Synchronous pulley capable of being adjusted according to bandwidth

Abstract

The utility model discloses a synchronous pulley capable of being adjusted according to bandwidth, which relates to the technical field of synchronous pulleys and comprises a mounting barrel and an adjusting component. A first synchronous belt wheel is fixed to the rear end of the circumferential surface of the mounting barrel, a fixing assembly and an extrusion assembly are mounted in the mounting barrel, and the fixing assembly is matched with the extrusion assembly; the adjusting assembly comprises a second synchronous belt wheel, sliding blocks and a connecting ring, the front end of the circumferential face of the mounting barrel is slidably connected with the second synchronous belt wheel, four corresponding strip-shaped openings are formed in the circumferential face of the mounting barrel, the sliding blocks are slidably connected into the strip-shaped openings, the four sliding blocks are all fixed into the second synchronous belt wheel, and the connecting ring is connected with the sliding blocks. And connecting rings are fixed to the sides, away from the second synchronous belt wheel, of the four sliding blocks, each fixing assembly comprises a clamping hole, a connecting barrel, a fixing ring, a connecting rod, a clamping head, an extrusion disc and a spring, adjustment can be conducted according to the width of the synchronous belt, and replacement is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of synchronous pulleys, in particular to a synchronous pulley which can be adjusted according to the width of the belt. Background Art

[0002] Synchronous pulleys are generally made of steel, aluminum alloy, cast iron, brass and other materials. The inner holes are round holes, D-shaped holes, tapered holes and other forms. Synchronous pulley transmission is composed of a closed ring belt with equally spaced teeth on the inner surface and a corresponding pulley. When moving, the belt teeth mesh with the tooth grooves of the pulley to transmit motion and power. It is a meshing transmission because it has various characteristics of gear transmission, chain transmission and flat belt transmission, and its transmission is accurate, stable, efficient and easy to maintain. It can be widely used in automobiles, textiles, office equipment and other fields;

[0003] The specifications of synchronous pulleys in the prior art are usually fixed, so different synchronous pulleys are required for synchronous belts with different bandwidths, and replacement is cumbersome and affects efficiency. Therefore, we propose a synchronous pulley that can be adjusted according to the bandwidth. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a synchronous belt wheel which can be adjusted according to the width of the synchronous belt without the need for replacement, thereby effectively solving the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a synchronous pulley adjustable according to the bandwidth, comprising a mounting barrel and an adjustment assembly;

[0006] Installation barrel: a first synchronous pulley is fixed at the rear end of the circumferential surface, a fixing assembly and an extrusion assembly are installed inside the installation barrel, and the fixing assembly and the extrusion assembly cooperate with each other;

[0007] Adjustment assembly: includes a second synchronous pulley, a slider and a connecting ring. The front end of the circumferential surface of the mounting barrel is slidably connected to the second synchronous pulley. Four corresponding strip openings are opened on the circumferential surface of the mounting barrel. The inside of the strip openings is slidably connected to the slider. The four sliders are all fixed inside the second synchronous pulley. A connecting ring is fixed on the side of the four sliders away from the second synchronous pulley. The second synchronous pulley is arranged to cooperate with the first synchronous pulley to complete the support of the synchronous belt.

[0008] Furthermore, the fixing assembly includes a clamping hole, a connecting barrel, a fixing ring, a connecting rod, a clamping head, an extrusion disk and a spring, the connecting ring is provided with four corresponding clamping holes on its circumferential surface, the connecting barrel is fixed with a connecting barrel inside, the connecting barrel is provided with evenly distributed mounting holes on its circumferential surface, the mounting hole is fixed with a fixing ring inside, the fixing ring is slidably connected with a connecting rod inside, a clamping head is fixed with one end of the connecting rod, an extrusion disk is fixed with the other end of the connecting rod, a spring is sleeved on the circumferential surface of the connecting rod, one end of the spring is fixed to the end face of the fixing ring, the other end of the spring is fixed to the end face of the extrusion disk, four clamping heads corresponding to the four clamping holes pass through four fixing rings connected thereto and are clamped in the four clamping holes, and the connecting ring is fixed by setting a fixing assembly.

[0009] Furthermore, the extrusion assembly includes a rotating shaft and an extrusion bar. A rotating hole is opened in the middle of the connecting barrel. The inside of the rotating hole is rotatably connected to the rotating shaft. Four corresponding extrusion bars are fixed on the circumferential surface of the rotating shaft. All the extrusion disks are respectively fitted with the four extrusion bars. All the extrusion disks are extruded by setting the extrusion assembly.

[0010] Furthermore, it also includes a fastening assembly, which includes a connecting plate, a slot and a bolt. A connecting plate is fixed to the front end of the circumferential surface of the rotating shaft, and a front end of the connecting barrel is provided with evenly distributed slots. The upper end of the connecting plate is connected to the upper slot by a screw, and the rotating shaft is fixed by setting the fastening assembly.

[0011] Furthermore, a mounting ring is fixed to the rear end of the mounting barrel, and evenly distributed connecting holes are opened on the circumferential surface of the mounting ring. The mounting barrel is installed by providing the mounting ring and the connecting holes.

[0012] Furthermore, two corresponding limiting posts are fixed to the front end of the first synchronous pulley, and two corresponding limiting holes are provided at the front end of the second synchronous pulley. The limiting posts and the limiting holes correspond to each other. By setting the limiting posts and the limiting holes, the stability of the connection between the first synchronous pulley and the second synchronous pulley can be effectively improved.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the synchronous pulley that can be adjusted according to the bandwidth has the following advantages:

[0014] By setting up the extrusion assembly, the four extrusion bars can be rotated during use to separate them from all the extrusion disks. After separation, all the clamps will move toward the inside of the connecting barrel under the action of all the springs. In this case, the four clamps connected to the four clamping holes will be separated from the clamping holes. After separation, the second synchronous belt pulley can be pulled to move, so that the second synchronous belt pulley is away from or close to the first synchronous belt pulley. In this case, it can be adjusted according to the bandwidth of the synchronous belt without disassembly, which greatly improves efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0016] Figure 2 It is a left side sectional view of the utility model;

[0017] Figure 3 It is a front sectional view of the utility model.

[0018] In the figure: 1 mounting barrel, 2 first synchronous pulley, 3 adjustment assembly, 31 second synchronous pulley, 32 slider, 33 connecting ring, 4 fixing assembly, 41 clamping hole, 42 connecting barrel, 43 fixing ring, 44 connecting rod, 45 clamping head, 46 extrusion disk, 47 spring, 5 extrusion assembly, 51 rotating shaft, 52 extrusion strip, 6 fastening assembly, 61 connecting plate, 62 clamping groove, 63 bolt, 7 mounting ring, 8 connecting hole, 9 limiting column, 10 limiting hole. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-3 ,This embodiment provides a technical solution: a synchronous pulley adjustable according to the bandwidth, including a mounting barrel 1 and an adjustment component 3;

[0021] Installation barrel 1: The rear end of the circumferential surface is fixed with a first synchronous pulley 2, and a fixing component 4 and an extrusion component 5 are installed inside the installation barrel 1. The fixing component 4 and the extrusion component 5 cooperate with each other. The fixing component 4 includes a clamping hole 41, a connecting barrel 42, a fixing ring 43, a connecting rod 44, a clamping head 45, an extrusion disk 46 and a spring 47. Four corresponding clamping holes 41 are provided on the circumferential surface of the connecting ring 33. A connecting barrel 42 is fixed inside the installation barrel 1. The circumferential surface of the connecting barrel 42 is provided with evenly distributed mounting holes. A fixing ring 43 is fixed inside the mounting hole. A connecting rod 44 is slidably connected inside the fixing ring 43. A clamping head 45 is fixed at one end of the connecting rod 44, and an extrusion disk 46 is fixed at the other end of the connecting rod 44. A spring 47 is sleeved on the circumferential surface of the connecting rod 44. One end of the spring 47 is fixed to the end face of the fixing ring 43, and the other end of the spring 47 is fixed to the end face of the extrusion disk 46. Four clamping heads 45 corresponding to the four clamping holes 41 pass through four fixed rings 43 connected thereto and are clamped in the inside of the four clamping holes 41. The extrusion assembly 5 includes a rotating shaft 51 and an extrusion strip 52. A rotating hole is provided in the middle of the connecting barrel 42. The rotating shaft 51 is rotatably connected inside the rotating hole. Four corresponding extrusion strips 52 are fixed on the circumferential surface of the rotating shaft 51. All the extrusion discs 46 are respectively fitted with the four extrusion strips 52. The fastening assembly 6 also includes a connecting plate 61, a clamping groove 62 and a bolt 63. A connecting plate 61 is fixed to the front end of the circumferential surface of the rotating shaft 51. The front end of the connecting barrel 42 is provided with evenly distributed clamping grooves 62. The upper end of the connecting plate 61 is connected to the upper clamping groove 62 by a screw 63. The rotating shaft 51 is fixed by setting the fastening assembly 6, all the extrusion discs 46 are squeezed by setting the extrusion assembly 5, and the connecting ring 33 is fixed by setting the fixing assembly 4.

[0022] Adjustment component 3: includes a second synchronous pulley 31, a slider 32 and a connecting ring 33. The front end of the circumferential surface of the mounting barrel 1 is slidably connected to the second synchronous pulley 31. Four corresponding strip-shaped openings are opened on the circumferential surface of the mounting barrel 1. The inside of the strip-shaped openings is slidably connected to the slider 32. The four sliders 32 are all fixed inside the second synchronous pulley 31. The connecting ring 33 is fixed on the side of the four sliders 32 away from the second synchronous pulley 31. The second synchronous pulley 31 is arranged to cooperate with the first synchronous pulley 2 to complete the support of the synchronous belt.

[0023] Wherein: a mounting ring 7 is fixed to the rear end of the mounting barrel 1, and evenly distributed connecting holes 8 are opened on the circumferential surface of the mounting ring 7, and the mounting barrel 1 is installed by providing the mounting ring 7 and the connecting holes 8.

[0024] Among them: two corresponding limit columns 9 are fixed to the front end of the first synchronous belt pulley 2, and two corresponding limit holes 10 are opened at the front end of the second synchronous belt pulley 31. The limit columns 9 and the limit holes 10 correspond to each other. By setting the limit columns 9 and the limit holes 10, the stability of the connection between the first synchronous belt pulley 2 and the second synchronous belt pulley 31 can be effectively improved.

[0025] The working principle of the synchronous belt wheel that can be adjusted according to the bandwidth provided by the utility model is as follows: during use, the bolt 63 can be removed, and then the rotating shaft 51 can be rotated through the connecting plate 61. The rotation of the rotating shaft 51 drives the four extrusion bars 52 to rotate, so that they are separated from all the extrusion plates 46. After separation, all the clamping heads 45 will move to the inside of the connecting barrel 42 under the action of all the springs 47. In this case, the four clamping heads 45 connected to the four clamping holes 41 will be separated from the clamping holes 41. After separation, the second synchronous belt wheel 31 can be pulled to move, so that the second synchronous belt wheel 3 is away from or close to the first synchronous belt wheel 2. In this case, the width of the synchronous belt can be adjusted according to the bandwidth of the synchronous belt. Adjustment can be made without disassembly, which greatly improves efficiency. After adjustment, the four extrusion bars 52 are rotated again to squeeze all the extrusion plates 46. After refueling, all the connecting rods 44 are moved, and the movement of all the connecting rods 44 drives all the clamping heads 45 to move. In this case, the four clamping heads 45 corresponding to the four clamping holes 41 will enter the interior of the four clamping holes 41, and then the connecting plate 61 is fixed with bolts 63. In this case, the rotating shaft 51 and the four extrusion bars 52 can be fixed, thereby completing the fixation of the connecting ring 33. In this case, the second synchronous pulley 31 can be fixed, and the adjustment can be completed after fixation.

[0026] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A synchronous pulley adjustable according to the bandwidth, characterized in that: It comprises a mounting barrel (1) and an adjustment component (3); Mounting barrel (1): a first synchronous pulley (2) is fixed to the rear end of the circumferential surface, a fixing assembly (4) and an extrusion assembly (5) are installed inside the mounting barrel (1), and the fixing assembly (4) and the extrusion assembly (5) cooperate with each other; The adjustment component (3) comprises a second synchronous belt pulley (31), a slider (32) and a connecting ring (33); the front end of the circumferential surface of the mounting barrel (1) is slidably connected to the second synchronous belt pulley (31); four corresponding strip-shaped openings are opened on the circumferential surface of the mounting barrel (1); the inside of the strip-shaped openings is slidably connected to the slider (32); the four sliders (32) are all fixed inside the second synchronous belt pulley (31); and the connecting ring (33) is fixed on the side of the four sliders (32) away from the second synchronous belt pulley (31).

2. A synchronous pulley adjustable according to the bandwidth according to claim 1, characterized in that: The fixing assembly (4) comprises a clamping hole (41), a connecting barrel (42), a fixing ring (43), a connecting rod (44), a clamping head (45), an extrusion disk (46) and a spring (47); four corresponding clamping holes (41) are provided on the circumferential surface of the connecting ring (33); the connecting barrel (42) is fixed inside the mounting barrel (1); the connecting barrel (42) is provided with evenly distributed mounting holes on the circumferential surface; the fixing ring (43) is fixed inside the mounting hole; the fixing ring (43) is slidably connected inside the fixing ring (43) A rod (44), one end of the connecting rod (44) is fixed with a clamping head (45), the other end of the connecting rod (44) is fixed with an extrusion disk (46), a spring (47) is sleeved on the circumferential surface of the connecting rod (44), one end of the spring (47) is fixed on the end surface of the fixing ring (43), the other end of the spring (47) is fixed on the end surface of the extrusion disk (46), and four clamping heads (45) corresponding to the four clamping holes (41) pass through the four fixing rings (43) connected thereto and are clamped in the inside of the four clamping holes (41).

3. A synchronous pulley adjustable according to the bandwidth according to claim 2, characterized in that: The extrusion assembly (5) comprises a rotating shaft (51) and an extrusion strip (52). A rotating hole is provided in the middle of the connecting barrel (42). The rotating shaft (51) is rotatably connected inside the rotating hole. Four corresponding extrusion strips (52) are fixed on the circumferential surface of the rotating shaft (51). All the extrusion discs (46) are respectively fitted with the four extrusion strips (52).

4. A synchronous pulley adjustable according to the bandwidth according to claim 3, characterized in that: The invention also comprises a fastening assembly (6), wherein the fastening assembly (6) comprises a connecting plate (61), a clamping groove (62) and a bolt (63); a connecting plate (61) is fixed to the front end of the circumferential surface of the rotating shaft (51); a front end of the connecting barrel (42) is provided with uniformly distributed clamping grooves (62); and an upper end of the connecting plate (61) is connected to the upper clamping groove (62) via a bolt (63).

5. The synchronous pulley adjustable according to the bandwidth according to claim 1, characterized in that: A mounting ring (7) is fixed to the rear end of the mounting barrel (1), and evenly distributed connection holes (8) are provided on the circumferential surface of the mounting ring (7).

6. The synchronous pulley adjustable according to the bandwidth according to claim 1, characterized in that: Two corresponding limiting columns (9) are fixed at the front end of the first synchronous belt pulley (2), and two corresponding limiting holes (10) are opened at the front end of the second synchronous belt pulley (31), and the limiting columns (9) and the limiting holes (10) correspond to each other.

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