Fastening device of one-way belt pulley

Abstract

The fastening device comprises a mounting plate, a driving belt pulley and a driven belt pulley are rotationally arranged on the surface of the front side of the mounting plate through two driving shafts respectively, a driving motor is arranged on the surface of the rear side of the mounting plate, and the driving belt pulley and the driven belt pulley are in transmission connection through a belt. A through groove is formed in the front side surface of the mounting plate in a penetrating mode, a shell is arranged on the rear side surface of the mounting plate, a threaded rod and a sliding rod are arranged on the left side and the right side in the shell correspondingly, the threaded rod is sleeved with a first lifting block in a threaded mode, the sliding rod is sleeved with a second lifting block in a sliding mode, and an electric push rod is arranged between the first lifting block and the second lifting block. The extending end of the electric push rod forwards penetrates through the through groove and is rotationally connected with a fastening wheel through a rotating shaft, an adjusting motor is arranged at the top of the shell, and an output shaft of the adjusting motor is connected with the top end of the threaded rod. According to the device, the two fastening wheels are far away from each other or close to each other to apply pressure to the belt, so that the loosened belt becomes tight and is more stable, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of pulleys, in particular to a fastening device for a one-way pulley. Background Art

[0002] Pulleys are disc-hub parts. They are generally relatively large in size and are manufactured using casting and forging. Generally, larger ones are designed using casting methods, and the materials are generally cast iron, and cast steel is rarely used; smaller ones can be designed for forging, and the materials are steel. Pulleys are mainly used in situations where power is transmitted over long distances, such as the output of small diesel engines, agricultural vehicles, tractors, automobiles, mining machinery, mechanical processing equipment, textile machinery, packaging machinery, lathes, forging machines, some small-horsepower motorcycle power transmission, agricultural machinery power transmission, air compressors, reducers, reducers, generators, cotton gins, etc.

[0003] Because the belt is elastic, it can mitigate impact, reduce vibration, and ensure smooth transmission, but it cannot maintain a strict transmission ratio; when the transmission parts encounter obstacles or are overloaded, the belt will slip on the pulley, thus preventing damage to the machine parts; belt transmission is simple and easy, low cost, simple to maintain, and easy to replace; but because the belt slips on the pulley, the mechanical efficiency of the belt transmission is low, and the durability of the belt itself is also poor. It will gradually stretch after long-term use, so it should be adjusted at any time; for this reason, we design a fastening device for a one-way pulley to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a fastening device for a one-way pulley to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The driving wheel that is to be swung by the gear train of the present invention is connected with the drive shaft through the driving shaft to drive the driving wheel and the driven wheel to be driven by the gear train of the present invention.

[0007] As a preferred solution of the utility model: the front surface of the mounting plate is provided with two receiving grooves, and the two receiving grooves are symmetrically distributed at the upper and lower ends of the through groove.

[0008] As a further preferred solution of the utility model: the outside of the threaded rod is symmetrically provided with two groups of external threads on both sides of the midpoint along its length direction, and the thread directions of the two groups of external threads are opposite.

[0009] As a further preferred solution of the present invention: the structural size of the storage groove is larger than the structural size of the fastening wheel.

[0010] As a further preferred solution of the utility model: the driving pulley and the driven pulley are located at the same horizontal height.

[0011] As a further preferred solution of the utility model: the upper and lower ends of the threaded rod are rotatably connected to the upper and lower inner walls of the shell respectively, and the upper and lower ends of the sliding rod are fixedly connected to the upper and lower inner walls of the shell respectively.

[0012] As a further preferred solution of the present invention: the first lifting block and the second lifting block are located at the same horizontal height.

[0013] As a further preferred solution of the utility model: the fastening wheels are provided with grooves identical to those on the driving pulley and the driven pulley, and the grooves on the two fastening wheels are respectively used for the upper and lower sections of the belt to be embedded.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. When the device is used, the driving motor is started, and the output shaft of the driving motor drives the active pulley to rotate through the driving shaft, and cooperates with the driven pulley to drive the belt to run. When the belt is loose and slips and needs to be tightened, the adjusting motor is started, and the output shaft of the adjusting motor drives the threaded rod to rotate, thereby driving the two first lifting blocks to move away from or closer to each other, thereby driving the two electric push rods to move away from or closer to each other, thereby driving the two fastening wheels to move away from or closer to each other, that is, when the two fastening wheels approach each other from the outside of the upper and lower sections of the belt respectively, the fastening wheels can apply pressure to the belt through the groove, thereby making the loose belt tighter and more stable, and making it easier to make the belt evenly stressed; when the belt is loose to a large extent, the two fastening wheels cannot apply force from the outside of the belt. At this time, the two fastening wheels can act from the inside of the belt, that is, when the two fastening wheels are controlled to move away from each other, the two fastening wheels respectively prop up the upper and lower sections of the belt to the outside, similarly, the belt can be made tighter and more stable, and it is easier to make the belt evenly stressed, with high flexibility and high practicality, and it is worth promoting.

[0016] 2. When the device is not needed temporarily, the two fastening wheels can be controlled to move away from each other to the maximum distance, that is, the two fastening wheels are moved to the front of the corresponding storage grooves respectively, and then the electric push rod is retracted and drives the fastening wheels to move to the inside of the corresponding storage grooves, so that the fastening wheels are stored to prevent dust from falling and reduce the size of the device structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram showing the structure inside the housing from another viewing angle of the utility model;

[0019] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0020] Among them: 1-mounting plate, 2-driving pulley, 3-through slot, 4-fastening wheel, 5-driven pulley, 6-belt, 7-storage slot, 8-adjusting motor, 9-housing, 10-electric push rod, 11-driving motor, 12-triangular bottom plate, 13-rotating shaft, 14-sliding rod, 15-second lifting block, 16-first lifting block, 17-threaded rod. DETAILED DESCRIPTION

[0021] 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.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-3 In the embodiment of the utility model, a fastening device for a one-way pulley comprises a mounting plate 1, a driving pulley 2 and a driven pulley 5 are rotatably arranged on the front surface of the mounting plate 1 through two driving shafts, a driving motor 11 is fixedly arranged on the rear surface of the mounting plate 1 through a triangular bottom plate 12, the output shaft of the driving motor 11 provides power to the driving pulley 2 through the driving shaft, the driving pulley 2 and the driven pulley 5 are located at the same horizontal height, the driving pulley 2 and the driven pulley 5 are connected by a belt 6 for transmission, a through groove 3 is penetrated through the front surface of the mounting plate 1 along the vertical center line direction, a shell 9 is arranged on the rear surface of the mounting plate 1, the through groove 3 is communicated with the inside of the shell 9, a threaded rod 17 and a sliding rod 14 are respectively arranged on the left and right sides of the inside of the shell 9, the upper and lower ends of the threaded rod 17 are respectively rotatably connected to the upper and lower inner walls of the shell 9, and the upper and lower ends of the sliding rod 14 are respectively connected to the upper and lower inner walls of the shell 9 The side inner wall is fixedly connected, the external threaded sleeve of the threaded rod 17 is provided with a first lifting block 16, and the external sliding sleeve of the sliding rod 14 is provided with a second lifting block 15. The first lifting block 16 and the second lifting block 15 are located at the same horizontal height. An electric push rod 10 is fixedly connected between the first lifting block 16 and the second lifting block 15. There are two electric push rods 10, and they are symmetrically distributed on the upper and lower sides of the midpoint of the length direction of the through groove 3. The extended end of the electric push rod 10 passes through the through groove 3 forward and is rotatably connected to the fastening wheel 4 through the rotating shaft 13. The fastening wheel 4 is provided with the same grooves as those on the driving pulley 2 and the driven pulley 5. The grooves on the two fastening wheels 4 are respectively embedded in the upper and lower sections of the belt 6, which makes the fastening wheel 4 more stable in the process of applying pressure to the belt 6, and it is easier to make the belt 6 evenly stressed. An adjusting motor 8 is provided on the top of the outer shell 9, and the output shaft of the adjusting motor 8 is connected to the top of the threaded rod 17.

[0024] Two receiving grooves 7 are provided on the front surface of the mounting plate 1, and the two receiving grooves 7 are symmetrically distributed at the upper and lower ends of the through groove 3. The structural dimensions of the receiving grooves 7 are larger than the structural dimensions of the fastening wheel 4. The outside of the threaded rod 17 is symmetrically provided with two groups of external threads on both sides of the midpoint along its length direction, and the thread directions of the two groups of external threads are opposite.

[0025] Specifically, when in use, the driving motor 11 is started, and the output shaft of the driving motor 11 drives the active pulley 2 to rotate through the driving shaft, and cooperates with the driven pulley 5 to drive the belt 6 to run. When the belt 6 becomes loose and slips and needs to be tightened, the adjusting motor 8 is started, and the output shaft of the adjusting motor 8 drives the threaded rod 17 to rotate, which can drive the two first lifting blocks 16 to move away from or closer to each other, and then drive the two electric push rods 10 to move away from or closer to each other, and then drive the two fastening wheels 4 to move away from or closer to each other, that is, when the two fastening wheels 4 approach each other from the outside of the upper and lower sections of the belt 6 respectively, the fastening wheels 4 can apply pressure to the belt 6 through the grooves, such as Figure 1 As shown, the loose belt 6 becomes tighter and more stable, and it is easier to make the belt 6 evenly stressed; when the belt 6 is loose to a large extent, the two fastening wheels 4 cannot apply force from the outside of the belt 6. At this time, the two fastening wheels 4 can act from the inside of the belt 6, that is, when the two fastening wheels 4 are controlled to move away from each other, the two fastening wheels 4 respectively prop up the upper and lower sections of the belt 6 to the outside. Similarly, the belt 6 can be made tighter and more stable, and it is easier to make the belt 6 evenly stressed. It has high flexibility and practicality in use and is worthy of promotion.

[0026] In addition, when the device is not needed temporarily, the two fastening wheels 4 can be controlled to move away from each other to the maximum distance, that is, at this time, the two fastening wheels 4 are respectively moved to the front of the corresponding storage groove 7, and then the electric push rod 10 is retracted and drives the fastening wheels 4 to move to the inside of the corresponding storage groove 7, so that the fastening wheels 4 are stored to prevent dust from falling and reduce the size of the device structure.

[0027] It should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A fastening device for a one-way pulley, comprising a mounting plate (1), wherein a driving pulley (2) and a driven pulley (5) are rotatably arranged on the front surface of the mounting plate (1) through two driving shafts, and a driving motor (11) is fixedly arranged on the rear surface of the mounting plate (1) through a triangular bottom plate (12), and the output shaft of the driving motor (11) provides power to the driving pulley (2) through the driving shaft; characterized in that: The driving pulley (2) and the driven pulley (5) are connected by a belt (6). A through groove (3) is formed on the front surface of the mounting plate (1) along the vertical center line direction. A shell (9) is formed on the rear surface of the mounting plate (1). The through groove (3) is connected to the inside of the shell (9). A threaded rod (17) and a sliding rod (14) are respectively formed on the left and right sides of the inside of the shell (9). The threaded rod (17) is threadedly sleeved with a first lifting block (16) on the outside. The sliding rod (14) is slidable on the outside. A second lifting block (15) is sleeved thereon, an electric push rod (10) is fixedly connected between the first lifting block (16) and the second lifting block (15), two electric push rods (10) are provided, and are symmetrically distributed on the upper and lower sides of the midpoint of the length direction of the through slot (3), the extended end of the electric push rod (10) passes through the through slot (3) forward and is rotatably connected to a fastening wheel (4) through a rotating shaft (13), an adjusting motor (8) is provided at the top of the housing (9), and the output shaft of the adjusting motor (8) is connected to the top of the threaded rod (17).

2. A one-way pulley fastening device according to claim 1, characterized in that: The front surface of the mounting plate (1) is provided with two receiving grooves (7), and the two receiving grooves (7) are symmetrically distributed at the upper and lower ends of the through groove (3).

3. A one-way pulley fastening device according to claim 2, characterized in that: The outside of the threaded rod (17) is symmetrically provided with two groups of external threads on both sides of the midpoint in the length direction thereof, and the thread directions of the two groups of external threads are opposite.

4. A fastening device for a one-way pulley according to claim 3, characterized in that: The structural dimensions of the storage groove (7) are greater than the structural dimensions of the fastening wheel (4).

5. A one-way pulley fastening device according to claim 4, characterized in that: The driving pulley (2) and the driven pulley (5) are located at the same horizontal height.

6. A one-way pulley fastening device according to claim 5, characterized in that: The upper and lower ends of the threaded rod (17) are rotatably connected to the upper and lower inner walls of the outer shell (9), and the upper and lower ends of the sliding rod (14) are fixedly connected to the upper and lower inner walls of the outer shell (9).

7. The fastening device of a one-way pulley according to claim 1, characterized in that: The first lifting block (16) and the second lifting block (15) are located at the same horizontal height.

8. A one-way pulley fastening device according to claim 7, characterized in that: The fastening wheels (4) are provided with grooves identical to those on the driving pulley (2) and the driven pulley (5), and the grooves on the two fastening wheels (4) are respectively used for the upper and lower sections of the belt (6) to be embedded.

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