Conveying chain capable of storing lubricating grease

Abstract

The utility model discloses a conveying chain capable of storing lubricating grease, which comprises a pin shaft, two outer chain plates are arranged on the pin shaft, a sleeve positioned between the two outer chain plates is sleeved on the pin shaft, two inner chain plates are arranged on the sleeve, and a roller positioned between the two inner chain plates is sleeved on the sleeve. A plurality of step grooves are formed in the circumferential face of the pin shaft, an oil injection channel is formed in the pin shaft, an oil injection nozzle is arranged at the input end of the oil injection channel, a plurality of flow dividing oil channels are formed in the pin shaft, and the step grooves are communicated with the oil injection channel through the corresponding flow dividing oil channels. The maintenance time interval of the conveying chain is increased, and the maintenance frequency is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyor chains, in particular to a conveyor chain capable of storing lubricating grease. Background Art

[0002] The conveyor chain is a key component of conveying machinery such as chain conveyors. It is a chain with a wide range of applications. It has the advantages of diverse conveyable items, strong adaptability to working environments, arbitrary item flow direction, good conveying position accuracy, controllable conveying rhythm, long conveying distance, and the ability to withstand heavy loads and impacts.

[0003] Usually, during the normal operation of a plate conveyor chain, the lubricating oil will continue to be lost as the chain runs, and even a small amount of oil may be lost when the chain stops running. Due to the small amount of oil storage in the chain, the maintenance and oiling intervals of the conveyor chain are too frequent. Summary of the Invention

[0004] The purpose of the utility model is to solve the problems in the prior art and to provide a conveyor chain capable of storing lubricating grease, which can increase the lubricating grease storage of the conveyor chain at a single time, increase the maintenance time interval of the conveyor chain, and reduce the number of maintenance times.

[0005] To achieve the above-mentioned purpose, the utility model proposes a conveyor chain capable of storing lubricating grease, comprising a pin shaft, two outer link plates being provided on the pin shaft, a sleeve being sleeved on the pin shaft and located between the two outer link plates, two inner link plates being provided on the sleeve, a roller being sleeved on the sleeve and located between the two inner link plates, a plurality of step grooves being provided on the circumferential surface of the pin shaft, an oil injection channel being provided in the pin shaft, an oil injection nozzle being provided at the input end of the oil injection channel, a plurality of diversion oil channels being provided in the pin shaft, and the step grooves being connected to the oil injection channel through corresponding diversion oil channels.

[0006] Preferably, a groove is provided at the upper end of the pin shaft, and the input end of the oil injection channel passes through the bottom of the groove.

[0007] Preferably, the groove is in a truncated cone shape.

[0008] Preferably, both ends of the sleeve and the pin shaft are sealed by a labyrinth seal, the labyrinth seal is provided with a cavity, a sealing ring is provided in the cavity, and the cavity in the sealing ring stores lubricating oil.

[0009] Preferably, the cavity in the sealing ring is provided with an oil storage sponge.

[0010] Preferably, the labyrinth seal is composed of an inner cover and an outer cover that fit together and snap together. The edges of the inner cover and the outer cover are respectively provided with a retaining ring I and a retaining ring II. The retaining ring I is located inside the retaining ring II. The retaining ring I and the retaining ring II constitute a labyrinth seal, and the space between the inner cover and the outer cover constitutes a cavity.

[0011] Preferably, the inner cover is provided on the sleeve and is in contact with the outer side surface of the corresponding inner link plate, and the outer cover is provided on the pin and is in contact with the inner side surface of the corresponding outer link plate.

[0012] Preferably, both ends of the sleeve are provided with a plurality of oil inlets located in the cavity.

[0013] The beneficial effects of the present invention are as follows: the present invention provides a plurality of step grooves on the circumference of the pin shaft, an oil injection channel is provided in the pin shaft, an oil injection nozzle is provided at the input end of the oil injection channel, a plurality of branch oil channels are provided in the pin shaft, the step grooves are connected with the oil injection channel through the corresponding branch oil channels, and the oil storage capacity is increased by storing oil in the step grooves. Compared with the prior art, the single lubricating oil storage capacity of the conveyor chain can be increased, the maintenance time interval of the conveyor chain is increased, and the maintenance frequency is reduced.

[0014] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a conveyor chain capable of storing lubricating grease in the utility model;

[0016] Figure 2 yes Figure 1 A magnified view of middle A;

[0017] Figure 3 It is a structural diagram in which the oil inlet is arranged on the sleeve.

[0018] In the figure: 1-pin, 2-outer link plate, 3-sleeve, 4-inner link plate, 5-roller, 6-labyrinth seal, 7-cavity, 8-sealing ring, 9-oil storage sponge, 10-oil inlet, 61-inner cover, 62-outer cover, 63-retaining ring I, 64-retaining ring II, 11-step groove, 12-oil injection channel, 13-oil injection nozzle, 14-diverter oil channel, 15-groove. DETAILED DESCRIPTION

[0019] See Figure 1 、 Figure 2 and Figure 3 The utility model is a conveyor chain that can store lubricating grease, including a pin shaft 1, two outer link plates 2 are provided on the pin shaft 1, a sleeve 3 located between the two outer link plates 2 is sleeved on the pin shaft 1, two inner link plates 4 are provided on the sleeve 3, and a roller 5 located between the two inner link plates 4 is sleeved on the sleeve 3. It is characterized in that: a plurality of step grooves 11 are provided on the circumference of the pin shaft 1, an oil injection channel 12 is provided in the pin shaft 1, an oil injection nozzle 13 is provided at the input end of the oil injection channel 12, a plurality of branch oil channels 14 are provided in the pin shaft 1, and the step grooves 11 are connected to the oil injection channel 12 through corresponding branch oil channels 14.

[0020] A groove 15 is provided at the upper end of the pin shaft 1 , and the input end of the oil injection channel 12 passes through the bottom of the groove 15 .

[0021] The groove 15 is in a truncated cone shape.

[0022] Both ends of the sleeve 3 and the pin shaft 1 are sealed by a labyrinth seal 6 . The labyrinth seal 6 is provided with a cavity 7 . A sealing ring 8 is provided in the cavity 7 . Lubricating oil is stored in the cavity 7 in the sealing ring 8 .

[0023] The cavity 7 in the sealing ring 8 is provided with an oil storage sponge 9.

[0024] The labyrinth seal 6 is composed of an inner cover 61 and an outer cover 62 that fit together and snap together. The edges of the inner cover 61 and the outer cover 62 are respectively provided with a retaining ring I63 and a retaining ring II64. The retaining ring I63 is located inside the retaining ring II64. The retaining ring I63 and the retaining ring II64 constitute a labyrinth seal, and the space between the inner cover 61 and the outer cover 62 constitutes a cavity 7.

[0025] The inner cover 61 is provided on the sleeve 3 and is in contact with the outer side surface of the corresponding inner link plate 4 , and the outer cover 62 is provided on the pin shaft 1 and is in contact with the inner side surface of the corresponding outer link plate 2 .

[0026] Both ends of the sleeve 3 are provided with a plurality of oil inlets 10 located in the cavity 7 .

[0027] Working process of this utility model:

[0028] During operation of the conveyor chain capable of storing lubricating grease, the lubricating oil enters the oil filling channel 12 through the oil filling nozzle 13 and then enters the corresponding step groove 11 through the diverter oil channel 14, which is convenient for regular maintenance.

[0029] The step groove 11 can be used to store lubricating grease. When the chain stops running, the lubricating grease can maintain its original shape and will not automatically lose due to gravity, nor will it slide on a vertical surface or drip out from the gap.

[0030] The inner cover 61 and the outer cover 62 cooperate with each other to form a large cavity and a labyrinth sealing structure to prevent hard particles or dust in the elevator from entering the gap between the sleeve 3 and the pin 1. The elastic sealing ring 8 is installed on the outside of the labyrinth sealed cavity 7, which can not only prevent hard particles or dust from entering again, but also prevent the lubricating oil in the cavity 7 from flowing out. The oil storage sponge is installed in the sealing ring 8 to store grease. Four oil inlets 10 are opened at both ends of the sleeve 3 to facilitate the lubricating grease to flow into the gap between the sleeve 3 and the pin 1, thereby ensuring the sealing of the chain, preventing the lubricating oil from flowing out, and further increasing the capacity of the lubricating oil, thereby extending the maintenance time interval.

[0031] The oiling nozzle 13 is arranged in the groove 15 to prevent the oiling nozzle 13 from being scraped off and protect the oiling nozzle. The groove 15 is in a truncated cone shape to prevent materials from accumulating here.

[0032] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the scope of protection of the present invention.

Claims

1. A conveyor chain capable of storing lubricating grease, comprising a pin (1), two outer link plates (2) being provided on the pin (1), a sleeve (3) being sleeved on the pin (1) and located between the two outer link plates (2), two inner link plates (4) being provided on the sleeve (3), and a roller (5) being sleeved on the sleeve (3) and located between the two inner link plates (4), characterized in that: The pin shaft (1) is provided with a plurality of step grooves (11) on its circumferential surface, an oil injection channel (12) is provided in the pin shaft (1), an oil injection nozzle (13) is provided at the input end of the oil injection channel (12), and a plurality of diversion oil channels (14) are provided in the pin shaft (1), and the step grooves (11) are all connected to the oil injection channel (12) through the corresponding diversion oil channels (14).

2. A conveyor chain capable of storing lubricating grease according to claim 1, characterized in that: A groove (15) is provided at the upper end of the pin shaft (1), and the input end of the oil injection channel (12) passes through the bottom of the groove (15).

3. A conveyor chain capable of storing lubricating grease according to claim 2, characterized in that: The groove (15) is in the shape of a truncated cone.

4. The conveyor chain capable of storing lubricating grease according to claim 1, characterized in that: Both ends of the sleeve (3) and the pin shaft (1) are sealed by labyrinth seals (6), the labyrinth seal (6) is provided with a cavity (7), a sealing ring (8) is provided in the cavity (7), and the cavity (7) in the sealing ring (8) stores lubricating oil.

5. A conveyor chain capable of storing lubricating grease according to claim 4, characterized in that: The cavity (7) in the sealing ring (8) is provided with an oil storage sponge (9).

6. The conveyor chain capable of storing lubricating grease according to claim 4, characterized in that: The labyrinth seal (6) is composed of an inner cover (61) and an outer cover (62) that are fitted together. A retaining ring I (63) and a retaining ring II (64) are provided on the edges of the inner cover (61) and the outer cover (62), respectively. The retaining ring I (63) is located inside the retaining ring II (64). The retaining ring I (63) and the retaining ring II (64) constitute a labyrinth seal. The space between the inner cover (61) and the outer cover (62) constitutes a cavity (7).

7. A conveyor chain capable of storing lubricating grease according to claim 6, characterized in that: The inner cover (61) is provided on the sleeve (3) and is fitted with the outer side surface of the corresponding inner link plate (4); the outer cover (62) is provided on the pin shaft (1) and is fitted with the inner side surface of the corresponding outer link plate (2).

8. The conveyor chain capable of storing lubricating grease according to claim 4, characterized in that: Both ends of the sleeve (3) are provided with a plurality of oil inlets (10) located in the cavity (7).

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