Friction welding thrust rod

Abstract

The utility model discloses a friction welding thrust rod, which belongs to the technical field of thrust rods and comprises a connecting rod, a rod head is arranged at one end of the connecting rod, a connecting portion is arranged at the position, opposite to the connecting rod, of the rod head, the surface of the connecting portion is in friction welding with one end of the rod head, and the outer surface of the other end of the connecting rod is arranged in a thread shape. Cavities are formed in the connecting rods, reinforcing structures are arranged in the inner cavities of the connecting rods, hollow steel pipes are arranged at the opposite positions of the two connecting rods, positioning structures are arranged on the outer surfaces of the hollow steel pipes, and the inner cavities of the hollow steel pipes are arranged in a threaded mode. And an inner cavity of the hollow steel pipe is in threaded connection with the outer surface of the connecting rod, so that the working stability of the thrust rod is improved, the working quality of the thrust rod is improved, the length of the thrust rod can be adjusted, and the mounting range of the thrust rod is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of thrust rods, in particular to a friction welding thrust rod. Background Art

[0002] Thrust rods are mainly used in single-axle or double-rear-axle heavy-duty vehicles with non-independent suspension of trucks or buses, connecting the frame and the axle. Their main purpose is to overcome the problem that leaf springs can only transmit vertical force and lateral force but cannot transmit traction, braking force and their corresponding reaction torque. At present, various types of thrust rods are widely used in trucks and buses produced by major domestic OEMs. In the process of thrust rod processing and production, friction welding is usually used to weld the rod head and the connecting rod.

[0003] The existing friction welding thrust rod cannot be adjusted in length after friction welding. When installed on axles of different sizes, thrust rods of different lengths need to be replaced for installation, resulting in a reduction in the installation range of the thrust rod. At the same time, the thrust rod is only connected by a connecting rod, which makes it easy for the connecting rod to break when subjected to force, resulting in a decrease in the stability of the thrust rod during operation and a reduction in the working efficiency of the thrust rod.

[0004] According to the publication number: CN217475084U, a friction welding thrust rod includes a connecting rod and a rod head connected to the end of the connecting rod, the connecting end of the connecting rod and the tail of the rod head is partially thickened, the inner diameter of the end of the connecting rod is smaller than the inner diameter of the middle section, and the outer diameter of the end is larger than the outer diameter of the middle section. The friction welding thrust rod of the utility model increases the friction welding area by shortening the length of the tail of the rod head, and locally thickens the connecting end of the connecting rod and the rod head, thereby avoiding the problem of fracture at the friction welding point between the rod head and the connecting rod, and prolonging the service life of the overall thrust rod, meeting the use demand in the market.

[0005] According to the thrust rod introduced above, the length of the thrust rod cannot be adjusted after friction welding. When installed on axles of different sizes, thrust rods of different lengths need to be replaced for installation, resulting in a decrease in the installation range of the thrust rod. At the same time, the thrust rod is only connected by a connecting rod, which makes it easy for the connecting rod to break when subjected to force, resulting in a decrease in the stability of the thrust rod during operation and a decrease in the working efficiency of the thrust rod. Therefore, we need to propose a friction welded thrust rod. Utility Model Content

[0006] The utility model aims to provide a friction welding thrust rod, which is threadedly connected to the outer surfaces of two groups of connecting rods through the inner cavity of a hollow steel pipe, so that the distance between the two groups of connecting rods can be adjusted by rotating the hollow steel pipe. After the distance between the two groups of connecting rods is adjusted, they are positioned by a positioning structure, and the contact surface with the connecting rod is increased by setting the connecting part, and the welding part is reinforced. The connecting rod is reinforced by setting the reinforcement structure, so that the length of the thrust rod can be adjusted, the installation range of the thrust rod is expanded, the thrust rod is reinforced, the stability of the thrust rod during operation is improved, and the working quality of the thrust rod is improved, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a friction welding thrust rod, comprising a connecting rod, a rod head is provided at one end of the connecting rod, a connecting portion is provided at a position where the rod head and the connecting rod face each other, the surface of the connecting portion is friction welded to one end of the rod head, the outer surface of the other end of the connecting rod is threaded, a cavity is provided inside the connecting rod, a reinforcement structure for reinforcing the connecting rod is provided in the inner cavity of the connecting rod, two groups of connecting rods are provided, hollow steel pipes are provided at positions where the two groups of connecting rods face each other, a positioning structure for positioning the hollow steel pipe on the connecting rod is provided on the outer surface of the hollow steel pipe, the inner cavity of the hollow steel pipe is threaded, and the inner cavity of the hollow steel pipe is threadedly connected to the outer surface of the connecting rod.

[0008] Preferably, an extension rod is integrally formed at the center of the connecting portion, the outer surface of the extension rod fits with the inner cavity of the connecting rod, and the outer surface of the extension rod and the inner cavity of the connecting rod are friction welded.

[0009] Preferably, the reinforcement structure includes a steel ring, which is located in the inner cavity of the connecting rod, and the outer surface of the steel ring is fixedly connected to the inner cavity of the connecting rod. A through hole is opened on the surface of the steel ring, and a reinforcing rod is inserted and fixed in the inner cavity of the through hole. The reinforcing rods are provided in several groups, and the several groups of reinforcing rods are distributed on the surface of the steel ring around the center of a circle.

[0010] Preferably, the steel rings are arranged in several groups, and the steel rings in several groups are arranged at equal distances in the inner cavity of the connecting rod, and the steel rings in several groups are connected by reinforcing rods.

[0011] Preferably, the positioning structure includes a positioning hole, which is opened on the surface of the hollow steel pipe. A threaded hole is opened at a position on the surface of the positioning hole corresponding to the surface of the connecting rod. The positioning hole is provided with a fastening bolt, and the outer surface of the fastening bolt is threadedly connected to the inner cavity of the threaded hole.

[0012] Preferably, the threaded holes are arranged in a plurality of groups, and the threaded holes in the plurality of groups are arranged at equal distances on the outer surface of the connecting rod.

[0013] Preferably, both ends of the surface of the hollow steel pipe are bonded with anti-skid rubber pads, and the surface of the anti-skid rubber pads is provided with anti-skid particles.

[0014] Preferably, the connecting portion is circular in shape, and the diameter of the connecting portion is greater than the diameter of the connecting rod.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides a friction welding thrust rod. By setting a connecting part, the contact surface between the connecting part and the connecting rod is increased, the welding range is increased, the welding position between the connecting part and the connecting rod is reinforced by an extension rod, and a plurality of groups of steel rings are supported on the inner cavity of the connecting rod by setting a reinforcement structure. By setting a reinforcing rod, the reinforcing effect of the steel ring on the connecting rod is improved, the thrust rod is reinforced, thereby improving the stability of the thrust rod during operation and improving the working quality of the thrust rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the decomposed structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the utility model from a top view;

[0020] Figure 4 It is a structural schematic diagram of a local cross-sectional structure of the utility model.

[0021] In the figure: 1. connecting rod; 2. rod head; 3. connecting part; 4. reinforcement structure; 41. steel ring; 42. reinforcing rod; 5. hollow steel pipe; 6. positioning structure; 61. positioning hole; 62. threaded hole; 63. fastening bolt; 7. extension rod; 8. anti-slip rubber pad. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4The utility model provides a technical solution: a friction welding thrust rod, comprising a connecting rod 1, a rod head 2 is arranged at one end of the connecting rod 1, a connecting portion 3 is arranged at a position facing the rod head 2 and the connecting rod 1, the surface of the connecting portion 3 is friction welded with one end of the rod head 2, the outer surface of the other end of the connecting rod 1 is threaded, a cavity is opened inside the connecting rod 1, a reinforcing structure 4 for reinforcing the connecting rod 1 is arranged in the inner cavity of the connecting rod 1, two groups of connecting rods 1 are arranged, hollow steel pipes 5 are arranged at positions facing each other, a positioning structure 6 for positioning the hollow steel pipe 5 on the connecting rod 1 is arranged on the outer surface of the hollow steel pipe 5, the inner cavity of the hollow steel pipe 5 is threaded, and the inner cavity of the hollow steel pipe 5 is threadedly connected to the outer surface of the connecting rod 1,

[0024] The inner cavity of the hollow steel pipe 5 is threadedly connected to the outer surfaces of the two groups of connecting rods 1, so that the distance between the two groups of connecting rods 1 can be adjusted by rotating the hollow steel pipe 5. After the distance between the two groups of connecting rods 1 is adjusted, they are positioned by the positioning structure 6. By setting the connecting part 3, the contact surface with the connecting rod 1 is increased, and the welding part is reinforced. By setting the reinforcement structure 4, the connecting rod 1 is reinforced, so that the length of the thrust rod can be adjusted, the installation range of the thrust rod is expanded, the thrust rod is reinforced, the stability of the thrust rod during operation is improved, and the working quality of the thrust rod is improved.

[0025] An extension rod 7 is integrally formed at the center of the connecting part 3, and the outer surface of the extension rod 7 fits with the inner cavity of the connecting rod 1. The outer surface of the extension rod 7 is friction-welded to the inner cavity of the connecting rod 1. The extension rod 7 is inserted into the inner cavity of the connecting rod 1 and is friction-welded to the inside of the connecting rod 1 to reinforce the welding point between the connecting rod 1 and the connecting part 3.

[0026] The reinforcement structure 4 includes a steel ring 41, which is located in the inner cavity of the connecting rod 1. The outer surface of the steel ring 41 is fixedly connected to the inner cavity of the connecting rod 1. A through hole is opened on the surface of the steel ring 41, and a reinforcing rod 42 is inserted and fixed in the inner cavity of the through hole. The reinforcing rod 42 is arranged in several groups, and several groups of reinforcing rods 42 are distributed on the surface of the steel ring 41 around the center of the circle. The inner cavity of the connecting rod 1 is supported by the steel ring 41, and the steel ring 41 is reinforced by the reinforcing rod 42, thereby increasing the reinforcement effect of the steel ring 41 on the connecting rod 1.

[0027] There are several groups of steel rings 41, which are arranged at equal distances in the inner cavity of the connecting rod 1. The several groups of steel rings 41 are connected by reinforcing rods 42. By setting several groups of steel rings 41, the reinforcement range of the inner cavity of the connecting rod 1 by the steel rings 41 is increased.

[0028] The positioning structure 6 includes a positioning hole 61, which is opened on the surface of the hollow steel pipe 5. A threaded hole 62 is opened at a position on the surface of the positioning hole 61 corresponding to the surface of the connecting rod 1. The positioning hole 61 is provided with a fastening bolt 63, and the outer surface of the fastening bolt 63 is threadedly connected with the inner cavity of the threaded hole 62. The fastening bolt 63 is inserted into the positioning hole 61. Through the threaded connection between the fastening bolt 63 and the threaded hole 62, the fastening bolt 63 can be rotated to enter the inner cavity of the threaded hole 62, so as to position the position of the hollow steel pipe 5 on the two sets of connecting rods 1.

[0029] There are several groups of threaded holes 62 , which are arranged at equal distances on the outer surface of the connecting rod 1 . Through the arrangement of the threaded holes 62 , the hollow steel pipe 5 can be adjusted to multiple positions on the connecting rod 1 .

[0030] Anti-skid rubber pads 8 are bonded to both ends of the surface of the hollow steel pipe 5, and the surface of the anti-skid rubber pads 8 is provided with anti-skid particles. The setting of the anti-skid rubber pads 8 increases the friction force on the surface of the hollow steel pipe 5, making it convenient for the staff to rotate the hollow steel pipe 5 and adjust the length of the thrust rod.

[0031] The connecting part 3 is circular in shape, and its diameter is larger than that of the connecting rod 1. By setting the connecting part 3, the contact surface between the connecting part 3 and the connecting rod 1 is increased, and the friction welding area between the connecting rod 1 and the connecting part 3 is increased, so that the welding point is reinforced.

[0032] When used specifically: during welding, take the rod head 2 and insert the extension rod 7 into the inner cavity of the connecting rod 1, so that the connecting part 3 and one end of the connecting rod 1 are fitted together for friction welding. By setting the connecting part 3, the contact surface between the connecting part 3 and the connecting rod 1 is increased, and the friction welding area between the connecting rod 1 and the connecting part 3 is increased, and the welding part is reinforced. The welding part between the connecting rod 1 and the connecting part 3 is reinforced again by the extension rod 7. Several groups of steel rings 41 support the inner cavity of the connecting rod 1. By setting the reinforcing rod 42, the reinforcing effect of the steel ring 41 on the connecting rod 1 is improved, and the thrust rod is reinforced;

[0033] When adjusting the length of the thrust rod, the inner cavity of the hollow steel pipe 5 is threadedly connected to the outer surfaces of the two groups of connecting rods 1, so that the hollow steel pipe 5 can be rotated to adjust the distance between the two groups of connecting rods 1. After adjusting the distance between the two groups of connecting rods 1, the fastening bolt 63 is inserted into the positioning hole 61, and the fastening bolt 63 is threadedly connected to the threaded hole 62, so that the fastening bolt 63 can be rotated to enter the inner cavity of the threaded hole 62, and the position of the hollow steel pipe 5 on the two groups of connecting rods 1 is positioned to achieve the adjustment of the length of the thrust rod, so that the length of the thrust rod can be adjusted, the installation range of the thrust rod is expanded, the stability of the thrust rod during operation is improved, and the working quality of the thrust rod is improved.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Friction welding thrust rod, characterized in that: include: A connecting rod (1), wherein a rod head (2) is provided at one end of the connecting rod (1), a connecting portion (3) is provided at a position where the rod head (2) and the connecting rod (1) face each other, a surface of the connecting portion (3) is friction welded to one end of the rod head (2), and an outer surface of the other end of the connecting rod (1) is arranged in a threaded shape; A cavity is provided inside the connecting rod (1), the inner cavity of the connecting rod (1) is provided with a reinforcement structure (4) for reinforcing the connecting rod (1), the connecting rod (1) is provided with two groups, and hollow steel pipes (5) are provided at positions facing each other of the two groups of connecting rods (1); A positioning structure (6) is arranged on the outer surface of the hollow steel pipe (5) for locating the position of the hollow steel pipe (5) on the connecting rod (1); the inner cavity of the hollow steel pipe (5) is threadedly arranged, and the inner cavity of the hollow steel pipe (5) is threadedly connected to the outer surface of the connecting rod (1).

2. The friction welding thrust rod according to claim 1, characterized in that: An extension rod (7) is integrally formed at the center of the connecting portion (3); the outer surface of the extension rod (7) fits the inner cavity of the connecting rod (1); and the outer surface of the extension rod (7) and the inner cavity of the connecting rod (1) are friction welded.

3. The friction welding thrust rod according to claim 1, characterized in that: The reinforcement structure (4) comprises a steel ring (41), wherein the steel ring (41) is located in the inner cavity of the connecting rod (1), and the outer surface of the steel ring (41) is fixedly connected to the inner cavity of the connecting rod (1). A through hole is provided on the surface of the steel ring (41), and a reinforcing rod (42) is inserted and fixed in the inner cavity of the through hole. The reinforcing rod (42) is provided in a plurality of groups, and the plurality of groups of reinforcing rods (42) are distributed on the surface of the steel ring (41) around the center of a circle.

4. The friction welding thrust rod according to claim 3, characterized in that: The steel rings (41) are arranged in a plurality of groups, and the plurality of groups of steel rings (41) are arranged at equal distances in the inner cavity of the connecting rod (1), and the plurality of groups of steel rings (41) are connected via a reinforcing rod (42).

5. The friction welding thrust rod according to claim 1, characterized in that: The positioning structure (6) comprises a positioning hole (61), wherein the positioning hole (61) is formed on the surface of the hollow steel pipe (5), a threaded hole (62) is formed on the surface of the positioning hole (61) at a position corresponding to the surface of the connecting rod (1), and a fastening bolt (63) is provided in the positioning hole (61), wherein the outer surface of the fastening bolt (63) is threadedly connected to the inner cavity of the threaded hole (62).

6. The friction welding thrust rod according to claim 5, characterized in that: The threaded holes (62) are arranged in a plurality of groups, and the threaded holes (62) are arranged at equal distances on the outer surface of the connecting rod (1).

7. The friction welding thrust rod according to claim 1, characterized in that: Anti-skid rubber pads (8) are bonded to both ends of the surface of the hollow steel pipe (5), and anti-skid particles are arranged on the surface of the anti-skid rubber pads (8).

8. The friction welding thrust rod according to claim 1, characterized in that: The connecting portion (3) is circular in shape, and the diameter of the connecting portion (3) is greater than the diameter of the connecting rod (1).

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