Belt pulley with changeable groove number

Abstract

The utility model relates to the field of belt pulleys, in particular to a belt pulley capable of changing the number of grooves, which comprises a first belt pulley, a connecting shaft is arranged in the first belt pulley, a plurality of T-shaped sliding grooves are formed in the outer surface of the connecting shaft, and a plurality of I-shaped connecting plates are slidably connected to the inner wall of each T-shaped sliding groove. A connecting shaft is inserted into a first belt wheel, then an I-shaped connecting plate is inserted into a corresponding T-shaped sliding groove to be connected with the first belt wheel, then a connecting ring is inserted into a corresponding fixing column, at the moment, a limiting rod is inserted along a corresponding first inserting groove, so that the fixing column is fixed, and at the moment, a second belt wheel is inserted; and an I-shaped connecting plate is connected with a connecting shaft until an inserting plate is inserted into a corresponding third inserting groove, the position of a limiting rod is fixed through the inserting plate, the limiting rod is circularly placed, and the groove number of the belt wheels can be rapidly changed by installing a second belt wheel.

Description

Technical Field

[0001] The utility model relates to the technical field of pulleys, in particular to a pulley with changeable groove numbers. Background Art

[0002] Pulleys are commonly used transmission mechanisms in the mechanical field. Pulleys in the prior art are usually disc-shaped, with a belt groove on the cylindrical surface of the pulley. The center of the pulley is connected to the output shaft of the motor, and the belt is wound in the belt groove of the pulley. The motor drives the pulley to rotate, and the pulley outputs power through the belt.

[0003] There are two types of pulleys: single-groove and grooved. The single-groove pulley has a groove on its circumferential surface, and the multi-groove pulley has multiple grooves on its circumferential surface. Multiple grooved pulleys can wrap multiple belts at the same time. When the wrap angle and tension remain unchanged, each belt can output the same power as the single-groove belt, so the multi-groove pulley can output greater power.

[0004] The existing pulley cannot change the number of grooves according to needs during use, and its scope of application is limited. During the use of the pulley, pulleys with different numbers of grooves need to be replaced as a whole according to different working conditions. This method easily increases the time for replacing the pulley, so a new solution is needed to solve this problem. Utility Model Content

[0005] In view of the above background technology, the prior art has the problem that the number of grooves of the pulley cannot be changed.

[0006] The utility model discloses a pulley with changeable groove number, including a first pulley, a connecting shaft is provided inside the first pulley, a plurality of T-shaped grooves are provided on the outer surface of the connecting shaft, the inner wall of each of the T-shaped grooves is slidably connected to a plurality of I-shaped connecting plates, the inner wall of the first pulley is plugged into the corresponding I-shaped connecting plates, a plurality of fixing columns are fixedly connected on the left and right sides of the first pulley, a first slot is provided on the outer surface of each of the fixing columns, a plurality of second pulleys are provided on the outer side of the first pulley, and the inner wall of each of the second pulleys is plugged into the corresponding I-shaped connecting plate.

[0007] Furthermore, a first thread groove is provided at one end of the connecting shaft, a connecting head is slidably connected to the outer surface of the connecting shaft, a second bolt is rotatably connected to the inner wall of the connecting head, and the outer surface of the second bolt is threadedly connected to the first thread groove.

[0008] Furthermore, a connecting ring is provided between the first pulley and the corresponding second pulley and two adjacent second pulleys, and the outer surface of each connecting ring is plugged into the corresponding first pulley and second pulley.

[0009] Furthermore, a plurality of second slots are formed on the outer surface of each connecting ring, and the inner wall of each second slot is plugged into the corresponding fixing column.

[0010] Furthermore, a third slot is provided on the outer surface of each connecting ring, an inner wall of each third slot is slidably connected to a limiting rod, and an outer surface of each limiting rod is plugged into the corresponding first slot.

[0011] Furthermore, an inserting plate is fixedly connected to the outer surface of each second pulley, and the outer surface of each inserting plate is plugged into the corresponding third slot.

[0012] Furthermore, the inner wall of each connecting ring is fixedly connected to a second fixed block, the inner wall of each second pulley and the first pulley is fixedly connected to a first fixed block, and a plurality of first bolts are provided on the outer side of the connecting shaft, and the outer surface of each first bolt is threadedly connected to the corresponding first fixed block and second fixed block.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The utility model is provided with a first pulley, a second pulley, a connecting ring, a connecting shaft, a T-shaped slide groove, a fixing column, an I-shaped connecting plate, a limiting rod and other components. The connecting shaft is inserted into the first pulley, and the I-shaped connecting plate is inserted into the corresponding T-shaped slide groove to connect it with the first pulley. The connecting ring is then inserted into the corresponding fixing column. At this time, the limiting rod is inserted along the corresponding first slot to fix the fixing column. At this time, the second pulley is inserted and connected to the connecting shaft through the I-shaped connecting plate until the inserting plate is inserted into the corresponding third slot. The position of the limiting rod is fixed by the inserting plate and it is placed in a cycle. By installing the second pulley, the number of grooves of the pulley can be quickly changed.

[0015] 2. The utility model provides a first fixing block, a second fixing block, a connecting ring, a first bolt and other components, and installs the connecting ring and the second pulley. At this time, the corresponding first fixing block and the second fixing block are connected by using the first bolt, so that the first bolt can connect and fix the fixing ring with the corresponding first pulley and the second pulley, thereby achieving the effect that the device can quickly fix the pulley with a changed number of grooves by fixing the connecting ring with the first pulley and the corresponding second pulley. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

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

[0018] Figure 2 This is a schematic diagram of the I-shaped connecting plate structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the third slot structure of the present utility model;

[0020] Figure 4 This is a schematic diagram of the connecting ring structure of the utility model.

[0021] In the figure: 1. First pulley; 2. Fixed column; 3. First slot; 4. First fixing block; 5. First bolt; 6. Connecting shaft; 7. Second pulley; 8. T-shaped slide; 9. First threaded groove; 10. Connecting head; 11. Second bolt; 12. I-shaped connecting plate; 13. Connecting ring; 14. Third slot; 15. Second fixing block; 16. Limit rod; 17. Second slot; 18. Insert plate. DETAILED DESCRIPTION

[0022] The following diagrams illustrate various embodiments of the present invention. For clarity, many physical details will be included in the following description. However, it should be understood that these physical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these physical details are not essential. Furthermore, to simplify the illustrations, some commonly used structures and components are depicted in a simplified schematic manner.

[0023] See also Figure 2 、 Figure 3 、 Figure 4 The utility model provides a pulley with changeable groove number, including a first pulley 1, a connecting shaft 6 is provided inside the first pulley 1, a T-shaped slot is provided on the inner wall of the first pulley 1, the connecting shaft 6 passes through the first pulley 1, and a plurality of T-shaped slots 8 are provided on the outer surface of the connecting shaft 6. The inner wall of each T-shaped slot 8 is slidably connected with a plurality of I-shaped connecting plates 12, and the inner wall of the first pulley 1 and the corresponding I-shaped connecting plates 12 are plugged in. By inserting the I-shaped connecting plates 12 along the corresponding T-shaped slots 8 and moving them to engage with the T-shaped slots on the corresponding first pulley 1, the first pulley 1 and the connecting shaft 6 can be quickly installed.

[0024] In this embodiment, a plurality of fixed columns 2 are fixedly connected to the left and right sides of the first pulley 1, and the fixed columns 2 are arranged on both sides of the first pulley 1. A first slot 3 is opened on the outer surface of each fixed column 2, and the first slot 3 is an annular groove. A plurality of second pulleys 7 are provided on the outer side of the first pulley 1. A plurality of second pulleys 7 can be provided, which are placed on both sides of the first pulley 1 respectively. The inner wall of each second pulley 7 is plugged into the corresponding I-shaped connecting plate 12. Specifically, the second pulley 7 can be installed on the connecting shaft 6 by using the I-shaped connecting plate 12, and the number of grooves of the pulley can be changed by stacking the first pulley 1 and the second pulley 7.

[0025] Replay Figure 2 A first thread groove 9 is provided at one end of the connecting shaft 6, and the first thread groove 9 is arranged at the port of the connecting shaft 6. The outer surface of the connecting shaft 6 is slidably connected with a connecting head 10, and the connecting head 10 can close the port of the connecting shaft 6 to prevent the I-shaped connecting plate 12 from slipping out. The inner wall of the connecting head 10 is rotatably connected with a second bolt 11, and the outer surface of the second bolt 11 is threadedly connected to the first thread groove 9. Specifically, by inserting the connecting head 10 into the open end of the connecting shaft 6, the connecting head 10 is fixed with the second bolt 11.

[0026] In a preferred embodiment, a connecting ring 13 is provided between the first pulley 1 and the corresponding second pulley 7 and the two adjacent second pulleys 7, and placement grooves are provided on both sides of the first pulley 1 and on the side of the second pulley 7 away from the first pulley 1, and the connecting ring 13 is placed in the corresponding placement groove, and the outer surface of each connecting ring 13 is plugged into the corresponding first pulley 1 and the second pulley 7. Specifically, before installing the second pulley 7, the connecting ring 13 is first placed in the corresponding placement groove.

[0027] like Figure 4 As shown, the outer surface of each connecting ring 13 is provided with a plurality of second slots 17, and the inner wall of each second slot 17 is plugged into the corresponding fixing column 2. Specifically, during the installation of the connecting ring 13, the installation of the connecting ring 13 can be made more stable by plugging the second slots 17 into the corresponding fixing column 2.

[0028] In this embodiment, a third slot 14 is provided on the outer surface of each connecting ring 13, and the inner wall of each third slot 14 is slidably connected to a limiting rod 16. After the connecting ring 13 is installed, the limiting rod 16 is used to be inserted into the corresponding third slot 14, and then the limiting rod 16 is moved to slide along the corresponding third slot 14. The outer surface of each limiting rod 16 is plugged into the corresponding first slot 3. Specifically, by moving the limiting rod 16 and inserting it into the corresponding first slot 3, the connecting ring 13 is connected and fixed to the corresponding first pulley 1 and second pulley 7 through the limiting rod 16.

[0029] In this embodiment, the outer surface of each second pulley 7 is fixedly connected to an insert plate 18, and the outer surface of each insert plate 18 is plugged into the corresponding third slot 14. Specifically, during the installation of the second pulley 7, the insert plate 18 will be inserted into the corresponding third slot 14. At this time, the insert plate 18 will limit the limit rod 16 to prevent the limit rod 16 from sliding.

[0030] In a preferred embodiment, the inner wall of each connecting ring 13 is fixedly connected to the second fixing block 15, and the inner wall of each second pulley 7 and the first pulley 1 is fixedly connected to the first fixing block 4. The first fixing block 4 and the second fixing block 15 have the same size, and the first pulley 1 and the second pulley 7 are fitted together, so that the first fixing block 4 and the corresponding second fixing block 15 are perfectly fitted together. A plurality of first bolts 5 are provided on the outside of the connecting shaft 6, and the outer surface of each first bolt 5 is threadedly connected to the corresponding first fixing block 4 and the second fixing block 15. Specifically, the first fixing block 4 is connected to the second fixing block 15 by using the first bolt 5, so that the connection between the first pulley 1 and the second pulley 7 is tighter and more stable.

[0031] The above is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.

Claims

1. A pulley with a variable number of grooves, comprising a first pulley (1), characterized in that: A connecting shaft (6) is provided inside the first pulley (1), and a plurality of T-shaped grooves (8) are provided on the outer surface of the connecting shaft (6). The inner wall of each T-shaped groove (8) is slidably connected to a plurality of I-shaped connecting plates (12). The inner wall of the first pulley (1) is plugged into the corresponding I-shaped connecting plates (12). The left and right sides of the first pulley (1) are fixedly connected to a plurality of fixing columns (2), and the outer surface of each fixing column (2) is provided with a first slot (3). The outer side of the first pulley (1) is provided with a plurality of second pulleys (7), and the inner wall of each second pulley (7) is plugged into the corresponding I-shaped connecting plate (12).

2. A pulley with a variable groove number according to claim 1, characterized in that: A first thread groove (9) is provided at one end of the connecting shaft (6); a connecting head (10) is slidably connected to the outer surface of the connecting shaft (6); a second bolt (11) is rotatably connected to the inner wall of the connecting head (10); and the outer surface of the second bolt (11) is threadedly connected to the first thread groove (9).

3. A pulley with a variable groove number according to claim 1, characterized in that: A connecting ring (13) is provided between the first pulley (1) and the corresponding second pulley (7) and two adjacent second pulleys (7), and the outer surface of each connecting ring (13) is plugged into the corresponding first pulley (1) and second pulley (7).

4. A pulley with a variable groove number according to claim 3, characterized in that: The outer surface of each connecting ring (13) is provided with a plurality of second slots (17), and the inner wall of each second slot (17) is plugged into the corresponding fixing column (2).

5. A pulley with a variable groove number according to claim 4, characterized in that: The outer surface of each connecting ring (13) is provided with a third slot (14), the inner wall of each third slot (14) is slidably connected to a limiting rod (16), and the outer surface of each limiting rod (16) is plugged into the corresponding first slot (3).

6. A pulley with a variable groove number according to claim 5, characterized in that: The outer surface of each second pulley (7) is fixedly connected to an inserting plate (18), and the outer surface of each inserting plate (18) is plugged into the corresponding third slot (14).

7. A pulley with a variable groove number according to claim 5, characterized in that: The inner wall of each connecting ring (13) is fixedly connected to a second fixing block (15), the inner wall of each second pulley (7) and the first pulley (1) is fixedly connected to a first fixing block (4), and a plurality of first bolts (5) are provided on the outer side of the connecting shaft (6), and the outer surface of each first bolt (5) is threadedly connected to the corresponding first fixing block (4) and second fixing block (15).

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