Anti-skid crankshaft chain wheel

Abstract

The utility model discloses an anti-skidding crankshaft chain wheel, which relates to the technical field of chain wheel transmission, and comprises a chain wheel steel frame, the left end surface of the chain wheel steel frame is fixedly connected with a second limiting disc, the right side surface of the chain wheel steel frame is provided with a wheel seat, the surface of the wheel seat is fixedly provided with chain wheel teeth, and the middle part of a fixed seat is provided with a clamping groove. A clamping groove is formed in the upper portion of the chain wheel, a transmission roller is arranged in the clamping groove, a fixing ring is in threaded connection with the surface of the transmission roller, a fixing plate is arranged on the left side of the fixing ring, a first limiting disc is fixedly connected with the surface of the fixing ring, and an anti-disengaging mechanism is arranged on the right side of the fixing ring. Through cooperation of a sliding rod, a spring, a movable frame and a rotating roller, the chain is limited, a first limiting disc and a second limiting disc are matched, the chain is prevented from falling off in the using process, meanwhile, an anti-falling mechanism limits and restrains a fixing ring through a limiting rod, and the overall stability of the clamping structure is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of sprocket transmission, and particularly relates to an anti-slip crankshaft sprocket. Background Art

[0002] A sprocket is a wheel with toothed chain pins used to engage with accurately pitched blocks on a chain link or cable. Sprockets are widely used in mechanical transmissions in industries such as chemical engineering, textile machinery, escalators, wood processing, multi-story parking garages, agricultural machinery, food processing, instrumentation, and petroleum.

[0003] During the use of a sprocket, it is prone to slipping, which may cause the chain to disengage. This could be due to looseness between the chain and the sprocket, or slippage at the connection between the sprocket and its power output port. Therefore, a sprocket with an anti-slip and anti-disengagement structure is needed to ensure that it does not easily fall off during use. Based on this, this solution provides an anti-slip crankshaft sprocket to solve the above problems. Summary of the Utility Model

[0004] To solve the above technical problems, an anti-slip crankshaft sprocket is provided. This technical solution solves the problems raised in the above background art.

[0005] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0006] An anti-slip crankshaft sprocket, comprising a sprocket steel frame. A second limiting disc is fixedly connected to the left end surface of the sprocket steel frame. The right side of the sprocket steel frame is open, and a fixed seat is fixedly connected inside it. A plurality of reinforcing rods are fixedly connected to the surface of the fixed seat, and the other ends of the reinforcing rods are fixedly connected to the inner wall of the sprocket steel frame. A wheel seat is arranged on the right side surface of the sprocket steel frame, and sprocket teeth are fixedly installed on the surface of the wheel seat. A clamping groove is formed in the middle of the fixed seat, a transmission roller is arranged inside the clamping groove, a fixing ring is threadedly connected to the surface of the transmission roller, an installation hole is formed in the middle of the fixing ring, a fixing plate is arranged on the left side of the fixing ring, the fixing plate is sleeved on the surface of the fixed seat, a first limiting disc is fixedly connected to the surface of the fixing ring, a sliding groove is formed on the surface of the fixing ring, the sliding groove is arranged on the right side of the first limiting disc, and an anti-disengagement mechanism is arranged on the right side of the fixing ring.

[0007] Preferably, the anti-disengagement mechanism includes a sleeve ring. The sleeve ring is rotatably installed on the right end surface of the fixing ring. A pair of connecting rods are fixedly connected to the right end of the sleeve ring, and the other ends of the connecting rods are fixedly connected to an external frame. A fixing frame is arranged on the upper side of the sleeve ring, a sliding rod is slidably connected to the top end of the fixing frame, a movable frame is fixedly connected to the lower end of the sliding rod, and a pair of rotating rollers are rotatably installed inside the movable frame.

[0008] Preferably, a spring is sleeved on the surface of the sliding rod. Two ends of the spring are respectively fixedly connected to the inner wall of the top plate of the fixed frame and the upper end of the movable frame. The left side of the lower end of the fixed frame is fixedly connected with a limiting rod, and the other end of the limiting rod is slidably connected to the inner wall of the mounting hole.

[0009] Preferably, several groups of first limiting grooves are formed at the left end of the sprocket steel frame. Second limiting grooves are formed at the outer ends of the reinforcing rods. Several groups of limiting teeth are fixedly connected to the inner wall of the wheel seat. Several groups of third limiting grooves are formed at the left end of the fixing plate. The size and quantity of the limiting teeth are mutually matched with the first limiting grooves, the second limiting grooves and the third limiting grooves.

[0010] Preferably, a clamping joint is fixedly connected to the left end of the transmission roller. The right end of the transmission roller is in transmission connection with the power output port. The clamping joint is in clamping connection with the clamping groove.

[0011] Compared with the prior art, the present utility model provides an anti-slip crank sprocket, which has the following beneficial effects:

[0012] 1. An anti-disengagement mechanism is provided in the present utility model. Through the cooperation of the sliding rod, the spring, the movable frame and the rotating roller, the chain on the sprocket teeth can be effectively limited, preventing the chain from loosening and falling off during use. At the same time, the cooperation of the first limiting disc and the second limiting disc can limit both sides of the chain, strengthening the anti-falling effect.

[0013] 2. In the present utility model, the clamping joint and the clamping groove are in clamping connection, so that the transmission roller drives the fixed seat to rotate, and then drives the sprocket to rotate. At the same time, the sprocket is fixed as a whole through the threaded connection between the fixed ring and the transmission roller. The anti-disengagement mechanism is provided with a limiting rod, and the limiting rod is slidably connected to the fixed ring. The collar is rotatably installed at the right end of the fixed ring, and the anti-disengagement mechanism as a whole is fixed to the external frame through a connecting rod, so that the limiting rod can limit and restrain the fixed ring, preventing it from loosening, and ensuring the overall stability of the clamping structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an exploded schematic view of the overall structure in the present utility model;

[0015] Figure 2 is a schematic view of the overall structure of the present utility model;

[0016] Figure 3 is a schematic view of the connection structure of the fixed ring in the present utility model;

[0017] Figure 4 is a schematic view of the structure of the anti-disengagement mechanism in the present utility model.

[0018] The reference numerals in the drawings are:

[0019] 1. Sprocket steel frame; 101. First limiting groove; 2. Fixed seat; 201. Clamping groove; 3. Reinforcing rod; 301. Second limiting groove; 4. Wheel seat; 401. Limiting teeth; 5. Fixed ring; 501. Chute; 502. Mounting hole; 6. First limiting disc; 7. Second limiting disc; 8. Driving roller; 801. Clamping head; 9. Sprocket teeth; 10. Anti - detachment mechanism; 1001. Collar; 1002. Connecting rod; 1003. Fixed frame; 1004. Slide bar; 1005. Spring; 1006. Movable frame; 1007. Rotating roller; 1008. Limiting rod; 11. Fixed plate; 1101. Third limiting groove. Specific implementation mode

[0020] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0021] Refer to Figures 1-4 As shown, an anti - slip crankshaft sprocket includes a sprocket steel frame 1. The left - end surface of the sprocket steel frame 1 is fixedly connected with a second limiting disc 7. The right side of the sprocket steel frame 1 is open - ended, and a fixed seat 2 is fixedly connected inside it. A plurality of groups of reinforcing rods 3 are fixedly connected to the surface of the fixed seat 2, and the other ends of the reinforcing rods 3 are fixedly connected to the inner wall of the sprocket steel frame 1. A wheel seat 4 is arranged on the right - hand surface of the sprocket steel frame 1, and sprocket teeth 9 are fixedly installed on the surface of the wheel seat 4. A clamping groove 201 is opened in the middle of the fixed seat 2, and a driving roller 8 is arranged inside the clamping groove 201. A fixed ring 5 is threadedly connected to the surface of the driving roller 8. Through the clamping connection of the clamping head 801 and the clamping groove 201, the driving roller 8 drives the fixed seat 2 to rotate, and then drives the sprocket to rotate. At the same time, through the threaded connection of the fixed ring 5 and the driving roller 8, the whole sprocket is fixed. An installation hole 502 is opened in the middle of the fixed ring 5. A fixed plate 11 is arranged on the left side of the fixed ring 5. The fixed plate 11 is sleeved on the surface of the fixed seat 2. A first limiting disc 6 is fixedly connected to the surface of the fixed ring 5. A chute 501 is opened on the surface of the fixed ring 5, and the chute 501 is arranged on the right side of the first limiting disc 6. An anti - detachment mechanism 10 is arranged on the right side of the fixed ring 5. The wheel seat 4 is clamped at the right end of the sprocket steel frame 1 and is clamped and connected through the clamping head 8 and the clamping groove 201. Then, the left end of the fixed plate 11 is sleeved on the surface of the fixed seat 2, and the left end of the fixed plate 11 is clamped with the right end of the wheel seat 4. Then, the fixed ring 5 is threadedly connected to the driving roller 8 to fix the whole sprocket, and the assembly of the sprocket is completed.

[0022] Specifically, in this embodiment, the anti - detachment mechanism 10 includes a collar 1001. The collar 1001 is rotatably installed on the right - hand surface of the fixed ring 5. A pair of connecting rods 1002 are fixedly connected to the right end of the collar 1001, and the other ends of the connecting rods 1002 are fixedly connected to the external frame. A fixed frame 1003 is arranged above the collar 1001. A sliding rod 1004 is slidably connected to the top end of the fixed frame 1003. The lower end of the sliding rod 1004 is fixedly connected to a movable frame 1006. A pair of rotating rollers 1007 are rotatably installed inside the movable frame 1006. When the chain is transmitted on the sprocket, the lower - end surface of the rotating roller 1007 is abutted against the chain. Through the cooperation of the sliding rod 1004, the spring 1005, the movable frame 1006 and the rotating roller 1007, the chain on the sprocket teeth 9 can be effectively limited, preventing the chain from falling off due to loosening during use. At the same time, in cooperation with the first limit disk 6 and the second limit disk 7, the two sides of the chain can be limited, effectively enhancing the overall anti - detachment effect of the device.

[0023] Specifically, in this embodiment, a spring 1005 is sleeved on the surface of the sliding rod 1004. The two ends of the spring 1005 are respectively fixedly connected to the inner wall of the top plate of the fixed frame 1003 and the upper end of the movable frame 1006. A limiting rod 1008 is fixedly connected to the left - hand side of the lower end of the fixed frame 1003. The other end of the limiting rod 1008 is slidably connected to the inner wall of the mounting hole 502. The limiting rod 1008 is slidably connected to the fixed ring 5. The collar 1001 is rotatably installed at the right end of the fixed ring 5, and the whole anti - detachment mechanism 10 is fixedly connected to the external frame through the connecting rod 1002. Thus, the limiting rod 1008 can limit and restrain the fixed ring 5, preventing it from loosening and ensuring the overall stability of the clamping structure.

[0024] Specifically, in this embodiment, a number of first limiting grooves 101 are opened at the left end of the sprocket steel frame 1. Second limiting grooves 301 are opened at the outer ends of the reinforcing rods 3. A number of limiting teeth 401 are fixedly connected to the inner wall of the wheel seat 4. A number of third limiting grooves 1101 are opened at the left end of the fixing plate 11. The sizes and numbers of the limiting teeth 401 are mutually matched with the first limiting grooves 101, the second limiting grooves 301 and the third limiting grooves 1101. During the installation process, by engaging the limiting teeth 401 with the first limiting grooves 101, the second limiting grooves 301 and the third limiting grooves 1101, the assembly and positioning of the sprocket can be quickly completed. At the same time, through the restraint of the limiting teeth 9 and each limiting groove, the sprocket teeth 9 can rotate along with the transmission of the rotating roller 8.

[0025] Specifically, in this embodiment, a clamping joint 801 is fixedly connected to the left end of the transmission roller 8. The right end of the transmission roller 8 is in transmission connection with the power output port, and the clamping joint 801 is in clamping connection with the clamping groove 201. The overall shape of the clamping groove 201 is a regular hexagon, and three mutually separated ends of the hexagon are each provided with a protrusion, which, in cooperation with the fixing ring 5 and the anti - detachment mechanism 10, ensures that no slipping or detachment occurs during the transmission process.

[0026] The working principle of the present utility model is as follows: By engaging the limiting teeth 401 with the first limiting groove 101, the second limiting groove 301, and the third limiting groove 1101, the assembly and positioning of the sprocket are quickly completed. Then, the wheel seat 4 is clamped to the right end of the sprocket steel frame 1, and is in clamping connection with the clamping groove 201 through the clamping joint 8. Subsequently, the left end of the fixing plate 11 is sleeved on the surface of the fixing seat 2, and the left end of the fixing plate 11 is clamped to the right end of the wheel seat 4. Then, the fixing ring 5 is threadedly connected to the transmission roller 8 to fix the entire sprocket, completing the assembly of the sprocket.

[0027] Through the rotation of the transmission roller 8, the sprocket is driven to rotate. When the chain is transmitted on the sprocket, the lower surface of the rotating roller 1007 is abutted against the chain. Through the cooperation of the sliding rod 1004, the spring 1005, the movable frame 1006, and the rotating roller 1007, the chain on the sprocket teeth 9 can be effectively limited, preventing the chain from falling off due to loosening during use. At the same time, in cooperation with the first limiting disc 6 and the second limiting disc 7, the two sides of the chain can be limited, effectively enhancing the anti - detachment effect of the entire device. Meanwhile, the anti - detachment mechanism 10 is fixedly connected to the external frame through the connecting rod 1002, so that the limiting rod 1008 can limit and restrain the fixing ring 5, preventing it from loosening and ensuring the stability of the overall clamping structure.

[0028] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above - mentioned embodiments. The above - mentioned embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An anti-slip crankshaft sprocket, characterized in that, It includes a sprocket steel frame (1). A second limit disc (7) is fixedly connected to the left end surface of the sprocket steel frame (1). The right side of the sprocket steel frame (1) is open, and a fixed seat (2) is fixedly connected inside it. A number of reinforcing rods (3) are fixedly connected to the surface of the fixed seat (2), and the other ends of the reinforcing rods (3) are fixedly connected to the inner wall of the sprocket steel frame (1). A wheel seat (4) is arranged on the right surface of the sprocket steel frame (1), and sprocket teeth (9) are fixedly installed on the surface of the wheel seat (4). A clamping groove (201) is formed in the middle of the fixed seat (2), a transmission roller (8) is arranged inside the clamping groove (201), a fixing ring (5) is threadedly connected to the surface of the transmission roller (8), an installation hole (502) is formed in the middle of the fixing ring (5), a fixing plate (11) is arranged on the left side of the fixing ring (5), the fixing plate (11) is sleeved on the surface of the fixed seat (2), a first limit disc (6) is fixedly connected to the surface of the fixing ring (5), a sliding groove (501) is formed on the surface of the fixing ring (5), the sliding groove (501) is arranged on the right side of the first limit disc (6), and an anti - detachment mechanism (10) is arranged on the right side of the fixing ring (5).

2. The anti-slip crankshaft sprocket according to claim 1, wherein: The anti - detachment mechanism (10) includes a sleeve ring (1001). The sleeve ring (1001) is rotatably installed on the right end surface of the fixing ring (5). A pair of connecting rods (1002) are fixedly connected to the right end of the sleeve ring (1001), and the other ends of the connecting rods (1002) are fixedly connected to an external frame. A fixing frame (1003) is arranged on the upper side of the sleeve ring (1001), a sliding rod (1004) is slidably connected to the top end of the fixing frame (1003), a movable frame (1006) is fixedly connected to the lower end of the sliding rod (1004), and a pair of rotating rollers (1007) are rotatably installed inside the movable frame (1006).

3. The anti-slip crankshaft sprocket according to claim 2, characterized in that: A spring (1005) is sleeved on the surface of the sliding rod (1004), and the two ends of the spring (1005) are respectively fixedly connected to the inner wall of the top plate of the fixing frame (1003) and the upper end of the movable frame (1006). A limit rod (1008) is fixedly connected to the lower left end of the fixing frame (1003), and the other end of the limit rod (1008) is slidably connected to the inner wall of the installation hole (502).

4. A non-slip crankshaft sprocket according to claim 1, characterized in that: A number of first limit grooves (101) are formed at the left end of the sprocket steel frame (1), second limit grooves (301) are formed at the outer ends of the reinforcing rods (3), a number of limit teeth (401) are fixedly connected to the inner wall of the wheel seat (4), and a number of third limit grooves (1101) are formed at the left end of the fixing plate (11). The sizes and numbers of the limit teeth (401) are respectively matched with those of the first limit grooves (101), the second limit grooves (301) and the third limit grooves (1101).

5. A non-slip crankshaft sprocket according to claim 1, characterized in that: A clamping head (801) is fixedly connected to the left end of the transmission roller (8), the right end of the transmission roller (8) is in transmission connection with a power output port, and the clamping head (801) is in clamping connection with the clamping groove (201).

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