Plate-type chain of pipe chain powder conveyor

Abstract

The utility model discloses a plate-type chain of a pipe chain powder conveyor, which is characterized in that an inner chain plate is provided with an open slot, a scraper is arranged in the open slot, the front and back movement of the scraper is limited through the open slot, the scraper comprises a first scraper and a second scraper which are detachably connected, and the first scraper and the second scraper are connected through a bolt and a nut. The chain does not need to be disassembled and assembled during disassembly, the scraper can be directly disassembled and assembled, disassembly is convenient, the scraper is not affected by the chain plate, and the scraper is convenient to replace.

Description

Technical Field

[0001] The utility model relates to a powder conveying device, in particular to a plate chain of a tube chain powder conveyor. Background Art

[0002] The tube chain conveyor is a continuous conveying device for bulk materials such as powders, granules, and small blocks. It can be transported in horizontal, inclined, or vertical combinations. It is commonly used in the fine chemical, pesticide, mineral, construction material, and food industries.

[0003] Patent ZL201810926224.3 discloses a plate chain for a tube chain powder conveyor, wherein the scraper is a split hoop structure or an integrated sleeve structure that is symmetrical up and down. Figure 4 As shown, due to the wear of the scraper, when the scraper needs to be replaced, when the head or tail manhole 6 of the tube chain powder conveyor is opened to replace the scraper, it can be seen that the first scraper 3 and the second scraper 4 are arranged on the single inner chain plate 2, and a connecting hole 1 is opened on the first scraper 3 and the second scraper 4, and a corresponding connecting hole 2 is opened on the inner chain plate 2. Fastening bolts 7 are inserted into the connecting holes 1 and 2, and nuts are screwed on to tighten them. The first scraper 3 and the second scraper 4 are fixed by bolts and nuts 5 on both sides. When disassembling, the bolts and nuts 5 are close to the first scraper 3 and the second scraper 4, and the fastening is The distance between the bolt 7 and the first scraper 3 and the second scraper 4 is small, and the wrench is inconvenient to use, which is not conducive to the rapid disassembly of the first scraper 3 and the second scraper 4; in Patent 201220066213.0, the inner chain plate and the scraper are connected as one, and are set as a split chain plate. The setting of the position of the bolt and nut makes it necessary to disconnect the entire plate chain due to the influence of the outer chain plate when the nut is disassembled. When the scraper is removed, a mechanical hoist is required to pull the two outer chain plates 1 at both ends of the disconnected plate chain back to a sufficiently small distance, so it is not easy to disassemble. Summary of the Invention

[0004] In order to solve the above problems, the present invention proposes and adopts the following technical solutions.

[0005] The utility model provides a kind of pipe chain powder conveyor plate chain, plate chain is installed in feed pipe, plate chain includes outer link and inner link arranged staggeredly in turn, outer link is two opposite outer link plates, inner link is single inner link plate, the end of inner link is hinged between the end of the two outer link plates of outer link, inner link plate is provided with detachable connection scraper, the side edge surface of the middle part of inner link plate is provided with opening slot perpendicular to the length direction of inner link plate, scraper is clamped at opening slot, the scraper includes detachable connection first scraper and second scraper, first scraper and second scraper are both fan-shaped structure with outer circumferential arc greater than half circle, the non-arc side of first scraper and second scraper is respectively provided with first opening, second opening in the middle, the non-circular arc side of first scraper and second scraper is also provided with extension, first scraper and second scraper are connected after splicing to form the scraper of circular structure, the extension of first scraper and second scraper is overlapped and is connected by fastener, and first opening of first scraper and opening slot of inner link plate are mutually embedded, with opening slot gap cooperation, the second opening of second scraper and the side edge surface profile of inner link plate not provided with opening slot are in line.

[0006] Preferably, the extension is provided with at least two groups of fasteners, the fasteners include positioning pins and positioning holes, and the positioning pins and the positioning holes are aligned with each other after the first scraper and the second scraper are spliced and connected.

[0007] Preferably, the extension is offset to one end of the non-circular arc side relative to the first opening of the first scraper or the second opening of the second scraper.

[0008] Preferably, the extension of the first scraper is thinned by cutting to form a first ladder plate relative to the first scraper, and the extension of the second scraper is thinned by cutting to form a second ladder plate relative to the second scraper, the first ladder plate forms a stepped structure with increasing thickness relative to the first scraper, or the second ladder plate forms a stepped structure with increasing thickness relative to the second scraper, and the profiles of the first ladder plate and the second ladder plate are coupled and overlapped with each other after the first scraper and the second scraper are spliced and connected.

[0009] Preferably, the first ladder plate is provided with two positioning pins, the second ladder plate is provided with two positioning holes, and the two positioning pins of the first ladder plate are embedded in the two positioning holes of the second ladder plate and are fastened by nuts after the first scraper and the second scraper are spliced and connected.

[0010] Preferably, the scraper is made of nylon or plastic material, or a metal skeleton material wrapped with nylon / plastic.

[0011] Compared with the prior art, the utility model has the beneficial effects that: by setting the scraper as two detachably connected first scrapers and second scrapers, the two are connected by bolts and nuts, since the connection is close to the outer edge on the scraper, the scraper can be directly disassembled without disassembling the inner link plate, which is convenient and is not affected by the fasteners between the two ends of the inner link plate and the outer link plate, facilitating the replacement of the scraper, and the opening slot provided on the inner link plate prevents the scraper from moving back and forth along the inner link plate during feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Figure 1 is a schematic diagram of the structure of this utility model;

[0013] Figure 2 Schematic diagram of the first scraper structure;

[0014] Figure 3 Schematic diagram of the second scraper structure;

[0015] Figure 4 This is a schematic diagram of the plate chain status after the head or tail manhole of the tube chain powder conveyor is opened;

[0016] Figure 5 Schematic diagram of the structure of the first scraper and the second scraper;

[0017] Figure 6 For Figure 2 Schematic diagram of the inner link plate cross section when viewed from the left or right. DETAILED DESCRIPTION

[0018] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the present invention. To better illustrate the present embodiment, some components in the accompanying drawings may be omitted, enlarged, or reduced in size, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the accompanying drawings. The positional relationships depicted in the accompanying drawings are for illustrative purposes only and should not be construed as limiting the present invention. The present invention will be further described in detail below in conjunction with specific embodiments.

[0019] like Figures 1-3 As shown, a plate chain of a tube chain powder conveyor includes an outer link 1 and an inner link 2 hinged to each other, the outer link 1 and the inner link 2 are arranged alternately in sequence, the outer link 1 is two opposite outer link plates 101, the inner link 2 is a single inner link plate 201, the end of the inner link 2 is hinged between the ends of the two outer link plates 101 of the outer link 1, a detachable scraper is provided on the inner link plate 201, and an open groove 202 is further provided on the side edge surface of the middle part of the inner link plate 201, the open groove 202 is perpendicular to the length direction of the inner link plate 201, the open groove 202 can be arranged around the side edge surface of the inner link plate 201, or be arranged on three or two side edges of the inner link plate 201, or be arranged on one side edge surface of the inner link plate 201, the scraper is clamped at the open groove 202 and cannot move back and forth along the inner link plate 201.

[0020] The scraper includes a first scraper 3 and a second scraper 4. The first scraper 3 and the second scraper 4 are both constructed as a fan-shaped structure with an outer arc greater than a semicircle. The non-arc side of the first scraper 3 (i.e. Figure 2 The left side of the second scraper 4 is provided with a first opening 301 in the center.Figure 3 The second opening 401 is centrally arranged on the right side of the second scraper 4, Figure 3 The second scraper 4 is opposite Figure 3 The first scraper 3 and the second scraper 4 form a circular structure after the paper surface is turned over and the first scraper 3 is spliced and connected with the second scraper 4. The non-circular arc side of the first scraper 3 and the second scraper 4 is also provided with an extension part, see Figure 2 The extension part of the first scraper 3 is offset to the upper end of the non-circular arc side relative to the first opening 301 of the first scraper 3, see Figure 3 The extension part of the second scraper 4 is offset to the upper end of the non-circular arc side relative to the second opening 401 of the second scraper 4, see Figure 2 The extension part of the first scraper 3 is thinned by cutting to form a first ladder plate 302 relative to the first scraper 3. The first ladder plate 302 forms a stepped structure with increasing thickness relative to the first scraper 3, see Figure 3 The extension part of the second scraper 4 is thinned by cutting to form a second ladder plate 402 relative to the second scraper 4. The second ladder plate 402 forms a stepped structure with increasing thickness relative to the second scraper 4.

[0021] The first ladder plate 302 is provided with at least two groups of fasteners, and the second ladder plate 402 is provided with at least two groups of fasteners. The fasteners include positioning pins and positioning holes. If two positioning pins 303 are arranged on the first ladder plate 302, two positioning holes 403 are arranged on the second ladder plate 402. After the first scraper 3 and the second scraper 4 are spliced and connected, the two positioning pins 303 of the first scraper 3 are embedded in the two positioning holes 403 of the second scraper 4, and are fastened by nuts. The positioning pins and the positioning holes are aligned with each other. After the first scraper 3 and the second scraper 4 are spliced and connected, the profiles of the first ladder plate 302 and the second ladder plate 402 are coupled and overlapped with each other. Even if only one positioning pin and one positioning hole are fastened by one nut, the first scraper 3 and the second scraper 4 are also fastened firmly and cannot be separated.

[0022] From Figure 2 The cross section of the inner chain plate 201 is as shown in the left view or the right view Figure 6 The opening groove 202 is located on the upper side of the inner chain plate 201. When the first scraper 3 and the second scraper 4 are spliced and connected, the first scraper 3 and the first opening 301 are embedded in the opening groove 202 of the inner chain plate 201. The opening groove 202 of the inner chain plate 201 is embedded in the first opening 301 of the first scraper 3. The first opening 301 of the first scraper 3 is gap-fitted with the opening groove 202. The second opening 401 of the second scraper 4 is matched with the profile of the side edge of the inner chain plate 201 which is not provided with the opening groove 202. When the first scraper 3 is installed, the first scraper 3 is embedded in the inner chain plate 201 with the opening groove 202 through the plug-in action. When the second scraper 4 is installed, after the second opening 401 of the second scraper 4 is close to the side edge of the inner chain plate 201, the second scraper 4 is moved along the length direction of the inner chain plate 2. The profile of the second ladder plate 402 of the second scraper 4 can be matched on the first ladder plate 302 of the first scraper 3, which facilitates the alignment and embedding of the positioning pins and the positioning holes.

[0023] Further, the scraper is made of nylon or plastic material, or nylon / plastic wrapped metal skeleton material. It is advantageous to use the pipe chain powder conveyor to transport flammable particles, such as coarse anthracene crystals, to prevent the generation of sparks.

[0024] Further, in the tail manhole 6 shown, the fasteners of the first scraper 3 and the second scraper 4 are close to the outer edge of the scraper, away from the hinge end bolts 7 of the inner chain plate 2 and the outer chain plate 1, and the rotation direction of the nut on the fastener of the first scraper 3 and the second scraper 4 is parallel to the scraper surface, so that the wrench can be operated on the nut by swinging at a large angle around the axis of the fastener, thereby improving the speed of disassembling the nut and facilitating the disassembly and installation of the scraper. Figure 4 As shown in the figure, when the scraper of the utility model is used, the gap after the splicing connection of the first scraper 3 and the second scraper 4 is towards the left side or the right side or perpendicular to the upper and lower edges of the tail manhole 6, which does not affect the large-angle swinging of the wrench around the axis of the fastener to operate the nut.

[0025] Figure 4 As shown in the figure, when the scraper of the utility model is used, the gap after the splicing connection of the first scraper 3 and the second scraper 4 is towards the left side or the right side or perpendicular to the upper and lower edges of the tail manhole 6, which does not affect the large-angle swinging of the wrench around the axis of the fastener to operate the nut.

[0026] As another embodiment of the utility model, as shown in the figure, Figure 5 , the first ladder plate 302 of the first scraper 3 can be offset to the upper and lower ends of the non-circular arc side relative to the first opening 301 of the first scraper 3, that is, two first ladder plates 302 are provided, and the second ladder plate 402 of the second scraper 4 is offset to the upper and lower ends of the non-circular arc side relative to the second opening 401 of the second scraper 4, that is, two second ladder plates 402 are provided.​

Claims

1. A plate chain of a pipe chain powder conveyor, the plate chain being installed in a conveying pipe, the plate chain comprising outer links (1) and inner links (2) arranged alternately in sequence, the outer link (1) being two opposite outer link plates (101), the inner link (2) being a single inner link plate (201), the end of the inner link (2) being hinged between the ends of the two outer link plates (101) of the outer link (1), characterized in that, The inner chain plate (201) is provided with a detachable connecting scraper, and the side edge surface of the middle part of the inner chain plate (201) is provided with an opening slot (202) perpendicular to the length direction of the inner chain plate (201), and the scraper is clamped at the opening slot (202). The scraper includes a detachable first scraper (3) and a second scraper (4), both of which are fan-shaped structures with an outer peripheral arc larger than a semicircle. The non-arc sides of the first scraper (3) and the second scraper (4) are respectively provided with a first opening (301) and a second opening (401) arranged in the middle. The non-arc sides of the first scraper (3) and the second scraper (4) are also provided with an extension part. After the first scraper (3) and the second scraper (4) are connected, the extension parts of the first scraper (3) and the second scraper (4) are overlapped and connected by fasteners. The first opening (301) of the first scraper (3) and the opening slot (202) of the inner chain plate (201) are mutually embedded and gap-fitted with the opening slot (202). The second opening (401) of the second scraper (4) is in profile conformity with the side edge surface of the inner chain plate (201) without the opening slot (202).

2. A tubular chain powder conveyor plate chain according to claim 1, characterized in that The extension part is provided with at least two groups of fasteners, including positioning pins and positioning holes. After the first scraper (3) and the second scraper (4) are connected, the positioning pins and the positioning holes are aligned with each other.

3. A tubular chain powder conveyor plate chain according to claim 1, characterized in that The extension part is offset to one end of the non-arc side relative to the first opening (301) of the first scraper (3) or the second opening (401) of the second scraper (4).

4. A tubular chain powder conveyor plate chain according to claim 1, characterized in that The extension part of the first scraper (3) is thinned by cutting relative to the first scraper (3) to form a first ladder plate (302), and the extension part of the second scraper (4) is thinned by cutting relative to the second scraper (4) to form a second ladder plate (402). The first ladder plate (302) relative to the first scraper (3) or the second ladder plate (402) relative to the second scraper (4) forms a stepped structure with increasing thickness. After the first scraper (3) and the second scraper (4) are connected, the profiles of the first ladder plate (302) and the second ladder plate (402) are coupled and overlapped with each other.

5. A tubular chain powder conveyor plate chain according to claim 4, characterized in that The first ladder plate (302) is provided with two positioning pins (303), and the second ladder plate (402) is provided with two positioning holes (403). After the first scraper (3) and the second scraper (4) are connected, the two positioning pins (303) of the first scraper (3) are embedded in the two positioning holes (403) of the second scraper (4) and are fastened by nuts.

6. A tubular chain powder conveyor plate chain according to claim 1, characterized in that The scraper is made of nylon or plastic material, or a metal skeleton material wrapped with nylon / plastic.

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