Efficient and stable transmission mechanism

Abstract

The utility model relates to the technical field of mechanical transmission, in particular to an efficient and stable transmission mechanism which comprises a mechanism body, the mechanism body comprises a speed reducer, a supporting frame and a speed reducer bolt fastening assembly, and the speed reducer is installed on the supporting frame through the speed reducer bolt fastening assembly arranged in a matched mode. An output shaft of the speed reducer is sleeved with a driving chain wheel, and the driving chain wheel is fixed through a flat-end set screw which is arranged in a matched mode; a main shaft is arranged on the supporting frame and fixed through a bearing assembly and a bolt fastening assembly which are arranged in a matched mode. A large chain wheel is mounted at one end of the main shaft; a transmission chain is arranged on the driving chain wheel and the large chain wheel in a surrounding mode, a tensioning device is arranged between the driving chain wheel and the large chain wheel in a matched mode, and the tensioning degree of the transmission chain can be adjusted through the tensioning device. The tensioning device is reasonable in structure, accurate in tensioning device, effective in overload protection and scientific in shield design, the maintenance cost is reduced through the self-lubricating bearing, and efficient and stable transmission is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission, in particular to a highly efficient and stable transmission mechanism. Background Art

[0002] The transmission mechanism is a key component in mechanical systems for transmitting power and motion. With the development of industrial automation and precision manufacturing, higher requirements are placed on the efficiency, stability and reliability of the transmission mechanism. An efficient and stable transmission mechanism not only improves the overall performance of mechanical equipment, but also reduces energy consumption, improves production efficiency and product quality. In existing mechanical transmission systems, the stability and tension adjustment of the transmission chain have always been technical difficulties. Traditional transmission mechanisms often have problems such as complex structure, difficult maintenance and low transmission efficiency. Some transmission mechanisms also lack overload protection devices, which can easily damage key components under overload conditions. At the same time, the protection of internal components is not perfect. Utility Model Content

[0003] In order to solve some of the problems existing in the above-mentioned prior art, the utility model provides a highly efficient and stable transmission mechanism.

[0004] The transmission mechanism is constituted by a main shaft, and the main shaft is provided with a gear train, and the gear train is connected with the main shaft by the gear train.

[0005] When the utility model works, first, the reduction gear is fixedly installed on the support frame through the reduction gear bolt fastening assembly. The driving sprocket is sleeved and fixed on its output shaft. At the same time, the main shaft on the support frame is fixedly connected with it through the bearing assembly and the bolt fastening assembly. One end of the main shaft is installed and fixed with a large sprocket, and the other end is provided with a guide wheel. Then, a transmission chain is wound around the driving sprocket and the large sprocket to form a closed-loop structure, and the tension of the transmission chain is adjusted by the tensioning device. The tensioning device includes a tensioning sprocket and a positioning bush sleeved on the sleeve shaft, and is connected with the chain tensioning plate fixed on the support frame through the tensioning sprocket nut fastening assembly and can slide in the chute. Then, the tensioning bolt is connected with the steel plate and there is a locking block on it, and the chain tensioning plate and the steel plate are connected through an adjustable connecting piece. An overload safety pin is inserted through the sprocket sleeve shaft of the driving sprocket and is in sliding fit. A protective cover made of transparent or semi-transparent material is installed outside the mechanism body. After installation, by rotating the tensioning bolt, the tensioning sprocket is driven to slide, and the position of the chain tensioning plate is adjusted to adjust the tension of the transmission chain. Finally, after starting the reduction gear, the power is transmitted to the large sprocket through the driving sprocket and the transmission chain and drives the main shaft to rotate. During operation, the guide wheel guides the direction of the transmission chain, the bearing assembly reduces the friction force, and when overloaded, the overload safety pin automatically breaks to protect other components.

[0006] The beneficial effects of the utility model are as follows: It is an efficient and stable transmission mechanism. Through reasonable structural design and the setting of the tensioning device, precise adjustment of the tension of the transmission chain is achieved, improving the transmission efficiency and stability; the setting of the overload safety pin effectively protects other components of the transmission mechanism and extends the service life; the use of the protective cover can prevent dust, sundries, etc. from entering the interior of the transmission mechanism, affecting its normal operation, improving safety, and facilitating the observation of the operation state of the transmission mechanism; the use of self-lubricating bearings reduces the friction force during the rotation of the main shaft, reduces the maintenance workload, and improves the reliability and durability of the transmission mechanism.

[0007] As a further improvement of the utility model, in order to enable the tensioning sprocket to slide in the chute, thereby adjusting the tension of the transmission chain and improving the stability and efficiency of the transmission; the tensioning device includes a sleeve shaft, on which a tensioning sprocket and a positioning bush are sleeved; a chain tensioning plate is fixedly installed on the support frame, and a chute is provided on the chain tensioning plate; a tensioning sprocket nut fastening assembly is arranged on the sleeve shaft in a matching manner and is connected with the chain tensioning plate through the tensioning sprocket nut fastening assembly and can slide in the chute on the chain tensioning plate.

[0008] As a further improvement of the present utility model, in order to more precisely adjust the tension of the transmission chain and enhance the adaptability and adjustment flexibility of the mechanism; the tensioning device further includes a tensioning bolt, and a locking block is provided on the tensioning bolt; a steel plate is further provided on the support frame, and a slide rail is provided on the steel plate; the tensioning bolt is connected to the steel plate, and the tensioning sprocket is slid by rotating the tensioning bolt, so as to adjust the tension of the transmission chain.

[0009] As a further improvement of the present utility model, in order to protect other components from damage when the transmission mechanism is overloaded and improve the safety and reliability of the mechanism; a sprocket sleeve shaft is further provided on the driving sprocket, an overload safety pin is penetrated through the sprocket sleeve shaft and is in sliding fit with the sprocket sleeve shaft; the overload safety pin automatically breaks when the transmission mechanism is overloaded, so as to protect other components of the transmission mechanism from damage.

[0010] As a further improvement of the present utility model, in order to adjust the sliding range of the tensioning sprocket and improve the adaptability and flexibility of the mechanism; the chain tensioning plate and the steel plate are connected by an adjustable connecting member, so as to adjust the position of the chain tensioning plate according to actual needs, thereby adjusting the sliding range of the tensioning sprocket.

[0011] As a further improvement of the present utility model, in order to effectively prevent dust, sundries, etc. from entering the interior of the transmission mechanism, affect its normal operation, improve safety, and at the same time facilitate observing the operation state of the transmission mechanism; a protective cover is provided outside the mechanism body, and the protective cover is made of a transparent or semi-transparent material.

[0012] As a further improvement of the present utility model, in order to improve the stability and efficiency of transmission and avoid the dropping or loosening of the transmission chain; the transmission chain between the driving sprocket and the large sprocket forms a closed-loop structure.

[0013] As a further improvement of the present utility model, in order to reduce the friction and wear of the mechanism and extend the service life of the mechanism; the bearing assembly is a self-lubricating bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] For the convenience of those skilled in the art to understand, the present utility model will be further described below with reference to the attached drawings:

[0015] Figure 1 It is the front view of the present utility model.

[0016] Figure 2 It is the right side view of the present utility model.

[0017] Figure 3 It is of the present utility model Figure 1 The enlarged view at A in

[0018] Among them, 1 reducer, 2 driving sprocket, 3 flat end set screw, 4 overload safety pin, 5 sprocket sleeve shaft, 6 drive chain, 7 large sprocket, 8 large sprocket bolt fastening assembly, 9 support frame, 10 main shaft, 11 bearing assembly, 12 bolt fastening assembly, 13 guide wheel, 14 reducer bolt fastening assembly, 15 tensioning bolt, 16 guard, 17 locking block, 18 steel plate, 19 slide rail, 20 tensioning sprocket, 21 sleeve shaft, 22 tensioning sprocket nut fastening assembly, 23 positioning sleeve, 24 chain tensioning plate, 25 chute. Specific implementation manners

[0019] Such as Figures 1-3An efficient and stable transmission mechanism shown in the figure includes a mechanism body, and the mechanism body includes a reducer 1, a support frame 9, and a reducer bolt fastening component 14. The reducer 1 is fixedly installed on the support frame 9 through the reducer bolt fastening component 14; a driving sprocket 2 is sleeved on the output shaft of the reducer 1, a flat-end set screw 3 is arranged in cooperation with the driving sprocket 2, and it is fixed through the flat-end set screw 3; a main shaft 10 is further arranged on the support frame 9, a bearing assembly 11 and a bolt fastening component 12 are arranged in cooperation with the outer side of the main shaft 10, and it is fixedly connected with the support frame 9 through the bearing assembly 11 and the bolt fastening component 12; a large sprocket 7 is installed at one end of the main shaft 10, a large sprocket bolt fastening component 8 is arranged on the large sprocket 7, and it is fixed through the large sprocket bolt fastening component 8; a guide wheel 13 is arranged at the other end of the main shaft 10; a transmission chain 6 is further arranged around the driving sprocket 2 and the large sprocket ; a tensioning device is arranged in cooperation between the driving sprocket 2 and the large sprocket 7, and the tension of the transmission chain 6 can be adjusted through the tensioning device; the tensioning device includes a sleeve shaft 21, a tensioning sprocket 20 and a positioning sleeve 23 are sleeved on the sleeve shaft 21; a chain tensioning plate 24 is fixedly installed on the support frame 9, and a chute 25 is arranged on the chain tensioning plate 24; a tensioning sprocket nut fastening component 22 is arranged in cooperation with the sleeve shaft 21, and it is connected with the chain tensioning plate 24 through the tensioning sprocket nut fastening component 22 and can slide in the chute 25 on the chain tensioning plate 24; the tensioning device further includes a tensioning bolt 15, and a locking block 17 is arranged on the tensioning bolt 15; a steel plate 18 is further arranged on the support frame 9, and a slide rail 19 is arranged on the steel plate Also, the tensioning bolt 15 is connected with the steel plate 18, and the tensioning sprocket 20 is driven to slide by rotating the tensioning bolt 15, so as to realize the adjustment of the tension of the transmission chain 6; a sprocket sleeve shaft 5 is further arranged on the driving sprocket 2, an overload safety pin 4 is penetrated through the sprocket sleeve shaft 5, and it is in sliding fit with the sprocket sleeve shaft 5; the overload safety pin 4 automatically breaks when the transmission mechanism is overloaded, so as to protect other components of the transmission mechanism from being damaged; the chain tensioning plate 24 and the steel plate 18 are connected through an adjustable connecting member, so as to adjust the position of the chain tensioning plate 24 according to actual needs, and thus adjust the sliding range of the tensioning sprocket 20; a protective cover 16 is arranged outside the mechanism body, and the protective cover 16 is made of a transparent or semi-transparent material; the transmission chain 6 between the driving sprocket 2 and the large sprocket forms a closed-loop structure; the bearing assembly 11 is a self-lubricating bearing.

[0020] When the utility model works, firstly, the speed reducer 1 is fixedly installed on the support frame 9 through the speed reducer bolt fastening component 14, and the driving sprocket 2 is sleeved and fixed on its output shaft. At the same time, the main shaft 10 on the support frame 9 is fixedly connected thereto through the bearing component 11 and the bolt fastening component 12; one end of the main shaft 10 is installed and fixed with the large sprocket 7, and the guide wheel 13 is arranged at the other end; then, the driving chain 6 is wound around the driving sprocket 2 and the large sprocket 7 to form a closed-loop structure, and the tension of the driving chain 6 is adjusted through the tensioning device. The tensioning device includes that after the tensioning sprocket 20 and the positioning bush 23 are sleeved on the sleeve shaft 21, it is connected with the chain tensioning plate 24 fixed on the support frame 9 through the tensioning sprocket nut fastening component 22 and can slide in the chute 25; then the tensioning bolt 15 is connected with the steel plate 18 and there is a locking block 17 thereon, and the chain tensioning plate 24 and the steel plate 18 are connected through an adjustable connecting piece; the overload safety pin 4 is penetrated through the sprocket sleeve shaft 5 of the driving sprocket 2 and is in sliding fit therewith, and a protective cover 16 made of transparent or semi-transparent material is installed outside the mechanism body. After the installation is completed, by rotating the tensioning bolt 15, the tensioning sprocket 20 is driven to slide, and the position of the chain tensioning plate 4 is adjusted to adjust the tension of the driving chain 6; finally, after the speed reducer 1 is started, the power is transmitted to the large sprocket 7 through the driving sprocket 2 and the driving chain 6 and drives the main shaft 10 to rotate. During the operation, the guide wheel 13 guides the direction of the driving chain 6, the bearing component 11 reduces the friction force, and when overloaded, the overload safety pin 4 automatically breaks to protect other components.

[0021] The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited to the above embodiments. All technical solutions falling within the idea of the utility model belong to the protection scope of the utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, several improvements and refinements should also be regarded as the protection scope of the utility model.

Claims

1. An efficient and stable transmission mechanism, comprising a mechanism body, characterized in that: The mechanism body comprises a reducer (1), a support frame (9) and a reducer bolt fastening assembly (14), wherein the reducer (1) is fixedly mounted on the support frame (9) via the reducer bolt fastening assembly (14); a driving sprocket (2) is sleeved on the output shaft of the reducer (1), and a flat-end set screw (3) is provided on the driving sprocket (2) and fixed via the flat-end set screw (3); a main shaft (10) is further provided on the support frame (9), and a bearing assembly (11) is provided on the outer side of the main shaft (10) ) and a bolt fastening assembly (12), and is fixedly connected to the support frame (9) through a bearing assembly (11) and a bolt fastening assembly (12); a large sprocket (7) is installed on one end of the main shaft (10), and a large sprocket bolt fastening assembly (8) is provided on the large sprocket (7), and is fixed through the large sprocket bolt fastening assembly (8); a guide wheel (13) is provided on the other end of the main shaft (10); a transmission chain (6) is also provided around the driving sprocket (2) and the large sprocket (7), and the driving sprocket (2) and the large sprocket (7) are fixed. A tensioning device is provided between the sprockets (7), and the tension of the transmission chain (6) can be adjusted by the tensioning device; the tensioning device includes a sleeve shaft (21), on which a tensioning sprocket (20) and a positioning sleeve (23) are sleeved; a chain tensioning plate (24) is fixedly mounted on the support frame (9), and a slide groove (25) is provided on the chain tensioning plate (24); a tensioning sprocket nut fastening assembly (22) is provided on the sleeve shaft (21), and the tensioning sprocket nut fastening assembly (22) is connected to the chain tensioning The tensioning plate (24) is connected to the tensioning plate (24) and can slide in the slide groove (25) on the chain tensioning plate (24); the tensioning device also includes a tensioning bolt (15), and the tensioning bolt (15) is provided with a locking block (17); the support frame (9) is also provided with a steel plate (18), and the steel plate (18) is provided with a slide rail (19); the tensioning bolt (15) is connected to the steel plate (18), and the tensioning sprocket (20) is driven to slide by rotating the tensioning bolt (15), thereby adjusting the tension of the transmission chain (6).

2. The efficient and stable transmission mechanism according to claim 1, characterized in that: The driving sprocket (2) is further provided with a sprocket sleeve shaft (5), and an overload safety pin (4) is passed through the sprocket sleeve shaft (5) and is in sliding engagement with the sprocket sleeve shaft (5); the overload safety pin (4) automatically breaks when the transmission mechanism is overloaded, thereby protecting other components of the transmission mechanism from damage.

3. The efficient and stable transmission mechanism according to claim 1, characterized in that: The chain tensioning plate (24) and the steel plate (18) are connected via an adjustable connecting piece so that the position of the chain tensioning plate (24) can be adjusted according to actual needs, thereby adjusting the sliding range of the tensioning sprocket (20).

4. The efficient and stable transmission mechanism according to claim 1, characterized in that: A protective cover (16) is provided on the outside of the mechanism body, and the protective cover (16) is made of a transparent or translucent material.

5. The efficient and stable transmission mechanism according to claim 1, characterized in that: The transmission chain (6) between the driving sprocket (2) and the large sprocket (7) forms a closed loop structure.

6. The efficient and stable transmission mechanism according to claim 1, characterized in that: The bearing assembly (11) is a self-lubricating bearing.

Images