Synchronous wheel for electric machines

Abstract

This utility model discloses a synchronous pulley for a motor, relating to the field of synchronous pulley technology. It includes a motor drive shaft and a mounting cylinder mounted on the outer wall of the motor drive shaft. A tooth block adjustment mechanism is installed on the outer wall of the mounting cylinder. The tooth block adjustment mechanism includes a tooth block assembly and an adjustment assembly. A fixed ring and a movable ring are respectively installed at both ends of the tooth block assembly on the outer wall of the mounting cylinder. This utility model, through the movable ring in conjunction with the positioning mechanism, allows adjustment of the length of the tooth block body according to actual usage needs, thus adapting to toothed belts of different widths. Through the adjustment assembly, the tooth block body can be replaced according to actual usage needs to adapt to different toothed belts, expanding the application range of the synchronous pulley. These two methods complement each other, enabling adaptation to synchronous belts of different specifications, reducing the probability of needing to replace the entire synchronous pulley, increasing inventory and management costs, and reducing maintenance costs due to wear of partial teeth.

Description

Technical Field

[0001] This utility model relates to the field of synchronous pulley technology, specifically a synchronous pulley for an electric motor. Background Technology

[0002] A synchronous pulley for an electric motor is a mechanical transmission component used to transmit power and achieve precise synchronous motion. It is usually used in conjunction with a synchronous belt. Its core feature is that it achieves zero-slip power transmission through the meshing of the pulley teeth and the synchronous belt teeth, ensuring that the speeds of the input shaft and the output shaft are strictly synchronized.

[0003] A synchronous pulley for a motor, disclosed in patent publication number CN220320125U, includes a motor shaft, a connecting member, a pulley body, and a limiting block. The motor shaft has a first threaded groove evenly spaced on one side. A connecting member is externally connected to the motor shaft, and the motor shaft and connecting member are sleeved together. A second threaded groove is evenly spaced inside the connecting member, and a throttle is connected inside the second threaded groove. This invention achieves a stable connection between the motor shaft and the connecting member by providing multiple sets of first threaded grooves on the motor shaft, sleeved onto the motor shaft, and rotating the throttle on the connecting member. The first threaded teeth on the throttle rotate within the second threaded grooves, and a positioning rod moves via a movable block. Simultaneously, when the first threaded teeth exit the second threaded grooves, reversing the throttle causes the second threaded teeth on the positioning rod to rotate into the first threaded grooves on the motor shaft, thus completing the connection between the motor shaft and the connecting member.

[0004] The aforementioned and similar synchronous pulleys have limitations in application scope. The tooth width (lateral length) of traditional synchronous pulleys is fixed, and they can only match synchronous belts of a specific width. If a different width of synchronous belt needs to be replaced (e.g., from a narrow belt to a wide belt), the entire synchronous pulley must be replaced, increasing inventory and management costs. At the same time, the teeth of traditional synchronous pulleys are integrally machined (e.g., made of aluminum alloy or steel), and the tooth shape (e.g., trapezoidal teeth or arc teeth) is fixed and cannot be changed. If the tooth shape needs to be changed (e.g., from trapezoidal teeth to arc teeth), the entire synchronous pulley must be replaced, which is costly and wasteful of materials. If some teeth wear out, the entire synchronous pulley needs to be replaced, resulting in high maintenance costs. Therefore, this application is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a synchronous pulley for an electric motor to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a synchronous pulley for a motor, comprising a motor drive shaft and a mounting cylinder mounted on the outer wall of the motor drive shaft. A tooth block adjustment mechanism is mounted on the outer wall of the mounting cylinder. The tooth block adjustment mechanism includes a tooth block assembly and an adjustment assembly. A fixed ring and a movable ring are respectively mounted on both ends of the tooth block assembly on the outer wall of the mounting cylinder. The movable ring moves to adjust and adapt to toothed belts of different widths. A positioning mechanism for limiting the position of the movable ring is mounted on the tooth block assembly.

[0007] Furthermore, the toothed block assembly includes a toothed block body, with a vertical block fixedly connected to the inner wall of the toothed block body. A through slot corresponding to the vertical block is opened on the mounting cylinder, and the vertical block is inserted into the through slot to cooperate with the adjustment component to complete the limiting and releasing of the toothed block body.

[0008] Furthermore, the adjustment assembly includes a slot on the outer wall of one end of the mounting cylinder, electric push rods installed on the inner walls of both sides of the slot, a slot on the outer wall of the vertical block located in the slot, a base block installed on one end of the piston rod of the electric push rod, and an annular locking block installed on the outer wall of the base block. The locking block is inserted into the slot to limit the tooth block body, and the locking block is released by disengaging from the slot.

[0009] Furthermore, the outer wall of the motor drive shaft is provided with several square slots, and square blocks that are inserted into the square slots are installed on the vertical blocks.

[0010] Furthermore, the positioning mechanism includes positioning grooves on the outer walls of two of the toothed blocks, and vertical grooves on the outer wall of the moving ring corresponding to the positioning grooves. Positioning pins are inserted into the vertical grooves, and the moving ring is limited by the positioning pins in the vertical grooves being inserted into the positioning grooves.

[0011] Furthermore, striking plates and magnets are embedded in the bottom inner wall of the positioning groove, the positioning pin is made of iron, and a side groove corresponding to the tooth block body is opened on the outer wall of the moving ring. A side plate is inserted into the groove, and several ventilation grooves are opened on the side plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This motor uses a synchronous pulley. Through a set of moving rings and positioning mechanisms, the length of the tooth block body can be adjusted according to actual usage needs, thus adapting to toothed belts of different widths. Through the set of adjustment components, the tooth block body can be replaced according to actual usage needs to adapt to different toothed belts, expanding the application range of the synchronous pulley. By using these two methods in combination, it is possible to adapt to synchronous belts of different specifications, reducing the probability of needing to replace the entire synchronous pulley, increasing inventory and management costs, and reducing maintenance costs due to wear of partial teeth.

[0014] Meanwhile, by using square blocks and square slots, the mounting cylinder can be fixed to the motor drive shaft, improving installation strength. To further enhance the limiting strength, magnets can be installed at the bottom of the positioning slot, and the positioning pins are made of iron. The magnetic attraction further enhances the limiting strength. The side plates enhance the strength of the mounting cylinder, and the ventilation slots facilitate heat dissipation for the electric push rod. The tooth block body is installed and disassembled by inserting vertical blocks into the through slots and then using the adjustment components. The installation and disassembly processes are simple and quick, facilitating the replacement of the tooth block body. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the positioning mechanism structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the mounting cylinder of this utility model;

[0018] Figure 4 This is a schematic diagram of the card slot structure of this utility model.

[0019] In the diagram: 1. Motor drive shaft; 2. Mounting cylinder; 3. Fixed ring; 4. Moving ring; 5. Side plate; 6. Positioning mechanism; 601. Positioning groove; 602. Positioning pin; 603. Vertical groove; 7. Gear block adjustment mechanism; 701. Gear block body; 702. Vertical block; 703. Square groove; 704. Electric push rod; 705. Slot; 706. Annular locking block; 707. Base block; 8. Groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the process of the motor driving the toothed belt to rotate, a synchronous pulley is required. The synchronous pulley for motors provided by this utility model is specially used for the transmission operation of different toothed belts. In the process of using this synchronous pulley for transmission operation, it is necessary to adjust the position of the moving ring 4 or replace the tooth block body 701 according to the width of the toothed belt and the tooth pitch beforehand, so as to ensure the normal operation of the synchronous pulley and the toothed belt.

[0022] like Figures 1-4As shown, this utility model provides a technical solution: a synchronous pulley for a motor, including a motor drive shaft 1 and a mounting cylinder 2 mounted on the outer wall of the motor drive shaft 1. A tooth block adjustment mechanism 7 is mounted on the outer wall of the mounting cylinder 2. The tooth block adjustment mechanism 7 includes a tooth block assembly and an adjustment assembly. A fixed ring 3 and a movable ring 4 are respectively mounted on the outer wall of the mounting cylinder 2 at both ends of the tooth block assembly. The tooth block assembly is equipped with a positioning mechanism 6 for limiting the position of the movable ring 4.

[0023] It should be noted that the synchronous pulley is formed by the mounting cylinder 2 and the toothed block assembly. Both the mounting cylinder 2 and the motor drive shaft 1 are provided with mounting holes. The mounting cylinder 2 can be installed on the motor drive shaft 1 by using the mounting holes and fixing bolts. The moving ring 4 and the positioning mechanism 6 can be used to adjust the length of the toothed block body 701 according to the actual use requirements, so as to adapt to toothed belts of different widths. The toothed block body 701 can be replaced according to the actual use requirements to adapt to different toothed belts and expand the application range of the synchronous pulley.

[0024] like Figure 3 As shown, the toothed block assembly includes a toothed block body 701, and a vertical block 702 is fixedly connected to the inner wall of the toothed block body 701. The mounting cylinder 2 has a through groove corresponding to the vertical block 702. The vertical block 702 is inserted into the through groove and cooperates with the adjustment component to complete the limiting and releasing of the toothed block body 701.

[0025] It should be noted that the tooth block body 701 is inserted into the through slot by the vertical block 702 and then installed and disassembled with the adjustment component. The installation and disassembly process is simple and quick, which facilitates the replacement of the tooth block body 701.

[0026] like Figure 3 and Figure 4 As shown, the adjustment assembly includes a slot 8 on the outer wall of one end of the mounting cylinder 2. Electric push rods 704 are installed on the inner walls of both sides of the slot 8. A slot 705 is provided on the outer wall of the vertical block 702 located in the slot 8. A base block 707 is installed on one end of the piston rod of the electric push rod 704. An annular locking block 706 is installed on the outer wall of the base block 707. The annular locking block 706 is inserted into the slot 705 to limit the tooth block body 701. The annular locking block 706 is disengaged from the slot 705 to release the limitation on the tooth block body 701.

[0027] It should be noted that when the tooth block body 701 needs to be replaced, the electric push rod 704 is activated to drive the annular locking block 706 out of the locking groove 705. Then, the positioning mechanism 6 releases the limit on the moving ring 4, disassembling the moving ring 4. The tooth block body 701 is then pulled outward until the vertical block 702 moves out of the through groove, thus completing the disassembly of the tooth block body 701. Conversely, the tooth block body 701 can be installed. The specific shape of the tooth block body 701 can be customized according to the actual use to expand the application range of the synchronous pulley and reduce limitations.

[0028] like Figure 3 As shown, several square slots 703 are provided on the outer wall of the motor drive shaft 1, and square blocks inserted into the square slots 703 are installed on the vertical blocks 702.

[0029] It should be noted that by using the square block in conjunction with the square groove 703, the mounting cylinder 2 can be fixed to the motor drive shaft 1, thereby improving the installation strength.

[0030] like Figure 2 As shown, the positioning mechanism 6 includes positioning grooves 601 formed on the outer wall of two of the tooth block bodies 701. Vertical grooves 603 are formed on the outer wall of the moving ring 4 at the corresponding positions of the positioning grooves 601. Positioning pins 602 are inserted into the vertical grooves 603. The positioning pins 602 in the vertical grooves 603 are inserted into the positioning grooves 601 to limit the movement of the moving ring 4.

[0031] It should be noted that by moving the movable ring 4, the distance between the fixed ring 3 and the movable ring 4 can be shortened, thereby adjusting and adapting to different types of toothed belts. After adjustment, the movable ring 4 can be limited by inserting the positioning pin 602 into the vertical groove 603 and the positioning groove 601.

[0032] like Figure 1 As shown, striking plates and magnets are embedded in the bottom inner wall of the positioning groove 601. The positioning pin 602 is made of iron. The outer wall of the moving ring 4 has a side groove corresponding to the tooth block body 701. A side plate 5 is inserted into the groove 8. Several ventilation grooves are opened on the side plate 5.

[0033] It should be noted that, in order to improve the limiting strength, a magnet can be installed at the bottom of the positioning groove 601, and the positioning pin 602 is made of iron. The limiting strength is further improved by magnetic attraction. The strength of the mounting cylinder 2 can be improved by the side plate 5, and the heat dissipation of the electric push rod 704 can be facilitated by the ventilation groove.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A synchronous pulley for an electric motor, comprising a motor drive shaft (1) and a mounting cylinder (2) mounted on the outer wall of the motor drive shaft (1), characterized in that: A toothed block adjustment mechanism (7) is installed on the outer wall of the mounting cylinder (2). The toothed block adjustment mechanism (7) includes a toothed block assembly and an adjustment assembly. A fixed ring (3) and a movable ring (4) are respectively installed at both ends of the toothed block assembly on the outer wall of the mounting cylinder (2). The toothed belts of different widths are adjusted and adapted by moving the movable ring (4). A positioning mechanism (6) for limiting the position of the movable ring (4) is installed on the toothed block assembly.

2. A synchronous pulley for a motor according to claim 1, characterized in that: The toothed block assembly includes a toothed block body (701), and a vertical block (702) is fixedly connected to the inner wall of the toothed block body (701). A through groove corresponding to the vertical block (702) is opened on the mounting cylinder (2). The vertical block (702) is inserted into the through groove and cooperates with the adjustment component to complete the limiting and releasing of the toothed block body (701).

3. A synchronous pulley for a motor according to claim 1, characterized in that: The adjustment assembly includes a slot (8) on the outer wall of one end of the mounting cylinder (2), an electric push rod (704) is installed on the inner walls of both sides of the slot (8), a slot (705) is provided on the outer wall of the vertical block (702) located in the slot (8), a base block (707) is installed on one end of the piston rod of the electric push rod (704), and an annular locking block (706) is installed on the outer wall of the base block (707). The tooth block body (701) is limited by the annular locking block (706) being inserted into the slot (705), and the tooth block body (701) is released by the annular locking block (706) being disengaged from the slot (705).

4. A synchronous pulley for a motor according to claim 3, characterized in that: The outer wall of the motor drive shaft (1) is provided with several square grooves (703), and square blocks that are inserted into the square grooves (703) are installed on the vertical blocks (702).

5. A synchronous pulley for a motor according to claim 1, characterized in that: The positioning mechanism (6) includes positioning grooves (601) on the outer walls of two of the toothed block bodies (701). Vertical grooves (603) are provided on the outer wall of the moving ring (4) at the corresponding positions of the positioning grooves (601). Positioning pins (602) are inserted into the vertical grooves (603). The positioning pins (602) in the vertical grooves (603) are inserted into the positioning grooves (601) to limit the movement of the moving ring (4).

6. A synchronous pulley for a motor according to claim 5, characterized in that: The bottom inner wall of the positioning groove (601) is embedded with striking pieces and magnets. The positioning pin (602) is made of iron. The outer wall of the moving ring (4) is provided with a side groove corresponding to the tooth block body (701). A side plate (5) is inserted into the groove (8). Several ventilation grooves are provided on the side plate (5).

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