Sealing self-lubricating type pin shaft
By designing a combined structure of sealing limit seats, connecting balls, mounting sleeves, oil storage sponges and reset extrusion springs on the pins, the problems of traditional pins wear and difficulty in uniform oiling are solved, and the sealing and lubrication effect is achieved , extends service life and increases lubrication strength.
Patent Information
- Application Number
- CN202411207342.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-01-03
AI Technical Summary
During the working process, traditional pins are prone to impurities between the sleeves, which leads to wear and difficulty in uniform oiling during maintenance.
A sealed self-wetting pin is designed, using a combined structure of sealed limit seat, connecting ball, mounting sleeve, oil storage sponge and reset extrusion spring to ensure that the pin remains sealed in working state and is stored through storage. The extrusion of the oil sponge releases lubricating oil, reducing friction and wear.
It effectively reduces the friction between the pin and the sleeve, extends the service life, and provides greater lubrication force in working state, especially when operating at high power, protects the normal operation of the pin.
Smart Images
Figure CN119244626A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of chain equipment, in particular to a sealed self-lubricating pin shaft. Background Art
[0002] A pin is an elongated cylindrical element used to connect and fix mechanical parts. It can achieve both static fixed connection and relative movement with the connected parts. It is mainly used at the hinge of two parts to form a hinge connection. In chain transmission, the pin specifically refers to the element used as the rotating axis of the chain hinge.
[0003] During the operation of the traditional pin shaft, impurities are easily present between the sleeve and the pin shaft, which may cause severe wear and tear, and it is extremely difficult to evenly oil the pin shaft during maintenance. Summary of the invention
[0004] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a sealed self-lubricating pin shaft, which solves the problem that impurities are easily present between the sleeve and the traditional pin shaft during operation, severe wear occurs, and it is extremely difficult to evenly oil the pin shaft during maintenance.
[0005] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: a sealed self-lubricating pin, comprising a processing pin body, both ends of the pin body are sleeved with a sealing limit seat, the outer surface of the sealing limit seat is provided with an extension extending toward the center position of the pin body, the surface of the sealing limit seat close to the center position of the pin body is rotatably clamped with a plurality of connecting balls, the plurality of connecting balls are distributed in an annular array, the positions of the plurality of connecting balls are located inside the extension extending toward the center position of the sealing limit seat, the outer surface of the pin body is slidably sleeved with a plurality of mounting sleeves, an oil storage sponge is provided between the plurality of mounting sleeves, the two ends of the oil storage sponge are respectively fixedly connected to the two mounting sleeves, a plurality of reset extrusion springs are provided between the sealing limit seat and the mounting sleeve closest to it, the two ends of the plurality of reset extrusion springs are respectively fixedly connected to the mounting sleeve and the sealing limit seat, an oil storage sponge is also provided between the mounting sleeve and the mounting sleeve closest to it, and the reset extrusion spring is located inside the oil storage sponge.
[0006] Preferably, the outer side wall of the mounting sleeve is located on the same vertical line as the inner side wall of the sealing limit seat extending toward the center of the pin body.
[0007] Working principle: During use, when the pin shaft is in a working state, since the outer surface of the sealing limit seat is provided with an extension extending toward the center position of the pin shaft body, and the surface of the sealing limit seat close to the center position of the pin shaft body is rotatably clamped with a plurality of connecting balls, the plurality of connecting balls are distributed in a circular array, and the positions of the plurality of connecting balls are located inside the extension extending toward the center position of the sealing limit seat. The working environment of the fixed pin shaft is always kept in a sealed state. Therefore, the friction between the pin shaft and the sleeve is mostly replaced by the rotational friction of the connecting balls. On the premise of maintaining the sealing state as much as possible, the force between the two is also reduced, thereby improving the service life of the two. In the working state, since the various oil storage sponges are squeezed by the various mounting sleeves, the stored lubricating oil is released, and the pin shaft can also be lubricated in the working state, and in the process of adding lubricating oil, the excess oil will be absorbed and stored by it, especially in the high-power operation extrusion state, the lubrication force on the pin shaft will be greater to protect its normal operation.
[0008] (III) Beneficial effects The present invention provides a sealed self-lubricating pin shaft, which has the following beneficial effects: 1. The working environment of the sealed self-lubricating pin is always kept in a sealed state. Therefore, the friction between the pin and the sleeve is mostly replaced by the rotational friction of the connecting ball. Under the premise of maintaining the sealed state as much as possible, the force between the two is also reduced, thereby increasing the service life of the two. 2. The sealed self-lubricating pin shaft, when in working state, each oil storage sponge is squeezed by each mounting sleeve, thereby releasing the stored lubricating oil. The pin shaft can also be lubricated in working state, and in the process of adding lubricating oil, the excess oil will be absorbed and stored. Especially in the high-power operation and squeezing state, the lubrication force on the pin shaft will be greater to protect its normal operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Among them, 1. pin shaft body; 2. sealing limit seat; 3. mounting sleeve; 4. oil storage sponge; 5. reset extrusion spring; 6. connecting ball. DETAILED DESCRIPTION
[0010] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example:
[0011] like Figure 1 As shown, an embodiment of the present invention provides a sealed self-lubricating pin shaft, including a processing pin shaft body 1, both ends of the pin shaft body 1 are sleeved with a sealing limit seat 2, and both sides of the sealing limit seat 2 are provided with an extension extending toward the center position of the pin shaft body 1, and the surface of the sealing limit seat 2 close to the center position of the pin shaft body 1 is rotatably clamped with a plurality of connecting balls 6, and the plurality of connecting balls 6 are distributed in a ring array, and the positions of the plurality of connecting balls 6 are located inside the extension extending toward the center position of the sealing limit seat 2, and the outer surface of the pin shaft body 1 is slidably sleeved with a plurality of mounting sleeves 3, and an oil storage sponge 4 is arranged between the plurality of mounting sleeves 3, and the two ends of the oil storage sponge 4 are respectively fixedly connected to the two mounting sleeves 3, and a plurality of reset extrusion springs 5 are arranged between the sealing limit seat 2 and the mounting sleeve 3 closest to it, and the two ends of the plurality of reset extrusion springs 5 are respectively fixedly connected to the mounting sleeve 3 and the sealing limit seat 2, and an oil storage sponge 4 is also arranged between the mounting sleeve 3 and the mounting sleeve 3 closest to it, and the reset extrusion spring 5 is located inside the oil storage sponge 4.
[0012] The outer wall of the mounting bracket 3 and the inner wall of the sealing limit seat 2 extending toward the center of the pin body 1 are on the same vertical line.
[0013] 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 sealed self-lubricating pin, comprising a processing pin body (1), characterized in that: Both ends of the pin shaft body (1) are sleeved with sealing limit seats (2), the outer surface of the sealing limit seat (2) is provided with an edge extending in the direction of the center position of the pin shaft body (1), and the surface of the sealing limit seat (2) close to the center position of the pin shaft body (1) is rotatably clamped with a plurality of connecting balls (6), the plurality of connecting balls (6) are distributed in a ring array, and the plurality of connecting balls (6) are located inside the edge extending in the direction of the center position of the sealing limit seat (2), and the outer surface of the pin shaft body (1) is slidably sleeved with a plurality of mounting brackets (3), and the plurality of connecting balls (6) are arranged in a ring array. An oil storage sponge (4) is arranged between the mounting sleeves (3), and the two ends of the oil storage sponge (4) are respectively fixedly connected to the two mounting sleeves (3). A plurality of return extrusion springs (5) are arranged between the sealing limit seat (2) and the mounting sleeve (3) closest to it, and the two ends of the plurality of return extrusion springs (5) are respectively fixedly connected to the mounting sleeve (3) and the sealing limit seat (2). An oil storage sponge (4) is also arranged between the mounting sleeve (3) and the mounting sleeve (3) closest to it, and the return extrusion spring (5) is located inside the oil storage sponge (4).
2. A sealed self-lubricating pin according to claim 1, characterized in that: The position of the outer wall of the mounting sleeve (3) and the position of the inner wall extending from the sealing limit seat (2) in the direction of the center position of the pin shaft body (1) are on the same vertical line.