CN110714989B - Driving shaft convenient to disassemble and disassembling method thereof - Google Patents
Driving shaft convenient to disassemble and disassembling method thereof Download PDFInfo
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- CN110714989B CN110714989B CN201910943298.2A CN201910943298A CN110714989B CN 110714989 B CN110714989 B CN 110714989B CN 201910943298 A CN201910943298 A CN 201910943298A CN 110714989 B CN110714989 B CN 110714989B
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- star
- sleeve
- steel wire
- mandrel
- ring
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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
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/221—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being located in sockets in one of the coupling parts
Abstract
The invention discloses a driving shaft convenient to disassemble, relates to the field of automobile driving shafts, and aims to solve the problem that a universal joint at the fixed end of a traditional driving shaft is inconvenient to disassemble, and the technical scheme is characterized in that: the steel wire clamping device comprises a bell-shaped shell, a star-shaped sleeve arranged in the bell-shaped shell and steel balls arranged in the bell-shaped shell and the star-shaped sleeve, wherein the center of the star-shaped sleeve is connected with a mandrel through a spline, a first annular groove is formed in the inner wall of the star-shaped sleeve along the circumference, a second annular groove is formed in the outer wall of the mandrel along the circumference, steel wire retaining rings are embedded in the first annular groove and the second annular groove and comprise at least two protruding sections, the protruding sections are embedded in the first annular groove, and two side walls of the first annular groove are provided with inclined pre-disengaging angles. The driving shaft convenient to disassemble has the characteristics of convenience in disassembly, no damage to the mandrel during disassembly, elimination of axial movement clearance and guarantee of not falling off easily after loading.
Description
Technical Field
The invention relates to the technical field of automobile driving shafts, in particular to a driving shaft convenient to disassemble and a disassembling method thereof.
Background
The development of the automobile front wheel driving system obviously enhances the maneuvering control performance of the automobile, and the constant velocity universal joint is used as a key mechanism in the automobile driving system and has high requirements on the bearing capacity, the service performance and the durability. A constant velocity universal joint is a mechanism that connects two shafts whose axes do not coincide and transmits motion at the same angular velocity between the two shafts.
The constant velocity universal joint generally comprises an outer race, an inner race arranged in the outer race, and a steel ball arranged between the outer race and the inner race, wherein the center of the inner race is connected with a mandrel, and in order to ensure that the inner race and the mandrel are firmly connected and can bear enough drawing strength, a steel wire check ring is arranged between the inner race and the mandrel, so that the inner race is prevented from falling off from the mandrel. The tradition is sheathe in at dabber and star and is offered steel wire retainer ring groove, at the annular steel wire retainer ring of steel wire retainer ring inslot joint, and steel wire retainer ring locks in steel wire retainer ring inslot after the installation, when needs are dismantled, can't normally pull down from the outside, can only destroy the retaining ring through strikeing, but the retaining ring is because whole atress, area of contact is big, and the unborn hard dismantlement can cause the permanent destruction of dabber, and this also is the difficult problem of treating the solution urgently in the trade.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the driving shaft which is convenient to disassemble and has the advantage of convenience in disassembly.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a convenient drive shaft of dismantling, includes the bell shell, establishes the inner star cover of bell shell, establishes the steel ball in bell shell and inner star cover, there is the dabber at the inner star cover center through splined connection, first annular has been seted up along the circumference to the inner star cover wall, the second annular has been seted up along the circumference to the dabber outer wall, the embedded steel wire retaining ring that is equipped with of first annular and second annular, the steel wire retaining ring includes two at least protruding sections, protruding section inlays and locates in the first annular, the first annular both sides wall is all seted up the predecomposition angle of slope.
By adopting the technical scheme, after the installation is finished, the protruding section of the steel wire check ring is embedded in the first annular groove, and other parts are embedded in the second annular groove, so that the steel wire check ring can bear enough drawing strength and cannot fall off in the normal use process of the driving shaft; when needs are dismantled, through set up the angle of taking off in advance of slope simultaneously in the both sides of first annular, can be through the mode of strikeing the bell shell body, the part that stretches into the second annular through the interior wheel of star cover to the protruding section of steel wire retaining ring is cut off for protruding section outer fringe forms the breach, later the bell shell is strikeed in the reverse direction, because steel wire retaining ring outer fringe is cut into the breach at this moment, consequently can be easily with star cover from the separation of dabber, when the serious needs of change of drive shaft wearing and tearing, the dismantlement of the star cover of being convenient for.
The invention is further configured to: and a closing-in oblique angle is formed at one end of the inner wheel of the star-shaped sleeve, which is used for the mandrel to extend into.
Through adopting above-mentioned technical scheme, like this when installing the steel wire retaining ring, earlier overlap the steel wire retaining ring in the second annular of dabber, later establish star ways at the spindle, and close up the oblique angle and at first contradict with the outer fringe of steel wire retaining ring and tighten up to the centre, because the inclination at close up oblique angle is great, can play certain binding off guide effect to the steel wire retaining ring for the steel wire retaining ring can follow close up oblique angle and star cover inner wall cunning and move to first annular in, accomplish the installation of steel wire retaining ring.
The invention is further configured to: one end of the mandrel spline, which is far away from the star-shaped sleeve, is provided with a knocking baffle ring, and the distance between the knocking baffle ring and the second annular groove is smaller than the axial width of the inner wheel of the star-shaped sleeve.
Through adopting above-mentioned technical scheme, when needs are dismantled, downwards strike bell shell outer wall, make the inner star cut the protruding section of steel wire retaining ring, and the inner star can be along the dabber one end distance that slides downwards, and the inner star when sliding downwards with strike the fender ring butt, strike the fender ring and play limiting displacement, prevent that the inner star from excessively sliding, because the inner star is close to the terminal surface of bell shell for the right angle, if the inner star slides downwards and surpasss the steel wire retaining ring, then produce the dead problem of card easily when reversely strikeing to the inner star afterwards, consequently strike the fender ring through setting up, make the inner star butt when strikeing the fender ring, still can guarantee that the steel wire retaining ring is located the inner star.
The invention is further configured to: the protruding section is provided with threely, and three protruding section is located two tip and the middle part of steel wire retaining ring respectively, and the outer fringe of three protruding section all inlays and locates in the first annular.
Through adopting above-mentioned technical scheme, the outer fringe of three protrusion section is inlayed respectively and is established in the steel wire retainer ring inslot of star cover inner wall, realizes the three point joint of body to when needs pull down star cover from the dabber, the stress point of body only has three points, cuts the three stress point of the protrusion section of body more easily, and then changes to pull down the body, reduces the damage to the dabber.
The invention is further configured to: the steel wire retainer ring further comprises a stabilizing section connected between the adjacent protruding sections, and the outer diameter of the stabilizing section is smaller than the protruding sections and is embedded in the second annular groove.
Through adopting above-mentioned technical scheme, the centre of a circle that the stable section used steel wire retaining ring is the arc setting as the centre of a circle to the stable section inlays and establishes and be used for reducing rocking of body in the second annular at the second annular of dabber, guarantees driven stability.
The invention also provides a method for disassembling the driving shaft, which is convenient to disassemble and has the advantage of convenient disassembly.
The above object of the present invention is achieved by the following technical solutions:
a method for disassembling a driving shaft with convenient disassembly comprises the following steps,
step S1: selecting a hollow cylindrical sleeve as a tool, wherein the diameter of the sleeve is larger than that of a spline shaft connected with a bell-shaped shell;
step S2: supporting the mandrel on the ground in a vertical state, sleeving the sleeve on the spline shaft outside the bell-shaped shell, enabling the end part of the sleeve to abut against the outer wall of the bell-shaped shell, knocking the sleeve from top to bottom, enabling the sleeve to apply force to the bell-shaped shell, pushing the star-shaped sleeve to slide downwards along the mandrel by the bell-shaped shell, shearing a protruding section extending into the second ring groove at the same time, shearing the protruding section under the shearing force from the edge of the second ring groove and the edge of the first ring groove to form a notch, and sliding the star-shaped sleeve downwards until the star-shaped sleeve abuts against the knocking retaining ring;
step S3: the driving shaft is turned over until the mandrel faces upwards and the bell-shaped shell faces downwards, the driving shaft is slightly knocked towards the large end face of the bell-shaped shell in the direction away from the mandrel, and at the moment, the outer edge of the protruding section of the steel wire retainer ring is cut into a notch, so that the star-shaped sleeve can be easily knocked down;
step S4: and taking down the damaged steel wire retainer ring and replacing the steel wire retainer ring.
By adopting the technical scheme, when the star-shaped sleeve slides along the mandrel, the hardness of the star-shaped sleeve is high, the quenching areas of the star-shaped sleeve and the mandrel extrude and shear the steel wire retainer ring, so that the part of the protruding section of the steel wire retainer ring extending into the first annular groove is sheared to form a notch, and when the star-shaped sleeve is pushed reversely, the blocking effect of the protruding section of the steel wire retainer ring on the star-shaped sleeve can be reduced, and the star-shaped sleeve can be knocked down more easily; after the installation is accomplished and when using, the steel wire retaining ring can realize being connected of star cover and dabber to can bear great pull-out strength, can prevent effectively that the star cover from droing from the dabber.
The invention is further configured to: and in the step S3, the sleeve is sleeved on the mandrel before knocking, and force is applied to the sleeve during knocking.
Through adopting above-mentioned technical scheme, establish the sleeve through the cover on the dabber, strike on the sleeve during the application of force, later with power transmission to the star sheathe in again, can reduce the direct application of force to the star, reduce the surface damage of star or bell shell to make the power of transmitting the star more even through the sleeve.
In conclusion, the beneficial technical effects of the invention are as follows:
1. when the star-shaped sleeve needs to be disassembled, the outer wall of the bell-shaped shell is knocked downwards, so that the star-shaped sleeve shears the protruding section of the steel wire check ring, the star-shaped sleeve can slide downwards along the mandrel for a distance of one end, the star-shaped sleeve is abutted to the knocking check ring when sliding downwards, the knocking check ring has a limiting effect, the star-shaped sleeve is prevented from sliding excessively, and the end face, close to the bell-shaped shell, of the star-shaped sleeve is a right angle, so that if the star-shaped sleeve slides downwards and exceeds the steel wire check ring, the problem of blocking is easily caused when the star-shaped sleeve is knocked reversely, and therefore the steel wire check ring can still be ensured to be positioned in the star-shaped sleeve;
2. when the star-shaped sleeve slides along the mandrel, the hardness of the star-shaped sleeve is high, the quenching areas of the star-shaped sleeve and the mandrel extrude and shear the steel wire retainer ring, so that the part of the protruding section of the steel wire retainer ring, which extends into the first annular groove, is sheared to form a notch, therefore, when the star-shaped sleeve is pushed reversely, the blocking effect of the protruding section of the steel wire retainer ring on the star-shaped sleeve can be reduced, and the star-shaped sleeve can be knocked down more easily; after the installation is finished and when the star-shaped sleeve is used, the steel wire retainer ring can realize the connection between the star-shaped sleeve and the mandrel, can bear higher drawing strength and can effectively prevent the star-shaped sleeve from falling off from the mandrel;
3. the sleeve is sleeved on the mandrel, the sleeve is knocked during force application, and then the force is transmitted to the star-shaped sleeve, so that the direct force application to the star-shaped sleeve can be reduced, the surface damage of the star-shaped sleeve or the bell-shaped shell is reduced, and the force transmitted to the star-shaped sleeve is more uniform through the sleeve;
4. the stable section is the arc setting to can cooperate completely with the second ring groove, the stable section is the wave setting along the axial of steel wire retaining ring, makes the axial width increase of stable section, and then can fill the second ring groove completely, can play the effect of eliminating universal joint and dabber axial float clearance, reduce vibration, the noise of drive shaft, improve drive shaft life.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the mandrel of the present invention.
Fig. 3 is a schematic view of the inner wheel of the spider of the present invention.
Fig. 4 is a schematic perspective view of the wire retainer ring of the present invention.
Fig. 5 is a schematic side view of the wire retainer ring of the present invention.
In the figure, 1, an outer bell; 2. a star-shaped sleeve; 3. a steel ball; 4. a mandrel; 5. a first ring groove; 6. a second ring groove; 7. a steel wire retainer ring; 8. a protruding section; 9. pre-chamfering; 10. closing in the bevel angle; 11. knocking the baffle ring; 12. a stabilization section; 13. wave crest.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1, the drive shaft structure convenient to disassemble disclosed by the invention comprises an outer shell 1, an inner star-shaped sleeve 2 arranged in the outer shell 1 and steel balls 3 arranged in the outer shell 1 and the inner star-shaped sleeve 2, wherein the center of the inner star-shaped sleeve 2 is an inner wheel, the inner wall of the inner wheel is connected with a mandrel 4 through a spline, a first annular groove 5 is formed in the inner wall of the inner star-shaped sleeve 2 along the circumference, a second annular groove 6 is formed in the outer wall of the mandrel 4 along the circumference, the second annular groove 6 is opposite to the first annular groove 5, a steel wire retaining ring 7 is embedded in the first annular groove 5 and the second annular groove 6, the steel wire retaining ring 7 comprises at least two protruding sections 8, after installation, the protruding sections 8 are embedded in the first annular groove 5, and two side walls of the first annular groove 5 are provided. The angle of the pre-release angle 9 is less than or equal to 20.75 degrees, so that the mandrel 4 is prevented from falling off under the normal use condition, the function of easy disassembly is realized, and the effect of preventing falling off is achieved. After the installation is finished, the protruding section 8 of the steel wire check ring 7 is embedded in the first annular groove 5, and other parts are embedded in the second annular groove 6, so that the steel wire check ring 7 can bear enough drawing strength and cannot fall off in the normal use process of the driving shaft; when needs are dismantled, through set up the angle 9 of taking off in advance of slope simultaneously in the both sides of first annular 5, can be through the mode of knocking the outer casing of bell housing 1, the part that stretches into second annular 6 of protruding section 8 of wire retainer ring 7 is cut through the interior wheel of star shell 2 for protruding section 8 outer fringe forms the breach, later reverse knocking bell housing 1, because wire retainer ring 7 outer fringe is cut into the breach at this moment, consequently can be easily with star shell 2 from the separation of dabber 4, when the serious needs of drive shaft wearing and tearing change, the dismantlement of star shell 2 of being convenient for. The angles of the two pre-slip angles 9 are 20 degrees; the traditional self-locking angle is 18 degrees, the design is 20 degrees, and multiple tests and practical use find that when the pre-release angle 9 is set to 20 degrees, the pre-release angle not only can bear enough tensile pulling strength, but also is more convenient to detach during knocking.
As shown in fig. 3, a closing-in bevel 10 is arranged at one end of the inner wheel of the star sleeve 2, into which the mandrel 4 extends, and the closing-in bevel 10 can be selected to be 30 degrees; like this when installation steel wire retainer ring 7, earlier overlap steel wire retainer ring 7 in the second annular groove 6 of dabber 4, later establish 2 covers of star cover on dabber 4, and close up oblique angle 10 at first contradicts with steel wire retainer ring 7's outer fringe and tightens up to the centre, because the inclination of close up oblique angle 10 is great, can play certain binding off guide effect to steel wire retainer ring 7, make steel wire retainer ring 7 can follow close up oblique angle 10 and 2 inner walls slips of star cover to first annular 5 in, accomplish steel wire retainer ring 7's installation.
As shown in fig. 2, one end of the spline of the mandrel 4, which is far away from the inner wheel of the inner wheel, is provided with a knocking stop ring 11, and the distance between the knocking stop ring 11 and the second annular groove 6 is smaller than the axial width of the inner wheel; when needs are dismantled, strike 1 outer wall of bell shell downwards, make the inner race 2 cut the protruding section 8 of steel wire retaining ring 7, and inner race 2 can be along the one end distance that slides down of dabber 4, and inner race 2 when sliding down with strike fender ring 11 butt, strike fender ring 11 and play limiting displacement, prevent that inner race 2 from excessively sliding, because the inner race 2 is close to the terminal surface of bell shell 1 and is the right angle, if inner race 2 slides down and surpasss steel wire retaining ring 7, then produce the dead problem of card easily when striking inner race 2 backward, consequently strike fender ring 11 through setting up, make inner race 2 butt when striking fender ring 11, still can guarantee that steel wire retaining ring 7 is located inner race 2.
In the actual quenching process of the mandrel 4, the integral hardness of the mandrel 4 is greatly improved, but the quenching close to the tail end part is incomplete, so that the hardness of the inner end of the first ring groove 5 is higher than that of the outer end, in the stage of shearing the steel wire retainer ring 7, the star-shaped sleeve 2 slides relative to the mandrel 4 by knocking the bell-shaped shell 1, at the moment, as the body of the steel wire retainer ring 7 is embedded in the first ring groove 5 and the three protruding sections 8 are embedded in the second ring groove 6, when the star-shaped sleeve 2 slides relative to the mandrel 4, the star-shaped sleeve 2 applies transverse shearing force to the steel wire retainer ring 7, so that the protruding sections 8 are sheared by the edges of the first ring groove 5 and the second ring groove 6, and as the stress end of the second ring groove 6 is subjected to quenching treatment with higher hardness, the damage to the mandrel 4 during shearing can be reduced, and a notch is formed by shearing the outer edge of the protruding sections 8 after shearing, so that, facilitating the subsequent removal of the inner race 2.
As shown in fig. 4, three protruding sections 8 are provided, the three protruding sections 8 are respectively located at two end portions and a middle portion of the steel wire retainer ring 7, and outer edges of the three protruding sections 8 are all embedded in the first ring groove 5; the outer fringe of three protrusion section 8 inlays respectively and establishes 7 inslots at the steel wire retaining ring of 2 inner walls of star cover, realizes the three point joint of body to when needs pull down star cover 2 from dabber 4, the stress point of body only three points, cut the three stress point of the protrusion section 8 of body more easily, and then change and pull down the body, reduce the damage to dabber 4.
As shown in fig. 4, the wire retainer 7 further includes a stabilizing section 12 connected between adjacent protruding sections 8, the diameter of the stabilizing section 12 is smaller than that of the protruding section 8, and the stabilizing section 12 is embedded in the second annular groove 6; the stable section 12 is arc-shaped and is arranged by taking the circle center of the steel wire retainer ring 7 as the circle center, and the stable section 12 is embedded in the second annular groove 6 of the mandrel 4 and is used for reducing the shaking of the body in the second annular groove 6, so that the transmission stability is ensured.
As shown in fig. 4 and 5, the stabilizing sections 12 are arranged in an arc shape along the radial direction of the wire retainer 7 and in a wave shape along the axial direction of the wire retainer 7; the stable section 12 is the arc setting to can cooperate completely with second ring groove 6, stable section 12 is the wave setting along the axial of steel wire retainer ring 7, makes the axial width increase of stable section 12, and then can fill second ring groove 6 completely, can play the effect of eliminating universal joint and 4 axial float clearances of dabber, reduces vibration, the noise of drive shaft, improves drive shaft life.
As shown in fig. 4 and 5, the stabilizing section 12 is bent along the axial direction of the wire retainer 7 to form 2-3 wave crests 13, and two ends of the wave crests 13 are respectively abutted against the side walls of the grooves of the wire retainer 7; the high point and the low point of the wave crest 13 are respectively abutted against the inner walls of the two sides of the second annular groove 6, so that the shaking of the stabilizing section 12 in the second annular groove 6 is reduced, 2-3 effects are set to be optimal, and the stable supporting performance is most stable.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Example two:
the invention discloses a method for disassembling a driving shaft convenient to disassemble, which comprises the following steps of S1: a hollow cylindrical sleeve is selected as a tool, and the diameter of the sleeve is larger than that of a spline shaft connected with the outer shell of the outer shell 1.
Step S2: support dabber 4 in ground in vertical state, cup joint the sleeve on the integral key shaft of 1 outside of bell shell, and sleeve tip butt in 1 outer wall of bell shell, strike the sleeve from top to bottom, make the sleeve to 1 even application of force of bell shell, bell shell 1 promotes that star cover 2 slides down along dabber 4, cut the bulge section 8 of stretching into second annular groove 6 simultaneously, bulge section 8 is sheared under the shear force that comes from 6 borders of second annular groove and 5 borders of first annular groove and is formed the breach, star cover 2 slides down until the butt in knocking retainer ring 11.
Step S3: turn over the drive shaft until dabber 4 up and bell shell 1 down, towards the direction that deviates from dabber 4 and strike bell shell 1, cup joint the sleeve in dabber 4 before striking, to the sleeve application of force during striking, because the outer border of 7 protruding sections of wire retainer ring is cut into the breach this moment, consequently can be with the light knocking down of star cover 2.
Step S4: the damaged wire retainer 7 is removed and replaced.
Because the mandrel 4 is positioned on one side, away from the outer shell 1, of the second annular groove 6 and is subjected to quenching treatment, the hardness of the mandrel 4 is high, when the inner sleeve 2 slides along the mandrel 4, the hardness of the inner sleeve 2 is high, the inner sleeve 2 and the quenching area of the mandrel 4 extrude and shear the steel wire retainer ring 7, and therefore the part, extending into the first annular groove 5, of the protruding section 8 of the steel wire retainer ring 7 is sheared to form a notch, when the inner sleeve 2 is pushed reversely, the blocking effect of the protruding section 8 of the steel wire retainer ring 7 on the inner sleeve 2 can be reduced, and the inner sleeve 2 can be knocked down more easily; after the installation is accomplished and when using, the connection of star cover 2 and dabber 4 can be realized to steel wire retaining ring 7 to can bear great pull-out strength, can prevent effectively that star cover 2 from droing from dabber 4.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (4)
1. The utility model provides a convenient drive shaft of dismantling which characterized in that: the steel wire ring comprises a bell-shaped shell (1), a star-shaped sleeve (2) arranged in the bell-shaped shell (1) and steel balls (3) arranged in the bell-shaped shell (1) and the star-shaped sleeve (2), wherein the center of the star-shaped sleeve (2) is connected with a mandrel (4) through a spline, a first ring groove (5) is formed in the inner wall of the star-shaped sleeve (2) along the circumference, a second ring groove (6) is formed in the outer wall of the mandrel (4) along the circumference, a steel wire retainer ring (7) is embedded in the first ring groove (5) and the second ring groove (6), the steel wire retainer ring (7) comprises at least two protruding sections (8), the protruding sections (8) are embedded in the first ring groove (5), and two side walls of the first ring groove (5) are respectively provided with an; a knocking baffle ring (11) is arranged at one end, deviating from the star-shaped sleeve (2), of the spline of the mandrel (4), and the distance between the knocking baffle ring (11) and the second ring groove (6) is smaller than the axial width of an inner wheel of the star-shaped sleeve (2); the three protruding sections (8) are arranged, the three protruding sections (8) are respectively positioned at the two end parts and the middle part of the steel wire retainer ring (7), and the outer edges of the three protruding sections (8) are embedded in the first annular groove (5); the steel wire retainer ring (7) further comprises a stabilizing section (12) connected between the adjacent protruding sections (8), and the outer diameter of the stabilizing section (12) is smaller than that of the protruding sections (8) and is embedded in the second annular groove (6); quenching the part of the mandrel (4) which is positioned on one side of the second annular groove (6) away from the outer shell (1); the stabilizing section (12) is bent along the axial direction of the steel wire retainer ring (7) to form 2-3 wave crests (13), and two ends of each wave crest (13) are respectively abutted to the side wall of the second annular groove (6).
2. A drive shaft for facilitating disassembly as claimed in claim 1, wherein: and a closing-in bevel (10) is arranged at one end of the inner wheel of the star-shaped sleeve (2) for the mandrel (4) to extend into.
3. A method of disassembling a drive shaft for facilitating disassembly as claimed in any one of claims 1 to 2, wherein: comprises the following steps of (a) carrying out,
step S1: selecting a hollow cylindrical sleeve as a tool, wherein the diameter of the sleeve is larger than that of a spline shaft connected with the outer shell of the bell-shaped shell (1);
step S2: the mandrel (4) is supported on the ground in a vertical state, the sleeve is sleeved on the spline shaft outside the bell-shaped shell (1), the end part of the sleeve abuts against the outer wall of the bell-shaped shell (1), the sleeve is knocked from top to bottom, force is applied to the bell-shaped shell (1) by the sleeve, the bell-shaped shell (1) pushes the star-shaped sleeve (2) to slide downwards along the mandrel (4), meanwhile, a protruding section (8) extending into the second annular groove (6) is sheared, the protruding section (8) is sheared to form a notch under shearing force from the edge of the second annular groove (6) and the edge of the first annular groove (5), and the star-shaped sleeve (2) slides downwards until abutting against the knocking retaining ring (11);
step S3: the driving shaft is overturned until the mandrel (4) faces upwards and the bell-shaped shell (1) faces downwards, the driving shaft is slightly knocked towards the large end face of the bell-shaped shell (1) in the direction deviating from the mandrel (4), and at the moment, the outer edge of the protruding section (8) of the steel wire retainer ring (7) is cut into a notch, so that the star-shaped sleeve (2) can be easily knocked down;
step S4: and taking down the damaged steel wire retainer ring (7) and replacing.
4. A method of disassembling a drive shaft according to claim 3, wherein: in the step S3, the sleeve is sleeved on the mandrel (4) before knocking, and force is applied to the sleeve during knocking.
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| CN201910943298.2A CN110714989B (en) | 2019-09-30 | 2019-09-30 | Driving shaft convenient to disassemble and disassembling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910943298.2A CN110714989B (en) | 2019-09-30 | 2019-09-30 | Driving shaft convenient to disassemble and disassembling method thereof |
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| CN110714989A CN110714989A (en) | 2020-01-21 |
| CN110714989B true CN110714989B (en) | 2020-12-08 |
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| CN103573771A (en) * | 2012-07-23 | 2014-02-12 | 通用汽车环球科技运作有限责任公司 | Snap ring |
| CN206972787U (en) * | 2017-07-19 | 2018-02-06 | 浙江春风动力股份有限公司 | A kind of spline Sliding Structures constant velocity cardan joint |
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