A speed chain sleeve structure

Abstract

The application discloses a kind of multiple speed chain sleeve structures, including inner chain plate, both ends of the one side of the inner chain plate are fixedly connected with pin shaft, the inside of the other end of the pin shaft is provided with fixed hole, the outer surface of the other end of the pin shaft is fixedly connected with outer chain plate, and with the inner chain plate is fixed by the detachable locking piece in the inside fixed hole of pin shaft, the above scheme, sleeve body is not only wear-resistant, strength and hardness are higher, protect pin shaft, avoid that bearing capacity is too big, lead to pin shaft deformation;The inside of sleeve body and roller shaft sleeve is automatically lubricated, lubricate inside, and utilize the action of oil absorption cotton and, single coating lubricating oil is kept for a longer period of time, reduce the frequency of oiling, and inside lubrication is more uniform and sufficient, improve lubricating effect;Reduce the loss of lubricating oil, simultaneously, air dust is blocked, reduce the influence of air dust on the friction between sleeve body and pin shaft and roller.

Description

Technical Field

[0001] This invention relates to the field of speed-multiplying chain technology, and more specifically, to a speed-multiplying chain sleeve structure. Background Technology

[0002] Chain drive is a widely used mechanical transmission. A double-speed chain is a type of chain drive structure, specifically a roller conveyor chain. On the conveyor line, the chain's movement speed remains constant, but the tooling plates and workpieces being conveyed above the chain can have their movement controlled according to the user's requirements. The chain stops at the desired position for the operator to perform various assembly operations. After these operations are completed, the workpiece continues to move forward. Therefore, a double-speed conveyor chain can also be called a rhythmic conveyor chain, a free-rhythm conveyor chain, a double-speed chain, a differential chain, or a differential chain. A double-speed chain consists of six parts: inner chain plate, sleeve, roller, wheel, outer chain plate, and pin.

[0003] Most existing double-speed chain bushing structures are relatively simple, and are mostly fixed together with the sprocket. The main function of the bushing is to reduce friction between the pin and the roller and protect the pin. However, since the rollers and sprockets roll on the outer surface of the bushing during operation, prolonged use can easily lead to the consumption of internal lubricating oil, resulting in increased friction and less smooth rotation of the rollers and sprockets, thus affecting the service life of the double-speed chain. In addition, to prevent the rollers from deviating during rolling, the two ends of the bushing are often limited, making it difficult to add internal lubricating oil, or the oil may not be added evenly or sufficiently, resulting in repeated adding of lubricating oil, which is not convenient to use.

[0004] Therefore, based on years of experience in design, development, and manufacturing in this industry, the inventor has researched and improved upon existing structures and shortcomings, providing a double-speed chain sleeve structure. This structure aims to achieve the following: the sleeve body is not only wear-resistant, but also possesses high strength and hardness, protecting the pin and preventing excessive load-bearing capacity that could cause pin deformation; it also provides automatic lubrication for the sleeve body and roller bushing, utilizing absorbent cotton to extend the lubricant retention time after a single application, reducing the frequency of oiling and ensuring more even and thorough internal lubrication; it reduces lubricant loss and simultaneously blocks airborne dust, minimizing the impact of dust on friction between the sleeve body, pin, and roller. Summary of the Invention

[0005] To overcome the aforementioned deficiencies of the prior art, embodiments of the present invention provide a double-speed chain sleeve structure. The sleeve body is not only wear-resistant but also possesses high strength and hardness, protecting the pin shaft and preventing excessive load-bearing capacity that could lead to pin shaft deformation. The sleeve body and roller bushing are automatically lubricated internally. Utilizing absorbent cotton, the lubricant applied once is retained for a longer period, reducing the frequency of oiling and ensuring more uniform and thorough internal lubrication, thus improving the lubrication effect. This also reduces lubricant loss and blocks airborne dust, minimizing its impact on the friction between the sleeve body, pin shaft, and rollers, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a double-speed chain sleeve structure, comprising an inner chain plate, pins fixedly connected to both ends of one side of the inner chain plate, a fixing hole provided inside the other end of the pin, an outer chain plate fixedly connected to the outer surface of the other end of the pin, and fixed to the inner chain plate by a detachable locking member inside the fixing hole of the pin, sleeve components movably sleeved on the outer surfaces of the pins at both ends of the inner chain plate, characterized in that roller assemblies movably sleeved on the outer surfaces of the sleeve components, and rollers movably sleeved on the outer surfaces of the roller assemblies;

[0007] The roller includes a wheel body, with rotating holes on both sides of the wheel body. The inside of the wheel body has a sleeve hole corresponding to the roller assembly, and a ball bearing is rotatably installed inside the sleeve hole. The number of the ball bearings is several.

[0008] The roller assembly includes a right insert block and a left fixing block. A roller bushing is fixedly connected to one side of the right insert block, and a fixing head is fixedly connected to the side of the roller bushing. A roller tube is fixedly connected to the other side of the right insert block, and an oil inlet hole is provided inside the roller tube.

[0009] The left fixing block has an inserting sleeve hole on one side, which is inserted into the outer surface of the fixing head. The left fixing block is the same size as the right inserting block, and both are inserted into the rotating holes on both sides of the wheel body. The roller bushing is movably sleeved inside the inserting hole and is movably installed on the outer surface of the ball.

[0010] The right insert block, the roller tube and the roller bushing are all provided with connecting holes. One end of the connecting hole is fixedly connected to the oil inlet hole inside the roller tube. Several flow holes are provided at the bottom of the connecting hole. The connecting hole is fixedly connected to the sleeve through the flow holes.

[0011] In a preferred embodiment, the connecting hole is inclined, and one end of the roller tube is higher than the other end of the roller bushing.

[0012] In a preferred embodiment, the sleeve includes a sleeve body, the outer surface of which is provided with a plurality of interlocking grooves, the positions of which correspond to the flow holes inside the roller bushing.

[0013] In a preferred embodiment, the outer surface of the interlocking groove is movably fitted with oil-absorbing cotton, and the bottom of the interlocking groove is provided with a plurality of oil outlet holes.

[0014] In a preferred embodiment, the sleeve body is made of alloy carburized steel, and the surface of the sleeve body is coated with a wear-resistant ceramic coating. The surface of the wear-resistant ceramic coating is provided with a titanium carbide layer and an ultrafine alloy layer.

[0015] In a preferred embodiment, sealing rings are fixedly connected to both sides inside the sleeve body. The sealing rings are made of rubber. The sleeve body and the sealing rings are movably sleeved on the outer surface of the pin. The sleeve body is fixedly connected to the inside of the right insert block through the oil outlet hole.

[0016] The technical effects and advantages of this invention are as follows:

[0017] This invention sets the sleeve body to be made of alloy carburized steel, and the surface of the sleeve body is coated with a wear-resistant ceramic coating. The surface of the wear-resistant ceramic coating is provided with a titanium carbide layer and an ultra-fine alloy layer, which makes the sleeve body not only wear-resistant, but also has high strength and hardness, thus protecting the pin and preventing excessive load from causing the pin to deform.

[0018] This invention utilizes absorbent cotton to store and transfer lubricating oil, preventing it from flowing directly from the oil outlet into the pin surface and causing excessive oil loss. Furthermore, the absorbent cotton's internal pores create capillary action, absorbing the lubricating oil and evenly dispersing it throughout the cotton. This provides automatic lubrication to the sleeve body and roller bushing, extending the lubricating time of a single application, reducing the frequency of oiling, and ensuring more even and thorough internal lubrication, thus improving the overall lubrication effect.

[0019] This invention achieves comprehensive lubrication without disassembly by providing an oil inlet and a connecting hole. It also reduces the loss of lubricating oil by using a sealing ring, while blocking dust in the air and reducing the impact of air dust on the friction between the sleeve body, the pin, and the roller. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the roller structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the overall structure of the roller assembly of the present invention.

[0023] Figure 4 This is a schematic diagram of the internal structure of the roller assembly of the present invention.

[0024] Figure 5 This is a schematic diagram of the outer surface structure of the sleeve component of the present invention.

[0025] Figure 6 This is a schematic diagram of the right side structure of the sleeve component of the present invention.

[0026] The attached diagram is labeled as follows: 1. Inner chain plate; 2. Pin; 3. Outer chain plate; 4. Roller; 5. Roller assembly; 6. Sleeve component; 41. Wheel body; 42. Rotating hole; 43. Sleeve hole; 44. Ball bearing; 51. Right insert block; 52. Left fixing block; 53. Insert sleeve hole; 54. Roller bushing; 55. Fixing head; 56. Roller tube; 57. Oil inlet hole; 58. Connecting hole; 59. Flow hole; 61. Sleeve body; 62. Insert groove; 63. Oil outlet hole; 64. Oil-absorbing cotton; 65. Sealing ring. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] As attached Figure 1-4The illustrated double-speed chain sleeve structure includes an inner chain plate 1. Pins 2 are fixedly connected to both ends of one side of the inner chain plate 1. The pins 2 have internal fixing holes. An outer chain plate 3 is fixedly connected to the outer surface of the pins 2 and is secured to the inner chain plate 1 via a detachable locking element within the internal fixing hole of the pin 2. Sleeve components 6 are movably sleeved on the outer surfaces of the pins 2 at both ends of the inner chain plate 1. Roller assemblies 5 are movably sleeved on the outer surfaces of the sleeve components 6. Rollers 4 are movably sleeved on the outer surfaces of the roller assemblies 5. Each roller 4 includes a wheel body 41. Rotation holes 42 are provided on both sides of the wheel body 41. Corresponding sleeve holes 43 are provided inside the wheel body 41. The socket 43 is rotatably fitted with a number of balls 44. The roller assembly 5 includes a right insert block 51 and a left fixing block 52. A roller bushing 54 is fixedly connected to one side of the right insert block 51, and a fixing head 55 is fixedly connected to the side of the roller bushing 54. A roller tube 56 is fixedly connected to the other side of the right insert block 51. An oil inlet hole 57 is provided inside the roller tube 56. By setting the balls 44 inside the socket 43, when the wheel body 41 and the surface of the roller bushing 54 rotate relative to each other, sliding friction is replaced by rolling friction, thereby reducing friction, improving the efficiency of the double speed chain drive, and also reducing the noise generated during the transmission process.

[0029] The left fixing block 52 has a fitting hole 53 on one side. The fitting hole 53 is fitted into the outer surface of the fixing head 55. The size of the left fixing block 52 is the same as that of the right fitting block 51, and both are fitted into the rotating holes 42 on both sides of the wheel body 41. The roller bushing 54 is movably fitted into the fitting hole 43 and is movably installed on the outer surface of the ball 44.

[0030] The right insert block 51, the roller tube 56 and the roller bushing 54 are all provided with connecting holes 58. One end of the connecting hole 58 is fixedly connected to the oil inlet hole 57 inside the roller tube 56. Several flow holes 59 are provided at the bottom of the connecting hole 58. The connecting hole 58 is fixedly connected to the sleeve 6 through the flow holes 59. The connecting hole 58 is inclined, and one end of the roller tube 56 is higher than the other end of the roller bushing 54. When lubricating oil is applied to the oil inlet hole 57, the lubricating oil flows to the bottom end through the inclined shape of the connecting hole 58 and under the action of gravity, so that the lubricating oil can be applied to the inside of the sleeve 6.

[0031] As attached Figure 5-6 As shown, the sleeve component 6 includes a sleeve body 61, and a plurality of fitting grooves 62 are provided on the outer surface of the sleeve body 61. The positions of the plurality of fitting grooves 62 correspond to the flow holes 59 inside the roller bushing 54.

[0032] The outer surface of the interlocking groove 62 is movably fitted with an oil-absorbing cotton 64. The bottom of the interlocking groove 62 is provided with several oil outlet holes 63. The oil-absorbing cotton 64 is used to store and transfer the lubricating oil accordingly, preventing the lubricating oil from flowing into the surface of the pin 2 through the oil outlet holes 63 at once, thus preventing the lubricating oil from being lost too quickly. In addition, since the main component of the oil-absorbing cotton 64 is fiber, which is a natural organic polymer compound, and the fibers are interwoven into a network with many gaps, the lubricating oil can be absorbed by capillary action through these gaps, and evenly diffused into the interior of the oil-absorbing cotton 64.

[0033] Among them, the sleeve body 61 is made of alloy carburized steel, and the surface of the sleeve body 61 is coated with a wear-resistant ceramic coating. The surface of the wear-resistant ceramic coating is provided with a titanium carbide layer and an ultra-fine alloy layer, which makes the sleeve body 61 not only wear-resistant, but also has high strength and hardness, thus protecting the pin 2 and preventing excessive load from causing the pin 2 to deform.

[0034] The sleeve body 61 has sealing rings 65 fixedly connected to both sides inside. The sealing rings 65 are made of rubber. The sleeve body 61 and the sealing rings 65 are movably sleeved on the outer surface of the pin 2. The sleeve body 61 is fixedly connected to the inside of the right insert block 51 through the oil outlet hole 63.

[0035] Working principle of the invention: When the roller 4 is used for a long time and the rotation effect is not ideal or the rotation is difficult, lubricating oil can be applied directly to the surface of the roller tube 56 on the side of the wheel body 41. The lubricating oil enters the interior of the connecting hole 58 through the oil inlet hole 57 and flows into the surface of the sleeve body 61 through the flow hole 59. At this time, since the position of the flow hole 59 is opposite to the position of the oil-absorbing cotton 64, the lubricating oil enters the surface of the oil-absorbing cotton 64. The capillary effect generated by the oil-absorbing cotton 64 not only absorbs the lubricating oil, but also evenly diffuses it into the interior of the oil-absorbing cotton 64, thus automatically lubricating the interior of the sleeve body 61 and the roller bushing 54.

[0036] In addition, lubricating oil enters between the sleeve body 61 and the pin 2 through the oil outlet 63 to lubricate the interior. The oil-absorbing cotton 64 not only makes the internal lubrication more uniform but also more thorough, thus achieving full lubrication without disassembly. The sealing ring 65 reduces the loss of lubricating oil and blocks dust in the air, reducing the impact of dust on the friction between the sleeve body 61, the pin 2, and the roller 4.

[0037] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0038] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0039] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A double-speed chain sleeve structure, comprising an inner chain plate (1), wherein pins (2) are fixedly connected to both ends of one side of the inner chain plate (1), the pins (2) have fixing holes inside, and an outer chain plate (3) is fixedly connected to the outer surface of the pins (2), and is fixed to the inner chain plate (1) through a detachable locking member in the fixing hole inside the pins (2), wherein sleeve members (6) are movably sleeved on the outer surfaces of the pins (2) at both ends of the inner chain plate (1), characterized in that, The outer surface of the sleeve (6) is movably fitted with a roller assembly (5), and the outer surface of the roller assembly (5) is movably fitted with a roller (4). The roller (4) includes a wheel body (41), and rotating holes (42) are provided on both sides of the wheel body (41). A sleeve hole (43) corresponding to the roller assembly (5) is provided inside the wheel body (41). A ball (44) is rotatably installed inside the sleeve hole (43). The number of the ball (44) is several. The roller assembly (5) includes a right insert block (51) and a left fixing block (52). A roller bushing (54) is fixedly connected to one side of the right insert block (51), and a fixing head (55) is fixedly connected to the side of the roller bushing (54). A roller tube (56) is fixedly connected to the other side of the right insert block (51), and an oil inlet hole (57) is provided inside the roller tube (56). The left fixing block (52) has a fitting hole (53) on one side. The fitting hole (53) is fitted into the outer surface of the fixing head (55). The size of the left fixing block (52) is the same as that of the right fitting block (51), and both are fitted into the rotating holes (42) on both sides of the wheel body (41). The roller bushing (54) is movably fitted into the fitting hole (43). The roller bushing (54) is movably installed on the outer surface of the ball (44). The right insert block (51), the roller tube (56) and the roller bushing (54) are all provided with connecting holes (58). One end of the connecting hole (58) is fixedly connected to the oil inlet hole (57) inside the roller tube (56). Several flow holes (59) are provided at the bottom of the connecting hole (58). The connecting hole (58) is fixedly connected to the sleeve (6) through the flow holes (59).

2. The speed-doubled chain sleeve structure according to claim 1, characterized in that: The connecting hole (58) is inclined, and one end of the roller tube (56) is higher than the other end of the roller bushing (54).

3. The speed-doubled chain sleeve structure according to claim 2, characterized in that: The sleeve component (6) includes a sleeve body (61), and the outer surface of the sleeve body (61) is provided with a plurality of interlocking grooves (62), the positions of the plurality of interlocking grooves (62) respectively corresponding to the flow holes (59) inside the roller bushing (54).

4. The speed-doubled chain sleeve structure according to claim 3, characterized in that: The outer surface of the interlocking groove (62) is movably fitted with oil-absorbing cotton (64), and the bottom of the interlocking groove (62) is provided with several oil outlet holes (63).

5. The speed-doubled chain sleeve structure according to claim 3, characterized in that: The sleeve body (61) is made of alloy carburized steel, and the surface of the sleeve body (61) is coated with a wear-resistant ceramic coating. The surface of the wear-resistant ceramic coating is provided with a titanium carbide layer and an ultra-fine alloy layer.

6. The speed-doubled chain sleeve structure according to claim 4, characterized in that: Both sides of the sleeve body (61) are fixedly connected to sealing rings (65). The sealing rings (65) are made of rubber. The sleeve body (61) and the sealing rings (65) are movably sleeved on the outer surface of the pin (2). The sleeve body (61) is fixedly connected to the inside of the right insert block (51) through the oil outlet hole (63).

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