Tensioning assembly, drive belt arrangement and transport apparatus

Abstract

The application relates to the technical field of transmission belts, aims to solve the technical problem that the service life of some known transmission belt assemblies is short, and provides a tensioning assembly, a transmission belt device and a transportation equipment. The tensioning assembly comprises a tensioning wheel and two stoppers. The tensioning wheel comprises a wheel body, the wheel body has a first side surface, a second side surface and an outer peripheral surface, the first side surface and the second side surface are arranged at intervals along the axial direction of the wheel body, the two ends of the outer peripheral surface are connected with the first side surface and the second side surface respectively, and the outer peripheral surface is used for abutting against a transmission belt. One stopper is rotatably connected with the first side surface around a rotation axis, the other stopper is rotatably connected with the second side surface around the rotation axis, the rotation axis is parallel to the axial direction, the projections of the two stoppers along the axial direction both extend to the outer side of the outer peripheral surface, and the two stoppers are used for limiting the transmission belt along the axial direction. The application has the beneficial effect of prolonging the service life of the transmission belt.

Description

Technical Field

[0001] This application relates to the field of transmission belt technology, and more specifically, to tensioning components, transmission belt devices, and transportation equipment. Background Technology

[0002] Some known drive belt assemblies are prone to wear during operation, resulting in a shorter service life. Utility Model Content

[0003] This application provides a tensioning assembly, a transmission belt device, and a transport device to solve the technical problem of short service life of transmission belt assemblies.

[0004] The embodiments of this application are implemented as follows: In a first aspect, this application provides a tensioning assembly for tensioning a transmission belt. The tensioning assembly includes a tensioning wheel and two stops. The tensioning wheel includes a wheel body having a first side surface, a second side surface, and an outer peripheral surface. The first side surface and the second side surface are spaced apart along the axial direction of the wheel body. The two ends of the outer peripheral surface are respectively connected to the first side surface and the second side surface, and the outer peripheral surface is used to abut against the transmission belt. One stop is rotatably connected to the first side surface about a rotation axis, and the other stop is rotatably connected to the second side surface about the rotation axis, which is parallel to the axial direction. The projections of both stops along the axial direction extend to the outer side of the outer peripheral surface, and the two stops are used to limit the transmission belt along the axial direction.

[0005] According to the tensioning assembly of this application, the outer circumferential surface of the tensioning wheel remains in contact with the transmission belt, thereby tensioning the transmission belt. When the transmission belt deviates towards the first or second side during operation, it will abut against one of the stop members. The stop member rotates relative to the tensioning wheel under the drive of the transmission belt, thereby reducing the friction between the stop member and the transmission belt, reducing the frictional force on the transmission belt, thus reducing frictional loss, extending the service life of the transmission belt, and reducing the risk of sudden breakage of the transmission belt.

[0006] In one possible implementation: The tensioning wheel also includes two mating parts, one of which is connected to the first side surface and the other of which is connected to the second side surface; the stop member includes a main body and a stop ring, the main body is rotatably connected to the mating part, the stop ring is connected to the edge of the main body, and the stop ring extends radially along the wheel body to the outer side of the outer peripheral surface.

[0007] In one possible implementation: The stop ring is flexible and can deform relative to the main body under the action of the deflection force of the transmission belt.

[0008] In one possible implementation: The main body has a mating hole along the axial direction; the tensioning assembly also includes a bearing, the inner ring of which is fixedly connected to the mating part, and the outer ring of which extends into the mating hole and is connected to the main body.

[0009] In one possible implementation: The first side has a first groove, one of the mating parts protrudes from the bottom surface of the first groove, and one bearing and the main body are disposed between the outer peripheral surface of the mating part and the side surface of the first groove; the second side has a second groove, another of the mating parts protrudes from the bottom surface of the second groove, and another bearing and the main body are disposed between the outer peripheral surface of the mating part and the side surface of the second groove.

[0010] In one possible implementation: The outer peripheral surface includes a central guide surface and two annular guide surfaces; one side of one annular guide surface is connected to the first side surface, and the other side is connected to one side of the central guide surface along the axial direction of the tensioning wheel, and the annular guide surface is inclined in the direction close to the first side surface; one side of the other annular guide surface is connected to the second side surface, and the other side is connected to the other side of the central guide surface along the axial direction of the tensioning wheel, and the annular guide surface is inclined in the direction close to the second side surface.

[0011] In one possible implementation: The intermediate guide surface includes an arc-shaped convex surface that protrudes outward along the radial direction of the tensioning wheel. The cross-sectional area of ​​one of the annular guide surfaces gradually decreases in the direction close to the first side, and the cross-sectional area of ​​the other annular guide surface gradually decreases in the direction close to the second side.

[0012] In one possible implementation: The outer peripheral surface includes an arc-shaped concave surface, the cross-sectional area of ​​which gradually increases from its middle part toward the first side surface, and the cross-sectional area gradually increases from its middle part toward the second side surface.

[0013] Secondly, this application provides a transmission belt device, comprising: a driving pulley and a driven pulley, the driving pulley and the driven pulley being spaced apart; a transmission belt, the transmission belt being wound around the driving pulley and the driven pulley; and a tensioning assembly, the tensioning assembly being used to tension the transmission belt, the tensioning assembly being the aforementioned tensioning assembly.

[0014] Thirdly, this application provides a transportation device, including: the aforementioned transmission belt device; a load-bearing component, one end of which is tractively connected to the transmission belt device and configured to move under the drive of the transmission belt device, and the other end of which is used to carry a product. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a transportation device according to an embodiment of this application.

[0017] Figure 2 This is a schematic diagram of the structure of a transmission belt device according to an embodiment of this application.

[0018] Figure 3 This is a schematic diagram of the structure of a tensioning component according to an embodiment of this application.

[0019] Figure 4 This is an exploded structural diagram of a tensioning component according to an embodiment of this application.

[0020] Figure 5 This is a cross-sectional view of a tensioning component according to an embodiment of this application.

[0021] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point XI.

[0022] Explanation of key component symbols: Transportation equipment 1 Rack 101 Support component 102 Support component 1021 Bearing component 1022 200 transmission belt device Drive wheel 201 Driven wheel 202 203 transmission belt Tensioning component 100 Tensioner 10 Coordination Department 11 First side view P1 Second side P2 outer peripheral surface P3 Intermediate guide surface P31 Annular guide surface P32 Stop 20 Main body 21 Stop ring 22 Matching hole K Bearing 30 Inner circle 31 Outer ring 32 Ball bearing 33 First groove C1 Second groove C2 The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0023] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is said to be "set on" another component, it can be directly set on the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Some embodiments of this application are described in detail. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] See Figure 1 This embodiment provides a transport device 1. The transport device 1 includes a frame 101, a drive belt device 200, and a load-bearing assembly 102. The drive belt device 200 is disposed on the frame 101. One end of the load-bearing assembly 102 is drively connected to the drive belt device 200 and is configured to move under the drive of the drive belt device 200. The other end of the load-bearing assembly 102 is used to carry products.

[0028] The transport equipment 1 can be a display screen transport equipment 1, and the product it transports can be a display screen.

[0029] In some embodiments, see Figure 2 The transmission belt device 200 includes a driving pulley 201, a driven pulley 202, a transmission belt 203, and a tensioning assembly 100. The driving pulley 201 and the driven pulley 202 are spaced apart. The transmission belt 203 is wound around the driving pulley 201 and the driven pulley 202. The tensioning assembly 100 is used to tension the transmission belt 203.

[0030] Optionally, see Figure 1 The support component 102 includes a support member 1021 and a carrier member 1022. One end of the support member 1021 is connected to the transmission belt 203. The carrier member 1022 is connected to the other end of the support member 1021. The carrier member 1022 is used to carry the product. The carrier member 1022 can carry the product through various methods such as supporting and gripping.

[0031] Optionally, the tensioning assembly 100 is located on the outer side of the drive belt 203. In other embodiments, the tensioning assembly 100 may also be located on the inner side of the drive belt 203.

[0032] See Figure 3 and Figure 4 The tensioning assembly 100 includes a tensioning wheel 10 and two stop members 20. The tensioning wheel 10 includes a wheel body with a first side surface P1, a second side surface P2, and an outer peripheral surface P3. The first side surface P1 and the second side surface P2 are spaced apart along the axial direction of the wheel body. The two ends of the outer peripheral surface P3 are respectively connected to the first side surface P1 and the second side surface P2, and the outer peripheral surface P3 is used to abut against the transmission belt 203. One stop member 20 is rotatably connected to the first side surface P1 about a rotation axis, and the other stop member 20 is rotatably connected to the second side surface P2 about a rotation axis parallel to the axial direction. The axial projections of both stop members 20 extend to the outside of the outer peripheral surface P3, and the two stop members 20 are used to limit the transmission belt 203 along the axial direction.

[0033] According to the tensioning assembly 100 of this embodiment, the outer peripheral surface P3 of the tensioning wheel 10 remains in contact with the transmission belt 203, thereby tensioning the transmission belt 203. When the transmission belt 203 deviates towards the first side P1 or the second side P2 during operation, it will abut against one of the stop members 20. The stop member 20 rotates relative to the tensioning wheel 10 under the drive of the transmission belt 203, thereby reducing the friction between the stop member 20 and the transmission belt 203, reducing the frictional force on the transmission belt 203, thereby reducing the frictional loss of the transmission belt 203, extending the service life of the transmission belt 203, and reducing the risk of sudden breakage of the transmission belt 203.

[0034] In some embodiments, see Figure 4 and Figure 5The tensioner 10 also includes two mating parts 11. One mating part 11 connects to the first side surface P1, and the other mating part 11 connects to the second side surface P2. The stop member 20 includes a main body 21 and a stop ring 22. The main body 21 is rotatably connected to the mating part 11, and the stop ring 22 connects to the edge of the main body 21, extending radially along the wheel body to the outer side of the outer peripheral surface P3. Thus, the stop member 20 and the tensioner 10 are rotatably connected through the main body 21 and the mating part 11. The stop ring 22 can limit the transmission belt 203 and reduce the wear of the transmission belt 203.

[0035] In some embodiments, the stop ring 22 is flexible and can deform relative to the main body 21 under the action of the offset force of the transmission belt 203. In this way, by deforming the stop ring 22, the limiting effect of the stop ring 22 on the transmission belt 203 is ensured, and the friction between the transmission belt 203 and the stop ring 22 can be further reduced.

[0036] Optionally, the material of the stop ring 22 may include wear-resistant rubber. Wear-resistant rubber is flexible and has good wear resistance, which can reduce the wear on the transmission belt 203 in a short time and further extend the service life of the transmission belt 203.

[0037] In some embodiments, see Figure 5 and Figure 6 The main body 21 has a mating hole K along the axial direction. The tensioning assembly 100 also includes a bearing 30. The inner ring 31 of the bearing 30 is fixedly connected to the mating part 11, and the outer ring 32 of the bearing 30 extends into the mating hole K and is connected to the main body 21.

[0038] Thus, the inner ring 31 and outer ring 32 of the bearing 30 mutually limit each other, confining the main body 21 to the tensioning pulley 10, achieving reliable assembly between the stop 20 and the tensioning pulley 10 with a lower-cost structure. Furthermore, this reduces the radial distance between the main body 21 and the outer peripheral surface P3, thereby reducing the radial extension dimension of the stop ring 22 along the tensioning pulley 10, which in turn facilitates the reliable stopping and limiting function of the stop ring 22 on the transmission belt 203. In addition, connecting the main body 21 and the tensioning pulley 10 via the bearing 30 reduces the friction between them, making the stop 20 easier to rotate.

[0039] Optionally, see Figure 5 and Figure 6 The bearing 30 also includes a plurality of balls 33. The plurality of balls 33 are arranged in a circular manner between the inner ring 31 and the outer ring 32.

[0040] In some embodiments, see Figure 5The first side surface P1 has a first groove C1, a mating part 11 protruding from the bottom surface of the first groove C1, and a bearing 30 and a main body 21 disposed between the outer peripheral surface P3 of the mating part 11 and the side surface of the first groove C1. The second side surface P2 has a second groove C2, another mating part 11 protruding from the bottom surface of the second groove C2, and another bearing 30 and a main body 21 disposed between the outer peripheral surface P3 of the mating part 11 and the side surface of the second groove C2. In this way, the assembly integration of the tensioning wheel 10 and the two stop members 20 can be improved, and the assembly reliability of the stop members 20 can be guaranteed.

[0041] In other embodiments, the main body 21 may be sleeved on the mating part 11 and fixedly connected to the inner ring 31 of the bearing 30. The outer ring 32 of the bearing 30 is fixedly connected to the groove side of the first groove C1 or the groove side of the second groove C2.

[0042] In some embodiments, see Figure 5 The outer peripheral surface P3 includes a central guide surface P31 and two annular guide surfaces P32. One annular guide surface P32 is connected to the first side surface P1 on one side and to the side of the central guide surface P31 along the axial direction of the tensioning wheel 10 on the other side. The annular guide surface P32 is inclined in the direction close to the first side surface P1. The other annular guide surface P32 is connected to the second side surface P2 on one side and to the other side of the central guide surface P31 along the axial direction of the tensioning wheel 10 on the other side. The annular guide surface P32 is also inclined in the direction close to the second side surface P2. Thus, during normal operation of the transmission belt 203, the central guide surface P31 abuts against the transmission belt 203, so that the tension force applied by the tensioning wheel 10 to the transmission belt 203 is located in the middle of the width direction of the transmission belt 203, thereby reducing the risk of the transmission belt 203 running off-center. When the transmission belt 203 deviates to either the first side P1 or the second side P2, the tension on the deviated side of the transmission belt 203 decreases. Since the annular guide surface P32 is inclined, it can guide the transmission belt 203 to move toward the deviated side, thereby automatically centering and returning to its original position.

[0043] In some embodiments, see Figure 5 The intermediate guide surface P31 includes an arc-shaped convex surface, which protrudes outward along the radial direction of the tensioning wheel 10. The cross-sectional area of ​​one annular guide surface P32 along the vertical axis gradually decreases in the direction close to the first side surface P1, and the cross-sectional area of ​​the other annular guide surface P32 along the vertical axis gradually decreases in the direction close to the second side surface P2.

[0044] Optionally, the annular guide surface P32 is a portion of an annular conical surface. See also... Figure 5Along the radial direction of the tensioning wheel 10, the distance between the connection point of the annular guide surface P32 and the arcuate convex surface and the connection point of the annular guide surface P32 and the first side surface P1 is H1, where 2 mm ≤ H1 ≤ 10 mm. Specifically, H1 can be any one of 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, or 10 mm. Along the radial direction of the tensioning wheel 10, the distance between the connection point of the annular guide surface P32 and the arcuate convex surface and the connection point of the annular guide surface P32 and the second side surface P2 is H2, where 2 mm ≤ H2 ≤ 10 mm. Specifically, H2 can be any one of 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, or 10 mm.

[0045] In other embodiments, the annular guide surface P32 can also be configured as an arc surface.

[0046] Optionally, the curvature of the convex surface is between 5° and 10°. Specifically, the curvature of the convex surface can be any one of 5°, 6°, 7°, 8°, 9°, or 10°.

[0047] In some embodiments, the outer peripheral surface P3 includes an arc-shaped concave surface, the cross-sectional area of ​​which gradually increases from its middle portion toward the first side surface P1, and the cross-sectional area gradually increases from its middle portion toward the second side surface P2.

[0048] Optionally, the curvature of the convex surface is between 1° and 10°. Specifically, the curvature of the convex surface can be any one of 1°, 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9° or 10°.

[0049] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A tensioning assembly for tensioning a transmission belt, characterized in that, The tensioning component includes: The tensioning pulley includes a pulley body, the pulley body having a first side surface, a second side surface, and an outer peripheral surface. The first side surface and the second side surface are spaced apart along the axial direction of the pulley body. The outer peripheral surface is connected to the first side surface and the second side surface on both sides along the axial direction, and the outer peripheral surface is used to abut against the transmission belt. Two stops are provided, one of which is rotatably connected to the first side surface about a rotation axis, and the other stop is rotatably connected to the second side surface about the rotation axis, which is parallel to the axial direction; the projections of both stops along the axial direction extend to the outer side of the outer peripheral surface, and the two stops are used to limit the transmission belt along the axial direction.

2. The tensioning assembly according to claim 1, characterized in that: The tensioning wheel also includes two mating parts, one of which is connected to the first side and the other of which is connected to the second side; The stop member includes a main body and a stop ring. The main body is rotatably connected to the mating part, and the stop ring is connected to the edge of the main body. The stop ring extends radially along the wheel body to the outer side of the outer peripheral surface.

3. The tensioning assembly according to claim 2, characterized in that: The stop ring is flexible and can deform relative to the main body under the action of the deflection force of the transmission belt.

4. The tensioning assembly according to claim 2, characterized in that: The main body has a mating hole along the axial direction; The tensioning assembly also includes a bearing, the inner ring of which is fixedly connected to the mating part, and the outer ring of which extends into the mating hole and is connected to the main body.

5. The tensioning assembly according to claim 4, characterized in that: The first side has a first groove, one of the mating parts protrudes from the bottom surface of the first groove, and one bearing and the main body are disposed between the outer peripheral surface of the mating part and the side surface of the first groove; the second side has a second groove, another of the mating parts protrudes from the bottom surface of the second groove, and another bearing and the main body are disposed between the outer peripheral surface of the mating part and the side surface of the second groove.

6. The tensioning assembly according to claim 1, characterized in that: The outer peripheral surface includes a central guide surface and two annular guide surfaces; one side of one annular guide surface is connected to the first side surface, and the other side is connected to one side of the central guide surface along the axial direction of the tensioning wheel, and the annular guide surface is inclined in the direction close to the first side surface; one side of the other annular guide surface is connected to the second side surface, and the other side is connected to the other side of the central guide surface along the axial direction of the tensioning wheel, and the annular guide surface is inclined in the direction close to the second side surface.

7. The tensioning assembly according to claim 6, characterized in that: The intermediate guide surface includes an arc-shaped convex surface that protrudes outward along the radial direction of the tensioning wheel. The cross-sectional area of ​​one of the annular guide surfaces gradually decreases in the direction close to the first side, and the cross-sectional area of ​​the other annular guide surface gradually decreases in the direction close to the second side.

8. The tensioning assembly according to claim 1, characterized in that: The outer peripheral surface includes an arc-shaped concave surface, the cross-sectional area of ​​which gradually increases from its middle part toward the first side surface, and the cross-sectional area gradually increases from its middle part toward the second side surface.

9. A transmission belt device, characterized in that, include: A driving wheel and a driven wheel are provided, with the driving wheel and the driven wheel being spaced apart. A drive belt, which is wound around the driving pulley and the driven pulley; The tensioning assembly is used to tension the transmission belt, and the tensioning assembly is the tensioning assembly as described in any one of claims 1 to 8.

10. A transportation device, characterized in that, include: The transmission belt device as described in claim 9; A load-bearing component, one end of which is tractively connected to the drive belt and configured to move under the drive of the drive belt, and the other end of which is used to carry the product.

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