CN113715571A - Lightweight integrated aluminum alloy thrust rod with insert - Google Patents
Lightweight integrated aluminum alloy thrust rod with insert Download PDFInfo
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- CN113715571A CN113715571A CN202111176282.7A CN202111176282A CN113715571A CN 113715571 A CN113715571 A CN 113715571A CN 202111176282 A CN202111176282 A CN 202111176282A CN 113715571 A CN113715571 A CN 113715571A
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 21
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 46
- 230000002093 peripheral effect Effects 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 9
- 230000000670 limiting effect Effects 0.000 claims description 59
- 230000002787 reinforcement Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 239000013585 weight reducing agent Substances 0.000 abstract description 10
- 238000005452 bending Methods 0.000 description 6
- 238000005266 casting Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/001—Suspension arms, e.g. constructional features
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Abstract
The invention relates to a lightweight integrated aluminum alloy thrust rod with an insert, which comprises a rod body and ball heads integrally formed at two ends of the rod body, wherein each ball head is provided with a mounting hole for mounting a ball pin; an annular insert is embedded in the inner wall surface of the mounting hole, the insert is made of a material different from that of the ball head, and the clamp spring is arranged on the inner peripheral wall of the insert; the rod body comprises a main connecting plate for connecting the peripheral surfaces of the two ball heads, the plate surface of the main connecting plate is parallel to the end surfaces of the ball heads, a plurality of reinforcing plates are arranged on the plate surfaces on the two sides of the main connecting plate, the reinforcing plates are vertically connected with the plate surface of the main connecting plate, and the two ends of each reinforcing plate are respectively connected with the peripheral surfaces of the corresponding ball heads; thereby forming first lightening slots between adjacent reinforcing plates; and a second weight reducing groove is formed in the peripheral wall of each ball head and is positioned on one side far away from the clamp spring mounting groove. The thrust rod has good weight reduction effect while ensuring strength and rigidity.
Description
Technical Field
The invention relates to a light-weight automobile part, in particular to a light-weight integrated aluminum alloy thrust rod with an insert.
Background
In recent years, with the increase of environmental pollution, the environmental protection is more and more strict, and the corresponding national emission standards and the six emission standards put higher demands on the automobile emission standards and the fuel standards. According to statistics of relevant data, the oil consumption can be reduced by 0.2-0.8L/100 Km when the mass of the automobile is reduced by 100 kg. Therefore, automobile enterprises urgently need to reduce the emission standard and oil consumption of automobiles by carrying out lightweight optimization design on automobile parts.
The thrust rod assembly mainly comprises a ball head, a rod body, a clamp spring retainer ring and a spherical hinge assembly, wherein the spherical hinge assembly comprises a spherical hinge ball pin, a spherical hinge upper end cover, a spherical hinge lower end cover and spherical hinge rubber. The thrust rod is arranged on the automobile driving suspension and used for transmitting longitudinal load and torque.
The thrust rod in the prior art generally comprises a ball head and a circular tube-shaped rod body, and because the working load of the thrust rod is large, forged steel materials are adopted for meeting the use requirements, the structural shape cannot be changed randomly due to the forging process, and the weight reduction of the structure optimization design is difficult to carry out. In addition, the connection mode of the ball head and the rod body mostly adopts welding and hot riveting processes, the requirements on a die tool and process control are higher, the cost is higher, the strength of the connection position of the ball head and the rod body is poor, and the failure phenomenon that the ball head and the rod body are separated by pulling is easy to occur. And because this bulb and connection process of the body of rod, lead to the body of rod to adopt the circular cross-sectional shape only, and this kind of cross-sectional shape, there are moment of inertia low and cross sectional area is little shortcoming, and intensity and rigidity are all not good, appear bending failure phenomenon easily. To improve this problem, the wall thickness and diameter of the section ring can only be increased, but due to the large length of the rod body, such structural optimization can lead to the mass of the thrust rod being greatly increased, and the goal of light weight is difficult to achieve.
Therefore, a lightweight integrated aluminum alloy thrust rod with an insert, which has a good weight reduction effect while ensuring strength and rigidity, is required.
Disclosure of Invention
The invention aims to solve the technical problem of providing a light-weight integrated aluminum alloy thrust rod with an insert, which ensures the strength and the rigidity and has a good weight reduction effect.
The technical scheme adopted by the invention for solving the technical problems is as follows: the lightweight integrated aluminum alloy thrust rod with the insert comprises a rod body and ball heads integrally formed at two ends of the rod body, wherein each ball head is provided with a mounting hole for mounting a ball pin; an annular insert is embedded in the inner wall surface of the mounting hole, the insert is made of a material different from that of the ball head, and the clamp spring is arranged on the inner peripheral wall of the insert;
the rod body comprises a main connecting plate for connecting the peripheral surfaces of two ball heads, the plate surface of the main connecting plate is parallel to the end surfaces of the ball heads, a plurality of reinforcing plates are arranged on the plate surfaces on two sides of the main connecting plate, the reinforcing plates are vertically connected with the plate surface of the main connecting plate, and the two ends of each reinforcing plate are respectively connected with the peripheral surfaces of the corresponding ball heads; thereby forming first weight-reducing grooves between adjacent ones of the reinforcing plates;
and a second weight reducing groove is formed in the peripheral wall of each ball head and is positioned on one side far away from the clamp spring mounting groove.
In order to facilitate the drawing of the die in the casting process, preferably, the second weight-reducing groove extends axially to the end face corresponding to the ball head so as to be step-shaped, and the extending direction is parallel to the opening direction of the first weight-reducing groove. The second weight-reducing groove is step-shaped, and the extending direction of the second weight-reducing groove is parallel to the opening direction of the first weight-reducing groove, so that the die drawing directions of the second weight-reducing groove and the first weight-reducing groove are consistent, and casting is facilitated.
In order to ensure the weight reduction effect and increase the strength and rigidity of the rod body, preferably, the thickness d of the reinforcing plate is 3-8mm, the height h is 20-30mm, and
because the thickness of the reinforcing plate is too thin, the strength and the rigidity are not good, the thickness of the reinforcing plate is too thick, the weight reduction effect is not good, the thickness of the reinforcing plate in the range is proper, and the height of the reinforcing plate is increased, so that the section inertia moment can be increased, and the rigidity of the rod body is improved.
In order to reduce the weight and ensure the strength and rigidity of the rod body, preferably, three reinforcing plates corresponding to each other are arranged on each side plate surface of the main connecting plate, and the corresponding upper reinforcing plate and the corresponding lower reinforcing plate positioned on the two sides are connected with each other, so that two side walls of the rod body are formed. Further preferably, the distance between adjacent reinforcing plates is 25-35mm, and the width of the main connecting plate is less than 70mm, the distance range and the width of the main connecting plate are selected to reduce weight and improve rigidity and strength of the rod body, and the distance between the reinforcing plates is controlled within the range to improve the inertia moment of the section of the rod body, so that the rigidity is further improved.
Preferably, the outer edge line of the rod body surface along the axial direction is parallel to the elastic center line of the rod body. The extension direction of the elastic center line of the rod body can be regarded as the load loading direction, so that the outer edge line is parallel to the elastic center line of the rod body, the load of the rod body can be parallel to the axial direction as much as possible, and therefore, the tension and compression stress is mainly applied, the bending stress is reduced, and the total stress is reduced.
In order to prevent the bulb from being damaged, the bulb is outwards protruded in the direction perpendicular to the axial direction of the rod body, so that thickened parts are formed on two sides. Because the stress direction of the thrust rod is mainly axial tension or pressure, the stress concentration can occur in the direction vertical to the axial direction of the rod body on the ball head, and the stress concentration at the position can be relieved by the arrangement of the thickened part, so that the ball head is prevented from being damaged.
Preferably, the insert is an integral type and comprises an upper limit portion, a lower limit portion and a connecting portion for connecting the upper limit portion and the lower limit portion. The integral insert has high integral structural strength, and is convenient for mold design and insert placement during casting; and the axial strength is better, and the bulb can be prevented from being burst by axial component force generated by expansion of spherical hinge rubber in the bulb.
Further preferred, go up spacing muscle on having bellied first upper limit on the periphery wall of spacing portion, have bellied first spacing muscle down on the periphery wall of spacing portion to play limiting displacement, adopt spacing muscle as limit structure, simple structure is convenient for the preparation of inserts, reduces the cost of inserts. In order to improve the limiting effect, it is further preferable that two first upper limiting ribs are axially arranged at intervals, and two first lower limiting ribs are axially arranged at intervals.
Preferably, the upper surface of the first upper limiting rib is a circular arc surface, and the lower surface of the first upper limiting rib is a plane; the lower surface of the first lower limiting rib is an arc surface, and the upper surface of the first lower limiting rib is a plane. The arc surfaces on the first upper limiting rib and the first lower limiting rib can reduce stress concentration and reduce the stress of the contact position of the arc surfaces and the ball head; the plane can increase the contact area between the limiting rib and the ball head, so that the axial connection strength of the insert and the ball head is enhanced, and the insert is prevented from moving up and down on the ball head; and the contact area is increased, the load transmitted to the ball head contact position can be reduced, and the stress of the plane and the ball head contact position is reduced.
In order to prevent the insert from rotating along the circumferential direction, the outer circumferential surface of the connecting part is provided with a first inward-concave rotation preventing plane. In order to have better anti-rotation effect, a plurality of first anti-rotation planes are arranged at intervals. Preferably, the first anti-rotation planes are uniformly arranged at four intervals along the circumferential direction. Further preferably, the first rotation-preventing plane is disposed at any one or more positions of the outer peripheral surface of the connecting portion, between the two first upper limiting ribs, and between the two first lower limiting ribs.
Preferably, the insert is split, and comprises an annular upper insert and an annular lower insert. The split type insert has the advantages that the cost of a single insert is low, and the machining treatment is simple.
Further preferably, the peripheral wall of the upper insert is provided with a second raised upper limiting rib, and the peripheral wall of the lower insert is provided with a second raised lower limiting rib. The limiting rib is adopted as a limiting structure, the structure is simple, the preparation of the insert is convenient, and the cost of the insert is reduced. In order to improve the limiting effect, it is further preferred that two second upper limiting ribs are axially arranged at intervals, and two second lower limiting ribs are axially arranged at intervals.
Preferably, the upper surface of the second upper limiting rib is a circular arc surface, and the lower surface of the second upper limiting rib is a plane; the lower surface of the second lower limiting rib is an arc surface, and the upper surface of the second lower limiting rib is a plane. The arc surfaces on the second upper limiting rib and the second lower limiting rib can reduce stress concentration and reduce the stress of the contact position of the arc surface and the ball head; the plane can increase the contact area between the limiting rib and the ball head, so that the axial connection strength of the insert and the ball head is enhanced, and the insert is prevented from moving up and down on the ball head; and the contact area is increased, the load transmitted to the ball head contact position can be reduced, and the stress of the plane and the ball head contact position is reduced.
In order to prevent the upper insert and the lower insert from rotating along the circumferential direction, an inwards concave second anti-rotation plane is arranged between the second upper limiting ribs of the upper insert, and an inwards concave third anti-rotation plane is arranged between the second lower limiting ribs of the lower insert. In order to have a better anti-rotation effect, the second anti-rotation plane and the third anti-rotation plane are arranged at intervals. Preferably, the second rotation-preventing plane and the third rotation-preventing plane are uniformly provided with four rotation-preventing planes at intervals along the circumferential direction.
Compared with the prior art, the invention has the advantages that:
1. the rod body and the ball head are integrally cast by adopting aluminum alloy, so that the strength and the rigidity of the connecting position of the rod body and the ball head are improved while the weight is reduced, and the damage failure of the connecting position is prevented.
2. The arrangement of the insert enables the insert to be made of materials different from that of the ball head, the insert can be made of materials such as high-performance steel according to requirements, and materials with higher strength are used to prevent abrasion of the position; and the jump ring mounting groove also is located the inserts, and the higher inserts of intensity can prevent that the jump ring from popping out.
3. The main connecting plate and the reinforcing plate are matched to form the rod body, the strength of the rod body can be improved due to the arrangement of the reinforcing plate, and meanwhile, the inertia moment of the cross section of the rod body can be improved due to the reinforcing plate, so that the rigidity is improved; and the formation of the first weight-reducing grooves between the reinforcing plates can further reduce the weight.
4. The second lightening groove is formed in the ball head, so that the weight can be further lightened, and the position close to the clamp spring mounting groove is a stress concentration position, and the second lightening groove is located on one side far away from the clamp spring mounting groove, so that the strength of the ball head can be guaranteed while the weight is lightened.
5. The plate surface of the connecting plate is parallel to the end surface of the ball head, so that the opening of the first weight reducing groove faces horizontally after the thrust rod is installed, water is not accumulated in the first weight reducing groove, a drain hole is not required to be formed, and the influence of stress concentration at the drain hole on the strength of the rod body is prevented.
6. The thrust rod of the invention can reduce the weight by more than 30 percent compared with the steel thrust rod in the prior art under the condition of meeting the use conditions of rigidity, strength and the like.
Drawings
Fig. 1 is a schematic structural view of a rod body according to embodiments 1 and 2 of the present invention;
FIG. 2 is a schematic view showing another angle structure of the stick body according to embodiments 1 and 2 of the present invention;
FIG. 3 is a schematic view of the outer edge line of the rod bodies according to embodiments 1 and 2 of the present invention;
FIG. 4 is a cross-sectional structural view of a rod body according to embodiments 1 and 2 of the present invention;
FIG. 5 is a schematic view of the insert of embodiment 1 of the present invention;
FIG. 6 is a schematic view of another angle configuration of the insert of embodiment 1 of the present invention;
FIG. 7 is a schematic cross-sectional view E-E of FIG. 6;
FIG. 8 is a schematic structural view of an insert according to embodiment 2 of the present invention;
FIG. 9 is a schematic view of another angle configuration of the insert of embodiment 2 of the present invention;
FIG. 10 is a schematic cross-sectional view D-D of FIG. 9;
FIG. 11 is a schematic structural view of a ball head portion according to embodiment 1 of the present invention;
FIG. 12 is a schematic cross-sectional view B-B of FIG. 11;
FIG. 13 is a schematic structural view of a ball head portion according to embodiment 2 of the present invention;
fig. 14 is a schematic cross-sectional view C-C of fig. 13.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples.
As shown in fig. 1-14, the rod body 1 of the following embodiment has the same structure, the lightweight integrated aluminum alloy thrust rod with the insert 22 includes the rod body 1 and the ball heads 2 integrally formed at two ends of the rod body 1, each ball head 2 has a mounting hole 21 for mounting the ball hinge assembly 3, an annular insert 22 is embedded in the inner wall surface of the mounting hole 21, the insert 22 is made of a material different from that of the ball head 2, and the clamp spring mounting groove 23 is arranged on the inner peripheral wall of the insert 22. The spherical hinge component 3 comprises a spherical pin 31, spherical hinge rubber 32 sleeved outside the spherical pin 31, and a spherical hinge upper end cover 33 and a spherical hinge lower end cover 34 which are respectively covered at two ends of the spherical hinge rubber 32, and the spherical pin 31, the spherical hinge rubber 32, the spherical hinge upper end cover 33 and the spherical hinge lower end cover 34 are combined into a whole through vulcanization; and the ball hinge component 3 is assembled in the mounting hole 21 in a pre-pressed state by abutting against the ball hinge upper end cover 33 and compressing the ball hinge rubber 32 through the clamp spring 35 clamped in the clamp spring mounting groove 23. Therefore, the ball joint rubber 32 will have a tendency to expand outward so that the ball head 2 receives a corresponding outward elastic force.
The shaft body 1 and the ball head 2 of the following embodiment are made of aluminum alloy, and the insert 22 is made of steel material having higher strength than the aluminum alloy.
The rod body 1 comprises a main connecting plate 11 for connecting the peripheral surfaces of two bulbs 2, the plate surface of the main connecting plate 11 is parallel to the end surface of the bulbs 2, a plurality of reinforcing plates 12 are arranged on the plate surfaces of two sides of the main connecting plate 11, the reinforcing plates 12 are vertically connected with the plate surface of the main connecting plate 11, and two ends of each reinforcing plate 12 are respectively connected with the peripheral surfaces of the corresponding bulbs 2; thereby forming first lightening slots 13 between adjacent reinforcing plates 12; and a second lightening groove 24 is formed in the outer peripheral wall of each ball head 2, and the second lightening groove 24 is positioned on one side far away from the clamp spring mounting groove 23. Three reinforcing plates 12 corresponding to each other are provided on each side plate surface of the main connecting plate 11 of the following embodiments, and the corresponding upper and lower reinforcing plates 12 on both sides are connected to each other, thereby forming both side walls of the rod body 1. The distance between adjacent reinforcing plates 12 is 25-35mm, and the width of the main connecting plate 11 is less than 70mm, so that the range of the distance and the width of the main connecting plate 11 can be selected to reduce weight and improve the rigidity and the strength of the rod body 1, and the distance between the reinforcing plates 12 is controlled within the range to improve the inertia moment of the section of the rod body 1, thereby further improving the rigidity. The spacing between adjacent reinforcing plates 12 of the following embodiment is 28mm and the width of the main connecting plate 11 is 60 mm.
In order to facilitate the drawing of the mold during the casting process, the second weight-reducing grooves 24 extend in the axial direction until the end faces of the corresponding ball heads 2, so as to be stepped, and the extending direction is parallel to the opening direction of the first weight-reducing grooves 13. The second lightening groove 24 is step-shaped, and the extending direction of the second lightening groove 24 is parallel to the opening direction of the first lightening groove 13, so that the drawing directions of the second lightening groove 24 and the first lightening groove 13 are consistent, and casting production is facilitated.
In order to ensure the weight reduction effect and increase the strength and rigidity of the rod body 1, the thickness d of the reinforcing plate 12 is 3-8mm, the height h is 20-30mm, and
the reinforcing plate 12 of the following embodiment has a thickness d of about 5mm and a height h of about 22 mm. Since the strength and the rigidity of the reinforcing plate 12 are poor due to the fact that the thickness of the reinforcing plate 12 is too thin, the weight reduction effect is poor due to the fact that the thickness of the reinforcing plate 12 is too thick, the thickness of the reinforcing plate 12 in the range is appropriate, and the rigidity of the rod body 1 can be improved by increasing the section moment of inertia by increasing the height of the reinforcing plate 12.
The outer edge line a of the surface of the rod body 1 along the axial direction is parallel to the elastic center line of the rod body 1. The extending direction of the elastic center line of the rod body 1 can be regarded as the load loading direction, so that the outer edge line a is parallel to the elastic center line of the rod body 1, the load of the rod body 1 can be parallel to the axial direction as much as possible, and therefore, the tension compression stress is mainly applied, the bending stress is reduced, and the total stress is reduced. In order to prevent the ball head 2 from being damaged, the ball head 2 protrudes outward in a direction perpendicular to the axial direction of the shaft body 1, so that thickened portions 25 are formed on both sides. Because the stress direction of the thrust rod is mainly axial tension or pressure, stress concentration can occur in the axial vertical direction of the ball head 2 and the rod body 1, and the stress concentration at the position can be relieved by the arrangement of the thickened part 25, so that the ball head 2 is prevented from being damaged.
Example 1: as shown in fig. 5 to 7, and 11 to 12, the insert 22 of the present embodiment is an integral body, and includes an upper limit portion 221, a lower limit portion 222, and a connecting portion 223 connecting the upper limit portion 221 and the lower limit portion 222. The integral insert 22 has high integral structural strength, and is convenient for mold design and insert 22 placement during casting; and the axial strength is better, and the ball head 2 can be prevented from being burst by the axial component force generated by the expansion of the spherical hinge rubber 32 in the ball head 2.
In this embodiment, the outer peripheral wall of the upper stopper 221 has two raised first upper stopper ribs 22a, the outer peripheral wall of the lower stopper 222 has two raised first lower stopper ribs 22b, and the first upper stopper ribs 22a are axially spaced apart from each other, and the first lower stopper ribs 22b are axially spaced apart from each other. The upper surface of the first upper limiting rib 22a is a circular arc surface, and the lower surface of the first upper limiting rib 22a is a plane; the lower surface of the first lower limiting rib 22b is an arc surface, and the upper surface of the first lower limiting rib 22b is a plane. The arc surfaces on the first upper limiting rib 22a and the first lower limiting rib 22b can reduce stress concentration, and reduce the stress at the contact position of the arc surfaces and the ball head 2; the plane can increase the contact area between the limiting rib and the ball head 2, so that the axial connection strength of the insert 22 and the ball head 2 is enhanced, and the insert 22 is prevented from moving up and down on the ball head 2; and the contact area is increased, the load transmitted to the contact position of the ball head 2 can be reduced, and the stress of the contact position of the plane and the ball head 2 is reduced.
In order to prevent the insert 22 from rotating in the circumferential direction, the outer circumferential surface of the connecting portion 223 has a first rotation-preventing concave surface 22 c. In order to have a better anti-rotation effect, the first anti-rotation planes 22c of the present embodiment are disposed on the outer circumferential surface of the connecting portion 223, and four are uniformly disposed along the circumferential direction. In addition, the first rotation preventing plane 22c may be disposed at any one or more positions of the outer peripheral surface of the connecting portion 223, between the two first upper limiting ribs 22a, and between the two first lower limiting ribs 22 b.
Example 2: as shown in fig. 8 to 10 and 13 to 14, the insert 22 of the present embodiment is a split type including an annular upper insert 224 and an annular lower insert 225. The split type insert 22 has the advantages that the cost of the single insert 22 is low, and the machining treatment is simple.
Further preferably, the outer peripheral wall of the upper insert 224 has a second raised upper limiting rib 226, the outer peripheral wall of the lower insert 225 has a second raised lower limiting rib 227, two second upper limiting ribs are axially spaced, and two second lower limiting ribs are axially spaced. The upper surface of the second upper limiting rib is an arc surface, and the lower surface of the second upper limiting rib is a plane; the lower surface of the second lower limiting rib is an arc surface, and the upper surface of the second lower limiting rib is a plane. The arc surfaces on the second upper limiting rib and the second lower limiting rib can reduce stress concentration and reduce the stress of the contact position of the arc surface and the ball head 2; the plane can increase the contact area between the limiting rib and the ball head 2, so that the axial connection strength of the insert 22 and the ball head 2 is enhanced, and the insert 22 is prevented from moving up and down on the ball head 2; and the contact area is increased, the load transmitted to the contact position of the ball head 2 can be reduced, and the stress of the contact position of the plane and the ball head 2 is reduced.
In order to prevent the upper insert and the lower insert from rotating along the circumferential direction, an inward-concave second anti-rotation plane 228 is arranged between the second upper limiting ribs 226 of the upper insert 224, an inward-concave third anti-rotation plane 229 is arranged between the second lower limiting ribs 227 of the lower insert 225, and four anti-rotation planes 228 and 229 are uniformly arranged along the circumferential direction at intervals.
The mass of the prior art steel thrust rod is generally 7.6Kg, the mass of the thrust rod of the above embodiment 1 is 5.1Kg, and the weight reduction rate is 33%; the thrust rod of the above example 2 had a mass of 4.9Kg and a weight reduction of 36%.
Through simulation analysis, the maximum plastic strain of the insert 22, the maximum plastic strain of the ball head 2, the maximum plastic strain of the rod body 1 and the minimum bending stiffness of the section of the rod body 1 can reach 1.2%, 0.9% and 0.59% respectively under the condition that the strength of the embodiment can reach 250KN load, and the minimum bending stiffness of the section of the rod body 1 can reach 2.89 x 1010N*mm2And the critical bending load can reach 341KN, and the use requirement of the thrust rod can be met.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.
Claims (10)
1. The utility model provides a lightweight integral type aluminum alloy distance rod with inserts, including the body of rod (1) and integrated into one piece in bulb (2) at body of rod (1) both ends, every bulb (2) all have mounting hole (21) that are used for installing ball round pin (31), its characterized in that: an annular insert (22) is embedded in the inner wall surface of the mounting hole (21), the insert (22) is made of a material different from that of the ball head (2), and a clamp spring (23) is arranged on the inner peripheral wall of the insert (22);
the rod body (1) comprises a main connecting plate (11) which is connected with the peripheral surfaces of two bulbs (2), the plate surface of the main connecting plate (11) is parallel to the end surface of the bulbs (2), a plurality of reinforcing plates (12) are arranged on the plate surfaces of two sides of the main connecting plate (11), the reinforcing plates (12) are vertically connected with the plate surface of the main connecting plate (11), and the two ends of each reinforcing plate (12) are respectively connected with the peripheral surfaces of the corresponding bulbs (2); thereby forming first lightening slots (13) between adjacent reinforcement plates (12);
and a second lightening groove (24) is formed in the peripheral wall of each ball head (2), and the second lightening groove (24) is located on one side far away from the clamp spring mounting groove (23).
2. The lightweight, integrated aluminum alloy thrust rod with insert of claim 1, wherein: the second lightening groove (24) extends along the axial direction until the end face of the ball head (2) corresponds to the second lightening groove, so that the second lightening groove is step-shaped, and the extending direction is parallel to the opening direction of the first lightening groove (13).
3. The lightweight, integrated aluminum alloy thrust rod with insert of claim 1, wherein: the thickness d of the reinforcing plate (12) is 3-8mm, the height h is 20-30mm, and
4. the lightweight, integrated aluminum alloy thrust rod with insert of claim 1, wherein: the main connecting plate is characterized in that three reinforcing plates (12) corresponding to each other are arranged on each side plate surface of the main connecting plate (11), and the corresponding upper reinforcing plate and the corresponding lower reinforcing plate (12) positioned on two sides are connected with each other, so that two side walls of the rod body (1) are formed.
5. The lightweight, integrated aluminum alloy thrust rod with insert of claim 4, wherein: the distance between the adjacent reinforcing plates (12) is 25-35mm, and the width of the main connecting plate (11) is less than 70 mm.
6. The lightweight, integrated aluminum alloy thrust rod with insert of claim 1, wherein: the axial outer edge line (a) of the surface of the rod body (1) is parallel to the elastic central line of the rod body (1).
7. The lightweight, integrated aluminum alloy thrust rod with insert of claim 1, wherein: the ball head (2) and the rod body (1) are protruded outwards in the axial direction vertical to each other, so that thickened parts (25) are formed on two sides of the rod body.
8. The lightweight integrated aluminum alloy thrust rod with insert of any one of claims 1 to 7, wherein: the insert (22) is integral and comprises an upper limit part (221), a lower limit part (222) and a connecting part (223) for connecting the upper limit part (221) and the lower limit part (222).
9. The lightweight, integrated aluminum alloy thrust rod with insert of claim 8, wherein: the outer peripheral wall of the upper limiting part (221) is provided with a raised first upper limiting rib (22a), and the outer peripheral wall of the lower limiting part (222) is provided with a raised first lower limiting rib (22 b); the upper surface of the first upper limiting rib (22a) is an arc surface, and the lower surface of the first upper limiting rib (22a) is a plane; the lower surface of the first lower limiting rib (22b) is an arc surface, and the upper surface of the first lower limiting rib (22b) is a plane.
10. The lightweight integrated aluminum alloy thrust rod with insert of any one of claims 1 to 7, wherein: the insert (22) is of a split type and comprises an annular upper insert (224) and an annular lower insert (225).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111176282.7A CN113715571A (en) | 2021-10-09 | 2021-10-09 | Lightweight integrated aluminum alloy thrust rod with insert |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111176282.7A CN113715571A (en) | 2021-10-09 | 2021-10-09 | Lightweight integrated aluminum alloy thrust rod with insert |
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| CN113715571A true CN113715571A (en) | 2021-11-30 |
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| CN (1) | CN113715571A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102083641A (en) * | 2008-04-14 | 2011-06-01 | Zf腓特烈港股份公司 | Joint and/or bearing arrangement |
| CN203557929U (en) * | 2013-12-05 | 2014-04-23 | 中国重汽集团济南动力有限公司 | H-type whole forging thrust rod |
| CN109226620A (en) * | 2018-10-10 | 2019-01-18 | 江苏亚太安信达铝业有限公司 | A kind of forging molding process of heavy goods vehicles aluminium alloy vertical pulling distance rod |
| CN211166294U (en) * | 2019-10-30 | 2020-08-04 | 科曼车辆部件***(苏州)有限公司 | Lightweight thrust rod assembly in air suspension system |
| CN216915424U (en) * | 2021-10-09 | 2022-07-08 | 北京航空航天大学宁波创新研究院 | Lightweight integrated aluminum alloy thrust rod with insert |
-
2021
- 2021-10-09 CN CN202111176282.7A patent/CN113715571A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102083641A (en) * | 2008-04-14 | 2011-06-01 | Zf腓特烈港股份公司 | Joint and/or bearing arrangement |
| CN203557929U (en) * | 2013-12-05 | 2014-04-23 | 中国重汽集团济南动力有限公司 | H-type whole forging thrust rod |
| CN109226620A (en) * | 2018-10-10 | 2019-01-18 | 江苏亚太安信达铝业有限公司 | A kind of forging molding process of heavy goods vehicles aluminium alloy vertical pulling distance rod |
| CN211166294U (en) * | 2019-10-30 | 2020-08-04 | 科曼车辆部件***(苏州)有限公司 | Lightweight thrust rod assembly in air suspension system |
| CN216915424U (en) * | 2021-10-09 | 2022-07-08 | 北京航空航天大学宁波创新研究院 | Lightweight integrated aluminum alloy thrust rod with insert |
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