CN206958116U - A kind of New-type transmission shaft medial support structures and driving-shaft assembly - Google Patents

A kind of New-type transmission shaft medial support structures and driving-shaft assembly Download PDF

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Publication number
CN206958116U
CN206958116U CN201720738084.8U CN201720738084U CN206958116U CN 206958116 U CN206958116 U CN 206958116U CN 201720738084 U CN201720738084 U CN 201720738084U CN 206958116 U CN206958116 U CN 206958116U
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CN
China
Prior art keywords
bearing
flange
hub splines
flange assembly
shaft
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Withdrawn - After Issue
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CN201720738084.8U
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Chinese (zh)
Inventor
潘建锋
谭二雷
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HENAN JUNTONG VEHICLE CO Ltd
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HENAN JUNTONG VEHICLE CO Ltd
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Publication of CN206958116U publication Critical patent/CN206958116U/en
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Abstract

The utility model discloses a kind of New-type transmission shaft medial support structures and driving-shaft assembly, including bearing block, bearing (ball) cover, bearing, flange assembly, splined shaft and oil sealing, flange assembly includes left flange assembly positioned opposite and right flange assembly, left flange assembly includes integrally formed left flange and left hub splines, and right flange assembly includes integrally formed right flange and right hub splines;The bearing includes left bearing and right bearing positioned opposite;Left hub splines runs through bearing (ball) cover and left bearing, and left bearing is sheathed on the right-hand member of left hub splines;Right bearing is sheathed on the left end of right hub splines;Splined shaft runs through left flange assembly and right flange assembly, and is connected by meshing transmission with left hub splines and right hub splines.New-type transmission shaft medial support structures of the present utility model and driving-shaft assembly, high torque can be transmitted, bear larger radial load and axial load, and two sections of power transmission shafts can be arranged with flexibility.

Description

A kind of New-type transmission shaft medial support structures and driving-shaft assembly
Technical field
The utility model is related to heavy-duty car parts, more specifically a kind of New-type transmission shaft medial support structures and Driving-shaft assembly.
Background technology
In recent years, with the fast development of China's manufacturing industry, and economic sustainable growth, the demand of heavy mechanical equipment It is more and more.Because mining large-tonnage heavy truck has the advantages that loading capacity is big, it is convenient to load, operating personnel are few and fuel-economy, Therefore mining area is enjoyed to pay attention to.But more strictly it is necessary to have good for requirement of the power drive system of large-tonnage heavy truck to power transmission shaft Good dynamic balance property, high pulling torque characteristic and the characteristic that runs at high speed.When power transmission shaft is long, intrinsic frequency is relatively low, easily produces altogether Shake, therefore power transmission shaft is typically made two sections, two sections of power transmission shafts are attached by intermediate supports, are driven.It is of the prior art Intermediate supports can not transmit high torque, it is impossible to bear larger radial load, and two sections of power transmission shafts must be coaxial, it is impossible to flexibility Arrangement.
Utility model content
The purpose of this utility model is to provide a kind of New-type transmission shaft medial support structures and driving-shaft assembly, can transmitted High torque, larger radial load and axial load are born, two sections of power transmission shafts can be arranged with flexibility.
To achieve the above object, the utility model adopts the following technical scheme that:
The utility model provides a kind of New-type transmission shaft medial support structures, including bearing block, bearing (ball) cover, bearing, method Blue component, splined shaft and oil sealing.Bearing (ball) cover is fixed on the left end of bearing block, and bearing is located in bearing block inner chamber and bearing (ball) cover In the cavity of chamber composition.The flange assembly includes left flange assembly positioned opposite and right flange assembly, left flange assembly bag Include integrally formed left flange and left hub splines, left hub splines be located at the right side of left flange and with left flange coaxial line, it is right Flange assembly includes integrally formed right flange and right hub splines, right hub splines be located at the left side of right flange and with right flange Coaxial line;The bearing includes left bearing and right bearing positioned opposite, and the oil sealing includes left oil sealing and right oil sealing;Left flange Positioned at the left side of bearing (ball) cover, left hub splines runs through bearing (ball) cover and left bearing, leads between left hub splines and bearing (ball) cover Left oil sealing sealing connection is crossed, left bearing is sheathed on the right-hand member of left hub splines;The left end of right hub splines is located in bearing block, right Bearing holder (housing, cover) is located at the left end of right hub splines, and right flange is located at the right side of bearing block, and right hub splines passes through right oil sealing and bearing Seat is tightly connected;Splined shaft runs through left hub splines and right hub splines, and is engaged with left hub splines and right hub splines Drive connection, is connected between splined shaft left end and bearing (ball) cover and between splined shaft right-hand member and bearing block by locking device Connect.
The locking device includes left locking nut and right locking nut, and the left locking nut is located at left flange assembly Left side and it is threadedly coupled with the left end of splined shaft, left locking nut abuts with the left flange of left flange assembly;The right locking screw Mother is threadedly coupled positioned at the right side of right flange assembly and with the right-hand member of splined shaft, the right flange of right locking nut and right flange assembly Abutting, left locking nut and right locking nut limit the axial movement of splined shaft jointly.
The first groove and the second groove, left locking nut are respectively equipped with the end face of the left flange and the end face of right flange It is in close contact with the first groove, right locking nut and the second groove are in close contact.Splined shaft and left flange assembly can ensured And under the premise of right flange assembly stable transmission, spline shaft length is reduced, reduces cost.
The left locking nut and right locking nut are hexagonal slotted nut.
Circumferentially arranged with exhaust passage of the connection external world with cavity where bearing and oiling passage, row in the bearing (ball) cover One end of the remote bearing of gas passage is exhaust outlet, and exhaust ports are provided with the air bleeding valve that can close exhaust outlet, oiling passage it is remote The one end held off axis is pouring orifice, and the through type grease nipple of energy sealed oil-filling mouth is provided with pouring orifice.Through type grease nipple and note Oily passage is easy to left bearing and right bearing addition lubricating grease.
Close to the first seal section is provided with left hub splines right-hand member on the left hub splines, the external diameter of the first seal section is big In the external diameter of left hub splines right-hand member;Close to being provided with the second seal section at right hub splines left end on the right hub splines, The external diameter of two seal sections is more than the external diameter of right hub splines left end;On the first seal section, right oil-sealing sleeve is mounted in left oil-sealing sleeve On second seal section.The sealing of cavity where improving left bearing and right bearing, reduces the possibility of lubricating grease outflow, subtracts The number of lubricating grease is added less, ensures that left bearing and right bearing can preferably be lubricated in a long time.
New-type transmission shaft medial support structures provided by the utility model, are nibbled using the left end of left flange assembly and splined shaft The form that the right-hand member of drive connection, right flange assembly and splined shaft is connected by meshing transmission is closed, rationally make use of engaged transmission to have Stationarity compared with it is high, transmit the advantages of power bracket is big, transmission efficiency and bearing capacity are high, it is therefore provided by the utility model new Type power transmission shaft medial support structures can transmit high torque, bear larger radial load and axial load.
The utility model also provides a kind of driving-shaft assembly, including the first power transmission shaft and second driving shaft, and described first passes New-type transmission shaft medial support structures as described above, the right-hand member of the first power transmission shaft are provided between moving axis and the second driving shaft It is connected by the left flange assembly of the first universal joint, the first flange yoke and medial support structures, the first flange yoke is fixed on On the left flange assembly, the right side that the left end of second driving shaft passes through the second universal joint, the second flange yoke and medial support structures Flange assembly is connected, and the second flange yoke is fixed on the right flange assembly.
First flange yoke is bolted on the left flange of left flange assembly, and second flange yoke passes through spiral shell Bolt is fixed on the right flange of right flange assembly.It is easy to the assembly or disassembly of the first power transmission shaft and second driving shaft.
Driving-shaft assembly provided by the utility model, the left flange assembly using the first power transmission shaft and medial support structures lead to Cross the first universal joint and the first flange yoke be connected, the right flange assembly of second driving shaft and medial support structures it is universal by second Section and the connected mode of the second flange yoke, can make placement of flexible between the first power transmission shaft and second driving shaft, solve the The problem of one power transmission shaft and second driving shaft must be coaxial.
Brief description of the drawings
Fig. 1 is the stereogram of New-type transmission shaft medial support structures in the utility model;
Fig. 2 is Fig. 1 top view;
Fig. 3 be along Fig. 2 A-A to sectional view;
Fig. 4 is the left view of New-type transmission shaft medial support structures in the utility model;
Fig. 5 is the right view of New-type transmission shaft medial support structures in the utility model;
Fig. 6 is the structural representation of driving-shaft assembly in the utility model.
Embodiment
Structure, ratio, size depicted in this specification institute accompanying drawings etc., only coordinating in disclosed in specification Hold, so that those skilled in the art understands and reads, be not limited to the enforceable qualifications of the utility model, therefore not Has technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are new not influenceing this practicality Under the effect of type can be generated and the purpose that can reach, it all should still fall and obtain and can contain in the technology contents disclosed in the utility model In the range of lid.Meanwhile cited such as " on ", " under " in this specification, "left", "right", the term of " centre " and " one ", Understanding for narration is merely convenient to, and is not used to limit the enforceable scope of the utility model, the change of its relativeness or tune It is whole, in the case where changing technology contents without essence, when being also considered as the enforceable category of the utility model.
As shown in Figure 1 to Figure 3, a kind of New-type transmission shaft medial support structures, including bearing block 2, bearing (ball) cover 3, bearing, Flange assembly, splined shaft 1 and oil sealing.Bearing (ball) cover 3 is fixed on the left end of bearing block 2, and the bearing includes a left side positioned opposite Bearing 6 and right bearing 7, left bearing 6 and right bearing 7 are respectively positioned on the cavity that the inner chamber of bearing block 2 forms with the inner chamber of bearing (ball) cover 3 Interior, the oil sealing includes left oil sealing 8 and right oil sealing 9.The flange assembly includes left flange assembly 4 positioned opposite and right flange Component 5, left flange assembly 4 include integrally formed left flange 12 and left hub splines 18, and left hub splines 18 is located at left flange 12 right side and with the left coaxial line of flange 12;Right flange assembly 5 includes integrally formed right flange 13 and right hub splines 19, right Hub splines 19 be located at the left side of right flange 13 and with the right coaxial line of flange 13.Left flange 12 is located at the left side of bearing (ball) cover 3, left Hub splines 18 runs through bearing (ball) cover 3 and left bearing 6, is sealed and connected by left oil sealing 8 between left hub splines 18 and bearing (ball) cover 3 Connect, left bearing 6 is sheathed on the right-hand member of left hub splines 18.The left end of right hub splines 19 is located in bearing block 2,7 sets of right bearing Located at the left end of right hub splines 19, right flange 13 is located at the right side of bearing block 2, and right hub splines 19 passes through right oil sealing 9 and axle Bearing 2 is tightly connected.Splined shaft 1 runs through left hub splines 18 and right hub splines 19, and with left hub splines 18 and right spline Axle sleeve 19 is connected by meshing transmission, and the stationarity height of engaged transmission, transmits big power bracket, transmission efficiency and bearing capacity Height, therefore can transmit high torque between left flange assembly 4 and splined shaft 1 and between splined shaft 1 and right flange assembly 5, hold By larger radial load and axial load.Between the left end of splined shaft 1 and bearing (ball) cover 3 and between the right-hand member of splined shaft 1 and bearing block 2 It is connected by locking device.
The locking device includes left locking nut 10 and right locking nut 11, left locking nut 10 and right locking nut 11 It is hexagonal slotted nut.The left locking nut 10 is located at the left side of left flange assembly 4 and connected with the left end screw thread of splined shaft 1 Connect, left locking nut 10 abuts with the left flange 12 of left flange assembly 4;The right locking nut 11 is located at right flange assembly 5 Right side and it is threadedly coupled with the right-hand member of splined shaft 1, right locking nut 11 abuts with the right flange 13 of right flange assembly 5, left locking Nut 10 and right locking nut 11 limit the axial movement of splined shaft 1 jointly.It ensure that splined shaft 1 and left flange assembly 4 and the right side The transmission stability of flange assembly 5.
Circumferentially arranged with exhaust passage 14 of the connection external world with cavity where bearing and oiling passage in the bearing (ball) cover 3 15, one end of the remote bearing of exhaust passage 14 is exhaust outlet, and exhaust ports are provided with the air bleeding valve 16 that can close exhaust outlet, bearing When the pressure of place cavity reaches certain value, air bleeding valve 16 can be opened;One end of the remote bearing of oiling passage 15 is oiling Mouthful, the through type grease nipple 17 provided with energy sealed oil-filling mouth at pouring orifice.Through type grease nipple 17 and oiling passage 15 be easy to Left bearing 6 and right bearing 7 add lubricating grease.When needing to add lubricating grease, lubricating grease, injection are injected from through type grease nipple 17 During lubricating grease, the air of left bearing 6 and the place cavity of right bearing 7, which takes up space, to be tapered into, and air pressure gradually rises, After reaching certain pressure, air bleeding valve 16 is opened, and air is discharged by exhaust passage 14 from air bleeding valve 16.Therefore, set exhaust logical Road 14 and air bleeding valve 16, left bearing 6 and the pressure of the place cavity of right bearing 7 can be made to be maintained under setting value, beneficial to lubricating grease Addition.
Close to being provided with the first seal section at the right-hand member of left hub splines 18 on the left hub splines 18, the first seal section External diameter is more than the external diameter of the left right-hand member of hub splines 18;Close to being provided with the left end of right hub splines 19 on the right hub splines 19 Second seal section, the external diameter of the second seal section are more than the external diameter of the right left end of hub splines 19.Left oil sealing 8 is sleeved on the first seal section On, right oil sealing 9 is sleeved on the second seal section.
As shown in Figure 4 and Figure 5, to be respectively equipped with first on the left side of the left flange 12 and the right side of right flange 13 recessed The groove 21 of groove 20 and second, left locking nut 10 are engaged with the first groove 20, and right locking nut 11 matches with the second groove 21 Close.
As indicated in fig. 6 and fig. 3, a kind of driving-shaft assembly, including the first power transmission shaft 22 and second driving shaft 23, described first New-type transmission shaft medial support structures 24 as described above, the first transmission are provided between power transmission shaft 22 and the second driving shaft 23 The right-hand member of axle 22 is connected by the first universal joint, the first flange yoke 25 and the left flange assembly 4 of medial support structures 24, the One flange yoke 25 is bolted on the left flange 12 of the left flange assembly 4, and the left end of second driving shaft 23 passes through Two universal joints, the second flange yoke 26 and the right flange assembly 5 of medial support structures 24 are connected, and the second flange yoke 26 passes through spiral shell Bolt is fixed on the right flange 13 of the right flange assembly 5.
Being used cooperatively for first flange yoke 25 and the first universal joint, can make the first power transmission shaft 22 and medial support structures 24 Not on same axis;Being used cooperatively for second flange yoke 26 and the second universal joint, can make second driving shaft 23 and centre Supporting construction 24 is not on same axis.Flange yoke and being used cooperatively for universal joint belong to routine techniques, will not be repeated here. Therefore the first power transmission shaft 22 and second driving shaft 23 can not be located on same axis, realize the first power transmission shaft 22 and second and pass Flexibility is arranged between moving axis 23, solves the problems, such as that the first power transmission shaft 22 and second driving shaft 23 must be coaxial.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited Type.Any person skilled in the art can all be carried out without prejudice under spirit and scope of the present utility model to above-described embodiment Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model God and all equivalent modifications completed under technological thought or change, should be covered by claim of the present utility model.

Claims (8)

1. a kind of New-type transmission shaft medial support structures, including bearing block, bearing (ball) cover and bearing, bearing (ball) cover are fixed on bearing The left end of seat, bearing are located in the cavity that bearing block inner chamber forms with bearing (ball) cover inner chamber, it is characterised in that:Also include flange group Part, splined shaft and oil sealing, the flange assembly include left flange assembly positioned opposite and right flange assembly, left flange assembly bag Include integrally formed left flange and left hub splines, left hub splines be located at the right side of left flange and with left flange coaxial line, it is right Flange assembly includes integrally formed right flange and right hub splines, right hub splines be located at the left side of right flange and with right flange Coaxial line;The bearing includes left bearing and right bearing positioned opposite, and the oil sealing includes left oil sealing and right oil sealing;Left flange Positioned at the left side of bearing (ball) cover, left hub splines runs through bearing (ball) cover and left bearing, leads between left hub splines and bearing (ball) cover Left oil sealing sealing connection is crossed, left bearing is sheathed on the right-hand member of left hub splines;The left end of right hub splines is located in bearing block, right Bearing holder (housing, cover) is located at the left end of right hub splines, and right flange is located at the right side of bearing block, and right hub splines passes through right oil sealing and bearing Seat is tightly connected;Splined shaft runs through left hub splines and right hub splines, and is engaged with left hub splines and right hub splines Drive connection, is connected between splined shaft left end and bearing (ball) cover and between splined shaft right-hand member and bearing block by locking device Connect.
2. New-type transmission shaft medial support structures according to claim 1, it is characterised in that:The locking device includes a left side Locking nut and right locking nut, the left locking nut are located at the left side of left flange assembly and connected with the left end screw thread of splined shaft Connect, left locking nut abuts with the left flange of left flange assembly;The right locking nut be located at the right side of right flange assembly and with The right-hand member threaded connection of splined shaft, right locking nut abut with the right flange of right flange assembly, left locking nut and right locking screw The axial movement of female common limitation splined shaft.
3. New-type transmission shaft medial support structures according to claim 2, it is characterised in that:The end face of the left flange and The first groove and the second groove are respectively equipped with the end face of right flange, left locking nut and the first groove are in close contact, right locking Nut and the second groove are in close contact.
4. New-type transmission shaft medial support structures according to claim 3, it is characterised in that:The left locking nut and the right side Locking nut is hexagonal slotted nut.
5. New-type transmission shaft medial support structures according to claim 1, it is characterised in that:The bearing (ball) cover interior edge week It is to arrange to being communicated with extraneous with the exhaust passage of cavity where bearing and oiling passage, one end of the remote bearing of exhaust passage Gas port, exhaust ports, which are provided with, can close the air bleeding valve of exhaust outlet, and one end of the remote bearing of oiling passage is pouring orifice, pouring orifice Place is provided with the through type grease nipple of energy sealed oil-filling mouth.
6. New-type transmission shaft medial support structures according to claim 1, it is characterised in that:The left hub splines tightens The first seal section is provided with adjacent left hub splines right-hand member, the external diameter of the first seal section is more than the external diameter of left hub splines right-hand member;Institute State close to the second seal section is provided with right hub splines left end on right hub splines, the external diameter of the second seal section is more than right splined shaft Cover the external diameter of left end;Left oil-sealing sleeve is on the first seal section, and right oil-sealing sleeve is on the second seal section.
7. a kind of driving-shaft assembly, including the first power transmission shaft and second driving shaft, it is characterised in that:First power transmission shaft and institute State and be provided with New-type transmission shaft medial support structures as claimed in any of claims 1 to 6 between second driving shaft, The right-hand member of first power transmission shaft is connected by the left flange assembly of the first universal joint, the first flange yoke and medial support structures, First flange yoke is fixed on the left flange assembly, the left end of second driving shaft by the second universal joint, the second flange yoke with The right flange assembly drive connection of medial support structures, the second flange yoke are fixed on the right flange assembly.
8. driving-shaft assembly according to claim 7, it is characterised in that:First flange yoke is bolted on a left side On the left flange of flange assembly, second flange yoke is bolted on the right flange of right flange assembly.
CN201720738084.8U 2017-06-23 2017-06-23 A kind of New-type transmission shaft medial support structures and driving-shaft assembly Withdrawn - After Issue CN206958116U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720738084.8U CN206958116U (en) 2017-06-23 2017-06-23 A kind of New-type transmission shaft medial support structures and driving-shaft assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720738084.8U CN206958116U (en) 2017-06-23 2017-06-23 A kind of New-type transmission shaft medial support structures and driving-shaft assembly

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CN206958116U true CN206958116U (en) 2018-02-02

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107218314A (en) * 2017-06-23 2017-09-29 河南骏通车辆有限公司 A kind of New-type transmission shaft medial support structures and driving-shaft assembly
CN109067071A (en) * 2018-08-31 2018-12-21 江苏金丰机电有限公司 A kind of low noise motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107218314A (en) * 2017-06-23 2017-09-29 河南骏通车辆有限公司 A kind of New-type transmission shaft medial support structures and driving-shaft assembly
CN107218314B (en) * 2017-06-23 2023-05-05 河南骏通车辆有限公司 Transmission shaft middle supporting structure and transmission shaft assembly
CN109067071A (en) * 2018-08-31 2018-12-21 江苏金丰机电有限公司 A kind of low noise motor

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