A circular track conveying device

Abstract

This utility model relates to the field of circular conveying technology, and particularly to a circular track conveying device, including a guide rail structure and a slide table. The slide table is slidably fitted with the guide rail structure. A bullseye bearing is provided at the bottom of the slide table, abutting against the upper wall of the guide rail structure. A buffer assembly is also provided at the bottom of the slide table, including an elastic element disposed between the bullseye bearing and the slide table. When the slide table is under load, it can transmit pressure to the elastic element, causing the elastic element to compress and thus buffering the pressure on the bullseye bearing. This utility model aims to solve the technical problem of existing circular track conveying devices where the slider lacks a buffer structure, causing the load to be directly transmitted to the bullseye bearing when the slider is subjected to a sudden impact while carrying a heavy object, leading to accelerated wear and shortened service life of the bullseye bearing.

Description

Technical Field

[0001] This utility model relates to the field of ring conveying technology, specifically to a ring track conveying device. Background Technology

[0002] In the fields of automated production and material flow, such as logistics sorting, automotive parts assembly, and electronic component transfer, the circular track conveyor has become one of the core equipment for improving production efficiency and automation level due to its advantages of high space utilization, closed-loop controllable conveying path, and ability to realize continuous material circulation.

[0003] For example, a circular track conveying device is disclosed in the utility model patent with authorization announcement number CN216888644U. Although the device improves the load-bearing capacity by setting multiple bullseye bearings at the bottom of the slider, the bullseye bearings are rigidly connected to the bottom of the slider without a buffer structure. This means that if the slider is subjected to an instantaneous impact while carrying heavy objects, the load will be directly transmitted to the bullseye bearings, which will lead to accelerated wear and shortened service life of the bullseye bearings. Utility Model Content

[0004] In view of this, the present invention provides a ring track conveying device, which aims to solve the problem that in the existing ring track conveying device, the slider does not have a buffer structure, so when the slider is carrying heavy objects, if it is subjected to instantaneous impact, the load will be directly transmitted to the bullseye bearing, which will lead to accelerated wear and shortened service life of the bullseye bearing.

[0005] To solve the above-mentioned technical problems, this utility model provides a ring track conveying device, including a guide rail structure and a slide table. The slide table is slidably engaged with the guide rail structure. A bullseye bearing is provided at the bottom of the slide table, and the bullseye bearing abuts against the upper wall of the guide rail structure. A buffer assembly is also provided at the bottom of the slide table. The buffer assembly includes an elastic element, which is disposed between the bullseye bearing and the slide table. When the slide table is under load, it can transmit pressure to the elastic element, so as to compress the elastic element to achieve pressure buffering on the bullseye bearing.

[0006] Furthermore, the buffer assembly also includes a conductive part, and the slide has a cavity that extends vertically and penetrates through its bottom, and the elastic element is disposed in the cavity; the upper end of the conductive part slides vertically into the cavity, the upper end of the conductive part abuts against the lower end of the elastic element, and the lower end of the conductive part is connected to the bullseye bearing.

[0007] Furthermore, the lower opening of the cavity extends inward to form a protrusion, and the upper end of the conductive part is provided with a limiting ring. The limiting ring slides vertically with the cavity, and the outer edge of the limiting ring overlaps on the protrusion; the elastic element is provided at the upper end of the limiting ring.

[0008] Furthermore, the elastic element is a spring.

[0009] Furthermore, a rubber rod is inserted through the center of the spring, and the rubber rod is fixedly connected to the upper end of the limiting ring.

[0010] Furthermore, a slot is provided on the upper wall of the slide, the slot is connected to the cavity, and a sealing block is detachably installed in the slot by screws.

[0011] Furthermore, the lower end of the sealing block is provided with a limiting block, and the lower wall surface of the limiting block is provided with a limiting groove corresponding to the rubber rod.

[0012] Furthermore, the bullseye bearing is detachably connected to the conductive part.

[0013] Furthermore, two rotating rods are spaced apart and rotatably mounted on the bottom of the slide table, and a guide wheel is connected to the bottom of each rotating rod; the guide wheel and the rotating rod slide in a vertical manner, and both guide wheels are slidably adapted to the guide rail structure.

[0014] Furthermore, the guide wheel has a hollow structure, and the inner wall of the guide wheel has multiple sliding grooves in the vertical direction. The multiple sliding grooves are distributed in a ring. The circumferential surface of the lower end of the rotating rod has multiple sliders distributed in a ring, and each slider is slidably adapted to each sliding groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: When the conveying device of this utility model is in use, the slide is subjected to the gravitational load of the material when the material is placed on it. This load is directly transmitted to the elastic element located between the bullseye bearing and the slide. The elastic element undergoes compression deformation under the load. During the deformation process, the elastic element absorbs part of the impact force generated by the load, preventing the load from being directly transmitted to the bullseye bearing without buffering. Thus, through the cooperation of the buffer components, the impact received by the bullseye bearing is reduced when the slide is subjected to gravitational load, which significantly extends the service life of the bullseye bearing and reduces the equipment maintenance and replacement costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the bottom structure of the slide table in an embodiment; Figure 3 This is a cross-sectional view of the internal structure of the buffer component in an embodiment; Figure 4 For the purposes of this embodiment Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0017] Numbering in each attached figure: 100. Guide rail structure; 200. Slide table; 201. Rotating rod; 202. Slider; 300. Guide wheel; 301. Slide groove; 400. Bullseye bearing; 401. Threaded locking part; 500. Buffer assembly; 501. Cavity; 502. Spring; 503. Rubber rod; 504. Limiting ring; 505. Conducting part; 600. Sealing block; 601. Limiting block; 602. Limiting groove. Detailed Implementation

[0018] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0019] In the description of this utility model, it should be understood that the terms "width", "upper", "lower", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through other features. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] Example 1 Please refer to Figures 1-4 This utility model provides a ring track conveying device.

[0023] Reference Figure 1 and Figure 2The conveying device includes a guide rail structure 100 and a slide table 200. The guide rail structure 100 is a closed ring shape, providing a path for the slide table 200 to slide continuously. The slide table 200 is a plate-shaped structure adapted to carry materials and can move smoothly along the extension direction of the guide rail structure 100. The slide table 200 slides in conjunction with the guide rail structure 100. At least four bullseye bearings 400 are arranged in a rectangular array at the bottom of the slide table 200 to ensure stable contact with the upper wall of the guide rail structure 100. The balls of the bullseye bearings 400 abut against the upper wall of the guide rail structure 100. A buffer assembly 500 is also provided at the bottom of the slide table 200, corresponding to the position of each bullseye bearing 400. The number of buffer assemblies 500 corresponds to the number of bullseye bearings 400. Specifically, the buffer assembly 500 includes an elastic element disposed between the bullseye bearing 400 and the slide 200. When the slide 200 is under load, it can transmit pressure to the elastic element to compress the elastic element and achieve pressure buffering on the bullseye bearing 400.

[0024] When material is placed on the slide table 200, the slide table 200 is subjected to the gravitational load of the material. This load is directly transmitted to the elastic element located between the bullseye bearing 400 and the slide table 200. The elastic element undergoes compression deformation under the load. During the deformation process, the elastic element absorbs part of the impact force generated by the load, preventing the load from being directly transmitted to the bullseye bearing 400 without buffering. Thus, when the slide table 200 is subjected to gravitational load, the impact received by the bullseye bearing 400 is reduced, significantly extending the service life of the bullseye bearing 400 and reducing equipment maintenance and replacement costs.

[0025] Reference Figure 2 , Figure 3 and Figure 4 The buffer assembly 500 also includes a conductive part 505; Specifically, a cavity 501 is provided at the bottom of the slide table 200 corresponding to the position of the bullseye bearing 400. The cavity 501 extends vertically and penetrates the bottom of the slide table 200. The elastic element is disposed in the cavity 501. The transmission part 505 has a columnar structure. The upper end of the transmission part 505 can slide into the cavity 501 along the vertical direction. The upper end face of the transmission part 505 is in close contact with the lower end of the elastic element. The lower end of the transmission part 505 is connected to the bullseye bearing 400 to ensure the continuity of load transmission.

[0026] When the slide 200 is loaded with material, it first descends. During this process, the upper end of the transmission part 505 moves upward relative to the inside of the cavity 501, causing the elastic element to undergo compression deformation due to the squeezing force between the slide 200 and the transmission part 505, thereby continuously absorbing the impact force of the load and preventing the load from acting directly on the bullseye bearing 400. Subsequently, the elastic element transmits the reduced load to the upper end of the transmission part 505 that it abuts against, while the lower end of the transmission part 505 smoothly transmits the load to the bullseye bearing 400.

[0027] Reference Figure 2 , Figure 3 and Figure 4 At the lower opening of the cavity 501, an annular protrusion extends inward along the inner wall of the opening. A limiting ring 504 is fixedly installed at the upper end of the conductive part 505. The limiting ring 504 slides vertically with the cavity 501, and the outer edge of the limiting ring 504 overlaps the protrusion. Specifically, the outer diameter of the limiting ring 504 is slightly smaller than the inner diameter of the cavity 501 to ensure that the limiting ring 504 can slide smoothly vertically within the cavity 501. At the same time, the outer edge size of the limiting ring 504 is larger than the size of the lower opening of the cavity 501, so that the outer edge of the limiting ring 504 can overlap the protrusion at the lower end of the cavity 501, forming a vertical limit on the conductive part 505. An elastic element is provided at the upper end of the limiting ring 504. The lower end of the elastic element abuts tightly against the upper end face of the limiting ring 504, and the upper end abuts against the top of the cavity 501.

[0028] Reference Figure 3 and Figure 4 The bullseye bearing 400 and the transmission part 505 are detachably connected. Specifically, the upper end of the bullseye bearing 400 is coaxially provided with a threaded locking part 401, and the lower end of the transmission part 505 is provided with a threaded hole along the vertical coaxial direction. The threaded locking part 401 is threaded into the threaded hole to realize the detachable connection between the bullseye bearing 400 and the transmission part 505, which facilitates the disassembly, maintenance or replacement of the bullseye bearing 400 in the future.

[0029] Reference Figures 1-4 The slide table 200 has two rotating rods 201 spaced apart at the bottom. The two rotating rods 201 are rotatably mounted by bearings, and each rotating rod 201 is connected to a guide wheel 300 at the bottom. Both guide wheels 300 are slidably adapted to the guide rail structure 100.

[0030] The guide rail structure 100 has a protrusion in the guide groove, and the guide wheel 300 has a recess on its circumferential surface that fits into the protrusion. The guide wheel 300 can rotate stably and slide inside the guide rail structure 100 by cooperating with the protrusion of the guide rail structure 100 through its recess.

[0031] The guide wheel 300 and the rotating rod 201 slide vertically. Since the guide wheel 300 can only rotate axially and slide horizontally in the guide rail structure 100, but cannot slide up and down, and the slide table 200 will descend when it is under pressure, the vertical sliding engagement between the rotating rod 201 and the guide wheel 300 causes the slide table 200 to drive the rotating rod 201 to descend when it is under pressure, while the height of the guide wheel 300 remains unchanged.

[0032] Reference Figure 2 and Figure 3 The guide wheel 300 has a hollow structure. The hollow inner wall of the guide wheel 300 has multiple grooves 301 vertically arranged in a circular array. On the lower circumferential surface of the rotating rod 201, multiple sliders 202 are arranged in a circular array along the circumference. The number of sliders 202 is the same as the number of grooves 301. The shape of the sliders 202 is adapted to the cross-sectional shape of the grooves 301. The size of the sliders 202 is slightly smaller than the size of the grooves 301 to ensure that the sliders 202 can slide smoothly in the grooves 301.

[0033] When the slide table 200 is pressed and drives the rotating rod 201 to move downward, the slider 202 at the lower end of the rotating rod 201 slides downward along the groove 301, while the height of the guide wheel 300 remains unchanged. The height of the groove 301 can be adjusted according to the material quality of the elastic element. When the slider 202 slides to the bottom of the groove 301, the slide table 200 stops moving downward to prevent the elastic element from being damaged by excessive pressure.

[0034] Reference Figure 2 , Figure 3 and Figure 4 The elastic element is spring 502. The selection of spring 502 must be adapted to the load-bearing requirements of slide table 200 to ensure that spring 502 can generate effective compression deformation under normal load and has sufficient elastic restoring force. Spring 502 is placed in cavity 501 of slide table 200. The lower end of spring 502 is in close contact with the limiting ring 504 at the upper end of the transmission part 505, and the upper end of spring 502 is in contact with the top of cavity 501 or subsequent sealing structure. In its natural state, spring 502 can support the weight of transmission part 505 and bullseye bearing 400, so that bullseye bearing 400 maintains stable contact with the upper wall of guide rail structure 100. Spring 502 has good elastic deformation ability and fatigue resistance, can adapt to multiple load impacts, and can still maintain stable buffering performance after long-term use, effectively extending the service life of buffer assembly 500.

[0035] Example 2 The difference from Embodiment 1 lies in the specific structure of the elastic element.

[0036] In this embodiment, refer to Figure 3 and Figure 4The elastic element is a rubber rod 503, and the bottom of the rubber rod 503 is fixed to the upper end of the limiting ring 504. The rubber rod 503 has a columnar structure, and its outer circumferential surface has a gap with the inner wall of the cavity 501 to provide sufficient deformation space when the rubber rod 503 is compressed. The rubber rod 503 has excellent shock absorption and buffering performance, especially for absorbing high-frequency impact loads, which can further reduce the instantaneous impact force on the bullseye bearing 400 and reduce wear; and it will not have rigid collisions with the cavity 501 and the limiting ring 504 during operation, resulting in lower operating noise.

[0037] Example 3 This embodiment is a preferred embodiment; the difference between this embodiment and Embodiment 1 and Embodiment 2 is that the elastic element uses both spring 502 and rubber rod 503.

[0038] In this embodiment, refer to Figure 3 and Figure 4 A rubber rod 503 is inserted through the center of the spring 502, and the rubber rod 503 is fixedly connected to the upper end of the limiting ring 504, specifically by hot melt adhesive. The upper and lower ends of the spring 502 abut against the inner wall of the cavity 501 and the upper end of the limiting ring 504, respectively. Through the synchronous cooperation of the spring 502 and the rubber rod 503, the cushioning performance is further improved.

[0039] In this embodiment, refer to Figure 3 and Figure 4 The upper wall of the slide table 200 has a slot that connects to the cavity 501. A sealing block 600 is detachably installed in the slot using screws. The upper end of the spring 502 abuts against the lower end of the sealing block 600. Specifically, the cross-section of the sealing block 600 is adapted to the slot, and the surface of the sealing block 600 has multiple through holes arranged in a ring. The lower inner wall of the slot has threaded holes corresponding to the positions of the through holes. The threaded holes are coaxial with the through holes. When the sealing block 600 is placed in the slot, the screw is passed through the through hole and screwed into the threaded hole to seal the sealing block 600. The detachable design of the sealing block 600 exposes the internal structure of the cavity 501. If the rubber gasket and spring 502 are damaged, the sealing block 600 can be removed to replace the rubber gasket and spring 502, facilitating future maintenance.

[0040] In this embodiment, refer to Figure 3 and Figure 4 The lower end of the sealing block 600 is provided with a limiting block 601. The lower wall of the limiting block 601 is provided with a limiting groove 602 that is coaxial with the rubber rod 503. When the slide table 200 is pressed down until the upper end of the rubber rod 503 abuts against the inner wall of the limiting groove 602, the rubber rod 503 begins to deform under pressure. The limiting groove 602 can block the rubber rod 503, prevent the rubber rod 503 from bending under pressure, and improve stability.

[0041] It should be noted that the mating parts of the guide wheel 300 and the guide rail structure 100 can be compared with the contents of CN216888644U; and the slide table 200 is controlled by the drive mechanism in the conveying device to slide along the guide rail structure 100. This drive mechanism is a conventional technical means in the field of circular conveying, and will not be described in detail here.

[0042] In summary, the working principle of this utility model is as follows: When the slide table 200 is loaded with material, the slide table 200 is driven by the load to move the rotating rod 201 down together. The slider 202 on the surface of the rotating rod 201 slides vertically downward along the slide groove 301. During this process, since the balls of the bullseye bearing 400 abut against the surface of the guide rail structure 100, the bullseye bearing 400 and the transmission part 505 themselves cannot move down. Therefore, during the downward movement of the slide table 200, the spring 502 and the rubber rod 503 in the cavity 501 undergo compression deformation under the load. During the deformation process, the elastic element absorbs part of the impact force generated by the load, preventing the load from being directly transmitted to the bullseye bearing 400 without buffering. This significantly extends the service life of the bullseye bearing 400 and reduces the equipment maintenance and replacement costs.

[0043] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A ring track conveying device, comprising a guide rail structure (100) and a slide (200), wherein the slide (200) is slidably engaged with the guide rail structure (100), and a bullseye bearing (400) is provided at the bottom of the slide (200), the bullseye bearing (400) abutting against the upper wall surface of the guide rail structure (100), characterized in that: The bottom of the slide (200) is also provided with a buffer assembly (500), which includes an elastic element. The elastic element is disposed between the bullseye bearing (400) and the slide (200). When the slide (200) is under load, it can transmit pressure to the elastic element so that the elastic element is compressed to achieve pressure buffering on the bullseye bearing (400).

2. The circular track conveying device as described in claim 1, characterized in that: The buffer assembly (500) further includes a conductive part (505). The slide (200) has a cavity (501) that extends vertically and penetrates its bottom. The elastic element is disposed in the cavity (501). The upper end of the conductive part (505) slides vertically into the cavity (501). The upper end of the conductive part (505) abuts against the lower end of the elastic element. The lower end of the conductive part (505) is connected to the bullseye bearing (400).

3. The circular track conveying device as described in claim 2, characterized in that: The cavity (501) extends inward at the lower opening to form a protrusion, and the upper end of the conductive part (505) is provided with a limiting ring (504). The limiting ring (504) and the cavity (501) slide vertically to fit together, and the outer edge of the limiting ring (504) overlaps on the protrusion; the elastic element is provided at the upper end of the limiting ring (504).

4. The circular track conveying device as described in claim 3, characterized in that: The elastic element is a spring (502).

5. The annular track conveying device as described in claim 4, characterized in that: A rubber rod (503) is inserted through the center of the spring (502), and the rubber rod (503) is fixedly connected to the upper end of the limiting ring (504).

6. The annular track conveying device as described in claim 5, characterized in that: The upper wall of the slide (200) is provided with a slot, which is connected to the cavity (501). A sealing block (600) is detachably installed in the slot by screws.

7. A ring track conveying device as described in claim 6, characterized in that: The lower end of the sealing block (600) is provided with a limiting block (601), and the lower wall surface of the limiting block (601) is provided with a limiting groove (602) that is coaxial with the rubber rod (503).

8. The circular track conveying device as described in claim 2, characterized in that: The bullseye bearing (400) is detachably connected to the conductive part (505).

9. A circular track conveying device as described in claim 1, characterized in that: The slide (200) has two rotating rods (201) spaced apart and rotatably mounted on its bottom. Each rotating rod (201) is connected to a guide wheel (300) at its bottom. The guide wheel (300) and the rotating rod (201) slide in a vertical direction, and both guide wheels (300) slide in a sliding fit with the guide rail structure (100).

10. A circular track conveying device as described in claim 9, characterized in that: The guide wheel (300) has a hollow structure. The inner wall of the guide wheel (300) is provided with multiple sliding grooves (301) in the vertical direction. The multiple sliding grooves (301) are arranged in a ring. The circumferential surface of the lower end of the rotating rod (201) is provided with multiple sliders (202) in a ring. Each slider (202) is slidably adapted to each sliding groove (301).

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