Trailer damping axle with lubricating structure
By introducing a lubrication structure into the damper, the problem of friction and jamming between the sleeve and the rod is solved, achieving a smooth connection of the damper and improving the shock absorption effect and service life of the trailer axle.
Patent Information
- Application Number
- CN202520472587.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-03-17
AI Technical Summary
The existing dampers do not have a lubrication mechanism during the shock absorption process, which leads to prolonged friction between the sleeve and the rod, causing jamming and affecting the shock absorption effect and service life of the trailer axle.
A lubrication structure was designed, including a collar, a nozzle, a container, a piston plate, a threaded rod, and a drive motor. The nozzle evenly sprays lubricant onto the outer wall of the damper rod, ensuring a smooth connection between the sleeve and the rod. The piston plate and threaded rod together enable the metered feeding of lubricant.
This improves the damping effect of the damper, avoids jamming between the sleeve and the rod, extends the service life of the damper, and ensures the stability and comfort of the trailer axle.
Smart Images

Figure CN223579638U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of damping axle, concretely is a trailer damping axle with lubricating structure. BACKGROUND
[0002] The damping axle of the trailer brake system is a kind of axle with damping function, i.e., damping components are arranged on the axle, and the damping components are mainly composed of damping springs and damper components, etc., in the process of vehicle driving, the damping axle can reduce the vibration and impact of trailer and other vehicles, and improve the stability and driving comfort of trailer and other vehicles.
[0003] The damper is mainly composed of a sleeve and a rod body, and the sleeve and the rod body are connected in an extendable and retractable manner, the damper generates resistance to the vibration of the damping spring, limits the excessive extension and retraction of the damping spring, thereby reducing the vibration amplitude and speed of the axle, further improving the damping effect, and making the vehicle driving more stable, but in the damping process, the sleeve and the rod body are continuously extended and retracted, causing continuous friction between the inner wall of the sleeve and the outer wall of the rod body, and the existing damper is not provided with a corresponding lubricating mechanism, so that the connection between the inner wall of the sleeve and the outer wall of the rod body is jammed after a long time of friction, thereby affecting the damping effect of the damper on the trailer axle, and also shortening the service life of the damper, in view of the deficiencies of the prior art, the present utility model provides a trailer damping axle with lubricating structure to solve the above problems. SUMMARY
[0004] In view of the deficiencies of the prior art, the present utility model provides a trailer damping axle with lubricating structure to solve the above problems.
[0005] To achieve the above purposes, the utility model is implemented by the following technical solutions: a trailer damping axle with lubricating structure, comprising a trailer axle body, a mounting seat arranged on the outer wall of the trailer axle body, a connecting plate arranged on the top surface of the mounting seat, and a combined sleeve and rod body arranged on the top surface of the connecting plate, the outer wall of the rod body is sleeved with a damping spring, the side of the sleeve close to the rod body is provided with a lubricating mechanism, and the lubricating mechanism comprises:
[0006] A sleeve ring is fixedly arranged on the bottom surface of the sleeve, and the inner wall of the sleeve ring is provided with a plurality of nozzles corresponding to the outer wall of the rod body;
[0007] The connecting pipe is connected with the sleeve ring, and one end of the connecting pipe is provided with a containing cylinder for containing lubricant, and the containing cylinder is connected with the outer wall of the sleeve ring.
[0008] The piston plate is slidably arranged in the interior of the containing cylinder.
[0009] The threaded rod and the driving motor are combined, and the combined threaded rod and driving motor are used for regulating the position of the piston plate in the interior of the containing cylinder.
[0010] Preferably, one end of the threaded rod is rotatably arranged in the interior of the containing cylinder, and the top surface of the piston plate is fixedly provided with a sealing threaded block which is threadedly connected with the outer wall of the threaded rod.
[0011] Preferably, the driving motor is arranged on the top surface of the containing cylinder, and the top surface of the containing cylinder is provided with a cover for protecting the driving motor.
[0012] Preferably, the bottom surface of the containing cylinder is provided with a feeding pipe, and the feeding pipe and one end of the connecting pipe are both provided with valves.
[0013] Preferably, the interior of the sleeve ring is provided with cavities for connecting the connecting pipe with multiple groups of spray heads.
[0014] Preferably, the inner diameter of the sleeve ring is larger than the diameter of the rod body.
[0015] Preferably, an extension frame is arranged between the top surface of the connecting plate and the bottom surface of the containing cylinder.
[0016] The utility model discloses a trailer shock absorbing axle with lubricating structure, which has the following beneficial effects: the trailer shock absorbing axle with lubricating structure is provided with a sleeve ring, a spray head and a containing cylinder, so that the lubricant in the containing cylinder can be uniformly sprayed on the outer wall of the damper rod body through the spray head, the connection between the outer wall of the damper rod body and the inner wall of the damper sleeve is smooth, the shock absorbing effect of the shock absorbing component at the trailer axle is ensured, and the situation of jamming during the extension and contraction of the damper is avoided. In combination with a piston plate, a threaded rod and a driving motor, the quantitative feeding of the lubricant can be completed, and the utility is good. ACCURACY OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.
[0018] Figure 1 It is a whole structure schematic view of the utility model.
[0019] Figure 2 It is the mounting seat, rod body and sleeve connection structure schematic view of the utility model;
[0020] Figure 3 It is the rod body, sleeve and lubricating mechanism connection structure schematic view of the utility model;
[0021] Figure 4 It is the sleeve ring and holding cylinder internal structure section view of the utility model;
[0022] Figure 5 It is the sleeve ring and shower head connection structure schematic view of the utility model;
[0023] Figure 6 It is the holding cylinder and piston plate connection structure schematic view of the utility model.
[0024] In the drawing: 1, trailer axle body; 2, mounting seat; 21, connecting plate; 3, sleeve; 31, rod body; 4, shock absorber spring; 5, lubricating mechanism; 51, sleeve ring; 511, cavity; 52, shower head; 53, connecting pipe; 54, holding cylinder; 541, feeding pipe; 55, piston plate; 551, sealing threaded block; 56, threaded rod; 57, drive motor; 571, cover; 6, valve; 7, telescopic support. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model is clearly and completely described, obviously, the described embodiments are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.
[0026] The trailer shock absorber axle with lubricating structure provided in the application solves the problem that the sleeve and the rod body are continuously stretched and contracted during the shock absorption process, the inner wall of the sleeve and the outer wall of the rod body are continuously rubbed, the corresponding lubricating mechanism is not arranged at the existing damper, the connection between the inner wall of the sleeve and the outer wall of the rod body is blocked under long-time friction, and the shock absorption effect of the damper is affected. The lubricating structure is arranged on the outer wall of the rod body, the lubricating structure is lubricated, the connection between the outer wall of the rod body and the inner wall of the sleeve is smooth, and the shock absorption effect of the damper is guaranteed.
[0027] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings of the specification and specific embodiments.
[0028] The utility model discloses a trailer shock absorber axle with lubricating structure.
[0029] According to the drawings Figures 1-6 As shown, including trailer axle body 1, set in the mounting seat 2 of trailer axle body 1 outer wall, set in the mounting seat 2 top surface connecting plate 21 and set in the connecting plate 21 top surface combination sleeve 3 and rod body 31, rod body 31 and sleeve 3 between the telescopic connection, rod body 31 one end slidingly disposed in the inside of sleeve 3, combination sleeve 3 and rod body 31 for damper, the outer wall of rod body 31 is sleeved with damping spring 4, mounting seat 2, connecting plate 21, sleeve 3, rod body 31 and damping spring 4 and other components constitute damping assembly, damping assembly is arranged between trailer axle body 1 and trailer, trailer is not specifically drawn in the drawings, specifically, the both ends of trailer axle body 1 are connected with trailer wheel, when trailer runs on uneven road, the wheel will be subjected to impact force from the road, these impact forces are transmitted to the damping assembly through the trailer axle body 1, so that the damping spring 4 will be elastically deformed, absorb a part of the vibration energy, the impact force is converted into the elastic potential energy of spring, thereby slowing down the transmission of vibration, at the same time, the damper will generate resistance to the vibration of damping spring 4, limit the excessive expansion of damping spring 4, convert the elastic potential energy of damping spring 4 into heat energy and dissipate, make the vibration of vehicle decay rapidly, avoid the vehicle to appear long time shaking or jolt.
[0030] According to the drawings Figures 2-6 The side of sleeve 3 close to rod body 31 is provided with lubricating mechanism 5, through the setting of lubricating mechanism 5, the connecting position of sleeve 3 and rod body 31 can be lubricated, so that the smoothness of sleeve 3 and rod body 31 in the process of extension and contraction is better, thereby ensuring that it effectively protects the trailer axle body 1, lubricating mechanism 5 includes sleeve ring 51, the bottom surface of sleeve ring 51 is fixedly provided with a plurality of nozzles 52 corresponding to the outer wall of rod body 31, referring to the drawings Figure 5 The inner diameter of sleeve ring 51 is greater than the diameter of rod body 31, the end of a plurality of nozzles 52 extending to the outside of sleeve ring 51 is not in contact with the outer wall of rod body 31, connecting pipe 53 is connected with sleeve ring 51, and the other end of connecting pipe 53 is provided with containing cylinder 54 for containing lubricant, containing cylinder 54 is connected with the outer wall of sleeve 3, the inside of sleeve ring 51 is provided with cavity 511 for connecting pipe 53 and a plurality of nozzles 52 to communicate, specifically, sleeve 3 and rod body 31 in the process of extension and contraction, sleeve ring 51 and the nozzles 52 arranged at sleeve ring 51 will move equally with sleeve 3, that is, a plurality of nozzles 52 arranged at sleeve ring 51 will be close to different parts of rod body 31, and in the process of close, nozzles 52 can spray the lubricant in containing cylinder 54 to the outer wall of rod body 31, thereby making the connection between the outer wall of rod body 31 and the inner wall of sleeve 3 have higher smoothness, so as to improve the damping effect of sleeve 3 and rod body 31.
[0031] According to the drawings Figure 6The bottom surface of the containing cylinder 54 is provided with a feeding pipe 541, through which the lubricant can be regularly fed into the containing cylinder 54. The feeding pipe 541 and one end of the connecting pipe 53 are both provided with a valve 6, through which the opening and closing of the feeding pipe 541 and the connecting pipe 53 and the flow rate can be controlled.
[0032] Referring to the drawings Figure 6 The piston plate 55 is slidably arranged in the containing cylinder 54, and the threaded rod 56 and the driving motor 57 are combined, and the combined threaded rod 56 and driving motor 57 are used for regulating the position of the piston plate 55 in the containing cylinder 54. One end of the threaded rod 56 is rotatably arranged in the containing cylinder 54, and the top surface of the piston plate 55 is fixedly provided with a sealing threaded block 551 which is threadedly connected with the outer wall of the threaded rod 56. The driving motor 57 is arranged on the top surface of the containing cylinder 54, and the top surface of the containing cylinder 54 is provided with a cover 571 for protecting the driving motor 57. Specifically, when the lubricant in the containing cylinder 54 is delivered into the sleeve ring 51, the driving motor 57 is controlled to rotate the threaded rod 56 in the forward direction, so that the piston plate 55 is driven to move downward under the action of the thread connection between the threaded rod 56 and the sealing threaded block 551. Thus, under the action of the pressure, the lubricant in the containing cylinder 54 enters the sleeve ring 51 through the connecting pipe 53, and then is sprayed on the outer wall of the rod body 31 through the spray head 52. Conversely, the driving motor 57 is controlled to rotate the threaded rod 56 in the reverse direction, so that the piston plate 55 is driven to move upward under the action of the thread connection between the threaded rod 56 and the sealing threaded block 551. Thus, under the action of the suction force, the feeding pipe 541 sucks the lubricant into the containing cylinder 54, and then the lubricant is replenished.
[0033] Referring to the drawings Figure 3 The top surface of the connecting plate 21 and the bottom surface of the containing cylinder 54 are provided with an extension frame 7, so that when the containing cylinder 54 moves up and down along with the sleeve 3, the extension frame 7 can limit and support the movement path of the containing cylinder 54, thereby increasing the overall stability of the containing cylinder 54.
[0034] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A trailer damping axle with lubricating structure, comprising a trailer axle body (1), a mounting seat (2) arranged on the outer wall of the trailer axle body (1), a connecting plate (21) arranged on the top surface of the mounting seat (2), and a combined sleeve (3) and a rod body (31) arranged on the top surface of the connecting plate (21), the outer wall of the rod body (31) is sleeved with a damping spring (4), characterized in that, The sleeve (3) is provided with a lubricating mechanism (5) near one side of the rod body (31), and the lubricating mechanism (5) comprises: A sleeve ring (51) is fixedly arranged on the bottom surface of the sleeve (3), and the inner wall of the sleeve ring (51) is provided with a plurality of nozzles (52) corresponding to the outer wall of the rod body (31); A connecting pipe (53) is connected with the sleeve ring (51), and the other end of the connecting pipe (53) is provided with a containing cylinder (54) for containing lubricant, and the containing cylinder (54) is connected with the outer wall of the sleeve (3); A piston plate (55) is slidingly arranged in the containing cylinder (54); A threaded rod (56) and a driving motor (57) are combined, and the combined threaded rod (56) and driving motor (57) are used for controlling the position of the piston plate (55) in the containing cylinder (54).
2. A damped trailer axle with lubrication arrangement according to claim 1, characterized in that One end of the threaded rod (56) is rotatably arranged in the containing cylinder (54), and the top surface of the piston plate (55) is fixedly provided with a sealing threaded block (551) threadedly connected with the outer wall of the threaded rod (56).
3. A damped trailer axle with lubrication arrangement according to claim 2, characterized in that: The driving motor (57) is arranged on the top surface of the containing cylinder (54), and the top surface of the containing cylinder (54) is provided with a cover (571) for protecting the driving motor (57).
4. A damped trailer axle with lubrication arrangement according to claim 3, characterized in that: The bottom surface of the containing cylinder (54) is provided with a feeding pipe (541), and the feeding pipe (541) and one end of the connecting pipe (53) are both provided with a valve (6).
5. The damped trailer axle with lubrication features of claim 1, wherein: The inside of the sleeve ring (51) is provided with a cavity (511) for connecting the connecting pipe (53) and the plurality of nozzles (52) in communication.
6. A damped trailer axle with lubrication arrangement according to claim 5, characterized in that: The inner diameter of the sleeve ring (51) is greater than the diameter of the rod body (31).
7. The damped trailer axle with lubrication features of claim 1, wherein: The top surface of the connecting plate (21) and the bottom surface of the containing cylinder (54) are provided with an expansion frame (7).