Loading anti-fatigue hanging spring

Abstract

The utility model discloses a loading anti-fatigue hanging spring, which relates to the technical field of hanging springs and comprises a double-layer spring mechanism, a damping spring support is fixedly arranged on one side of the double-layer spring mechanism, and hook parts are in threaded connection with two ends of the double-layer spring mechanism. The lifting hook spring solves the problem that elasticity of an existing lifting hook spring is provided through a single spring body, and the elasticity of the spring body is gradually weakened, through the arrangement of the double-layer spring mechanism, the middle table is arranged in the middle of the whole lifting hook spring, and the built-in spring and the external plate are arranged in mirror symmetry about the middle table; two sets of springs are used for replacing an original single spring to prevent stress from being excessively concentrated, through the arrangement of a damping spring frame, a sleeving rod and a sleeve rod are connected in a sleeving mode, and the springs are prevented from being extruded or stretched excessively, according to the design, the hanging spring structure is improved, the combination of the two sets of built-in springs is adopted, and the damping spring frame is arranged inside and outside in a grading mode; and the anti-fatigue performance of the hanging spring is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of suspension springs, in particular to a loaded fatigue-resistant suspension spring. Background Art

[0002] Suspension spring, also known as suspension spring or hanging spring, is a component made of elastic material. Its main function is to withstand and reduce the impact, vibration and displacement of mechanical equipment and components during movement. Suspension springs are widely used in transportation vehicles such as automobiles, trains, ships, airplanes, and various mechanical equipment.

[0003] A hook spring with publication number CN219655141U comprises a spring body, a top plate and a control box; a connecting plate is arranged at the bottom of the spring body, a tension detection module is arranged at the bottom of the connecting plate, a hanging plate is arranged at the bottom of the tension detection module, and a hook is arranged at the bottom of the hanging plate; the top plate is arranged at the top of the spring body, a vertical plate is arranged at the top of the top plate, a threaded sleeve is arranged on one side of the vertical plate, a threaded rod is arranged in the inner cavity of the threaded sleeve, a locking knob is arranged at one end of the threaded rod, and a locking knob is arranged at the other end of the threaded rod. The splint; the control box is arranged on one side of the connecting plate; the structure is reasonable, and it is convenient to install and disassemble during use, with good stability and high safety. At the same time, it has a tension detection function to ensure safety during use. However, this hook spring provides elasticity through a single spring body. As the use time increases, the hanging spring produces excessive stress concentration during operation, and the elasticity of the spring body will gradually weaken, resulting in reduced buffering and shock absorption effects. At the same time, during repeated loading and unloading, the hanging spring is prone to fatigue damage or even breakage, which affects safety in use.

[0004] In view of the above problems, a loaded fatigue-resistant suspension spring is proposed. Utility Model Content

[0005] The utility model aims to provide a loaded fatigue-resistant hanging spring, which solves the problem that the existing hook spring in the background technology provides elasticity through a single spring body. As the use time increases, the hanging spring produces excessive stress concentration during operation, and the elasticity of the spring body will gradually weaken, resulting in reduced buffering and shock absorption effects. At the same time, during repeated loading and unloading, the hanging spring is prone to fatigue damage or even breakage, thereby affecting the safety of use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a loaded fatigue-resistant suspension spring, comprising a double-layer spring mechanism, a shock-absorbing spring frame for sharing stress is fixedly arranged on one side of the double-layer spring mechanism, hooks are threadedly connected at both ends of the double-layer spring mechanism, four groups of shock-absorbing spring frames are arranged in a circular array about the center of the double-layer spring mechanism, the double-layer spring mechanism comprises a central platform, an inner spring fixedly arranged on the upper and lower ends of the central platform, an external plate connected to one end of the inner spring, four groups of shock-absorbing spring frames are connected between two groups of external plates, the shock-absorbing spring frame comprises a sleeve rod connected to the external plate, a sleeve rod sleeved with the sleeve rod, an internal pressure spring is arranged in the sleeve rod, and a sleeve spring is sleeved outside the sleeve rod.

[0007] Preferably, side panels are fixed around the central platform, and four groups of side panels are provided.

[0008] Preferably, a vent hole is provided at a position of the external plate corresponding to the shock-absorbing spring frame, and a threaded connection hole is provided at the center of the external plate.

[0009] Preferably, limit blocks are provided at both ends of the sleeve rod.

[0010] Preferably, an opening is provided in the sleeve rod for allowing the limit block to move.

[0011] Preferably, the sleeve spring and the sleeve rod have the same radius, and the internal pressure spring and the sleeve spring have the same radius.

[0012] Preferably, the hook members are provided in two groups, and the hook members include an external hook and a threaded rod fixedly connected to the external hook.

[0013] Preferably, the hook member further comprises a hexagonal nut threadedly sleeved on the threaded rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model provides a loaded fatigue-resistant hanging spring. Through the setting of a double-layer spring mechanism, a central platform is set in the middle of the whole. The internal spring and the external plate are set in mirror symmetry with respect to the central platform. Two groups of springs are used to replace the original single spring to prevent excessive stress concentration. The problem that the existing hook spring provides elasticity through a single spring body, and as the use time increases, the hanging spring generates excessive stress concentration during operation, and the elasticity of the spring body gradually weakens, resulting in reduced buffering and shock absorption effects.

[0016] 2. The utility model provides a loaded fatigue-resistant hanging spring. Through the setting of a shock-absorbing spring frame, the sleeve rod and the sleeve rod are sleeved with each other to prevent the spring from being squeezed or stretched excessively and causing fatigue damage. The sleeve spring and the internal pressure spring provide elastic buffering force for the sleeve rod and the sleeve rod. This design improves the structure of the hanging spring, adopts a combination of two groups of built-in springs, and an internal and external graded setting of the shock-absorbing spring frame to reduce the stress fluctuation of the hanging spring during the loading process, thereby improving the fatigue resistance of the hanging spring, and solving the problem that the existing hook spring is prone to fatigue damage or even breakage during repeated loading and unloading, thereby affecting the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the shock-absorbing spring frame of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the external plate and the bent hook member of the utility model.

[0021] In the figure: 1. double-layer spring mechanism; 11. center platform; 111. side plate; 12. internal spring; 13. external plate; 131. vent hole; 132. threaded hole; 2. shock-absorbing spring frame; 21. sleeve rod; 211. limit block; 22. sleeve spring; 23. sleeve rod; 24. internal pressure spring; 3. hook piece; 31. external hook; 32. threaded rod; 33. hexagonal nut. 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] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0024] Combination Figure 1The utility model discloses a loaded fatigue-resistant suspension spring, comprising a double-layer spring mechanism 1, a damping spring frame 2 for sharing stress is fixedly arranged on one side of the double-layer spring mechanism 1, hooks 3 are threadedly connected at both ends of the double-layer spring mechanism 1, four groups of damping spring frames 2 are arranged in a circular array about the center of the double-layer spring mechanism 1, the double-layer spring mechanism 1 comprises a central platform 11, an inner spring 12 fixedly arranged at the upper and lower ends of the central platform 11, an outer plate 13 connected to one end of the inner spring 12, four groups of damping spring frames 2 are connected between two groups of outer plates 13, the damping spring frame 2 comprises a sleeve rod 23 connected to the outer plate 13, a sleeve rod 21 sleeved with the sleeve rod 23, an inner pressure spring 24 is arranged in the sleeve rod 23, and a sleeve spring 22 is sleeved outside the sleeve rod 21.

[0025] Specifically, the center platform 11 is arranged in the middle of the whole, the internal spring 12 and the external plate 13 are arranged in mirror symmetry with respect to the center platform 11, and two groups of springs are used instead of the original single spring to prevent excessive stress concentration. The sleeve rod 23 and the sleeve rod 21 are sleeved with each other to prevent the spring from being squeezed or stretched excessively and causing fatigue damage. The sleeve spring 22 and the internal pressure spring 24 provide elastic buffering force for the sleeve rod 21 and the sleeve rod 23. This design improves the suspension spring structure, adopts a combination of two groups of internal springs 12, and an internal and external graded setting of the shock-absorbing spring frame 2, which reduces the stress fluctuation of the suspension spring during loading, thereby improving the fatigue resistance of the suspension spring.

[0026] The utility model is further described below in conjunction with embodiments.

[0027] Embodiment 1:

[0028] Combination Figure 2 and Figure 3 Side plates 111 are fixed around the central platform 11. Four groups of side plates 111 are provided. The four groups of side plates 111 are used to fix the shock-absorbing spring frames 2. The side plates 111 are arranged at four corners and fixed to the four groups of shock-absorbing spring frames 2 in a one-to-one correspondence.

[0029] A vent hole 131 is provided at a position corresponding to the external plate 13 and the shock-absorbing spring frame 2, and a threaded hole 132 is provided at the center of the external plate 13. The vent hole 131 is a reserved air port for the sleeve rod 21 and the sleeve connecting rod 23 to be sleeved together, and the threaded hole 132 is used to connect the bent hook member 3.

[0030] Limit blocks 211 are provided at both ends of the sleeve rod 21 , and the limit blocks 211 can move along the sleeve connecting rod 23 to share the stress.

[0031] An opening is provided in the sleeve rod 23 for the limit block 211 to move, and the movement of the limit block 211 in the sleeve rod 23 is limited.

[0032] The sleeve spring 22 and the sleeve rod 23 have the same radius, the inner pressure spring 24 and the sleeve spring 22 have the same radius, and the inner pressure spring 24 and the sleeve spring 22 provide elastic force for the sleeve rod 21 and the sleeve rod 23 respectively.

[0033] Embodiment 2:

[0034] Combination Figure 4 There are two groups of hook members 3, the hook members 3 include an external hook 31, a threaded rod 32 fixedly connected to the external hook 31, and the threaded rod 32 is threadedly connected to the external plate 13 to fix the external hook 31.

[0035] The hook member 3 further comprises a hexagonal nut 33 which is threadedly sleeved on the threaded rod 32 . The provision of the hexagonal nut 33 enables the external hook 31 to be disassembled.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] 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. A loaded fatigue-resistant suspension spring, comprising a double-layer spring mechanism (1), characterized in that: A shock-absorbing spring frame (2) for sharing stress is fixedly arranged on one side of the double-layer spring mechanism (1), hook members (3) are threadedly connected to both ends of the double-layer spring mechanism (1), and four groups of shock-absorbing spring frames (2) are arranged in a circular array about the center of the double-layer spring mechanism (1); The double-layer spring mechanism (1) comprises a central platform (11), an internal spring (12) fixedly arranged at the upper and lower ends of the central platform (11), an external plate (13) connected to one end of the internal spring (12), four groups of shock-absorbing spring frames (2) connected between two groups of external plates (13), the shock-absorbing spring frame (2) comprising a sleeve rod (23) connected to the external plate (13), a sleeve rod (21) sleeved with the sleeve rod (23), an internal pressure spring (24) arranged inside the sleeve rod (23), and a sleeve spring (22) sleeved outside the sleeve rod (21).

2. A loaded fatigue-resistant suspension spring according to claim 1, characterized in that: Side panels (111) are fixed around the central platform (11), and four groups of side panels (111) are provided.

3. The loaded fatigue-resistant hanger spring according to claim 1, characterized in that: A vent hole (131) is provided at a position corresponding to the shock-absorbing spring frame (2) of the external plate (13), and a threaded connection hole (132) is provided at the center of the external plate (13).

4. The loaded fatigue-resistant hanger spring according to claim 1, characterized in that: Limiting blocks (211) are arranged at both ends of the sleeve rod (21).

5. The loaded fatigue-resistant hanger spring according to claim 1, characterized in that: An opening is provided in the sleeve connecting rod (23) for the limit block (211) to move.

6. The loaded fatigue-resistant hanger spring according to claim 1, characterized in that: The sleeve spring (22) and the sleeve rod (23) have the same radius, and the internal pressure spring (24) and the sleeve spring (22) have the same radius.

7. The loaded fatigue-resistant hanger spring according to claim 1, characterized in that: The hook members (3) are provided in two groups, and the hook members (3) include an external hook (31) and a threaded rod (32) fixedly connected to the external hook (31).

8. The loaded fatigue-resistant hanger spring according to claim 7, characterized in that: The hook member (3) further comprises a hexagonal nut (33) which is threadably sleeved on the threaded rod (32).

Images