Synchronous pulley

Abstract

The utility model relates to the technical field of transmission, in particular to a synchronous pulley. Comprising two synchronizing wheels and a driving device, the two synchronous wheels are jointly engaged with the synchronous belt, and a first limiting groove is formed in the synchronous belt; the ribs are movably and symmetrically installed in the middle of the synchronous wheel, the two ribs are movably connected in a clamped mode to form a circular ring, and the ribs are slidably connected with the first limiting grooves. The two ribs are installed in the second limiting grooves of the synchronous wheel and located in the first limiting grooves in the sliding mode, so that the synchronous belt and the synchronous wheel are matched and not prone to deviation in the using process, and the effect of avoiding the deviation phenomenon is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission, in particular to a synchronous pulley. Background Art

[0002] As a key component in the transmission system, synchronous pulleys are gradually being widely used in various mechanical equipment, including printing machines, food packaging machines, mining equipment, textile machinery, etc., in order to meet the requirements of mechanical transmission systems for higher power and speed. Synchronous pulleys have the advantages of high precision, high efficiency, low noise and long life. Synchronous pulleys use advanced synchronous belt transmission technology. Through accurate tooth pitch design, they can accurately synchronize the rotation of multiple wheels, thereby achieving efficient and stable transmission functions.

[0003] As an important transmission element, synchronous pulleys can closely combine with the rack on the synchronous belt through their tooth grooves to achieve precise motion transmission, avoiding the error caused by belt slippage in traditional belt transmission. Compared with other transmission methods, synchronous pulleys usually require less maintenance because they are not easy to wear and do not require lubrication.

[0004] In the existing synchronous pulleys, the synchronous belt and the synchronous flange wheel match well at the beginning, but after a period of use, an axial gap is easily generated between the synchronous belt and the synchronous wheel flange, which makes the synchronous belt deviate during use. The phenomenon is obvious, which will affect the close fit between the synchronous pulley and the synchronous wheel flange, reduce the stability and accuracy of the transmission, and the axial gap increases. The synchronous pulley may slip or jump when transmitting power, resulting in reduced transmission efficiency. This will not only affect the overall performance of the equipment, but also increase energy consumption and operating costs. Utility Model Content

[0005] The utility model provides a synchronous pulley to overcome the shortcomings of the existing synchronous pulleys, that is, the axial gap is likely to be generated between the synchronous belt and the synchronous wheel after long-term use, and the synchronous belt is likely to have obvious deviation phenomenon.

[0006] The technical solution of the utility model: In order to solve the above-mentioned technical problems, the utility model provides a synchronous pulley, comprising: two synchronous wheels; a synchronous belt, the two synchronous wheels are commonly meshed with a synchronous belt, and a first limiting groove is opened inside the synchronous belt; and ribs, the middle part of the synchronous wheel has the ribs movably and symmetrically installed, the two ribs are movably clamped into a circular ring, and the ribs are both slidably connected to the first limiting groove.

[0007] Preferably, a second limiting groove is opened in the middle of the synchronous wheel, and the rib is movably installed inside the second limiting groove.

[0008] Preferably, it also includes: a guide rod, which is provided on the rib; a buckle, which is slidably connected to the guide rod and is movably connected to another rib.

[0009] Preferably, it also includes: a clamping rod, and a clamping rod is arranged in the middle of the rib.

[0010] Preferably, the synchronous wheel is symmetrically provided with a clamping groove, and the clamping rod is movably clamped in the clamping groove.

[0011] Preferably, the first limiting groove and the second limiting groove are connected end to end to form an annular groove.

[0012] Preferably, the first limiting groove and the second limiting groove are consistent with the size of the rib, and the axial gap is within ≤1mm.

[0013] Preferably, the ribs are made of nylon material.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model installs two ribs in the second limiting groove of the synchronous wheel, and the two ribs are slidably located inside the first limiting groove, so that the synchronous belt and the synchronous wheel are not easily offset during use, thereby achieving the effect of avoiding deviation.

[0016] 2. The utility model provides guide rods and buckles on the ribs and uses a buckle installation method to allow the two ribs to be connected to form a ring, thereby reducing the complexity of the process and the radial size. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the synchronous belt of the utility model.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the synchronous wheel and ribs of the utility model.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the synchronous wheel of the utility model.

[0021] Figure 5 It is a three-dimensional structural sectional view of the ribs, guide rods and buckles of the utility model.

[0022] The markings in the accompanying drawings are: 1-synchronous belt, 101-first limiting groove, 2-synchronous wheel, 201-second limiting groove, 3-rib, 301-guide rod, 302-buckle, 303-clamp rod. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Embodiment 1: A synchronous pulley, such as Figure 1-Figure 4 As shown, it includes a synchronous belt 1, a synchronous wheel 2 and a rib 3. Two synchronous wheels 2 are symmetrically meshed at both ends of the synchronous belt 1. A first annular limiting groove 101 is opened in the middle of the synchronous belt 1, and a second limiting groove 201 is opened in the middle of the synchronous wheel 2. A circular ring composed of two ribs 3 is movably sleeved on the two synchronous wheels 2 through the second limiting groove 201, and the rib 3 is made of nylon material. Nylon material is a plastic material with self-lubricating function, which can reduce the friction between the synchronous wheel 2 and the synchronous belt 1 during operation, causing serious wear of the synchronous belt 1. When the synchronous wheel 2 rotates, the circular ring structure composed of the two ribs 3 is always located inside the first limiting groove 101, and the size of the rib 3 is consistent with the first limiting groove 101 and the second limiting groove 201, so that the axial gap is ≤1mm, thereby avoiding the problem of axial gap between the synchronous belt 1 and the synchronous wheel 2 causing offset.

[0025] When producing and assembling the synchronous belt 1 wheel, two ribs 3 are installed in the second limit groove 201 of the synchronous wheel 2, so that the two ribs 3 are installed together on the synchronous wheel 2, and the two ribs 3 are slidably located inside the first limit groove 101, and then the synchronous belt 1 is wound around the two synchronous wheels 2, and the ribs 3 are both inside the first limit groove 101 and the second limit groove 201, and the ribs 3 are molded to replace the retaining rings at both ends of the synchronous wheel 2. The size of the ribs 3 is consistent with the first limit groove 101 and the second limit groove 201, so that the axial clearance is ≤1mm, so that the synchronous belt 1 and the synchronous wheel 2 are not easily offset during use, thereby avoiding deviation.

[0026] Embodiment 2: Based on embodiment 1, Figure 5 As shown, it also includes: a guide rod 301 and a buckle 302. The guide rod 301 is installed at one end of the rib 3, and a buckle 302 is set at the other end. The buckle 302 is slidably set on the guide rod 301, the buckle 302 fits with the buckle hole, and the buckle 302 can rotate around the guide rod 301. When the two ribs 3 are formed into a circular ring, the buckle 302 on one rib 3 is first slid out along the guide rod 301, and then the buckle 302 is rotated so that it is opposite to the buckle hole on the other rib 3, and then the buckle 302 is pressed to the original position along the guide rod 301, so that the two ribs 3 are connected, and the other ends of the two ribs 3 are buckled using the same method to form a circular ring structure sleeved on the synchronous wheel 2.

[0027] like Figure 5As shown, it also includes: a clamping rod 303, a clamping rod 303 is arranged in the middle of the rib 3, and clamping grooves are opened on both sides of the synchronous wheel 2. The rib 3 is movably clamped and fixed to the synchronous wheel 2 through the clamping groove and the clamping rod 303, and when the synchronous wheel 2 rotates, the rib 3 will not slide inside the second limiting groove 201.

[0028] When installing the rib 3 on the synchronous wheel 2, align the clamping rod 303 on the rib 3 with the corresponding clamping groove on the synchronous wheel 2 and insert it, and then make one end of one rib 3 with the guide rod 301 and the other end of the rib 3 without the guide rod 301, slide along the guide rod 301 through the buckle 302 to make the two ends clamped, so that the two ribs 3 are installed together on the synchronous wheel 2, and the rib 3 is molded and installed using buckles, thereby reducing the process steps and saving axial space, avoiding the problem that when manufacturing the flange of the synchronous wheel 2, a gap of 1.5mm to 2mm needs to be reserved at both ends for matching through riveting, interference fit and other process means, which increases the overall axial size.

[0029] The above-mentioned embodiments only express the preferred implementation of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications, improvements and substitutions can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A synchronous pulley, characterized in that: include: Synchronous wheels (2), two of which are provided; A synchronous belt (1), wherein the two synchronous wheels (2) are meshed with the synchronous belt (1), and a first limiting groove (101) is provided inside the synchronous belt (1); and The rib (3) is movably and symmetrically installed in the middle of the synchronous wheel (2), the two ribs (3) are movably clamped into a circular ring, and the ribs (3) are both slidably connected to the first limiting groove (101).

2. A synchronous pulley according to claim 1, characterized in that: A second limiting groove (201) is provided in the middle of the synchronous wheel (2), and the rib (3) is movably mounted inside the second limiting groove (201).

3. A synchronous pulley according to claim 2, characterized in that: Also includes: A guide rod (301), wherein the rib (3) is provided with a guide rod (301); The buckle (302) is slidably connected to the guide rod (301), and the buckle (302) is movably connected to another rib (3).

4. A synchronous pulley according to claim 3, characterized in that: Also includes: A clamping rod (303) is provided in the middle of the rib (3).

5. A synchronous pulley according to claim 4, characterized in that: The synchronous wheel (2) is symmetrically provided with a clamping groove, and the clamping rod (303) is movably clamped inside the clamping groove.

6. A synchronous pulley according to claim 5, characterized in that: The first limiting groove (101) and the second limiting groove (201) are both connected end to end to form an annular groove.

7. A synchronous pulley according to claim 6, characterized in that: The first limiting groove (101) and the second limiting groove (201) are both consistent in size with the rib (3), and the axial clearance is within ≤1 mm.

8. A synchronous pulley according to claim 7, characterized in that: The ribs (3) are made of nylon material.

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