Double-belt synchronous wheel

CN224326640UActive Publication Date: 2026-06-05HEFEI FULELI PRECISION MASCH MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI FULELI PRECISION MASCH MFG CO LTD
Filing Date
2025-08-12
Publication Date
2026-06-05

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Abstract

The utility model relates to double belt synchronous wheel technical field, solved the problem that the length change of the belt is easy to occur under the long -time operation of synchronous wheel, and the heat energy after long -time work is easy to cause because of the extensibility of its own, lead to the belt easy to occur the situation of falling off. Specifically for a kind of double belt synchronous wheel, including mounting seat, the both sides of mounting seat inside are fixedly installed with limit plate, and the surface of limit plate is equipped with rotary groove, the inside rotation of rotary groove is connected with adjusting assembly, the surface of adjusting assembly is screw connected with support seat, the surface of support seat is equipped with installation groove, the inside rotation of installation groove is connected with synchronous wheel, the surface of synchronous wheel is sleeved with belt, adjusting assembly includes servo motor fixedly installed in the one end of mounting seat, the output of servo motor is fixedly installed with two -way screw rod, two -way screw rod is screwed through support seat, the surface of support seat is equipped with screw groove, and the size of screw groove and the size of two -way screw rod are adapted.
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Description

Technical Field

[0001] This utility model relates to the field of double-belt synchronous pulley technology, specifically a double-belt synchronous pulley. Background Technology

[0002] Synchronous belt drives consist of a closed annular rubber belt with evenly spaced teeth on its inner circumference and corresponding pulleys. During operation, the belt teeth mesh with the grooves of the pulleys to transmit motion and power. This is a meshing transmission, thus possessing the characteristics of gear drives, chain drives, and flat belt drives. It is widely used in the automotive, textile, printing and packaging equipment, sewing equipment, office equipment, laser engraving equipment, tobacco, financial equipment, stage lighting, communication and food machinery, medical machinery, steel machinery, petrochemical, instrumentation, and various precision machine tools industries.

[0003] However, under the long-term operation of the synchronous pulley, the belt is prone to changes in length due to its own extensibility and the heat generated after long-term operation, which can lead to the belt falling off. Existing equipment does not have a good effect on controlling the tension of the belt. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a double-belt synchronous pulley, which solves the problem that the belt is prone to slippage due to changes in length caused by its inherent extensibility and the heat generated after prolonged operation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a double-belt synchronous pulley, including a mounting base, wherein limit plates are fixedly installed on both sides inside the mounting base, a rotating groove is formed on the surface of the limit plate, an adjustment component is rotatably connected inside the rotating groove, a support base is threadedly connected to the surface of the adjustment component, an installation groove is formed on the surface of the support base, a synchronous pulley is rotatably connected inside the installation groove, and a belt is sleeved on the surface of the synchronous pulley;

[0006] The adjustment assembly includes a servo motor fixedly mounted on one end of the mounting base, and a bidirectional lead screw fixedly mounted on the output end of the servo motor, the bidirectional lead screw threaded through the support base.

[0007] In a specific embodiment, the surface of the support base is provided with a threaded groove, the size of which is adapted to the size of the bidirectional lead screw. The threaded groove facilitates the bidirectional lead screw to drive it to move synchronously.

[0008] In a specific embodiment, a rotating groove is provided in the middle of the surface of the limiting plate. The diameter of the rotating groove is larger than the diameter of the bidirectional lead screw. The bidirectional lead screw rotates inside the rotating groove. The rotating groove can guide the bidirectional lead screw and improve the stability of the bidirectional lead screw during rotation.

[0009] In one specific embodiment, several locking blocks are fixedly installed on the inner side of the belt. The size of the locking blocks is adapted to the size of the internal groove of the synchronous pulley. The setting of the locking blocks improves the stability when the synchronous pulley is rotated.

[0010] In one specific embodiment, a limiting groove is provided on the surface of the support base, and a rotating rod is rotatably connected inside the limiting groove. The rotating rod passes through the synchronous pulley, and the rotating rod improves the convenience of installing the synchronous pulley.

[0011] In one specific embodiment, a mounting base is fixedly installed on the bottom of the servo motor, and the bottom of the mounting base is fixedly installed on one end of the mounting seat. The design of the mounting base improves the efficiency of installing the servo motor.

[0012] Compared with the prior art, this utility model provides a double-belt synchronous pulley, which has the following beneficial effects:

[0013] In the technical solution disclosed in this utility model, by using the mounting base, limiting plate, adjusting component, support base and synchronous pulley, during use, the personnel install the synchronous pulley between the support base, and then the personnel adjust the spacing between the synchronous pulleys through the adjusting component to prevent the belt from becoming loose and causing the belt to fall off.

[0014] With the adjustment component set by this utility model, during use, when the servo motor is powered on, its output end will drive the bidirectional lead screw to rotate. When the bidirectional lead screw rotates, it will drive the support seat to move synchronously to the middle or both sides. The support seat will drive the synchronous pulley to move, and the distance between the synchronous pulleys will change. The tension of the belt will change accordingly, reducing the occurrence of the belt falling off due to being too loose. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the synchronous pulley structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the adjustment component structure of this utility model.

[0020] In the diagram: 1. Mounting base; 2. Limiting plate; 3. Adjustment component; 31. Servo motor; 32. Two-way lead screw; 4. Support base; 5. Synchronous pulley; 6. Belt; 7. Clip block. Detailed Implementation

[0021] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0022] Figures 1-4 In one embodiment of this utility model, a double-belt synchronous pulley includes a mounting base 1. Limiting plates 2 are fixedly installed on both sides inside the mounting base 1. A rotating groove is formed on the surface of the limiting plate 2. An adjusting component 3 is rotatably connected inside the rotating groove. A support base 4 is threadedly connected to the surface of the adjusting component 3. A mounting groove is formed on the surface of the support base 4. A synchronous pulley 5 is rotatably connected inside the mounting groove. A belt 6 is sleeved on the surface of the synchronous pulley 5.

[0023] The specific problem addressed in this embodiment is to solve the issue that the belt 6 is prone to slippage due to changes in length caused by the inherent extensibility of the belt and the heat generated during prolonged operation of the synchronous pulley 5. This invention utilizes the mounting base 1, limiting plate 2, adjusting component 3, support base 4, and synchronous pulley 5. During use, the synchronous pulley 5 is installed between the support bases 4, and then the spacing between the synchronous pulleys 5 is adjusted using the adjusting component 3 to prevent the belt 6 from becoming loose and slipping off.

[0024] The adjustment assembly 3 includes a servo motor 31 fixedly mounted on one end of the mounting base 1. A bidirectional lead screw 32 is fixedly mounted on the output end of the servo motor 31. The bidirectional lead screw 32 is threaded through the support base 4. The surface of the support base 4 has a threaded groove, the size of which is adapted to the size of the bidirectional lead screw 32. A rotating groove is formed in the middle of the surface of the limiting plate 2. The diameter of the rotating groove is larger than the diameter of the bidirectional lead screw 32. The bidirectional lead screw 32 rotates inside the rotating groove. A mounting base is fixedly mounted on the bottom of the servo motor 31. The bottom of the mounting base is fixedly mounted on one end of the mounting base 1. In this specific embodiment, during use, when the servo motor 31 is powered on, its output end will drive the bidirectional lead screw 32 to rotate. When the bidirectional lead screw 32 rotates, it will drive the support base 4 to move synchronously to the middle or both sides. The support base 4 will drive the synchronous pulleys 5 to move. The distance between the synchronous pulleys 5 changes, and the tension of the belt 6 changes accordingly, reducing the occurrence of the belt 6 falling off due to being too loose.

[0025] In this specific embodiment, several snap-fit ​​blocks 7 are fixedly installed on the inner side of the belt 6. The size of the snap-fit ​​blocks 7 is adapted to the size of the groove inside the synchronous pulley 5. A limiting groove is opened on the surface of the support base 4. A rotating rod is rotatably connected inside the limiting groove, and the rotating rod passes through the synchronous pulley 5.

[0026] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0027] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] 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 claims and their equivalents.

Claims

1. A double-belt synchronous pulley, comprising a mounting base (1), characterized in that: Limiting plates (2) are fixedly installed on both sides inside the mounting base (1). A rotating groove is provided on the surface of the limiting plate (2). An adjusting component (3) is rotatably connected inside the rotating groove. A support base (4) is threadedly connected to the surface of the adjusting component (3). A mounting groove is provided on the surface of the support base (4). A synchronous wheel (5) is rotatably connected inside the mounting groove. A belt (6) is sleeved on the surface of the synchronous wheel (5). The adjustment component (3) includes a servo motor (31) fixedly installed at one end of the mounting base (1), and a bidirectional lead screw (32) is fixedly installed at the output end of the servo motor (31), with the bidirectional lead screw (32) threaded through the support base (4).

2. The double-belt synchronous pulley according to claim 1, characterized in that: The surface of the support base (4) is provided with a threaded groove, the size of which is adapted to the size of the bidirectional lead screw (32).

3. A double-belt synchronous pulley according to claim 1, characterized in that: A rotating groove is provided in the middle of the surface of the limiting plate (2). The diameter of the rotating groove is larger than the diameter of the bidirectional lead screw (32). The bidirectional lead screw (32) rotates inside the rotating groove.

4. A double-belt synchronous pulley according to claim 1, characterized in that: Several snap-fit ​​blocks (7) are fixedly installed on the inner side of the belt (6), and the size of the snap-fit ​​blocks (7) is adapted to the size of the groove inside the synchronous pulley (5).

5. A double-belt synchronous pulley according to claim 1, characterized in that: The surface of the support base (4) is provided with a limiting groove, and a rotating rod is rotatably connected inside the limiting groove. The rotating rod passes through the synchronous pulley (5).

6. A double-belt synchronous pulley according to claim 1, characterized in that: The bottom of the servo motor (31) is fixedly mounted with a mounting base, and the bottom of the mounting base is fixedly mounted on one end of the mounting seat (1).