Roller chain structure

Abstract

The utility model provides a roller chain structure, belongs to the technical field of roller chains, and aims at solving the problems that under the condition that lubrication of an existing roller chain is insufficient, abrasion of the matching surface of a pin shaft and a sleeve is aggravated, the pin shaft is prone to falling off, and some difficulties exist when workers conduct butt joint installation on the head end and the tail end of the chain. Comprising inner chain plates, the front ends and the rear ends of the inner chain plates are of arc-shaped structures, two round holes are formed in the surfaces of the inner chain plates, the two sets of inner chain plates are symmetrically arranged, two sleeves are fixedly installed between the two inner chain plates, and the sleeves communicate with the round holes. According to the chain, the first clamping grooves are formed in the first through holes in the surfaces of the outer chain plates, so that when the two ends of the pin shaft are extruded, the compressed part of the pin shaft can be clamped in the first clamping grooves in the first through holes, the limiting effect on the pin shaft is achieved, and therefore the pin shaft can be prevented from sliding out of the sleeve; and the stability of the chain is also improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of roller chains, and more specifically, relates to a roller chain structure. Background Art

[0002] The chain is the main component of the motorcycle transmission system, responsible for transmitting the power of the engine to the rear wheel, thereby driving the vehicle. The roller chain has strong environmental adaptability and good vibration absorption ability, which can reduce vibration during operation and make the movement smoother.

[0003] However, the current roller chains still have some shortcomings in use:

[0004] First, the roller chains are connected by pins. In the case of insufficient lubrication, it is difficult for the lubricant to form an effective oil film, resulting in increased wear on the mating surfaces of the pins and sleeves, which can easily cause the pins to fall off.

[0005] Secondly, workers still have some difficulties when docking and installing the ends of the chain, which makes it impossible for ordinary people to dock the chain by themselves when they encounter a chain breakage outdoors. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a roller chain structure to solve the problem that when the existing roller chain is insufficiently lubricated, the mating surfaces of the pin and the sleeve are aggravated, which easily leads to the pin falling off, and there are still some difficulties for workers when docking and installing the two ends of the chain.

[0007] The purpose and effect of a roller chain structure of the utility model are achieved by the following specific technical means: a roller chain structure, comprising an inner link plate;

[0008] The front and rear ends of the inner link plate are arc-shaped structures, and two circular holes are provided on the surface of the inner link plate. The inner link plate is symmetrically provided with two groups, and two sleeves are fixedly installed between the two inner link plates, and the sleeves are connected to the circular holes;

[0009] The outer link plate has an arc-shaped structure at its front and rear ends, and two first through holes are provided on the surface of the outer link plate. The outer link plate is symmetrically provided with two first through holes, and is located outside the inner link plate.

[0010] A pin shaft is clamped in the sleeve and the first through hole on the surface of the outer link plate to connect the outer link plate and the inner link plate together;

[0011] The butt joint plates are symmetrically provided with two of them, a second through hole is provided on the left side of the butt joint plate, and an arc groove is provided in the middle of the right end surface of the butt joint plate;

[0012] There are two limit plates, one above the other, and a connection groove on the surface of the limit plates;

[0013] a locking screw, wherein the locking screw is threadedly connected in the connecting groove;

[0014] A stopper, wherein a through hole in the up-down direction is opened inside the stopper, and a clamping plate is fixedly installed in the middle position of the inner end surface of the stopper;

[0015] A connecting shaft is clamped in the arc groove on the right end surface of the docking plate.

[0016] Furthermore, a roller is sleeved on the outside of the sleeve, and two ends of the roller are respectively fitted with two inner link plates.

[0017] Furthermore, a first card slot is provided inside the first through hole, and a second card slot is provided on the inner end surface of the second through hole at the left end of the docking plate. The second card slot has the same structure as the first card slot.

[0018] Furthermore, the upper and lower end surfaces of the stopper are fitted with the inner end surface of the limiting plate, and the clamping plate at the inner end of the stopper is a semicircular structure.

[0019] Furthermore, a transverse sliding groove is provided on the inner end surface of the limiting plate, and a limiting block is respectively installed on the upper and lower ends of the clamping plate, and the limiting block is slidably clamped in the transverse sliding groove on the inner end surface of the limiting plate.

[0020] Furthermore, two groups of thread grooves are symmetrically provided on the outside of the connecting shaft, and the thread grooves are internally threadedly connected to limit screws.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the present invention, the roller is sleeved on the outside of the sleeve, so that when the chain is transmitted, the roller can rotate, thereby reducing the resistance of the chain during operation. The outer link plate and the inner link plate are riveted together by a pin shaft, and a first clamping groove is provided inside the first through hole on the surface of the outer link plate. When the two ends of the pin shaft are squeezed, the compressed part of the pin shaft will be clamped in the first clamping groove inside the first through hole, which plays a role in limiting the pin shaft, thereby preventing the pin shaft from slipping out of the sleeve and improving the stability of the chain.

[0023] In addition, two limit plates are installed on the outer end face of the docking plate, which can clamp the connecting shaft in the sleeve outside the inner chain plate at the end of the chain, and push the connecting shaft into the arc groove on the right end surface of the docking plate. At this time, the stopper can be clamped between the two limit plates, so that the through hole inside the stopper is aligned with the connecting groove on the surface of the limit plate. At this time, the worker can thread the locking screw into the connecting groove on the surface of the limit plate to fix the stopper, and the inner end face of the stopper is fixed with a clamping plate. The inner end face of the clamping plate is an arc structure, and the clamping plate fits with the outside of the connecting shaft, which can improve the stability of the connecting shaft.

[0024] In addition, the limit blocks on the upper and lower ends of the card plate are slidably mounted in the horizontal sliding grooves on the inner end surface of the limit plate, so that the card plate and the block will not swing left and right, and four thread grooves are symmetrically opened on the surface of the connecting shaft, and the internal threads of the thread grooves are connected to the limit screws. When the limit screws are threadedly connected to the inside of the thread grooves, the limit screws fit with the outer end surfaces of the limit plates, which can fix the connecting shaft between the two limit plates, thereby improving the stability of the connecting shaft and facilitating the disassembly and assembly of the chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall device structure of the utility model.

[0026] Figure 2 It is a schematic diagram of the inner link plate and sleeve structure of the utility model.

[0027] Figure 3 It is a structural schematic diagram of the connecting shaft and the docking plate of the utility model.

[0028] Figure 4 It is a schematic diagram of the cross-sectional structure of the limiting plate of the utility model.

[0029] Figure 5 It is a schematic diagram of the stopper and the clamping plate structure of the utility model.

[0030] Figure 6 It is a schematic cross-sectional structural diagram of the sleeve and the roller of the utility model.

[0031] In the figure, the corresponding relationship between component names and drawing numbers is as follows:

[0032] 1. Inner link plate; 101. Sleeve; 102. Roller; 2. Outer link plate; 201. First through hole; 2011. First retaining groove; 3. Pin; 4. Docking plate; 401. Second through hole; 4011. Second retaining groove; 5. Limiting plate; 501. Horizontal slide groove; 502. Connecting groove; 6. Locking screw; 7. Stop block; 701. Through hole; 8. Retaining plate; 801. Limiting block; 9. Connecting shaft; 901. Threaded groove; 10. Limiting screw. DETAILED DESCRIPTION

[0033] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples.

[0034] Example 1:

[0035] As attached Figure 1 To the attached Figure 6 As shown:

[0036] The utility model provides a roller chain structure, comprising an inner link plate 1;

[0037] The front and rear ends of the inner link plate 1 are arc-shaped structures. Two circular holes are opened on the surface of the inner link plate 1. Two groups of inner link plates 1 are symmetrically provided. Two sleeves 101 are fixedly installed between the two inner link plates 1. The sleeves 101 are connected to the circular holes.

[0038] The outer link plate 2 has an arc-shaped structure at its front and rear ends. Two first through holes 201 are provided on the surface of the outer link plate 2. The outer link plate 2 has two symmetrical through holes. The outer link plate 2 is located outside the inner link plate 1.

[0039] The pin 3 is clamped in the sleeve 101 and the first through hole 201 on the surface of the outer link plate 2 to connect the outer link plate 2 and the inner link plate 1 together;

[0040] The docking plate 4 is symmetrically provided with two, a second through hole 401 is opened at the left side of the docking plate 4, and an arc groove is opened in the middle of the right end surface of the docking plate 4;

[0041] The limiting plate 5 is provided with two upper and lower limiting plates 5, and the surface of the limiting plate 5 is provided with a connecting groove 502;

[0042] A locking screw 6, which is threadedly connected to the connecting groove 502;

[0043] The stopper 7 has a through hole 701 extending in the vertical direction, and a clamping plate 8 is fixedly mounted in the middle of the inner end surface of the stopper 7;

[0044] The connecting shaft 9 is clamped in the arc groove on the right end surface of the docking plate 4.

[0045] Among them, the outer part of the sleeve 101 is sleeved with a roller 102, and the two ends of the roller 102 are respectively fitted with the two inner link plates 1, a first card groove 2011 is opened inside the first through hole 201, and a second card groove 4011 is opened on the inner end surface of the second through hole 401 at the left end of the docking plate 4. The second card groove 4011 has the same structure as the first card groove 2011. When the two ends of the pin shaft 3 are squeezed, the compressed part of the pin shaft 3 will be clamped in the first card groove 2011 inside the first through hole 201, which plays a role in limiting the pin shaft 3, thereby preventing the pin shaft 3 from slipping out of the sleeve 101 and improving the stability of the chain.

[0046] Among them, the upper and lower end surfaces of the stopper 7 are fitted with the inner end surface of the limit plate 5, and the clamping plate 8 at the inner end of the stopper 7 is a semicircular structure, which can increase the contact area with the connecting shaft 9 and improve the stability of the connecting shaft 9.

[0047] Among them, a horizontal slide groove 501 is opened on the inner end surface of the limit plate 5, and a limit block 801 is installed at the upper and lower ends of the card plate 8 respectively. The limit block 801 is slidably mounted in the horizontal slide groove 501 on the inner end surface of the limit plate 5. The limit blocks 801 at the upper and lower ends of the card plate 8 are slidably mounted in the horizontal slide groove 501 on the inner end surface of the limit plate 5, so that the card plate 8 and the stop block 7 will not swing left and right.

[0048] Among them, two groups of thread grooves 901 are symmetrically opened on the outside of the connecting shaft 9, and the internal threads of the thread grooves 901 are connected to the limiting screw 10. When the limiting screw 10 is threadedly connected to the inside of the thread groove 901, the limiting screw 10 fits with the outer end surface of the limiting plate 5, and the connecting shaft 9 can be fixed between the two limiting plates 5, thereby improving the stability of the connecting shaft 9.

[0049] The specific usage and function of this embodiment are as follows:

[0050] In the present invention, the roller 102 is sleeved with the outside of the sleeve 101, so that when the chain is transmitted, the roller 102 can rotate to reduce the resistance of the chain during operation. The outer link plate 2 and the inner link plate 1 are riveted together by the pin 3. A first slot 2011 is provided inside the first through hole 201 on the surface of the outer link plate 2, so that when the two ends of the pin 3 are squeezed, the compressed part of the pin 3 will be clamped in the first slot 2011 inside the first through hole 201, which plays a role in the pin 3. The limiting effect of the sleeve 101 can prevent the pin shaft 3 from sliding out of the sleeve 101, and also improve the stability of the chain. When the two ends of the chain need to be butt-jointed, two butt-jointing plates 4 can be used. The left end of the butt-jointing plate 4 is provided with a second through hole 401. The pin shaft 3 passes through the second through hole 401 and the left end of the butt-jointing plate 4 can be installed at the front end position of the chain. Two limiting plates 5 are installed on the outer end surface of the butt-jointing plate 4. The worker can clamp the connecting shaft 9 into the sleeve 101 outside the inner link plate 1 at the end of the chain and connect The connecting shaft 9 is pushed into the arc groove on the right end surface of the docking plate 4. At this time, the stopper 7 can be clamped between the two limit plates 5, so that the through hole 701 inside the stopper 7 is aligned with the connecting groove 502 on the surface of the limit plate 5. At this time, the worker can thread the locking screw 6 into the connecting groove 502 on the surface of the limit plate 5 to fix the stopper 7. The inner end surface of the stopper 7 is fixedly installed with a clamping plate 8. The inner end surface of the clamping plate 8 is an arc-shaped structure. The clamping plate 8 fits the outer side of the connecting shaft 9, which can improve the stability of the connecting shaft 9. The limit blocks 801 at the upper and lower ends of the card plate 8 are slidably mounted in the horizontal sliding groove 501 on the inner end surface of the limit plate 5, so that the card plate 8 and the stop block 7 will not swing left and right, and four thread grooves 901 are symmetrically opened on the surface of the connecting shaft 9. The internal threads of the thread grooves 901 are connected to the limit screw 10. When the limit screw 10 is threadedly connected to the inside of the thread grooves 901, the limit screw 10 fits with the outer end surface of the limit plate 5, which can fix the connecting shaft 9 between the two limit plates 5, thereby improving the stability of the connecting shaft 9.

Claims

1. A roller chain structure, characterized in that: The invention comprises an inner link plate (1), wherein the front and rear ends of the inner link plate (1) are arc-shaped structures, two circular holes are provided on the surface of the inner link plate (1), and two groups of inner link plates (1) are symmetrically provided. Two sleeves (101) are fixedly installed between the two inner link plates (1), and the sleeves (101) are connected to the circular holes; an outer link plate (2), wherein the front and rear ends of the outer link plate (2) are arc-shaped structures, two first through holes (201) are provided on the surface of the outer link plate (2), and the outer link plate (2) is symmetrically provided with two through holes, and the outer link plate (2) is located outside the inner link plate (1); and a pin shaft (3), wherein the pin shaft (3) is clamped in the sleeve (101) and the first through hole (201) on the surface of the outer link plate (2), and connects the outer link plate (2) and the inner link plate (1). connected together; a docking plate (4), wherein the docking plates (4) are symmetrically provided with two, a second through hole (401) is provided at the left position of the docking plate (4), and an arc groove is provided in the middle of the right end surface of the docking plate (4); a limiting plate (5), wherein the limiting plates (5) are provided with two upper and lower parts, and a connecting groove (502) is provided on the surface of the limiting plate (5); a locking screw (6), wherein the locking screw (6) is threadedly connected in the connecting groove (502); a stopper (7), wherein a through hole (701) in the upper and lower directions is provided inside the stopper (7), and a clamping plate (8) is fixedly installed in the middle position of the inner end surface of the stopper (7); a connecting shaft (9), wherein the connecting shaft (9) is clamped in the arc groove on the right end surface of the docking plate (4).

2. A roller chain structure according to claim 1, characterized in that: The outer portion of the sleeve (101) is sleeved with a roller (102), and both ends of the roller (102) are respectively fitted with the two inner link plates (1).

3. A roller chain structure according to claim 1, characterized in that: A first card slot (2011) is provided inside the first through hole (201), and a second card slot (4011) is provided on the inner end surface of the second through hole (401) at the left end of the docking plate (4). The second card slot (4011) has the same structure as the first card slot (2011).

4. A roller chain structure according to claim 1, characterized in that: The upper and lower end surfaces of the stopper (7) are fitted with the inner end surface of the limiting plate (5), and the clamping plate (8) at the inner end of the stopper (7) is a semicircular structure.

5. The roller chain structure according to claim 1, wherein: The inner end surface of the limiting plate (5) is provided with a transverse sliding groove (501), and the upper and lower ends of the clamping plate (8) are respectively installed with a limiting block (801), and the limiting block (801) is slidably clamped in the transverse sliding groove (501) on the inner end surface of the limiting plate (5).

6. A roller chain structure according to claim 1, characterized in that: Two groups of thread grooves (901) are symmetrically formed on the outside of the connecting shaft (9), and the thread grooves (901) are internally threadedly connected to a limiting screw (10).

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