Self-lubricating chain

Abstract

The utility model relates to a kind of self-lubricating chains, including chain body, the chain body is constituted by inner link and outer link, wherein, inner link is composed of 2 inner chain piece, 2 sleeve and 2 rollers, and the gap cooperation is assembled in sleeve on roller, and the both ends of sleeve are fixed on inner chain piece;Outer link is composed of outer chain piece with accessory and pin shaft, and pin shaft is fixed on 2 outer chain pieces adjacent;Inner link and outer link are connected by pin shaft and sleeve, and the gap cooperation between pin shaft and sleeve, and oil injection hole is set up on pin shaft;Oil injection hole and corresponding oil outlet hole are communicated, and oil injection hole and corresponding oil outlet hole are communicated in sleeve opposite on pin shaft.The utility model can reasonably utilize lubricating oil, avoid waste, effectively prolong the service life of chain.

Description

Technical Field

[0001] This utility model belongs to the field of chain technology, specifically relating to a self-lubricating chain. Background Technology

[0002] In the existing technology, the chain running on the sprocket is worn due to the relative rotation of the hinge at the pin, so manual oil lubrication is required. Since the chain is large, the lubrication effect is not good, requiring a lot of manpower and resources, and causing a waste of lubricating oil. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a self-lubricating chain that can make reasonable use of lubricating oil, avoid waste, and effectively extend the service life of the chain.

[0004] The technical solution of this utility model is to provide a self-lubricating chain, including a chain body, which is composed of inner links and outer links. Each inner link consists of two inner chain plates, two sleeves, and two rollers. The rollers are mounted on the sleeves with a clearance fit, and both ends of the sleeves are fixed to the inner chain plates. Each outer link consists of an outer chain plate with accessories and a pin, with the pin fixed to two adjacent outer chain plates. The inner and outer links are connected by the pin and the sleeve, with a clearance fit between the pin and the sleeve. The pin has an oil injection hole. The sleeve has an oil outlet hole corresponding to the oil injection hole on the pin. The oil injection hole and the corresponding oil outlet hole are connected, allowing lubricating oil to flow out through this hole, thereby reducing the friction between the pin and the sleeve, and between the sleeve and the rollers.

[0005] Preferably, an annular oil reservoir is machined on the outer circle of the shaft to facilitate the storage of lubricating oil.

[0006] Preferably, there is one annular oil storage tank.

[0007] Preferably, an oil nozzle is installed on the oil filling hole for easy oil filling.

[0008] Preferably, a retaining ring is provided between the oil nozzle and the pin.

[0009] Preferably, the outer link plate is provided with an outer link plate welded angle iron, and the inner link plate is provided with an inner link plate welded angle iron; the outer link plate is provided with an outer link plate reinforcing rib, and the inner link plate is provided with an inner link plate reinforcing rib.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] This invention simplifies and facilitates the addition of lubricating oil, ensuring its even distribution in the gaps between the chain links and hinges that form the friction pair. This efficient use of lubricating oil avoids waste and effectively extends the chain's service life. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a partial schematic diagram of the present invention.

[0014] Figure 3 for Figure 1 AA sectional view.

[0015] In the diagram: 1. Roller; 2. Inner chain link; 4. Welded angle iron for inner chain link; 5. Reinforcing rib for inner chain link; 6. Sleeve; 7. Oil nozzle; 8. Outer chain link; 10. Pin; 11. Snap ring; 12. Welded angle iron for outer chain link; 13. Reinforcing rib for outer chain link; 14. Oil injection hole; 15. Oil outlet hole. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0017] like Figure 1-3 As shown, this utility model discloses a self-lubricating chain, including a chain body composed of inner links and outer links. Each inner link consists of two inner chain plates 2, two sleeves 6, and two rollers 1. The rollers 1 are mounted on the sleeves 6 with a clearance fit, and both ends of the sleeves 6 are fixed to the inner chain plates 2. Each outer link consists of an outer chain plate 8 with accessories and a pin 10, with the pin 10 fixed to two adjacent outer chain plates 8. The inner and outer links are connected by the pin 10 and the sleeves 6, with a clearance fit between them. The pin 10 has an oil injection hole 14. The sleeves 6 have an oil outlet hole 15 corresponding to the oil injection hole on the pin. The oil injection hole 14 and the corresponding oil outlet hole 15 are connected, allowing lubricating oil to flow out through these holes, thereby reducing the friction between the pin and the sleeve, and between the sleeve and the rollers.

[0018] In one embodiment, an oil nozzle 7 is installed on the oil filling hole 14. In this embodiment, a retaining ring 11 is provided between the oil nozzle 7 and the pin 10.

[0019] This invention adds oil injection holes and lubrication holes to the pin 10 and sleeve 6, and installs an oil nozzle 7 on the pin 10. The lubricating oil is no longer applied from the outside, but instead penetrates from the inside out, distributing evenly and fully into the gaps at the chain links and hinges that form the friction pair (between the pin and sleeve, and between the sleeve and the roller), thus improving the efficiency of chain lubrication and saving lubricating oil.

[0020] As one implementation method, an annular oil reservoir is machined on the outer circumference of the pin 10 to facilitate the storage of lubricating oil. By creating an annular oil reservoir on the outer circumference of the pin, lubricating oil is retained in the chain, reducing the number of times lubrication needs to be repeated and effectively extending the service life of the chain.

[0021] In one embodiment, the outer link plate 8 is provided with an outer link plate welding angle iron 12, and the inner link plate 2 is provided with an inner link plate welding angle iron 4; the outer link plate 8 is provided with an outer link plate reinforcing rib 13, and the inner link plate 2 is provided with an inner link plate reinforcing rib 5.

[0022] This invention improves the efficiency of manual lubrication and saves on lubricating oil costs by adding an oil injection hole and an oil outlet hole to the pin and sleeve, and installing an oil nozzle on the pin, so that the lubricating oil is fully and evenly distributed in the gaps of the chain links that constitute the friction pair (between pin and sleeve, and between sleeve and roller). By machining an annular oil reservoir on the outer circle of the pin, the number of repeated lubrication is reduced, effectively improving the service life of the chain.

Claims

1. A self-lubricating chain, comprising a chain body, characterized in that: The chain body consists of inner links and outer links. Each inner link comprises two inner chain plates, two sleeves, and two rollers. The rollers are mounted on the sleeves with a clearance fit, and both ends of the sleeves are fixed to the inner chain plates. Each outer link comprises an outer chain plate and a pin, with the pin fixed to two adjacent outer chain plates. The inner and outer links are connected by the pin and sleeve, with a clearance fit between the pin and sleeve. The pin has an oil injection hole. The sleeve has an oil outlet hole corresponding to the oil injection hole on the pin, and the oil injection hole and the corresponding oil outlet hole are connected.

2. The self-lubricating chain according to claim 1, characterized in that: An annular oil reservoir is machined on the outer circumference of the pin to facilitate the storage of lubricating oil.

3. The self-lubricating chain according to claim 2, characterized in that: There is one annular oil storage tank.

4. The self-lubricating chain according to claim 1, characterized in that: An oil nozzle is installed on the oil filling hole.

5. The self-lubricating chain according to claim 4, characterized in that: A retaining ring is provided between the oil nozzle and the pin.

6. The self-lubricating chain according to claim 1, characterized in that: The outer link plate is equipped with an outer link plate welded angle iron, and the inner link plate is equipped with an inner link plate welded angle iron; the outer link plate is equipped with an outer link plate reinforcing rib, and the inner link plate is equipped with an inner link plate reinforcing rib.

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