Belt pulley connecting mechanism

Abstract

The utility model relates to the technical field of belt pulley structures, in particular to a belt pulley connecting mechanism which is provided with a belt pulley installation structure capable of being adjusted inwards, keeps coaxial through follow-up jacking, is convenient to install and improves practicability. Comprising a driving shaft and further comprises a main frame, a threaded sleeve, a puller bolt, a sliding rail, a sliding block, mounting rods, a threaded rod head, a nut, a sleeve head, a sleeve groove, a spoke, a belt wheel and a limiting piece, the rear end of the driving shaft is connected with the middle of the front end of the main frame, the rear side of the interior of the main frame is connected with the front side of the sliding rail, and the rear side of the sliding block is annularly and evenly connected with three sets of mounting rods; the outer side of the front portion of each set of installation rods is connected with a set of limiting pieces, the rear side of each set of installation rods is connected with the front side of a set of threaded rod heads, the outer sides of the threaded rod heads are detachably screwed to the inner side of a nut, three sets of sleeve grooves are evenly connected to the interior of a sleeve head in the circumferential direction, and the outer ring side of the sleeve head is connected with the inner ring side of a belt wheel through spokes. The inner diameter of the sleeve groove is consistent with the outer diameter of the mounting rod.

Description

Technical Field

[0001] The utility model relates to the technical field of pulley structures, in particular to a pulley connecting mechanism. Background Art

[0002] Pulleys are hub-type parts that are generally relatively large in size and are manufactured using casting or forging. Larger designs are generally cast, with cast iron (which has better casting properties) and rarely cast steel (which has poor casting properties). Smaller designs can be forged, with steel being the material. Pulleys are primarily used for long-distance power transmission, such as in small diesel engine outputs, agricultural vehicles, tractors, automobiles, mining machinery, machining equipment, textile machinery, packaging machinery, lathes, forging machines, some low-horsepower motorcycles, agricultural machinery, air compressors, speed reducers, reducers, generators, cotton gins, and more.

[0003] Generally, the pulley and the shaft are matched with the shaft hole and tightened by the nut on the outside. The shaft drives the pulley to rotate. However, since the shaft is a fixed setting at the output end, it is extremely laborious to install the belt again after the pulley is installed, which has poor practicality. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies of the prior art, the present invention provides a pulley connection mechanism that is provided with an inwardly adjustable pulley installation structure and maintains coaxiality through subsequent tightening, is easy to install, and has improved practicality.

[0006] (2) Technical solution

[0007] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket.

[0008] Preferably, a limiting ring is further included, and the front and rear ends of the outer ring side of the pulley are respectively connected to the inner ring side of a group of limiting rings.

[0009] Preferably, anti-loosening washers are further included, and a group of anti-loosening washers are movably provided on the inner side of the nut outside each group of threaded rod heads.

[0010] Preferably, it further comprises an oiling nozzle, wherein the middle portion of the top end of the slider is provided with an oiling nozzle, and the output end of the oiling nozzle is connected to the contact point between the front side of the slider and the slide rail.

[0011] Preferably, it further comprises an oil filling cap, and the outer side of the oil filling nozzle and the inner side of the oil filling cap are detachably mounted.

[0012] Preferably, it further comprises contact pads, and the middle portions of the left and right sides of the slider are respectively connected to the inner sides of a group of contact pads.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the present invention provides a pulley connection mechanism with the following beneficial effects:

[0015] During installation, the pulley to be installed is synchronously sleeved on the outside of the three groups of mounting rods by the three groups of sleeve grooves in the sleeve. After the front side of the sleeve is blocked and limited by the limit plate, multiple groups of nuts are screwed on the outside of the corresponding threaded rod heads respectively, and act on the rear side of the sleeve to tighten. Then, the two groups of tightening bolts are respectively in the external state of the overall frame, and the slider is constrained by the slide rail to move so that it is close to the belt. After the belt is sleeved on the outside of the pulley, the two groups of tightening bolts are screwed inward on the threaded sleeve, so that the slider slides to the middle position of the overall frame on the outside of the slide rail, and acts on the left and right sides of the slider to tighten, so that the sleeve is in the coaxial position of the drive shaft, that is, a fixed connection between the drive shaft and the sleeve is formed, an inwardly adjustable pulley mounting structure is provided, and the coaxiality is maintained through subsequent tightening, which is convenient for installation and improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front axle view of the schematic structural diagram of the utility model;

[0017] Figure 2 This is a rear axle view of the schematic structural diagram of the utility model;

[0018] Figure 3 It is a top view of the utility model;

[0019] Figure 4 It is the rear view of the present utility model.

[0020] Markings in the accompanying drawings: 1. Drive shaft; 2. General frame; 3. Threaded sleeve; 4. Tightening bolt; 5. Slide rail; 6. Slider; 7. Mounting rod; 8. Threaded rod head; 9. Nut; 10. Sleeve head; 11. Sleeve groove; 12. Spoke; 13. Pulley; 14. Limiting ring; 15. Anti-loosening washer; 16. Oiling nozzle; 17. Oiling cap; 18. Contact pad; 19. Limiting plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example

[0023] See also Figure 1-4 , the pulley connection mechanism includes a drive shaft 1, and also includes a main frame 2, a threaded sleeve 3, a tightening bolt 4, a slide rail 5, a slider 6, a mounting rod 7, a threaded rod head 8, a nut 9, a sleeve 10, a sleeve groove 11, a spoke 12, a pulley 13 and a limit plate 19. The rear end of the drive shaft 1 is connected to the middle of the front end of the main frame 2, the rear side of the interior of the main frame 2 is connected to the front side of the slide rail 5, and the outer side of the slide rail 5 is slidably connected to the inner side of the slider 6. A group of threaded sleeves 3 are respectively connected to the left and right sides of the main frame 2. The inner wall of each group of threaded sleeves 3 is respectively screwed with the outer wall of a group of tightening bolts 4. The rear side of the slider 6 is evenly connected to three groups of mounting rods 7 in the annular direction, and the outer side of each group of mounting rods 7 is respectively connected to a group of limiting plates 19. The rear side of each group of mounting rods 7 is respectively connected to the front side of a group of threaded rod heads 8. The outer side of the threaded rod head 8 is detachably screwed to the inner side of the nut 9. The inner annular space 11 of the sleeve 10 is evenly connected to the three groups of sleeve grooves 11. After the belt is sleeved on the outside of the pulley 13, the two sets of tightening bolts 4 are screwed inward on the threaded sleeve 3, so that the slider 6 slides to the middle position of the main frame 2 on the outside of the slide rail 5 and acts on the left and right sides of the slider 6 to tighten, so that the sleeve 10 is in the coaxial position of the drive shaft 1, that is, a fixed connection between the drive shaft 1 and the sleeve 10 is formed.

[0024] It also includes a limiting ring 14, and the front and rear ends of the outer ring side of the pulley 13 are respectively connected to the inner ring side of a group of limiting rings 14; the limiting rings 14 on both sides can limit the front and rear sides of the pulley 13 to prevent the belt from slipping out and improve reliability.

[0025] It also includes anti-loosening washers 15. A group of anti-loosening washers 15 are movably provided on the inner side of the nut 9 outside each group of threaded rod heads 8. The anti-loosening washers 15 can be pushed outward after the nut 9 is screwed and tightened to prevent it from being screwed loose and improve stability.

[0026] It also includes an oiling nozzle 16. An oiling nozzle 16 is provided at the middle of the top of the slider 6. The output end of the oiling nozzle 16 is connected to the contact point between the front side of the slider 6 and the slide rail 5. Oil can be injected into the contact point between the slider 6 and the slide rail 5 through the oiling nozzle 16 to facilitate lubrication.

[0027] It also includes an oil filling cap 17, and the outer side of the oil filling nozzle 16 and the inner side of the oil filling cap 17 are detachably mounted. After the oil filling cap 17 is mounted on the outer side of the oil filling nozzle 16, the interior of the oil filling nozzle 16 can be sealed and protected, thereby improving reliability.

[0028] It also includes a contact pad 18, and the middle of the left and right sides of the slider 6 are respectively connected to the inner side of a group of contact pads 18; the contact pad 18 can contact the inner end of the tightening bolt 4 on that side, providing contact protection for that side of the slider 6, and its deformation and reset can prevent the tightening bolt 4 from loosening, thereby improving reliability.

[0029] In summary, when the pulley connection mechanism is in use, during installation, the pulley 13 to be installed is synchronously sleeved on the outside of the three groups of mounting rods 7 by the three groups of sleeve grooves 11 in the sleeve 10. After the front side of the sleeve 10 is blocked and limited by the limiting piece 19, multiple groups of nuts 9 are screwed on the outside of the corresponding threaded rod heads 8, acting on the rear side of the sleeve 10 to tighten. After the nut 9 is screwed and tightened, it can be supported outwards through the anti-loosening washer 15 to prevent it from being screwed loose. Then, the two groups of tightening bolts 4 are respectively in the external state of the main frame 2, and the slider 6 is constrained to move through the slide rail 5 so that it is close to the side of the belt. The belt is sleeved on the outside of the pulley 13 and the pulley can be tightened through the limiting rings 14 on both sides. 13 front and rear side limit, prevent the belt from slipping out, then screw the two sets of tightening bolts 4, so that they are screwed inward on the threaded sleeve 3, so that the slider 6 slides to the middle position of the main frame 2 on the outside of the slide rail 5, and acts on the left and right sides of the slider 6 to tighten, and the contact pad 18 can contact the inner end of the tightening bolt 4 on that side, providing contact protection for that side of the slider 6, and its deformation reset prevents the tightening bolt 4 from loosening, so that the sleeve 10 is in the coaxial position of the drive shaft 1, that is, a fixed connection between the drive shaft 1 and the sleeve 10 is formed, in addition, the contact point between the slider 6 and the slide rail 5 can be oiled through the oiling nozzle 16 for easy lubrication. After the oiling cap 17 is installed on the outside of the oiling nozzle 16, the inside of the oiling nozzle 16 can be sealed and protected.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pulley connection mechanism comprising a drive shaft (1), characterized in that: The invention also includes a main frame (2), a threaded sleeve (3), a tightening bolt (4), a slide rail (5), a slider (6), a mounting rod (7), a threaded rod head (8), a nut (9), a sleeve head (10), a sleeve groove (11), a spoke (12), a pulley (13) and a limit plate (19), wherein the rear end of the drive shaft (1) is connected to the middle part of the front end of the main frame (2), the rear side of the interior of the main frame (2) is connected to the front side of the slide rail (5), the outer side of the slide rail (5) is slidably connected to the inner side of the slider (6), and a group of threaded sleeves (3) are respectively connected to the interior of the left and right sides of the main frame (2), and the inner wall of each group of threaded sleeves (3) is respectively The slider (6) is screwed to the outer wall of a group of tightening bolts (4), and three groups of mounting rods (7) are evenly connected to the rear side of the slider (6). The outer side of the front of each group of mounting rods (7) is respectively connected to a group of limiting plates (19). The rear side of each group of mounting rods (7) is respectively connected to the front side of a group of threaded rod heads (8). The outer side of the threaded rod heads (8) is detachably screwed to the inner side of the nut (9). The inner side of the sleeve (10) is evenly connected to the inner side of the pulley (13) in the circumferential direction. The outer ring side of the sleeve (10) is connected to the inner ring side of the pulley (13) through the spoke (12). The inner diameter of the sleeve groove (11) is consistent with the outer diameter of the mounting rod (7).

2. The pulley connection mechanism according to claim 1, characterized in that: It also includes a limiting ring (14), and the front and rear ends of the outer ring side of the pulley (13) are respectively connected to the inner ring side of a group of limiting rings (14).

3. The pulley connection mechanism according to claim 1, characterized in that: It also includes anti-loosening washers (15), and a group of anti-loosening washers (15) are movably provided on the inner side of the nut (9) outside each group of threaded rod heads (8).

4. The pulley connection mechanism according to claim 1, characterized in that: It also includes an oiling nozzle (16), which is provided at the middle of the top end of the slider (6), and the output end of the oiling nozzle (16) is connected to the contact point between the front side of the slider (6) and the slide rail (5).

5. The pulley connection mechanism according to claim 1, characterized in that: It also includes an oil filling cap (17), and the outer side of the oil filling nozzle (16) and the inner side of the oil filling cap (17) are detachably mounted.

6. The pulley connection mechanism according to claim 1, characterized in that: It also includes contact pads (18), and the middle parts of the left and right sides of the slider (6) are respectively connected to the inner sides of a group of contact pads (18).

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