A triangular control arm for a shock-absorbing automobile suspension system

Abstract

The present invention relates to a triangular control arm for a shock-absorbing automobile suspension system and a production process thereof, comprising an arm body, wherein an upper connecting part, a left connecting part and a right connecting part are arranged at one end of the arm body, the upper connecting part is provided with a ball pin linkage device, the left connecting part and the right connecting part have the same structure and are both provided with a rod pin linkage device, the rod pin linkage device comprises an outer tube body, characterized in that: the arm body comprises a cover plate and a bottom plate, a receiving cavity is arranged between the cover plate and the bottom plate, the receiving cavity is provided with a buffer mechanism, the buffer mechanism comprises a first mounting seat, a buffer spring and a buffer component, the buffer component is linked with the cover plate relative to one end of the buffer spring, and the beneficial effects of the present invention are as follows: a triangular control arm for a shock-absorbing automobile suspension system is provided, which delays deformation of the arm body and prolongs its service life.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, and in particular to a triangular control arm for a shock-absorbing automobile suspension system. Background Art

[0002] The automobile triangular arm is one of the important components in the automobile suspension system. It mainly supports and transfers loads, controls the movement trajectory of the wheels, and the steering function during the driving process of the automobile. It plays a key role in the handling stability, driving smoothness, driving comfort and safety of the automobile. The triangular arm is a key component in the automobile suspension system. The triangular arm mainly includes an arm body, and an upper connecting part is provided at one end of the arm body. The arm body is located at the other end of the upper connecting part, and a left connecting part and a right connecting part are respectively provided on both sides. The upper connecting part is usually provided with a ball head valve, and the left and right connecting parts are respectively linked with the rod pin. After the triangular arm is installed in the automobile suspension system, one of the unavoidable problems during the driving of the vehicle body is severe vibration. As one of the connecting parts, the triangular arm will inevitably be affected by the vibration. The vibration will cause the connection instability at various places, and the triangular arm body is prone to deformation, shortening its service life. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a triangular control arm for a shock-absorbing automobile suspension system in view of the above-mentioned deficiencies in the prior art, so as to delay deformation of the arm body and prolong its service life.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A triangular control arm for a shock-absorbing automobile suspension system comprises an arm body, an upper connecting part is provided at one end of the arm body, and a left connecting part and a right connecting part are respectively provided on both sides of the other end of the arm body where the upper connecting part is provided, the upper connecting part is provided with a ball pin linkage device, the left connecting part and the right connecting part have the same structure and are both provided with a rod pin linkage device, the rod pin linkage device comprises an outer tube body fixedly connected to the arm body, characterized in that the arm body comprises a cover plate with a bent end portion, the cover plate is detachably connected to a bottom plate, a receiving cavity is provided between the cover plate and the bottom plate, the receiving cavity is provided with a buffer mechanism, the buffer mechanism comprises a plurality of groups of first mounting seats uniformly distributed on the bottom plate, the first mounting seat is hollow inside and an opening is provided at one end, the first mounting seat is abutted and linked with a buffer spring, one end of the buffer spring is abutted and connected to the middle part of the first mounting seat, a buffer component made of rubber material is fixedly connected to the other end of the buffer spring relative to the abutting connection with the first mounting seat, and the buffer component is linked with the cover plate relative to one end of the buffer spring.

[0006] By adopting the above technical scheme, the arm body is designed as a cover plate and a bottom plate box-type structure composed of a top and a bottom cover, which is welded together. The coaxiality of the welded pipe is 1.5mm. It is characterized by light weight and high rigidity. A buffer mechanism is further provided between the bottom plate and the cover plate to absorb shock and reduce vibration, delay deformation of the arm body, extend its service life, and absorb shock and reduce vibration for the entire triangular arm, thereby ensuring the connection strength of the upper connecting part, the left connecting part, and the right connecting part with the ball head valve and the rod pin respectively to avoid loosening.

[0007] The above-mentioned triangular control arm for a shock-absorbing automobile suspension system can be further configured as follows: a fixed connection mechanism is provided between the cover plate and the buffer component, the fixed connection mechanism includes a second mounting seat fixedly arranged on the cover plate, the second mounting seat is hollow inside and open at one end, and the buffer component and the second mounting seat are interference fit.

[0008] By adopting the above technical solution, by setting the first mounting seat and the second mounting seat, the buffer spring and the buffer component can be guided and positioned respectively, and the buffer component and the second mounting seat are interference fit to avoid separation of the buffer component and the second mounting seat, so that the reaction force of the buffer spring directly acts on the second mounting seat. Since the material of the second mounting seat is rubber, it can absorb vibration, thereby achieving the effect of shock absorption and delaying the deformation of the cover plate and the bottom plate.

[0009] The above-mentioned triangular control arm for a shock-absorbing automobile suspension system can be further configured as follows: a guide rod is provided in the middle of the first mounting seat, the outer diameter of the guide rod is smaller than the minimum inner diameter of the first mounting seat, and the end of the buffer spring is movably sleeved on the outer periphery of the guide rod.

[0010] By adopting the above technical solution, the guide rod can further guide the buffer spring, avoid the buffer spring from being misplaced, and enhance the structural stability of the buffer mechanism.

[0011] The above-mentioned triangular control arm for a shock-absorbing automobile suspension system can be further configured as follows: the ball pin linkage device includes a ball positioning plate, a ball valve is provided at one end of the ball positioning plate, and a quick-release part that can be detachably connected to a cover plate is provided at the other end of the ball positioning plate relative to the ball valve, the quick-release part is provided with a plurality of groups of positioning holes, the positioning holes are threadedly connected with fasteners, and the quick-release part is detachably connected to the cover plate through the fasteners.

[0012] By adopting the above technical solution, the ball head positioning plate and the arm body are separated, which is convenient for maintenance and replacement, and the quick-release part is in the form of fasteners, wherein the fasteners can be selected from standard parts such as screws, which have high interchangeability, easy assembly and low maintenance cost.

[0013] The above-mentioned triangular control arm for a shock-absorbing automobile suspension system may be further configured as follows: the fasteners form a stable "triangle" structure.

[0014] By adopting the above technical solution, the "triangle" structure has a higher structural stability, so that the displacement between the ball head positioning plate and the cover plate will not change.

[0015] A production process for a triangular control arm of a shock-absorbing automobile suspension system, characterized in that it comprises the following steps:

[0016] S1: Prepare materials, including buffer springs, buffer parts, stamped cover plates and bottom plates;

[0017] S2: pre-assembly, the buffer component in step S1 is pressed into the second mounting seat by a pressing device, and then the two ends of the buffer spring are respectively fixedly connected to the first mounting seat and the buffer component;

[0018] S3: welding, welding the bottom plate and the cover plate in step S2 to form an arm body;

[0019] S4: riveting, riveting the arm body and the outer tube body in step S3, using a heavy-weight relative interference fit;

[0020] S5: surface treatment, treating the inner and outer surfaces of the outer tube in step S4, and then vulcanizing with the colloid;

[0021] The above-mentioned production process of a triangular control arm of a shock-absorbing automobile suspension system can be further configured as follows: step S3 welding adopts carbon dioxide shielded welding.

[0022] By adopting the above technical scheme, special cover and bottom plate welding fixtures are used, carbon dioxide shielded welding is selected, and welding is performed with a manipulator, which effectively solves the welding difficulty caused by springback deformation and ensures the welding quality. The outer tube body and the arm body are riveted with heavy relative interference to ensure the bonding strength. The inner and outer surfaces of the outer tube body are vulcanized with colloid after surface treatment. It is difficult to press off at 4 times the rated axial force. A welding pipe riveting fixture is designed and the accuracy of the welding pipe and hole is improved to ensure the coaxiality requirements.

[0023] Beneficial effects of the present invention: In terms of structure, the above technical scheme is adopted, and the arm body is designed as a cover plate and a bottom plate box structure of a combination of a top and a bottom cover, which is welded, and the coaxiality of the welded pipe is 1.5mm. It has the advantages of light weight and high rigidity. Further, by arranging a buffer mechanism between the bottom plate and the cover plate, it can play a role in shock absorption and shock reduction, delay the deformation of the arm body, and extend its service life. It can also play a role in shock absorption and shock reduction for the entire triangular arm, thereby ensuring the connection strength of the upper connecting part, the left connecting part, and the right connecting part with the ball head valve and the rod pin respectively to avoid loosening; further, the ball head positioning plate is separated from the arm body for easy maintenance and replacement, and quick disassembly The fasteners are used in the form of screws and other standard parts, which have high interchangeability, easy assembly and low maintenance cost. In terms of production technology, special cover and bottom plate welding fixtures are used, carbon dioxide shielded welding is selected, and welding is performed by a manipulator, which effectively solves the welding difficulty caused by springback deformation and ensures the welding quality. The outer tube body and the arm body are riveted with heavy-grade relative interference to ensure the bonding strength. The inner and outer surfaces of the outer tube body are vulcanized with colloid after surface treatment. It is difficult to be pressed off at 4 times the rated axial force. The welding pipe riveting fixture is designed and the accuracy of the welding pipe and hole is improved to ensure the coaxiality requirements.

[0024] The present invention is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0026] Figure 2 It is a structural schematic diagram of a ball stud linkage device according to an embodiment of the present invention;

[0027] Figure 3 Schematic diagram of the buffer mechanism structure of an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figures 1 to 3A triangular control arm for a shock-absorbing automobile suspension system shown in the figure comprises an arm body 1, wherein an upper connecting portion 2 is provided at one end of the arm body 1, and a left connecting portion 3 and a right connecting portion 4 are respectively provided on both sides of the other end of the arm body 1 where the upper connecting portion 2 is provided, wherein the upper connecting portion 2 is provided with a ball stud linkage device, wherein the left connecting portion 3 and the right connecting portion 4 have the same structure and are both provided with a rod-pin linkage device, wherein the rod-pin linkage device comprises an outer tube body 155 fixedly connected to the arm body 1, wherein the arm body 1 comprises a cover plate 6 with a bent end portion, wherein the cover plate 6 is detachably connected to a bottom plate 7, wherein the A receiving cavity is provided between the cover plate 6 and the bottom plate 7, and a buffer mechanism is provided in the receiving cavity. The buffer mechanism includes a plurality of first mounting seats 8 uniformly distributed on the bottom plate 7, the first mounting seats 8 are hollow inside and have an opening at one end, the first mounting seats 8 are abutted and linked with a buffer spring 9, one end of the buffer spring 9 is abutted and connected to the middle of the first mounting seat 8, the other end of the buffer spring 9 is fixedly connected with a buffer member 10 made of rubber material relative to the abutting connection with the first mounting seat 8, and the buffer member 10 is linked with the cover plate 6 relative to one end of the buffer spring 9. A fixed connection mechanism is provided between the cover plate 6 and the buffer member 10, and the fixed connection mechanism includes a second mounting seat 11 fixedly provided on the cover plate 6, the second mounting seat 11 is hollow inside and has an opening at one end, and the buffer member 10 and the second mounting seat 11 are interference fit. A guide rod 12 is provided in the middle of the first mounting seat 8, the outer diameter of the guide rod 12 is smaller than the minimum inner diameter of the first mounting seat 8, and the end of the buffer spring 9 is movably sleeved on the outer periphery of the guide rod 12. The ball pin linkage device includes a ball positioning plate 13, one end of which is provided with a ball valve 14, and the other end of the ball positioning plate 13 opposite to the ball valve 14 is provided with a quick-release portion 131 that can be detachably connected to the cover plate 6, the quick-release portion 131 is provided with 3 groups of positioning holes, and the positioning holes are threadedly connected with fasteners 132. The quick-release portion 131 is detachably connected to the cover plate 6 through the fasteners 132, and the fasteners form a stable "triangle" structure.

[0030] The production process of the triangular control arm of the shock-absorbing automobile suspension system comprises the following steps:

[0031] S1: Prepare materials, including buffer spring 9, buffer member 10, stamped cover plate 6 and bottom plate 7;

[0032] S2: pre-assembly, the buffer member 10 in step S1 is pressed into the second mounting seat by a pressing device, and then the two ends of the buffer spring 9 are respectively fixedly connected to the first mounting seat 8 and the buffer member 10;

[0033] S3: welding, welding the bottom plate 7 and the cover plate 6 in step S2 by using carbon dioxide shielded welding to form the arm body 1;

[0034] S4: riveting, riveting the arm body 1 and the outer tube body 15 in step S3, using a heavy-weight relative interference fit;

[0035] S5: Surface treatment, the inner and outer surfaces of the outer tube body 15 in step S4 are treated, and then vulcanized with the colloid.

Claims

1. A triangular control arm for a shock-absorbing automobile suspension system, comprising an arm body, an upper connecting portion is provided at one end of the arm body, a left connecting portion and a right connecting portion are respectively provided at both sides of the other end of the arm body where the upper connecting portion is provided, the upper connecting portion is provided with a ball stud linkage device, the left connecting portion and the right connecting portion have the same structure and are both provided with a rod-pin linkage device, the rod-pin linkage device comprises an outer tube body fixedly connected to the arm body, characterized in that: The arm body includes a cover plate with a bent end, the cover plate is detachably connected to the bottom plate, a receiving cavity is provided between the cover plate and the bottom plate, the receiving cavity is provided with a buffer mechanism, the buffer mechanism includes several groups of first mounting seats evenly distributed on the bottom plate, the first mounting seat is hollow inside and one end is provided with an opening, the first mounting seat is abutted and linked with a buffer spring, one end of the buffer spring is abutted and connected to the middle of the first mounting seat, the buffer spring is fixedly connected to a buffer member made of rubber material at the other end relative to the abutting connection with the first mounting seat, the buffer member is linked with the cover plate relative to one end of the buffer spring, a fixed connection mechanism is provided between the cover plate and the buffer member, the fixed connection mechanism includes a second mounting seat fixedly arranged on the cover plate, the second mounting seat is hollow inside and one end is open, the buffer member and the second mounting seat are interference fit, a guide rod is provided in the middle of the first mounting seat, the outer circumference diameter of the guide rod is smaller than the minimum inner circumference diameter of the first mounting seat, and the end of the buffer spring is movably sleeved on the outer circumference of the guide rod.

2. The triangular control arm for a shock-absorbing automobile suspension system according to claim 1, characterized in that: The ball pin linkage device includes a ball positioning plate, a ball valve is provided at one end of the ball positioning plate, and a quick-release part that can be detachably connected to the cover plate is provided at the other end of the ball positioning plate opposite to the ball valve. The quick-release part is provided with a plurality of groups of positioning holes, and the positioning holes are threadedly connected with fasteners. The quick-release part is detachably connected to the cover plate through the fasteners.

3. The triangular control arm for a shock-absorbing automobile suspension system according to claim 2, characterized in that: The fasteners form a stable "triangle" structure.

4. The production process of a triangular control arm for a shock-absorbing automobile suspension system according to any one of claims 1 to 3, characterized in that: The following steps are involved: S1: Prepare materials, including buffer springs, buffer parts, stamped cover plates and bottom plates; S2: pre-assembly, the buffer component in step S1 is pressed into the second mounting seat by a pressing device, and then the two ends of the buffer spring are respectively fixedly connected to the first mounting seat and the buffer component; S3: welding, welding the bottom plate and the cover plate in step S2 to form an arm body; S4: riveting, riveting the arm body and the outer tube body in step S3, using a heavy-weight relative interference fit; S5: Surface treatment, treating the inner and outer surfaces of the outer tube in step S4, and then vulcanizing with the colloid.

5. The production process of a triangular control arm for a shock-absorbing automobile suspension system according to claim 4, characterized in that: In step S3, carbon dioxide shielded welding is used for welding.

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