Automatic centering device for belt conveyors

Abstract

The utility model relates to the field of mixing equipment discloses an automatic centering device of belt conveyor, including the seat of a belt, the driving pulley rotationally arranged in one end of the seat, the driven pulley rotationally arranged in the other end of the seat and the conveyor belt of the sleeve setting between the driving pulley and the driven pulley, the driving pulley and the driven pulley all gradually reduce along the axis direction from the middle position to both ends.The utility model has the advantages that: can effectively reduce the parallelism requirement of the two shafts of the driving pulley and the driven pulley, and utilizes the driving pulley and the driven pulley to realize the automatic correction to the conveyor belt, makes the conveyor belt better in the central state in the working process, thereby helps to realize the accurate conveying of materials, and realizes the possibility of extending the conveyor belt outward.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, and in particular to an automatic centering device for a belt conveyor. Background Technology

[0002] EVA is a material copolymerized from ethylene and vinyl acetate, and its market demand continues to rise, especially in the footwear industry where it is widely used. In the production of EVA footwear materials, a mixing device is typically used to blend at least two foaming materials.

[0003] To ensure continuous material conveying and improve feeding accuracy, the applicant filed a material quantitative discharge structure application on June 11, 2024 (application number CN202421305628.8). This material quantitative discharge structure uses a conveyor belt to transport materials, ensuring continuous conveying. However, in actual use, the conveyor belt is prone to deviation, which adversely affects the accurate delivery of materials. In view of the aforementioned problems, the inventors of this case conducted in-depth research on this issue, resulting in this application. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an automatic centering device for a belt conveyor, which solves the problem that the conveyor belt is prone to deviation in the prior art. It can reduce the parallelism requirements of the two shafts of the driving pulley and the driven pulley, and use the driving pulley and the driven pulley to realize automatic correction of the conveyor belt, so that the conveyor belt can be better centered during operation.

[0005] This utility model is implemented as follows: an automatic centering device for a belt conveyor includes a belt seat, a driving pulley rotatably disposed at one end of the belt seat, a driven pulley rotatably disposed at the other end of the belt seat, and a conveyor belt sleeved between the driving pulley and the driven pulley; the driving pulley and the driven pulley both gradually shrink from the middle position to both ends along the axial direction.

[0006] Furthermore, the two ends and the middle position of the driving pulley and the driven pulley are aligned with each other.

[0007] Furthermore, the outer surface of the drive pulley is provided with several anti-slip protrusions in a circumferential direction from one end to the other.

[0008] Furthermore, each of the anti-slip protrusions has a triangular bevel at both ends along the axial direction, and a trapezoidal bevel on both sides of each anti-slip protrusion.

[0009] Furthermore, the two sides of one end of the belt seat extend outward to form a first extension piece, and a bearing seat clamping groove is formed on the first extension piece. The bearing seat is clamped in the bearing seat clamping groove. The drive pulley is rotatably connected to the bearing seat through a first shaft body, and a drive mechanism is connected to one end of the first shaft body.

[0010] Furthermore, a first through hole is provided in the middle of the first shaft along the radial direction, and a second through hole is provided in the middle of the drive pulley at the position corresponding to the first through hole. The first shaft and the drive pulley are fixed together by fixing pins inserted into the first and second through holes.

[0011] Furthermore, the bearing seat has a ring-shaped structure, and the outer wall of the bearing seat has an annular groove that matches the bearing seat clamping groove in the circumferential direction.

[0012] Furthermore, both ends of the drive pulley are formed with limiting grooves, and one end of the shaft seat extends into the limiting groove.

[0013] Furthermore, the other two sides of the belt seat extend outward to form a second extension piece, and a shaft clamping groove is formed on the second extension piece. The driven pulley is rotatably connected to the shaft clamping groove through a second shaft.

[0014] By adopting the technical solution of this utility model, at least the following beneficial effects are achieved: By designing both the driving pulley and the driven pulley to gradually shrink from the middle position to both ends along the axial direction, that is, both the driving pulley and the driven pulley have a conical structure with a convex center, the parallelism requirements of the two shafts of the driving pulley and the driven pulley can be effectively reduced during actual use. The driving pulley and the driven pulley can be used to automatically correct the conveyor belt, so that the conveyor belt can be better centered during operation, thereby helping to achieve accurate material conveying and realizing the possibility of extending the conveyor belt outward. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is an overall structural diagram of the automatic centering device of this utility model;

[0017] Figure 2 This is a structural diagram of the automatic centering device of this utility model after the conveyor belt has been removed;

[0018] Figure 3 This is a structural diagram of the drive pulley in this utility model;

[0019] Figure 4 yes Figure 3 Enlarged view of part A in the middle;

[0020] Figure 5 This is a structural diagram of the first shaft in this utility model;

[0021] Figure 6 This is a structural diagram of the driven pulley in this utility model;

[0022] Figure 7 This is a structural diagram of the present invention with a base;

[0023] Figure 8 This is a structural diagram of the central shaft support of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] Automatic centering device 100;

[0026] Belt 1, first extension piece 11, shaft seat clamping groove 111, first assembly slot 1111, second extension piece 12, shaft body clamping groove 121, second assembly slot 1211;

[0027] Active pulley 2, anti-slip protrusion 21, triangular inclined surface 211, trapezoidal inclined surface 212, first shaft 22, first through hole 221, limiting groove 23, second through hole 24;

[0028] Driven pulley 3, second shaft 31;

[0029] Conveyor belt 4;

[0030] Shaft seat 5, annular groove 51;

[0031] Drive mechanism 6. Detailed Implementation

[0032] To better understand the technical solution of this utility model, the technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] It should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing these embodiments and for 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0034] Please see Figures 1 to 8As shown in the preferred embodiment of the automatic centering device 100 for a belt conveyor of the present invention, the automatic centering device 100 includes a belt seat 1, a driving pulley 2 rotatably disposed at one end of the belt seat 1, a driven pulley 3 rotatably disposed at the other end of the belt seat 1, and a conveyor belt 4 sleeved between the driving pulley 2 and the driven pulley 3; the driving pulley 2 and the driven pulley 3 are both gradually reduced in size from the middle position to both ends along the axial direction, that is, the driving pulley 2 and the driven pulley 3 are both conical structures with a convex center.

[0035] Because conventional cylindrical drive and driven pulleys require a high degree of parallelism between their two shafts, otherwise the conveyor belt can easily deviate during long-term operation. In practical use, it is often necessary to make two shoulders on both sides of the pulleys to limit the belt's deviation. This invention, however, designs both the drive pulley 2 and the driven pulley 3 to gradually taper from the center outwards along the axial direction, meaning both have a conical structure with a raised center. This effectively reduces the parallelism requirement between the two shafts of the drive and driven pulleys 2 and 3 during use. Furthermore, the drive and driven pulleys 2 and 3 enable automatic correction of the conveyor belt 4, keeping it more centered during operation. This facilitates precise material transport and allows for the extension of the conveyor belt 4 outwards.

[0036] In a preferred embodiment of this utility model, in order to ensure that the driving pulley 2 and the driven pulley 3 can better automatically correct the conveyor belt 4, the two ends and the middle position of the driving pulley 2 and the driven pulley 3 are aligned with each other.

[0037] In a preferred embodiment of this utility model, the outer surface of the drive pulley 2 is provided with several anti-slip protrusions 21 around the circumference from one end to the other to increase the friction between the drive pulley 2 and the conveyor belt 4, ensuring that the conveyor belt 4 will not slip during operation.

[0038] As one specific embodiment of this utility model, please refer to the following: Figure 4 As shown, each of the anti-slip protrusions 21 has a triangular inclined surface 211 at both ends along the axial direction, and a trapezoidal inclined surface 212 is formed on both sides of each anti-slip protrusion 21.

[0039] In the preferred embodiment of this utility model, please refer to the following: Figure 7As shown, the two sides of one end of the belt seat 1 extend outward to form a first extension piece 11. A bearing seat clamping groove 111 is formed on the first extension piece 11, and a bearing seat 5 is clamped in the bearing seat clamping groove 111. The drive pulley 2 is rotatably connected to the bearing seat 5 via a first shaft 22. One end of the first shaft 22 is connected to a drive mechanism 6, which drives the first shaft 22 to rotate the drive pulley 2. This invention rotatably connects the drive pulley 2 to the bearing seat 5 via the first shaft 22 and clamps the bearing seat 5 in the bearing seat clamping groove 111 of the first extension piece 11. This allows for the disassembly of the bearing seat 5, the first shaft 22, and the drive pulley 2 during actual use, facilitating replacement and maintenance.

[0040] Furthermore, a first through hole 221 is provided in the middle of the first shaft 22 along the radial direction, and a second through hole 24 is provided in the middle of the drive pulley 2 at the position corresponding to the first through hole 221. The first shaft 22 and the drive pulley 2 are fixed together by fixing pins (not shown) inserted into the first through hole 221 and the second through hole 24, so that the first shaft 22 can reliably drive the drive pulley 2 to rotate. At the same time, after removing the fixing pin, the first shaft 22 and the drive pulley 2 can be disassembled and separated, thereby facilitating operations such as replacing the drive pulley 2.

[0041] For further details, please refer to the following: Figure 8 As shown, the bearing seat 5 has an annular structure, and the outer wall of the bearing seat 5 has an annular groove 51 formed around the circumference to cooperate with the bearing seat clamping groove 111. During use, the annular groove 51 can be used to achieve axial limiting function. In a specific implementation of this utility model, the bearing seat clamping groove 111 forms a first assembly slot 1111, and the size of the first assembly slot 1111 is smaller than the outer diameter of the bearing seat 5 at the position corresponding to the annular groove 51, so as to ensure that after the bearing seat 5 is assembled into the bearing seat clamping groove 111, the bearing seat 5 will not fall out of the bearing seat clamping groove 111 without human intervention.

[0042] In a preferred embodiment of the present invention, both ends of the drive pulley 2 are provided with limiting grooves 23, and one end of the bearing seat 5 extends into the limiting grooves 23, so as to limit the end of the drive pulley 2 by using the bearing seat 5, thereby improving the rotational stability of the drive pulley 2.

[0043] In the preferred embodiment of this utility model, please refer to the following: Figure 7As shown, the other end of the belt seat 1 has two outwardly extending sides forming second extension plates 12. A shaft clamping groove 121 is formed on the second extension plate 12. The driven pulley 3 is rotatably connected to the shaft clamping groove 121 via a second shaft 31. In a specific implementation of this invention, the shaft clamping groove 121 forms a second mounting slot 1211, and the size of the second mounting slot 1211 is smaller than the outer diameter of the second shaft 31. This ensures that after the second shaft 31 is assembled into the shaft clamping groove 121, the second shaft 31 will not detach from the shaft clamping groove 121 without human intervention. This invention uses a rotatable connection between the driven pulley 3 and the shaft clamping groove 121 of the second extension plate 12 via the second shaft 31, allowing for disassembly and separation of the driven pulley 3 and the second shaft 31 during use, thus facilitating operations such as replacing the driven pulley 3.

[0044] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. An automatic centering device for a belt conveyor, comprising a belt seat, a drive pulley rotatably disposed at one end of the belt seat, a driven pulley rotatably disposed at the other end of the belt seat, and a conveyor belt sleeved between the drive pulley and the driven pulley; characterized in that: Both the driving pulley and the driven pulley gradually decrease in size from the middle position to both ends along the axial direction.

2. The automatic centering device for a belt conveyor as described in claim 1, characterized in that: The two ends and the middle position of the driving pulley and the driven pulley are aligned with each other.

3. The automatic centering device for a belt conveyor as described in claim 1, characterized in that: The outer surface of the drive pulley is provided with several anti-slip protrusions in a circular direction from one end to the other.

4. The automatic centering device for a belt conveyor as described in claim 3, characterized in that: Each of the anti-slip protrusions has triangular bevels at both ends along the axial direction, and trapezoidal bevels on both sides of each anti-slip protrusion.

5. The automatic centering device for a belt conveyor as described in claim 1, characterized in that: The belt seat has two sides extending outward to form a first extension piece, and a bearing seat clamping groove is formed on the first extension piece. The bearing seat is clamped in the bearing seat clamping groove. The drive pulley is rotatably connected to the bearing seat through a first shaft body. One end of the first shaft body is connected to a drive mechanism.

6. The automatic centering device for a belt conveyor as described in claim 5, characterized in that: The first shaft has a first through hole in the radial direction at the middle position, and the drive pulley has a second through hole at the middle position corresponding to the first through hole. The first shaft and the drive pulley are fixed together by fixing pins inserted into the first and second through holes.

7. The automatic centering device for a belt conveyor as described in claim 5, characterized in that: The bearing seat has a ring-shaped structure, and the outer wall of the bearing seat has an annular groove that matches the bearing seat clamping groove around the circumference.

8. The automatic centering device for a belt conveyor as described in claim 7, characterized in that: Both ends of the drive pulley are formed with limiting grooves, and one end of the shaft seat extends into the limiting groove.

9. The automatic centering device for a belt conveyor as described in claim 1, characterized in that: The other end of the belt seat has two sides extending outward to form a second extension piece, and a shaft clamping groove is formed on the second extension piece. The driven pulley is rotatably connected to the shaft clamping groove through a second shaft.

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