A scraper type slag scooping machine

Abstract

The present invention relates to the technical field of scraper conveyors, and in particular to a scraper type slag scooping machine, comprising a shell, a material receiving plate is arranged inside the shell, a driving shaft and a driven shaft are rotatably arranged at the front and rear ends of the shell respectively, a chain assembly is wound around the driving shaft and the driven shaft, the chain assembly comprises two first chains and a second chain, the second chain is located in the middle of the two first chains, a plurality of rotating shafts are arranged at intervals front and back on the second chain, two telescopic scrapers are hinged on the rotating shaft, the telescopic scrapers each comprise a first scraper and a second scraper slidably connected, the first scraper is rotatably arranged on the rotating shaft, and each second scraper is fixedly connected to a first chain respectively; the telescopic scraper slides along the surface of the material receiving plate, and when the slag driven by the telescopic scraper increases, the length of the telescopic scraper becomes longer, and at the same time, the rotation of the telescopic scraper can drive the first chain to be tightened, thereby increasing the contact pressure between the telescopic scraper and the surface of the material receiving plate, thereby avoiding material leakage.

Description

Technical Field

[0001] The invention relates to the technical field of scraper conveyors, in particular to a scraper type slag scooping machine. Background Art

[0002] Scraper type slag remover is used to separate solid materials of a certain particle size from a liquid and solid mixture. Scraper type slag remover is a scraper conveyor, which uses a chain to pull the scraper to move in the transport trough to transport the slag.

[0003] However, when the existing scraper slag dredger is transporting slag, leakage easily occurs at the position where the scraper contacts the transport trough, thereby affecting the transport efficiency of the slag. Summary of the invention

[0004] Based on this, it is necessary to provide a scraper type slag scoop to address the technical problem that the current scraper type slag scoop is prone to material leakage.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A scraper type slag scooping machine comprises a shell, a material receiving plate is arranged inside the shell, the material receiving plate is placed horizontally, a driving shaft and a driven shaft are rotatably arranged at the front and rear ends of the shell respectively, a chain assembly is wound around the driving shaft and the driven shaft, the chain assembly comprises two first chains and a second chain, the first chain and the second chain are arranged in parallel and both extend in the front-back direction, the second chain is located in the middle of the two first chains, a plurality of rotating shafts are arranged at intervals in the front and back of the second chain, the rotating shaft extends in the up-down direction, two telescopic scrapers are hinged on the rotating shaft, and the telescopic scrapers are perpendicular to the material receiving plate; the two telescopic scrapers are symmetrically arranged about the rotating shaft, each telescopic scraper comprises a first scraper and a second scraper connected in a sliding manner, the first scraper is rotatably arranged on the rotating shaft, and each second scraper is fixedly connected to a first chain respectively;

[0007] The telescopic scraper slides along the surface of the material receiving plate. When the amount of slag driven by the telescopic scraper increases, the moving speed of the second chain is lower than the moving speed of the first chain, causing the telescopic scraper to rotate around the rotating shaft, and then the first scraper and the second scraper slide relative to each other, causing the length of the telescopic scraper to increase. At the same time, the rotation of the telescopic scraper can drive the first chain to tighten, thereby increasing the contact pressure between the telescopic scraper and the surface of the material receiving plate.

[0008] Furthermore, the first chain comprises elliptical connecting rings and chain rings which are alternately arranged, the elliptical connecting ring is fixedly connected to the second scraper, and the chain ring is used to connect two adjacent elliptical connecting rings.

[0009] Furthermore, when the first chain moves forward and backward, the plane where the elliptical connecting ring is located is parallel to the horizontal plane, the plane where the chain ring is located is perpendicular to the horizontal plane, and the length of the elliptical connecting ring extends in the front-to-back direction.

[0010] Furthermore, the driving shaft and the driven shaft are both provided with two first sprockets and one second sprocket, the first sprocket corresponds to the first chain and can drive the first chain to rotate, and the second sprocket corresponds to the second chain and can drive the second chain to rotate.

[0011] Furthermore, a return coil spring is provided between the second sprocket on the driving shaft and the driving shaft, and when the moving speed of the second chain is lower than the moving speed of the first chain, the return coil spring is compressed to store force.

[0012] Furthermore, one of the first scraper and the second scraper is provided with a slide groove, and the other is provided with a guide bar, the slide groove extends in a horizontal direction, and the guide bar is slidably matched with the slide groove.

[0013] Furthermore, a plurality of baffles are provided on the second scraper, the plurality of baffles are spaced apart in the horizontal direction, and the baffles are perpendicular to the second scraper.

[0014] Furthermore, a feed port is provided at the front end of the shell, and slag can fall to the front end of the receiving plate through the feed port. An opening is provided at the rear end of the receiving plate, and a discharge port is provided at the rear end of the shell, and the discharge port corresponds to the opening up and down.

[0015] Furthermore, a limiting structure is provided on the shell, and the limiting structure includes a first limiting plate and a second limiting plate, the first limiting plate is fixedly arranged on the shell, the second limiting plate and the first limiting plate are connected to form a sliding cavity, and the first chain slides back and forth along the sliding cavity.

[0016] Furthermore, a notch is provided on the side of the elliptical connecting ring facing the second scraper, and the notch is provided with two front and rear clamping blocks, and the two clamping blocks clamp and fix the front and rear side surfaces of the second scraper.

[0017] The beneficial effects of the present invention are:

[0018] The scraper type slag dredger provided by the present invention rotates around the rotating shaft and extends when the slag driven by the telescopic scraper increases. Since the bearing area of ​​the telescopic scraper increases, the telescopic scraper can carry more slag. At the same time, the contact area between the telescopic scraper and the receiving plate increases. By tightening the first chain, the contact pressure between the telescopic scraper and the surface of the receiving plate is increased. In this way, the clamping force between the extended telescopic scraper and the receiving plate can be ensured to avoid leakage of material.

[0019] Secondly, since three chains are provided, compared with only two chains in the prior art, the pulling force on the telescopic scraper can be increased, so that the telescopic scraper can pull the slag more easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the overall structure of a scraper type slag remover provided by an embodiment of the present invention;

[0021] Figure 2 A top view of a scraper type slag dredger provided in one embodiment of the present invention;

[0022] Figure 3 for Figure 2 Middle AA section view;

[0023] Figure 4 for Figure 3 Enlarged view of point C in the middle;

[0024] Figure 5 for Figure 2 Middle BB view;

[0025] Figure 6 for Figure 5 Enlarged view of point D in the middle;

[0026] Figure 7 for Figure 3 Middle FF section view;

[0027] Figure 8 for Figure 7 Enlarged view of point E in the middle.

[0028] in:

[0029] 101. feed port; 102. driven shaft; 103. housing; 104. driving shaft; 105. discharge port; 106. receiving plate; 1071. first limit plate; 1072. second limit plate; 108. second chain; 109. telescopic scraper; 1091. rotating shaft; 1092. first scraper; 1093. second scraper; 1094. slideway; 1095. baffle; 110. first sprocket; 111. first chain; 1111. elliptical connecting ring; 112. second sprocket; 1121. fixing cylinder; 1122. return coil spring. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] The serial numbers assigned to components in this text, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The terms "connected" and "coupled" as used in this application, unless otherwise specifically stated, both include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0032] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0033] Such as Figures 1 to 8As shown, a scraper type slag dredger provided by an embodiment of the present invention comprises a shell 103, a material receiving plate 106 is arranged inside the shell 103, the material receiving plate 106 is placed horizontally, a driving shaft 104 and a driven shaft 102 are rotatably arranged at the front and rear ends of the shell 103 respectively, a chain assembly is wound around the driving shaft 104 and the driven shaft 102, the chain assembly comprises two first chains 111 and a second chain 108, the first chain 111 and the second chain 108 are arranged in parallel and both extend in the front-rear direction, the second chain 108 is located in the middle of the two first chains 111, a plurality of rotating shafts 1091 are arranged at intervals in front and back on the second chain 108, the rotating shafts 1091 extend in the up-down direction, two telescopic scrapers 109 are hinged on the rotating shafts 1091, and the telescopic scrapers 109 are perpendicular to the material receiving plate 106; The two telescopic scrapers 109 are symmetrically arranged about the rotating shaft 1091, and each telescopic scraper 109 includes a first scraper 1092 and a second scraper 1093 which are slidably connected. The first scraper 1092 is rotatably arranged on the rotating shaft 1091, and each second scraper 1093 is fixedly connected to a first chain 111 respectively; the telescopic scraper 109 slides along the surface of the receiving plate 106. When the slag driven by the telescopic scraper 109 increases, the moving speed of the second chain 108 is less than the moving speed of the first chain 111, so that the telescopic scraper 109 rotates around the rotating shaft 1091, and then the first scraper 1092 and the second scraper 1093 slide relative to each other, so that the length of the telescopic scraper 109 becomes longer. At the same time, the rotation of the telescopic scraper 109 can drive the first chain 111 to tighten, so that the contact pressure between the telescopic scraper 109 and the surface of the receiving plate 106 increases.

[0034] When the amount of slag brought by the telescopic scraper 109 increases, the telescopic scraper 109 rotates around the rotating shaft 1091 and extends. Since the bearing area of ​​the telescopic scraper 109 increases, the telescopic scraper 109 can carry more slag. At the same time, the contact area between the telescopic scraper 109 and the receiving plate 106 increases. By tightening the first chain 111, the contact pressure between the telescopic scraper 109 and the surface of the receiving plate 106 is increased. In this way, the clamping force between the extended telescopic scraper 109 and the receiving plate 106 can be ensured to avoid leakage.

[0035] Secondly, since three chains are provided, compared with only two chains in the prior art, the pulling force on the telescopic scraper 109 can be increased, so that the telescopic scraper 109 can pull the slag more easily.

[0036] In one embodiment, the first chain 111 includes elliptical connecting rings 1111 and chain rings that are alternately arranged, the elliptical connecting rings 1111 are fixedly connected to the second scraper 1093, and the chain ring is used to connect two adjacent elliptical connecting rings 1111. The chain ring is a conventional flat chain ring.

[0037] In one embodiment, when the first chain 111 moves forward and backward, the plane where the elliptical connecting ring 1111 is located is parallel to the horizontal plane, the plane where the chain ring is located is perpendicular to the horizontal plane, and the length of the elliptical connecting ring 1111 extends in the front-to-back direction. When the elliptical connecting ring 1111 rotates, the length of the elliptical connecting ring 1111 no longer extends in the front-to-back direction. Since the length of the elliptical connecting ring 1111 is the maximum size, the size of the elliptical connecting ring 1111 in the front-to-back direction after rotation is reduced, thereby achieving the tightening of the first chain 111.

[0038] In one embodiment, two first sprockets 110 and one second sprocket 112 are provided on the driving shaft 104 and the driven shaft 102, the first sprocket 110 corresponds to the first chain 111 and can drive the first chain 111 to rotate, and the second sprocket 112 corresponds to the second chain 108 and can drive the second chain 108 to rotate. The first sprocket 110 is fixedly arranged on the driving wheel and the driven wheel.

[0039] In one embodiment, a return spring 1122 is provided between the second sprocket 112 on the driving shaft 104 and the driving shaft 104. When the moving speed of the second chain 108 is lower than the moving speed of the first chain 111, the return spring 1122 is compressed and stores force. Figure 4 As shown, the reset coil spring 1122 is wound clockwise around the driving shaft 104, a fixed cylinder 1121 is provided inside the second sprocket 112, and the reset coil spring 1122 is located between the fixed cylinder 1121 and the driving shaft 104. In other embodiments, a reset coil spring 1122 is also provided between the second sprocket 112 on the driven shaft 102 and the driven shaft 102, and the two reset coil springs 1122 can make it easier to reset the second chain 108. The driving shaft 104 is connected to a driving motor (not shown in the figure).

[0040] In one embodiment, one of the first scraper 1092 and the second scraper 1093 is provided with a slide groove 1094, and the other is provided with a guide bar, the slide groove 1094 extends in the horizontal direction, and the guide bar and the slide groove 1094 are slidably matched. Figure 8 As shown, a slide groove 1094 is provided on the second scraper 1093, and a guide bar is provided on the first scraper 1092. The maximum sliding distance between the first scraper 1092 and the second scraper 1093 is equal to the maximum extension distance of the telescopic scraper 109. In the initial state, the telescopic scraper 109 is perpendicular to the second chain 108 and the first chain 111, the maximum rotation angle of the telescopic scraper 109 is 60 degrees, and the maximum extension distance of the telescopic scraper 109 is the distance extended by the telescopic scraper 109 rotating 60 degrees.

[0041] In one embodiment, a plurality of baffles 1095 are disposed on the second scraper 1093, and the plurality of baffles 1095 are spaced apart in the horizontal direction, and the baffles 1095 are perpendicular to the second scraper 1093. The baffles 1095 can prevent the slag from leaking along the length direction of the second scraper 1093 when sliding.

[0042] In one embodiment, the front end of the housing 103 is provided with a feed port 101, and the slag can fall to the front end of the receiving plate 106 through the feed port 101. The rear end of the receiving plate 106 is provided with an opening, and the rear end of the housing 103 is provided with a discharge port 105, and the discharge port 105 corresponds to the opening up and down. In this embodiment, the receiving plate 106 is located in the middle of the housing 103, so that the upper telescopic scraper 109 and the receiving plate 106 are slidably matched. In other embodiments, the receiving plate 106 can be located at the bottom of the housing 103, so that the lower telescopic scraper 109 and the receiving plate 106 are slidably matched.

[0043] In one embodiment, a limiting structure is provided on the housing 103, and the limiting structure includes a first limiting plate 1071 and a second limiting plate 1072. The first limiting plate 1071 is fixedly arranged on the housing 103, and the second limiting plate 1072 is connected with the first limiting plate 1071 to form a sliding cavity, and the first chain 111 slides forward and backward along the sliding cavity. The first limiting plate 1071 is an irregular plate, and the second limiting plate 1072 is a vertical plate. The sliding cavity is a cross cavity, including a vertical cavity and a horizontal cavity. The vertical cavity is for the chain ring to slide, and the horizontal cavity is for the elliptical connecting ring 1111 to slide. The second limiting plate 1072 is provided with an opening, and the side of the elliptical connecting ring 1111 close to the second scraper 1093 can extend from the opening.

[0044] In one embodiment, a notch is provided on one side of the elliptical connecting ring 1111 facing the second scraper 1093, and the notch is provided with two front and rear clamping blocks, which clamp and fix the front and rear side surfaces of the second scraper 1093. This facilitates the fixed connection between the elliptical connecting ring 1111 and the second scraper 1093.

[0045] In combination with the above embodiments, the use principle and working process of the embodiments of the present invention are as follows:

[0046] The driving motor is controlled to drive the driving shaft 104 to rotate, and the driving shaft 104 rotates to drive the first sprocket 110 and the second sprocket 112 to rotate clockwise, thereby driving the first chain 111 and the second chain 108 to rotate around the driving shaft 104 and the driven shaft 102. Then, slag is fed into the feed port 101. When the amount of slag falling is small, the telescopic scraper 109 is perpendicular to the first chain 111 and the second chain 108, and the first chain 111 and the second chain 108 move at the same speed.

[0047] When the amount of slag falling increases, the amount of slag carried by the telescopic scraper 109 increases, thereby increasing the resistance, making the moving speed of the second chain 108 smaller than the moving speed of the first chain 111, and then the rotation speed of the second sprocket 112 smaller than the rotation speed of the driving shaft 104. At this time, the reset coil spring 1122 is compressed and accumulated, and the telescopic scraper 109 will rotate around the rotating shaft 1091, causing the second scraper 1093 to slide relative to the first scraper 1092, thereby extending the length of the telescopic scraper 109. Since the bearing area of ​​the telescopic scraper 109 is increased, the pressure per unit area of ​​the telescopic scraper 109 is reduced, so that the telescopic scraper 109 can carry more slag.

[0048] At the same time, due to the rotation of the telescopic scraper 109, the second scraper 1093 drives the elliptical connecting ring 1111 of the first chain 111 to rotate synchronously, so that the size of the elliptical connecting ring 1111 in the front-to-back direction is reduced, so that the first chain 111 is tightened. Due to the extension of the telescopic scraper 109, the contact area between the telescopic scraper 109 and the receiving plate 106 is increased. By tightening the first chain 111, the contact pressure between the telescopic scraper 109 and the surface of the receiving plate 106 can be increased, so that the pressing force between the extended telescopic scraper 109 and the receiving plate 106 can be ensured to avoid leakage.

[0049] When the falling amount of the slag decreases, the resistance of the telescopic scraper 109 decreases, and then the force acting on the second chain 108 decreases. At this time, the reset spring 1122 will drive the second sprocket 112 to reset, and the second sprocket 112 will drive the second chain 108 to reset, so that the second chain 108 and the first chain 111 move synchronously, and then the telescopic scraper 109 contracts, the elliptical connecting ring 1111 resets, and the first chain 111 restores its initial length.

[0050] When the slag passes through the opening on the receiving plate 106 , it will fall to the discharge port 105 of the shell 103 , thereby realizing the transportation of the slag.

[0051] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A scraper type slag remover, characterized in that: The invention comprises a shell, wherein a material receiving plate is arranged inside the shell, the material receiving plate is placed horizontally, and a driving shaft and a driven shaft are rotatably arranged at the front and rear ends of the shell respectively, and a chain assembly is wound around the driving shaft and the driven shaft, and the chain assembly comprises two first chains and a second chain, the first chain and the second chain are arranged in parallel and both extend in the front-back direction, the second chain is located in the middle of the two first chains, and a plurality of rotating shafts are arranged at intervals in the front and back of the second chain, the rotating shafts extend in the up-down direction, and two telescopic scrapers are hinged on the rotating shafts, and the telescopic scrapers are perpendicular to the material receiving plate; the two telescopic scrapers are symmetrically arranged about the rotating shafts, and each telescopic scraper comprises a first scraper and a second scraper connected in a sliding manner, the first scraper is rotatably arranged on the rotating shaft, and each second scraper is fixedly connected to a first chain respectively; The telescopic scraper slides along the surface of the material-carrying plate, and when the slag driven by the telescopic scraper increases, the moving speed of the second chain is less than the moving speed of the first chain, so that the telescopic scraper rotates around the rotating shaft, and then the first scraper and the second scraper slide relatively, so that the length of the telescopic scraper becomes longer. At the same time, the rotation of the telescopic scraper can drive the first chain to tighten, so that the contact pressure between the telescopic scraper and the surface of the material-carrying plate increases. The first chain includes alternately arranged elliptical connecting rings and chain rings, and the elliptical connecting ring is fixedly connected to the second scraper. The chain ring is used to connect two adjacent elliptical connecting rings. When the first chain moves back and forth, the plane where the elliptical connecting ring is located is parallel to the horizontal plane, and the chain ring is located The plane is perpendicular to the horizontal plane, and the length of the elliptical connecting ring extends in the front-to-back direction; the rotation of the telescopic scraper causes the second scraper to drive the elliptical connecting ring of the first chain to rotate synchronously, and the size of the elliptical connecting ring in the front-to-back direction is reduced to tighten the first chain. A limiting structure is provided on the shell, and the limiting structure includes a first limiting plate and a second limiting plate. The first limiting plate is fixedly arranged on the shell, and the second limiting plate is connected to the first limiting plate to form a sliding cavity. The first chain slides back and forth along the sliding cavity. The first limiting plate is an irregular plate, and the second limiting plate is a vertical plate. The sliding cavity is a cross cavity, including a vertical cavity and a horizontal cavity. The vertical cavity is for the chain ring to slide, and the horizontal cavity is for the elliptical connecting ring to slide.

2. The scraper type slag remover according to claim 1, characterized in that: The driving shaft and the driven shaft are both provided with two first sprockets and one second sprocket, the first sprocket corresponds to the first chain and can drive the first chain to rotate, and the second sprocket corresponds to the second chain and can drive the second chain to rotate.

3. The scraper type slag remover according to claim 2, characterized in that: A return coil spring is provided between the second sprocket on the driving shaft and the driving shaft. When the moving speed of the second chain is lower than the moving speed of the first chain, the return coil spring is compressed to store force.

4. The scraper type slag remover according to claim 3, characterized in that: One of the first scraper and the second scraper is provided with a slide groove, and the other is provided with a guide bar, the slide groove extends in a horizontal direction, and the guide bar is slidably matched with the slide groove.

5. The scraper type slag remover according to claim 4, characterized in that: The second scraper is provided with a plurality of baffles, which are spaced apart in the horizontal direction, and the baffles are perpendicular to the second scraper.

6. The scraper type slag remover according to claim 1, characterized in that: The front end of the shell is provided with a feed port, and the slag can fall to the front end of the receiving plate through the feed port. The rear end of the receiving plate is provided with an opening, and the rear end of the shell is provided with a discharge port, and the discharge port corresponds to the opening up and down.

7. The scraper type slag remover according to claim 1, characterized in that: A notch is provided on one side of the elliptical connecting ring facing the second scraper, and the notch is provided with two front and rear clamping blocks, which clamp and fix the front and rear side surfaces of the second scraper.

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