CN217519153U - Belt pulley - Google Patents

Abstract

The application discloses belt pulley belongs to belt pulley technical field, including two sets of belt pulleys, every group the equal fixedly connected with push pedal of inner wall of belt pulley, the equal fixedly connected with slip post of inner wall of every push pedal, the gear wheel has been placed jointly to the inside of two sets of belt pulleys, and two sets of sliding holes have been seted up to the left surface of gear wheel, the inner wall of every group sliding hole all with the surface sliding connection of slip post, the surface toothing of gear wheel has the pinion, the inner wall fixedly connected with transmission shaft of pinion. This belt pulley, through being provided with micro motor, can play the effect of providing power for the automatically regulated tensioning, realize the purpose of automatic work, in order to avoid the problem that can't carry out manual regulation in belt pulley work, through the transmission shaft, pinion and gear wheel cooperate, make and carry out gear drive between each part, and then make draw hole and slip post on the gear wheel, can remove the cooperation, make the slip post remove in the draw hole, and then can drive the push pedal and expand to the outside.

Description

Belt pulley

Technical Field

The application belongs to the technical field of the belt pulley, especially, relate to a belt pulley.

Background

The belt pulley belongs to a hub part, generally has a relatively large size, is generally mainly cast and forged in a manufacturing process, is generally designed to be cast in a large size, is generally made of cast iron, rarely made of cast steel, can be generally designed to be forged in a small size, is made of steel, and is mainly used for occasions of long-distance power transmission, such as power output of small diesel engines, power transmission of agricultural vehicles and agricultural machinery, speed reducers and the like.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: when the existing belt pulley is used, due to long-time work and abrasion, the tensioning between the belt pulley and a belt cannot be automatically adjusted, so that the belt is loosened in the belt pulley row, and the transmission efficiency of the belt is influenced.

Therefore, a belt pulley is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The application aims at solving the problem that in the prior art, a belt pulley cannot automatically adjust the tension between the belt pulley and a belt, and provides the belt pulley.

In order to achieve the purpose, the following technical scheme is adopted in the application:

the utility model provides a belt pulley, includes two sets of belt pulleys, every group the equal fixedly connected with push pedal of inner wall of belt pulley, every the equal fixedly connected with slip post of inner wall of push pedal is two sets of the gear wheel has been placed jointly to the inside of belt pulley, two sets of slide openings, every group have been seted up to the left surface of gear wheel the inner wall of slide opening all with the surface sliding connection of slip post, the surface meshing of gear wheel has the pinion, the inner wall fixedly connected with transmission shaft of pinion, the left end fixedly connected with micro motor of transmission shaft.

Through setting up micro motor, the transmission shaft, pinion and gear wheel, can utilize micro motor to drive the transmission shaft, thereby it is rotatory to drive the pinion, and then the pinion toothing gear wheel rotates, recycle the slide opening, the slip post, push pedal and belt pulley cooperation, when the slide opening moves along with the gear wheel rotation, the slip post can produce along with the slide opening and remove, thereby drive the push pedal action, and then realize the purpose of increasing and decreasing to the belt pulley diameter, make the difference that utilizes the belt pulley diameter reach the effect of tight regulation that rises.

Preferably, an inner wheel body is jointly placed inside the two groups of belt pulleys, and the inner wall of the inner wheel body is movably connected with the outer surface of the transmission shaft.

Through setting up the internal wheel body, provide the packing for the belt pulley for tensioning adjustment part can also install.

Preferably, the left side surface of the inner wheel body is fixedly connected with the right side surface of the micro motor, and the inner walls of the two sets of belt pulleys are jointly clamped with two sealing end covers.

Through setting up the end cover, realized sealing up the internal wheel body to get into debris and cause the influence to gear wheel and pinion in the internal wheel body.

Preferably, one side face, close to each other, of each of the two sealing end covers is fixedly connected with two side faces of the inner wheel body respectively, the inner wall of one of the sealing end covers is in contact with the outer surface of the micro motor, the outer surface of each sliding column is in threaded connection with a fixing cover, and the right side face of each fixing cover is in contact with the left side face of the push plate.

Through setting up fixed lid, realized carrying out the purpose fixed to the post that slides to the unstable condition of being connected of post and push pedal of sliding is avoided.

Preferably, the left side surface of the inner wheel body is provided with a shaft hole, and the inner wall of the shaft hole is fixedly connected with a wheel shaft.

Through setting up shaft hole and shaft, realized utilizing the shaft can drive the purpose of interior wheel body, the shaft is used for connecting peripheral hardware power component.

Preferably, the inner wall of each sealing end cover is movably connected with the outer surface of the wheel shaft, and two groups of movable openings are formed in the outer surface of the inner wheel body.

Through setting up the movable opening, can make the push pedal remove in it to in the sealed condition that can not make the push pedal activity of wheel body overall structure.

Preferably, every group the inner wall of activity mouth all contacts with the surface of push pedal, the gear chamber has been seted up to the inside of interior wheel body.

Through setting up the gear chamber, provide working space for parts such as gear wheel and pinion to parts such as gear wheel and pinion are external problem is avoided.

Preferably, the inside of the gear cavity is fixedly communicated with the inside of the movable opening, the inner wall of the large gear is fixedly connected with a bearing, and the inner ring of the bearing is fixedly connected with the outer surface of the wheel shaft.

Through setting up the bearing, realized the purpose of protection gear wheel, reduce the wearing and tearing of gear wheel for the gear wheel can not rotate along with the shaft.

To sum up, the technical effect and the advantage of this application: this belt pulley, through being provided with micro motor, can play and tightly provide the effect of power for automatically regulated rises, realize the purpose of automatic work, in order to avoid the problem that can't carry out manual regulation in belt pulley work, through the transmission shaft, pinion and gear wheel cooperate, make gear drive between each part, and then make the draw runner and the slip post on the gear wheel, can remove the cooperation, make the slip post remove in the draw runner, and then can drive the outside extension of push pedal, the connection of rethread push pedal and belt pulley, because cooperation between slip post and the draw runner is all synchronous, the diameter that can make the outside extension of belt pulley form is the same, thereby reach the purpose of automatically regulated belt pulley tensioning, in order to avoid there being the lax problem of cooperation between belt pulley and the belt, be favorable to keeping the transmission efficiency of belt pulley and belt.

Drawings

FIG. 1 is a schematic three-dimensional structural view of a seal end cap according to the present application;

FIG. 2 is a perspective view of the shaft hole of the present application;

FIG. 3 is a schematic three-dimensional structure of a push plate according to the present application;

FIG. 4 is a perspective structural view of a bull gear according to the present application;

FIG. 5 is a cross-sectional side view of a perspective view of an inner wheel body according to the present application.

In the figure: 1. a belt pulley; 2. sealing the end cap; 3. an axle; 4. an inner wheel body; 5. pushing the plate; 6. a bull gear; 7. a pinion gear; 8. a fixed cover; 9. a bearing; 10. a sliding post; 11. a slide hole; 12. a micro motor; 13. a drive shaft; 14. a gear cavity; 15. a movable opening; 16. a shaft hole.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

Referring to fig. 1-4, a belt pulley comprises two sets of belt pulleys 1, wherein the inner wall of each set of belt pulley 1 is fixedly connected with a push plate 5, the inner wall of each push plate 5 is fixedly connected with a sliding column 10, a large gear 6 is placed inside each set of belt pulleys 1, and two sets of sliding holes 11 are formed in the left side surface of each large gear 6.

Referring to fig. 2-4, the inner wall of each group of sliding holes 11 is slidably connected with the outer surface of the sliding column 10, the outer surface of the large gear 6 is engaged with the small gear 7, the inner wall of the small gear 7 is fixedly connected with a transmission shaft 13, the left end of the transmission shaft 13 is fixedly connected with a micro motor 12, and the micro motor 12 can drive the small gear 7 to move, so that the belt pulley 1 can be independently adjusted.

Referring to fig. 2-4, an inner wheel body 4 is disposed inside the two sets of belt pulleys 1, the belt pulleys 1 can be driven to rotate by the inner wheel body 4, a tension adjusting component can be installed in the belt pulleys 1, the inner wall of the inner wheel body 4 is movably connected with the outer surface of the transmission shaft 13, and the left side surface of the inner wheel body 4 is fixedly connected with the right side surface of the micro motor 12.

Referring to fig. 1-3, two sealing end covers 2 are clamped on the inner walls of two groups of belt pulleys 1 together, the inner pulley body 4 is sealed by the sealing end covers 2 so as to prevent dust and other impurities from entering the inner pulley body 4 and affecting a big gear 6 or a small gear 7, one side surfaces of the two sealing end covers 2, which are close to each other, are fixedly connected with two side surfaces of the inner pulley body 4 respectively, and the sealing end covers 2 are fixed by the connection of the inner pulley body 4 and the sealing end covers 2.

Referring to fig. 1-3, the inner wall of one of the end cover 2 contacts with the outer surface of the micro motor 12, the outer surface of each sliding column 10 is connected with a fixing cover 8 through threads, the fixing cover 8 is utilized to fix the sliding column 10, so that the sliding column 10 cannot shake after being used for a long time, the right side surface of each fixing cover 8 contacts with the left side surface of the push plate 5, the left side surface of the inner wheel 4 is provided with a shaft hole 16, the inner wall of the shaft hole 16 is fixedly connected with a wheel shaft 3, the wheel shaft 3 can be utilized to drive the inner wheel 4 to rotate through the matching of the shaft hole 16 and the wheel shaft 3, and the shaft hole 16 enables the wheel shaft 3 to be detached.

Referring to fig. 1 and 5, the inner wall of every end cover 2 all with the surface swing joint of shaft 3, two sets of movable port 15 have been seted up to the surface of interior wheel body 4, through movable port 15, make push pedal 5 can remove, push pedal 5 is inside interior wheel body 4 through movable port 15 entering, the inner wall of every movable port 15 of group all contacts with the surface of push pedal 5, gear chamber 14 has been seted up to the inside of interior wheel body 4, through gear chamber 14, provide the space for gear wheel 6 and pinion 7 cooperation, make gear wheel 6 and pinion 7 internal motion including the wheel body 4.

Referring to fig. 3-5, the inside of the gear cavity 14 is fixedly communicated with the inside of the movable opening 15, the push plate 5 can enter the gear cavity 14 through the communication between the gear cavity 14 and the movable opening 15 to act in cooperation with the large gear 6 and the like, the bearing 9 is fixedly connected to the inner wall of the large gear 6, the wheel shaft 3 can penetrate through the large gear 6 to rotate through the bearing 9, and the large gear 6 cannot rotate along with the wheel shaft 3 due to the bearing 9, and the inner ring of the bearing 9 is fixedly connected with the outer surface of the wheel shaft 3.

The working principle is as follows: firstly, electrifying the micro motor 12, when the belt pulley 1 needs to be used, installing a belt on the belt pulley 1 for matching, connecting the belt pulley to an external part by using the wheel shaft 3, wherein the wheel shaft 3 can drive the inner wheel body 4 to act, because the push plate 5 is arranged in the inner wheel body 4 and the push plate 5 is connected with the belt pulley 1, the inner wheel body 4 can drive the belt pulley 1, after the belt pulley 1 is used for a long time, a gap is generated between the belt and the belt pulley 1 due to the abrasion of the belt pulley 1 and the belt, the diameter of the belt pulley 1 needs to be locked or enlarged, so that the belt pulley 1 and the belt are tightly matched, at the moment, starting the micro motor 12, transmitting power by the transmission shaft 13, so that the pinion 7 rotates, because the pinion 7 is meshed with the bull gear 6, and then the bull gear 6 rotates along with the pinion 7, and in the rotation process of the bull gear 6, sliding column 10 can remove in slide opening 11 to make push pedal 5 produce and remove, push pedal 5 removes at activity mouth 15, expands belt pulley 1, makes belt pulley 1 diameter increase, and then more closely with the cooperation of belt, makes the cooperation of belt pulley 1 and belt no longer lax, thereby realizes that belt pulley 1's automation rises and tightly.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present application, and all equivalent substitutions and changes according to the technical solutions and the inventive concepts of the present application should be covered by the scope of the present application.

Claims (8)

1. The utility model provides a belt pulley, includes two sets of belt pulleys (1), its characterized in that, every group the equal fixedly connected with push pedal (5) of inner wall of belt pulley (1), every the equal fixedly connected with slip post (10) of inner wall of push pedal (5), two sets of gear wheel (6) have been placed jointly to the inside of belt pulley (1), two sets of slide opening (11), every group have been seted up to the left surface of gear wheel (6) the inner wall of slide opening (11) all with the surface sliding connection of slip post (10), the surface toothing of gear wheel (6) has pinion (7), the inner wall fixedly connected with transmission shaft (13) of pinion (7), the left end fixedly connected with micro motor (12) of transmission shaft (13).

2. A pulley according to claim 1, characterized in that the inner pulley body (4) is placed in both pulley sets (1) and the inner wall of the inner pulley body (4) is movably connected with the outer surface of the transmission shaft (13).

3. The belt pulley according to claim 2, wherein the left side surface of the inner pulley body (4) is fixedly connected with the right side surface of the micro motor (12), and the inner walls of the two groups of belt pulleys (1) are jointly clamped with two sealing end covers (2).

4. A belt pulley according to claim 3, wherein one side surface of the two end caps (2) close to each other is fixedly connected with two side surfaces of the inner pulley body (4), the inner wall of one end cap (2) is in contact with the outer surface of the micro motor (12), the outer surface of each sliding column (10) is in threaded connection with a fixed cover (8), and the right side surface of each fixed cover (8) is in contact with the left side surface of the push plate (5).

5. The belt pulley according to claim 2, wherein a shaft hole (16) is formed in the left side surface of the inner pulley body (4), and the inner wall of the shaft hole (16) is fixedly connected with the wheel shaft (3).

6. A pulley according to claim 3, characterized in that the inner wall of each end cap (2) is movably connected to the outer surface of the axle (3), and two sets of moving openings (15) are formed in the outer surface of the inner pulley body (4).

7. The pulley according to claim 6, wherein the inner wall of each movable opening (15) is in contact with the outer surface of the push plate (5), and the inner pulley body (4) is internally provided with a gear cavity (14).

8. A pulley according to claim 7, characterized in that the inside of said gear chamber (14) is in fixed communication with the inside of said movable orifice (15), the inner wall of said gearwheel (6) is fixedly connected with a bearing (9), and the inner ring of said bearing (9) is fixedly connected with the outer surface of the wheel axle (3).

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