used for first declutch shift shaft and second declutch shift shaft location in the gearshift positioning hole of first declutch shift shaft and second declutch shift shaft.Place kick is stretched out automatically with the gearshift positioning groove and contact under the pressure of pressure spring, to first declutch shift shaft and second declutch shift shaft location, makes Motor Vehicle keep this gear to move always.When first declutch shift shaft with second declutch shift shaft is stressed when moving axially, place kick pressurized retraction.
Be respectively equipped with the driving mechanism of first declutch shift shaft and second declutch shift shaft on the described reducer shell, described driving mechanism comprises dials arm, dial the arm rotating shaft, torque arm, described group of arm rotating shaft Spielpassung is on reducer shell, dialling an arm pivoted end is positioned at reducer shell and fixedlys connected with group arm, dial the arm pivoted the other end and stretch out that reducing gearbox is external fixedlys connected with torque arm, the free end of described torque arm is connected with shift control mechanism by drag-line, be respectively equipped with first limited impression on described first declutch shift shaft and second declutch shift shaft, second limited impression, the free end Spielpassung of dialling arm of the first declutch shift shaft driving mechanism is in first limited impression, and the free end Spielpassung of dialling arm of the second declutch shift shaft driving mechanism is in second limited impression.By shift control mechanism control drag-line, can drive torque arm and rotate, dial the arm rotation thereby drive, dial when arm rotates and stir declutch shift shaft, declutch shift shaft is moved axially, finish gearshift.
Described reducer shell comprises two end cap longitudinally, and the two end cap of reducer shell is bolted to connection.This detachable structure of reducer shell, the operating space was bigger when rearmounted three retaining retarders were assembled, and efficiency of assembling is higher.
This postposition three retaining retarders have been realized three gears to the differential mechanism transmitting power by said structure, by three retaining speed changes, can satisfy the multiple speed change request of Motor Vehicle at complex road condition.The driving mechanism of this postposition three retaining retarder declutch shift shafts is connected with shift control mechanism by drag-line respectively, realizes gearshift at a distance by shift control mechanism, and is convenient, laborsaving.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the plan view of Fig. 1;
Fig. 4 is the B-B sectional view of Fig. 3;
Fig. 5 is the C-C sectional view of Fig. 3;
Fig. 6 is the D-D sectional view of Fig. 3;
Fig. 7 is the E-E sectional view of Fig. 3;
Fig. 8 is a manipulation connection diagram of the present utility model;
Fig. 9 is the side view of Fig. 8.
In the accompanying drawing, 1 is differential assembly, and 1a is the input bevel gear shaft, 1b is a differential casing, and 1c is a bevel gear, and 1d is a land, 1e is an inner rotary member, and 1f is a semi-axle bevel gear, and 1g is a bevel planet gear, 1h is a planet axis, and 2 is reducer shell, and 2a is an end cap, 3 are the output duplicate gear, 4 are the input rotating shaft, and 5 are driving gear at a slow speed, and 6 are duplicate gear quickly, 7 is first power shift gear, 8 is first synchronizing ring, and 9 is transmission shaft, and 10 are driven duplicate gear at a slow speed, 11 is quick driven gear, 12 is second power shift gear, and 13 is second synchronizing ring, and 14 is first declutch shift shaft, 14a is first limited impression, 15 is second declutch shift shaft, and 15a is second limited impression, and 16 is first shift fork, 17 is second shift fork, 18 is driving mechanism, and 18a is for dialling arm, and 18b is for dialling the arm rotating shaft, 18c is torque arm, 19 is drag-line, and 20 is shift control mechanism, and 21 are the interlocking positioning groove, 22 are the interlocking positioning hole, 23 are place kick, and 24 are the gearshift positioning groove, and 25 are the gearshift positioning hole, 26 is pressure spring, 27 for being used to connect the flange of back axle, and 28 is oil sealing, 29 output driving gears.
Embodiment
Referring to Fig. 1～Fig. 9, keep off a kind of embodiment of retarders for the postposition three of Motor Vehicle, this postposition three retaining retarders comprise differential assembly 1, reducer shell 2, be respectively equipped with the adpting flange that is used to interfix on differential assembly and the reducer shell, described reducer shell 2 and differential assembly 1 are connected and fixed by bolt.Described reducer shell 2 comprises two end cap 2a longitudinally, and the two end cap 2a of reducer shell 2 is bolted to connection.This detachable structure of reducer shell, the operating space was bigger when rearmounted three retaining retarders were assembled, and efficiency of assembling is higher.The input bevel gear shaft 1a of described differential assembly 1 stretches in the reducer shell 2, and is circumferentially fixing with the output duplicate gear 3 in the reducer shell 2.The gear end of described input bevel gear shaft 1a and the bevel gear 1c of differential assembly 1 engagement, the rotating shaft end of input bevel gear shaft 1a is provided with external splines, the axis hole of output duplicate gear 3 is provided with internal spline, and the rotating shaft end of input bevel gear shaft 1a is connected with output duplicate gear 3 splines.Described reducer shell and differential casing are provided with the through hole that passes for the input bevel gear shaft, be provided with bearing and oil sealing 28 between described differential casing 1b and the input bevel gear shaft 1a, bearing number between differential casing and the input bevel gear shaft can be for one or more, in the present embodiment, be provided with a tapered roller bearing and two deep groove ball bearings simultaneously between differential casing and the input bevel gear shaft, to support the input bevel gear shaft, simultaneously bearing radial force and axial force, described oil sealing is positioned at the bearing outside, prevents oil leak.
Be provided with an input rotating shaft 4 in the described reducer shell 2, the input rotating shaft 4 an end by bearings in output duplicate gear 3 axis hole in, the axis hole of output duplicate gear 3 is a shoulder hole, the bearing that supports the input rotating shaft is positioned at the miner diameter end of shoulder hole, the bigger diameter end of shoulder hole is provided for and imports the internal spline that bevel gear shaft is connected, and the step of shoulder hole bigger diameter end is used for bearing spacing.The other end of input rotating shaft 4 stretches out reducer shell 2 outward, and cooperates with reducer shell 2 by bearing, and the overhanging end of input rotating shaft is used for being connected with the power plant of Motor Vehicle.In the present embodiment, input rotating shaft 4 is supported in the axis hole of exporting duplicate gear by a deep groove ball bearing, is supported in reducer shell by two deep groove ball bearings.Driving gear 5 and duplicate gear 6 at a slow speed quickly are installed in the described input rotating shaft 4, described driving gear at a slow speed 5 is circumferentially fixing with input rotating shaft 4, duplicate gear 6 and input rotating shaft 4 Spielpassung quickly, driving gear is provided with internal spline at a slow speed, the input rotating shaft is provided with external splines, and driving gear is connected with input rotating shaft spline at a slow speed.Between duplicate gear 6 and the output duplicate gear 3 first power shift gear 7 is set quickly, first power shift gear 7 circumferentially is fixed in the input rotating shaft 4, first power shift gear is provided with internal spline, and the input rotating shaft is provided with external splines, first power shift gear and input rotating shaft spline fitted.First synchronizing ring 8 can be engaged on first power shift gear 7 by internal tooth with moving axially, first synchronizing ring move axially can with the connection tooth engagement of duplicate gear 6 quickly or output duplicate gear 3.One transmission shaft 9 is set in parallel in the reducer shell 2 with input rotating shaft 4, the two ends of described transmission shaft 9 respectively by bearings in housing, one with driven at a slow speed duplicate gear 10 Spielpassung of 5 engagements of driving gear at a slow speed on transmission shaft 9, one circumferentially is fixed on the transmission shaft 9 with the quick driven gear 11 of 6 engagements of duplicate gear quickly, one circumferentially is fixed on the transmission shaft 9 with the output driving gear 29 of output duplicate gear 3 engagement, quick driven gear 11, be respectively equipped with internal spline on the output driving gear, transmission shaft 9 is provided with outer spline section, fast driven gear 11, output driving gear and transmission shaft 9 are circumferentially fixing by spline.Between driven at a slow speed duplicate gear 10 and the quick driven gear 11 second power shift gear 12 is set, second power shift gear 12 circumferentially is fixed on the transmission shaft 9, second power shift gear 12 is provided with internal spline, and transmission shaft 9 is provided with external splines, first power shift gear 7 and transmission shaft 9 spline fitted.Second synchronizing ring 13 can be engaged on second power shift gear 12 by internal tooth with moving axially.Second synchronizing ring 13 move axially make can with the connection tooth engagement of driven duplicate gear 10 at a slow speed.
Be provided with first declutch shift shaft 14 and second declutch shift shaft 15 parallel in the described reducer shell 2, be respectively equipped with on the reducer shell 2 for first declutch shift shaft 14 and second declutch shift shaft, 15 axially movable pilot holes with importing rotating shaft 4.Wherein axial restraint first shift fork 16 and 8 clampings of first synchronizing ring on first declutch shift shaft 14, axial restraint second shift fork 17 and 13 clampings of second synchronizing ring on second declutch shift shaft 15.First synchronizing ring 8, second synchronizing ring 13 are provided with circumferential groove and first shift fork 16, second shift fork, 17 Spielpassung.The opposite sides of described first declutch shift shaft 14 and second declutch shift shaft 15 is respectively equipped with interlocking positioning groove 21, described reducer shell 2 is provided with interlocking positioning hole 22, described interlocking positioning hole 22 is provided with the place kick 23 that is used to lock in the interlocking positioning hole 22 between the interlocking positioning groove 21 of the interlocking positioning groove 21 of first declutch shift shaft 14 and second declutch shift shaft 15.In the present embodiment, be provided with two place kick that are used to lock in the interlocking positioning hole and can reach using effect, place kick cannot move axially first declutch shift shaft and second declutch shift shaft simultaneously, when first declutch shift shaft and second declutch shift shaft are subjected to axial force simultaneously, the sphere of the place kick of interlocking positioning hole both sides contacts spacing with the positioning groove of first declutch shift shaft and second declutch shift shaft, prevent to shift gears simultaneously.Avoid the phenomenon that causes the two-stage transmission to be worked simultaneously because of gear shift operation error, prevent that gear is impaired.
Be respectively equipped with gearshift positioning groove 24 on described first declutch shift shaft 14 and second declutch shift shaft 15, in the present embodiment, first declutch shift shaft is provided with three gearshift positioning grooves, first declutch shift shaft can be stopped at three gears, middle gear is the neutral position, second declutch shift shaft 15 is provided with two gearshift positioning grooves 24, and second declutch shift shaft 15 can be stopped at two gears.Be respectively equipped with on the described reducer shell 2 in the gearshift positioning hole 25 of gearshift positioning hole 25, the first declutch shift shafts 14 of first declutch shift shaft 14 and second declutch shift shaft 15 and second declutch shift shaft 15 and be respectively equipped with place kick 23 and the pressure spring 26 that is used for first declutch shift shaft 14 and second declutch shift shaft, 15 location.Place kick 23 contact with gearshift positioning groove 24 under the pressure of pressure spring 26, to first declutch shift shaft 14 and second declutch shift shaft 15 location, when first declutch shift shaft 14 and second declutch shift shaft 15 stressed when mobile place kick 23 bounce back.
Be respectively equipped with the driving mechanism 18 of first declutch shift shaft 14 and second declutch shift shaft 15 on the described reducer shell 2, described driving mechanism 18 comprises dials arm 18a, group arm rotating shaft 18b, torque arm 18c, described group of arm rotating shaft 18b Spielpassung is on reducer shell 2, and be and free to rotate.An end of dialling arm rotating shaft 18b is positioned at reducer shell 2 fixedlys connected with group arm 18a, in the present embodiment, dials arm rotating shaft 18b and dials the moulding of arm 18a integrally casting.The other end of dialling arm rotating shaft 18b stretches out outside the reducer shell 2 fixedlys connected with torque arm 18c, in the present embodiment, this end of dialling arm rotating shaft 18b is provided with the rectangle head, and torque arm 18c is provided with corresponding rectangular opening, and the rectangular opening of torque arm 18c is enclosed within on the rectangle head of dialling arm rotating shaft 18b spacing by nut again.Dial arm 18a, dial arm rotating shaft 18b, torque arm 18c and connect c-shaped or Z-shaped.Be respectively equipped with the first limited impression 14a, the second limited impression 15a on described first declutch shift shaft 14 and second declutch shift shaft 15, the first limited impression 14a, the second limited impression 15a are radial groove, the free end Spielpassung of dialling arm 18a of first declutch shift shaft, 14 driving mechanisms 18 is in the first limited impression 14a, the free end Spielpassung of dialling arm 18a of first declutch shift shaft, 14 driving mechanisms 18 moves when group arm 18a can drive declutch shift shaft when dialling arm rotating shaft 18b rotation in the second limited impression 15a.The free end of described torque arm 18c is connected with shift control mechanism 20 by drag-line 19, rotates thereby pass through drag-line 19 control torque arm 18c, drives and dials arm 18a rotation.
Described differential assembly 1 comprises differential casing 1b, bevel gear 1c, land 1d, inner rotary member 1e, semi-axle bevel gear 1f, bevel planet gear 1g, planet axis 1h.Described differential casing 1b is provided with the flange 27 that is used to connect back axle, and this postposition three retaining retarders are fixedlyed connected with back axle by the flange on the differential casing 1b.Be respectively equipped with the pivoted housing that is used to support on described bevel gear 1c and the land 1d, described bevel gear 1c, land 1d respectively by bearings on two erection supports of differential casing 1b.Inner rotary member 1e is between bevel gear 1c and land 1d, fixedly connected with land 1d with bevel gear 1c by bolt respectively in the two ends of inner rotary member 1e, radially be provided with a planet axis 1h among the inner rotary member 1e, the two ends of planet axis 1h are by being bolted on the inner rotary member 1e, and this planet axis 1h goes up a pair of bevel planet gear of assembling.Semi-axle bevel gear 1f of each Spielpassung of the axis hole of bevel gear 1c and land 1d, two semi-axle bevel gear 1f all mesh with a pair of bevel planet gear, and described semi-axle bevel gear 1f is provided with and is used for and the circumferential fixing inner splined hole of semiaxis.Thereby the two-semiaxle that can pass through the rotating drive back axle of semi-axle bevel gear 1f rotates.
This postposition three retaining retarders are installed on the back axle of Motor Vehicle, flange and back axle that differential casing is provided with are bolted to connection, the differential mechanism of this postposition three retaining retarders is arranged in the tooth bag of back axle, circumferentially fixedly connected with the semiaxis of back axle by semi-axle bevel gear, this postposition three retaining retarders input rotating shaft and engine output shaft between transmission shaft by the transmission engine power be connected.
The user mode of rearmounted three retaining retarders is as follows:
When first synchronizing ring, when second synchronizing ring all is in neutral gear position, first synchronizing ring not with the connection tooth engagement of duplicate gear quickly or output duplicate gear, second synchronizing ring not with the connection tooth engagement of driven duplicate gear at a slow speed, the power of input rotating shaft can not be passed to the input bevel gear shaft, be idling conditions, rearmounted three retaining retarders are neutral.
2. working as first synchronizing ring moves forward and the connection tooth engagement of duplicate gear quickly, when second synchronizing ring is in neutral gear position, duplicate gear rotates synchronously with the input rotating shaft quickly, duplicate gear drives quick driven gear, transmission shaft, output driving gear, output duplicate gear, the rotation of input bevel gear shaft successively quickly, thereby by the left and right half of differential assembly driving rear axle, this moment, rearmounted three retaining retarders were in fast block.
3. when moving backward with the connection tooth of exporting duplicate gear, first synchronizing ring meshes, when second synchronizing ring is in neutral gear position, output duplicate gear, input bevel gear shaft rotate synchronously with the input rotating shaft, thereby by the left and right half of differential assembly driving rear axle, this moment, rearmounted three retaining retarders were in the middling speed retaining.
4. work as first synchronizing ring and be in neutral gear position, when second synchronizing ring moves forward and the connection tooth of driven duplicate gear meshes at a slow speed, driving gear drives driven at a slow speed duplicate gear, transmission shaft, output driving gear, output duplicate gear, the rotation of input bevel gear shaft successively at a slow speed, thereby by the left and right half of differential assembly driving rear axle, this moment, rearmounted three retaining retarders were in slow block.
The utility model not only is confined to the foregoing description, carries out the technological scheme of a little change under the situation that does not deviate from the technical solutions of the utility model spirit, should fall into protection domain of the present utility model.
Claims (8)
1. the postposition three of a Motor Vehicle is kept off retarders, comprise differential assembly, reducer shell, described reducer shell and differential assembly are connected and fixed by bolt, it is characterized in that: the input bevel gear shaft of described differential assembly stretches in the reducer shell, circumferentially fixing with the output duplicate gear in the reducer shell, be provided with an input rotating shaft in the described reducer shell, the input rotating shaft an end by bearings in output duplicate gear axis hole in, the other end of input rotating shaft stretches out reducer shell outward, and cooperate with reducer shell by bearing, in the described input rotating shaft driving gear and duplicate gear at a slow speed quickly are installed, described driving gear at a slow speed is circumferentially fixing with the input rotating shaft, duplicate gear and input rotating shaft Spielpassung quickly, between duplicate gear and the output duplicate gear first power shift gear is set quickly, first power shift gear circumferentially is fixed in the input rotating shaft, first synchronizing ring can be engaged on first power shift gear by internal tooth with moving axially, one transmission shaft is arranged in the reducer shell with the input shaft parallel, the two ends of described transmission shaft respectively by bearings in housing, one with the driven at a slow speed duplicate gear Spielpassung of the engagement of driving gear at a slow speed on transmission shaft, one circumferentially is fixed on the transmission shaft with the quick driven gear of the engagement of duplicate gear quickly, one circumferentially is fixed on the transmission shaft with the output driving gear of exporting the duplicate gear engagement, between driven at a slow speed duplicate gear and the quick driven gear second power shift gear is set, second power shift gear circumferentially is fixed on the transmission shaft, second synchronizing ring can be engaged on second power shift gear by internal tooth with moving axially, be provided with and import first declutch shift shaft and second declutch shift shaft of shaft parallel in the described reducer shell, wherein axial restraint first shift fork and the first synchronizing ring clamping on first declutch shift shaft, axial restraint second shift fork and the second synchronizing ring clamping on second declutch shift shaft.
2. the postposition three of Motor Vehicle according to claim 1 is kept off retarders, it is characterized in that: the driving mechanism that is respectively equipped with first declutch shift shaft and second declutch shift shaft on the described reducer shell, described driving mechanism comprises dials arm, dial the arm rotating shaft, torque arm, described group of arm rotating shaft Spielpassung is on reducer shell, dialling an arm pivoted end is positioned at reducer shell and fixedlys connected with group arm, dial the arm pivoted the other end and stretch out that reducing gearbox is external fixedlys connected with torque arm, the free end of described torque arm is connected with shift control mechanism by drag-line, be respectively equipped with first limited impression on described first declutch shift shaft and second declutch shift shaft, second limited impression, the free end Spielpassung of dialling arm of the first declutch shift shaft driving mechanism is in first limited impression, and the free end Spielpassung of dialling arm of the second declutch shift shaft driving mechanism is in second limited impression.
3. the postposition three of Motor Vehicle according to claim 1 and 2 is kept off retarders, it is characterized in that: the opposite sides of described first declutch shift shaft and second declutch shift shaft is respectively equipped with the interlocking positioning groove, described reducer shell is provided with the interlocking positioning hole, described interlocking positioning hole is provided with the place kick that is used to lock in the interlocking positioning hole between the interlocking positioning groove of the interlocking positioning groove of first declutch shift shaft and second declutch shift shaft.
4. the postposition three of Motor Vehicle according to claim 1 and 2 is kept off retarders, it is characterized in that: be respectively equipped with the gearshift positioning groove on described first declutch shift shaft and second declutch shift shaft, be respectively equipped with the gearshift positioning hole of corresponding first declutch shift shaft and second declutch shift shaft on the described reducer shell, be respectively equipped with the place kick and the pressure spring that are used for first declutch shift shaft and second declutch shift shaft location in the gearshift positioning hole of first declutch shift shaft and second declutch shift shaft.
5. the postposition three of Motor Vehicle according to claim 1 is kept off retarders, and it is characterized in that: described reducer shell comprises two end cap longitudinally, and the two end cap of reducer shell is bolted to connection.
6. the postposition three of Motor Vehicle according to claim 1 is kept off retarders, it is characterized in that: described differential assembly comprises differential casing, bevel gear, land, inner rotary member, semi-axle bevel gear, bevel planet gear, planet axis, described bevel gear, land respectively by bearings on two erection supports of differential casing, described inner rotary member is between bevel gear and land, fixedly connected with land with bevel gear by bolt respectively in the two ends of inner rotary member, radially be provided with a planet axis in the inner rotary member, the a pair of bevel planet gear of assembling on this planet axis, semi-axle bevel gear of each Spielpassung of the axis hole of bevel gear and land, two semi-axle bevel gears all mesh with a pair of bevel planet gear, and described semi-axle bevel gear is provided with and is used for and the circumferential fixing inner splined hole of semiaxis.
7. the postposition three of Motor Vehicle according to claim 6 is kept off retarders, and it is characterized in that: described differential casing is provided with the flange that is used to connect back axle.
8. the postposition three retaining retarders of Motor Vehicle according to claim 6 is characterized in that: be provided with bearing and oil sealing between described differential casing and the input bevel gear shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320072000 CN203082130U (en) | 2013-02-08 | 2013-02-08 | Rear three-gear decelerator of motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320072000 CN203082130U (en) | 2013-02-08 | 2013-02-08 | Rear three-gear decelerator of motor vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN203082130U true CN203082130U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320072000 Expired - Fee Related CN203082130U (en) | 2013-02-08 | 2013-02-08 | Rear three-gear decelerator of motor vehicle |
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| CN (1) | CN203082130U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114547A (en) * | 2015-08-03 | 2015-12-02 | 江苏淮海新能源车辆有限公司 | Three-gear reducer transmission structure of electro-tricycle and electro-tricycle |
| CN105351455A (en) * | 2015-12-09 | 2016-02-24 | 重庆先友科技开发有限公司 | Postposition three-level gearbox assembly |
| CN105387148A (en) * | 2015-12-09 | 2016-03-09 | 重庆先友科技开发有限公司 | Integral-type two-stage speed changing main reducer assembly |
| CN105402331A (en) * | 2015-12-09 | 2016-03-16 | 重庆先友科技开发有限公司 | Rear-mounted three-level gearbox assembly with double shifting forks |
| CN105422753A (en) * | 2015-12-08 | 2016-03-23 | 黑龙江红兴隆机械制造有限公司 | Coaxial transmission for refitted half track of tractor |
| CN105422754A (en) * | 2015-12-09 | 2016-03-23 | 重庆先友科技开发有限公司 | Integrated type two-stage speed change main reduction assembly with single shifting fork |
| CN105485333A (en) * | 2015-12-09 | 2016-04-13 | 重庆先友科技开发有限公司 | Double-shifting-fork mechanism for rear-arranged three-stage transmission |
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2013
- 2013-02-08 CN CN 201320072000 patent/CN203082130U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114547A (en) * | 2015-08-03 | 2015-12-02 | 江苏淮海新能源车辆有限公司 | Three-gear reducer transmission structure of electro-tricycle and electro-tricycle |
| CN105422753A (en) * | 2015-12-08 | 2016-03-23 | 黑龙江红兴隆机械制造有限公司 | Coaxial transmission for refitted half track of tractor |
| CN105351455A (en) * | 2015-12-09 | 2016-02-24 | 重庆先友科技开发有限公司 | Postposition three-level gearbox assembly |
| CN105387148A (en) * | 2015-12-09 | 2016-03-09 | 重庆先友科技开发有限公司 | Integral-type two-stage speed changing main reducer assembly |
| CN105402331A (en) * | 2015-12-09 | 2016-03-16 | 重庆先友科技开发有限公司 | Rear-mounted three-level gearbox assembly with double shifting forks |
| CN105422754A (en) * | 2015-12-09 | 2016-03-23 | 重庆先友科技开发有限公司 | Integrated type two-stage speed change main reduction assembly with single shifting fork |
| CN105485333A (en) * | 2015-12-09 | 2016-04-13 | 重庆先友科技开发有限公司 | Double-shifting-fork mechanism for rear-arranged three-stage transmission |
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| C14 | Grant of patent or utility model | ||
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