A type of shaftless fluid strip

Abstract

This utility model relates to the field of flow rail technology and discloses a shaftless flow rail. The shaftless flow rail includes a frame, inside which rollers are arranged, and a central shaft is fixedly connected to the outer wall of each roller. A connecting assembly is also arranged inside the frame. In this shaftless flow rail, lubricating oil flows along the central shaft to the steel balls, and the lubricating oil is periodically released to avoid excessive waste, prevent dry friction, reduce wear, and reduce dry friction noise between the central shaft and the steel balls. This also reduces structural resonance caused by shaking and collision. The steel balls press against the central shaft, achieving automatic centering and limiting of the central shaft, reducing shaking caused by eccentric rotation, thereby reducing structural resonance and noise sources. The lubricating oil promotes the smooth sliding of the slider, reduces wear, avoids jamming or dry blockage, and suppresses the transmission path of structural noise between sliding components, making the overall system operation sound smoother and softer.

Description

Technical Field

[0001] This utility model relates to the field of flow strip technology, specifically to a shaftless flow strip. Background Technology

[0002] When businesses need to sort and deliver goods, they need to place different goods in different conveyor lanes. In order to reduce the friction of goods in the conveyor lanes, flow rails are installed under the conveyor lanes. Currently, due to structural reasons, the flow rails used have dual noise between the rollers and the roller shafts, and between the roller shafts and the frame.

[0003] According to a public announcement of a shaftless ultra-quiet flow bar (announcement number: CN210883816U), the above application includes a frame and rollers. The frame includes a rectangular groove one and a rectangular groove two. The upper two ends of the rectangular groove one are respectively perpendicularly fixed to the side of the groove of the rectangular groove two. The bottom of the groove of the rectangular groove two is provided with an opening, and the central axis of the roller is extended to replace the roller shaft, so that the central axis of the roller shaft is directly connected to the frame, thereby reducing the noise problem caused by friction between the roller shaft and the frame and friction between the roller shaft and the roller.

[0004] However, in actual use, the aforementioned flow bar experiences hard friction between the roller central shaft and the frame, resulting in a sharp braking friction sound during rotation, which is especially severe at higher speeds or when the load changes. In view of this, we propose a shaftless flow bar. Utility Model Content

[0005] The purpose of this invention is to provide an axial-free flow strip to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shaftless flow bar, comprising a frame, rollers disposed inside the frame, a central shaft fixedly connected to the outer wall of the rollers, and a connecting assembly disposed inside the frame, the connecting assembly comprising:

[0007] A slider, wherein a pusher is fixedly connected to the outer wall of the slider;

[0008] A fixed block, wherein a guide cylinder is fixedly connected to the inner wall of the fixed block, and the inner wall of the guide cylinder is provided with a bidirectional threaded groove;

[0009] A clamping block, wherein a steel ball is movably connected to the inner wall of the clamping block, and a cavity is provided on the inner wall of the clamping block, wherein a through groove is provided at the bottom of the cavity;

[0010] A push rod, wherein a baffle is fixedly connected to the end face of the push rod, and a push plate is fixedly connected to the end of the push rod away from the baffle.

[0011] A limiting plate, wherein a limiting ring is fixedly connected to the side wall of the limiting plate, and bolts are sleeved on the side wall of the limiting plate.

[0012] Preferably, the outer wall of the central shaft is provided with a sliding groove, which is slidably connected to the slider, and the slider and the push block slide within the sliding groove.

[0013] Preferably, the fixing block is inserted into the inner wall of the frame, and the bidirectional threaded groove is slidably connected to the slider, guiding the slider.

[0014] Preferably, the clamping block is inserted into the inner wall of the fixing block, and the steel ball is movably connected to the outer wall of the central shaft.

[0015] Preferably, the push rod is sleeved with the outer wall of the clamping block, the shield is movably connected with the through groove, and a spring is sleeved on the side wall of the push rod. One end of the spring abuts against the end face of the push plate, and the other end of the spring abuts against the outer wall of the clamping block.

[0016] Preferably, the limiting ring has a right-angled trapezoidal cross-section, the inner wall of the limiting ring is movably connected to the clamping block, the outer wall of the limiting ring is movably connected to the inner wall of the fixing block, and the bolt is threadedly connected to the frame.

[0017] Preferably, a guide ring is fixedly connected to the outer wall of the central shaft, and the guide ring is movably connected to the through groove.

[0018] Compared with the prior art, this utility model provides an axial-free fluid strip, which has the following beneficial effects:

[0019] 1. This shaftless flow bar, through a set connecting component, allows lubricating oil to flow along the central axis to the steel balls. Regularly releasing the lubricating oil avoids excessive waste, prevents dry friction, reduces wear, and lubricates to reduce dry friction noise between the central axis and the steel balls. This also reduces structural resonance caused by shaking and collisions. The steel balls press against the central axis, achieving automatic centering and limiting of the central axis, reducing shaking caused by eccentric rotation, thereby reducing structural resonance and noise sources. The lubricating oil promotes smooth sliding of the slider, reduces wear, prevents jamming or dryness, and suppresses the transmission path of structural noise between sliding parts, making the overall system's operating sound smoother and softer.

[0020] 2. This shaftless flow bar, through the set guide ring, allows the lubricating oil to adhere to the surface of the rotating guide ring and be drawn out as an oil film, thereby stably replenishing the lubricating oil, maintaining a stable and continuous lubricating oil film, and reducing friction and wear. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0022] Figure 2This is a schematic diagram of the cross-sectional structure of the frame of this utility model;

[0023] Figure 3 This is a schematic cross-sectional view of the connecting component of this utility model;

[0024] Figure 4 This utility model Figure 3 Schematic diagram of the structure of region A in the middle.

[0025] In the diagram: 1. Frame; 2. Roller; 3. Central shaft; 4. Connecting assembly; 401. Slider; 402. Push block; 403. Fixing block; 404. Guide cylinder; 405. Bidirectional threaded groove; 406. Clamping block; 407. Steel ball; 408. Cavity; 409. Through groove; 410. Push rod; 411. Baffle frame; 412. Push plate; 413. Limiting plate; 414. Limiting ring; 415. Bolt; 5. Spring; 6. Guide ring. Detailed Implementation

[0026] like Figures 1-4 As shown, this utility model provides a technical solution: a shaftless flow bar, including a frame 1, a roller 2 is provided inside the frame 1, a central shaft 3 is fixedly connected to the outer wall of the roller 2, and a connecting assembly 4 is provided inside the frame 1. The connecting assembly 4 includes a slider 401, a push block 402, a fixing block 403, a guide cylinder 404, a bidirectional threaded groove 405, a clamping block 406, a steel ball 407, a cavity 408, a through groove 409, a push rod 410, a shielding frame 411, a push plate 412, a limiting plate 413, a limiting ring 414, and a bolt 415.

[0027] In one embodiment of this utility model, a pusher block 402 is fixedly connected to the outer wall of the slider 401, and a groove is provided on the outer wall of the central shaft 3. The groove is slidably connected to the slider 401, and the slider 401 and the pusher block 402 slide in the groove.

[0028] The fixing block 403 is inserted into the inner wall of the frame 1. The inner wall of the fixing block 403 is fixedly connected to the guide cylinder 404. The inner wall of the guide cylinder 404 is provided with a bidirectional threaded groove 405. The bidirectional threaded groove 405 is slidably connected to the slider 401 and guides the slider 401.

[0029] The clamping block 406 is inserted into the inner wall of the fixing block 403. The inner wall of the clamping block 406 is movably connected with a steel ball 407. The inner wall of the clamping block 406 is provided with a cavity 408. The bottom of the cavity 408 is provided with a through groove 409. The steel ball 407 is movably connected to the outer wall of the central shaft 3.

[0030] The push rod 410 is sleeved with the outer wall of the clamping block 406. A baffle 411 is fixedly connected to the end face of the push rod 410. A push plate 412 is fixedly connected to the end of the push rod 410 away from the baffle 411. The baffle 411 is movably connected to the through groove 409. A spring 5 is sleeved on the side wall of the push rod 410. One end of the spring 5 abuts against the end face of the push plate 412, and the other end of the spring 5 abuts against the outer wall of the clamping block 406.

[0031] A limiting ring 414 is fixedly connected to the side wall of the limiting plate 413. The cross-section of the limiting ring 414 is set in a right trapezoid. The inner wall of the limiting ring 414 is movably connected to the clamping block 406, and the outer wall of the limiting ring 414 is movably connected to the inner wall of the fixing block 403. A bolt 415 is sleeved on the side wall of the limiting plate 413, and the bolt 415 is threadedly connected to the frame 1.

[0032] Rotating bolt 415 causes the limiting plate 413 and limiting ring 414 to move toward roller 2. The limiting ring 414 pushes clamping block 406, causing steel ball 407 to move toward central axis 3. Steel ball 407 abuts against central axis 3, achieving automatic centering and limiting of central axis 3, reducing sway caused by eccentric rotation, and thus reducing structural resonance and noise sources.

[0033] The rotation of roller 2 and central shaft 3 drives the slider 401 and push block 402 to rotate. The slider 401 is guided by the bidirectional threaded groove 405, causing the slider 401 and push block 402 to slide laterally back and forth in the groove. When the push block 402 slides to the end away from roller 2, the push block 402 pushes the push plate 412, push rod 410 and shield 411, causing the through groove 409 to open, allowing the lubricating oil stored inside the cavity 408 to flow out. A portion of the lubricating oil flows along the central shaft 3 to the steel ball 407. The lubricating oil is released periodically to avoid excessive waste, prevent dry friction, reduce wear, and reduce the dry friction noise between the central shaft 3 and the steel ball 407, thus reducing structural resonance caused by shaking and collision.

[0034] Another portion of the lubricating oil flows to the slide groove to lubricate the sliding of the slider 401 within the slide groove. The lubricating oil is thrown by the rotating central shaft 3 through centrifugal force to the guide cylinder 404 and the bidirectional threaded slide groove 405 to lubricate the sliding of the slider 401 within the bidirectional threaded slide groove 405, thereby improving the sliding smoothness of the slider 401, reducing wear, preventing jamming or dryness, suppressing the transmission path of structural noise between sliding parts, and making the overall system operation sound smoother and softer.

[0035] After the push block 402 cancels the force applied to the push plate 412, the spring 5 pushes the push plate 412, the push rod 410 and the blocking frame 411, so that the blocking frame 411 blocks the through groove 409 again, and the lubricating oil can no longer be added to the transmission part.

[0036] In addition, a guide ring 6 is fixedly connected to the outer wall of the central shaft 3. The guide ring 6 is movably connected to the through groove 409 and the shield 411. After the shield 411 is opened, the guide ring 6 directly contacts the lubricating oil inside the cavity 408, carries the lubricating oil out, and diverts it to the steel ball 407 and the slider 401. The lubricating oil is viscous and does not easily drip directly like water. The lubricating oil adheres to the surface of the rotating guide ring 6 and is pulled out as an oil film, thereby stably replenishing the lubricating oil, maintaining a stable and continuous lubricating oil film, and reducing friction and wear.

[0037] In this utility model, during use, rotating the bolt 415 causes the limiting plate 413 and the limiting ring 414 to move towards the roller 2. The limiting ring 414 pushes the clamping block 406, causing the steel ball 407 to move towards the central shaft 3. The steel ball 407 abuts against the central shaft 3, achieving automatic centering and limiting of the central shaft 3, reducing the shaking caused by eccentric rotation. When the push block 402 slides to the end away from the roller 2, the push block 402 pushes the push plate 412, the push rod 410, and the shield 411, causing the through groove 409 to open, allowing the lubricating oil stored inside the cavity 408 to flow out. A portion of the lubricating oil flows along the central shaft 3 towards the steel ball 407. Regularly releasing the lubricating oil avoids excessive waste, prevents dry friction, reduces wear, and lubricates to reduce the dry friction noise between the central shaft 3 and the steel ball 407.

[0038] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An axis-free strip, comprising a rack (1), the inside of the rack (1) is provided with a roller (2), the outer wall of the roller (2) is fixedly connected with a center shaft (3), characterized in that: The rack (1) is internally provided with a connecting component (4), the connecting component (4) including: A slider (401) has a push block (402) fixedly connected to its outer wall. A fixing block (403) is fixedly connected to a guide cylinder (404) on its inner wall, and a bidirectional threaded groove (405) is provided on the inner wall of the guide cylinder (404). A clamping block (406) is provided with a steel ball (407) movably connected to its inner wall. A cavity (408) is provided on the inner wall of the clamping block (406), and a through groove (409) is provided at the bottom of the cavity (408). A push rod (410) is fixedly connected to a shielding frame (411) at its end face, and a push plate (412) is fixedly connected to the end of the push rod (410) away from the shielding frame (411). A limiting plate (413) is provided, with a limiting ring (414) fixedly connected to the side wall of the limiting plate (413), and bolts (415) are sleeved on the side wall of the limiting plate (413).

2. A shaftless baffle strip according to claim 1, wherein: The outer wall of the central shaft (3) is provided with a sliding groove, which is slidably connected to the slider (401).

3. The shaftless flow strip according to claim 1, characterized in that: The fixing block (403) is inserted into the inner wall of the frame (1), and the bidirectional threaded groove (405) is slidably connected to the slider (401).

4. The shaftless flow strip according to claim 1, characterized in that: The clamping block (406) is inserted into the inner wall of the fixing block (403), and the steel ball (407) is movably connected to the outer wall of the central shaft (3).

5. The shaftless flow strip according to claim 1, characterized in that: The push rod (410) is sleeved with the outer wall of the clamping block (406), the shield (411) is movably connected with the through groove (409), and a spring (5) is sleeved on the side wall of the push rod (410). One end of the spring (5) abuts against the end face of the push plate (412), and the other end of the spring (5) abuts against the outer wall of the clamping block (406).

6. The shaftless flow strip according to claim 1, characterized in that: The cross-section of the limiting ring (414) is set in a right trapezoid. The inner wall of the limiting ring (414) is movably connected to the clamping block (406). The outer wall of the limiting ring (414) is movably connected to the inner wall of the fixing block (403). The bolt (415) is threadedly connected to the frame (1).

7. The shaftless flow strip according to claim 1, characterized in that: A guide ring (6) is fixedly connected to the outer wall of the central shaft (3), and the guide ring (6) is movably connected to the through groove (409).

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