CN113803361B - New energy automobile reinforcing formula transmission shaft - Google Patents
New energy automobile reinforcing formula transmission shaft Download PDFInfo
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- CN113803361B CN113803361B CN202111358894.8A CN202111358894A CN113803361B CN 113803361 B CN113803361 B CN 113803361B CN 202111358894 A CN202111358894 A CN 202111358894A CN 113803361 B CN113803361 B CN 113803361B
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- shaft sleeve
- sleeve
- transmission shaft
- new energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
- F16C3/03—Shafts; Axles telescopic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
- F16D3/38—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/80—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive in which a fluid is used
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
- F16C2326/06—Drive shafts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention relates to the technical field of new energy automobile accessories, in particular to an enhanced transmission shaft of a new energy automobile. The new energy automobile enhanced transmission shaft comprises a shaft sleeve, and a universal joint A is mounted on the shaft sleeve; one end of the shaft lever is movably connected with the shaft sleeve, the other end of the shaft lever is provided with an integrally formed shaft head, and a universal joint B is fixedly arranged on the shaft head; one end of the shaft sleeve is provided with a torque reducing structure capable of offsetting part of the torque force transmitted by the shaft rod, and the other end of the shaft sleeve is provided with an amplitude reducing structure capable of reducing the amplitude of the transmission shaft. Compared with the traditional transmission from the shaft rod to the shaft sleeve, the new energy automobile enhanced transmission shaft provided by the invention has the advantages that the problems that the transmission shaft is twisted off and damaged due to the fact that the instant torsion is overlarge during torsion transmission of the shaft rod and the shaft sleeve are solved.
Description
Technical Field
The invention relates to the technical field of new energy automobile accessories, in particular to an enhanced transmission shaft of a new energy automobile.
Background
The new energy automobile adopts unconventional automobile fuel as a power source or conventional automobile fuel, adopts a novel vehicle-mounted power device, integrates advanced technologies in the aspects of power control and driving of the automobile, forms an automobile with advanced technical principle, new technology and new structure, and comprises a pure electric automobile, an extended range electric automobile, a hybrid electric automobile, a fuel cell electric automobile and the like.
In the transmission shaft assembly of the existing new energy automobile technology, a transmission shaft shell is a long cylindrical metal shell, the machining precision requirement is higher, the weight is large, and the transmission shaft is easy to cause the problems of transmission shaft twist-off and damage due to the fact that torque force transmission between the shaft rod and the shaft sleeve is achieved by directly transmitting torque force borne by the shaft rod to the shaft sleeve.
Therefore, a new enhanced transmission shaft for a new energy automobile is needed to solve the above technical problems.
Disclosure of Invention
In order to solve the technical problem, the invention provides an enhanced transmission shaft of a new energy automobile.
The invention provides a new energy automobile enhanced transmission shaft, which comprises:
the universal joint comprises a shaft sleeve, a bearing and a connecting piece, wherein a universal joint A is arranged on the shaft sleeve;
one end of the shaft lever is movably connected with the shaft sleeve, the other end of the shaft lever is provided with an integrally formed shaft head, and a universal joint B is fixedly arranged on the shaft head;
through the setting of universal joint A and universal joint B for the transmission shaft has the bending nature, does not influence the turn process of car, and the swing joint of axle sleeve and axostylus axostyle makes the transmission shaft have flexible performance, can automatically regulated apart from between derailleur and the transaxle
One end of the shaft sleeve is provided with a torque reducing structure capable of offsetting part of the torque force transmitted by the shaft lever, and the other end of the shaft sleeve is provided with an amplitude reducing structure capable of reducing the amplitude of the transmission shaft;
the twist reducing structure comprises a sliding cavity, a plurality of sliding cavities distributed in an annular mode are formed in a connecting cavity, in which the shaft sleeve is inserted into the shaft rod, the shaft sleeves on two sides of each sliding cavity are respectively provided with a circular cavity communicated with the sliding cavity, a plurality of steel balls are stored in each circular cavity, when the transmission shaft is subjected to torsional force during power transmission, the torsional force applied to the shaft rod is dispersed on each steel rod, the steel rod is in rolling contact with each steel ball, so that the torsional force is dispersed on each steel ball and is subsequently accumulated on the shaft sleeve, compared with the traditional transmission from the shaft rod to the shaft sleeve, the transmission shaft reduces the problem that the transmission shaft is twisted off and damaged due to the fact that the instantaneous torsional force is too large during the transmission of the torsional force from the shaft rod and the shaft sleeve, and when the shaft rod stretches along the shaft sleeve, the arc-shaped cavities formed on two sides of the steel rod are in rolling contact with the extending parts of the steel balls in the circular cavities, therefore, the steel balls roll due to the expansion of the shaft lever, so that the smoothness of the transmission shaft during expansion is improved, and the center of the shaft lever cannot be staggered when the shaft lever and the shaft sleeve are installed under the limitation of the steel balls;
the amplitude reducing structure comprises an inserting hole and an annular groove, the inserting hole is formed in a connecting cavity of the shaft sleeve connected with the universal joint A, a plurality of groups of elastic annular air bags are fixedly embedded in the inserting hole, and the annular groove is formed in the end head of the end of the shaft sleeve; the built-in elastic annular air bag is propped against the annular arc groove on the shaft column and expands towards two sides, so that the elastic annular air bag is further extruded by the aid of the resonant torque force, and accordingly the elastic annular air bag can absorb part of the torque force and reduce the amplitude of the transmission shaft.
Preferably, a plurality of steel bars which are arranged in an annular mode and distributed axially are fixedly embedded on the shaft lever, and arc-shaped cavities are formed in two side walls of each steel bar.
Preferably, the billet on the axostylus axostyle is inserted respectively and is established to each sliding chamber that the axle sleeve was seted up, and the arc chamber of billet both sides and the steel ball extending part rolling contact of corresponding position, and it has sufficient lubricating oil to fill between each steel ball in the circular chamber, because it has sufficient lubricating oil to fill between each steel ball, consequently when transmission shaft torsion is too big in the twinkling of an eye, the steel ball can carry out the small-angle rotation along the arc chamber of billet both sides for lubricating oil in the clearance can flow along with the small-angle rotation of steel ball, thereby can cut down the torsion of partial transmission, the effectual transmission shaft that has protected.
Preferably, install on the universal joint A with axle sleeve swing joint's adapting unit, adapting unit includes the jack-post, the fixed gomphosis of tail end of jack-post is on universal joint A, just a plurality of equidistance distribution's annular arc groove is seted up to the outer column wall of jack-post, the tail end cover of jack-post is equipped with the joint annular sheet with the axle center, just connection pad and jack-post fixed connection are passed through to the bottom of joint annular sheet.
Preferably, the jack-post is inserted and established to the axle sleeve and set up insert and establish downthehole, and joint annular piece is inserted and is established to the ring channel that the axle sleeve end was seted up, the elastic ring shape gasbag in the axle sleeve is embedded in the annular arc groove that the jack-post was seted up, just support and expand to both sides in the elastic ring shape gasbag, because elastic ring shape gasbag is elastic construction, eliminated in structural style because of the transmission shaft vibration cause the hidden danger of jack-post with the sealed inefficacy of axle sleeve connection, also guaranteed the sealed effect of jack-post with the axle sleeve simultaneously and sealed long-term effect.
Preferably, glue is coated on the inner side and the outer side of the clamping annular piece and in the annular groove formed in the end of the shaft sleeve, so that the effect of protecting the transmission shaft can be achieved, the abrasion of the shaft column and the shaft sleeve generated when the shaft column and the shaft sleeve are in contact is reduced, and meanwhile, the vibration of the transmission shaft generated in the rotating process can be eliminated.
Preferably, a protection component is installed between the shaft sleeve and the shaft head, the protection component comprises an elastic hose, sealing sleeves are fixedly embedded at two ends of the elastic hose, the sealing sleeves at one end of the elastic hose are fixedly embedded in shaft sleeve embedding grooves formed in the outer wall of the shaft sleeve, the sealing sleeves at the other end of the elastic hose are fixedly embedded in shaft head embedding grooves formed in the outer wall of the shaft head, and when the shaft rod stretches along the shaft sleeve, the elastic hose also stretches, so that the shaft rod and steel bars on the shaft rod are effectively protected, and meanwhile, the loss of lubricating oil is reduced.
Preferably, a bearing bush component is installed between the shaft sleeve and the connecting component, the bearing bush component comprises a connecting sheet, the connecting sheet is provided with two sheets and arranged in parallel, two half shaft rings with the same specification are arranged on the fixing frame between the connecting sheet, and the two connecting sheets and the two half shaft rings form a hoop structure.
Preferably, two semi-shaft collars in two sets of staple bolt structures are laminated respectively in the axle sleeve locking inslot that the axle sleeve outer wall was seted up and the jack-post locking inslot that the jack-post outer wall was seted up, and two connection pieces pass through set screw fixed connection in two sets of staple bolt structures, utilize the axle bush part to fix jack-post and axle sleeve, follow-up this transmission shaft dress carries out high-speed when rotatory on the dynamic balance detecting instrument, measure the size and the position of transmission shaft unbalance, beat the plural hole on the staple bolt structure that is close to one side that surplus unbalance is big, eliminate the surplus unbalance in this position, accomplish the quality testing and the adjustment accuracy that improve this transmission shaft.
Preferably, the universal joint A and the universal joint B are identical in structure and can be interchanged.
Compared with the related art, the new energy automobile enhanced transmission shaft provided by the invention has the following beneficial effects:
1. when the transmission shaft is subjected to the action of the torsional force during power transmission, the torsional force borne by the shaft rod is dispersed on each steel bar, and the steel bars are in rolling contact with each steel ball, so that the torsional force is dispersed on each steel ball and is subsequently accumulated on the shaft sleeve;
2. because sufficient lubricating oil is filled among the steel balls, when the instantaneous torsion of the transmission shaft is overlarge, the steel balls can rotate at a small angle along the arc-shaped cavities at the two sides of the steel bar, so that the lubricating oil in the gaps can flow along with the small-angle rotation of the steel balls, the part of transmitted torsion can be reduced, and the transmission shaft is effectively protected;
3. when the shaft lever is stretched along the shaft sleeve, the arc-shaped cavities arranged on the two sides of the steel bar are in rolling contact with the extending parts of the steel balls in the circular cavities, so that the steel balls roll due to the stretching of the shaft lever, the smoothness of the transmission shaft during stretching is improved, and the center of the shaft lever cannot be dislocated when the shaft lever and the shaft sleeve are installed under the limitation of the steel balls;
4. the elastic annular air bag arranged in the transmission shaft is propped against the annular arc groove on the shaft column and expands towards two sides, so that the elastic annular air bag is further extruded by the resonance torque force, and the elastic annular air bag can absorb part of the torque force and reduce the amplitude of the transmission shaft;
the elastic annular air bag is of an elastic structure, so that the hidden danger of failure of connection and sealing of the shaft column and the shaft sleeve caused by vibration of the transmission shaft is eliminated in the structural form, and the sealing effect and the long-term sealing effect of the shaft column and the shaft sleeve are ensured.
Drawings
Fig. 1 is a schematic structural diagram of a new energy vehicle enhanced transmission shaft according to a preferred embodiment of the present invention;
fig. 2 is a second schematic structural diagram of a new energy vehicle enhanced transmission shaft according to a preferred embodiment of the present invention;
FIG. 3 is one of the schematic partial cross-sectional views of the bushing of FIG. 1;
FIG. 4 is an enlarged view of the structure at A shown in FIG. 3;
FIG. 5 is an enlarged view of the structure at B in FIG. 4;
FIG. 6 is a schematic view of the shaft of FIG. 2;
FIG. 7 is an enlarged view of the structure shown at C in FIG. 6;
FIG. 8 is a second partial cross-sectional structural view of the bushing shown in FIG. 1;
FIG. 9 is an enlarged view of the structure shown in FIG. 8 at D;
FIG. 10 is a schematic view of the connection member shown in FIG. 1 to a universal joint;
FIG. 11 is a partial cross-sectional structural schematic view of the coupling member shown in FIG. 10;
FIG. 12 is a schematic view of the containment component shown in FIG. 1;
figure 13 is a schematic view of the construction of the bearing shell component shown in figure 1.
Reference numbers in the figures: 1. a shaft sleeve; 2. a shaft lever; 3. a torque reduction structure; 31. a sliding cavity; 32. a circular lumen; 33. steel balls; 4. a steel bar; 5. an arc-shaped cavity; 6. a shaft head; 7. a amplitude reduction structure; 71. inserting the hole; 72. an annular groove; 73. an elastic annular air bag; 8. a connecting member; 81. a column shaft; 82. an annular arc groove; 83. clamping the annular sheet; 9. a universal joint A; 9', a universal joint B; 9a, a shielding component; 9a1, flexible hose; 9a2, sealing sleeve; 9b, shaft sleeve embedding grooves; 9c, a shaft head embedding groove; 9d, a bearing bush component; 9d1, connecting sheet; 9d2, half shaft ring; 9d3, set screw; 9e, shaft sleeve locking grooves; 9f, and locking the shaft column.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Referring to fig. 1 to 13, an embodiment of the present invention provides an enhanced transmission shaft for a new energy vehicle, where the enhanced transmission shaft for a new energy vehicle includes: the shaft sleeve comprises a shaft sleeve 1 and a shaft rod 2, wherein a universal joint A9 is installed on the shaft sleeve 1, one end of the shaft rod 2 is movably connected with the shaft sleeve 1, an integrally formed shaft head 6 is arranged at the other end of the shaft rod 2, a universal joint B9 'is fixedly installed on the shaft head 6, and the universal joint A9 and the universal joint B9' are identical in structure and can be interchanged.
It should be noted that: firstly, through the arrangement of the universal joint A9 and the universal joint B9', the transmission shaft has bending property, the turning process of an automobile is not influenced, and the movable connection of the shaft sleeve 1 and the shaft lever 2 enables the transmission shaft to have telescopic performance, and the distance between the transmission and the drive axle can be automatically adjusted.
In the embodiment of the present invention, please refer to fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, and fig. 7, a descending structure 3 capable of offsetting a part of torque force transmitted by the shaft rod 2 is disposed at one end of the shaft sleeve 1, the descending structure 3 includes a sliding cavity 31, a plurality of sliding cavities 31 distributed annularly are disposed in a connecting cavity where the shaft sleeve 1 is inserted into the shaft rod 2, circular cavities 32 communicated with the sliding cavities 31 are disposed in the shaft sleeve 1 at two sides of each sliding cavity 31, and a plurality of steel balls 33 are stored in each circular cavity 32;
a plurality of steel bars 4 which are arranged annularly and distributed axially are fixedly embedded on the shaft lever 2, arc-shaped cavities 5 are formed in two side walls of each steel bar 4, the steel bars 4 on the shaft lever 2 are respectively inserted into the sliding cavities 31 formed in the shaft sleeve 1, the arc-shaped cavities 5 on two sides of each steel bar 4 are in rolling contact with the extending parts of the steel balls 33 at the corresponding positions, and sufficient lubricating oil is filled between the steel balls 33 in the circular cavity 32.
It should be noted that: when the transmission shaft receives torsional force effect at transmission power, the torsion that axostylus axostyle 2 received disperses on each billet 4, and billet 4 is because with each steel ball 33 rolling contact to with torsion dispersion on each steel ball 33, follow-up gathering again on the axle sleeve 1, therefore axostylus axostyle 2 and axle sleeve 1 are when the torsion transmission in this transmission shaft, and the main form is:
shaft rod 2 (concentration torque) → steel strip 4 (dispersion to linear torque) → steel balls 33 (further dispersion to point-like torque) → sleeve 1 (resultant concentration torque);
compared with the traditional transmission from the shaft lever 2 to the shaft sleeve 1, the transmission shaft reduces the problems that the transmission shaft is twisted off and damaged due to the fact that instant torsion is overlarge when the torque force is transmitted between the shaft lever 2 and the shaft sleeve 1, and because sufficient lubricating oil is filled between the steel balls 33, when the instant torsion force is overlarge, the steel balls 33 can rotate at a small angle along the arc-shaped cavities 5 on the two sides of the steel bar 4, the lubricating oil in the gap can flow along with the small-angle rotation of the steel balls 33, so that partial transmitted torque force can be reduced, and the transmission shaft is effectively protected;
it should also be noted that: when the shaft lever 2 extends and retracts along the shaft sleeve 1, the arc-shaped cavities 5 formed in the two sides of the steel bar 4 are in rolling contact with the extending parts of the steel balls 33 in the circular cavities 32, so that the steel balls 33 roll due to the extension and retraction of the shaft lever 2, the smoothness of the transmission shaft during extension and retraction is improved, and the problem of dislocation of the center of the shaft lever 2 and the shaft sleeve 1 during installation is solved under the limitation of the steel balls 33;
in the embodiment: the mutual abutment of the steel balls 33 in each circular cavity 32 is considered to be that the circular cavity 32 is not easy to move along the circular cavity 32, but can rotate in the circular cavity 32. In an embodiment of the present invention, referring to fig. 1 and 12, a protective component 9a is installed between the shaft sleeve 1 and the shaft head 6, the protective component 9a includes an elastic hose 9a1, two ends of the elastic hose 9a1 are both fixedly embedded with sealing sleeves 9a2, the sealing sleeve 9a2 at one end of the elastic hose 9a1 is fixedly embedded in a shaft sleeve embedding groove 9b formed in an outer wall of the shaft sleeve 1, and the sealing sleeve 9a2 at the other end of the elastic hose 9a1 is fixedly embedded in a shaft head embedding groove 9c formed in an outer wall of the shaft head 6.
It should be noted that: when the shaft rod 2 extends and contracts along the shaft sleeve 1, the elastic hose 9a1 is also stretched, so that the shaft rod 2 and the steel bar 4 on the shaft rod 2 are effectively protected, and the loss of lubricating oil is reduced.
In the embodiment of the present invention, referring to fig. 8, 9, 10 and 11, an amplitude reducing structure 7 for reducing the amplitude of the transmission shaft is disposed at the other end of the shaft sleeve 1, and the amplitude reducing structure 7 includes an insertion hole 71 and an annular groove 72, an insertion hole 71 is disposed in a connection cavity of the shaft sleeve 1 connected to the universal joint a9, a plurality of groups of elastic annular airbags 73 are fixedly embedded in the insertion hole 71, and the annular groove 72 is disposed at the end of the shaft sleeve 1;
the universal joint A9 is provided with a connecting part 8 movably connected with the shaft sleeve 1, the connecting part 8 comprises a shaft column 81, the tail end of the shaft column 81 is fixedly embedded on the universal joint A9, and the outer column wall of the axial column 81 is provided with a plurality of annular arc grooves 82 which are distributed at equal intervals, the tail end of the axial column 81 is sleeved with a clamping annular sheet 83 which has the same axle center, the bottom of the clamping annular sheet 83 is fixedly connected with the axial column 81 through a connecting disc, the shaft post 81 is inserted into the insertion hole 71 formed in the shaft sleeve 1, the clamping annular sheet 83 is inserted into the annular groove 72 formed in the end of the shaft sleeve 1, the elastic annular air bag 73 in the shaft sleeve 1 is embedded in an annular arc groove 82 formed in a shaft column 81, and the elastic annular air bag 73 is abutted and expanded towards two sides, wherein the elastic annular air bag 73 is filled with nitrogen and other gases (the scheme adopts the filling of nitrogen).
It should be noted that: when the speed of the transmission shaft is close to the bending natural vibration frequency of the transmission shaft and resonance occurs, the built-in elastic annular air bag 73 is abutted against the annular arc groove 82 on the shaft column 81 and expands towards two sides, so that the resonance torque force is generated to further extrude the elastic annular air bag 73, and the elastic annular air bag 73 can absorb partial torque force and reduce the amplitude of the transmission shaft;
it should also be noted that: when the transmission shaft is overhauled or transported, the shaft column 81 can be detached from the shaft sleeve 1, distributed maintenance or shipment is carried out on the shaft column 81, convenience is improved, and when the shaft column 81 or the universal joint 9A on the shaft column 81 is damaged, the shaft column 81 and the universal joint 9A connected with the shaft column 81 can be replaced, so that economic loss is reduced;
in the present embodiment: glue is coated on the inner side and the outer side of the clamping annular sheet 83 and in the annular groove 72 formed in the end of the shaft sleeve 1, so that the effect of protecting the transmission shaft can be achieved, the abrasion of the shaft column 81 and the shaft sleeve 1 in the contact process can be reduced, and the vibration of the transmission shaft in the rotation process can be eliminated.
In an embodiment of the present invention, referring to fig. 1 and 13, a bearing bush component 9d is installed between the shaft sleeve 1 and the connecting component 8, the bearing bush component 9d includes a connecting sheet 9d1, the connecting sheet 9d1 is provided with two sheets and arranged in parallel, two half shaft rings 9d2 with the same specification are fixed between the two connecting sheets 9d1, the two connecting sheets 9d1 and the two half shaft rings 9d2 form a hoop structure, the two half shaft rings 9d2 in the two sets of hoop structures are respectively attached to a shaft sleeve locking groove 9e formed in an outer wall of the shaft sleeve 1 and a shaft column locking groove 9f formed in an outer wall of the shaft column 81, and the two connecting sheets 9d1 in the two sets of hoop structures are fixedly connected by a fixing screw 9d 3.
In the present embodiment: the axle post 81 and the axle sleeve 1 can be fixed by utilizing the bearing bush part 9d, the size and the direction of the unbalance amount of the transmission shaft are measured when the transmission shaft is subsequently arranged on a dynamic balance detection instrument to rotate at a high speed, a plurality of holes are drilled on the hoop structure close to one side with the large residual unbalance amount, the residual unbalance amount in the direction is eliminated, and the improvement of the quality detection and the adjustment precision of the transmission shaft is completed.
The working principle of the enhanced transmission shaft of the new energy automobile provided by the invention is as follows: .
Firstly, through the arrangement of a universal joint A9 and a universal joint B9', a transmission shaft has bending property, the turning process of an automobile is not influenced, and the movable connection of the shaft sleeve 1 and the shaft rod 2 enables the transmission shaft to have telescopic performance and can automatically adjust the distance between a transmission and a drive axle;
when the transmission shaft receives torsional force effect at transmission power, the torsion that axostylus axostyle 2 received disperses on each billet 4, and billet 4 is because with each steel ball 33 rolling contact to with torsion dispersion on each steel ball 33, follow-up gathering again on the axle sleeve 1, therefore axostylus axostyle 2 and axle sleeve 1 are when the torsion transmission in this transmission shaft, and the main form is: compared with the conventional transmission from the shaft rod 2 to the shaft sleeve 1, the transmission shaft reduces the problem that the transmission shaft is twisted off and damaged due to the fact that the instantaneous torque force is too large when the shaft rod 2 and the shaft sleeve 1 transmit the torque force, and because sufficient lubricating oil is filled between the steel balls 33, when the instantaneous torque force of the transmission shaft is too large, the steel balls 33 can rotate at small angles along the arc-shaped cavities 5 on two sides of the steel rod 4, so that the lubricating oil in the gap can flow along the small-angle rotation of the steel balls 33, thereby reducing the torque force of partial transmission, effectively protecting the transmission shaft, and when the shaft rod 2 extends and retracts along the shaft sleeve 1, because the arc-shaped cavities 5 on two sides of the steel rod 4 are in rolling contact with the extending parts of the steel balls 33 in the circular cavity 32, therefore, the steel balls 33 roll when the shaft lever 2 stretches, the smoothness of the transmission shaft during stretching is improved, the center of the shaft lever 2 and the shaft sleeve 1 cannot be staggered when the shaft lever 2 and the shaft sleeve 1 are installed under the limitation of the steel balls 33, the elastic hose 9a1 also stretches while the shaft lever 2 stretches along the shaft sleeve 1, the shaft lever 2 and the steel bars 4 on the shaft lever 2 are effectively protected, and the loss of lubricating oil is reduced;
when the speed of the transmission shaft is close to the bending natural vibration frequency and resonance occurs, the built-in elastic annular air bag 73 is abutted against the annular arc groove 82 on the shaft column 81 and expands towards two sides, so that the resonance torque force is generated to further extrude the elastic annular air bag 73, and the elastic annular air bag 73 can absorb partial torque force and reduce the amplitude of the transmission shaft, meanwhile, because the elastic annular air bag 73 with the stored nitrogen is of an elastic structure, the hidden trouble that the connection and the sealing of the shaft column 81 and the shaft sleeve 1 are failed due to the vibration of the transmission shaft is eliminated in the structural form, the sealing effect and the long-term sealing effect of the shaft column 81 and the shaft sleeve 1 are ensured, when the transmission shaft is overhauled or transported, the shaft column 81 can be detached from the shaft sleeve 1 and is maintained or transported in a distributed manner, the convenience is improved, and when the universal joint 9A on the shaft column 81 or the shaft column 81 is damaged, can change the universal joint 9A that the jack-post 81 and jack-post 81 are connected, reduce economic loss, and utilize axle bush part 9d to fix jack-post 81 and axle sleeve 1, follow-up this transmission shaft dress carries out high-speed when rotatory on the dynamic balance detecting instrument, measures the size and the position of transmission shaft unbalance amount, beats a plurality of holes on the staple bolt structure that is close to the big one side of surplus unbalance amount, eliminates the surplus unbalance amount in this position, accomplishes the quality testing and the adjustment accuracy that improves this transmission shaft.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A new energy automobile reinforced transmission shaft comprises:
the universal joint comprises a shaft sleeve (1), wherein a universal joint A (9) is mounted on the shaft sleeve (1);
one end of the shaft lever (2) is movably connected with the shaft sleeve (1), the other end of the shaft lever (2) is provided with an integrally formed shaft head (6), and a universal joint B (9') is fixedly arranged on the shaft head (6);
it is characterized in that the preparation method is characterized in that,
one end of the shaft sleeve (1) is provided with a torque reducing structure (3) which can counteract part of torque force transmitted by the shaft lever (2), and the other end of the shaft sleeve (1) is provided with an amplitude reducing structure (7) which reduces the amplitude of the transmission shaft;
the torque reducing structure (3) comprises sliding cavities (31), a plurality of sliding cavities (31) which are distributed annularly are formed in a connecting cavity of the shaft sleeve (1) inserted into the shaft rod (2), circular cavities (32) communicated with the sliding cavities (31) are formed in the shaft sleeve (1) on two sides of each sliding cavity (31), and a plurality of abutted steel balls (33) are stored in each circular cavity (32);
the amplitude reducing structure (7) comprises an inserting hole (71) and an annular groove (72), the inserting hole (71) is formed in a connecting cavity of the shaft sleeve (1) connected with the universal joint A (9), a plurality of groups of elastic annular air bags (73) are fixedly embedded in the inserting hole (71), and the annular groove (72) is formed in the end head of the shaft sleeve (1) at the end;
the universal joint A (9) is provided with a connecting part (8) movably connected with the shaft sleeve (1), the connecting part (8) comprises a shaft column (81), the tail end of the shaft column (81) is fixedly embedded on the universal joint A (9), a plurality of annular arc grooves (82) distributed at equal intervals are formed in the outer column wall of the shaft column (81), the tail end of the shaft column (81) is sleeved with a clamping annular sheet (83) with the same axis, and the bottom of the clamping annular sheet (83) is fixedly connected with the shaft column (81) through a connecting disc;
the shaft column (81) is inserted into an insertion hole (71) formed in the shaft sleeve (1), the clamping annular sheet (83) is inserted into an annular groove (72) formed in the end of the shaft sleeve (1), an elastic annular air bag (73) in the shaft sleeve (1) is embedded into an annular arc groove (82) formed in the shaft column (81), and the elastic annular air bag (73) is abutted and expanded towards two sides;
glue is coated on the inner side and the outer side of the clamping annular sheet (83) and in an annular groove (72) formed in the end of the shaft sleeve (1).
2. The new energy automobile enhanced transmission shaft as claimed in claim 1, wherein a plurality of axially arranged and annularly distributed steel bars (4) are fixedly embedded on the shaft lever (2), and arc-shaped cavities (5) are formed in two side walls of each steel bar (4).
3. The reinforced transmission shaft of the new energy automobile as claimed in claim 2, wherein the steel bars (4) on the shaft lever (2) are respectively inserted into the sliding cavities (31) formed in the shaft sleeve (1), the arc cavities (5) on both sides of the steel bars (4) are in rolling contact with the extending portions of the steel balls (33) at the corresponding positions, and sufficient lubricating oil is filled between the steel balls (33) in the circular cavity (32).
4. The new energy automobile enhanced transmission shaft as claimed in claim 1, wherein a protection component (9 a) is installed between the shaft sleeve (1) and the shaft head (6), the protection component (9 a) comprises an elastic hose (9 a 1), two ends of the elastic hose (9 a 1) are fixedly embedded with sealing sleeves (9 a 2), the sealing sleeves (9 a 2) at one end of the elastic hose (9 a 1) are fixedly embedded in shaft sleeve embedding grooves (9 b) formed in the outer wall of the shaft sleeve (1), and the sealing sleeves (9 a 2) at the other end of the elastic hose (9 a 1) are fixedly embedded in shaft head embedding grooves (9 c) formed in the outer wall of the shaft head (6).
5. The reinforced propeller shaft of the new energy automobile as claimed in claim 1, wherein a bushing part (9 d) is installed between the shaft sleeve (1) and the connecting part (8), the bushing part (9 d) includes a connecting piece (9 d 1), the connecting piece (9 d 1) is provided with two pieces and is arranged in parallel, two half shaft rings (9 d 2) with the same specification are arranged on the fixing frame between the two pieces of the connecting piece (9 d 1), and the two pieces of the connecting piece (9 d 1) and the two half shaft rings (9 d 2) form a hoop structure.
6. The new energy automobile reinforced transmission shaft according to claim 5, wherein two half-collars (9 d 2) in the two sets of hoop structures are respectively fitted in a shaft sleeve locking groove (9 e) formed in the outer wall of the shaft sleeve (1) and a shaft post locking groove (9 f) formed in the outer wall of the shaft post (81), and two connecting pieces (9 d 1) in the two sets of hoop structures are fixedly connected through a fixing screw (9 d 3).
7. The new energy automobile enhanced transmission shaft as claimed in claim 1, wherein the universal joint A (9) and the universal joint B (9') are identical in structure and can be interchanged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111358894.8A CN113803361B (en) | 2021-11-17 | 2021-11-17 | New energy automobile reinforcing formula transmission shaft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111358894.8A CN113803361B (en) | 2021-11-17 | 2021-11-17 | New energy automobile reinforcing formula transmission shaft |
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| CN113803361A CN113803361A (en) | 2021-12-17 |
| CN113803361B true CN113803361B (en) | 2022-06-21 |
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| CN115076246A (en) * | 2022-06-28 | 2022-09-20 | 陕西航空电气有限责任公司 | Shaft coupler capable of isolating axial vibration |
| CN115596774A (en) * | 2022-11-07 | 2023-01-13 | 江苏润星辰机械制造有限公司（Cn） | Transmission shaft for new energy automobile |
| WO2024136809A1 (en) * | 2022-12-23 | 2024-06-27 | Ti̇rsan Kardan Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ | Safety clutch system for motor vehicles |
| CN119353330A (en) * | 2024-12-30 | 2025-01-24 | 苏州高求美达橡胶金属减震科技有限公司 | Automobile transmission shaft bushing assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB574468A (en) * | 1944-01-26 | 1946-01-07 | Stieger Helmut John | A new or improved flexible shaft coupling |
| JP4190905B2 (en) * | 2003-02-06 | 2008-12-03 | 日本精工株式会社 | Vehicle steering device |
| CN103912570B (en) * | 2013-01-08 | 2016-03-02 | 黄天梵 | High elasticity spline stretches transmission shaft |
| CN203348357U (en) * | 2013-06-27 | 2013-12-18 | 韦中钟 | Universal transmission shaft angle shaft assembly for special vehicle |
| DE102014105822B4 (en) * | 2014-04-25 | 2016-03-03 | Thyssenkrupp Presta Ag | Steering shaft for a motor vehicle |
| DE102014017555B4 (en) * | 2014-11-28 | 2016-10-13 | Thyssenkrupp Ag | Steering shaft for a motor vehicle |
| JP6211638B2 (en) * | 2016-02-04 | 2017-10-11 | Ntn株式会社 | Constant velocity universal joint |
| CN107269727B (en) * | 2017-08-11 | 2020-05-29 | 安徽江淮汽车集团股份有限公司 | Automobile transmission shaft structure |
| CN207906310U (en) * | 2018-02-12 | 2018-09-25 | 安徽江淮汽车集团股份有限公司 | Truck drive shaft |
| CN108317183A (en) * | 2018-02-12 | 2018-07-24 | 安徽江淮汽车集团股份有限公司 | Truck drive shaft |
| CN211196339U (en) * | 2019-08-23 | 2020-08-07 | 比亚迪股份有限公司 | Steering transmission shaft and vehicle |
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Effective date of registration: 20240402 Address after: No. 12, Park Avenue, Zone B, Luohuang Industrial Park, Jiangjin District, Chongqing 402260 Patentee after: CHONGQING LONGWEN MACHINERY EQUIPMENT Co.,Ltd. Country or region after: China Address before: 310000 Room 403, block B, 4th floor, building 2, No. 351, Changhe Road, Changhe street, Binjiang District, Hangzhou City, Zhejiang Province Patentee before: Hangzhou Huanying Technology Co.,Ltd. Country or region before: China |
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