Improved drying cylinder adding ring seal

Abstract

The utility model discloses an improved drying cylinder adding ring seal which comprises a drying cylinder driven by an external power structure to rotate, a sealing cover is arranged on the drying cylinder in a sleeving mode, the drying cylinder and the sealing cover rotate relatively, the sealing cover is provided with a first curved surface and a second curved surface, and bus extension lines of the first curved surface and the second curved surface intersect and form a first preset included angle. The opening direction of the first preset included angle faces the drying cylinder, and sealing pieces are arranged on the first curved surface and the second curved surface, so that the contact area between the sealing pieces and the drying cylinder can be increased by arranging the sealing pieces on the first curved surface and the second curved surface, a gap between the drying cylinder and the sealing cover can be better sealed, and material leakage is avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of road construction machinery, and particularly relates to an improved seal for a drying drum addition ring. Background Art

[0002] With the increasing modern road construction and the increasing amount of renovation work on old roads, more and more recycled asphalt concrete materials (recycled materials) are being generated and reused. Using a drying drum addition ring to add recycled materials is a feature of our company's recycling equipment. Therefore, it is particularly important to improve the technology of the drying drum addition ring.

[0003] In the existing recycled drying drum addition ring during use, there is a gap between the drying drum and the recycling ring, resulting in material leakage. Therefore, we propose an improved seal for the drying drum addition ring. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide an improved seal for a drying drum addition ring.

[0005] In a first aspect, the present application provides an improved seal for a drying drum addition ring, including:

[0006] A drying drum, which is a hollow cylindrical structure and is driven to rotate by an external power structure;

[0007] A seal cover, which is sleeved on the outer wall of the drying drum and rotates relative to the drying drum. The two sides of the seal cover respectively have a first curved surface and a second curved surface. The generatrices of the first curved surface and the second curved surface intersect and form a first preset angle. The opening direction of the first preset angle faces the drying drum. Sealing members are arranged on both the first curved surface and the second curved surface, and the end of the sealing member close to the drying drum is in sliding contact with the outer wall of the drying drum for sealing the space between the drying drum and the seal cover.

[0008] According to the technical solution provided by the embodiment of the present application, a pressing plate is arranged on the side wall of the sealing member away from the seal cover for stably mounting the sealing member on the seal cover.

[0009] According to the technical solution provided by the embodiment of the present application, a material receiving groove is formed in the circumferential inner wall of the seal cover. The material receiving groove includes a first groove and a second groove that are connected in the radial direction of the drying drum. The first groove is relatively close to the drying drum and is connected to the inside of the drying drum. The projection of the second groove in the radial direction of the drying drum is located within the projection range of the first groove in the radial direction of the drying drum.

[0010] According to the technical solution provided by the embodiment of the present application, a feeding port is provided on the sealing cover, which is communicated with the second groove for adding materials into the second groove.

[0011] According to the technical solution provided by the embodiment of the present application, a feeding part is provided on the circumferential outer wall of the drying cylinder, which corresponds to the second groove and is used for guiding the materials inside the second groove into the drying cylinder.

[0012] According to the technical solution provided by the embodiment of the present application, a scraping part is provided on the outer wall of the drying cylinder. The scraping part corresponds to the first groove and rotates with the drying cylinder for scraping the materials adhered to the inner wall of the first groove.

[0013] According to the technical solution provided by the embodiment of the present application, the scraping part includes two groups of scraper groups. The two groups of scraper groups are symmetrically arranged on both sides of the feeding part. Each scraper group includes a plurality of scrapers. The plurality of scrapers are circumferentially and evenly arranged on the outer wall of the drying cylinder. The extension lines of the axes of the scrapers of the two groups of scraper groups intersect to form a second preset angle. The opening direction of the second preset angle faces the rotation direction of the drying cylinder. The two groups of scraper groups cooperate to guide the scraped materials into the feeding part.

[0014] In summary, the present technical solution specifically discloses an improved drying cylinder adding ring seal, including a drying cylinder driven to rotate by an external power structure. A sealing cover is sleeved on the drying cylinder. The drying cylinder and the sealing cover rotate relatively. The sealing cover has a first curved surface and a second curved surface. The extension lines of the generatrices of the first curved surface and the second curved surface intersect and form a first preset angle. The opening direction of the first preset angle faces the drying cylinder. Sealing members are arranged on both the first curved surface and the second curved surface. Thus, the sealing members can increase the contact area with the drying cylinder by being installed on the first curved surface and the second curved surface, so as to better seal the gap between the drying cylinder and the sealing cover and avoid material leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objects and advantages of the present application will become more obvious:

[0016] Figure 1 It is a front view of an improved drying cylinder adding ring seal.

[0017] Figure 2 It is a side view of an improved drying cylinder adding ring seal.

[0018] Figure 3 It is Figure 1 an enlarged view of part I in

[0019] Reference numerals in the figures: 1, drying cylinder; 2, sealing cover; 3, first curved surface; 4, second curved surface; 5, seal; 6, pressing plate; 7, first groove; 8, second groove; 9, feeding port; 10, scraper; 11, material receiving box; 12, material receiving plate; 13, adding ring. Detailed implementation manners

[0020] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention, rather than limiting the invention. In addition, it should be noted that, for the sake of description, only the parts related to the invention are shown in the drawings.

[0021] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0022] Embodiment 1

[0023] Please refer to Figures 1 to 3 As shown, an improved sealing of the adding ring of the drying cylinder. The drying cylinder 1 is a hollow cylindrical structure and is driven to rotate by an external power structure;

[0024] The outer wall of the drying cylinder 1 is provided with a feeding part. The feeding part includes a plurality of material leakage holes. The plurality of material leakage holes are circumferentially and uniformly arranged on the outer wall of the drying cylinder 1, and the material leakage holes are communicated with the inside of the drying cylinder 1;

[0025] The feeding part further includes a plurality of material receiving plates 12 corresponding to the material leakage holes one by one. The material receiving plate 12 includes a first section and a second section fixedly connected. A third preset angle is formed between the first section and the second section. The third preset angle is an obtuse angle, and its opening direction faces the rotation direction of the drying cylinder 1. Among them, one end of the first section far from the second section is fixedly connected to the hole wall of the material leakage hole. Optionally, it is located at the midpoint of the hole wall of the material leakage hole; the second section extends away from the drying cylinder 1;

[0026] The feeding part further includes two adding rings 13. The two adding rings 13 are both fixedly sleeved on the outer wall of the drying cylinder 1 and are respectively located on both sides of the material leakage hole. The two opposite side walls of the material receiving plate 12 are fixedly connected to the side walls of the two adding rings 13 close to each other;

[0027] The sealing cover 2 is sleeved on the outer wall of the drying cylinder 1 and rotates relative to the drying cylinder 1;

[0028] A material receiving groove is formed on the circumferential inner wall of the sealing cover 2, and a feeding port 9 is provided on the sealing cover 2. The feeding port 9 is communicated with the material receiving groove, and the material is added from the feeding port 9 and then enters the material receiving groove;

[0029] The material storage tank includes a first groove 7 and a second groove 8 that are radially connected to the drying cylinder 1. Among them, the first groove 7 is relatively close to the drying cylinder 1, and the radial projection of the second groove 8 along the drying cylinder 1 falls within the radial projection range of the first groove 7 along the drying cylinder 1. One end of the second section away from the first section penetrates through the first groove 7 and extends into the second groove 8. The material is added from the feeding port 9 and then enters the second groove 8. The material can be caught by the material receiving plate 12 that rotates with the drying cylinder 1, and then the material enters the interior of the drying cylinder 1 through the material leakage holes along the material receiving plate 12.

[0030] To ensure the sealing performance between the drying cylinder 1 and the sealing cover 2, a sealing member 5 is provided on the sealing cover 2. The sealing member 5 can be in sliding contact with the drying cylinder 1, thereby preventing the material from leaking out through the gap between the sealing member 5 and the drying cylinder 1 after being added from the feeding port 9.

[0031] Specifically, both sides of the sealing cover 2 have a first curved surface 3 and a second curved surface 4. The shapes of the first curved surface 3 and the second curved surface 4 are both the curved surfaces of a frustum of a cone. The extension lines of the generatrices of the first curved surface 3 and the second curved surface 4 intersect and form a first preset angle, and the opening direction of the first preset angle faces the drying cylinder 1.

[0032] Sealing members 5 are provided on both the first curved surface 3 and the second curved surface 4. The end of the sealing member 5 close to the drying cylinder 1 is in sliding contact with the outer wall of the drying cylinder 1. By providing the sealing members 5 on the first curved surface 3 and the second curved surface 4, it is ensured that the sealing cover 2 and the sealing members 5 cooperate to completely cover the feeding part, and the settings of the first curved surface 3 and the second curved surface 4 can increase the contact area between the sealing members 5 and the drying cylinder 1, improve the sealing performance, and further prevent the material from leaking out.

[0033] Furthermore, a pressing plate 6 is provided on the side wall of the sealing member 5 away from the sealing cover 2. Bolts pass through the first curved surface 3 or the second curved surface 4, the sealing member 5, and the pressing plate 6 from the inside of the sealing cover 2, thereby firmly installing the sealing member 5, including that the sealing member 5 can be in contact with the drying cylinder 1, further improving the sealing performance.

[0034] A scraping part is provided on the outer wall of the drying cylinder 1. The scraping part is provided corresponding to the first groove 7 and rotates with the drying cylinder 1 for scraping the material adhered to the inner wall of the first groove 7.

[0035] Specifically, the scraping part includes two sets of scraper groups, which are symmetrically arranged on both sides of the feeding part. Each scraper group includes a number of scrapers 10, and the number of scrapers 10 are circumferentially and evenly fixedly connected to the outer wall of the drying cylinder 1. The extension lines of the axes of the scrapers 10 of the two scraper groups intersect and form a second preset angle. The opening direction of the second preset angle faces the rotation direction of the drying cylinder 1. Through the cooperation of the scrapers 10 of the two scraper groups, during the rotation of the drying cylinder 1, the materials on the inner wall of the first groove 7 away from the drying cylinder 1 can be scraped off, and the materials can move along the surface of the scraper 10, so as to guide the materials into the feeding part and enter the inside of the drying cylinder 1 through the receiving plate 12 and the leakage holes.

[0036] Furthermore, a number of receiving boxes 11 are arranged on the inner wall of the drying cylinder 1. The number of receiving boxes 11 corresponds to the number of leakage holes one by one. Each receiving box 11 has a first opening and a second opening. The first opening communicates with the leakage hole, and the second opening communicates with the inside of the drying cylinder 1. The materials enter the first opening from the leakage hole, then enter the receiving box, and then fall into the inside of the drying cylinder 1 from the second opening.

[0037] Working principle: The drying cylinder 1 is driven to rotate by an external power structure, and materials are added into the material receiving groove from the feeding port 9. The materials first enter the second groove 8, and then enter the first groove 7. Through the rotating material receiving function of the receiving plate 12, the materials can be guided into the leakage holes, and then the materials enter the inside of the drying cylinder 1;

[0038] Through the scraper 10 rotating with the drying cylinder 1, the materials on the inner wall of the first groove 7 away from the drying cylinder 1 can be scraped off. And through the cooperation of the scrapers 10 of the two scraper groups, the scraped materials can move along the surface of the scraper 10, then fall on the receiving plate 12, and finally enter the inside of the drying cylinder 1. Thus, it can avoid the materials from sticking in the material receiving groove and avoid waste;

[0039] By providing the sealing members 5 on the first curved surface 3 and the second curved surface 4 of the sealing cover 2, the feeding part can be completely covered, and the contact area between the sealing member 5 and the drying cylinder 1 can be increased. Through the pressing plate 6, the sealing member 5 and the sealing cover 2 can be firmly connected, further improving the sealing effect, avoiding the leakage of materials, and further avoiding the waste of materials.

[0040] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, but also covers other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. An improved drying cylinder adding ring seal, characterized in that, Comprising: A drying cylinder (1), the drying cylinder (1) being of a hollow cylindrical structure and being driven to rotate by an external power structure; A sealing cover (2), the sealing cover (2) being sleeved on the outer wall of the drying cylinder (1) and rotating relative to the drying cylinder (1). The two sides of the sealing cover (2) respectively have a first curved surface (3) and a second curved surface (4). The generatrices of the first curved surface (3) and the second curved surface (4) intersect and form a first preset angle. The opening direction of the first preset angle faces the drying cylinder (1). Sealing members (5) are arranged on both the first curved surface (3) and the second curved surface (4), and the end of the sealing member (5) close to the drying cylinder (1) is in sliding contact with the outer wall of the drying cylinder (1) for sealing the space between the drying cylinder (1) and the sealing cover (2).

2. An improved drying cylinder adding ring seal according to claim 1, characterized in that, A pressing plate (6) is arranged on the side wall of the sealing member (5) away from the sealing cover (2) for stably mounting the sealing member (5) on the sealing cover (2).

3. An improved drying cylinder addition ring seal according to claim 1, characterized in that, A material receiving groove is formed in the circumferential inner wall of the sealing cover (2). The material receiving groove includes a first groove (7) and a second groove (8) that are connected in the radial direction of the drying cylinder (1). The first groove (7) is relatively close to the drying cylinder (1) and is connected to the inside of the drying cylinder (1). The projection of the second groove (8) in the radial direction of the drying cylinder (1) is located within the projection range of the first groove (7) in the radial direction of the drying cylinder (1).

4. An improved drying cylinder adding a ring seal according to claim 3, characterized in that, A feeding port (9) is arranged on the sealing cover (2), which is connected to the second groove (8) for adding materials into the second groove (8).

5. An improved drying cylinder adding ring seal according to claim 4, characterized in that, A feeding part is arranged on the outer circumferential wall of the drying cylinder (1), which corresponds to the second groove (8) for guiding the materials inside the second groove (8) into the drying cylinder (1).

6. An improved drying cylinder addition ring seal according to claim 5, characterized in that, A scraping part is arranged on the outer wall of the drying cylinder (1). The scraping part corresponds to the first groove (7) and rotates with the drying cylinder (1) for scraping the materials adhered to the inner wall of the first groove (7).

7. An improved drying cylinder addition ring seal according to claim 6, characterized in that, The scraping part includes two groups of scraper groups. The two groups of scraper groups are symmetrically arranged on both sides of the feeding part. Each scraper group includes a plurality of scrapers (10). The plurality of scrapers (10) are circumferentially and evenly arranged on the outer wall of the drying cylinder (1). The extension lines of the axes of the scrapers (10) of the two groups of scraper groups intersect to form a second preset angle. The opening direction of the second preset angle faces the rotation direction of the drying cylinder (1). The two groups of scraper groups cooperate to guide the scraped materials into the feeding part.

Images