CN112248731A - Suspension swing arm assembly and automobile thereof - Google Patents
Suspension swing arm assembly and automobile thereof Download PDFInfo
- Publication number
- CN112248731A CN112248731A CN202010990435.0A CN202010990435A CN112248731A CN 112248731 A CN112248731 A CN 112248731A CN 202010990435 A CN202010990435 A CN 202010990435A CN 112248731 A CN112248731 A CN 112248731A
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- swing arm
- threaded cylinder
- arm shaft
- rubber layer
- groove
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- 239000000725 suspension Substances 0.000 title claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 239000000428 dust Substances 0.000 claims description 18
- 238000005452 bending Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 7
- 239000004519 grease Substances 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 abstract description 13
- 239000002184 metal Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 210000000245 forearm Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/006—Attaching arms to sprung or unsprung part of vehicle, characterised by comprising attachment means controlled by an external actuator, e.g. a fluid or electrical motor
Abstract
The invention relates to a suspension swing arm assembly and an automobile thereof, wherein the suspension swing arm assembly comprises a front arm, a rear arm, a swing arm shaft, a ball pin assembly, a front threaded cylinder, a rear threaded cylinder and a rubber layer; the rubber layer is vulcanized on the outer circular walls of the front threaded cylinder and the rear threaded cylinder, the rubber layer and the front threaded cylinder are pressed in the front arm together, and the rubber layer and the rear threaded cylinder are pressed in the rear arm together; one end of the swing arm shaft is connected with the front threaded cylinder, and the other end of the swing arm shaft is connected with the rear threaded cylinder; the bolt and nut secure the front arm, ball pin assembly, and rear arm together. According to the technical scheme, the outer trapezoidal threads of the swing arm shaft are connected with the inner trapezoidal threads of the front threaded cylinder and the rear threaded cylinder, when the swing arm rotates around the center line of the swing arm shaft, rotation and transmission are achieved through the connection of the trapezoidal threads, the swing arm is driven to move back and forth, and therefore the smoothness of the motion of the suspension and the operation stability of the whole vehicle are improved.
Description
Technical Field
The invention belongs to the technical field of automobile suspensions, and particularly relates to a suspension swing arm assembly and an automobile with the same.
Background
The outer side of the suspension swing arm is connected with a wheel assembly through a ball pin assembly, the inner side of the suspension swing arm is connected with a vehicle body (or a vehicle frame and an auxiliary frame) through a swing arm shaft, and the suspension swing arm is used as a guide and force transmission element of an automobile suspension system, so that various forces and moments borne by a tire are transmitted to the vehicle body, and meanwhile, the wheel is guaranteed to move according to a certain track.
The existing common suspension swing arm assembly generally comprises a ball pin assembly 01, a swing arm body 02 and a bushing 03, wherein the bushing 03 comprises a metal inner cylinder 031, a metal outer cylinder 032 and rubber 033 between the two, as shown in the prior art (CN 203110854U) shown in fig. 1, the three are vulcanized into a whole, then the bushing is pressed into the swing arm body 02, and the metal outer cylinder 032 and the swing arm body 02 are combined into a whole through interference fit. The metal inner cylinder of the bush is assembled with the swing arm shaft and cannot move back and forth in the axial direction of the swing arm shaft.
In order to improve the anti-nodding performance of the vehicle, the swing arm shaft of the upper swing arm is set to be high in the front and low in the back, and the lower swing arm is set to be high in the front and low in the back, so that the outer end of the swing arm moves up and down along with the up-and-down movement of the wheels during the movement of the vehicle, the inner end of the swing arm rotates around the swing arm shaft, the caster angle changes greatly, and as shown in fig. 2, the horizontal axis is the rotation angle of the swing arm, and the vertical axis. The change of the caster angle directly affects the returnability of the vehicle, and in order to ensure the motion performance of the vehicle, the motion of the swing arm needs to be improved.
Disclosure of Invention
The invention aims to provide a suspension swing arm assembly and an automobile thereof, which solve the problem that a bushing and a swing arm shaft cannot move back and forth in the axis direction of the swing arm shaft after being assembled and solve the problem that the swing arm can rotate by means of rubber deformation.
The invention is realized by the following technical scheme:
a suspension swing arm assembly and an automobile thereof comprise a front arm, a rear arm, a swing arm shaft, a ball pin component, a front threaded cylinder, a rear threaded cylinder and a rubber layer;
the inner end of the front arm is provided with two parallel side faces, the vertical side face is provided with a large hole, the rear side of the outer end is provided with a U-shaped groove A with a backward opening, the bottom surface of the U-shaped groove A is parallel to the two planes of the inner end, the front side of the outer end is provided with two circular bosses, the centers of the circular bosses are respectively provided with a bolt hole, the bolt holes penetrate through the bottom surface of the U-shaped groove A, and the section of a connecting section between the inner end and the outer end of the front arm is I-shaped;
the inner end of the rear arm is provided with two parallel side surfaces, the vertical side surface is provided with a large hole and two bolt holes which are symmetrical relative to the center of the large hole, the front side of the outer end is provided with a U-shaped groove B with a forward opening, the bottom surface of the U-shaped groove B is parallel to two planes of the inner end, the rear side of the outer end is provided with two circular bosses, the centers of the circular bosses are respectively provided with a bolt hole, the bolt holes penetrate through the bottom surface of the U-shaped groove B, the depth and the width of the U-shaped groove A and the U-shaped groove B are the same, and the section of a connecting section between the inner end and the outer end;
the two ends of the swing arm shaft are respectively provided with an external thread, a dust cover installation cylindrical surface and an annular table which are the same in structure and size, the front end of the swing arm shaft is provided with a positioning hole, the rear end of the swing arm shaft is provided with an L-shaped oil duct, and two bolt through holes are respectively formed in the inner side of the annular table;
an internal thread is arranged on the inner circular wall of the front threaded cylinder, a circle of limiting ring is arranged at the position, close to the rear end, of the outer circular wall of the front threaded cylinder, and the limiting ring is attached to the rubber layer; a circle of groove is arranged between the limiting ring and the rear end of the front threaded cylinder; a circle of clamp spring grooves are formed in the front end, close to the outer circular wall of the front threaded cylinder, and a threaded hole is formed in the front end of the front threaded cylinder;
the rear threaded cylinder is the same in structure and size as the front threaded cylinder 10, except that the rear end does not have a threaded hole;
an outward bending part is arranged at one end, close to the limiting ring, of the rubber layer, a circle of groove is arranged at the joint of the bending part and the rubber layer, and the depth of the groove is gradually reduced when the groove extends from the bending part to the other end of the rubber layer;
the ball pin assembly comprises a ball pin seat, a ball pin and the like, and two bolt through holes are formed in the ball pin seat;
the two rubber layers are vulcanized on the outer circular walls of the front threaded cylinder and the rear threaded cylinder respectively, one of the rubber layers and the front threaded cylinder are arranged in the front arm in a pressing mode, and the other rubber layer and the rear threaded cylinder are arranged in the rear arm in a pressing mode;
one end of the swing arm shaft is connected with the front threaded cylinder, and the other end of the swing arm shaft is connected with the rear threaded cylinder;
two bolts and two nuts secure the front arm, the ball pin assembly, and the rear arm together.
The internal threads on the inner circular walls of the front threaded cylinder and the rear threaded cylinder are left-handed internal trapezoidal threads.
The external threads on the two end parts of the swing arm shaft are left-handed outer trapezoidal threads, and the central lines of the two outer trapezoidal threads are collinear.
The inner trapezoidal thread and the outer trapezoidal thread are equal in nominal diameter, thread pitch and lead, a proper amount of lubricating grease is added in the front threaded cylinder and the rear threaded cylinder, the front end of the swing arm shaft is screwed into the front threaded cylinder, the rear end of the swing arm shaft is screwed into the rear threaded cylinder, and the inner trapezoidal thread and the outer trapezoidal thread form a trapezoidal thread pair which rotates and is in transmission connection.
The L-shaped oil passage is provided with a long axial section and a short radial section, the axial section and the radial section are both cylindrical, the central line of the axial section is collinear with the central line of the outer trapezoidal thread, the central lines of the axial section and the radial section are intersected at one point on the central line of the outer trapezoidal thread and are mutually perpendicular, the axial section reaches the rear end face of the swing arm shaft, and threads are arranged on the outer side of the radial section.
The dust cover is further included, one end of the dust cover is sleeved in the groove, and the other end of the dust cover is sleeved on the swing arm shaft.
The clamping spring is clamped in the clamping spring groove.
An automobile comprising a body, a wheel and a swing arm assembly connecting said body and said wheel, said swing arm assembly being as claimed in claims 1 to 7.
The invention has the beneficial effects that:
according to the technical scheme, the swing arm shaft is in threaded rotation and transmission connection with the front threaded cylinder and the rear threaded cylinder, when the swing arm rotates around the center line of the swing arm shaft, the front threaded cylinder and the rear threaded cylinder respectively rotate around the swing arm shaft along with the front arm and the rear arm through the trapezoidal thread pair, and the motion of the swing arm is not required to be met by rubber torsional deformation, so that the service life of the rubber layer is prolonged, the motion resistance of the swing arm is reduced, and the motion smoothness of the suspension and the comfort of the whole vehicle are improved. Importantly, the position of the swing arm is adjusted by utilizing the transmission function of the trapezoidal thread pair, the caster angle is reduced when the caster angle is increased, the caster angle is increased when the caster angle is reduced, the caster angle of the vehicle is kept basically unchanged, and the running stability of the vehicle is improved.
Drawings
FIG. 1 is a schematic diagram of a swing arm structure in the prior art;
FIG. 2 is a diagram showing the relationship between the rotation angle of the swing arm and the caster angle;
FIG. 3 is a schematic structural view of the present invention;
FIG. 4 is a left side view of FIG. 3;
FIG. 5 is an enlarged view at I of FIG. 3;
fig. 6 is a schematic diagram of the movement of the present invention.
Description of the reference numerals
01 ball round pin assembly, 02 swing arm body, 03 bush, 031 metal inner tube, 032 metal urceolus, 033 rubber, 1 forearm, 2 postbrachium, 3 rubber layers, 31 kink, 32 recess, 4 swing arm axle, 5 sealing bolt, 6 ball round pin subassemblies, 7 packing rings, 8 jump rings, 9 dust covers, 10 preceding screw thread drums, 101 interior trapezoidal screw thread, 102 spacing ring, 103 slot, 104 jump ring groove, 105 screw hole, 11 back screw thread drums, 41 outer trapezoidal screw thread, 42 dust cover installation cylinder face, 43 locating hole, 44 annular platform, 45L shape oil duct.
Detailed Description
The technical solutions of the present invention are described in detail below by examples, and the following examples are only exemplary and can be used only for explaining and explaining the technical solutions of the present invention, but not construed as limiting the technical solutions of the present invention.
The application provides a suspension swing arm assembly and an automobile thereof, as shown in fig. 3 to 6, comprising a front arm 1, a rear arm 2, a rubber layer 3, a swing arm shaft 4, a ball pin assembly 6, a front threaded cylinder 10, a rear threaded cylinder 11 and the like.
In the present application, the medial, lateral, anterior and posterior directions are shown in FIG. 3.
The inner end of the front arm 1 is provided with two parallel side surfaces, and the vertical side surface is provided with a big hole for installing the rubber layer 3; the rear side of the outer end is provided with a U-shaped groove A with a backward opening, the bottom surface of the U-shaped groove A is parallel to the two planes of the inner end, the front side of the outer end is provided with two circular bosses, the centers of the circular bosses are respectively provided with a bolt hole which penetrates through the bottom surface of the U-shaped groove A, and the bolt holes are used for fixing the ball pin assembly 6 and the rear arm 2; the connecting section between the inner end and the outer end is i-shaped in cross-section as shown in fig. 3 and 6.
The inner end of the rear arm 2 is provided with two parallel side surfaces, the vertical side surface is provided with a large hole and two bolt holes which are centrosymmetric relative to the large hole, the large hole is used for installing the rubber layer 3, and the two bolt holes are used for fixing the elastic element; the front side of the outer end is provided with a U-shaped groove B with a forward opening, the bottom surface of the U-shaped groove B is parallel to the two planes of the inner end, the rear side of the outer end is provided with two circular bosses, the centers of the circular bosses are respectively provided with a bolt hole which penetrates through the bottom surface of the U-shaped groove B, and the bolt holes are used for fixing the ball pin assembly 6 and the front arm 1; the section of the connecting section between the inner end and the outer end is I-shaped, and the depth and the width of the U-shaped groove A and the U-shaped groove B are the same, as shown in figures 3, 4 and 6.
The two ends of the swing arm shaft 4 are respectively provided with a left-handed outer trapezoidal thread 41, a dust cover installation cylindrical surface 42 and an annular table 44 which have the same structure and size, and the central lines of the outer trapezoidal threads at the front end and the rear end are collinear; the front end is provided with a positioning hole 43; the rear end of the L-shaped oil duct 45 is provided with a long axial section and a short radial end, the axial section and the radial section are both cylindrical, the center lines of the axial section and the radial section are intersected at one point and are mutually perpendicular, the axial section reaches the rear end face of the swing arm shaft 4, the center lines of the axial section and the outer trapezoidal thread center line are collinear, and the outer side of the radial section of the L-shaped oil duct 45 is provided with a thread for installing a sealing bolt 5; bosses are respectively arranged on the inner sides of the front annular platform and the rear annular platform 44, and bolt through holes are arranged in the middles of the bosses, as shown in fig. 3.
The inner circular wall of the front threaded cylinder 10 is provided with a left-handed inner trapezoidal thread 101; a circle of limiting ring 102 is arranged at the near rear end of the outer circular wall of the front threaded cylinder 10 and used for limiting the rubber layer, and the limiting ring 102 is attached to the rubber layer 3; a circle of groove 103 is arranged between the limiting ring 102 and the rear end of the front threaded cylinder 10, and the outer side of the dust cover 9 is arranged in the circle of groove 103; a circle of clamp spring grooves 104 are formed in the front end, close to the outer circular wall of the front threaded cylinder 10, and used for installing the gasket 7 and the clamp spring 8; the front end of the front threaded cylinder 10 has a threaded hole 105, as shown in fig. 3, 5, and 6.
The rear threaded cylinder 11 is identical in construction and size to the front threaded cylinder 10, except that the rear end has no threaded holes, as shown in fig. 3 and 6.
The rubber layer 3 is provided with an outward bending part 31 at one end close to the spacing ring 102, a circle of groove 32 is arranged at the joint of the bending part and the rubber layer, and the depth of the groove is gradually reduced when the bending part extends to the other end of the rubber layer.
The ball pin assembly 6 comprises a ball pin seat, a ball pin and the like, and two bolt through holes are formed in the ball pin seat.
The previous rubber layer 3 is vulcanized on the outer circular wall of the front threaded cylinder 10, and the front threaded cylinder 10 and the rubber layer 3 are pressed in the front arm 1 together; coating the sealant on the thread of the sealing bolt 5, screwing the sealing bolt into the threaded hole 105, and filling a certain amount of lubricating grease into the front threaded cylinder 10; the inner side of the dust cover 9 is sleeved on the dust cover installation cylindrical surface 42 of the swing arm shaft 4, the front end of the swing arm shaft 4 is screwed into the front threaded cylinder 10, and the outer side of the dust cover 9 is arranged in the ring groove 103; the washer 7 is placed in the clamp spring groove 104 and is fixed by the clamp spring 8, as shown in fig. 3 and 5.
Similarly, the latter rubber layer 3 is vulcanized on the outer circular wall of the rear threaded cylinder 11, and the rear threaded cylinder 11 and the rubber layer 3 are pressed together in the rear arm 2; a certain amount of lubricating grease is filled in the rear threaded cylinder 11; sleeving the inner side of the dust cover 9 on the dust cover installation cylindrical surface 42 of the swing arm shaft 4, screwing the rear end of the swing arm shaft 4 into the rear threaded cylinder 11, and then installing the outer side of the dust cover 9 in the ring groove 103; placing the gasket 7 into the clamp spring groove 104, and installing the clamp spring 8 for fixing; the thread of the seal bolt 5 is coated with the sealant and then screwed into the radial section of the L-shaped oil passage 45, as shown in fig. 3.
The nominal diameter, the thread pitch and the lead of the inner trapezoidal thread 101 and the outer trapezoidal thread 41 are equal, after the front end of the swing arm shaft 4 is screwed into the front threaded cylinder 10, the inner trapezoidal thread 101 of the front threaded cylinder 10 and the outer trapezoidal thread 41 at the front end of the swing arm shaft 4 form a trapezoidal thread pair, and similarly, the inner trapezoidal thread of the inner threaded cylinder 11 and the outer trapezoidal thread at the rear end of the swing arm shaft 4 form a trapezoidal thread pair, as shown in fig. 3 and 5.
Two sides of a ball pin seat of the ball pin assembly 6 are respectively inserted into a U-shaped groove A of the front arm 1 and a U-shaped groove B of the rear arm 2, two bolts respectively penetrate through two bolt through holes of the rear arm 2, the ball pin seat and the front arm 1, and then the front arm, the ball pin assembly and the rear arm are fixed together by screwing down nuts, so that the assembly of the technical scheme is completed.
The swing arm shaft 4 is fixed on the vehicle body or the auxiliary frame by bolts, and the ball pin assembly 6 is fixed on the wheel rim, so that the installation of the technical scheme on the whole vehicle is completed.
The working principle of the technical scheme is as follows:
when the swing arm shaft rotates around the centers of the front threaded cylinder 10 and the rear threaded cylinder 11, the trapezoidal threads between the swing arm shaft 4 and the front threaded cylinder 10 and between the swing arm shaft 4 and the rear threaded cylinder 11 rotate relatively, and relative rotation movement is completed without deformation of the rubber layer 3, so that the service life of the bushing is prolonged, and the smoothness of suspension movement and the comfort of the whole vehicle are improved.
In order to improve the anti-nodding performance of the vehicle, the swing arm shaft of the upper swing arm needs to be set to be high in the front and low in the rear, and the lower swing arm needs to be set to be high in the front and low in the rear, so that the rear inclination angle is greatly changed during the movement of the vehicle, and the whole vehicle performance is influenced.
In the vehicle driving process, along with the change of wheel atress, ball round pin subassembly 6 of this application is along with wheel up-and-down motion, and preceding screw thread drum 10 and back screw thread drum 11 are passed through the trapezoidal screw pair along with forearm 1 and postbrachium 2 respectively and are rotated around swing arm axle 4. Meanwhile, as the rotation angle of the front arm 1 and the rear arm 2 is increased, the caster angle is also increased (as shown in fig. 6), because the left-handed trapezoidal thread pair is provided in the application, when the rotation angle of the suspension swing arm assembly is larger than 0 degree when the wheel jumps up, and the outer ends (the joints with the ball pin components) of the front arm 1 and the rear arm 2 move upwards together, due to the transmission function of the trapezoidal thread pair, the front thread cylinder 10 and the rear thread cylinder 11 move forwards along the axis of the swing arm shaft 4, and the front arm 1 and the rear arm 2 move forwards together, i.e. the suspension swing arm assembly moves forwards and reduces the caster angle, on the contrary, when the rotation angle of the suspension swing arm assembly is smaller than 0 degree when the wheel falls down, and the outer ends of the front arm 1 and the rear arm 2 move downwards together, due to the transmission function of the trapezoidal thread, the front thread cylinder 10 and the rear thread cylinder 11 move backwards along the axis of the swing arm shaft 4, and the front arm, namely, the suspension swing arm assembly moves backwards, the small caster angle is increased, the caster angle change in the running process of the vehicle is small or even unchanged, the aligning moment of the wheels is kept unchanged, and the running stability of the vehicle is improved.
The foregoing is merely a description of the preferred embodiments of the present invention and it should be noted that there are objectively infinite specific structures due to the limited nature of the written expressions and that several modifications and refinements can be made by those skilled in the art without departing from the principle of the present invention and these modifications and refinements should be considered as the protection scope of the present invention.
Claims (8)
1. The utility model provides a suspension swing arm assembly and car which characterized in that: comprises a front arm, a rear arm, a swing arm shaft, a ball pin assembly, a front threaded cylinder, a rear threaded cylinder and a rubber layer;
the inner end of the front arm is provided with two parallel side faces, the vertical side face is provided with a large hole, the rear side of the outer end is provided with a U-shaped groove A with a backward opening, the bottom surface of the U-shaped groove A is parallel to the two planes of the inner end, the front side of the outer end is provided with two circular bosses, the centers of the circular bosses are respectively provided with a bolt hole, the bolt holes penetrate through the bottom surface of the U-shaped groove A, and the section of a connecting section between the inner end and the outer end of the front arm is I-shaped;
the inner end of the rear arm is provided with two parallel side surfaces, the vertical side surface is provided with a large hole and two bolt holes which are symmetrical relative to the center of the large hole, the front side of the outer end is provided with a U-shaped groove B with a forward opening, the bottom surface of the U-shaped groove B is parallel to two planes of the inner end, the rear side of the outer end is provided with two circular bosses, the centers of the circular bosses are respectively provided with a bolt hole, the bolt holes penetrate through the bottom surface of the U-shaped groove B, the depth and the width of the U-shaped groove A and the U-shaped groove B are the same, and the section of a connecting section between the inner end and the outer end;
the two ends of the swing arm shaft are respectively provided with an external thread, a dust cover installation cylindrical surface and an annular table which are the same in structure and size, the front end of the swing arm shaft is provided with a positioning hole, the rear end of the swing arm shaft is provided with an L-shaped oil duct, and two bolt through holes are respectively formed in the inner side of the annular table;
an internal thread is arranged on the inner circular wall of the front threaded cylinder, a circle of limiting ring is arranged at the position, close to the rear end, of the outer circular wall of the front threaded cylinder, and the limiting ring is attached to the rubber layer; a circle of groove is arranged between the limiting ring and the rear end of the front threaded cylinder; a circle of clamp spring grooves are formed in the front end, close to the outer circular wall of the front threaded cylinder, and a threaded hole is formed in the front end of the front threaded cylinder;
the rear threaded cylinder is the same in structure and size as the front threaded cylinder 10, except that the rear end does not have a threaded hole;
an outward bending part is arranged at one end, close to the limiting ring, of the rubber layer, a circle of groove is arranged at the joint of the bending part and the rubber layer, and the depth of the groove is gradually reduced when the groove extends from the bending part to the other end of the rubber layer;
the ball pin assembly comprises a ball pin seat, a ball pin and the like, and two bolt through holes are formed in the ball pin seat;
the two rubber layers are vulcanized on the outer circular walls of the front threaded cylinder and the rear threaded cylinder respectively, one of the rubber layers and the front threaded cylinder are arranged in the front arm in a pressing mode, and the other rubber layer and the rear threaded cylinder are arranged in the rear arm in a pressing mode;
one end of the swing arm shaft is connected with the front threaded cylinder, and the other end of the swing arm shaft is connected with the rear threaded cylinder;
two bolts and two nuts secure the front arm, the ball pin assembly, and the rear arm together.
2. The suspension swing arm assembly of claim 1 wherein: the internal threads on the inner circular walls of the front threaded cylinder and the rear threaded cylinder are left-handed internal trapezoidal threads.
3. The suspension swing arm assembly of claim 1 wherein: the external threads on the two end parts of the swing arm shaft are left-handed outer trapezoidal threads, and the central lines of the two outer trapezoidal threads are collinear.
4. The suspension swing arm assembly of claim 1 wherein: the inner trapezoidal thread and the outer trapezoidal thread are equal in nominal diameter, thread pitch and lead, a proper amount of lubricating grease is added in the front threaded cylinder and the rear threaded cylinder, the front end of the swing arm shaft is screwed into the front threaded cylinder, the rear end of the swing arm shaft is screwed into the rear threaded cylinder, and the inner trapezoidal thread and the outer trapezoidal thread form a trapezoidal thread pair which rotates and is in transmission connection.
5. The suspension swing arm assembly of claim 1 wherein: the L-shaped oil passage is provided with a long axial section and a short radial section, the axial section and the radial section are both cylindrical, the central line of the axial section is collinear with the central line of the outer trapezoidal thread, the central lines of the axial section and the radial section are intersected at one point on the central line of the outer trapezoidal thread and are mutually perpendicular, the axial section reaches the rear end face of the swing arm shaft, and threads are arranged on the outer side of the radial section.
6. The suspension swing arm assembly of claim 1 wherein: the dust cover is further included, one end of the dust cover is sleeved in the groove, and the other end of the dust cover is sleeved on the swing arm shaft.
7. The suspension swing arm assembly of claim 1 wherein: the clamping spring is clamped in the clamping spring groove.
8. An automobile comprising a body, a wheel and a swing arm assembly connecting said body and said wheel, wherein said swing arm assembly is the swing arm assembly of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010990435.0A CN112248731A (en) | 2020-09-19 | 2020-09-19 | Suspension swing arm assembly and automobile thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010990435.0A CN112248731A (en) | 2020-09-19 | 2020-09-19 | Suspension swing arm assembly and automobile thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112248731A true CN112248731A (en) | 2021-01-22 |
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ID=74231515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010990435.0A Pending CN112248731A (en) | 2020-09-19 | 2020-09-19 | Suspension swing arm assembly and automobile thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112248731A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5022673A (en) * | 1989-02-03 | 1991-06-11 | Honda Giken Kogyo Kabushiki Kaisha | Wheel suspension system for automobiles |
| CN106476553A (en) * | 2016-11-15 | 2017-03-08 | 安徽江淮汽车集团股份有限公司 | A kind of Independent Suspension combines swing arm structure |
| CN106494168A (en) * | 2016-11-15 | 2017-03-15 | 安徽江淮汽车集团股份有限公司 | A kind of automobile suspension swinging arm bushing and rotation axle assembly |
| CN107031717A (en) * | 2016-12-20 | 2017-08-11 | 安徽江淮汽车集团股份有限公司 | Motor turning transition rocker arm assembly |
| CN207212990U (en) * | 2017-08-17 | 2018-04-10 | 安徽江淮汽车集团股份有限公司 | A kind of brake-shoe bearing pin oil lubrication mechanism |
-
2020
- 2020-09-19 CN CN202010990435.0A patent/CN112248731A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5022673A (en) * | 1989-02-03 | 1991-06-11 | Honda Giken Kogyo Kabushiki Kaisha | Wheel suspension system for automobiles |
| CN106476553A (en) * | 2016-11-15 | 2017-03-08 | 安徽江淮汽车集团股份有限公司 | A kind of Independent Suspension combines swing arm structure |
| CN106494168A (en) * | 2016-11-15 | 2017-03-15 | 安徽江淮汽车集团股份有限公司 | A kind of automobile suspension swinging arm bushing and rotation axle assembly |
| CN107031717A (en) * | 2016-12-20 | 2017-08-11 | 安徽江淮汽车集团股份有限公司 | Motor turning transition rocker arm assembly |
| CN207212990U (en) * | 2017-08-17 | 2018-04-10 | 安徽江淮汽车集团股份有限公司 | A kind of brake-shoe bearing pin oil lubrication mechanism |
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Application publication date: 20210122 |