Fu chain conveyor with chain blocking prevention function

Abstract

The utility model discloses a Fu chain conveyor with a chain blocking prevention function, which comprises a longitudinal sliding rod, and the longitudinal sliding rod is connected above a chain in a sliding manner along the vertical direction; the upper end of the U-shaped brush is rotationally connected to the longitudinal sliding rod; the material scraping plate is connected into the machine groove in a sliding mode in the horizontal direction; the two ends of the connecting rod are rotationally connected with the scraping plate and the longitudinal sliding rod correspondingly; wherein the scraping plate is in transmission connection with the chain wheel; the scraping plate abuts against the outer contour of the chain wheel all the time. The U-shaped brush slides in a reciprocating mode and abuts against all the rollers on the chain in sequence. And the material scraping plate and the U-shaped brush are used for cleaning the chain wheel and the chain respectively, so that adhered sticking substances are scraped, and the chain is prevented from being blocked. The scraping plate is always attached to the outer contour of the chain wheel, and no dead angle exists in cleaning. The U-shaped brush sequentially cleans the rollers, an additional power mechanism does not need to be arranged, the structure is simple, and production and manufacturing are easy.

Description

Technical Field

[0001] The utility model belongs to a chain conveyor, in particular to a chain conveyor with a function of preventing chain jamming. Background Art

[0002] FU chain conveyor is a conveying equipment widely used in building materials, construction, chemical industry, mining, machinery, smelting, grain and feed processing and other industries. The sprocket drives the chain to rotate in the base groove. Relying on the internal pressure of the material in the machine groove and the internal friction between the particles, the material flows forward like water along with the conveyor chain. In practical applications, when conveying carbon black, titanium oxide, desulfurized gypsum and other materials that have a certain viscosity and are easy to agglomerate, the chain rollers and sprocket teeth will be bonded. With long-term use, the bonding material gradually increases and is compacted. Finally, when the sprocket is engaged with the chain, due to the presence of bonding material, the chain will be stuck or decoupled, and even the chain will be broken or other serious damage will occur, causing the chain conveyor to fail to work normally.

[0003] The Chinese patent document with publication number CN103287826B discloses a protective device for preventing the chain from getting stuck at the head of a FU chain conveyor, which is characterized in that it includes a bracket fixed on the rear end housing of the head sprocket and located between the circulating conveying chains, the upper end of the bracket is provided with a chain-breaking plate facing the sprocket along the direction of the circulating conveying chain, the upper end surface of the chain-breaking plate is close to the lower surface of the chain, two spring supports are provided in the middle of the bracket, a scraper tongue is installed between the spring supports through a spring pin and a torsion spring, the front end of the scraper tongue extends into the head sprocket groove, and the rear end can rotate around the spring pin at a certain angle, an adjustment chain for adjusting the gap between the sprocket groove and the scraper tongue is provided between the front end of the scraper tongue and the bracket below it, and a clearing plate perpendicular to the direction of the circulating conveying chain is installed at the lower end of the bracket, and the lower end surface of the clearing plate is close to the upper surface of the chain.

[0004] Although the scraper tongue in the above patent solution can enter the wheel groove of the sprocket to scrape off the attached material, the sprocket teeth drive the scraper tongue to move in the same direction, and the scraper tongue will instead make the material on the driving surface of the teeth more tightly pressed on the teeth. Therefore, there is a blind spot in the scraping of the scraper tongue. In addition, simply scraping off the material on the sprocket without removing the attached material on the chain will still cause the above-mentioned chain jamming problem. Utility Model Content

[0005] In order to overcome the technical problem in the prior art that the conveyed materials will stick to the sprocket and the chain, and the existing scraper tongue has a dead angle for scraping, and the long-term accumulated adhesive will cause the chain conveyor to get stuck; one purpose of the utility model is to provide a Fu chain conveyor with a function of preventing the chain from getting stuck, by arranging a sliding scraper plate that always fits the outer contour of the sprocket in the machine groove, and arranging a reciprocating U-shaped brush that can scrape the chain rollers in turn in the base groove, so as to clean the sprocket and the chain in real time.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a Fu chain conveyor with a function of preventing chain jamming, comprising a longitudinal slide bar, which is slidably connected to the top of the chain along the vertical direction; a U-shaped brush, the upper end of which is rotatably connected to the longitudinal slide bar; a scraper plate, which is slidably connected in the machine groove along the horizontal direction; a connecting rod, the two ends of which are rotatably connected to the scraper plate and the longitudinal slide bar respectively; wherein the scraper plate is transmission-connected to the sprocket; the scraper plate always abuts against the outer contour of the sprocket; the U-shaped brush reciprocates and abuts against each roller on the chain in turn.

[0007] As the sprocket rotates, the scraper plate slides back and forth and always contacts the outer contour of the sprocket to scrape off the material attached to the sprocket. At the same time, the rollers on the chain enter the U-shaped brush in turn, rub against the U-shaped brush, and scrape off the material on the rollers, thereby preventing the chain from getting stuck.

[0008] Furthermore, a spring is arranged between the scraper plate and the machine groove; the spring is used to make the scraper plate slide toward the sprocket; a driven inclined surface is arranged on the scraper plate; a plurality of rollers are rotatably connected to the sprocket; the rollers are used to drive the driven inclined surface to slide away from the sprocket; the number of the rollers is the same as the number of teeth of the sprocket.

[0009] During the rotation of the sprocket, when the gear teeth rotate downward, there is relative movement between the lower end of the gear teeth and the scraper plate, and the protruding bonding material is scraped off, eliminating the cleaning dead corners. The drive is carried out by the roller, which reduces the partial wear of the gear teeth and increases the service life of the sprocket.

[0010] Specifically, the roller and the gear teeth are located on the same radius of the sprocket.

[0011] Specifically, the scraper plate is close to the upper end of the sprocket; a wheel groove is formed between two adjacent gear teeth; the inner wall of the wheel groove is an inclined plane; when the plane rotates to a horizontal position, the scraper plate slides into the inner bottom of the wheel groove along the upper end of the plane under the elastic force of the spring.

[0012] When the upper end of the gear teeth rotates to face the scraper plate, the roller does not contact the driven inclined surface, and the scraper plate slides along the upper end of the gear teeth and scrapes off the attached materials without cleaning dead corners.

[0013] Preferably, the angle between the plane and the corresponding radius of the adjacent gear tooth is 20°.

[0014] Furthermore, a sliding block is slidably connected in the machine slot in a horizontal direction; and the scraper plate is detachably connected to the upper end of the sliding block.

[0015] After the scraper plate is worn, it is easy to replace the scraper plate, and the operation is simple and convenient.

[0016] Specifically, a transverse sliding groove slidably connected to the sliding block is arranged in the horizontal direction in the machine slot; and a longitudinal sliding groove slidably connected to the longitudinal sliding rod is arranged in the vertical direction in the machine slot.

[0017] Furthermore, a sleeve rotatably connected to the longitudinal sliding rod is disposed at the upper end of the U-shaped brush; and the distance between the inner bottom of the U-shaped brush and the sleeve is less than half of the distance between two adjacent rollers.

[0018] When the roller enters the U-shaped brush, along with the movement of the chain, the U-shaped brush rotates and tilts relative to the longitudinal slide rod until the roller leaves the U-shaped brush, and the U-shaped brush rotates to a vertical position under the action of gravity. Then, driven by the scraper plate, it first slides upward and then downward, so that the adjacent roller enters the U-shaped brush again.

[0019] Preferably, the two side walls at the opening of the U-shaped brush are respectively provided with guide angles; and the inner wall of the U-shaped brush is provided with friction patterns.

[0020] Preferably, a scraping opening is provided at one end of the scraper plate facing the sprocket; and both ends of the sprocket respectively abut against inner walls of the scraping opening.

[0021] The guide angle makes it easy for the roller to enter the U-shaped brush, and the arrangement of the friction pattern and the scraping opening increases the cleaning effect of the sprocket and the chain.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. By setting the scraper plate and U-shaped brush, the sprocket rotates and drives the scraper plate and U-shaped brush to slide back and forth, respectively cleaning the sprocket and chain, scraping off the attached adhesive and preventing the chain from getting stuck.

[0024] 2. Driven by the roller, the scraper plate always fits the outer contour of the sprocket, and there is always relative movement between the adhesive and the scraper plate, so there is no dead angle in the cleaning.

[0025] 3. The U-shaped brush slides back and forth synchronously driven by the scraper plate to clean the rollers in turn. No additional power mechanism is required. The structure is simple and easy to manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 It is a schematic diagram of the parts explosion of the utility model;

[0028] Figure 3 It is a schematic diagram of the structure of the scraper plate and the U-shaped brush of the utility model;

[0029] Figure 4 , Figure 5 , Figure 6 The following are schematic diagrams of working states within a working cycle of the utility model.

[0030] In the figure: 1, housing; 11, longitudinal slide groove; 12, transverse slide groove; 13, pressure plate; 21, sprocket; 22, roller; 3, roller; 41, scraper plate; 411, scraper port; 42, sliding block; 421, driven inclined plane; 422, transverse slide rod; 423, spring rod; 43, spring; 51, U-shaped brush; 511, guide angle; 512, sleeve; 52, longitudinal slide rod; 6, connecting rod. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0032] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise specified and limited, the terms "setting", "installation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] See also Figure 1-Figure 3 A Fu chain conveyor with a function of preventing chain jamming comprises two housings 1, two sprockets 21 rotatably connected between the two housings 1, and chains arranged on the two sprockets 21; the two housings 1 are symmetrically arranged to form a machine groove for accommodating the sprockets 21 and the chains.

[0036] A sliding block 42 is connected to the machine slot in a horizontal sliding direction; a scraper plate 41 is detachably connected to the upper end of the sliding block 42; a longitudinal sliding rod 52 is connected to the machine slot in a vertical sliding direction; a U-shaped brush 51 is rotatably connected to the longitudinal sliding rod 52; the scraper plate 41 and the U-shaped brush 51 are staggered; two connecting rods 6 are symmetrically arranged in the machine slot; the two ends of the connecting rod 6 are rotatably connected to the sliding block 42 and the longitudinal sliding rod 52 respectively.

[0037] A spring rod 423 is provided at one end of the sliding block 42 away from the sprocket 21; a pressure plate 13 slidably connected to the spring rod 423 is provided on the housing 1; a spring 43 that resists the pressure plate 13 is provided on the outer periphery of the spring rod 423; the spring 43 is used to make the scraper plate 41 slide toward the sprocket 21; a driven inclined surface 421 is provided on the sliding block 42; a plurality of rollers 22 are rotatably connected to the sprocket 21; the rollers 22 are used to drive the driven inclined surface 421 to slide away from the sprocket 21; the number of the rollers 22 is the same as the number of the teeth of the sprocket 21; the rollers 22 and the teeth are located on the same radius of the sprocket 21.

[0038] In one embodiment, the driven inclined surface 421 is a nonlinear plane, which is a nonlinear plane set according to the change of the outer contour of the sprocket 21. In another embodiment, the driven inclined surface 421 can also be a linear plane, which only needs to scrape off the attachments on the sprocket to the maximum extent.

[0039] The scraper plate 41 is close to the upper end of the sprocket 21; a wheel groove is formed between two adjacent gear teeth; the inner wall of the wheel groove is an inclined plane; the angle between the plane and the corresponding radius of the adjacent gear teeth is 20°; when the plane rotates to horizontal, the scraper plate 41 slides into the inner bottom of the wheel groove along the upper end of the plane under the elastic force of the spring 43.

[0040] The shell 1 is provided with a horizontal sliding groove 12 which is slidably connected to the sliding block 42; the two ends of the sliding direction of the sliding block 42 are respectively provided with horizontal sliding rods 422 which are slidably connected to the horizontal sliding groove 12; the shell 1 is provided with a longitudinal sliding groove 11 which is slidably connected to the longitudinal sliding rod 52 in the vertical direction.

[0041] The upper end of the U-shaped brush 51 is provided with a sleeve 512 rotatably connected to the longitudinal sliding rod 52; the two side walls at the opening of the U-shaped brush 51 are respectively provided with guide angles 511; the inner wall of the U-shaped brush 51 is provided with friction patterns; in other embodiments, friction materials can also be installed inside the U-shaped brush 51; the distance between the inner bottom of the U-shaped brush 51 and the sleeve 512 is less than half of the distance between two adjacent rollers 3.

[0042] A scraping opening 411 is disposed at one end of the scraper plate 41 facing the sprocket 21 ; both ends of the sprocket 21 abut against inner walls of the scraping opening 411 , respectively.

[0043] Working process: Figure 4 As shown, the rotation of the sprocket 21 drives the roller 22 to rotate, and the rotation of the roller 22 drives the driven inclined surface 421 to slide, thereby causing the sliding block 42 to slide. The sliding of the sliding block 42 synchronously drives the scraper plate 41 to slide away from the sprocket 21, but the scraper opening 411 always fits the outer contour of the gear teeth. In this process, the sliding block 42 slides through the connecting rod 6 to drive the longitudinal sliding rod 52 to slide upward until the scraper opening 411 abuts against the outermost side of the gear teeth, and the longitudinal sliding rod 52 slides upward to drive the U-shaped brush 51 to slide upward to the top of the chain.

[0044] like Figure 5As shown, when the scraper opening 411 abuts against the outermost side of the gear teeth, the driven inclined surface 421 no longer contacts the roller 22, and the elastic force of the spring 43 causes the scraper opening 411 to abut against the gear teeth. When the outermost side of the gear teeth no longer contacts the scraper opening 411, the side wall of the gear teeth located above is in a horizontal state, and the scraper plate 41 slides into the bottom of the wheel groove along the side wall of the gear teeth under the elastic force of the spring 43. When the outermost side of the gear teeth no longer contacts the scraper opening 411, the U-shaped brush 51 opens downward under the action of gravity, and the opening faces a roller. When the scraper plate 41 slides into the bottom of the wheel groove, the U-shaped brush 51 slides downward to the inside and abuts against the roller.

[0045] like Figure 6 As shown, the scraper opening 411 then slides along the bottom of the groove, and the roller drives the U-shaped brush 51 to rotate until the roller leaves the U-shaped brush 51. The U-shaped brush 51 rotates again under the action of gravity until the opening faces downward, and so on. When the sprocket 21 rotates, it moves relative to the scraper plate 41 to scrape off the adhesive. Similarly, the U-shaped brush 51 moves relative to the roller to scrape off the adhesive on the outer periphery of the roller.

[0046] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A chain conveyor with a function of preventing chain jams, characterized in that: It includes a longitudinal sliding rod, which is slidably connected above the chain in a vertical direction; A U-shaped brush, the upper end of which is rotatably connected to the longitudinal sliding rod; A scraper plate, the scraper plate is slidably connected in the machine slot along a horizontal direction; A connecting rod, both ends of which are rotatably connected to the scraper plate and the longitudinal sliding rod respectively; The scraper plate is connected to the sprocket in a transmission manner; the scraper plate always contacts the outer contour of the sprocket; and the U-shaped brush slides back and forth and contacts each roller on the chain in turn.

2. The chain conveyor according to claim 1, characterized in that: A spring is arranged between the scraper plate and the machine groove; the spring is used to make the scraper plate slide toward the sprocket; a driven inclined surface is arranged on the scraper plate; a plurality of rollers are rotatably connected to the sprocket; the rollers are used to drive the driven inclined surface to slide away from the sprocket; the number of the rollers is the same as the number of teeth of the sprocket.

3. The chain conveyor according to claim 2, characterized in that: The roller and the gear teeth are located on the same radius of the sprocket.

4. The chain conveyor according to claim 3, characterized in that: The scraper plate is close to the upper end of the sprocket; a wheel groove is formed between two adjacent gear teeth; the inner wall of the wheel groove is an inclined plane; when the plane rotates to a horizontal position, the scraper plate slides into the inner bottom of the wheel groove along the upper end of the plane under the elastic force of the spring.

5. The chain conveyor according to claim 4, characterized in that: The angle between the plane and the corresponding radius of the adjacent gear teeth is 20°.

6. The chain conveyor according to any one of claims 1 to 5, characterized in that: A sliding block is slidably connected in the machine groove along the horizontal direction; and the scraper plate is detachably connected to the upper end of the sliding block.

7. The chain conveyor according to claim 6, characterized in that: A transverse sliding groove slidably connected to the sliding block is arranged in the machine groove along the horizontal direction; a longitudinal sliding groove slidably connected to the longitudinal sliding rod is arranged in the machine groove along the vertical direction.

8. The Fu chain conveyor according to any one of claims 1 to 5, characterized in that: The upper end of the U-shaped brush is provided with a sleeve rotatably connected to the longitudinal sliding rod; the distance between the inner bottom of the U-shaped brush and the sleeve is less than half of the distance between two adjacent rollers.

9. The Fu chain conveyor according to any one of claims 1 to 5, characterized in that: The two side walls at the opening of the U-shaped brush are respectively provided with guide angles; and the inner wall of the U-shaped brush is provided with friction patterns.

10. The chain conveyor according to any one of claims 1 to 5, characterized in that: A scraping opening is arranged at one end of the scraper plate facing the sprocket; and both ends of the sprocket are respectively against the inner wall of the scraping opening.

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