Improved feeding belt return bearing mechanism

Abstract

An improved feeding belt return bearing mechanism comprises a support body, a feeding belt bearing wheel and a feeding belt side wheel set, the feeding belt bearing wheel is installed at the upper end of a jacking arm through a bearing wheel installation base and is driven by a lead screw to ascend and descend along with the upper end of the jacking arm, and the bearing wheel installation base comprises a connecting plate, a hinge lug and a supporting plate. The connecting plate and the horizontal grooved rail are arranged in parallel; the hinge lug seat is fixedly connected to the middle position of the lower part of the connecting plate piece, and the bearing wheel mounting seat is hinged to the upper end of the jacking arm through the hinge lug seat; the two sets of supporting plates are fixedly connected to the two ends of the connecting plate respectively, and each supporting plate is a U-shaped plate composed of a vertical section and a horizontal section. According to the utility model, material slag accumulation between the feeding belt bearing wheel and the horizontal grooved rail is reduced, and meanwhile, the material slag can be directly collected and is convenient to clean; the structure of the lead screw is optimized, linkage of the jacking arm and the movable base is achieved, the best matching performance for the bending degree of the feeding belt is achieved, and the assembling efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of material conveying equipment technology, and in particular to an improved feeder belt return support mechanism. Background Technology

[0002] Existing long-distance feeder belts are prone to sagging during the return journey, thus requiring a support mechanism. Previously, the applicant disclosed a feeder belt return support mechanism in Chinese utility model patent CN202420841264.9, entitled "A Feeder Belt Return Support Mechanism." This mechanism includes a support body, feeder belt support wheels, and feeder belt side wheel assemblies. The support body includes a horizontal groove rail, a lead screw, and a lifting arm. The lead screw is rotatably mounted within the horizontal groove rail and meshes with the bottom end of the lifting arm, driving the lifting arm to raise and lower its upper end. The feeder belt support wheels are rotatably mounted on the upper end of the lifting arm and, in operation, contact the surface of the returning feeder belt, shaping it into an arc with lowered edges and a higher center. This feeder belt return support mechanism has achieved good results in practical use. However, the inventors discovered several technical problems that needed improvement in practice: 1. The feed belt return support mechanism causes the feed belt to bend into an arc shape during the return stroke, which can cause unstable material residue adhering to the surface of the feed belt to fall off and reduce the adhesion of material residue to the surface of the feed belt. However, the material residue will accumulate on the horizontal groove rail, especially when it accumulates on the horizontal groove rail under the feed belt support wheel, which affects the rotation of the feed belt support wheel and is relatively difficult to clean; 2. When assembling the lifting arm screw engagement seat, screw, and movable base of the feed belt side wheel assembly of this mechanism, it is difficult to control the stroke ratio of the two. Assembly relies on experience, which is too inefficient.

[0003] Therefore, developing an improved feeder return support mechanism is not only of urgent research value, but also has good economic benefits and industrial application potential. This is the driving force and foundation for the completion of this utility model. Utility Model Content

[0004] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0005] Specifically, the technical problem to be solved by this utility model is to provide an improved feed belt return support mechanism to solve the technical problems of existing feed belt return support mechanisms, which are prone to accumulating on the horizontal groove rail under the feed belt support wheel, affecting the work, and are difficult to clean, as well as the problem of poor control of the stroke ratio of the screw engagement seat of the lifting arm, the screw, and the movable base of the feed belt side wheel assembly.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] An improved feed belt return support mechanism includes a support body, feed belt support rollers, and feed belt side roller assembly.

[0008] The main body of the support includes a horizontal groove rail, a lead screw, and a lifting arm. The lead screw is rotatably installed in the horizontal groove rail and meshes with the bottom end of the lifting arm for transmission.

[0009] The feed belt support roller is mounted on the upper end of the lifting arm using a support roller mounting seat, and rises and falls with the upper end of the lifting arm under the drive of the lead screw.

[0010] The feed belt side wheel assembly is configured as two sets, both of which are engaged and linked to the lead screw via a movable base, thereby enabling the lifting and lowering of the movable base and the feed belt support wheel to be linked.

[0011] The significant difference between this utility model and the prior art is that:

[0012] The support wheel mounting base includes a connecting plate, a hinged lug, and a supporting plate, wherein the connecting plate is arranged parallel to the horizontal groove rail;

[0013] The hinge lug is fixed to the lower middle position of the connecting plate, and the support wheel mounting seat is hinged to the upper end of the lifting arm using the hinge lug.

[0014] There are two sets of support plates, which are respectively fixed to both ends of the connecting plate. The support plate is a U-shaped plate composed of a vertical section and a horizontal section. The bottom end of the vertical section is connected to the connecting plate and extends vertically along the vertical projection direction of the horizontal groove. One end of the horizontal section is connected to the top end of the vertical section and extends outward. The feeding belt support wheel is rotatably installed at the end of the horizontal section.

[0015] As an improvement, the connecting plate and the hinge lug are welded together.

[0016] As an improvement, the connecting plate and the supporting plate are integrally stamped and bent.

[0017] As an improvement, the feed belt support roller is provided with an axle, and a U-shaped groove is opened at the end of the horizontal section. The two ends of the axle are respectively installed in the U-shaped groove and fixed with nuts and washers.

[0018] As an improvement, the main body of the support also includes a dust collection device, which includes a dust collection bag and a dust collection bag support rod.

[0019] The dust collection bag support rods are in two sets, respectively installed on the horizontal section of the support plate and extending in the horizontal direction. In the vertical projection direction, one end of the dust collection bag support rod extends at least beyond the outer edge of the feed belt support wheel, and the other end extends at least beyond the outer side of the horizontal groove rail.

[0020] The opening of the dust collection bag is detachably installed on the dust collection bag support rod.

[0021] As an improvement, the ends of the dust collection bag support rods are all provided with semi-circular arc-shaped bayonets, and the opening of the dust collection bag is provided with a retaining ring. During installation, the retaining ring is inserted into the bayonets to achieve a detachable connection between the two.

[0022] As an improvement, the dust bag support rods are installed at both ends of the wheel axle.

[0023] Furthermore, for greater convenience, the dust collection bag can be divided into two parts. The upper part is the bag opening connected to the dust collection bag support rod, mainly serving as a dust collection and funnel. The lower part is the bag body that holds the material residue. The bag opening and bag body are detachably connected using Velcro-like fasteners, making it easy to slip the dust collection bag onto the horizontal track. In actual use, only the bag body needs to be replaced.

[0024] As an improvement, the lead screw is provided with different threaded sections, including a first threaded section that engages with the bottom end of the lifting arm and a second threaded section that engages with the movable base. The ratio of the thread pitch of the first threaded section to the thread pitch of the second threaded section is 6:1. That is, when the bottom end travel of the lifting arm is 6cm, the travel of the movable base is 1cm. This ratio was also the optimal ratio obtained by the inventors through repeated experiments, enabling the two to work together and providing optimal matching for the curvature of the feed belt.

[0025] As an improvement, the first threaded section uses a trapezoidal thread, while the second threaded section uses a fine-pitch standard thread.

[0026] Furthermore, the remaining structures have already been disclosed in the Chinese utility model patent with patent number CN202420841264.9 and patent title "A Feeding Belt Return Support Mechanism", and will not be elaborated here.

[0027] After adopting the above technical solution, the beneficial effects of this utility model are:

[0028] This utility model improves and optimizes the structure of the support roller mounting base. Its support plate is a U-shaped plate composed of a vertical section and a horizontal section. The bottom end of the vertical section is connected to the connecting plate and extends vertically along the vertical projection direction of the horizontal channel rail. One end of the horizontal section is connected to the top end of the vertical section, and the end extends outward. The feed belt support roller is rotatably mounted at the end of the horizontal section. Based on this structural improvement, the feed belt support roller of this utility model is no longer directly above the horizontal channel rail, but forms an open structure. In actual use, most of the material residue falling from the feed belt due to contact with the feed belt support roller will not fall onto the horizontal channel rail. Therefore, no material accumulation will form between the feed belt support roller and the horizontal channel rail. Although material residue will inevitably fall onto the upper surface of the horizontal channel rail, it will not accumulate between the feed belt support roller and the horizontal channel rail as in traditional structures, making cleaning easier.

[0029] To reduce the workload of workers, this utility model is specially equipped with a dust collection device. The dust collection bag opening is opened by the dust collection bag support rod installed on the horizontal section of the support plate. In actual operation, most of the material residue will fall from near the feed belt support roller. Therefore, by setting up this dust collection device, the falling material residue can be collected directly to the greatest extent, reducing the amount of manual cleaning work in the later stage.

[0030] To facilitate control of the travel of the movable base and lifting arm during assembly, the inventors, through extensive and repeated experiments, redesigned the lead screw structure. The ratio of the thread pitch of the first threaded section to that of the second threaded section is 6:1. This ensures that when the bottom travel of the lifting arm is 6cm, the travel of the movable base is 1cm. This ratio, determined through repeated experiments, is the optimal proportion, enabling coordinated operation and providing best matching for the curvature of the feed belt. During assembly, direct assembly is possible, significantly improving assembly efficiency.

[0031] In summary, this invention reduces the accumulation of material residue between the feed belt support roller and the horizontal groove rail, while also allowing for direct collection of the residue for easy cleaning; the optimized screw structure enables the linkage between the lifting arm and the movable base, providing optimal matching for the curvature of the feed belt and greatly improving assembly efficiency. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the feed belt support roller of this utility model when it is in the low point state;

[0033] Figure 2 This is a schematic diagram of the structure of the feed belt support roller of this utility model when it is in the high point state;

[0034] Figure 3 This is a schematic diagram of the main structure of the supporting plate;

[0035] Figure 4 This is a side view of the supporting plate structure.

[0036] Figure 5 This is a schematic diagram showing the state of the support plate during processing;

[0037] Figure 6 This is a schematic diagram of the dust collection device;

[0038] Figure 7 This is a top view of the dust collection device.

[0039] Figure 8 This is a schematic diagram of the lead screw structure;

[0040] Figure 9 This is a structural schematic diagram of patent CN202420841264.9. Detailed Implementation

[0041] The present invention will be further described below with reference to specific embodiments. However, the uses and purposes of these exemplary embodiments are only for illustrating the present invention and do not constitute any limitation on the actual protection scope of the present invention, nor are they intended to limit the protection scope of the present invention to these embodiments.

[0042] like Figures 1-9As shown, an improved feed belt return support mechanism includes a support body 1, a feed belt support wheel 2, and a feed belt side wheel assembly 3. The support body 1 includes a horizontal groove rail 11, a lead screw 12, and a lifting arm 13. The lead screw 12 is rotatably mounted in the horizontal groove rail 11 and engages with the bottom end of the lifting arm 13 for transmission. The feed belt support wheel 2 is mounted on the upper end of the lifting arm using a support wheel mounting seat 4 and rises and falls with the upper end of the lifting arm under the drive of the lead screw 12. The feed belt side wheel assembly 3 is provided in two sets, both of which are engaged and linked to the lead screw 12 using a movable base 31, so that the lifting and lowering of the movable base 31 and the feed belt support wheel 2 are linked. Generally, a threaded seat is provided at the bottom end of the lifting arm 13, which meshes with the lead screw 12. Because the lifting arm 13 is arranged opposite to each other, the threads on the lead screw 12 that mesh with its corresponding threaded seat also adopt the opposite thread direction. Similarly, the threads that mesh with the movable base 31 of the oppositely arranged feed belt side wheel assembly 3 also adopt the opposite thread direction, so that when the lead screw rotates, the bottom end of the lifting arm 13 and the movable base 31 move synchronously towards or away from each other, realizing linkage. Since many structures (such as the installation method of the lead screw 12, the installation method of the lifting arm 13, etc.) have been disclosed in Chinese utility model patent with patent number CN202420841264.9 and patent name "A Feed Belt Return Support Mechanism", some details will not be repeated here. Those skilled in the art can refer to the technical documents of that patent. In this utility model, the inventor addresses the technical problem in the background art: existing feed belt return support mechanisms tend to accumulate on the horizontal groove rail under the feed belt support wheel, affecting work and being difficult to clean. The inventor has made structural improvements, as follows: the support wheel mounting base 4 includes a connecting plate 41, a hinge ear 42, and a support plate 43. The connecting plate 41 is arranged parallel to the horizontal groove rail 11.

[0043] The hinge lug 42 is fixed to the lower middle position of the connecting plate 41, and the support wheel mounting base 4 is hinged to the upper end of the lifting arm using the hinge lug 42.

[0044] There are two sets of support plates 43, which are respectively fixed to both ends of the connecting plate. The support plate is a U-shaped plate composed of a vertical section 431 and a horizontal section 432. The bottom end of the vertical section 431 is connected to the connecting plate and extends vertically along the vertical projection direction of the horizontal groove. One end of the horizontal section is connected to the top end of the vertical section and extends outward. The feeding belt support wheel is rotatably installed at the end of the horizontal section.

[0045] In this embodiment, to ensure quality stability, the connecting plate 41 and the hinge lug 42 are welded together. Figure 5As can be clearly seen, the connecting plate 41 and the supporting plate 43 are integrally stamped and bent. The supporting plate 43 can be formed by bending it vertically upwards along the marked line in the figure.

[0046] To facilitate the installation of the feed belt support roller, the feed belt support roller is equipped with an axle. A U-shaped groove 433 is opened at the end of the horizontal section. The two ends of the axle are respectively installed in the U-shaped groove 433 and fixed with nuts and washers. Because the feed belt provides a downward pressure, the axle will not fall out of the groove when the U-shaped groove 433 is installed. However, the U-shaped groove 433 structure makes it very convenient to replace the axle when it is not in operation, and also improves the convenience of assembly.

[0047] In this embodiment, the main body of the support also includes a dust collection device 5, which includes a dust collection bag 51 and a dust collection bag support rod 52. There are two sets of dust collection bag support rods 52, which are respectively installed on the horizontal section of the support plate 43 and extend along the horizontal direction. In the vertical projection direction, one end of the dust collection bag support rod extends at least beyond the outer edge of the feed belt support wheel, and the other end extends at least beyond the outer side of the horizontal groove rail. The bag opening of the dust collection bag is detachably installed on the dust collection bag support rod.

[0048] For easy assembly and disassembly, each end of the dust bag support rod 52 is provided with a semi-circular slot 521, and the opening of the dust bag is provided with a retaining ring 511. During installation, the retaining ring is engaged with the slot to achieve a detachable connection between the two. The dust bag support rod is installed at both ends of the wheel axle.

[0049] Furthermore, for greater convenience, the dust collection bag 51 can be divided into two parts. The upper part is the bag opening 512, which is connected to the dust collection bag support rod and mainly functions as a dust collection funnel. The lower part is the bag body 513, which holds the material residue. The bag opening and bag body are detachably connected using Velcro-like fasteners, making it easy to slip the dust collection bag onto the horizontal track. In actual use, only the bag body needs to be replaced.

[0050] To address the technical problem of poor control over the stroke ratio of the lead screw engagement seat, lead screw, and moving base of the feed belt side wheel assembly in the prior art, the lead screw 12 is provided with different threaded sections, including a first threaded section 121 that engages with the bottom end of the lifting arm and a second threaded section 122 that engages with the moving base. The ratio of the thread pitch of the first threaded section to the thread pitch of the second threaded section is 6:1. That is, when the bottom end stroke of the lifting arm is 6cm, the moving base stroke is 1cm. In this embodiment, the first threaded section adopts a trapezoidal thread. The parameter of the first threaded section 121 that engages with the bottom end of one lifting arm is Tr14×6(P3)RH-7e, and the parameter of the first threaded section that engages with the bottom end of the other lifting arm is Tr14×6(P3)LH-7e. The second threaded section adopts a fine-pitch ordinary thread. The parameter of the second threaded section that engages with one moving base is M12×1RH, and the parameter of the second threaded section that engages with the other moving base is M12×1RH. This point is also the optimal ratio that the inventors obtained through repeated experiments, which enables the two to work together and has the best matching with the curvature of the feed belt.

[0051] The structural devices described in the embodiments are well-known to those skilled in the art and will not be elaborated upon. It is believed that those skilled in the art can obtain them through searching and ultimately realize the technical solutions described in this utility model.

[0052] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. An improved feed belt return support mechanism, comprising a support body, feed belt support rollers, and feed belt side roller assembly. The main body of the support includes a horizontal groove rail, a lead screw, and a lifting arm. The lead screw is rotatably installed in the horizontal groove rail and meshes with the bottom end of the lifting arm for transmission. The feed belt support roller is mounted on the upper end of the lifting arm using a support roller mounting seat, and rises and falls with the upper end of the lifting arm under the drive of the lead screw. The feed belt side wheel assembly is configured as two sets, both of which are engaged and linked to the lead screw via a movable base, thereby enabling the lifting and lowering of the movable base and the feed belt support wheel to be linked. Its features are, The support wheel mounting base includes a connecting plate, a hinged lug, and a supporting plate, wherein the connecting plate is arranged parallel to the horizontal groove rail; The hinge lug is fixed to the lower middle position of the connecting plate, and the support wheel mounting seat is hinged to the upper end of the lifting arm using the hinge lug. There are two sets of support plates, which are respectively fixed to both ends of the connecting plate. The support plate is a U-shaped plate composed of a vertical section and a horizontal section. The bottom end of the vertical section is connected to the connecting plate and extends vertically along the vertical projection direction of the horizontal groove. One end of the horizontal section is connected to the top end of the vertical section and extends outward. The feeding belt support wheel is rotatably installed at the end of the horizontal section.

2. The improved feed belt return support mechanism as described in claim 1, characterized in that, The connecting plate and the hinge lug are welded together.

3. The improved feed belt return support mechanism as described in claim 2, characterized in that, The connecting plate and the supporting plate are integrally stamped and bent.

4. An improved feeder belt return support mechanism as described in claim 1, characterized in that, The feed belt support roller is equipped with an axle, and a U-shaped groove is opened at the end of the horizontal section. The two ends of the axle are respectively installed in the U-shaped groove and fixed with nuts and washers.

5. An improved feeder belt return support mechanism as described in claim 4, characterized in that, The main body of the support also includes a dust collection device, which includes a dust collection bag and a dust collection bag support rod. The dust collection bag support rods are in two sets, respectively installed on the horizontal section of the support plate and extending in the horizontal direction. In the vertical projection direction, one end of the dust collection bag support rod extends at least beyond the outer edge of the feed belt support wheel, and the other end extends at least beyond the outer side of the horizontal groove rail. The opening of the dust collection bag is detachably installed on the dust collection bag support rod.

6. An improved feeder belt return support mechanism as described in claim 5, characterized in that, The ends of the dust collection bag support rods are all provided with semi-circular arc-shaped bayonets, and the opening of the dust collection bag is provided with a retaining ring. During installation, the retaining ring is inserted into the bayonets to achieve a detachable connection between the two.

7. An improved feeder belt return support mechanism as described in claim 6, characterized in that, The dust collection bag support rods are installed at both ends of the wheel axle.

8. An improved feeder belt return support mechanism as described in claim 1, characterized in that, The lead screw is provided with different threaded sections, including a first threaded section that engages with the bottom end of the lifting arm and a second threaded section that engages with the movable base.

9. An improved feeder belt return support mechanism as described in claim 8, characterized in that, The ratio of the thread pitch of the first thread segment to the thread pitch of the second thread segment is 6:

1.

10. An improved feeder belt return support mechanism as described in claim 9, characterized in that, The first threaded section uses a trapezoidal thread, and the second threaded section uses a fine-pitch ordinary thread.

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