Anti-slip transmission chain wheel

Abstract

The utility model relates to the technical field of chain wheels, and discloses an anti-slip transmission chain wheel which comprises a chain wheel body and a shaft barrel fixedly connected to one side of the chain wheel body, and further comprises a ratchet device arranged on the outer surface of the shaft barrel and used for preventing the chain wheel body from slipping. The novel chain wheel is compact and reasonable in structural design, the problem that the chain is prone to slipping during transmission due to the fact that the wheel teeth of a common chain wheel cannot be well meshed with the chain is solved, and the transmission efficiency of the chain wheel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sprocket wheels, in particular to an anti-skid transmission sprocket wheel. Background Art

[0002] A sprocket is a wheel with cog-type sprocket teeth. Its main function is to mesh with the block with accurate pitch on the link chain or cable, so as to realize the transmission of power and the operation of mechanical equipment. Sprockets play an important role in mechanical transmission systems. They can transmit power from one shaft to another and drive the operation of the entire mechanical equipment. The structure of sprockets is relatively complex, usually consisting of gears, hubs, teeth, tooth gaps and shaft holes. The distance between its gears and teeth is determined by the chain. The coordination between the gears and the chain needs to be in the best state to ensure the efficiency and stability of power transmission. The working principle of the sprocket is to transmit power through the chain. During the working process, the gears of the sprocket and the chain are engaged with each other. When the gears rotate, the chain slides along the gears to achieve the purpose of transmitting force and motion. However, when the general sprocket and chain rotate for a long time, the chain and the sprocket will become loose, so that the sprocket teeth cannot mesh well with the chain, making the chain easy to slip during transmission. For this reason, we propose an anti-slip transmission sprocket. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides an anti-skid transmission sprocket to solve the above-mentioned problems.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-skid transmission sprocket, comprising a sprocket body and a shaft cylinder fixedly connected to one side of the sprocket body, and also comprising:

[0005] The outer surface of the shaft cylinder is provided with a ratchet device for preventing the sprocket body from slipping;

[0006] The ratchet device includes a connecting steel ring, a connecting rod, a one-way plate, a ratchet ring, a pawl plate, a spring, a limit plate, a linkage rod and a roller. One end of the shaft cylinder is movably connected with the one-way plate, the outer surface of the one-way plate is fixedly connected with two springs, and one end of the one-way plate is fixedly connected with the limit plate, one end of the two springs is respectively fixedly connected with a pawl plate, one end of the two pawl plates is movably connected with the ratchet ring, the outer surface of the ratchet ring is fixedly connected with a connecting rod, one end of the connecting rod is fixedly connected with the connecting steel ring, one end of the connecting steel ring is fixedly connected with the linkage rod, and one end of the linkage rod is movably connected with the roller.

[0007] The surface of the sprocket body is provided with a hole structure for heat dissipation.

[0008] Preferably, three connecting rods are provided, and one end of the three connecting rods is fixedly connected to the inner wall of the connecting steel ring, and the other end of the three connecting rods is fixedly connected to the outer surface of the ratchet ring.

[0009] Preferably, two grooves are formed on the outer surface of the one-way plate, and one end of the two springs are respectively fixedly connected to the one-way plate corresponding to the inside of the two grooves, and the ratchet plate and the spring are fixedly connected at an angle, and the two ratchet plates have an inclination angle of degrees.

[0010] Preferably, the inner wall of the ratchet ring is in a rack shape, and one side of the ratchet ring and one side of the limiting plate are in close contact with each other, and one side of the ratchet ring is movably connected to one side of the limiting plate.

[0011] Preferably, the hole structure includes through holes and ventilation holes, the outer surface of the sprocket body is provided with through holes, and the outer surface of the shaft cylinder is provided with ventilation holes.

[0012] Preferably, six through holes and six ventilation holes are provided, and the six through holes are arranged in a ring shape around the center point of the sprocket body, and the six ventilation holes are arranged in a ring shape around the center point of the shaft cylinder.

[0013] Compared with the prior art, the utility model provides an anti-skid transmission sprocket, which has the following beneficial effects:

[0014] 1. The anti-skid transmission sprocket drives the roller to one side of the sprocket body through the rotating connecting steel ring, thereby driving the roller to move to one side of the sprocket body through the linkage rod fixedly connected thereto, thereby clamping the chain to a certain extent, so that the chain can be tightly wrapped around the sprocket body, preventing the chain and the sprocket body from being too loose and slipping when the chain and the sprocket body are rotating.

[0015] 2. The anti-slip transmission sprocket uses the ratchet plate and spring on the outer surface of the one-way plate so that when the connecting steel ring drives the roller to rotate in the reverse direction, it will drive the ratchet ring to move in the reverse direction through three connecting rods, so that one end of the ratchet plate will be stuck in the groove of the rack on the inner wall of the ratchet ring, so that the ratchet ring cannot rotate, and the connecting steel ring cannot drive the roller to move in the reverse direction, so that the chain will not drive the roller to shift in position during the transmission process, thereby preventing the roller from being unable to clamp the chain to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a side schematic diagram of the sprocket of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the ratchet device of the utility model;

[0019] Figure 4 This is a schematic diagram of the hole structure of the utility model;

[0020] Figure 5 It is a partial structural schematic diagram of the ratchet device of the utility model.

[0021] In the figure: 1. sprocket body; 2. shaft cylinder; 3. connecting steel ring; 4. connecting rod; 5. one-way plate; 6. ratchet ring; 7. ratchet plate; 8. spring; 9. limit plate; 10. groove; 11. linkage rod; 12. roller; 13. through hole; 14. ventilation hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 , an anti-skid transmission sprocket, comprising a sprocket body 1 and a shaft cylinder 2 fixedly connected to one side of the sprocket body 1, and further comprising:

[0024] The outer surface of the shaft cylinder 2 is provided with a ratchet device for preventing the sprocket body 1 from slipping;

[0025] The ratchet device includes a connecting steel ring 3, a connecting rod 4, a one-way plate 5, a ratchet ring 6, a pawl plate 7, a spring 8, a limit plate 9, a linkage rod 11 and a roller 12. One end of the shaft tube 2 is movably connected to the one-way plate 5, the outer surface of the one-way plate 5 is fixedly connected to two springs 8, and one end of the one-way plate 5 is fixedly connected to the limit plate 9, one end of the two springs 8 is respectively fixedly connected to a pawl plate 7, one end of the two pawl plates 7 is movably connected to the ratchet ring 6, the outer surface of the ratchet ring 6 is fixedly connected to the connecting rod 4, one end of the connecting rod 4 is fixedly connected to the connecting steel ring 3, one end of the connecting steel ring 3 is fixedly connected to the linkage rod 11, and one end of the linkage rod 11 is movably connected to the roller 12.

[0026] The surface of the sprocket body 1 is provided with a hole structure for heat dissipation.

[0027] Furthermore, three connecting rods 4 are provided, and one end of the three connecting rods 4 is fixedly connected to the inner wall of the connecting steel ring 3 , and the other end of the three connecting rods 4 is fixedly connected to the outer surface of the ratchet ring 6 .

[0028] Furthermore, two grooves 10 are formed on the outer surface of the one-way plate 5, and one end of the two springs 8 are respectively fixedly connected to the one-way plate 5 corresponding to the inside of the two grooves 10, and the ratchet plate 7 and the spring 8 are fixedly connected at an angle, and the two ratchet plates 7 are inclined at an angle of 45 degrees.

[0029] Furthermore, the inner wall of the ratchet ring 6 is in a rack shape, and one side of the ratchet ring 6 and one side of the limiting plate 9 are in close contact with each other, and one side of the ratchet ring 6 is movably connected to one side of the limiting plate 9 .

[0030] Furthermore, the hole structure includes a through hole 13 and a ventilation hole 14 . The through hole 13 is formed on the outer surface of the sprocket body 1 , and the ventilation hole 14 is formed on the outer surface of the shaft cylinder 2 .

[0031] Furthermore, six through holes 13 and six ventilation holes 14 are provided, and the six through holes 13 are arranged in a ring shape around the center point of the sprocket body 1 , and the six ventilation holes 14 are arranged in a ring shape around the center point of the shaft cylinder 2 .

[0032] Working principle: when the sprocket body 1 is needed to transmit, the chain is first put on the sprocket, and then the connecting steel ring 3 is rotated, so that the roller 12 is driven to one side of the sprocket body 1 through the linkage rod 11 fixedly connected thereto, thereby clamping the chain to a certain extent, so that the chain can be tightly put on the sprocket body 1 to prevent the chain and the sprocket body 1 from being too loose and slipping when the chain is rotating. Then, the pawl plate 7 and the spring 8 on the outer surface of the one-way plate 5 are used to make the connecting steel ring 3 drive the roller 12 to rotate in the reverse direction, and the three connecting rods 4 are used to drive the ratchet ring 6 to move in the reverse direction, so that one end of the pawl plate 7 will be stuck in the groove of the rack on the inner wall of the ratchet ring 6, so that the ratchet ring 6 cannot rotate, and the connecting steel ring 3 cannot drive the roller 12 to move in the reverse direction, so that the chain will not drive the roller 12 to deviate in position during the transmission process, so that the chain cannot be clamped to a certain extent.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-slip transmission sprocket, comprising a sprocket body (1) and a shaft cylinder (2) fixedly connected to one side of the sprocket body (1), characterized in that: Also includes: The outer surface of the shaft cylinder (2) is provided with a ratchet device for preventing the sprocket body (1) from slipping; The ratchet device comprises a connecting steel ring (3), a connecting rod (4), a one-way plate (5), a ratchet ring (6), a pawl plate (7), a spring (8), a limit plate (9), a linkage rod (11) and a roller (12); one end of the shaft cylinder (2) is movably connected to the one-way plate (5); the outer surface of the one-way plate (5) is fixedly connected to two springs (8); one end of the one-way plate (5) is fixedly connected to the limit plate (9); one end of the two springs (8) is respectively fixedly connected to a pawl plate (7); one end of the two pawl plates (7) is movably connected to the ratchet ring (6); the outer surface of the ratchet ring (6) is fixedly connected to the connecting rod (4); one end of the connecting rod (4) is fixedly connected to the connecting steel ring (3); one end of the connecting steel ring (3) is fixedly connected to the linkage rod (11); one end of the linkage rod (11) is movably connected to the roller (12); The surface of the sprocket body (1) is provided with a hole structure for dissipating heat therefrom.

2. The anti-slip transmission sprocket according to claim 1, characterized in that: Three connecting rods (4) are provided, and one end of the three connecting rods (4) is fixedly connected to the inner wall of the connecting steel ring (3), and the other end of the three connecting rods (4) is fixedly connected to the outer surface of the ratchet ring (6).

3. The anti-slip transmission sprocket according to claim 1, characterized in that: The outer surface of the one-way plate (5) is provided with two grooves (10), and one end of the two springs (8) is fixedly connected to the one-way plate (5) corresponding to the inside of the two grooves (10), and the ratchet plate (7) and the spring (8) are fixedly connected in an inclined manner, and the two ratchet plates (7) are inclined at an angle of 45 degrees.

4. The anti-slip transmission sprocket according to claim 1, characterized in that: The inner wall of the ratchet ring (6) is in the shape of a rack, and one side of the ratchet ring (6) and one side of the limiting plate (9) are in close contact with each other, and one side of the ratchet ring (6) is movably connected to one side of the limiting plate (9).

5. The anti-slip transmission sprocket according to claim 1, characterized in that: The hole structure comprises a through hole (13) and a ventilation hole (14); the through hole (13) is provided on the outer surface of the sprocket body (1), and the ventilation hole (14) is provided on the outer surface of the shaft cylinder (2).

6. The anti-slip transmission sprocket according to claim 5, characterized in that: Six through holes (13) and six ventilation holes (14) are provided, and the six through holes (13) are arranged in a ring shape around the center point of the sprocket body (1), and the six ventilation holes (14) are arranged in a ring shape around the center point of the shaft cylinder (2).

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