Self-lubricating guide shaft seat assembly for powder pressing

CN224859911UActive Publication Date: 2026-10-16NANTONG ZHONGYE HYDRAULIC PRESS MACHINE
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Patent Information

Application Number
CN202522674644.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-17
Publication Date
2026-10-16
Estimated Expiration
2035-12-17

AI Technical Summary

Technical Problem

在实际应用过程中,导向轴座与‌垂直运动轴的摩擦、磨损会直接影响零部件寿命和设备运行效率,其中,导向轴座需要人工定期补充润滑剂来与‌垂直运动轴保持润滑,维护周期较短,并且润滑补充不及时还会影响设备可靠性,使用存在诸多限制,为此,我们提出来一种粉末压制用自润滑导向轴座组件以解决上述问题

Benefits of technology

本实用新型通过设置了自润滑轴座装置,首先使用针筒将润滑脂从注脂嘴添加补充进储脂腔内部,通过储脂纤维对润滑脂进行物理吸附,以控制润滑脂的释放速度,使用过程中,轴座整体与‌垂直运动轴导向移动时,轴座整体内壁的释放层会与‌垂直运动轴直接接触,此过程中储脂腔通过润滑孔为释放层供给润滑脂,其中释放层采用多孔陶瓷材质,使润滑脂能够渗透通过释放层涂抹释放到‌垂直运动轴表面,从而实现自动润滑,有效提升设备可靠性,并且延长了润滑维护周期。

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Abstract

The utility model discloses a kind of self-lubricating guide shaft seat assemblies for powder pressing, including self-lubricating shaft seat device;The utility model is provided with self-lubricating shaft seat device, first use needle cylinder to add and supplement grease from grease injection nozzle into the inside of grease storage cavity, the release speed of grease is controlled by physical adsorption to grease using grease storage fiber, during use, when the whole of shaft seat and perpendicular motion shaft guide moves, the release layer of the inner wall of the whole of shaft seat will be directly contacted with perpendicular motion shaft, in this process, grease storage cavity supplies grease for release layer through lubricating hole, wherein release layer uses porous ceramic material, so that grease can be penetrated through release layer and applied to the surface of perpendicular motion shaft, to realize automatic lubrication, effectively improve equipment reliability, and prolong lubrication maintenance cycle.
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Description

Technical Field

[0001] This utility model relates to the field of guide shaft technology, specifically a self-lubricating guide shaft assembly for powder pressing. Background Technology

[0002] A powder forming machine is an industrial device that uses high pressure to press metal or non-metal powder into a blank of a specific shape. It is a key piece of equipment in powder metallurgy. Guide shaft seats are mounted on the hydraulic worktable of the powder forming machine to guide and fix the vertical motion axes of the upper and lower punches, ensuring they maintain precise axial position and orientation during movement. In practical applications, the friction and wear between the guide shaft seat and the vertical motion shaft directly affect the lifespan of components and the operating efficiency of the equipment. In particular, the guide shaft seat requires manual replenishment of lubricant regularly to maintain lubrication with the vertical motion shaft, resulting in a short maintenance cycle. Furthermore, untimely lubrication replenishment can also affect the reliability of the equipment, leading to many limitations in its use. To address these issues, we propose a self-lubricating guide shaft seat assembly for powder pressing. Utility Model Content

[0003] The purpose of this invention is to provide a self-lubricating guide shaft assembly for powder pressing, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a self-lubricating guide shaft assembly for powder pressing, comprising a self-lubricating shaft assembly, the self-lubricating shaft assembly comprising a shaft assembly, a housing, an assembly hole, a grease reservoir, grease storage fibers, a lubrication hole, and a release layer. The housing is assembled in the middle of the surface of the shaft assembly, and the assembly hole is vertically through-provided at the corner of the housing. The grease reservoir is circumferentially provided on the inner side of the housing, and the grease reservoir is filled with grease storage fibers. The lubrication hole is opened on the inner wall of the shaft assembly and communicates with the interior of the grease reservoir. The release layer is embedded in the inner wall of the shaft assembly, and the release layer has a ring structure, wherein the release layer coincides with the position of the lubrication hole.

[0005] Preferably, the oil-storing fiber is viscose fiber.

[0006] Preferably, the number of lubrication holes is not less than three, and the lubrication holes are evenly distributed in a ring on the inner wall of the bearing seat.

[0007] Preferably, the release layer is made of porous ceramic material.

[0008] Preferably, the top edge of the housing is fitted with a grease injection nozzle, which is connected to the inside of the grease reservoir.

[0009] Compared with the prior art, the beneficial effects of this utility model are: This invention incorporates a self-lubricating shaft seat device. First, grease is added to the grease reservoir through a syringe via the grease injection nozzle. The grease is then physically adsorbed by grease-storing fibers to control its release rate. During use, as the shaft seat moves along the vertical motion shaft, the release layer on the inner wall of the shaft seat comes into direct contact with the shaft. The reservoir supplies grease to the release layer through lubrication holes. The release layer, made of porous ceramic material, allows the grease to penetrate and be applied to the surface of the vertical motion shaft, thus achieving automatic lubrication. This effectively improves equipment reliability and extends the lubrication maintenance cycle. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the overall top sectional structure of this utility model.

[0012] Figure 3 This is a top view cross-sectional structural diagram of the housing in this utility model.

[0013] Figure 4 This is a top view sectional structural diagram of the central shaft seat of this utility model.

[0014] Figure 5 This is a front view cross-sectional structural diagram of the central shaft seat of this utility model.

[0015] In the figure: self-lubricating bearing seat device-1, bearing seat assembly-11, housing seat-12, assembly hole-13, grease reservoir-14, grease reservoir fiber-15, lubrication hole-16, release layer-17, grease injection nozzle-18. Detailed Implementation

[0016] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0017] Please see Figure 1-5 This utility model provides a self-lubricating guide shaft assembly for powder pressing, including a self-lubricating shaft device 1. The self-lubricating shaft device 1 includes a shaft body 11, a housing 12, an assembly hole 13, a grease reservoir 14, grease storage fibers 15, a lubrication hole 16, and a release layer 17. The housing 12 is assembled in the middle of the surface of the shaft body 11. The assembly hole 13 is vertically provided through the corner of the housing 12. The grease reservoir 14 is provided in the inner side of the housing 12. The grease reservoir 14 is filled with grease storage fibers 15. The lubrication hole 16 is opened on the inner wall of the shaft body 11 and communicates with the inside of the grease reservoir 14. The release layer 17 is embedded in the inner wall of the shaft body 11. The release layer 17 has a ring structure, and the release layer 17 coincides with the position of the lubrication hole 16.

[0018] Among them, the grease storage fiber 15 is made of viscose fiber. Viscose fiber has high porosity and strong adsorption, which ensures the delayed release of lubricating grease.

[0019] To further explain, there are no fewer than three lubrication holes 16, and the lubrication holes 16 are equidistantly arranged in a ring on the inner wall of the shaft seat 11 to ensure that the grease can be evenly released and discharged to the surface of the vertically moving shaft.

[0020] The release layer 17 is made of porous ceramic material, which can control the lubrication hole 16 to delay release and effectively extend the lubrication cycle.

[0021] This utility model provides a self-lubricating guide shaft assembly for powder pressing. The top edge of the housing 12 is equipped with a grease injection nozzle 18, which is connected to the inside of the grease reservoir 14. The grease injection nozzle 18 can be used to add and replenish grease to the grease reservoir 14 to meet the needs of long-term use.

[0022] Specifically, by setting up a self-lubricating bearing seat device 1, grease is first added into the grease reservoir 14 through the grease injection nozzle 18 using a syringe. The grease is then physically adsorbed by the grease reservoir fiber 15 to control the release rate of the grease. During use, when the bearing seat assembly 11 moves with the vertical motion shaft, the release layer 17 on the inner wall of the bearing seat assembly 11 will directly contact the vertical motion shaft. During this process, the grease reservoir 14 supplies grease to the release layer 17 through the lubrication hole 16. The release layer 17 is made of porous ceramic material, which allows the grease to penetrate through the release layer 17 and be applied to the surface of the vertical motion shaft, thereby achieving automatic lubrication, effectively improving equipment reliability, and extending the lubrication maintenance cycle.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-lubricating guide shaft assembly for powder pressing, characterized in that: The device includes a self-lubricating bearing seat (1), which includes a bearing seat assembly (11), a housing (12), an assembly hole (13), a grease reservoir (14), grease reservoir fibers (15), a lubrication hole (16), and a release layer (17). The housing (12) is assembled in the middle of the surface of the bearing seat assembly (11). The assembly hole (13) is vertically provided at the corner of the housing (12). The grease reservoir (14) is provided in the inner ring of the housing (12). The grease reservoir (14) is filled with grease reservoir fibers (15). The lubrication hole (16) is provided on the inner wall of the bearing seat assembly (11). The lubrication hole (16) is connected to the inside of the grease reservoir (14). The release layer (17) is embedded in the inner wall of the bearing seat assembly (11). The release layer (17) is a ring structure, wherein the release layer (17) coincides with the position of the lubrication hole (16).

2. The self-lubricating guide shaft assembly for powder pressing according to claim 1, characterized in that: The fat storage fiber (15) is made of viscose fiber.

3. The self-lubricating guide shaft assembly for powder pressing according to claim 1, characterized in that: The number of lubrication holes (16) is not less than 3, and the lubrication holes (16) are arranged in a ring at equal intervals on the inner wall of the shaft seat (11).

4. The self-lubricating guide shaft assembly for powder pressing according to claim 1, characterized in that: The release layer (17) is made of porous ceramic material.

5. The self-lubricating guide shaft assembly for powder pressing according to claim 1, characterized in that: The top edge of the housing (12) is fitted with a grease nipple (18), which is connected to the inside of the grease reservoir (14).