CN209797224U

CN209797224U - Driving chain

Info

Publication number: CN209797224U
Application number: CN201920316393.5U
Authority: CN
Inventors: 郑金波
Original assignee: Hangzhou Unibear Industrial Co Ltd
Current assignee: Hangzhou Unibear Industrial Co Ltd
Priority date: 2019-03-13
Filing date: 2019-03-13
Publication date: 2019-12-17
Anticipated expiration: 2029-03-13

Abstract

The utility model discloses a driving chain, including inner plate, outer plate, round pin axle, sleeve and roller, the roller rotates to be connected on the sleeve, be provided with the first ball of a plurality of between the interior anchor ring of telescopic outer anchor ring and roller, be provided with in the roller and be used for carrying out lubricated mechanism lubricated to first ball. The utility model discloses can effectively reduce the wearing and tearing between roller and the sleeve in the driving chain, increase the life of driving chain, reduce the change frequency of driving chain to reduce the maintenance cost of automatic escalator or elevator.

Description

Driving chain

Technical Field

The utility model relates to a driving chain technical field, in particular to driving chain.

Background

At present, a drive chain is required to be used for transmission on the traditional escalator and lift, and a conventional roller chain is generally selected. The driving chain structure comprises an outer chain plate, an inner chain plate, a pin shaft, a sleeve and a roller. The roller is directly sleeved outside the sleeve and can rotate relative to the sleeve. Because the escalator is in a running state for a long time and the load on the driving chain is large, the rollers in the driving chain are easy to seriously wear with the sleeves due to long-time rotation, so that the driving chain is invalid and needs to be frequently replaced, and the maintenance cost of the escalator is increased.

Disclosure of Invention

The utility model aims at solving the problem that the driving chain among escalator or the elevator is worn and torn seriously between long-time use back roller and sleeve, need frequently change the driving chain, lead to the escalator maintenance cost to increase, provide an escalator driving chain, can effectively solve the problem of easy wearing and tearing between roller and the sleeve, reduce the change frequency of driving chain to reduce the maintenance cost of escalator or elevator.

The utility model aims at realizing through the following technical scheme: a driving chain comprises an inner chain plate, an outer chain plate, a pin shaft, a sleeve and a roller, wherein the roller is rotatably connected to the sleeve, a plurality of first balls are arranged between the outer annular surface of the sleeve and the inner annular surface of the roller, and a lubricating mechanism used for lubricating the first balls is arranged in the roller.

The utility model discloses in, the first ball of setting between roller and sleeve can effectively reduce the frictional force between roller and the sleeve, reduces wearing and tearing between the two. The lubricating mechanism can lubricate the balls, further reduces abrasion between the rollers and the sleeves, prolongs the service life of the driving chain, reduces the replacement frequency of the driving chain, and reduces the maintenance cost of the escalator or the elevator.

Preferably, a plurality of first ball grooves matched with the first balls are formed in the inner annular surface of the roller, the first balls are respectively and rotatably connected in the first ball grooves, and the first balls are in rolling contact with the outer annular surface of the sleeve.

Preferably, the lubricating mechanism comprises a lubricating oil cavity which is arranged inside the roller and used for storing lubricating oil, the lubricating oil cavity is annular, and an oil channel is arranged between the lubricating oil cavity and the first ball groove. The lubricating oil cavity is stored with lubricating oil. The lubricating oil in the lubricating oil cavity can enter the first ball groove through the oil passage. When the first ball rotates, lubricating oil can be uniformly coated on the surface of the first ball along with the rotation of the first ball, so that a layer of lubricating oil film is uniformly coated on the outer surface of the first ball, and the abrasion among the first ball, the first ball groove and the sleeve surface is reduced.

Preferably, an oil filling port communicated with the lubricating oil cavity is arranged on the side surface of the roller, and a detachable plug is connected to the oil filling port. Lubricating oil is injected into the lubricating oil cavity through the oil injection port. The plug is used for plugging the oil filling opening and preventing lubricating oil in the lubricating oil cavity from leaking outwards.

Preferably, a second ball is arranged between the inner chain plate and the outer chain plate. Because the drive chain rotates relatively between the inner chain plate and the outer chain plate during operation, the abrasion generated between the inner chain plate and the outer chain plate is also one of factors causing the failure of the drive chain. The second ball bearings are arranged between the inner chain plate and the outer chain plate, so that the friction force between the outer chain plate and the inner chain plate is effectively reduced by the second ball bearings; and the second ball separates outer chain plate and inner chain plate, and both area of contact reduce greatly to greatly reduced the wearing and tearing between the two.

Preferably, a plurality of second ball grooves are formed in the area, opposite to the outer chain plate, of the inner chain plate, the second balls are respectively and rotatably connected into the second ball grooves, and the second balls are in rolling contact with the outer chain plate.

Preferably, a lubricant groove for storing lubricant is provided at one side of the second ball groove. The lubricant is stored in the lubricant groove, and when the second ball rolls, the lubricant can be uniformly coated on the surface of the second ball along with the rolling of the second ball, so that the abrasion among the second ball, the second ball groove and the outer chain plate is reduced.

The utility model has the advantages that: the utility model discloses can effectively reduce the wearing and tearing between roller and the sleeve in the driving chain, increase the life of driving chain, reduce the change frequency of driving chain to reduce the maintenance cost of automatic escalator or elevator.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 1.

Fig. 4 is an enlarged view of a portion B in fig. 1.

In the figure: 1. the chain comprises an inner chain plate, 2, an outer chain plate, 3, a pin shaft, 4, a sleeve, 5, a roller, 6, a lubricating oil cavity, 7, an oil duct, 8, a first ball, 9, an oil filling opening, 10, a plug, 11, a second ball, 12 and a lubricating agent groove.

Detailed Description

The invention will be further described with reference to the following detailed description and accompanying drawings.

Example (b): as shown in fig. 1 to 4, a drive chain includes an inner link plate 1, an outer link plate 2, a pin shaft 3, a bushing 4, and a roller 5. The sleeve 4 is annular. The sleeve 4 is sleeved on the pin shaft. The roller 5 is externally annular. The roller 5 is sleeved on the sleeve 4. The roller 5 is rotatably connected to the sleeve 4. A plurality of first ball grooves are arranged on the inner ring surface of the roller 5. The first ball grooves are uniformly distributed on the inner ring surface of the roller 5. Each first ball groove is rotatably connected with a first ball 8. The first ball grooves are matched with the first balls 8. The first ball groove is hemispherical. The first balls 8 are in rolling contact with the outer circumferential surface of the sleeve 4.

A lubrication mechanism for lubricating the first ball 8 is provided in the roller 5. The lubricating mechanism includes a lubricating oil chamber 6 provided inside the roller 5. The lubricating oil chamber 6 is annular. Lubricating oil is stored in the lubricating oil cavity 6. An oil channel 7 is arranged between the lubricating oil cavity 6 and the first ball groove. Two ends of the oil duct 7 are respectively communicated with the lubricating oil cavity 6 and the first ball groove. The side of the roller 5 is provided with an oil filling opening 9. The oil filler 9 communicates with the lubricating oil chamber 6. The oil filling opening 9 is connected with a detachable plug 10. In this embodiment, the plug 10 is a rubber plug. Lubricating oil in the lubricating oil cavity 6 can enter the first ball groove through the oil duct 7, and when the first ball 8 rotates, the lubricating oil can be uniformly coated on the surface of the first ball 8 along with the rotation of the first ball 8, so that the outer surface of the first ball 8 is uniformly covered with a layer of lubricating oil film, and the abrasion between the first ball 8 and the surfaces of the first ball groove and the sleeve 4 is reduced.

And a second ball 11 is arranged between the inner chain plate 1 and the outer chain plate 2. A plurality of second ball grooves are arranged in the area of the inner chain plate 1, which is opposite to the outer chain plate 2. The second balls 11 are respectively connected in the second ball grooves in a rotating manner. The second balls 11 are in rolling contact with the outer link plate 2. A lubricant groove 12 is provided at one side of the second ball groove. The lubricant groove 12 communicates with the second ball groove. The lubricant tank 12 stores lubricant therein. In this example, the lubricant is grease. When the second balls 11 roll, the lubricant is uniformly coated on the surfaces of the second balls 11 along with the rolling of the second balls 11, and the abrasion between the second balls 11 and the second ball grooves and the outer link plate 2 is reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the principles of the present invention.

Claims

1. The utility model provides a driving chain, includes inner plate (1), outer plate (2), round pin axle (3), sleeve (4) and roller (5), roller (5) rotate to be connected on sleeve (4), its characterized in that: a plurality of first balls (8) are arranged between the outer annular surface of the sleeve (4) and the inner annular surface of the roller (5), and a lubricating mechanism for lubricating the first balls (8) is arranged in the roller (5).

2. A drive chain according to claim 1, wherein the inner annular surface of the roller (5) is provided with a plurality of first ball grooves which are matched with the first balls (8), the first balls (8) are respectively rotatably connected in the first ball grooves, and the first balls (8) are in rolling contact with the outer annular surface of the sleeve (4).

3. A drive chain according to claim 1, wherein the lubricating mechanism comprises a lubricating oil chamber (6) arranged inside the roller (5) for storing lubricating oil, the lubricating oil chamber (6) being annular, and an oil channel (7) being arranged between the lubricating oil chamber (6) and the first ball groove.

4. A drive chain according to claim 3, wherein the side of the roller (5) is provided with an oil filling opening (9) communicating with the oil chamber (6), said oil filling opening (9) being connected to a removable plug (10).

5. A drive chain according to claim 1 or 2 or 3 or 4, characterised in that a second ball (11) is arranged between the inner link plate (1) and the outer link plate (2).

6. A drive chain according to claim 5, characterized in that a plurality of second ball grooves are arranged in the area of the inner link plate (1) facing the outer link plate (2), the second balls (11) are rotatably connected in the second ball grooves, respectively, and the second balls (11) are in rolling contact with the outer link plate (2).

7. A drive chain according to claim 6, wherein a lubricant sump (12) for storing lubricant is provided at one side of the second ball groove.