CN218661204U - Novel V-shaped thrust rod - Google Patents

Abstract

The utility model provides a novel V type distance rod, including the three-terminal ball seat, the three-terminal ball seat in the middle of connect as an organic wholely through the casting of straight push rod, wherein straight push rod is the I-steel structure to form the fretwork state in the middle of the I-steel structure. The middle of the three-end ball seat structure is connected into a whole through the straight push rod in a casting mode, friction welding or forging forming is not needed, the structure is formed easily, the strength of the straight push rod of the I-shaped steel structure is guaranteed when the straight push rod of the I-shaped steel structure reduces weight, and the hollow state is formed to guarantee the strength and achieve the purpose of reducing weight. The casting movable block mould is adopted during casting, namely, the straight thrust rod is an I-shaped movable block, three ends of the straight thrust rod are ball seats to be processed, four parts of the straight thrust rod are fixed on an upper shaping plate and a lower shaping plate of the mould, and only the middle movable block part needs to be replaced and then the straight thrust rod is adjusted and fixed on the upper shaping plate and the lower shaping plate, so that blank casting of the thrust rods with different length series can be realized.

Description

Novel V-shaped thrust rod

Technical Field

The utility model relates to an automobile parts specifically is a novel V type distance rod.

Background

The thrust rod prevents the bridge aversion at car thrust rod's effect, and general straight thrust rod can only prevent well rear axle front and back aversion, and V type thrust rod can prevent well rear axle front and back aversion, can also prevent to control the aversion because when the car was turned, well rear axle probably produces the problem of controlling the aversion, leads to leaf spring and tire to produce the friction, can lead to the tire early to grind even the bad accident that takes place to blow out when serious.

CN110525153B discloses a connection method of a thrust rod joint, a straight thrust rod and a V-shaped thrust rod.

CN217475014U discloses a friction welding thrust rod.

CN217532456U discloses a thrust rod, adopts 40Cr forging to replace traditional aluminum alloy structure can strengthen the thrust rod's intensity, increases wearability, prolongs its life.

All three patent documents mentioned above realize the manufacture of the thrust rod and also provide a basis for weight reduction.

(1) The advantage is under the same condition of both ends ball seat structure, through the length change of middle steel pipe, can realize the structural requirement of the straight thrust bar of the different length of many series, reduces the thrust bar of different length series and all need open corresponding forging mould expense.

(2) The disadvantage is that the steel part has a density of 7.9X 10 high weight according to a high speed of thin-wall transformation, and the weight is increased by 10% under the premise of the same structure when the density of ductile iron is 7.1 multiplied by 10 years of flowering under heavy load/m.

(3) The tensile strength of the middle steel pipe is 600Mpa, the yield strength is 355Mpa, the middle steel pipe adopts a rolling or friction welding structure, residual internal stress or welding residual thermal internal stress formed by plastic deformation exists, further structural optimization of parts is limited, and the safety coefficient is low.

Although 40Cr forging is also adopted, the forging requires a special die and equipment, and the cost is relatively high.

Disclosure of Invention

The utility model discloses not only will the lightweight, will realize manufacturing convenience moreover, further configuration optimization improves factor of safety and comparatively, specially provides a novel V type distance rod.

Therefore, the technical scheme of the utility model is, a novel V type distance rod, including the three-terminal ball seat, its characterized in that: the three-end ball seat is triangular in layout, is connected into and becomes V type structure through the casting of straight push rod, straight push rod be I-steel structure to form the fretwork state in the middle of the I-steel structure.

The three-end ball seat structure at this moment is connected as an organic whole through the casting of straight push rod, and friction weld or forging shaping are not needed, and the structure shaping is relatively easy, and the straight push rod of I-steel structure has also guaranteed its intensity for losing weight simultaneously, and it forms the fretwork state and also reaches the purpose that subtracts weight when guaranteeing intensity.

The further improvement is that: the casting is carried out by casting nodular cast iron QTD black sand and then carrying out isothermal salt bath quenching to form a lower bainite and a residual austenite metallographic structure.

The utility model discloses utilize the casting of nodular cast iron QTD black sand, when having replaced the material, also give the isothermal salt bath quenching of nodular cast iron QTD, form bainite and remaining austenite metallographic structure down, only need after the shaping process to both ends ball seat structure can, reduced the processing of being connected the position with the steel pipe, also need not carry out roll extrusion or friction weld.

Compare with steel construction thrust rod, tensile strength exceeds 1050Mpa, and yield strength exceeds 700Mpa, and mechanical properties exceeds 1.75 times, and density is 7.1 x 10 years heavy kg/m year, is less than 10% of steel construction, under the prerequisite of equal length thrust rod, adopts QTD material and I-steel structure, and weight can alleviate more than 20%, and does not have the residual internal stress of roll extrusion or welding internal stress, and factor of safety promotes more than 30%. As for the thrust rods with different length series, one set of mold is required to be manufactured for each variety, and the consistency of the thrust rods is guaranteed.

The further improvement is that: the I-steel structure in the middle of form the fretwork state be two or more, wherein the fretwork state is formed with one or more formation linking arm interval.

The further improvement lies in that: the hollow state is a waist-shaped hole structure.

The forming of waist type pore structure forms the circular arc transition for the junction of linking arm and three-terminal ball seat, need not process this moment and also can not produce the internal stress because of processing, destroys the structural feature of product.

The further improvement lies in that: the connection part of the two ends of the I-shaped steel structure and the excircle of the three-end ball seat is in circular arc transition.

The arc transition is not only beautiful, but also does not generate stress and destroy the structural characteristics of the product without processing.

The further improvement lies in that: and a process sinking platform is also arranged on the crossed surface of the two straight push rods and the ball seat.

The process sinking platform is also arranged for reducing weight.

Has the advantages that:

the utility model discloses V type distance rod adopts whole mould manufacturing process, makes the blank, and one set of mould all need be made to every variety, as for the distance rod of different length series, one set of mould need be made to every variety, guarantees its uniformity.

The casting loose piece mould is adopted during casting, namely, the straight thrust rod is an I-shaped loose piece, the three ends of the straight thrust rod are ball seats to be processed, the four parts of the straight thrust rod are fixed on the upper and lower shaping plates of the mould, the thrust rods with different length series only need to be replaced by the middle loose piece part, and then the straight thrust rod is adjusted and fixed on the upper and lower shaping plates, so that blank casting of the thrust rods with different length series can be realized, and the investment cost and the resource waste of the mould are greatly reduced.

Drawings

Fig. 1 is a front view of the V-shaped thrust rod of the present invention.

Fig. 2 is a view from E-E of fig. 1.

Fig. 3 is a view from direction K of fig. 1.

Fig. 4 is an enlarged view at a of fig. 1.

In the figure, 1 is a three-end ball seat, 2 is a straight push rod, 3 is an I-shaped steel structure, 4 is a hollow state, 5 is formed by connecting arms at intervals, 6 is a waist-shaped hole structure, 7 is an arc transition, and 8 is a process sinking platform.

Detailed Description

The utility model is shown in figures 1-4.

The utility model provides a novel V type distance rod, includes three-terminal ball seat 1, three-terminal ball seat 1 is the triangle-shaped overall arrangement, connects through the casting of straight push rod 2 and be and become V type structure, straight push rod 2 be I-steel structure 3 to form fretwork state 4 in the middle of the I-steel structure.

The structure of the three-end ball seat 1 at the moment is cast and connected into a whole through the straight push rod 2, friction welding or forging forming is not needed, the structure forming is relatively easy, the straight push rod 2 of the I-shaped steel structure 3 ensures the strength of the I-shaped steel structure while reducing the weight, and the hollow state 4 is formed to achieve the purpose of reducing the weight while ensuring the strength.

The casting adopts nodular cast iron QTD black sand casting, and then isothermal salt bath quenching is carried out to form lower bainite and residual austenite metallographic structures.

The method is characterized in that nodular cast iron QTD (quantitative trait locus) black sand is used for casting, materials are replaced, isothermal salt bath quenching is performed on the nodular cast iron QTD, a lower bainite and residual austenite metallographic structure is formed, only the ball seat structures at two ends need to be processed after forming, processing of the connecting part of the nodular cast iron QTD and the steel pipe is reduced, and rolling or friction welding is not needed.

The utility model discloses compare with steel construction distance rod, tensile strength exceeds 1050Mpa, and yield strength exceeds 700Mpa, and mechanical properties exceeds 1.75 times, and density is 7.1X 10 full-length heavy year kg/m, is less than 10% of steel construction, under the prerequisite of equal length distance rod, adopts QTD material and I-steel structure, and weight can alleviate more than 20%, and does not have rolling residual internal stress or internal welding stress, and factor of safety promotes more than 30%. As for the thrust rods of different length series, a set of mold needs to be manufactured for each variety to ensure the consistency of the thrust rods.

The middle of the I-shaped steel structure 3 is provided with two or more hollow-out states 4, wherein the hollow-out states 4 are formed by one or more connecting arms 5 at intervals.

The hollow state 4 is a waist-shaped hole structure 6.

The waist-shaped hole structure 6 is formed to form an arc transition 7 at the joint of the connecting arm 5 and the three-end ball seat 1, and at the moment, internal stress can not be generated due to processing without processing, so that the structural characteristics of a product are damaged.

And the connection part of the two ends of the I-shaped steel structure 3 and the excircle of the three-end ball seat 1 is in circular arc transition 7.

The circular arc transition 7 is not only beautiful, but also does not generate stress and destroy the structural characteristics of the product due to processing without processing.

And a technological sinking platform 8 is also arranged on the crossed surface of the two straight push rods and the ball seat.

The utility model discloses V type distance rod adopts whole mould manufacturing process, makes the blank, and one set of mould all need be made to every variety, as for the distance rod of different length series, one set of mould need be made to every variety, guarantees its uniformity.

The casting loose piece mould is adopted during casting, namely, the straight thrust rod is an I-shaped loose piece, the three-end ball seat 1 is a ball seat to be processed, four parts are fixed on the upper and lower shaping plates of the mould, the different length series thrust rods only need to be replaced by the middle loose piece part, and then the adjustment and the fixation are carried out on the upper and lower shaping plates, so that the blank casting of the different length series thrust rods can be realized, and the investment cost and the resource waste of the mould are greatly reduced.

Claims (4)

1. The utility model provides a novel V type distance rod, includes three-terminal ball seat (1), its characterized in that: the three-end ball seat (1) is in a triangular layout, is connected into and becomes a V-shaped structure through the casting of the straight push rod (2), and the straight push rod (2) is in an I-shaped steel structure (3) and forms a hollow state (4) in the middle of the I-shaped steel structure.

2. The novel V-shaped thrust rod of claim 1, wherein: the I-steel structure (3) middle hollow state (4) that forms be two or more, wherein hollow state (4) are formed with one or more formation linking arm (5) interval.

3. The novel V-shaped thrust rod according to claim 1 or 2, wherein: the hollow state (4) is a waist-shaped hole structure (6).

4. The novel V-shaped thrust rod according to claim 1 or 2, wherein: the connection part of the two ends of the I-shaped steel structure (3) and the excircle of the three-end ball seat (1) is in circular arc transition (7).

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