A tire lifting device and a system for facilitating lifting of a tire

Abstract

The application relates to a tire jacking device and a system facilitating tire jacking, wherein the tire jacking device comprises a base, a driving member and a jacking platform. The driving member is fixedly connected with the base, the jacking platform is connected with the output end of the driving member, and the driving member is used for driving the jacking platform to ascend and descend along the vertical direction. The jacking platform comprises a mounting plate and at least two tire support rollers. The mounting plate is horizontally arranged at the output end of the driving member, the two tire support rollers are fixed to the top of the mounting plate, and the rolling surfaces of the two tire support rollers form a plane capable of supporting the lower sidewall of the tire, so that the stability of the tire can be maintained during the tire jacking process. A detection gap is formed between the tire support rollers, the detection gap is used for exposing the lower sidewall of the tire, so that a visual detection device can obtain a clear image of the lower sidewall of the tire, and the stability of the imaging quality is ensured.

Description

Technical Field

[0001] This application belongs to the technical field of tire appearance inspection equipment, and specifically relates to a tire lifting device and a system for facilitating tire lifting. Background Technology

[0002] As the only component in contact with the ground in vehicles such as motor vehicles and airplanes, tires play a crucial role in providing support, transmitting power and braking force, cushioning and filtering road vibrations, and ensuring driving safety and comfort. The structural integrity of the tire is key to ensuring these functions are fulfilled. Therefore, visual inspection of tires after manufacturing and repair is particularly important. Currently, the common inspection method is to use machine vision inspection instead of manual inspection. However, existing inspection devices struggle to stably lift the tire during inspection, leading to a risk of tire instability. Furthermore, while conventional lifting devices can effectively lift the tire, they provide insufficient exposed space on the tire sidewall, affecting the visual inspection equipment's ability to detect the tire. Utility Model Content

[0003] To address the problems of existing detection devices having difficulty in stably lifting tires during the detection process and insufficient exposure space on the lower sidewall of the tire, this application provides a tire lifting device that can stably lift tires of various sizes to assist in achieving better results in tire defect detection.

[0004] To achieve the above objectives, the technical solution of this application is as follows: A tire lifting device includes a base, a drive component, and a lifting platform. The drive component is fixedly connected to the base, and the lifting platform is connected to the output end of the drive component. The drive component drives the lifting platform to move up and down vertically. The lifting platform includes a mounting plate and at least two tire support rollers. The mounting plate is horizontally disposed at the output end of the drive component. The two tire support rollers are fixed to the top of the mounting plate, and the rolling surfaces of the two tire support rollers form a plane capable of supporting the lower tire sidewall. A detection gap is formed between the tire support rollers to expose the lower tire sidewall.

[0005] Furthermore, the number of tire support rollers is at least three, and the three tire support rollers are distributed circumferentially around the mounting plate, with an included angle α between two adjacent tire support rollers, wherein the included angle α satisfies 0°≤α≤120°.

[0006] Furthermore, the number of tire support rollers is four.

[0007] Furthermore, the number of tire support rollers is 5, of which three tire support rollers are parallel to each other and arranged in a triangular shape, and the detection gap formed between two of the tire support rollers is rectangular; the remaining two tire support rollers are symmetrically distributed between the adjacent ends of the three tire support rollers arranged in a triangular shape, and their axial direction is perpendicular to the three tire support rollers arranged in a triangular shape.

[0008] Furthermore, the output end of the drive unit is connected to a floating connector, and the end of the floating connector away from the drive unit is connected to the mounting plate.

[0009] Furthermore, the drive component is provided with a plurality of linear guide mechanisms at circumferential intervals. The two ends of the linear guide mechanisms are respectively connected to the base and the mounting plate. The linear guide mechanisms are used to make the mounting plate slide in a straight line relative to the base.

[0010] Furthermore, the linear guide mechanism includes a guide post and a linear bearing. The guide post is perpendicular to the base and its lower end is fixedly connected to the base. The linear bearing is sleeved on the guide post and slides with the guide post. One side of the linear bearing is fixedly connected to the mounting plate.

[0011] This application also relates to a system for facilitating tire lifting, including a conveying device and the tire lifting device. The conveying device includes a left conveying roller group and a right conveying roller group, with a first lifting channel formed between the left and right conveying roller groups parallel to the tire conveying direction. At least one tire support roller is parallel to the tire conveying direction and is disposed within the first lifting channel. The left and right conveying roller groups are each composed of a plurality of conveying rollers arranged in parallel, with a second lifting channel formed between at least two adjacent conveying rollers. At least one tire support roller is parallel to the conveying rollers and is disposed within the second lifting channel. The tire support roller can be lifted above the conveying rollers.

[0012] Furthermore, three tire support rollers parallel to the conveying direction of the tire are arranged in the first lifting channel, and the three tire support rollers are distributed in a triangular shape; two tire support rollers parallel to the conveying rollers are arranged in the second lifting channel, and are symmetrically distributed on both sides of the first lifting channel.

[0013] Furthermore, the tire support roller is capable of rotating about its axis.

[0014] By adopting the above technical solution, compared with the prior art, this application has at least the following beneficial effects: 1. Since at least two of the tire support rollers are spaced apart on the top of the mounting plate, and the rolling surface of the tire support rollers forms a plane that supports the tire, it is ensured that during the process of lifting the tire, the parts of the tire support rollers that contact the lower tire side are distributed on both sides of the tire's center of gravity, so that the force on the bottom of the tire is balanced during the lifting process, and the tire is less likely to tilt.

[0015] Second, the detection gap allows a portion of the lower tire sidewall to be exposed to the field of view of the visual inspection device below, ensuring that the visual inspection device can acquire a clear image of the lower tire sidewall and guaranteeing stable imaging quality. Attached Figure Description

[0016] Figure 1 This is an axonometric schematic diagram of the tire lifting device in the embodiment.

[0017] Figure 2 This is a partial front view of the tire lifting device in the embodiment.

[0018] Figure 3 This is an assembly diagram of the system for facilitating tire lifting in the embodiment.

[0019] In the diagram: 1. Base; 2. Drive unit; 3. Tire support roller; 4. Conveying device; 5. Conveying roller; 6. Mounting plate; 7. Bracket; 8. Floating joint; 9. Guide column; 10. Linear bearing; 11. Support arm; 12. Inspection gap; 13. Visual inspection equipment; 14. First lifting channel; 15. Second lifting channel. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The technical solutions of this application will be further described below with reference to the accompanying drawings of the embodiments, and this application is not limited to the following specific implementation methods.

[0021] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "inner," "outer," "left," "right," "front," "rear," "top," and "bottom" indicate directions or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the structure or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0022] The following is in conjunction with the appendix Figure 1 To be continued Figure 3The present application will be further described in detail with reference to specific embodiments.

[0023] This application discloses a tire lifting device, which includes a base 1, a drive component 2, and a lifting platform for horizontally placing a tire. The fixed end of the drive component 2 is fixedly connected to one side of the base 1, and the lifting platform is connected to the output end of the drive component 2. The drive component 2 can drive the lifting platform to rise and fall vertically, thereby lifting the tire. Specifically, the lifting platform includes a mounting plate 6 and at least two tire support rollers 3. The mounting plate 6 is horizontally positioned at the output end of the drive component 2, and the two tire support rollers 3 are fixedly spaced on the top of the mounting plate 6. The rolling surfaces of the two tire support rollers 3 form a plane that can horizontally support the lower tire sidewall for stable tire lifting. A detection gap 12 is formed between the tire support rollers 3, exposing a portion of the lower tire sidewall so that a visual inspection device 13 positioned below the detection gap 12 can inspect the lower tire sidewall.

[0024] Using the above-mentioned tire lifting device has at least the following beneficial effects: 1. Since at least two tire support rollers 3 are spaced apart on the top of the mounting plate 6, and the rolling surface of the tire support rollers 3 forms a plane that supports the tire, it is ensured that during the process of lifting the tire, the part of the tire support rollers 3 that contacts the lower tire side is distributed on both sides of the tire's center of gravity, so that the force on the bottom of the tire is balanced during the lifting process, and the tire is less likely to tilt.

[0025] Second, the detection gap 12 can expose a part of the lower tire sidewall to the field of view of the visual inspection device 13 below, so as to ensure that the visual inspection device 13 can obtain a clear image of the lower tire sidewall and ensure stable imaging quality.

[0026] Based on the above embodiments, this application also provides some specific implementation methods to improve the above solutions.

[0027] In the above embodiment, the two tire support rollers 3 can be distributed in parallel. Although this arrangement can basically achieve the above-mentioned beneficial effects, the contact area between the two tire support rollers 3 and the lower tire sidewall is limited. As the tire size increases, the area of ​​the lower tire sidewall suspended above the detection gap 12 becomes larger. During the detection process, the tire needs to rotate around its axis to cooperate with the vision inspection device 13 to take a comprehensive picture of the lower tire sidewall. The tire is prone to instability and wobbling during rotation, which is not conducive to keeping the tire level. Moreover, the weight of the tire increases with the increase in size, resulting in relatively large pressure applied to a single tire support roller 3, which also increases the tangential friction between the tire and a single tire support roller 3, which is equivalent to increasing the resistance when the tire rotates. This may further lead to tire instability. To reduce the adverse effects of the above problems, it is necessary to increase the number of tire support rollers 3.

[0028] The number of tire support rollers 3 can be three, four, or five, etc. Three tire support rollers 3 can be distributed circumferentially around the mounting plate 6, and adjacent tire support rollers 3 form an angle α, which satisfies 0°≤α≤120°. In one embodiment, the three tire support rollers 3 are arranged in a star shape, and the angle between adjacent tire support rollers 3 is 120°. Although this scheme can reduce the tangential friction force when the tire rotates to a certain extent, an excessively large angle can easily lead to tire jamming.

[0029] In another embodiment, there are four tire support rollers 3, which can be arranged in a cross or an X shape. Compared to the three-roller configuration, this reduces the angle between the tire support rollers 3, thereby reducing the probability of tire jamming and instability. However, for tire support rollers arranged in a cross shape, the resulting detection gap 12 is difficult to pass through the center of the tire, causing the center of the field of view of the vision inspection device 13 to not be directly aligned with the center of the exposed area on the underside of the tire. This is detrimental to the vision inspection device 13 acquiring images of regular shapes, affecting the accuracy of appearance inspection.

[0030] In a more effective implementation, see Appendix Figure 1 The system comprises five tire support rollers 3, three of which are parallel to each other and arranged in a triangular pattern along the conveyor 4. The remaining two tire support rollers 3 are symmetrically distributed between the adjacent ends of the triangularly arranged three tire support rollers 3 and are perpendicular to the axial direction of these three tire support rollers 3. Compared to the previous layout of four tire support rollers 3, this layout uses two parallel tire support rollers 3 instead of one of the four tire support rollers 3 arranged in a cross shape. That is, in the three triangularly arranged tire support rollers 3, the detection gap 12 formed between the two tire support rollers 3 is rectangular, so that the visual inspection device 13 located below the detection gap 12 can take a picture of the center of the exposed area of ​​the underside of the tire. In addition, the five tire support rollers 3 form a more stable support structure, which is beneficial for providing stable support for tires of more sizes and models.

[0031] Further, see Appendix Figure 2 The aforementioned driving component 2 is preferably a linear driving device such as a driving cylinder or an electric telescopic cylinder that can drive the mounting plate 6 to rise and fall in a vertical direction. In one embodiment where the driving component 2 is a driving cylinder, the lower end of the driving cylinder is fixedly connected to the base 1 in a vertical direction, and the output end of the driving cylinder is connected to a floating joint 8, the movable end of the floating joint 8 being connected to the mounting plate 6.

[0032] During the process of the drive cylinder driving the mounting plate 6 to move in the vertical direction, the floating joint 8 can not only compensate for the assembly error between the mounting plate 6 and the drive cylinder in the guiding direction and reduce the deviation angle of the output shaft of the drive cylinder from the Z axis during the lifting process, but also absorb the vibration and impact on the drive cylinder caused by the change of center of gravity during the tire rotation, thereby ensuring that the drive cylinder only bears the force in the Z axis direction during the lifting process and extending the service life of the drive cylinder.

[0033] Furthermore, to ensure that the lifting platform remains level during the lifting process, the aforementioned drive component 2 is provided with several linear guide mechanisms at circumferential intervals. These linear guide mechanisms are evenly distributed around the drive component 2 and their two ends are respectively connected to the base 1 and the mounting plate 6. They can guide the mounting plate 6 to move in a straight line relative to the base 1 in the vertical direction, thereby dispersing the interference of the tire gravity on the level of the lifting platform and the driving direction of the drive component 2.

[0034] In one embodiment, the linear guide mechanism includes a guide post 9 and a linear bearing 10. The guide post 9 is distributed vertically around the drive member 2. The guide post 9 is perpendicular to the base 1 and its lower end is fixedly connected to the base 1 via a flange. The linear bearing 10 is sleeved on the side of the guide post 9 and slides with the guide post 9. The upper end of the linear bearing 10 is fixedly connected to the bottom of the mounting plate 6 via a flange. To allow the guide post 9 to slide relative to the linear bearing 10, the mounting plate 6 and the flange are provided with through holes relative to the linear bearing 10. Under the constraint of the linear bearing 10, the mounting plate 6 can only move vertically upward along the guide post 9 under the thrust of the drive member 2 along the Z-axis. When the output shaft of the drive member 2 moves downward, the mounting plate 6 can move vertically downward along the guide post 9, so that the connection between the output shaft and the mounting plate 6 is not subject to forces deviating from the Z-axis, further enhancing the protection of the drive member 2 and ensuring that the tire can always move up and down in the vertical direction.

[0035] In another embodiment, the linear guide mechanism includes a pair of X-shaped cross arms symmetrically distributed on both sides of the drive member. Each pair of X-shaped cross arms includes two connecting rods hinged in an X-shape. The two ends of the connecting rods are respectively hinged to the base 1 and the mounting plate 6, and at least one of the connecting rods can slide along the horizontal direction of the base 1 at its hinged portion. When the drive member 2 drives the mounting plate 6 to move up and down, the connecting rods of the pair of X-shaped cross arms open and close around their central hinged portion, thereby guiding the mounting plate to rise and fall in a straight line.

[0036] To reduce the impact generated when the drive component 2 drives the mounting plate 6 to descend rapidly, hydraulic buffers are also provided on both sides of the drive component 2 to offset the impact of the descent of the mounting plate 6.

[0037] In addition, this application also discloses a system for facilitating the lifting of tires, see appendix. Figure 3 The system includes the aforementioned tire lifting device and a conveying device 4 for conveying tires. The conveying device 4 includes a left conveying roller group and a right conveying roller group, which are located on the same horizontal plane to form a roller channel capable of directional conveying of tires. A first lifting channel 14 parallel to the tire conveying direction is formed between the left and right conveying roller groups, and at least one tire support roller 3 of the aforementioned tire lifting device is arranged parallel to the tire conveying direction within the first lifting channel 14.

[0038] The left and right conveyor roller groups are each composed of several conveyor rollers 5 arranged in parallel, and a second lifting channel 15 is formed between at least two adjacent conveyor rollers 5. The tire lifting device has at least one tire support roller 3 parallel to the conveyor roller 5 and arranged in the second lifting channel 15, so that the rolling surfaces of at least two tire support rollers 3 can form a plane supporting the lower tire sidewall.

[0039] Specifically, the conveying device 4 also includes supports for horizontally supporting the left and right conveying roller groups. In one embodiment, the support has a crossbeam below the roller conveyor, and the base 1 is located below the conveying roller 5 of the conveying device 4. The base 1 is a frame formed by connecting several support beams to each other, which can bear weight and support other components. The frame is fixed horizontally to the crossbeam between the supports by bolts or other connecting components, and the center of the frame is located between the left and right conveying roller groups. The driving member 2 is fixed to the inner side of the frame, thereby driving the tire support roller 3 from below the roller conveyor through the first lifting channel 14 and the second lifting channel 15 to reach above the conveying roller 5 to lift and support the tire.

[0040] Furthermore, to ensure the tire-lifting system can stably lift the tire and allow the visual inspection device 13 to be positioned at the center of the roller conveyor to capture images of the tire's underside, the lifting platform preferably employs a layout of five tire support rollers 3. Three of these tire support rollers 3 are parallel to the tire's conveying direction and arranged in a triangular pattern within the first lifting channel 14. The remaining two tire support rollers 3 are parallel to the conveying rollers 5 and positioned in the second lifting channel 15, symmetrically distributed on both sides of the first lifting channel 14. This not only creates a lifting platform that stably supports the tire, but also places the rectangular inspection gap 12 formed between two of the triangularly arranged tire support rollers 3 in the middle of the left and right conveying roller groups. When the tire is lifted, the area of ​​the tire's underside exposed in the inspection gap 12 is also located in the middle of the left and right conveying roller groups, allowing the visual inspection device 13 to be positioned at the center of the roller conveyor to capture images of the tire's underside, thus obtaining images of the underside with regular edges and improving the accuracy of defect detection.

[0041] To reduce the axial friction between the tire and the tire support roller 3, in any of the above embodiments, the tire support roller 3 is rotatable around its axis. Specifically, the tire support roller 3 includes a roller and a rotating shaft rotatably sleeved with the inner side of the roller. Columnar supports 7 are connected to both ends of the rotating shaft. To reduce the area of ​​the mounting plate 6 and prevent it from encroaching on the detection gap 12, the top of the mounting plate 6 is provided with a number of support arms 11 equal to the number of tire support rollers 3. One end of each support arm 11 extends from the top edge of the mounting plate 6 and avoids the detection gap 12. The supports 7 are all fixedly connected to the support arms 11. When the drive unit 2 is in its initial state, the supports 7 ensure that the height of the tire support roller 3 is no higher than the height of the conveyor roller 5. When the tire is lifted by the tire support roller 3 above the conveyor roller 5, the tire support roller 3, which is rotatable around its axis, rotates with the tire, thereby reducing frictional damage to the tire sidewall and facilitating smooth rotation of the tire around its axis.

[0042] Based on the above-mentioned tire lifting device, the following effects can be achieved: the conveying device 4 conveys the tire through the center of the detection gap 12 and to the top of the lifting platform; the tire support rollers 3 rise out from the first lifting channel 14 and the second lifting channel 15 respectively and lift the tire in the vertical direction; the tire support rollers 3 rotate with the tire, reducing the probability of tire jamming and keeping the tire horizontal and stable during rotation; the visual inspection device 13 located in the detection gap 12 can take pictures and inspect the lower tire sidewall exposed in the center of the detection gap 12 during the tire rotation, increasing the shooting range and helping to improve the detection accuracy.

[0043] Obviously, the above embodiments of this application are merely examples for clearly illustrating this application, and are not intended to limit the implementation of this application. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A tire lifting device, characterized in that, The device includes a base, a drive unit, and a lifting platform. The drive unit is fixedly connected to the base, and the lifting platform is connected to the output end of the drive unit. The drive unit is used to drive the lifting platform to move up and down in a vertical direction. The lifting platform includes a mounting plate and at least two tire support rollers. The mounting plate is horizontally disposed at the output end of the drive unit, and the two tire support rollers are fixed to the top of the mounting plate. The rolling surfaces of the two tire support rollers form a plane that can support the lower tire sidewall. A detection gap is formed between the tire support rollers to expose the lower tire sidewall.

2. The tire lifting device according to claim 1, characterized in that, The number of tire support rollers is at least three, and the three tire support rollers are distributed circumferentially around the mounting plate, with an included angle α between two adjacent tire support rollers, the included angle α satisfying 0°≤α≤120°.

3. The tire lifting device according to claim 2, characterized in that, The number of tire support rollers is 4.

4. The tire lifting device according to claim 2, characterized in that, The number of tire support rollers is 5, of which three tire support rollers are parallel to each other and arranged in a triangular shape, and the detection gap formed between two of the tire support rollers is rectangular; the remaining two tire support rollers are symmetrically distributed between the adjacent ends of the three tire support rollers arranged in a triangular shape, and their axial direction is perpendicular to the three tire support rollers arranged in a triangular shape.

5. The tire lifting device according to claim 1, characterized in that, The output end of the drive unit is connected to a floating connector, and the end of the floating connector away from the drive unit is connected to the mounting plate.

6. The tire lifting device according to claim 5, characterized in that, The drive component is provided with several linear guide mechanisms at circumferential intervals. The two ends of the linear guide mechanisms are respectively connected to the base and the mounting plate. The linear guide mechanisms are used to make the mounting plate slide in a straight line relative to the base.

7. The tire lifting device according to claim 6, characterized in that, The linear guide mechanism includes a guide post and a linear bearing. The guide post is perpendicular to the base and its lower end is fixedly connected to the base. The linear bearing is sleeved on the side of the guide post and slides with the guide post. One side of the linear bearing is fixedly connected to the mounting plate.

8. A system for facilitating the lifting of tires, characterized in that, Includes a conveying device and a tire lifting device as described in any one of claims 1 to 7; The conveying device includes a left conveying roller group and a right conveying roller group. A first lifting channel parallel to the tire conveying direction is formed between the left conveying roller group and the right conveying roller group. At least one tire support roller is parallel to the tire conveying direction and is disposed in the first lifting channel. The left conveying roller group and the right conveying roller group are each composed of several conveying rollers arranged in parallel. A second lifting channel is formed between at least two adjacent conveying rollers. At least one tire support roller is parallel to the conveying rollers and is disposed in the second lifting channel. The tire support roller can be lifted above the conveyor roller.

9. The system for facilitating tire lifting according to claim 8, characterized in that, Three tire support rollers parallel to the conveying direction of the tire are arranged in the first lifting channel, and the three tire support rollers are distributed in a triangular shape; two tire support rollers parallel to the conveying roller are arranged in the second lifting channel, and are symmetrically distributed on both sides of the first lifting channel.

10. The system for facilitating tire lifting according to claim 9, characterized in that, The tire support roller is capable of rotating about its axis.

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