Waterproof driven synchronous wheel structure and belt conveyor with same

By installing a triple-seal structure on the synchronous pulley of the belt conveyor, the problem of corrosion of the synchronous pulley in a humid environment is solved, achieving higher waterproofness and transmission stability.

CN224677075UActive Publication Date: 2026-08-25JIANGSU HONGXIN YITAI INTELLIGENT EQUIP CO LTD
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Patent Information

Application Number
CN202521504885.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-17
Publication Date
2026-08-25
Estimated Expiration
2035-07-17

AI Technical Summary

Technical Problem

The timing pulleys of existing belt conveyors are prone to corrosion in humid environments, which affects transmission accuracy.

Method used

It adopts a triple sealing structure, including an inner plate, an outer plate, a water seal ring, and an oil seal, forming the first, second, and third sealing lines to prevent liquid from entering the synchronous pulley.

Benefits of technology

The waterproofing of the timing pulley has been significantly improved, ensuring transmission accuracy and stability.

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Abstract

The application relates to a waterproof driven synchronous wheel structure and a belt conveyor with the same, wherein the waterproof driven synchronous wheel structure comprises a mounting plate, a driven synchronous wheel body and a sealing part. A pulley inner shaft part penetrates through a through hole, and the driven synchronous wheel is rotatably sleeved on the pulley inner shaft. The sealing part comprises an inner side plate, an outer side plate, a water sealing ring and an oil seal. The inner side plate is arranged on the side of the driven synchronous wheel close to the mounting plate, the outer side plate is arranged on the side of the driven synchronous wheel away from the mounting plate, the water sealing ring is sleeved on the circumferential outer side of the pulley inner shaft, and the two ends of the water sealing ring abut against the mounting plate and the inner side plate respectively. The inner side plate comprises a first plane and a second plane, the first plane and the second plane are vertically arranged, and the first plane, the second plane and the pulley inner shaft have an accommodating space therebetween, and the oil seal is arranged in the accommodating space. The technical scheme of the application effectively solves the problem of poor waterproofness of the synchronous wheel in the prior art.
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Description

Technical Field

[0001] This application relates to the technical field of belt conveyors, and more specifically, to a waterproof driven synchronous pulley structure and a belt conveyor having the same. Background Technology

[0002] Glass has a wide range of applications. To suit different usage environments, glass often needs to be cut. However, the edges of the cut glass are sharp and irregular. In order to improve the appearance and prevent cuts, the glass edges need to be polished during the glass processing.

[0003] Some existing devices (e.g., patent number CN 222114686U, titled "A Glass Edging Conveying Mechanism") require a belt conveyor to transport the glass during the edging process. An edging processing box is installed above the conveyor belt, containing a spray structure and a grinding wheel mechanism. The spray structure sprays a special grinding fluid, which is a core auxiliary material for ensuring processing quality. The grinding fluid not only removes most of the heat generated during friction between the grinding wheel and the glass but also reduces cutting resistance and improves edging accuracy. However, in this type of device, because the conveyor belt is exposed to a humid environment for extended periods, the synchronous pulley is prone to corrosion and water ingress, affecting transmission accuracy. Utility Model Content

[0004] This application provides a waterproof driven synchronous pulley structure and a belt conveyor having the same, to solve the problem of poor waterproof performance of synchronous pulleys in the prior art.

[0005] A waterproof driven synchronous pulley structure according to this application includes: a mounting plate, a driven synchronous pulley body, and a sealing part. The mounting plate has a through hole. The driven synchronous pulley body includes a pulley inner shaft and a driven synchronous pulley, with the pulley inner shaft portion passing through the through hole, and the driven synchronous pulley rotatably sleeved on the pulley inner shaft. The sealing part includes an inner side plate, an outer side plate, a water seal ring, and an oil seal. The inner side plate is disposed on the side of the driven synchronous pulley closer to the mounting plate, and the outer side plate is disposed on the side of the driven synchronous pulley away from the mounting plate. The water seal ring is sleeved on the circumferential outer side of the pulley inner shaft, and both ends of the water seal ring abut against the mounting plate and the inner side plate, respectively. The inner side plate includes a first plane and a second plane, which are perpendicularly arranged, and there is a receiving space between the first plane, the second plane, and the pulley inner shaft. The oil seal is disposed within the receiving space.

[0006] In some embodiments, the inner side plate further includes a third plane, which is perpendicular to the second plane. A water seal ring is fitted around the circumferential outer side of the second plane, and both ends of the water seal ring abut against the mounting plate and the third plane, respectively.

[0007] In some embodiments, the sealing part further includes two sets of O-rings, the first set of O-rings being disposed between the inner side plate and the driven synchronous wheel, and the second set of O-rings being disposed between the outer side plate and the driven synchronous wheel.

[0008] In some embodiments, the driven synchronous pulley body further includes two sets of bearings and a first collar. The two sets of bearings are disposed between the driven synchronous pulley and the inner shaft of the pulley. The two sets of bearings and the first collar are all sleeved on the circumferential outer side of the inner shaft of the pulley, and the first collar is located between the two sets of bearings.

[0009] In some embodiments, oil injection holes are provided on both the inner shaft of the pulley and the first collar, with the oil injection holes on the first collar located between the two sets of bearings.

[0010] In some embodiments, the driven synchronous pulley body further includes an end cap, which is disposed on the side of the inner shaft of the pulley away from the mounting plate, and is located between the inner shaft of the pulley and the outer plate.

[0011] In some embodiments, both the inner and outer side plates are connected to the driven synchronous wheel by bolts.

[0012] This application also provides a belt conveyor, which includes a waterproof driven synchronous pulley structure, a driving synchronous pulley structure, and a conveyor belt, wherein the conveyor belt, the driving synchronous pulley structure, and the driven synchronous pulley structure cooperate with each other.

[0013] In some embodiments, the active synchronizing pulley structure includes a drive shaft and an active synchronizing pulley, with the active synchronizing pulley sleeved on the circumferential outer side of the drive shaft, and a conveyor belt sleeved on the active synchronizing pulley and the driven synchronizing pulley.

[0014] In some embodiments, the active synchronizing pulley structure further includes a flat key and two sets of second collars. The drive shaft and the active synchronizing pulley transmit torque through the flat key. Both sets of second collars are sleeved on the circumferential outer side of the drive shaft, and the two sets of second collars are respectively disposed on both sides of the active synchronizing pulley.

[0015] The waterproof driven synchronous pulley structure, applying the technical solution of this application, includes: a mounting plate, a driven synchronous pulley body, and a sealing part. The mounting plate has a through hole. The driven synchronous pulley body includes a pulley inner shaft and a driven synchronous pulley, with the pulley inner shaft portion passing through the through hole, and the driven synchronous pulley rotatably fitted onto the pulley inner shaft. The sealing part includes an inner side plate, an outer side plate, a water seal ring, and an oil seal. The inner side plate is located on the side of the driven synchronous pulley closer to the mounting plate, and the outer side plate is located on the side of the driven synchronous pulley away from the mounting plate. The inner and outer side plates can prevent most of the liquid from entering the driven synchronous pulley, forming a first line of sealing. The water seal ring is fitted around the circumferential outer side of the pulley inner shaft, and both ends of the water seal ring abut against the mounting plate and the inner side plate, respectively. The water seal ring can prevent liquid from flowing from the gap between the mounting plate and the inner side plate along the pulley inner shaft into the driven synchronous pulley, forming a second line of sealing. The inner plate includes a first plane and a second plane, which are perpendicularly arranged. There is a space between the first plane, the second plane, and the inner shaft of the pulley. An oil seal is disposed within this space, forming a third sealing barrier to further prevent liquid from entering the driven synchronous pulley. This triple sealing significantly improves water resistance. The technical solution of this application effectively solves the problem of poor water resistance in existing synchronous pulleys. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This paper shows a schematic diagram of the internal structure of a waterproof driven synchronous pulley structure according to an embodiment of this application;

[0019] Figure 2 It shows Figure 1 Enlarged structural diagram at point A;

[0020] Figure 3 A side view of the waterproof driven synchronous pulley structure according to an embodiment of this application is shown.

[0021] Figure 4 This shows a structural schematic diagram of the waterproof driven synchronous pulley structure according to an embodiment of this application from another angle;

[0022] Figure 5 A schematic diagram showing the engagement of the active synchronizing pulley structure and the conveyor belt according to an embodiment of this application is provided.

[0023] Figure 6 A schematic diagram of the internal structure of the active synchronizing wheel structure according to an embodiment of this application is shown.

[0024] The above figures include the following reference numerals:

[0025] 10. Waterproof driven synchronous pulley structure; 11. Mounting plate; 12. Driven synchronous pulley body; 121. Pulley inner shaft; 1211. Oil injection hole; 122. Driven synchronous pulley; 123. Bearing; 124. First shaft collar; 125. End cover; 13. Sealing part; 131. Inner side plate; 1311. First plane; 1312. Second plane; 1313. Third plane; 132. Outer side plate; 133. Water seal ring; 134. Oil seal; 135. O-ring seal; 20. Driving synchronous pulley structure; 21. Drive shaft; 22. Driving synchronous pulley; 23. Flat key; 24. Second shaft collar; 30. Conveyor belt. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, rotated 90 degrees, or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0029] like Figures 1 to 4As shown, the embodiment relates to a waterproof driven synchronous pulley structure, including: a mounting plate 11, a driven synchronous pulley body 12, and a sealing part 13. The mounting plate 11 has a through hole. The driven synchronous pulley body 12 includes a pulley inner shaft 121 and a driven synchronous pulley 122. The pulley inner shaft 121 partially passes through the through hole, and the driven synchronous pulley 122 is rotatably sleeved on the pulley inner shaft 121. The sealing part 13 includes an inner side plate 131, an outer side plate 132, a water seal ring 133, and an oil seal 134. The inner side plate 131 is disposed on the side of the driven synchronous pulley 122 near the mounting plate 11, and the outer side plate 132 is disposed on the side of the driven synchronous pulley 122 away from the mounting plate 11. The water seal ring 133 is sleeved on the circumferential outer side of the inner shaft 121 of the pulley, and both ends of the water seal ring 133 abut against the mounting plate 11 and the inner side plate 131, respectively. The inner side plate 131 includes a first plane 1311 and a second plane 1312. The first plane 1311 and the second plane 1312 are arranged perpendicularly, and there is a receiving space between the first plane 1311, the second plane 1312, and the inner shaft 121 of the pulley. The oil seal 134 is disposed in the receiving space.

[0030] Applying the technical solution of this embodiment, the waterproof driven synchronous pulley structure 10 includes: a mounting plate 11, a driven synchronous pulley body 12, and a sealing part 13. The mounting plate 11 has a through hole. The driven synchronous pulley body 12 includes a pulley inner shaft 121 and a driven synchronous pulley 122. The pulley inner shaft 121 partially passes through the through hole, and the driven synchronous pulley 122 is rotatably sleeved on the pulley inner shaft 121. The sealing part 13 includes an inner side plate 131, an outer side plate 132, a water seal ring 133, and an oil seal 134. The inner side plate 131 is disposed on the side of the driven synchronous pulley 122 closer to the mounting plate 11, and the outer side plate 132 is disposed on the side of the driven synchronous pulley 122 away from the mounting plate 11. The inner side plate 131 and the outer side plate 132 can prevent most of the liquid from entering the driven synchronous pulley 122, forming a first line of sealing defense. A water seal ring 133 is fitted around the circumferential outer side of the inner shaft 121 of the pulley, with both ends of the water seal ring 133 abutting against the mounting plate 11 and the inner side plate 131, respectively. The water seal ring 133 prevents liquid from flowing from the gap between the mounting plate 11 and the inner side plate 131 along the inner shaft 121 into the driven synchronous pulley 122, forming a second sealing barrier. The inner side plate 131 includes a first plane 1311 and a second plane 1312, which are perpendicularly arranged. There is a receiving space between the first plane 1311, the second plane 1312, and the inner shaft 121 of the pulley. An oil seal 134 is disposed within this receiving space, forming a third sealing barrier and further preventing liquid from entering the driven synchronous pulley 122. This triple sealing significantly improves water resistance. The technical solution of this embodiment effectively solves the problem of poor water resistance of synchronous pulleys in the prior art.

[0031] like Figure 2 and Figure 3As shown, in some embodiments, the inner side plate 131 further includes a third plane 1313, which is perpendicular to the second plane 1312. A water seal ring 133 is fitted around the circumferential outer side of the second plane 1312, and both ends of the water seal ring 133 abut against the mounting plate 11 and the third plane 1313, respectively. The vertical projection of the water seal ring 133 is serrated, a design that achieves both good sealing and a certain buffering effect. The water seal ring 133 can also be disposed between the first plane 1311 and the mounting plate 11, abutting against both the first plane 1311 and the mounting plate 11, respectively.

[0032] like Figure 1 As shown, in some embodiments, the sealing part 13 further includes two sets of O-rings 135. The first set of O-rings 135 is disposed between the inner side plate 131 and the driven synchronous pulley 122, and the second set of O-rings 135 is disposed between the outer side plate 132 and the driven synchronous pulley 122. The first set of O-rings 135 can effectively seal the gap at the connection between the inner side plate 131 and the driven synchronous pulley 122, and the second set of O-rings 135 can effectively seal the gap at the connection between the outer side plate 132 and the driven synchronous pulley 122.

[0033] like Figure 1 As shown, in some embodiments, the driven synchronous pulley body 12 further includes two sets of bearings 123 and a first collar 124. The two sets of bearings 123 are disposed between the driven synchronous pulley 122 and the inner shaft 121 of the pulley. The two sets of bearings 123 and the first collar 124 are all sleeved on the circumferential outer side of the inner shaft 121 of the pulley, with the first collar 124 located between the two sets of bearings 123. The arrangement of the two sets of bearings 123 enables the rotation of the driven synchronous pulley 122 to be smoother. The two sets of bearings 123 and the first collar 124 are disposed between the inner side plate 131 and the outer side plate 132. The inner shaft 121 of the pulley has a stepped structure, so the shaft section of the inner shaft 121 near the mounting plate 11 and the end cover 125 can cooperate to limit the two sets of bearings 123, achieving a stable connection.

[0034] like Figure 1 As shown, in some embodiments, both the inner shaft 121 of the pulley and the first collar 124 are provided with oil injection holes 1211, and the oil injection holes 1211 on the first collar 124 are located between the two sets of bearings 123. Figure 1 The arrows in the diagram indicate the flow path of the lubricating oil. The inner shaft 121 of the pulley has two sets of oil injection holes in the vertical direction and an oil injection hole in the horizontal direction. The oil injection holes in the horizontal direction are connected to the oil injection holes in the vertical direction. The oil injection holes in the vertical direction are used to inject oil into the two sets of bearings 123 through the oil injection holes on the first collar 124.

[0035] like Figure 1As shown, in some embodiments, the driven synchronous pulley body 12 further includes an end cap 125. The end cap 125 is disposed on the side of the inner shaft 121 away from the mounting plate 11, and is located between the inner shaft 121 and the outer plate 132. After the outer plate 132 and the inner shaft 121 are fixed, the end cap 125 is also fixed. The end cap 125 not only helps to limit the bearing 123 together with the shaft segment of the inner shaft 121 and the first collar 124, but also further improves the sealing and waterproof performance.

[0036] like Figure 1 and Figure 4 As shown, in some embodiments, both the inner side plate 131 and the outer side plate 132 are connected to the driven synchronous wheel 122 by bolts, which facilitates installation and disassembly.

[0037] like Figure 5 As shown, the embodiment also relates to a belt conveyor, which includes a waterproof driven synchronous pulley structure 10, a driving synchronous pulley structure 20, and a conveyor belt 30. The conveyor belt 30, the driving synchronous pulley structure 20, and the driven synchronous pulley 122 cooperate to achieve transmission.

[0038] It should be noted that the belt conveyor also includes a drive motor and a support frame (not shown in the figure). The drive motor is used to transmit power, and the support frame is used to support the waterproof driven synchronous pulley structure 10 and the active synchronous pulley structure 20.

[0039] like Figure 5 As shown, in some embodiments, the active synchronizing pulley structure 20 includes a drive shaft 21 and an active synchronizing pulley 22. The active synchronizing pulley 22 is sleeved on the circumferential outer side of the drive shaft 21. The drive shaft 21 is driven by a drive motor to achieve rotation. The active synchronizing pulley 22 rotates synchronously with the drive shaft 21. A conveyor belt 30 is sleeved on the active synchronizing pulley 22 and the driven synchronizing pulley 122. The conveyor belt 30 is a toothed belt. The conveyor belt 30 meshes with the active synchronizing pulley 22 and the driven synchronizing pulley 122 to achieve transmission. The support frame has two sets of side support plates. The drive motor is mounted on one set of side support plates, and the other end of the drive shaft is rotatably mounted on the other set of side support plates for support. The mounting plate 11 is mounted on the side support plates according to the actual situation.

[0040] like Figure 6As shown, in some embodiments, the active synchronizing pulley structure 20 further includes a flat key 23 and two sets of second collars 24. The drive shaft 21 and the active synchronizing pulley 22 transmit torque through the flat key 23, enabling the drive shaft 21 and the active synchronizing pulley 22 mounted thereon to rotate under the drive of the drive motor. It should also be noted that the active synchronizing pulley structure 20 is rigidly connected to the waterproof driven synchronizing pulley structure 10 and does not require sophisticated waterproofing measures. Both sets of second collars 24 are fitted around the circumferential outer side of the drive shaft 21, and are respectively positioned on both sides of the active synchronizing pulley 22. The two sets of second collars 24 provide axial restraint to the active synchronizing pulley 22, making its rotation more stable.

[0041] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0042] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0043] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A waterproof driven synchronous pulley structure, characterized in that, include: Mounting plate (11), the mounting plate (11) having through holes; The driven synchronous pulley body (12) includes a pulley inner shaft (121) and a driven synchronous pulley (122). The pulley inner shaft (121) partially passes through the through hole, and the driven synchronous pulley (122) is rotatably sleeved on the pulley inner shaft (121). A sealing part (13) includes an inner side plate (131), an outer side plate (132), a water seal ring (133), and an oil seal (134). The inner side plate (131) is disposed on the side of the driven synchronous pulley (122) near the mounting plate (11), and the outer side plate (132) is disposed on the side of the driven synchronous pulley (122) away from the mounting plate (11). The water seal ring (133) is sleeved on the circumferential outer side of the inner shaft (121) of the pulley. The two ends of the water seal ring (133) abut against the mounting plate (11) and the inner side plate (131) respectively. The inner side plate (131) includes a first plane (1311) and a second plane (1312). The first plane (1311) and the second plane (1312) are arranged perpendicularly, and there is a receiving space between the first plane (1311), the second plane (1312) and the inner shaft (121) of the pulley. The oil seal (134) is disposed in the receiving space.

2. The waterproof driven synchronous pulley structure according to claim 1, characterized in that, The inner side plate (131) also includes a third plane (1313), which is perpendicular to the second plane (1312). The water sealing ring (133) is sleeved on the circumferential outer side of the second plane (1312), and the two ends of the water sealing ring (133) abut against the mounting plate (11) and the third plane (1313) respectively.

3. The waterproof driven synchronous pulley structure according to claim 1, characterized in that, The sealing part (13) also includes two sets of O-rings (135). The first set of O-rings (135) is disposed between the inner side plate (131) and the driven synchronous wheel (122), and the second set of O-rings (135) is disposed between the outer side plate (132) and the driven synchronous wheel (122).

4. The waterproof driven synchronous pulley structure according to claim 1, characterized in that, The driven synchronous pulley body (12) also includes two sets of bearings (123) and a first collar (124). The two sets of bearings (123) are disposed between the driven synchronous pulley (122) and the inner shaft (121) of the pulley. The two sets of bearings (123) and the first collar (124) are all sleeved on the circumferential outer side of the inner shaft (121) of the pulley. The first collar (124) is located between the two sets of bearings (123).

5. The waterproof driven synchronous pulley structure according to claim 4, characterized in that, Both the inner shaft (121) of the pulley and the first collar (124) are provided with oil injection holes (1211), and the oil injection holes (1211) on the first collar (124) are located between the two sets of bearings (123).

6. The waterproof driven synchronous pulley structure according to claim 4, characterized in that, The driven synchronous pulley body (12) also includes an end cover (125), which is disposed on the side of the inner shaft (121) of the pulley away from the mounting plate (11) and is located between the inner shaft (121) of the pulley and the outer plate (132).

7. The waterproof driven synchronous pulley structure according to claim 1, characterized in that, Both the inner side plate (131) and the outer side plate (132) are connected to the driven synchronous wheel (122) by bolts.

8. A belt conveyor, characterized in that, The belt conveyor includes the waterproof driven synchronous pulley structure (10) according to any one of claims 1-7, and the belt conveyor also includes a driving synchronous pulley structure (20) and a conveyor belt (30), the conveyor belt (30) cooperating with the driving synchronous pulley structure (20) and the driven synchronous pulley (122) structure.

9. The belt conveyor according to claim 8, characterized in that, The active synchronizing wheel structure (20) includes a drive shaft (21) and an active synchronizing wheel (22). The active synchronizing wheel (22) is sleeved on the circumferential outer side of the drive shaft (21), and the conveyor belt (30) is sleeved on the active synchronizing wheel (22) and the driven synchronizing wheel (122).

10. The belt conveyor according to claim 9, characterized in that, The active synchronizing wheel structure (20) also includes a flat key (23) and two sets of second collars (24). The drive shaft (21) and the active synchronizing wheel (22) transmit torque through the flat key (23). The two sets of second collars (24) are both sleeved on the circumferential outer side of the drive shaft (21), and the two sets of second collars (24) are respectively arranged on both sides of the active synchronizing wheel (22).

Citation Information

Patent Citations

  • Glass edging and conveying mechanism

    CN222114686U