CN109236877B - Automobile transmission shaft assembly - Google Patents
Automobile transmission shaft assembly Download PDFInfo
- Publication number
- CN109236877B CN109236877B CN201810984207.5A CN201810984207A CN109236877B CN 109236877 B CN109236877 B CN 109236877B CN 201810984207 A CN201810984207 A CN 201810984207A CN 109236877 B CN109236877 B CN 109236877B
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- lip
- dust
- universal joint
- spring mounting
- mounting groove
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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
- F16D3/223—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 guided in grooves in both coupling parts
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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
- F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
- F16D3/841—Open covers, e.g. guards for agricultural p.t.o. shafts
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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
- F16D3/223—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 guided in grooves in both coupling parts
- F16D2003/22323—Attachments to the shaft of the inner joint member whereby the attachments are distanced from the core
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The invention provides an automobile transmission shaft assembly which comprises a tripod type universal joint, a ball cage type universal joint, an input shaft, an output shaft and a transmission shaft, wherein the tripod type universal joint and the ball cage type universal joint are connected to two ends of the transmission shaft, the input shaft and the output shaft are respectively connected to the tripod type universal joint and the ball cage type universal joint, a first dust cover and a second dust cover are respectively arranged on the tripod type universal joint and the ball cage type universal joint, the ball cage type universal joint is provided with a ball-shaped shell, and the spherical surface of the ball-shaped shell is connected with a connecting part at the lower end of the second dust cover. According to the automobile transmission shaft assembly provided by the invention, as the spherical shell of the rzeppa universal joint and the connecting part at the lower end of the second dust cover can move relatively, the fatigue damage of the second dust cover can be reduced, and the dust scraping device is arranged at the lower part of the connecting part, so that the dust prevention effect of the second dust cover is further improved.
Description
Technical Field
The invention relates to an automobile transmission shaft assembly, in particular to an automobile transmission shaft assembly.
Background
The automobile transmission shaft assembly is a collection of related parts of various transmission shafts, can realize power transmission and is an important component in an automobile overall system.
Published patent CN201520279878.3 discloses a take buffer structure's automobile transmission shaft assembly, including tripod universal joint, rzeppa universal joint, input shaft, output shaft and transmission shaft, tripod universal joint and rzeppa universal joint are connected in the transmission shaft both ends, input shaft and output shaft are connected respectively on tripod universal joint and rzeppa universal joint, be equipped with first dust cover and second dust cover on tripod universal joint and the rzeppa universal joint respectively, all are equipped with the collar at the both ends of dust cover, strengthen the steadiness of dust cover installation. However, since the birfield universal joint is a machine member for realizing variable-angle power transmission, and an angle exists between the transmission shaft and the output shaft, after long-term use, the wrinkle part of the second dust cover is easily subjected to fatigue damage, so that the dust-proof function of the second dust cover fails.
In conclusion, how to reduce the damage and failure of the second dust cover and prolong the service life of the second dust cover is a problem which needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide an automobile transmission shaft assembly, and overcomes the defects that a second dust cover is repeatedly deformed due to an angle between a transmission shaft and an output shaft in the driving process of a vehicle, and after the automobile transmission shaft assembly is used for a long time, a wrinkle part of the second dust cover is easily subjected to fatigue damage, so that the dust-proof function of the second dust cover is disabled.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides an automobile transmission shaft assembly, includes tripod universal joint, rzeppa universal joint, input shaft, output shaft and transmission shaft, tripod universal joint with the rzeppa universal joint connect in the both ends of transmission shaft, the input shaft with the output shaft connect respectively in tripod universal joint with on the rzeppa universal joint, tripod universal joint with be equipped with first dust cover and second dust cover on the rzeppa universal joint respectively, the rzeppa universal joint has the ball-type casing, the spherical surface of ball-type casing with the connecting portion of second dust cover lower extreme are connected.
Further, be equipped with a plurality of spring mounting groove on the periphery of connecting portion, the last spring ring of installing the fastening action of spring mounting groove, the spring ring will connecting portion connect on the spherical surface, just the internal surface of connecting portion with spherical surface looks adaptation, and the internal surface of connecting portion with spherical surface clearance fit.
Still further, still include self-lubricating friction ring, self-lubricating friction ring sets up between the internal surface of connecting portion and the spherical surface.
Further, self-lubricating friction ring has bar boss and annular boss, the bar boss sets up on the internal surface of self-lubricating friction ring upper end, the bar boss with spacing groove sliding fit that is equipped with on the spherical surface, annular boss sets up on the surface of self-lubricating friction ring lower extreme, annular boss block is in interior annular groove on the internal surface of connecting portion lower extreme.
Furthermore, the dust scraping device is provided with an arc-shaped ring portion, an annular counter bore, a fourth spring mounting groove and a third spring mounting groove, the arc-shaped ring portion is clamped in the outer annular groove in the periphery of the lower portion of the connecting portion, the annular counter bore is sleeved on the connecting flange in the periphery of the lower portion of the connecting portion, the counter bore bottom surface of the annular counter bore abuts against the lower end surface of the connecting portion and the lower end surface of the self-lubricating friction ring, the fourth spring mounting groove is arranged in the periphery of the lower portion of the dust scraping device, the third spring mounting groove is arranged in the periphery of the upper portion of the dust scraping device, a third spring ring is arranged in the third spring mounting groove, and a fourth spring ring is arranged in the fourth spring mounting groove.
Furthermore, scrape dirt device still has first scrape dirt lip and second and scrape the dirt lip, first scrape the dirt lip with the second is scraped the dirt lip and is all set up scrape on the inner wall of the lower part of dirt device, first scrape the dirt lip and be located the below of dirt lip is scraped to the second, first scrape the dirt lip with the second is scraped the dirt lip and is all contradicted spherical on the surface, first scrape the dirt lip with the second is scraped and is equipped with first dirt groove between the dirt lip.
Furthermore, the first dust scraping lip is provided with a first shovel-shaped lip tip and a first scraping knife surface, the first shovel-shaped lip tip extends downwards along the axial direction of the dust scraping device, the lower end of the first scraping knife surface is connected to the first shovel-shaped lip tip, and the upper end of the first scraping knife surface is connected to the lower edge of the first dust containing groove.
Furthermore, the second scrapes the dirt lip and has second shovel form lip point and second and scrape the knife face, second shovel form lip point form in on the upper edge in first dirt holding groove, second shovel form lip point is followed scrape the axial downwardly extending of dirt device, the lower extreme that the second scraped the knife face is connected on the second shovel form lip point, the second is scraped the knife face and is followed the axial slope of scraping the dirt device upwards extends.
Further, scrape dirt device still has main lip and vice lip, main lip with vice lip all sets up on the inner wall on the upper portion of scraping dirt device, and all contradict spherical on the surface, main lip is located the below of vice lip, main lip with be equipped with the third between the vice lip and hold the dirt groove, main lip with the second is scraped and is equipped with the second between the dirt lip and holds the dirt groove.
Furthermore, the spring mounting groove comprises a first spring mounting groove and a second spring mounting groove, the first spring mounting groove and the second spring mounting groove are arranged at intervals, the second spring mounting groove is located below the first spring mounting groove, a first spring ring is arranged in the first spring mounting groove, and a second spring ring is arranged in the second spring mounting groove.
According to the technical scheme, the invention has the following beneficial effects:
1. in the prior art, the second dust cover is reinforced at the end of the rzeppa universal joint by adopting the binding ring, and the wrinkle part of the second dust cover is easy to cause fatigue damage after long-term use;
2. because the lower part of connecting portion is equipped with the dust scraper, and the dust scraper can strike off the adnexed dust of spherical surface along with connecting portion when spherical surface removes, prevents in the dust gets into the second dust cover, therefore can further improve the dustproof effect of second dust cover.
The invention is described in further detail below with reference to the figures and the detailed description.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view illustrating a structure in which the birfield type universal joint of the present invention is rotated by a certain angle.
Fig. 3 is an enlarged view of a portion a of fig. 1.
Fig. 4 is an enlarged view of a portion B of fig. 2.
Fig. 5 is a schematic structural view of a connecting portion at a lower end of a second dust cover according to the present invention.
Fig. 6 is a schematic structural view of the dust scraping device of the present invention.
Fig. 7 is a schematic structural view of a self-lubricating friction ring of the present invention.
Description of reference numerals: the ball-type universal joint 10, the ball-type housing 11, the limiting groove 11a, the circular truncated cone 11b, the spherical surface 11c, the second dust cover 20, the connecting portion 20A, the first spring mounting groove 21, the second spring mounting groove 22, the outer annular groove 23, the inner annular groove 24, the connecting flange 25, the self-lubricating friction ring 30, the bar-shaped boss 31, the annular boss 32, the inner surface 33, the dust scraping device 40, the first dust containing groove 40A, the second dust containing groove 40b, the third dust containing groove 40c, the first dust scraping lip 41, the first scraper lip tip 41a, the first scraper face 41b, the second dust scraping lip 42, the second scraper lip tip 42a, the second scraper face 42b, the main lip 43, the secondary lip 44, the fourth spring mounting groove 45, the third spring mounting groove 46, the arc-shaped ring portion 47, the annular counterbore 48, the bottom surface 481, the first spring ring 50, the second spring ring 60, the third spring ring 70, and the fourth spring ring 80.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Referring now to fig. 1 to 7 for further explanation of the present invention, an automotive propeller shaft assembly as shown in fig. 1 includes a tripod type joint, a ball type joint 10, an input shaft, an output shaft and a propeller shaft, the tripod type joint and the ball type joint 10 are coupled to both ends of the propeller shaft, the input shaft and the output shaft are coupled to the tripod type joint and the ball type joint 10, respectively, the tripod type joint and the ball type joint 10 are provided with a first dust cover and a second dust cover 20, respectively, the ball type joint 10 has a ball type housing 11, a spherical center of a spherical surface 11c of the ball type housing 11 coincides with a joint center of the ball type joint 10, a spherical surface 11c of the ball type housing 11 is coupled to a coupling portion 20A at a lower end of a second dust cover 20, when the automotive propeller shaft assembly is in operation, the coupling portion 20A at a lower end of the second dust cover 20 is axially moved relative to the spherical surface 11c of the ball type joint 10, the rzeppa universal joint 10 is a constant velocity universal joint, the transmission shaft and the output shaft have the same angular velocity, so that the upper end of the second dust cover 20 and the transmission shaft are fastened by a collar, the lower end of the second dust cover adopts the first spring ring 50, the second spring ring 60, the third spring ring 70, the fourth spring ring 80 and the strip-shaped boss 31 to be matched with the limiting groove 11a, the second dust cover 20 integrally rotates along with the transmission shaft in the transmission process, the second dust cover is prevented from being repeatedly deformed in the transmission process, the fatigue damage of the second dust cover 20 is reduced, the service life of the second dust cover 20 is prolonged, the specific turning direction and the moving direction refer to fig. 1 and fig. 2, the turning directions of the transmission shaft and the output shaft are shown by arrows in the drawings, and the direction of the axial movement of the connecting part 20A relative to the spherical surface.
As shown in fig. 1, 2, 3 and 5, a plurality of spring mounting grooves are formed in the periphery of the connecting portion 20A, spring rings with fastening function are mounted on the spring mounting grooves, the spring rings connect the connecting portion 20A to the spherical surface 11c, the inner surface of the connecting portion 20A is matched with the spherical surface 11c, the inner surface of the connecting portion 20A is movably matched with the spherical surface 11c, the spring rings are arranged to facilitate the matching connection between the second dust cover 20 and the ball-type universal joint 10, and compensate for the matching gap caused by wear, so as to prevent the second dust cover 20 and the ball-type universal joint 10 from being separated.
In this embodiment, the spring mounting groove includes first spring mounting groove 21 and second spring mounting groove 22, first spring mounting groove 21 and second spring mounting groove 22 set up at an interval, second spring mounting groove 22 is located the below of first spring mounting groove 21, be equipped with first spring coil 50 in the first spring mounting groove 21, be equipped with second spring coil 60 in the second spring mounting groove 22, wherein, the setting of first spring mounting groove 21 and first spring coil 50 is favorable to second dust cover 20 to tie on ball-type casing 11, second spring mounting groove 22 and second spring coil 60 set up in the biggest sphere diameter department of ball-type casing 11, be favorable to connecting portion 20A wholly to be tied on ball-type casing 11.
As shown in fig. 1, 2, 3, 4 and 7, a self-lubricating friction ring 30 is disposed between the inner surface of the connecting portion 20A and the spherical surface 11c, the outer surface of the self-lubricating friction ring 30 is bonded to the inner surface of the connecting portion 20A at the lower end of the second dust cover 20, and the self-lubricating friction ring 30 is disposed such that the connecting portion 20A at the lower end of the second dust cover 20 and the spherical housing 11 of the birfield type universal joint 10 have better lubricity for relative movement without adding lubricating oil, and bear friction loss generated by the relative movement, thereby being beneficial to prolonging the service life of the second dust cover 20, and facilitating contact between the inner surface 33 of the self-lubricating friction ring 30 and the spherical surface 11c, and simultaneously being beneficial to improving the dust-proof effect of the second dust cover 20.
In this embodiment, the self-lubricating friction ring 30 has the bar-shaped boss 31, the bar-shaped boss 31 is disposed on the inner surface of the upper end of the self-lubricating friction ring 30, the bar-shaped boss 31 is in sliding fit with the limiting groove 11a disposed on the spherical surface 11c, as shown in fig. 2, when the birfield universal joint 10 rotates by a certain angle, the bar-shaped boss 31 is always accommodated in the limiting groove 11a on the spherical shell 11 of the birfield universal joint 10, the setting of the bar-shaped boss 31 enables the second dust cover 20 to rotate synchronously with the birfield universal joint 10, thereby preventing the second dust cover 20 from twisting, and being beneficial to prolonging the service life of the second dust cover 20.
In this embodiment, self-lubricating friction ring 30 has annular boss 32, and annular boss 32 sets up on the surface of self-lubricating friction ring 30 lower extreme, and in the interior annular groove 24 of annular boss 32 block on the internal surface of connecting portion 20A lower extreme, the setting of annular boss 32 was favorable to self-lubricating friction ring 30's location, is convenient for connect reliably.
As shown in fig. 1 to 4 and 6, the dust scraper 40 of the present invention includes an arc ring 47, an annular counterbore 48, a fourth spring installation groove 45 and a third spring installation groove 46, the arc ring 47 is engaged in the outer annular groove 23 of the lower periphery of the connecting portion 20A, the annular counterbore 48 is sleeved on the connecting flange 25 of the lower periphery of the connecting portion 20A, a counterbore bottom surface 481 of the annular counterbore 48 abuts against the lower end surface of the connecting portion 20A and the lower end surface of the self-lubricating friction ring 30, the fourth spring installation groove 45 is disposed on the lower periphery of the dust scraper 40, the third spring installation groove 46 is disposed on the upper periphery of the dust scraper 40, a third spring ring 70 is disposed in the third spring installation groove 46, a fourth spring ring 80 is disposed in the fourth spring installation groove 45, the dust scraper 40 is disposed to further improve the dust-proof effect of the second dust guard 20, and is also disposed to facilitate the inner surface 33 of the self-lubricating friction ring 30 and the spherical surface 11c of the ball-type universal joint 10 Relative frictional movement of.
In this embodiment, the dust scraping device 40 further has a first dust scraping lip 41 and a second dust scraping lip 42, the first dust scraping lip 41 and the second dust scraping lip 42 are both disposed on an inner wall of a lower portion of the dust scraping device 40, the first dust scraping lip 41 is located below the second dust scraping lip 42, the first dust scraping lip 41 and the second dust scraping lip 42 both abut against the spherical surface 11c, a first dust containing groove 40a is disposed between the first dust scraping lip 41 and the second dust scraping lip 42, the first dust scraping lip 41 and the second dust scraping lip 42 are disposed to facilitate removal of dust attached to the spherical surface 11c of the spherical housing 11 of the ball-cage type universal joint 10, so as to prevent dust from accumulating into the interior of the second dust cover 20, and the first dust containing groove 40a is disposed to provide a containing cavity for dust passing over the first dust scraping lip 41, so as to prevent dust from further entering the interior of the second dust cover 20.
In this embodiment, the first dust scraping lip 41 has a first shovel lip tip 41a and a first scraping surface 41b, the first shovel lip tip 41a extends downward along the axial direction of the dust scraping device 40, the lower end of the first scraping surface 41b is connected to the first shovel lip tip 41a, the upper end of the first scraping surface 41b is connected to the lower edge of the first dust containing groove 40a, and the dust adhering to the spherical surface 11c is removed conveniently by the arrangement of the first scraping surface 41b attached to the spherical surface 11c and the arrangement of the first shovel lip tip 41a attached to the spherical surface 11 c.
In this embodiment, as shown in fig. 4, when the birfield universal joint 10 rotates by a certain angle, the front end portion of the first scraping surface 41b exceeds the spherical surface 11c and is located outside the circular truncated cone 11b, which is beneficial to completely scraping off dust attached to the spherical surface 11c, and the upper edge of the circular truncated cone 11b is matched with the first dust scraping lip 41, so that dust attached to the first dust scraping surface 41b can be prevented from passing through the first dust scraping lip 41 and entering the first dust containing groove 40 a.
In this embodiment, the second dust scraping lip 42 has a second shovellike lip tip 42a and a second scraping surface 42b, the second shovellike lip tip 42a is formed on the upper edge of the first dust containing groove 40a, the second shovellike lip tip 42a extends downward along the axial direction of the dust scraping device 40, the lower end of the second scraping surface 42b is connected to the second shovellike lip tip 42a, the second scraping surface 42b extends upward along the axial direction of the dust scraping device 40 in an inclined manner, and the second dust scraping lip 42 scrapes dust passing over the first dust scraping lip 41, so that the dust scraped by the first dust scraping lip 41 is stored in the first dust containing groove 40a, and the dust is prevented from further entering the inside of the second dust cover 20.
In this embodiment, the dust scraper 40 further has a main lip 43 and an auxiliary lip 44, the main lip 43 and the auxiliary lip 44 are both disposed on the inner wall of the upper portion of the dust scraper 40 and both abut against the spherical surface 11c, the main lip 43 is located below the auxiliary lip 44, a third dust containing groove 40c is disposed between the main lip 43 and the auxiliary lip 44, a second dust containing groove 40b is disposed between the main lip 43 and the second dust scraping lip 42, and the double sealing structure of the main lip 43 and the auxiliary lip 44 prevents dust from further entering the inside of the second dust cover 20, thereby improving the dust-proof performance of the dust scraper 40.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An automobile transmission shaft assembly, comprising a tripod type universal joint, a ball cage type universal joint (10), an input shaft, an output shaft and a transmission shaft, wherein the tripod type universal joint and the ball cage type universal joint (10) are connected with two ends of the transmission shaft, the input shaft and the output shaft are respectively connected with the tripod type universal joint and the ball cage type universal joint (10), the tripod type universal joint and the ball cage type universal joint (10) are respectively provided with a first dust cover and a second dust cover (20), the automobile transmission shaft assembly is characterized in that the ball cage type universal joint (10) is provided with a ball-shaped shell (11), a spherical surface (11c) of the ball-shaped shell (11) is connected with a connecting part (20A) at the lower end of the second dust cover (20), the periphery of the connecting part (20A) is provided with a plurality of spring mounting grooves, and the spring rings with fastening functions are mounted on the spring mounting grooves, the spring ring will connecting portion (20A) connect in on spherical surface (11c), just the internal surface of connecting portion (20A) with spherical surface (11c) looks adaptation, and the internal surface of connecting portion (20A) with spherical surface (11c) clearance fit, automobile transmission shaft assembly still includes self-lubricating friction ring (30), self-lubricating friction ring (30) set up connecting portion (20A) the internal surface with between spherical surface (11c), self-lubricating friction ring (30) have bar boss (31) and annular boss (32), bar boss (31) set up on the internal surface of self-lubricating friction ring (30) upper end, bar boss (31) with spacing groove (11a) sliding fit that is equipped with on spherical surface (11c), annular boss (32) set up on the surface of self-lubricating friction ring (30) lower extreme, the annular boss (32) is clamped in an inner annular groove (24) on the inner surface of the lower end of the connecting portion (20A), the automobile transmission shaft assembly further comprises a dust scraping device (40), the dust scraping device (40) is provided with an arc-shaped ring portion (47), an annular counter bore (48), a fourth spring mounting groove (45) and a third spring mounting groove (46), the arc-shaped ring portion (47) is clamped in an outer annular groove (23) on the periphery of the lower portion of the connecting portion (20A), the annular counter bore (48) is sleeved on a connecting flange (25) on the periphery of the lower portion of the connecting portion (20A), a counter bore bottom surface (481) of the annular counter bore (48) abuts against the lower end face of the connecting portion (20A) and the lower end face of the self-lubricating friction ring (30), the fourth spring mounting groove (45) is arranged on the periphery of the lower portion of the dust scraping device (40), the third spring mounting groove (46) is formed in the periphery of the upper portion of the dust scraping device (40), a third spring ring (70) is arranged in the third spring mounting groove (46), and a fourth spring ring (80) is arranged in the fourth spring mounting groove (45).
2. The vehicle transmission shaft assembly according to claim 1, wherein the dust scraping device (40) further comprises a first dust scraping lip (41) and a second dust scraping lip (42), the first dust scraping lip (41) and the second dust scraping lip (42) are both disposed on an inner wall of a lower portion of the dust scraping device (40), the first dust scraping lip (41) is located below the second dust scraping lip (42), the first dust scraping lip (41) and the second dust scraping lip (42) are both abutted against the spherical surface (11c), and a first dust containing groove (40a) is disposed between the first dust scraping lip (41) and the second dust scraping lip (42).
3. The vehicle drive shaft assembly according to claim 2, wherein the first dust scraping lip (41) has a first shovel lip tip (41a) and a first scraping surface (41b), the first shovel lip tip (41a) extends downward in the axial direction of the dust scraping device (40), a lower end of the first scraping surface (41b) is connected to the first shovel lip tip (41a), and an upper end of the first scraping surface (41b) is connected to a lower edge of the first dust containing groove (40 a).
4. The vehicle drive shaft assembly according to claim 2, wherein the second dust scraping lip (42) has a second spade lip tip (42a) and a second scraping surface (42b), the second spade lip tip (42a) being formed on an upper edge of the first dust containing groove (40a), the second spade lip tip (42a) extending downward in an axial direction of the dust scraping device (40), the second scraping surface (42b) having a lower end connected to the second spade lip tip (42a), the second scraping surface (42b) extending upward in an axial direction inclination of the dust scraping device (40).
5. The automotive drive shaft assembly of claim 2, wherein the dust scraper (40) further has a main lip (43) and an auxiliary lip (44), the main lip (43) and the auxiliary lip (44) are both disposed on an inner wall of an upper portion of the dust scraper (40) and both abut against the spherical surface (11c), the main lip (43) is located below the auxiliary lip (44), a third dust containing groove (40c) is disposed between the main lip (43) and the auxiliary lip (44), and a second dust containing groove (40b) is disposed between the main lip (43) and the second dust scraper lip (42).
6. The vehicle propeller shaft assembly of claim 1, wherein the spring mounting groove includes a first spring mounting groove (21) and a second spring mounting groove (22), the first spring mounting groove (21) and the second spring mounting groove (22) are spaced apart, the second spring mounting groove (22) is located below the first spring mounting groove (21), a first spring ring (50) is disposed in the first spring mounting groove (21), and a second spring ring (60) is disposed in the second spring mounting groove (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984207.5A CN109236877B (en) | 2018-08-28 | 2018-08-28 | Automobile transmission shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984207.5A CN109236877B (en) | 2018-08-28 | 2018-08-28 | Automobile transmission shaft assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109236877A CN109236877A (en) | 2019-01-18 |
| CN109236877B true CN109236877B (en) | 2020-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810984207.5A Active CN109236877B (en) | 2018-08-28 | 2018-08-28 | Automobile transmission shaft assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN109236877B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114104085B (en) * | 2021-11-25 | 2024-03-29 | 重汽(重庆)轻型汽车有限公司 | Dust cover structure of automobile steering transmission shaft |
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| CN102619891A (en) * | 2012-03-29 | 2012-08-01 | 南京冠盛汽配有限公司 | Single sphere drive shaft assembly for constant velocity universal joint |
| CN204592048U (en) * | 2015-05-04 | 2015-08-26 | 温州聚泉汽车部件有限公司 | The vehicle driving shaft assembly that a kind of braking is strong |
| CN205618465U (en) * | 2015-12-03 | 2016-10-05 | 湖北航天技术研究院特种车辆技术中心 | Oil cylinder |
| CN107524722A (en) * | 2017-09-30 | 2017-12-29 | 安徽江淮汽车集团股份有限公司 | A kind of universal joint assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4584090B2 (en) * | 2005-09-15 | 2010-11-17 | Ｎｔｎ株式会社 | Composite type constant velocity universal joint |
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2018
- 2018-08-28 CN CN201810984207.5A patent/CN109236877B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4610559A (en) * | 1985-04-12 | 1986-09-09 | Weasler Engineering, Inc. | Shield for universal joint |
| US5346431A (en) * | 1989-11-27 | 1994-09-13 | Nok Corporation | Sealing cover for coupling |
| CN102619891A (en) * | 2012-03-29 | 2012-08-01 | 南京冠盛汽配有限公司 | Single sphere drive shaft assembly for constant velocity universal joint |
| CN204592048U (en) * | 2015-05-04 | 2015-08-26 | 温州聚泉汽车部件有限公司 | The vehicle driving shaft assembly that a kind of braking is strong |
| CN205618465U (en) * | 2015-12-03 | 2016-10-05 | 湖北航天技术研究院特种车辆技术中心 | Oil cylinder |
| CN107524722A (en) * | 2017-09-30 | 2017-12-29 | 安徽江淮汽车集团股份有限公司 | A kind of universal joint assembly |
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| Publication number | Publication date |
|---|---|
| CN109236877A (en) | 2019-01-18 |
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Application publication date: 20190118 Assignee: Zhejiang Creative Park Culture Communication Co.,Ltd. Assignor: ZHEJIANG INDUSTRY & TRADE VACATIONAL College Contract record no.: X2021330000387 Denomination of invention: Automobile transmission shaft assembly Granted publication date: 20200320 License type: Common License Record date: 20211011 |
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