Damping shock absorber compression valve seat based on powder metallurgy

Abstract

The utility model discloses a damping shock absorber compression valve seat based on powder metallurgy, and relates to the technical field of machine manufacturing. The shock absorber compression valve seat comprises a lower valve seat body, an upper valve seat body is fixedly connected to the top of the lower valve seat body, a buffering assembly and a reinforcing assembly are fixedly connected into the lower valve seat body, and a damping rod slides in a damping sleeve and is matched with the synergistic effect of a damping spring, a damping ring and a damping hole; external vibration energy can be converted into mechanical energy for movement of the damping rod and energy loss for flowing of fluid, when the damping rod is impacted, elastic deformation of the damping spring can preliminarily buffer vibration, the damping ring slides in the first damping hole to enable the fluid to flow in the hole channel to generate damping force, the vibration strength is further weakened, and the damping effect is improved. The influence of external vibration on the valve seat and connected equipment is reduced, the operation stability of the equipment is improved, and the firmness degree of connection between the upper valve seat and the lower valve seat is enhanced through clamping connection of the reinforcing block and the upper valve seat positioning groove.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, specifically to a damping shock absorber compression valve seat based on powder metallurgy. Background Technology

[0002] In many fields such as modern machinery, automobiles, and aerospace, damping shock absorbers play a vital role. They can reduce the vibration and impact generated during equipment operation, ensuring the stable operation and service life of the equipment. As one of the core components of damping shock absorbers, the performance of the compression valve seat directly affects the working effect of the entire shock absorber.

[0003] Traditional powder metallurgy damping shock absorber compression valve seats have many problems in practical applications. In terms of shock absorption, the buffer structure design of some valve seats is relatively simple, relying only on a single spring or rubber element for shock absorption. When subjected to large vibrations or impacts, it is difficult to effectively absorb and dissipate vibration energy, causing vibration to be transmitted to connected equipment, affecting the normal operation of the equipment, and even causing damage to equipment parts. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a damping shock absorber compression valve seat based on powder metallurgy, which solves the problem that when subjected to large vibrations or impacts, it is difficult to effectively absorb and dissipate vibration energy, resulting in vibration being transmitted to connected equipment.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a damping shock absorber compression valve seat based on powder metallurgy, including a lower valve seat, an upper valve seat fixedly connected to the top of the lower valve seat, and a buffer assembly and a reinforcement assembly fixedly connected inside the lower valve seat.

[0008] Preferably, the buffer assembly includes a damping sleeve, a damping rod slidably connected to the inner wall of the damping sleeve, a tray fixedly connected to the bottom of the damping sleeve, a damping spring fixedly connected to the bottom of the tray, a damping ring fixedly connected to the bottom of the damping rod, a first damping hole opened in the inner wall of the lower valve seat, a second damping hole opened inside the lower valve seat, a first damping hole slidably engaged with the damping ring opened in the inner wall of the lower valve seat, a guide groove corresponding to the damping groove opened on the hole wall of the first damping hole, a second damping hole communicating with the guide groove opened inside the lower valve seat, and the inner diameter of the second damping hole linearly decreasing from the inlet end to the outlet end, forming a damping coefficient gradient structure.

[0009] Preferably, the outer wall of the damping rod is slidably connected to the inner wall of the tray, and the outer wall of the damping ring is slidably connected to the first damping hole. When compressed, the damping rod moves downward, and the outer wall of the damping rod slides against the inner wall of the tray, generating friction. A damping spring is fixedly connected to the bottom of the tray to increase the buffering effect. The damping ring is fixedly connected to the bottom of the damping rod. When the damping rod moves downward, the damping ring slides against the inner wall of the first damping hole, generating friction and further improving the buffering effect.

[0010] Preferably, the reinforcing component includes a reinforcing block, the inner wall of the lower valve seat has a reinforcing hole, the inner wall of the reinforcing hole is slidably connected to a reinforcing rod, the top of the reinforcing rod is fixedly connected to an anti-detachment ring, and the outer wall of the reinforcing rod is fitted with a rubber ring.

[0011] Preferably, the outer wall of the reinforcing block is fixedly connected to the outer wall of the lower valve seat, and a positioning groove is provided at the bottom of the upper valve seat. The reinforcing block is engaged with the positioning groove. The reinforcing block can reinforce the valve seat and prevent shaking. When the upper valve seat and the lower valve seat are connected, the reinforcing block can play a role in positioning and sealing.

[0012] (III) Beneficial Effects

[0013] This invention provides a damping shock absorber compression valve seat based on powder metallurgy. It possesses the following features:

[0014] Beneficial effects:

[0015] (I) The damping shock absorber compression valve seat based on powder metallurgy, through the sliding of the damping rod in the damping sleeve, and the synergistic effect of the damping spring, damping ring and damping hole, can convert the external vibration energy into the mechanical energy of the damping rod movement and the energy loss of fluid flow. When subjected to impact, the elastic deformation of the damping spring can initially buffer the vibration, and the sliding of the damping ring in the first damping hole causes the fluid to flow in the channel to generate damping force, further weakening the vibration intensity, reducing the impact of external vibration on the valve seat and connected equipment, and improving the operational stability of the equipment.

[0016] (II) The damping shock absorber compression valve seat based on powder metallurgy enhances the firmness of the connection between the upper and lower valve seats through the snap-fit ​​of the reinforcing block and the positioning groove of the upper valve seat, as well as the combination of the reinforcing rod, the anti-detachment ring and the rubber ring. The reinforcing rod slides in the reinforcing hole to cooperate with the anti-detachment ring to prevent it from falling off. The rubber ring fills the gap and relieves stress concentration, disperses the impact of external force, and improves the overall structural strength of the valve seat, so that it can still maintain a good working condition under complex working conditions and reduce the risk of failure caused by structural instability. Attached Figure Description

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

[0018] Figure 2This is a schematic diagram of the upper valve seat of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the buffer assembly of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the reinforcing component of this utility model.

[0021] In the diagram: 1. Lower valve seat; 2. Upper valve seat; 3. Buffer assembly; 4. Reinforcing assembly; 31. Damping sleeve; 32. Damping rod; 33. Tray; 34. Damping spring; 35. Damping ring; 36. First damping hole; 37. Second damping hole; 41. Reinforcing block; 42. Reinforcing hole; 43. Anti-detachment ring; 44. Reinforcing rod; 45. Rubber ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a damping shock absorber compression valve seat based on powder metallurgy, including a lower valve seat 1, an upper valve seat 2 fixedly connected to the top of the lower valve seat 1, a buffer assembly 3 and a reinforcing assembly fixedly connected inside the lower valve seat 1, the buffer assembly 3 including a damping sleeve 31, a damping rod 32 slidably connected to the inner wall of the damping sleeve 31, a tray 33 fixedly connected to the bottom of the damping sleeve 31, a damping spring 34 fixedly connected to the bottom of the tray 33, and a damping ring 35 fixedly connected to the bottom of the damping rod 32. A first damping hole 36 is formed on the inner wall of the lower valve seat 1, and a second damping hole 37 is formed inside the lower valve seat 1. The first damping hole 36 slidably engages with the damping ring 35 on the inner wall of the lower valve seat 1. A guide groove corresponding to the damping groove is provided. A second damping hole 37 communicating with the guide groove is provided inside the lower valve seat 1. The inner diameter of the second damping hole 37 decreases linearly from the inlet end to the outlet end, forming a structure with a gradually changing damping coefficient. The outer wall of the damping rod 32 is slidably connected to the inner wall of the tray 33. The outer wall of the damping ring 35 is slidably connected to the first damping hole 36. When compressed, the damping rod 32 moves downward and the outer wall of the damping rod 32 slides against the inner wall of the tray 33, generating friction. A damping spring 34 is fixedly connected to the bottom of the tray 33 to increase the buffering effect. The damping ring 35 is fixedly connected to the bottom of the damping rod 32. When the damping rod 32 moves downward, the damping ring 35 slides against the inner wall of the first damping hole 36, generating friction, further improving the buffering effect.

[0024] The reinforcing component 4 includes a reinforcing block 41. A reinforcing hole 42 is provided on the inner wall of the lower valve seat 1. A reinforcing rod 44 is slidably connected to the inner wall of the reinforcing hole 42. An anti-detachment ring 43 is fixedly connected to the top of the reinforcing rod 44. A rubber ring 45 is sleeved on the outer wall of the reinforcing rod 44. The outer wall of the reinforcing block 41 is fixedly connected to the outer wall of the lower valve seat 1. A positioning groove is provided at the bottom of the upper valve seat 2. The reinforcing block 41 is engaged with the positioning groove. The reinforcing block 41 can reinforce the valve seat and prevent shaking. When the upper valve seat 2 is connected to the lower valve seat 1, the reinforcing block 41 can play a role in positioning and sealing.

[0025] When the damper vibrates under external pressure, the buffer assembly 3 begins to function. The damping rod 32 slides on the inner wall of the damping sleeve 31, and the external impact force is transmitted through the damping rod 32. The tray 33 slides on the outer wall of the damping rod 32, playing an auxiliary guiding role. At the same time, the damping spring 34 is compressed and deformed under pressure, absorbing part of the vibration energy through its own elastic deformation. As the damping rod 32 moves, the damping ring 35 slides in the first damping hole 36, forcing the fluid inside the damping sleeve 31 to flow through the first damping hole 36 and the second damping hole 37. The damping force generated by the fluid flowing in the holes further consumes the vibration energy, slows down the transmission of vibration, and thus achieves the buffering of vibration, reducing the impact of external vibration on the valve seat and related equipment.

[0026] Regarding the reinforcing component 4, the outer wall of the reinforcing block 41 is fixedly connected to the outer wall of the lower valve seat 1, and its top is engaged with the positioning groove at the bottom of the upper valve seat 2, achieving precise positioning and stable connection between the upper valve seat 2 and the lower valve seat 1. The reinforcing rod 44 slides within the reinforcing hole 42, and the anti-detachment ring 43 at the top prevents the reinforcing rod 44 from coming out of the reinforcing hole 42, ensuring the reliability of the reinforcing structure. The rubber ring 45 is fitted onto the outer wall of the reinforcing rod 44, which on the one hand fills the gap between the reinforcing rod 44 and the reinforcing hole 42, increasing the tightness of the connection; on the other hand, the rubber ring 45 has a certain elasticity, and when the valve seat is subjected to external force, it can alleviate stress concentration through its own elastic deformation, disperse the impact of external force on the valve seat, enhance the overall structural strength and stability of the valve seat, and enable the valve seat to maintain a good working condition under complex working conditions.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A damping shock absorber compression valve seat based on powder metallurgy, comprising a lower valve seat (1), wherein an upper valve seat (2) is fixedly connected to the top of the lower valve seat (1), characterized in that: The lower valve seat (1) is internally fixedly connected to a buffer assembly (3) and a reinforcing assembly (4); The buffer assembly (3) includes a damping sleeve (31), a damping rod (32) is slidably connected to the inner wall of the damping sleeve (31), a tray (33) is fixedly connected to the bottom of the damping sleeve (31), and a damping spring (34) is fixedly connected to the bottom of the tray (33).

2. The damping shock absorber compression valve seat based on powder metallurgy according to claim 1, characterized in that: The bottom of the damping rod (32) is fixedly connected to a damping ring (35), the inner wall of the lower valve seat (1) is provided with a first damping hole (36), and the interior of the lower valve seat (1) is provided with a second damping hole (37).

3. The damping shock absorber compression valve seat based on powder metallurgy according to claim 2, characterized in that: The outer wall of the damping rod (32) is slidably connected to the inner wall of the tray (33), and the outer wall of the damping ring (35) is slidably connected to the first damping hole (36).

4. The damping shock absorber compression valve seat based on powder metallurgy according to claim 1, characterized in that: The reinforcing component (4) includes a reinforcing block (41), the inner wall of the lower valve seat (1) is provided with a reinforcing hole (42), the inner wall of the reinforcing hole (42) is slidably connected with a reinforcing rod (44), the top of the reinforcing rod (44) is fixedly connected with an anti-detachment ring (43), and the outer wall of the reinforcing rod (44) is fitted with a rubber ring (45).

5. A damping shock absorber compression valve seat based on powder metallurgy according to claim 4, characterized in that: The outer wall of the reinforcing block (41) is fixedly connected to the outer wall of the lower valve seat (1), and the bottom of the upper valve seat (2) is provided with a positioning groove, and the reinforcing block (41) is engaged with the positioning groove.

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