Deviation correcting device of vacuum belt type drying conveyor

Abstract

The utility model provides a deviation rectifying device of a vacuum belt type drying conveyor, and relates to the technical field of drying equipment. The fixed half shaft and the movable half shaft can be spliced to form a hollow roller; the deviation rectifying mechanism comprises a connecting shaft, one end of the connecting shaft is installed on a support of the vacuum belt type drying conveyor through a bearing, the other end of the connecting shaft is connected with an extending shaft, and the outer diameter of the extending shaft is smaller than that of the connecting shaft. The deviation rectifying cylinder is mounted on the bracket and is arranged on one side of the bearing; one end of the deviation rectifying connecting rod is located in the hollow roller and rotationally connected with a sliding sleeve, and the other end slidably penetrates through the connecting shaft and then is connected with the movable end of the deviation rectifying cylinder; the sliding sleeve and the extension shaft can rotate synchronously, and the sliding sleeve can move along with the deviation rectifying connecting rod; the movable half shaft is fastened on the sliding sleeve; and the tensioning cylinder is mounted on the bracket, is connected with the bearing and is used for adjusting the distance between the hollow roller and the driving roller. And the deviation rectifying device is not easy to be stuck due to material accumulation.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to a deviation correction device for a vacuum belt dryer conveyor. Background Technology

[0002] Vacuum belt dryers are continuous feeding and discharging vacuum drying equipment that operates under a high vacuum. Our company's original belt-aligning device for vacuum belt dryers used a mechanical slider structure on the drive roller. During operation, material inside the dryer easily fell onto the roller surface, causing belt deviation. The mechanical slider structure was prone to material accumulation, leading to jamming of the alignment device. This resulted in the conveyor belt not being able to correct itself promptly after deviation, leading to frequent equipment malfunctions and repairs, severely impacting production efficiency. Utility Model Content

[0003] In response to the above situation, this utility model provides a belt alignment device for a vacuum belt dryer conveyor, aiming to solve the technical problem that the original belt alignment device uses a mechanical slider alignment structure on the drive roller. During equipment operation, materials inside the box are prone to falling onto the roller surface, causing belt deviation. The mechanical slider alignment structure is also prone to material accumulation, causing the belt alignment device to jam. This makes it impossible to correct the belt deviation in time during equipment operation, resulting in a high frequency of equipment failure and maintenance, which seriously affects production efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model provides a deviation correction device for a vacuum belt dryer conveyor, comprising:

[0006] A fixed half-shaft has a cross-section that is semi-circular.

[0007] The movable half-shaft has a semi-circular cross-section. The fixed half-shaft and the movable half-shaft can be combined to form a hollow drum. The hollow drum is used in conjunction with the drive drum of the vacuum belt dryer conveyor.

[0008] The web-aligning mechanism is provided at both ends of the hollow roller; the web-aligning mechanism includes:

[0009] The connecting shaft is mounted on the support of the vacuum belt dryer conveyor at one end via a bearing, and the other end is connected to an extension shaft, the outer diameter of which is smaller than that of the connecting shaft.

[0010] The alignment cylinder is mounted on a bracket and positioned on one side of the bearing;

[0011] The alignment linkage has one end located inside the hollow drum and rotatably connected to a sliding sleeve, and the other end slides through the connecting shaft and is connected to the movable end of the alignment cylinder.

[0012] The sliding sleeve and the extension shaft can rotate synchronously, and the sliding sleeve can move with the correction linkage; the movable half shaft is fastened to the sliding sleeve.

[0013] The tensioning cylinder, mounted on the bracket and connected to the bearing, is used to adjust the gap between the hollow drum and the drive drum.

[0014] In some embodiments of this utility model, the inner side of the sliding sleeve is slidably connected to the outer wall of the extension shaft; the cross-section of the extension shaft is polygonal annular.

[0015] In some embodiments of this utility model, the correction link has a shoulder, a fastening ring is threaded onto the correction link, one end of the correction link passes through one end of the sliding sleeve, and the shoulder and the fastening ring cooperate to make the sliding sleeve move with the correction link.

[0016] In some embodiments of this utility model, multiple protrusions are distributed circumferentially at intervals on the outer walls of the fixed half-shaft and the movable half-shaft.

[0017] In some embodiments of this utility model, the movable half-shaft is provided with multiple grooves spaced apart along its circumference, and rubber strips are connected in the grooves.

[0018] In some embodiments of this invention, the width of the same groove is greater along the radial direction of the movable half-shaft, the closer it is to the axis of the movable half-shaft.

[0019] In some embodiments of this invention, the rubber strip has a V-shaped notch on the side facing the axis of the movable half-shaft.

[0020] In some embodiments of this utility model, the side of the movable half-shaft that is used to assemble with the fixed half-shaft is provided with a plurality of first baffles, and the side of the fixed half-shaft that is used to assemble with the movable half-shaft is provided with a plurality of second baffles, and the first baffles and the second baffles are staggered.

[0021] The embodiments of this utility model have at least the following advantages or beneficial effects:

[0022] The alignment device is less prone to jamming due to material accumulation; the alignment device is no longer located at the drive roller, so there is no need to consider the coordination with the drive equipment used to drive the drive roller.

[0023] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the correction device and the structure of the vacuum belt dryer conveyor.

[0026] Figure 2 A schematic diagram of the hollow roller, bearings, and alignment cylinder;

[0027] Figure 3 A schematic diagram of the rubber strip and the labyrinth structure;

[0028] Figure 4 This is a schematic diagram of the corrective linkage and the sliding sleeve.

[0029] icon:

[0030] 1-Box body, 2-Bracket, 3-Fixed half-shaft, 31-Second baffle,

[0031] 4-Modular half-shaft, 41-Groove, 42-Rubber strip, 421-V-shaped notch, 43-First baffle,

[0032] 5-Connecting shaft, 51-Extension shaft, 52-Bearing,

[0033] 6-Correction cylinder,

[0034] 7-Correction linkage, 71-Shoulder, 72-Fastening ring,

[0035] 8-Sliding sleeve,

[0036] 9-Tensioning cylinder, 91-Connecting part. Detailed Implementation

[0037] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention.

[0038] In the description of the embodiments of this utility model, it should be understood that the terms "width", "inner", "outer", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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 the embodiments of this utility model.

[0039] Furthermore, the terms "first" and "second" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to 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 embodiment of the invention according to the specific circumstances.

[0041] The embodiments of this utility model will be described in detail below.

[0042] Example 1

[0043] Firstly, see [the following] Figure 1 This embodiment first briefly introduces the structure of the vacuum belt dryer conveyor, which includes a box 1, a support 2 is provided inside the box 1, and multiple layers of conveyor belts are arranged from top to bottom on the support 2. Each layer of conveyor belts is provided with a drive roller and a driven roller at both ends.

[0044] Secondly, see Figures 1-3 This embodiment provides a correction device for a vacuum belt dryer conveyor, which replaces the aforementioned driven roller, with the driving roller serving only as the driving end of the conveyor belt. The correction device for the vacuum belt dryer conveyor includes a fixed half-shaft 3 and a movable half-shaft 4. The cross-section of the fixed half-shaft 3 is a semi-circular ring, and the cross-section of the movable half-shaft 4 is a semi-circular ring. The two can be joined together to form a hollow roller. In this embodiment, multiple protrusions are distributed circumferentially on the outer wall of the fixed half-shaft 3, and multiple protrusions are distributed circumferentially on the outer wall of the movable half-shaft 4.

[0045] Both ends of the hollow roller are equipped with a correction mechanism, which includes a connecting shaft 5, a correction cylinder 6, a correction connecting rod 7, a sliding sleeve 8, and a tensioning cylinder 9.

[0046] One end of the connecting shaft 5 is mounted on the support 2 of the vacuum belt dryer via a bearing 52, and the other end is connected to an extension shaft 51. The cross-section of the connecting shaft 5 is circular, and the cross-section of the extension shaft 51 is polygonal. The outer diameter of the extension shaft 51 is smaller than the outer diameter of the connecting shaft 5. The fixed half-shaft 3 is fastened to the connecting shaft 5.

[0047] The correction cylinder 6 is mounted on the bracket 2 and is located on one side of the bearing 52.

[0048] One end of the alignment linkage 7 is located inside the hollow drum and is rotatably connected to the sliding sleeve 8, while the other end slides through the connecting shaft 5 and is connected to the movable end of the alignment cylinder 6.

[0049] The inner side of the sliding sleeve 8 is slidably connected to the outer wall of the extension shaft 51. The sliding sleeve 8 and the extension shaft 51 can rotate synchronously, and the sliding sleeve 8 can move with the correction link 7. The movable half shaft 4 is fastened to the sliding sleeve 8. The correction link 7 has a shoulder 71, and a fastening ring 72 is threaded onto the correction link 7. One end of the correction link 7 passes through one end of the sliding sleeve 8. The shoulder 71 and the fastening ring 72 cooperate to make the sliding sleeve 8 move with the correction link 7.

[0050] The tensioning cylinder 9 is mounted on the bracket 2, and the movable end of the tensioning cylinder 9 is connected to the bearing 52 through the connector 91.

[0051] The conveyor belt moves under the drive of the drive roller, which in turn drives the hollow roller to rotate. When the hollow roller rotates, the fixed half-shaft 3 and the movable half-shaft 4 can contact the conveyor belt one after the other. When the movable half-shaft 4 contacts the conveyor belt and the conveyor belt deviates to one side, the correction mechanism located on that side activates to drive the hollow roller to move in the opposite direction. The friction between the hollow roller and the conveyor belt allows the conveyor belt to move together with the hollow roller, thereby centering the conveyor belt and achieving correction. Since correction mechanisms are provided at both ends of the hollow roller, bidirectional correction can be achieved. Specifically, the working principle of the correction mechanism is as follows: when the correction cylinder 6 is activated, it drives the correction connecting rod 7, which in turn drives the sliding sleeve 8, which in turn drives the movable half-shaft 4 to move. In addition, the tensioning cylinder 9 adjusts the tension of the conveyor belt wound on the drive roller and the hollow roller by adjusting the distance between the hollow roller and the drive roller of the vacuum belt dryer. By appropriately increasing the tension of the conveyor belt, the friction between the movable half shaft 4 and the conveyor belt is increased, so as to ensure that the movable half shaft 4 can drive the conveyor belt to move together to achieve correction.

[0052] Compared to mechanical slider correction structures, the correction device in this embodiment is less prone to jamming due to material accumulation. In addition, the correction device in this embodiment is no longer located at the drive roller, so there is no need to consider the coordination with the drive equipment used to drive the drive roller.

[0053] Example 2

[0054] See Figures 1-4 The difference between this embodiment and Embodiment 1 is that, in this embodiment, the movable half-shaft 4 has multiple grooves 41 spaced apart along its circumference, and rubber strips 42 are connected inside the grooves 41. The rubber strips 42 help to increase the friction between the movable half-shaft 4 and the conveyor belt.

[0055] Furthermore, along the radial direction of the movable half-shaft 4, the closer to the axis of the movable half-shaft 4, the wider the same groove 41 becomes, and the cross-sectional shape of the rubber strip 42 matches the shape of the groove 41. This helps to improve the installation firmness of the rubber strip 42.

[0056] Furthermore, the rubber strip 42 has a V-shaped notch 421 on the side facing the axis of the movable half-shaft 4. This facilitates pressing the rubber strip 42 into the groove 41 after squeezing, and also allows the rubber strip 42 to improve the tightness of the connection between the rubber strip 42 and the groove 41 by utilizing its own restoring force.

[0057] Example 3

[0058] This embodiment is a further improvement based on embodiment 2.

[0059] See Figures 1-4 The movable half-shaft 4 is provided with multiple first baffles 43 on the side where it is to be joined with the fixed half-shaft 3, and the fixed half-shaft 3 is provided with multiple second baffles 31 on the side where it is to be joined with the movable half-shaft 4. The first baffles 43 and the second baffles 31 are staggered and form a maze structure at the connection between the movable half-shaft 4 and the fixed half-shaft 3. This reduces the probability of material entering the hollow drum (in order to ensure the smooth movement of the movable half-shaft 4, there is a certain gap at the connection between the movable half-shaft 4 and the fixed half-shaft 3).

[0060] Finally, it should be noted that the above are merely preferred embodiments of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Without conflict, the embodiments and features described in the embodiments of this application can be arbitrarily combined with each other. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A deviation correction device for a vacuum belt dryer conveyor, characterized in that, include: A fixed half-shaft has a cross-section that is semi-circular. The movable half-shaft has a semi-circular cross-section. The fixed half-shaft and the movable half-shaft can be joined together to form a hollow drum. The hollow drum is used in conjunction with the drive drum of the vacuum belt dryer conveyor. A web-correcting mechanism is provided at both ends of the hollow roller; the web-correcting mechanism includes: The connecting shaft is mounted on the support of the vacuum belt dryer conveyor at one end via a bearing, and the other end is connected to an extension shaft, the outer diameter of which is smaller than the outer diameter of the connecting shaft. A correction cylinder is mounted on the bracket and positioned on one side of the bearing; The correction link has one end located inside the hollow drum and rotatably connected to a sliding sleeve, and the other end slides through the connecting shaft and is connected to the movable end of the correction cylinder. A sliding sleeve, which is capable of rotating synchronously with the extension shaft and can move with the correction linkage; the movable half-shaft is fastened to the sliding sleeve; A tensioning cylinder, mounted on the bracket and connected to the bearing, is used to adjust the distance between the hollow drum and the drive drum.

2. The alignment device for the vacuum belt dryer conveyor according to claim 1, characterized in that, The inner side of the sliding sleeve is slidably connected to the outer wall of the extension shaft; the cross-section of the extension shaft is polygonal and annular.

3. The alignment device for the vacuum belt dryer conveyor according to claim 2, characterized in that, The correction link has a shoulder and a fastening ring is threaded onto it. One end of the correction link passes through one end of the sliding sleeve. The shoulder and the fastening ring cooperate to make the sliding sleeve move with the correction link.

4. The alignment device for the vacuum belt dryer conveyor according to claim 1, characterized in that, The outer walls of the fixed half-shaft and the movable half-shaft are provided with multiple protrusions spaced circumferentially.

5. The alignment device for the vacuum belt dryer conveyor according to claim 1, characterized in that, The movable half-shaft has multiple grooves spaced apart along its circumference, and rubber strips are connected in the grooves.

6. The alignment device for the vacuum belt dryer conveyor according to claim 5, characterized in that, Along the radial direction of the movable half-shaft, the closer to the axis of the movable half-shaft, the greater the width of the same groove.

7. The alignment device for the vacuum belt dryer conveyor according to claim 6, characterized in that, The rubber strip has a V-shaped notch on the side facing the axis of the movable half-shaft.

8. The alignment device for the vacuum belt dryer conveyor according to any one of claims 1 to 7, characterized in that, The movable half-shaft has multiple first baffles on the side where it is to be joined with the fixed half-shaft, and the fixed half-shaft has multiple second baffles on the side where it is to be joined with the movable half-shaft, with the first baffles and second baffles being staggered.

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