Dustproof sealing device

Abstract

The dustproof sealing device comprises a flexible sealing cover with the two ends open and a plurality of flexible frameworks, the flexible frameworks are laid on the flexible sealing cover, and the matching relation between the adjacent flexible frameworks is suitable for changing along with the shape change of the flexible sealing cover. The dustproof sealing device has the advantages of being resistant to abrasion, good in sealing and noise reduction effect and not prone to blockage, the flexible structures and the rigid structures can be formed by the dustproof sealing device through the flexible frameworks, and the dustproof sealing device has the advantages of being good in sealing and noise reduction effect and not prone to blockage. And guiding, sealing and noise reduction can be conducted on material conveying in different connection states between devices, and higher performance and applicability are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of conveying equipment, and in particular to a dustproof sealing device. Background Art

[0002] Bucket wheel stacker-reclaimer is a kind of high-efficiency loading and unloading machine used for large dry bulk cargo yards, which can stack and retrieve materials continuously. It consists of a belt conveyor arm that can pitch and swing horizontally, a bucket wheel at the front end, a frame, and a running mechanism. The belt can run in both directions. When retrieving materials, the bucket wheel takes the materials and sends them out through the conveyor arm. When stacking materials, the goods transported by the main conveyor are thrown into the yard through the conveyor arm.

[0003] Since the bucket wheel stacker and reclaimer needs to adjust the angle according to the stacking and reclaiming status and position when the cantilever belt is working, the seal between the adjustable material collection device and the material guide chute must meet the requirements of its angle being adjustable within a certain range, ensuring sealing performance, easy maintenance and replacement, and resistance to material corrosion and other properties.

[0004] However, the existing dust-proof devices for the transfer process of bucket wheel stackers have the following defects: the dust-proof devices currently used are divided into two types: rigid structure and flexible structure. The dust-proof devices with rigid structures are difficult to adapt to the angle adjustment changes between the adjustable material collection device and the material guide trough, and have poor sealing performance. The dust-proof devices with flexible structures have low structural strength and poor wear resistance. Summary of the invention

[0005] One purpose of the present application is to provide a dustproof sealing device with changeable rigidity and flexibility and strong applicability.

[0006] In order to achieve the above objectives, the technical solution adopted in the present application is: a dustproof sealing device, comprising a flexible sealing cover with openings at both ends and a plurality of flexible skeletons, wherein the flexible skeletons are laid on the flexible sealing cover, and the matching relationship between adjacent flexible skeletons is suitable for changing with the shape of the flexible sealing cover, and the adjacent flexible skeletons are suitable for being transformed into a rigid structure when entering a first matching relationship to support and solidify the flexible sealing cover.

[0007] In some embodiments, the flexible skeletons are arranged at intervals in a direction perpendicular to a line connecting the openings at both ends of the flexible sealing cover.

[0008] In some embodiments, the flexible skeleton includes a first skeleton and a second skeleton, the first skeleton is arranged along a first direction, the second skeleton is arranged along a second direction, and when the flexible skeleton enters a first mating relationship, the second skeleton is suitable for contacting the first skeleton on an adjacent flexible skeleton.

[0009] In some embodiments, the second skeletons on two adjacent flexible skeletons are arranged in a staggered manner; there are multiple second skeletons, and the second skeletons are arranged on the first skeleton at intervals.

[0010] In some embodiments, the flexible skeleton is arranged around the circumference of the flexible sealing cover.

[0011] In some embodiments, a rigid support frame is arranged on the outer side of the flexible sealing cover along the circumference of the flexible sealing cover, and the rigid support frame is suitable for forming a material transfer channel between the openings at both ends of the flexible sealing cover. The rigid support frame is suitable for cooperating with the flexible skeleton so that the flexible sealing cover between adjacent rigid support frames tends to bulge outward.

[0012] In some embodiments, the flexible sealing cover is made of a one-way air-permeable material, and air is suitable for entering the flexible sealing cover from outside the flexible sealing cover.

[0013] In some embodiments, the flexible sealing cover is sequentially provided with a cut-resistant layer and a flame-retardant layer from the inside to the outside, the cut-resistant layer and the flame-retardant layer are sutured and connected, and the flexible skeleton is provided in the cut-resistant layer in the form of a sandwich.

[0014] In some embodiments, the flexible skeleton is a shape memory alloy, and the influencing factors of the first matching relationship include temperature and / or mechanical stress.

[0015] In some embodiments, connecting flanges are provided at both end openings of the flexible sealing cover, one end of the connecting flange is sewn and spliced ​​with the flexible sealing cover, and the other end of the connecting flange is suitable for connecting to external equipment.

[0016] Compared with the prior art, the beneficial effect of the present application is that the dustproof sealing device of the present application can better seal the transfer process of the bucket wheel stacker and reclaimer through the flexible structure of the flexible sealing cover itself, reduce dust and material scattering, and effectively reduce the generation of noise, and the flexible skeleton on the flexible sealing cover can change its own structure to a rigid state when the flexible sealing cover is deformed with the action of the bucket wheel stacker and reclaimer. When it is deformed to a certain fixed form, it can support and reinforce the flexible sealing cover, so that the flexible sealing cover forms a rigid structure, improves the impact resistance of the flexible sealing cover, and reduces the occurrence of material accumulation and blockage. In addition, by optimizing the material structure of the flexible sealing cover, the wear resistance and corrosion resistance of the flexible sealing cover are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure according to a preferred embodiment of the present application.

[0018] Figure 2It is a schematic diagram of the arrangement of a flexible skeleton according to a preferred embodiment of the present application.

[0019] Figure 3 is a cross-sectional view of a flexible sealing cover according to a preferred embodiment of the present application.

[0020] Figure 4 According to a preferred embodiment of the present application Figure 3 Magnified view at point a.

[0021] Figure 5 It is a connection diagram according to the first form of a preferred embodiment of the present application.

[0022] Figure 6 It is a connection diagram according to the second form of a preferred embodiment of the present application.

[0023] In the figure: 1. Sealing device; 11. Flexible sealing cover; 111. Material transfer channel; 112. Anti-cut layer; 113. Flame retardant layer; 114. Connecting flange; 12. Flexible skeleton; 121. First skeleton; 122. Second skeleton; 13. Rigid support frame; 2. Feeding device; 21. Unloading point; 3. Conveying device; 31. Material taking point. DETAILED DESCRIPTION

[0024] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0026] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0027] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0028] The present application is further described below with reference to the accompanying drawings:

[0029] like Figures 1 to 6 As shown, the present application provides a dustproof sealing device, the sealing device 1 includes a flexible sealing cover 11 with openings at both ends and a plurality of flexible skeletons 12, the open ends of the flexible sealing cover 11 are respectively connected to the unloading point 21 of the feeding device 2 and the picking point 31 of the conveying device 3, so as to guide and seal the material transportation between the two devices, reduce the occurrence of dust, material scattering and noise during the material transportation process, reduce the occurrence of equipment failure and shutdown due to material leakage, thereby reducing energy waste and protecting the working environment and the health of operators.

[0030] The flexible skeleton 12 is laid on the flexible sealing cover 11, and the matching relationship between adjacent flexible skeletons 12 is suitable to change with the shape change of the flexible sealing cover 11. The matching relationship here includes but is not limited to non-contact matching, contact matching and interference matching. The shape change of the flexible sealing cover 11 refers to the bending change in the external structure of the flexible sealing cover 11. The adjacent flexible skeletons 12 are suitable to be transformed into a rigid structure when entering the first matching relationship to support the solidification of the flexible sealing cover 11, so as to improve the structural strength of the flexible sealing cover 11 and improve the impact resistance of the flexible sealing cover 11.

[0031] In the present application, when adjacent flexible skeletons 12 are in a matching relationship other than the first matching relationship, the flexible skeleton 12 is a flexible structure. At this time, the flexible skeleton 12 can change with the shape change of the flexible sealing cover 11 and will not cause excessive influence and interference on the shape change of the flexible sealing cover 11.

[0032] For example, when the surface of the flexible sealing cover 11 is in a flat state, the matching relationship between adjacent flexible skeletons 12 is non-contact matching. At this time, the flexible skeleton 12 is a flexible structure. When the surface of the flexible sealing cover 11 bends and deforms as the relative positions of the feeding device 2 and the conveying device 3 change, the matching relationship between adjacent flexible skeletons 12 changes from non-contact matching to contact matching, or even to interference matching, thereby converting the flexible skeleton 12 into a rigid structure, thereby realizing the support and solidification of the flexible sealing cover 11.

[0033] It is worth noting that Figure 5 and Figure 6The folding shape change of the flexible sealing cover 11 shown in the figure is only for illustration. In actual design, it is necessary to make a specific design according to the relative positions of the feeding device 2 and the conveying device 3 before and after the amplitude change, the specifications of the flexible sealing cover 11 and other parameters. The flexible sealing cover 11 may not necessarily have Figure 1 and Figure 2 The partially flat state shown in the figure may also only change its shape between a folding with a smaller curvature and a folding with a larger curvature. When the flexible sealing cover 11 changes its shape until each part reaches a folding shape with a certain curvature to satisfy the condition that the flexible skeleton 12 becomes a rigid structure, the rigid structure change of the flexible skeleton 12 can be utilized to realize the support and solidification of the flexible sealing cover 11.

[0034] In the present application, the flexible sealing cover 11 usually needs to be transformed into a rigid structure when the feeding device 2 and the conveying device 3 are in the material conveying stage, and be a flexible structure in the non-material conveying stage. Therefore, the shape of the flexible sealing cover 11 in the material conveying stage and the matching relationship between the corresponding flexible skeleton 12 in this shape can be used as the first matching relationship to meet the needs of sealed conveying.

[0035] In some embodiments, the flexible skeleton 12 is a shape memory alloy, and the influencing factors of the first matching relationship include temperature and / or the magnitude of mechanical stress.

[0036] In the present application, the influencing factor of the first matching relationship is usually set to the magnitude of mechanical stress. Compared with temperature, the magnitude of mechanical stress is more controllable, which can ensure the stability of the flexible skeleton 12 when it is transformed into a rigid structure, and the implementation cost is low.

[0037] It can be understood that when the influencing factor of the first matching relationship is the magnitude of mechanical stress, the first matching relationship can be a interference fit, and the trigger threshold of the first matching relationship is achieved by pre-setting the strength of the interference fit between adjacent flexible skeletons 12. When the strength of the interference fit is within the trigger threshold, the adjacent flexible skeletons 12 are in the first matching relationship. At this time, the flexible skeleton 12 will be transformed into a rigid structure, and the strength of the interference fit between adjacent flexible skeletons 12 can be achieved through the morphological change of the flexible sealing cover 11, which usually refers to the bending deformation of the flexible sealing cover 11 in this application.

[0038] like Figure 2 In the illustrated embodiment, the flexible skeletons 12 are arranged at intervals in a direction perpendicular to the line connecting the openings at both ends of the flexible sealing cover 11. The flexible skeletons 12 are arranged at intervals to prevent the flexible skeletons 12 from contacting each other and mistakenly entering into the first matching relationship to form a rigid structure, thereby affecting the normal deformation and use of the flexible sealing cover 11.

[0039] like Figure 2In the illustrated embodiment, the flexible skeleton 12 includes a first skeleton 121 and a second skeleton 122. The first skeleton 121 is arranged along a first direction, and the second skeleton 122 is arranged along a second direction. When the flexible skeleton 12 enters a first mating relationship, the second skeleton 122 is suitable for contacting the first skeleton 121 on the adjacent flexible skeleton 12. In the present application, since the flexible sealing cover 11 is required to undergo a bending deformation when moving or even to be transformed into a rigid structure when folded, it is necessary to consider the change in the mating state of the flexible skeleton 12 when the flexible sealing cover 11 is in the unfolded state and the folded state. The structural design of the first skeleton 121 and the second skeleton 122 can meet this requirement while saving materials.

[0040] In some embodiments, the second skeleton 122 is adapted to further contact the first skeleton 121 on the adjacent flexible skeleton 12 to transform into a rigid structure. Such a design can further reduce the probability of the flexible skeleton 12 being mistakenly transformed into a rigid structure.

[0041] like Figure 2 In the illustrated embodiment, the first direction and the second direction are perpendicular to each other, which can facilitate the calculation and configuration of the contact stress between the first skeleton 121 and the first skeleton 121 on the adjacent flexible skeleton 12, thereby setting a reasonable trigger threshold, increasing the coverage area, and reducing the use of the overall material of the flexible skeleton 12, thereby reducing costs.

[0042] like Figure 2 In the illustrated embodiment, the second skeletons 122 on two adjacent flexible skeletons 12 are arranged in a staggered manner, so that a sufficient number of second skeletons 122 can be arranged to fully utilize the space between the two adjacent flexible skeletons 12 to obtain higher structural strength and structural stability in a rigid structural state.

[0043] like Figure 2 In the illustrated embodiment, there are multiple second frames 122 , and the second frames 122 are arranged at intervals on the first frame 121 , which can further improve the structural strength and structural stability in a rigid structural state.

[0044] like Figure 2 In the illustrated embodiment, the flexible skeleton 12 is arranged around the circumference of the flexible sealing cover 11 to ensure the overall circumferential rigidity and structural stability of the flexible sealing cover 11 in a rigid structural state.

[0045] like Figure 1 and 3In the embodiment shown, a rigid support frame 13 is arranged around the outer side of the flexible sealing cover 11 along the circumference of the flexible sealing cover 11. The rigid support frame 13 is suitable for forming a material passage 111 between the openings at both ends of the flexible sealing cover 11. The rigid support frame 13 is suitable for cooperating with the flexible skeleton 12 so that the flexible sealing cover 11 between adjacent rigid support frames 13 tends to bulge outward (i.e. Figure 3 In the direction indicated by the middle arrow), it can not only prevent the concave of the flexible sealing cover 11 from affecting the conveying of the material passage 111, but also ensure that the flexible sealing cover 11 can maintain the same direction of deformation so that the adjacent flexible skeletons 12 can be stably matched to trigger the transition to the rigid structure.

[0046] It is understandable that although the flexible skeleton 12 itself is flexible, it still has a certain supporting capacity. By reasonably configuring the structural relationship between the flexible skeleton 12 and the rigid support frame 13, the flexible sealing cover 11 between adjacent rigid support frames 13 can be made to bulge outward.

[0047] In some embodiments, the rigid support frame 13 is made of carbon tube or carbon fiber.

[0048] In some embodiments, the connection between the rigid support frame 13 and the flexible support cover can be that a flexible tube sleeve is sewn on the outside of the flexible support cover, and the rigid support member is passed into the flexible tube sleeve to support the flexible support cover.

[0049] In some embodiments, the flexible sealing cover 11 is made of a one-way breathable material, and air is suitable for entering the flexible sealing cover 11 from the outside of the flexible sealing cover 11. The dust in the flexible sealing cover 11 cannot overflow. When the feeding device 2 and the conveying device 3 move relative to each other, the negative pressure generated by the deformation inside the flexible sealing cover 11 can draw in external air, thereby shaking off the material attached to the inner wall into the material guide trough, reducing the probability of material accumulation and blockage.

[0050] like Figure 4 In the illustrated embodiment, the flexible sealing cover 11 is sequentially provided with an anti-cut layer 112 and a flame retardant layer 113 from the inside to the outside, the anti-cut layer 112 and the flame retardant layer 113 are sewn together, the material of the anti-cut layer 112 has high anti-cut performance, the anti-cut layer 112 has tensile and shear resistance that meets the parameter requirements, and the service life parameters meet the parameter requirements, the material of the flame retardant layer 113 has high flame retardant performance, the flexible skeleton 12 is arranged in the anti-cut layer 112 in the form of a sandwich, and the flexible skeleton 12 is arranged in the anti-cut layer 112. The physical properties of the anti-cut layer 112 can be used to effectively reduce the probability of puncture of the flexible skeleton 12, thereby improving the structural stability.

[0051] In some embodiments, the material of the cut-resistant layer 112 is cut-resistant HPPE-4 cloth, and a memory metal is disposed in the interlayer.

[0052] In some embodiments, the flame retardant layer 113 is made of high-tenacity flame retardant aramid fiber with a strength of 194-221 cN / dtex and an elastic modulus of 4634-8650 cN / dtex.

[0053] In some embodiments, the outer side of the flame retardant layer 113 is covered with a layer of V-0 flame retardant silicone, which can further improve the flame retardant performance.

[0054] like Figures 1 to 4 In the illustrated embodiment, connecting flanges 114 are provided at the openings at both ends of the flexible sealing cover 11, one end of the connecting flange 114 is sewn and spliced ​​with the flexible sealing cover 11, and the other end of the connecting flange 114 is suitable for connecting external equipment. The flexible sealing cover 11 is connected to the feeding device 2 and the conveying device 3 through the connecting flange 114, which can achieve higher connection strength and better sealing. The cumulative assembly error can be removed by customizing the connecting flange 114 to improve the matching accuracy between the flexible skeletons 12.

[0055] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A dustproof sealing device, characterized in that: It includes a flexible sealing cover with openings at both ends and multiple flexible skeletons, wherein the flexible skeletons are laid on the flexible sealing cover, and the matching relationship between adjacent flexible skeletons is suitable for changing with the shape of the flexible sealing cover. The adjacent flexible skeletons are suitable for being transformed into a rigid structure when entering a first matching relationship to support and solidify the flexible sealing cover.

2. A dustproof sealing device according to claim 1, characterized in that: The flexible frames are arranged at intervals along a direction perpendicular to a line connecting the openings at both ends of the flexible sealing cover.

3. A dustproof sealing device according to claim 2, characterized in that: The flexible skeleton includes a first skeleton and a second skeleton, wherein the first skeleton is arranged along a first direction, and the second skeleton is arranged along a second direction. When the flexible skeleton enters a first mating relationship, the second skeleton is adapted to contact the first skeleton on an adjacent flexible skeleton.

4. A dustproof sealing device according to claim 3, characterized in that: The second skeletons on two adjacent flexible skeletons are arranged in a staggered manner; there are multiple second skeletons, and the second skeletons are arranged on the first skeleton at intervals.

5. A dustproof sealing device according to claim 1, characterized in that: The flexible skeleton is arranged around the circumference of the flexible sealing cover.

6. A dustproof sealing device according to claim 1, characterized in that: A rigid support frame is arranged on the outer side of the flexible sealing cover along the circumference of the flexible sealing cover, and the rigid support frame is suitable for forming a material transfer channel between the openings at both ends of the flexible sealing cover. The rigid support frame is suitable for cooperating with the flexible skeleton so that the flexible sealing cover between adjacent rigid support frames tends to bulge outward.

7. A dustproof sealing device according to claim 1, characterized in that: The flexible sealing cover is made of a one-way air-permeable material, and air is suitable for entering the flexible sealing cover from the outside of the flexible sealing cover.

8. A dustproof sealing device according to claim 1, characterized in that: The flexible sealing cover is sequentially provided with a cut-resistant layer and a flame-retardant layer from the inside to the outside, the cut-resistant layer and the flame-retardant layer are sutured and connected, and the flexible skeleton is provided in the cut-resistant layer in the form of a sandwich.

9. A dustproof sealing device according to claim 1, characterized in that: The flexible skeleton is a shape memory alloy, and the influencing factors of the first matching relationship include temperature and / or the magnitude of mechanical stress.

10. A dustproof sealing device according to claim 1, characterized in that: Connection flanges are arranged at the openings at both ends of the flexible sealing cover, one end of the connection flange is sewn and spliced ​​with the flexible sealing cover, and the other end of the connection flange is suitable for connecting to external equipment.

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