Wear-resistant stainless steel welding chain

Abstract

The utility model provides a wear-resistant stainless steel welding chain which comprises first chain plates, second chain plates and pin shaft cylinders, the two second chain plates are attached to the inner walls of the two first chain plates respectively, two first pin shaft holes are formed in the front surfaces of the first chain plates in a penetrating mode, second pin shaft holes are formed in the front surfaces of the second chain plates in a penetrating mode, and the first pin shaft holes are matched with the second pin shaft holes. The center axes of the circle centers of the two first pin shaft holes and the second pin shaft holes are located on the same straight line. The oil storage tank is ingeniously designed on the supporting pin shaft and used for storing a certain amount of lubricating oil. According to the design, the structural space of the supporting pin shaft is fully utilized, preloading and storage of lubricating oil are achieved, and the tedious operation that the lubricating oil needs to be added frequently in a traditional lubricating mode is avoided. An oil outlet hole is formed below the oil storage tank, and the lubricating oil in the oil storage tank can automatically flow into the pin shaft barrel through the oil outlet hole under the action of gravity when the supporting pin shaft rotates to the position where the oil outlet hole faces downwards.

Description

TECHNICAL FIELD

[0001] The utility model relates to chain production technical field, concretely is a kind of wear-resistant stainless steel welded chain. BACKGROUND

[0002] In the existing chain transmission system, pin shaft as key component, its wear resistance and service life directly affect the stability and efficiency of the whole transmission system. However, the traditional pin shaft in use, due to the friction and wear between pin shaft sleeve and pin shaft, often lead to insufficient lubrication, and then accelerate the wear of parts, reduce service life. In addition, traditional lubrication mode is mostly dependent on artificial periodic addition of lubricating oil, and the operation is complicated, and it is difficult to guarantee the timeliness and uniformity of lubrication. SUMMARY

[0003] The utility model discloses a kind of wear-resistant stainless steel welded chains to solve the shortcomings in prior art.

[0004] To achieve the above object, the utility model adopts the following technical scheme: a kind of wear-resistant stainless steel welded chain, including first chain plate, second chain plate and pin shaft cylinder, two the inner wall of two first chain plates is attached to the second chain plate respectively, the front surface of the first chain plate is all opened in two first pin shaft holes, the front surface of the second chain plate is all opened in second pin shaft hole, the center axis of the circle of two first pin shaft holes and second pin shaft hole is on the same straight line, two second chain plate is fixedly welded with pin shaft sleeve, the pin shaft sleeve is set on the outer surface of pin shaft cylinder, the two ends of pin shaft cylinder pass through second pin shaft hole and first pin shaft hole and extend to first chain plate outside respectively, pin shaft cylinder and first pin shaft hole, second pin shaft hole are all clamped, the inside of pin shaft cylinder is clamped with two support pin shafts, the end of two support pin shafts away from second chain plate is fixedly connected with sealing cover, the end of two support pin shafts away from sealing cover is abutted tightly, the end of two support pin shafts away from sealing cover is opened in oil storage groove, two oil storage grooves are communicated, and the top of the end of two support pin shafts away from sealing cover is all provided with oil outlet.

[0005] Preferably, two sealing covers are threadedly connected with the two ends of the pin shaft cylinder respectively, and the sealing covers are in contact with the first chain plates.

[0006] Preferably, the oil outlet is in communication with the oil storage groove.

[0007] Preferably, the outer surface of the pin shaft cylinder is penetrated by a plurality of slots, and the slots are in communication with the interior of the pin shaft cylinder.

[0008] The utility model has the following beneficial effects:

[0009] 1.The utility model discloses a storage oil tank is ingeniously designed on the support pin shaft, for storing a certain amount of lubricating oil. This design makes full use of the structural space of the support pin shaft, realizes the preloading and storage of the lubricating oil, and avoids the cumbersome operation of frequent addition of lubricating oil in the traditional lubricating mode. An oil outlet hole is arranged below the storage oil tank, and the lubricating oil in the storage oil tank will automatically flow into the pin shaft cylinder through the oil outlet hole under the action of gravity when the support pin shaft rotates to the position where the oil outlet hole faces downward. This design realizes the automatic and timed release of the lubricating oil, ensures that the pin shaft sleeve and the pin shaft cylinder always maintain a good lubricating state. The groove formed on the pin shaft cylinder further guides the lubricating oil to the gap between the pin shaft sleeve and the pin shaft cylinder, ensures that the lubricating oil can uniformly and fully cover the friction surface, thereby effectively reducing the friction coefficient, reducing wear, and improving the wear resistance and service life of the chain.

[0010] 2.The two ends of the support pin shaft are provided with sealing covers, which are tightly connected with the pin shaft cylinder through threads to form a reliable sealing structure. This design not only enhances the connection strength between the support pin shaft and the pin shaft cylinder, but also ensures the sealing of the lubricating oil in the storage oil tank, preventing leakage and pollution of the lubricating oil. When it is necessary to add lubricating oil to the storage oil tank, the operator only needs to simply rotate the sealing cover to dismount the support pin shaft from the pin shaft cylinder, without the need to disassemble the entire chain transmission system. This design greatly simplifies the maintenance process, reduces the maintenance difficulty and cost. At the same time, it also provides convenience for refueling the storage oil tank on the other support pin shaft. When the two sealing covers are threadedly sealed with the pin shaft cylinder, the gap between the storage oil tanks on the two support pin shafts is completely sealed, effectively preventing the lubricating oil from flowing out from the gap between the two support pin shafts. This double sealing design further improves the reliability and safety of the lubricating system. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Fig. 2 It is a schematic diagram of the position of the oil outlet hole of the utility model.

[0013] Among them, 1, the first chain plate; 2, the second chain plate; 3, the pin shaft sleeve; 4, the pin shaft cylinder; 5, the support pin shaft; 6, the first pin shaft hole; 7, the second pin shaft hole; 8, the sealing cover; 9, the storage oil tank; 10, the oil outlet hole. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only 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 those skilled in the art without creative labor belong to the scope of protection of the utility model. Embodiments

[0015] As Figs. 1-2 shown, the utility model discloses a wear -resisting type stainless steel welded chain, including first chain plate 1, second chain plate 2 and pin shaft cylinder 4, two second chain plate 2 respectively adhere to the inner wall of two first chain plate 1, the front surface of first chain plate 1 is all set up two first pin shaft hole 6, the front surface of second chain plate 2 is all set up second pin shaft hole 7, the center axis of two first pin shaft hole 6 and second pin shaft hole 7 is on the same straight line, two second chain plate 2 between fixed welding have pin shaft sleeve 3, pin shaft sleeve 3 is equipped with in the outer surface of pin shaft cylinder 4, and the both ends of pin shaft cylinder 4 respectively pass through second pin shaft hole 7 and first pin shaft hole 6 and extend to first chain plate 1 outside, and pin shaft cylinder 4 is all with first pin shaft hole 6, second pin shaft hole 7 is clamped, and the inside clamping of pin shaft cylinder 4 has two support pin shaft 5, and the one end of two support pin shaft 5 away from second chain plate 2 is fixedly connected with sealing cover 8, and the one end of two support pin shaft 5 away from sealing cover 8 is close, and the one end of two support pin shaft 5 away from sealing cover 8 is set up oil storage groove 9, and two oil storage grooves 9 are communicated, and the top of the one end of two support pin shaft 5 away from sealing cover 8 is all provided with oil outlet hole 10.

[0016] Two sealing covers 8 and the both ends of pin shaft cylinder 4 adopt the precise thread connection, ensure the tightness and stability of connection. This design not only can effectively prevent the lubricating oil from leaking from the sealing place, but also can resist certain vibration and impact, guarantee the normal operation of equipment under harsh working conditions. The contact surface of sealing cover 8 and first chain plate 1 adopts special sealing material or coating, such as rubber sealing ring or sealing glue, to further improve the sealing effect. At the same time, the contact surface should be designed as a structure easy to clean and maintain, so as to be replaced or adjusted when necessary.

[0017] The connectivity between oil outlet hole 10 and oil storage groove 9 is further optimized, ensuring that lubricating oil can smoothly flow from oil storage groove 9 into oil outlet hole 10 and quickly enter the inside of pin shaft cylinder 4 when needed. This helps to achieve more precise lubrication control and reduce waste of lubricating oil. Anti-clogging measures are considered in the design of oil outlet hole 10 and oil storage groove 9, such as setting a filter screen or using a material that is not easy to block, to prevent impurities from entering and affecting the lubrication effect.

[0018] The slot layout on the outer surface of pin shaft cylinder 4 is carefully designed to ensure that lubricating oil can flow evenly and quickly to the gap between pin shaft sleeve 3 and pin shaft cylinder 4. The number, size, spacing and angle of the slots are calculated and optimized to achieve the best lubrication effect. The connectivity between the slots and the inside of pin shaft cylinder 4 is further strengthened to ensure that lubricating oil can flow unobstructed. This helps to achieve more efficient lubrication, improve the wear resistance and service life of the chain.

[0019] Working principle: When using the wear-resistant stainless steel welded chain, the support pin shafts will rotate with the rotation of the chain. These support pin shafts are equipped with oil storage grooves to store a certain amount of lubricating oil. When a support pin shaft rotates to a position where its oil outlet hole faces downward, due to the action of gravity and centrifugal force, the lubricating oil in the oil storage groove will be guided into the inside of the pin shaft cylinder through the oil outlet hole. The outer surface of the pin shaft cylinder is designed with multiple grooves that are connected to the inside of the pin shaft cylinder. Therefore, when the lubricating oil enters the inside of the pin shaft cylinder, it will flow through these grooves to the gap between the pin shaft sleeve and the pin shaft cylinder. The distribution of lubricating oil in the gap helps to reduce the friction and wear between the pin shaft sleeve and the pin shaft cylinder, thereby improving the wear resistance of the chain. Over time, the lubricating oil in the oil storage groove will gradually be consumed. In order to maintain the good lubrication state of the chain, it is necessary to regularly replenish the lubricating oil for the oil storage groove. Both ends of each support pin shaft are equipped with sealing covers that are connected to the pin shaft cylinder through threads. When it is necessary to replenish the lubricating oil, the operator can remove the sealing cover by rotating it. After removing the sealing cover, the oil storage groove on the support pin shaft can be easily accessed and the appropriate amount of lubricating oil can be added. After completing the replenishment of lubricating oil, the sealing cover is tightened back to the pin shaft cylinder to ensure the sealing. At this time, the oil storage grooves on the two support pin shafts are effectively isolated by the sealing action of the sealing cover, preventing the lubricating oil from flowing out of the gap between the two support pin shafts.

[0020] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant stainless steel welded chain comprising a first link plate (1), a second link plate (2) and a pin barrel (4), characterized in that: Two second chain plates (2) respectively fit the inner walls of two first chain plates (1), the front surfaces of the first chain plates (1) are provided with two first pin shaft holes (6), the front surfaces of the second chain plates (2) are provided with second pin shaft holes (7), the centers of the two first pin shaft holes (6) and the second pin shaft holes (7) are on the same straight line, pin shaft sleeves (3) are fixedly welded between the two second chain plates (2), the pin shaft sleeves (3) are sleeved on the outer surfaces of pin shaft barrels (4), the two ends of the pin shaft barrels (4) pass through the second pin shaft holes (7) and the first pin shaft holes (6) and extend out of the first chain plates (1), the pin shaft barrels (4) are clamped with the first pin shaft holes (6) and the second pin shaft holes (7), the interiors of the pin shaft barrels (4) are clamped with two supporting pin shafts (5), the ends, away from the second chain plates (2), of the two supporting pin shafts (5) are fixedly connected with sealing covers (8), the ends, away from the sealing covers (8), of the two supporting pin shafts (5) abut tightly, the ends, away from the sealing covers (8), of the two supporting pin shafts (5) are provided with oil storage grooves (9), the two oil storage grooves (9) are connected, and the tops of the ends, away from the sealing covers (8), of the two supporting pin shafts (5) are provided with oil outlet holes (10).

2. A wear-resistant stainless steel welded chain according to claim 1, characterized in that: The two sealing covers (8) are threadedly connected with the two ends of the pin shaft barrels (4), and the sealing covers (8) contact the first chain plates (1).

3. The abrasion-resistant stainless steel welded chain according to claim 1, characterized in that: The oil outlet holes (10) are connected with the oil storage grooves (9).

4. The abrasion-resistant stainless steel welded chain according to claim 1, wherein: The outer surface of the pin shaft barrel (4) is provided with a plurality of grooves, and the grooves are connected with the interior of the pin shaft barrel (4).

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