A stowed chain boom sealing mechanism

Abstract

The utility model belongs to the technical field of coating drying equipment, specifically relates to a kind of accumulative chain suspender sealing mechanism.Sealing mechanism includes suspender, and suspender one end passes through mounting hole and is fixed;Sealing ring is sealed and fixed on suspender;Flexible heat insulation cylinder is connected to the outside of suspender, and clearance is formed between suspender, and one end of flexible heat insulation cylinder is sealed and connected with sealing ring, and other end is sealed and connected with the outer periphery of mounting hole.The utility model is used to solve the problem of poor sealing effect.Form clearance between heat insulation cylinder and suspender, not fit in the surface of suspender, so that the expansion of suspender does not affect heat insulation cylinder, and heat insulation cylinder two ends are respectively sealed with sealing ring on suspender and mounting hole fixed, and the clearance between suspender and mounting hole is sealed, to avoid heat overflow.

Description

Technical Field

[0001] This utility model belongs to the technical field of coating drying equipment, specifically relating to an accumulation chain rod sealing mechanism. Background Technology

[0002] Currently, the temperature in high-temperature drying chambers in the coating industry is generally around 180℃-220℃. At this temperature, workpieces are almost always transported in and out using conveyor equipment. In particular, considering the installation characteristics of overhead accumulating chain conveyors, mounting holes for hangers need to be opened in the top of the drying chamber to accommodate the installation of the conveyor equipment. The size of the opening and the sealing method are crucial. The size of the opening needs to take into account the differences in material and thickness between the conveyor equipment and the drying chamber itself, while the sealing method needs to prevent heat from escaping.

[0003] Currently, the hangers in the drying chamber are installed in mounting holes drilled in the roof. The hangers are sealed to the mounting holes using high-temperature resistant rubber sheets. The ends of the rubber sheets are elastically bent to abut against the outer circumference of the hangers, forming a seal. The rubber sheets are then fixed in place by pressure plates. Figure 1 As shown.

[0004] However, under high-temperature conditions, the difference in expansion factors between the conveying equipment and the drying chamber causes the conveying equipment's boom and the drying chamber body to be stretched and squeezed, resulting in deformation of the top opening, damage to the seal, and heat leakage from the inside of the equipment, leading to poor sealing performance. Utility Model Content

[0005] To address the shortcomings of existing technologies, an accumulation chain rod sealing mechanism is provided to solve the problem of poor sealing performance.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A sealing mechanism for an accumulation chain rod, applied in the mounting hole of the chamber, the sealing mechanism comprising:

[0007] A boom, one end of which passes through the mounting hole and is fixed.

[0008] A sealing ring is fixedly attached to the boom.

[0009] A flexible heat insulation cylinder is sleeved on the outside of the hanger rod, forming a gap between the flexible heat insulation cylinder and the hanger rod. One end of the flexible heat insulation cylinder is sealed to the sealing ring, and the other end is sealed to the outer periphery of the mounting hole.

[0010] Compared with existing technologies, the above technical solutions have the following beneficial effects:

[0011] A gap is formed between the heat insulation cylinder and the hanger rod, so that the heat insulation cylinder is not attached to the surface of the hanger rod. This ensures that the expansion of the hanger rod will not affect the heat insulation cylinder. Furthermore, both ends of the heat insulation cylinder are fixed to the sealing ring on the hanger rod and the mounting hole, respectively, to seal the gap between the hanger rod and the mounting hole and prevent heat from escaping.

[0012] Based on the above technical solution, the embodiments of this application can be further improved as follows:

[0013] In one embodiment, the system further includes a sleeve, which is fitted into the inner wall of the mounting hole. The first end of the sleeve, near the sealing ring, extends out of the mounting hole and is provided with a flange. The end of the flexible heat insulation cylinder away from the sealing ring is connected and fixed to the flange.

[0014] The flange is extended and fixed by using a sleeve, which makes it easier to fix the heat insulation cylinder. The extended state of the flange also provides a certain amount of operating space on both sides, which facilitates the connection and fixation of the heat insulation cylinder.

[0015] In one embodiment, the flexible heat insulation cylinder includes an extension portion and crimping portions disposed at both ends of the extension portion, the crimping portions being used for connection and fixation, and the length of the extension portion being greater than the distance between the sealing ring and the flange.

[0016] The extension of the flexible insulation cylinder is set to be larger than the distance between the flange and the sealing ring, so that the flexible insulation cylinder also has room for deformation in the axial direction.

[0017] In one embodiment, a pressing plate is also included, wherein the pressing portions at both ends of the flexible heat insulation cylinder are attached to the sealing ring and the flange surface, and the pressing plate is sealed and pressed onto the pressing portions.

[0018] The flexible insulation cylinder is sealed and fixed to the sealing ring and flange by using a pressing plate, which ensures the sealing effect of the flexible insulation cylinder.

[0019] In one embodiment, the first end of the sleeve is sealed to the flange, and the second end of the sleeve is sealed to the fitting mounting hole.

[0020] The two ends of the sleeve that fits the inner wall of the mounting hole are fixed to the flange and the mounting hole respectively, so that the two ends of the mounting hole can be separated by the flexible heat insulation sleeve.

[0021] In one embodiment, a retaining ring is further included, which is sleeved on the outer periphery of the sleeve and is fitted and fixed to the end face of the mounting hole near the flange.

[0022] The retaining ring installed on the mounting hole near the flange end of the sleeve can prevent heat, dust, impurities, etc. from entering the gap between the sleeve and the chamber.

[0023] In one embodiment, the inner ring of the sealing ring is bent to form a bent portion, which is fitted to the outer circumferential surface of the boom.

[0024] In one embodiment, the flexible heat insulation cylinder is an aluminum silicate foil heat insulation cylinder. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the prior art in the background of this utility model.

[0027] Figure 2 This is a schematic diagram of the structure of this utility model.

[0028] Figure label:

[0029] 1. Hanger rod; 2. Mounting hole; 3. Chamber; 4. Sealing ring; 5. Flexible insulation cylinder; 6. Gap; 7. Sleeve sleeve; 8. Flange; 9. Press plate; 10. Retaining ring; 11. Bending section;

[0030] 501. Extension section; 502. Press-fit section. Detailed Implementation

[0031] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0032] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0033] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing 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 this utility model.

[0034] 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 technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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 mechanical connection or an electrical connection; 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 utility model according to the specific circumstances.

[0036] like Figure 2 As shown, the accumulating chain lifting rod sealing mechanism provided by this utility model is applied in the mounting hole 2 of the chamber 3. When the accumulating chain is used in the drying chamber, it can realize the orderly pause or continuous conveying of workpieces in the drying chamber by means of its automatic conveying and accumulating functions, reduce manual intervention, allow temporary storage in the drying chamber, and does not require an additional buffer area, which has many advantages.

[0037] The chamber 3 is the top chamber of the drying chamber. The mounting hole 2 on the chamber 3 is used to pass through the hanger rod. The sealing mechanism includes: hanger rod, sealing ring 4, and flexible heat insulation cylinder 5.

[0038] One end of the suspension rod passes through the mounting hole 2 and is fixed. Specifically, the top of the suspension rod passes through the mounting hole 2 and is fixed outside the chamber 3. The bottom end of the suspension rod is located inside the lower end of the mounting hole 2 in the chamber 3. This end is used to suspend the track, etc.

[0039] The sealing ring 4 is fixed to the suspension rod. In this embodiment, the sealing ring 4 is fixed to the suspension rod at a position outside the chamber 3, that is, the sealing ring 4 is located above the chamber 3.

[0040] The flexible heat insulation cylinder 5 is sleeved on the outside of the hanger rod, forming a gap 6 between it and the hanger rod, that is, the flexible heat insulation cylinder 5 does not contact the hanger rod. One end of the flexible heat insulation cylinder 5 is sealed to the sealing ring 4, and the other end is sealed to the outer periphery of the mounting hole 2.

[0041] The flexible heat insulation cylinder 5 is an aluminum silicate foil heat insulation cylinder.

[0042] A gap 6 is formed between the heat insulation cylinder and the hanger rod, so that the heat insulation cylinder is not attached to the surface of the hanger rod. This ensures that the expansion of the hanger rod will not affect the heat insulation cylinder. The two ends of the heat insulation cylinder are fixed to the sealing ring 4 on the hanger rod and the mounting hole 2, respectively, to seal the gap 6 between the hanger rod and the mounting hole 2 and prevent heat from dissipating.

[0043] To facilitate the connection between the flexible insulation cylinder 5 and the chamber 3, a sleeve 7 is also included. The sleeve 7 is fitted into the inner wall of the mounting hole 2, that is, the outer diameter of the sleeve 7 matches the inner diameter of the mounting hole 2. The sleeve 7 does not contact the hanger. The first end of the sleeve 7 near the sealing ring 4 extends out of the mounting hole 2 and is provided with a flange 8, so that the flange 8 is spaced apart from the top of the chamber 3. The end of the flexible insulation cylinder 5 away from the sealing ring 4 is connected and fixed to the flange 8.

[0044] The flange 8 is extended and fixed by the sleeve 7, which makes it easier to fix the heat insulation cylinder. The extended state of the flange 8 also provides a certain amount of operating space on both sides of the flange 8, which facilitates the connection and fixation of the heat insulation cylinder.

[0045] Specifically, the flexible heat insulation cylinder 5 includes an extension portion 501 and crimping portions 502 disposed at both ends of the extension portion 501. The crimping portions 502 are used for connection and fixation. The length of the extension portion 501 is greater than the distance between the sealing ring 4 and the flange 8.

[0046] The extension portion 501 of the flexible insulation cylinder 5 is set to be larger than the distance between the flange 8 and the sealing ring 4, so that the flexible insulation cylinder 5 also has room for deformation in the axial direction. Since the length of the extension portion 501 of the flexible insulation cylinder 5 is redundantly configured between the flange 8 and the sealing ring 4, no matter if there is a deviation between the flange 8 and the sealing ring 4 in the radial and axial directions, the flexible sealing connection can be maintained through the extension portion 501, thereby maintaining the sealing effect between the hanger and the chamber 3. Moreover, the difference in the coefficient of thermal expansion will not cause interference between the hanger and the mounting hole 2 of the chamber 3. While playing a sealing role, it also avoids the problem of equipment damage caused by inconsistent expansion.

[0047] It also includes a pressing plate 9, of which two pressing plates are provided. The pressing plate 9 is an annular pressing plate 9, which matches the size of the sealing plate and the flange 8. The pressing parts 502 at both ends of the flexible heat insulation cylinder 5 are attached to the surface of the sealing ring 4 and the flange 8, and the pressing plate 9 is sealed and pressed onto the pressing part 502.

[0048] The two ends of the flexible heat insulation cylinder 5 are sealed and fixed to the sealing ring 4 and flange 8 by the pressure plate 9, which ensures the sealing effect of the flexible heat insulation cylinder 5.

[0049] Furthermore, fasteners, such as bolts, can be installed on the pressing plate 9 to fix one end of the flexible heat insulation cylinder 5 through the pressing plate 9, the pressing part 502, and the sealing ring. Similarly, the other end of the flexible heat insulation cylinder 5 is fixed by using bolts to pass through the pressing part 9, the pressing part 502, and the flange 8. The fasteners are then used to press the pressing part 502 through the pressing plate 9 to tightly fix the cylinder to the flange 8 and the sealing ring 4.

[0050] Specifically, the first end of the sleeve 7 is sealed to the flange 8, that is, the flange 8 is fixedly welded to the top of the sleeve 7 to form a seal with the sleeve 7. The second end of the sleeve 7 is sealed to the fitting mounting hole 2. Specifically, the second end and the bottom end of the sleeve 7 can be welded and fixed to the bottom end of the mounting hole 2 of the chamber 3. The sleeve 7 can be a metal sleeve 7, which is convenient to weld and fix to the flange 8 and the chamber 3. The two ends of the sleeve 7 that fit the inner wall of the mounting hole 2 are fixed to the flange 8 and the mounting hole 2 respectively, so that the two ends of the mounting hole 2 can be separated by the flexible heat insulation cylinder 5.

[0051] In this embodiment, a retaining ring 10 is also included. The retaining ring 10 is sleeved on the outer periphery of the sleeve 7. The inner diameter of the retaining ring 10 is consistent with the outer diameter of the sleeve 7, so that the retaining ring 10 can seal the gap between the sleeve 7 and the mounting hole 2. The retaining ring 10 is fitted and fixed to the end face of the mounting hole 2 near the flange 8. The retaining ring 10 and the chamber 3 can be fixedly connected by self-tapping screws or rivets.

[0052] The retaining ring 10 installed on the mounting hole 2 at the end of the sleeve 7 near the flange 8 can prevent heat, dust and impurities from entering the gap 6 between the sleeve 7 and the chamber 3.

[0053] In this embodiment, the inner ring of the sealing ring 4 is bent to form a bent portion 11. The bent portion 11 is attached to the outer circumferential surface of the rod. The bent portion 11 is attached to the surface of the rod, which can increase the contact area with the rod and make it easier to weld and fix to the rod.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sealing mechanism for an accumulation chain rod, applied in a mounting hole of a chamber, characterized in that, The sealing mechanism includes: A boom, one end of which passes through the mounting hole and is fixed. A sealing ring is fixedly attached to the boom. A flexible heat insulation cylinder is sleeved on the outside of the hanger rod, forming a gap between the flexible heat insulation cylinder and the hanger rod. One end of the flexible heat insulation cylinder is sealed to the sealing ring, and the other end is sealed to the outer periphery of the mounting hole.

2. The accumulating chain rod sealing mechanism according to claim 1, characterized in that, It also includes a sleeve, which is fitted and installed on the inner wall of the mounting hole. The first end of the sleeve near the sealing ring extends out of the mounting hole and is provided with a flange. The end of the flexible heat insulation cylinder away from the sealing ring is connected and fixed to the flange.

3. The accumulating chain rod sealing mechanism according to claim 2, characterized in that, The flexible heat insulation cylinder includes an extension portion and crimping portions disposed at both ends of the extension portion. The crimping portions are used for connection and fixation. The length of the extension portion is greater than the distance between the sealing ring and the flange.

4. The accumulating chain rod sealing mechanism according to claim 3, characterized in that, It also includes a pressing plate, wherein the pressing portions at both ends of the flexible heat insulation cylinder are attached to the sealing ring and the flange surface, and the pressing plate is sealed and pressed onto the pressing portions.

5. The accumulating chain rod sealing mechanism according to claim 2, characterized in that, The first end of the sleeve is sealed to the flange, and the second end of the sleeve is sealed to the fitting mounting hole.

6. The accumulating chain rod sealing mechanism according to claim 5, characterized in that, It also includes a retaining ring, which is sleeved on the outer periphery of the sleeve and is fitted and fixed to the end face of the mounting hole near the flange.

7. The accumulating chain rod sealing mechanism according to claim 1, characterized in that, The inner ring of the sealing ring is bent to form a bent portion, which is attached to the outer circumferential surface of the rod.

8. The accumulating chain rod sealing mechanism according to claim 1, characterized in that, The flexible heat insulation cylinder is an aluminum silicate foil heat insulation cylinder.

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