Forged integrated thrust rod assembly

Abstract

The utility model discloses a forged integrated thrust rod assembly, which belongs to the technical field of automobile parts and comprises a thrust rod shell, a cross-shaped steel connecting rod is arranged in the middle of the thrust rod shell, mounting holes are arranged at two ends of the thrust rod shell, torsion rubber cores are arranged in the mounting holes, and clamp spring mounting positions are arranged at the top ends of the torsion rubber cores. The torsion rubber core comprises a shaft body shell and a pin shaft, the pin shaft is sleeved with the shaft body shell, the middle of the pin shaft is a ball part, and screw holes are formed in the two ends of the pin shaft. The thrust rod shell is integrally forged, so that the risks that the size precision is poor and the riveting position is loosened and disengaged can be effectively avoided, and the effects that the pin shaft in the torsion rubber core can freely rotate and is easy to load are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automotive parts, and particularly relates to a forging integrated thrust rod assembly. Background Art

[0002] The thrust rod assembly is a component of the multi-axle suspension system of an automobile, usually arranged on the middle and rear axles of a heavy-duty truck. One end of it is hinged to the vehicle body, and the other end is hinged to the middle axle or the rear axle. Its main function is to transmit longitudinal forces and their torques, such as traction force, braking force, and centrifugal force when the vehicle turns. In the thrust rod assembly, the connection structure plays a very important role. However, the connection structures of the existing thrust rod assemblies on the market are usually in rigid fit, which makes the handling stability, ride comfort, and vibration prevention performance of heavy-duty trucks poor. Moreover, production and assembly are also very difficult. The technical problems existing in the thrust rod assemblies on the market currently are that their shells are mostly composed of forging rod heads and steel pipes riveted together. Before riveting, the rod heads and rod bodies need to be processed to the specified dimensions respectively and then heated for riveting. After riveting, the finished product has poor dimensional accuracy, and there is a risk of loosening and detachment at the riveting part. The steel pipes are prone to bending and breaking. Moreover, the existing thrust rod assemblies use rubber rubber cores, and under the complex acting forces during vehicle driving, the rubber is prone to fatigue aging and failure. Content of the Utility Model

[0003] In view of the above deficiencies of the prior art, the purpose of the utility model is to provide a forging integrated thrust rod assembly. The thrust rod shell is integrally forged, which can effectively avoid poor dimensional accuracy, the risk of loosening and detachment at the riveting place, and realizes the free rotation of the pin shaft in the torsion rubber core, making it easy to install on the vehicle.

[0004] The technical solution adopted by the utility model is a forging integrated thrust rod assembly, which includes a thrust rod shell. There is a cross-shaped steel connecting rod in the middle of the thrust rod shell. Installation holes are provided at both ends of the thrust rod shell. A torsion rubber core is arranged in the installation holes. A snap ring installation position is provided at the top of the torsion rubber core. The torsion rubber core includes a shaft body shell and a pin shaft. The shaft body shell is sleeved outside the pin shaft. The middle part of the pin shaft is a spherical part, and screw holes are provided at both ends of the pin shaft;

[0005] The shaft body shell includes a bearing shell. The bearing shell is sleeved at the position of the spherical part. A sheath is sleeved outside the bearing shell. Dust-proof rubber covers are movably connected to both ends of the sheath. The dust-proof rubber covers are sleeved outside the pin shaft;

[0006] The dust-proof rubber cover includes a dust-proof rubber sleeve and an iron pad. The iron pad is sleeved outside the dust-proof rubber sleeve.

[0007] The characteristics of the utility model also lie in that

[0008] The sheath includes an iron sleeve and a polyurethane sleeve. The polyurethane sleeve is sleeved outside the iron sleeve.

[0009] The inner surface of the bearing housing is provided with a groove covering the spherical protrusion.

[0010] The screw hole can be either a single hole or multiple holes.

[0011] The beneficial effects of the present utility model are as follows:

[0012] (1) In the forging integrated thrust rod assembly of the present utility model, the thrust rod housing is integrally forged and formed. Due to the variable cross-section structure of the thrust rod assembly, the weight can be reduced by about 15%. The rotatable joint is used to replace the traditional rubber joint, and the rubber core pin shaft can rotate conveniently for vehicle loading. Moreover, it avoids the poor dimensional accuracy of the finished product after riveting of the traditional thrust rod assembly and the risk of loosening and disconnection at the riveting part. At the same time, it also avoids the disadvantages of fatigue aging of the traditional rubber core.

[0013] (2) The dust-proof rubber cover in the forging integrated thrust rod assembly of the present utility model can prevent dust and impurities from entering the torsion rubber core and can prevent the grease in the torsion rubber core from overflowing. Description of the Drawings

[0014] Figure 1 is the overall structure diagram of a forging integrated thrust rod assembly of the present utility model;

[0015] Figure 2 is the structure diagram of the torsion rubber core in the present utility model;

[0016] Figure 3 is the front view of the torsion rubber core in the present utility model.

[0017] In the figure, 1. Thrust rod housing, 2. Pin shaft, 201. Spherical part, 202. Screw hole, 3. Cross-shaped steel connecting rod, 4. Torsion rubber core, 5. Shaft body housing, 501. Bearing housing, 502. Sheath, 5021. Iron sleeve, 5022. Polyurethane sleeve, 503. Dust-proof rubber cover, 5031. Dust-proof rubber sleeve, 5032. Iron pad. Detailed Embodiments

[0018] The present utility model will be further explained and illustrated below in conjunction with the drawings and specific embodiments. Embodiment

[0019] As Figure 1 、 Figure 2 and Figure 3As shown in the figure, a forging integrated thrust rod assembly disclosed by the utility model includes a thrust rod housing 1. The thrust rod housing 1 is integrally forged and formed. In the middle of the thrust rod housing 1 is a cross-shaped steel connecting rod 3. The cross-shaped steel is not easy to deform and break. Installation holes are provided at both ends of the thrust rod housing 1. A torsion rubber core 4 is arranged in the installation holes. A snap ring installation position is arranged at the top of the torsion rubber core 4. A snap ring can be installed at the snap ring installation position, so that the torsion rubber core 4 is further stabilized and the fatigue life is increased. The torsion rubber core 4 is filled with grease. The torsion rubber core 4 includes a shaft body shell 5 and a pin shaft 2. The shaft body shell 5 is sleeved outside the pin shaft 2. The middle part of the pin shaft 2 is a spherical part 201. Screw holes 202 are provided at both ends of the pin shaft 2. The pin shaft 2 can rotate freely at an angle;

[0020] The shaft body shell 5 includes a bearing shell 501. The bearing shell 501 is sleeved at the position of the spherical part 201. A sheath 502 is sleeved outside the bearing shell 501. Dust-proof rubber covers 503 are movably connected to both ends of the sheath 502. The dust-proof rubber covers 503 can effectively prevent impurities from entering the torsion rubber core 4. The dust-proof rubber covers 503 are sleeved outside the pin shaft 2;

[0021] The dust-proof rubber cover 503 includes a dust-proof rubber sleeve 5031 and an iron pad 5032. The iron pad 5032 is sleeved outside the dust-proof rubber sleeve 5031. The iron pad 5032 and the dust-proof rubber sleeve 5031 are vulcanized and bonded together to form an integral structure.

[0022] The sheath 502 includes an iron sleeve 5021 and a polyurethane sleeve 5022. The polyurethane sleeve 5022 is sleeved outside the iron sleeve 5021. The iron sleeve 5021 and the polyurethane sleeve 5022 are vulcanized and bonded together to form an integral structure.

[0023] A groove covering the protrusion of the spherical part 201 is provided on the inner surface of the bearing shell 501.

[0024] The screw hole 202 can be either a single hole or a multi-hole, and can be selected correspondingly according to the vehicle loading needs.

[0025] During the vehicle loading operation, the pin shaft 2 is a rotatable structure. Therefore, the pin shaft 2 can be rotated, and the screw hole 202 can be rotated to a suitable position for connection.

[0026] Due to the use of a variable cross-section structure, the weight of the thrust rod assembly can be reduced by about 15%. The rotary torsion rubber core is used to replace the traditional rubber rubber core, avoiding the situation that it cannot be rotated during vehicle loading and is not easy to load the vehicle. At the same time, the disadvantages of fatigue aging of the traditional rubber rubber core are also overcome.

Claims

1. A forging integrated thrust rod assembly, characterized in that, It includes a thrust rod housing (1). In the middle of the thrust rod housing (1) is a cross-shaped steel connecting rod (3). Installation holes are provided at both ends of the thrust rod housing (1). A torsion rubber core (4) is arranged in the installation holes. A circlip installation position is provided at the top of the torsion rubber core (4). The torsion rubber core (4) includes a shaft body shell (5) and a pin shaft (2). The shaft body shell (5) is sleeved outside the pin shaft (2). The middle part of the pin shaft (2) is a spherical part (201). Screw holes (202) are provided at both ends of the pin shaft (2). The shaft body shell (5) includes a bearing shell (501). The bearing shell (501) is sleeved at the position of the spherical part (201). A sheath (502) is sleeved outside the bearing shell (501). Dust-proof rubber covers (503) are movably connected to both ends of the sheath (502). The dust-proof rubber covers (503) are sleeved outside the pin shaft (2). The dust-proof rubber cover (503) includes a dust-proof rubber sleeve (5031) and an iron pad (5032). The iron pad (5032) is sleeved outside the dust-proof rubber sleeve (5031).

2. The integrated forging thrust rod assembly according to claim 1, characterized in that, The sheath (502) includes an iron sleeve (5021) and a polyurethane sleeve (5022). The polyurethane sleeve (5022) is sleeved outside the iron sleeve (5021).

3. The integrated forged thrust rod assembly according to claim 1, characterized in that, A groove for covering the protrusion of the spherical part (201) is provided on the inner surface of the bearing shell (501).

4. A forging integrated thrust rod assembly according to claim 1, characterized in that, The screw hole (202) can be either a single hole or a multi-hole.

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