Loop chain scraper bending conveying box with automatic adjusting tensioning device

Abstract

The utility model relates to a loop chain scraper bending conveying box with an automatic adjusting tensioning device, which comprises a box body, at least two supporting rods which are arranged at intervals along the front-back direction are fixed between side plates of the box body, and a left side guide plate and a right side guide plate which are arranged at intervals are fixed on the supporting rods. The upper ends of the left guide plate and the right guide plate are used for being in contact fit with the bottom of a scraper on an upper side loop chain, a middle wear-resisting plate is assembled between the left wear-resisting upper lining plate and the right wear-resisting upper lining plate in the vertical direction in a guiding and moving mode, and the bottom of the middle wear-resisting plate is used for being in contact fit with the upper end of a lower side loop chain. And springs are arranged among the left wear-resistant upper lining plate, the right wear-resistant upper lining plate and the middle wear-resistant plate. The loop chain scraper bending conveying box with the automatic adjusting tensioning device is used for guiding the loop chain scraper so as to prevent the loop chain from turning over.

Description

Technical Field

[0001] The utility model relates to the field of chain scraper conveyors, in particular to a chain scraper conveyor curved conveying box with an automatic adjustment tensioning device. Background Art

[0002] Chain scraper is a conventional conveying equipment, which is widely used in the conveying of various bulk materials. For example, in the field of grain storage, chain scraper is usually used for conveying bulk grain materials.

[0003] The basic structure of a chain scraper is a frame with a front sprocket and a rear sprocket mounted on it. The front sprocket is a motor-driven active sprocket, and a chain is wound around the front and rear sprockets. A scraper is attached to the chain. The chain portion above the front and rear sprockets is usually called the upper chain, while the chain portion below the front and rear sprockets is called the lower chain. During normal operation, the chain rotates in a circular motion driven by the front sprocket, and the upper chain and scraper transport the grain from back to front within the trough.

[0004] The problem with the existing chain scraper is that in order to reduce energy consumption, the current scraper mostly uses lightweight chains. Therefore, when the scraper conveys grain in the curved section, due to the insufficient weight of the chain, the chain will not sag in the curved section of the scraper but will easily flip up and collide with the internal structure of the scraper, reducing the conveying efficiency of the chain scraper and increasing the maintenance cost of the chain scraper. Utility Model Content

[0005] The utility model aims to provide a chain scraper bending conveying box with an automatic tensioning device for guiding a chain scraper to avoid chain overturning.

[0006] In order to solve the above technical problems, the technical solution of a chain scraper bending conveyor box with an automatic tensioning device in the utility model is as follows:

[0007] The left and right guide plates are fixed to the left and right sides of the support rod and are used to contact and cooperate with the bottom of the scraper on the upper chain. The automatic adjusting tensioning device is provided on the support rod between the left and right guide plates, and the automatic adjusting tensioning device includes a left wear-resistant upper lining plate and a right wear-resistant upper lining plate, and an intermediate wear-resistant plate is assembled between the left and right wear-resistant upper lining plates and the right wear-resistant upper lining plates for guiding movement in the upper and lower directions. The bottom of the intermediate wear plate is used to contact and cooperate with the upper end of the lower chain, and a spring is provided between the left wear-resistant upper lining plate, the right wear-resistant upper lining plate and the intermediate wear plate.

[0008] Furthermore, the inner cavity of the box is an arc-shaped inner cavity consistent with the arc of the chain conveyor.

[0009] Furthermore, the top plate and the bottom plate are arranged horizontally, the top plate and the bottom plate are arc-shaped plates, and the side plates are arc-shaped plates with axes extending in the up-down direction.

[0010] Furthermore, the support rod is fixedly installed on the left wear-resistant upper lining plate and the right wear-resistant upper lining plate, and the left wear-resistant lower lining plate and the right wear-resistant lower side plate are respectively provided on the left and right sides of the lower end of the middle wear-resistant plate, and the spring is provided between the left wear-resistant upper side plate and the left wear-resistant lower lining plate and between the right wear-resistant upper lining plate and the right wear-resistant lower lining plate.

[0011] Furthermore, a vertically arranged screw is installed in the center of the spring, the upper end of the screw is threadedly connected to the corresponding wear-resistant upper side plate, and the lower end of the screw is guided and moved in conjunction with the corresponding wear-resistant lower side plate in the up and down directions.

[0012] Furthermore, upper waist-shaped holes extending in the up-down direction are provided on the left wear-resistant upper lining plate and the right wear-resistant upper lining plate, and upper bolts are installed between the middle wear-resistant plate and the corresponding upper waist-shaped holes.

[0013] Furthermore, lower waist-shaped holes extending in the up-down direction are provided on the left wear-resistant lower lining plate and the right wear-resistant lower lining plate, and lower bolts are installed between the middle wear-resistant plate and the corresponding lower waist-shaped holes.

[0014] The beneficial effects of the present invention are as follows: when the curved conveying box of the chain scraper in the present invention is in use, the curved conveying box of the chain scraper is placed in the curved section of the scraper or other positions where the chain is easily flipped up and deformed, the upper chain of the chain is located on the upper side of the automatic adjustment tensioning device, and the lower chain of the chain is located on the lower side of the automatic adjustment tensioning device. The scraper on the upper chain is supported and guided by the left guide plate and the right guide plate, and the lower chain is limited between the bottom of the middle wear-resistant plate and the bottom plate. In this way, the overall conveying posture of the chain is limited, and the chain and scraper will not flip up and collide with the internal structure of the scraper, thereby improving the conveying efficiency of the chain scraper and reducing the maintenance cost of the chain scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an illustrative and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0017] Figure 2 yes Figure 1 A top view of

[0018] Figure 3 yes Figure 2 AA sectional view;

[0019] Figure 4 yes Figure 1 Stereoscopic image of

[0020] Figure 5 This is a diagram of a usage state of an embodiment of the utility model;

[0021] 1. Top plate; 2. Left side plate; 3. Right side plate; 4. Bottom plate; 5. Side plate lining; 6. Automatically adjusting tensioning device; 7-1. Left guide plate; 7-2. Right guide plate; 8. Support rod; 61. Middle wear-resistant plate; 62. Left wear-resistant upper lining plate; 63. Screw; 64. Spring; 65. Left wear-resistant lower lining plate; 66. Right wear-resistant upper lining plate; 67. Upper bolt; 68. Right wear-resistant lower lining plate; 69. Lower bolt; 9. Upper waist-shaped hole; 10. Lower waist-shaped hole; 11. Upper ring chain; 12. Lower ring chain; 13. Scraper on the upper ring chain; 14. Nut. DETAILED DESCRIPTION

[0022] To facilitate understanding of the present invention, the present invention is described in more detail below with reference to the accompanying drawings and specific embodiments. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0023] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art in the field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0024] The embodiment of the chain scraper bending conveying box with automatic tensioning device in the utility model is as follows: Figures 1 to 5 As shown:

[0025] Before explaining the curved conveying box of the chain scraper, a brief explanation of the chain scraper in the prior art is first given. The chain scraper includes a frame on which a front sprocket and a rear sprocket are rotatably mounted, wherein the front sprocket is an active sprocket driven by a motor, and a chain is wound around the front sprocket and the rear sprocket, and a scraper is provided on the chain. The chain portion on the upper side of the front sprocket and the rear sprocket is usually called an upper chain 11, and the chain portion on the lower side of the front sprocket and the rear sprocket is called a lower chain 12, and the scraper connected to the upper chain is called a scraper 13 on the upper chain.

[0026] The curved conveying box of the chain scraper includes a box body, which includes a top plate 1, a bottom plate 4 and side plates arranged between the left and right ends of the top plate and the left and right ends of the bottom plate, that is, the side plates include a left side plate 2 arranged between the left end of the top plate and the left end of the bottom plate and a right side plate 3 arranged between the right end of the top plate and the right end of the bottom plate. The top plate, the bottom plate and the side plates form an inner cavity of the box for the upper chain and the lower chain to pass through in the front-to-back direction. In this embodiment, the box body is suitable for the curved conveying section of the chain scraper, so the box body is an arc-shaped structure as a whole, and the inner circle of the box is an arc-shaped inner cavity consistent with the arc of the chain conveying. The top plate and the bottom plate are arranged horizontally, the top plate and the bottom plate are arc-shaped plates, and the side plates are arc-shaped plates with axes extending in the up-down direction.

[0027] A side panel lining 5 is fixed to the right side of the left side panel and the left side of the right side panel. A plurality of support rods 8 arranged at intervals along the front-to-back direction are fixed between the left side panel and the right side panel. The support rods 8 are located on the upper side of the side panel lining.

[0028] A left guide plate 7-1 and a right guide plate 7-2 are fixed on the support rod at intervals on the left and right. The left guide plate 7-1 and the right guide plate 7-2 are both horizontal plates with lengths extending in the front-to-back direction. The upper plate surfaces of the left guide plate and the right guide plate are used to contact and slide with the bottom of the scraper on the upper chain.

[0029] An automatic adjustment tensioning device is provided on the support rod between the left and right guide plates. The automatic adjustment tensioning device includes a left wear-resistant upper lining plate 62 and a right wear-resistant upper lining plate 66 spaced apart from each other. The support rod 8 is fixedly mounted on the left and right wear-resistant upper lining plates 62 and 66. An intermediate wear-resistant plate 61 is installed between the left and right wear-resistant upper lining plates 62 and 66 to guide movement in the vertical direction. The bottom of the intermediate wear-resistant plate 61 is used to contact and cooperate with the upper end of the lower chain. A spring 64 is provided between the left and right wear-resistant upper lining plates and the intermediate wear-resistant plate to apply a downward force to the intermediate wear-resistant plate. The spring is a vertically arranged compression spring.

[0030] In this embodiment, a left wear-resistant lower lining plate 65 and a right wear-resistant lower side plate 68 are respectively provided on the left and right sides of the lower end of the middle wear-resistant plate, and a spring 64 is provided between the left wear-resistant upper side plate and the left wear-resistant lower lining plate and between the right wear-resistant upper lining plate and the right wear-resistant lower lining plate.

[0031] A vertically arranged screw 63 is installed in the center of the spring. The upper end of the screw 63 is threadedly connected to the corresponding wear-resistant upper side plate, and the lower end of the screw is guided and moved in the upper and lower directions with the corresponding wear-resistant lower side plate. The upper end of the screw 63 is threadedly connected to a nut 14. The spring is installed between the nut and the corresponding wear-resistant lower side plate. By screwing the nut and adjusting the height of the nut, the preload force of the spring can be adjusted.

[0032] The left wear-resistant upper lining plate and the right wear-resistant upper lining plate are provided with upper waist-shaped holes 9 extending in the vertical direction, and upper bolts 67 are installed between the middle wear-resistant plate and the corresponding upper waist-shaped holes. The left wear-resistant lower lining plate and the right wear-resistant lower lining plate are provided with lower waist-shaped holes 10 extending in the vertical direction, and lower bolts 69 are installed between the middle wear-resistant plate and the corresponding lower waist-shaped holes. During use, the middle wear-resistant plate can float up and down in the upper waist-shaped holes with the upper bolts.

[0033] When in use, the upper chain is located on the upper side of the automatic adjusting tensioning device, and the lower chain is located on the lower side of the automatic adjusting tensioning device. The scraper on the upper chain is slidably supported and matched with the upper plate surfaces of the left guide plate and the right guide plate, and the lower chain is limited between the middle wear-resistant plate and the bottom plate, that is, the upper end of the lower chain is in sliding contact with the bottom of the middle wear-resistant plate, and the lower end of the lower chain is in sliding contact with the upper end of the bottom plate, thereby ensuring that both the upper chain and the lower chain can circulate in a horizontal posture, avoiding the chain and the scraper from flipping over and colliding with the internal structure of the scraper, thereby improving the conveying efficiency of the chain scraper and reducing the maintenance cost of the chain scraper.

[0034] In the above description of this specification, unless otherwise expressly specified or limited, terms such as "fixed," "mounted," "connected," or "connected" should be understood broadly. For example, the term "connected" can refer to a fixed connection, a removable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal connection between two components or the interaction between two components. Therefore, unless otherwise expressly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0035] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0036] In addition, the terms "first" or "second" used in this specification to refer to numbers or ordinal numbers are used for descriptive purposes only and should not be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, "plurality" means at least two, such as two, three or more, etc., unless otherwise clearly specified.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A curved conveyor box for a chain scraper with an automatic tensioning device, characterized in that: The left and right guide plates are fixed to the side panels, and the upper ends of the left and right guide plates are used to contact and cooperate with the bottom of the scraper on the upper side chain. The left and right guide plates are installed on the support rod to guide and cooperate with the bottom of the scraper on the upper side chain.

2. The curved conveying box for a chain scraper according to claim 1, characterized in that: The inner cavity of the box is an arc-shaped inner cavity consistent with the arc of the chain conveyor.

3. The curved conveying box for a chain scraper according to claim 2, characterized in that: The top plate and the bottom plate are arranged horizontally, the top plate and the bottom plate are arc-shaped plates, and the side plates are arc-shaped plates with axes extending in the up-down direction.

4. The curved conveying box for a chain scraper according to any one of claims 1 to 3, characterized in that: The support rod is fixedly installed on the left wear-resistant upper lining plate and the right wear-resistant upper lining plate. The left wear-resistant lower lining plate and the right wear-resistant lower side plate are respectively provided on the left and right sides of the lower end of the middle wear-resistant plate. The spring is provided between the left wear-resistant upper side plate and the left wear-resistant lower lining plate and between the right wear-resistant upper lining plate and the right wear-resistant lower lining plate.

5. The curved conveying box for a chain scraper according to claim 4, characterized in that: A vertically arranged screw is installed in the center of the spring. The upper end of the screw is threadedly connected to the corresponding wear-resistant upper side plate, and the lower end of the screw is guided and moved in conjunction with the corresponding wear-resistant lower side plate in the up and down directions.

6. The curved conveying box for a chain scraper according to claim 5, characterized in that: Upper waist-shaped holes extending in the up-down direction are provided on the left wear-resistant upper lining plate and the right wear-resistant upper lining plate, and upper bolts are installed between the middle wear-resistant plate and the corresponding upper waist-shaped holes.

7. The curved conveying box for a chain scraper according to claim 5, characterized in that: The left wear-resistant lower lining plate and the right wear-resistant lower lining plate are provided with lower waist-shaped holes extending in the up-down direction, and lower bolts are installed between the middle wear-resistant plate and the corresponding lower waist-shaped holes.

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