CN111762540A - An independent shock-absorbing belt conveyor cleaning mechanism - Google Patents

Abstract

The invention relates to the technical field of belt cleaning, and particularly discloses an independent damping belt conveyor cleaning mechanism which comprises a rack rod piece, a scraper unit and a rubber torsion spring assembly, wherein the rack rod piece comprises a connecting pipe, a torsion bar and a mounting plate, the connecting pipe is a square pipe, the torsion bar is a round pipe, the torsion bar penetrates through the connecting pipe, a plurality of pieces of the mounting plate are uniformly welded along the upper side of the connecting pipe, and the rubber torsion spring assembly is correspondingly arranged on the mounting plate; the scraper unit comprises a knife rest and a blade, the blade is arranged at one end of the knife rest, and the other end of the knife rest is connected with the rubber torsion spring assembly; tensioners are arranged at two ends of the torsion bar; the two ends of the invention provide the damping function by using the tensioner, and the excellent damping effect can not only keep the best belt contact, but also provide the damping function under the condition of high-speed operation; the two-way sweeper is ensured to directly drop the cleaning material into the hopper, and the manual cleaning intensity is reduced.

Description

An independent shock-absorbing belt conveyor cleaning mechanism

technical field

The invention relates to the technical field of belt cleaning, in particular to an independent shock-absorbing belt conveyor cleaning mechanism.

Background technique

When the bulk material is transported by the belt conveyor, the belt material will stick on the return belt surface of the belt conveyor, which is referred to as the return belt material. The first thing that the return belt material affects is the life of the reversing drum, which makes the surface of the drum wear faster. If the return belt material sticks to the surface of the drum, the more sticky it is, the more it will cause the conveyor belt to deviate, increase the wear of the conveyor belt, and cause serious consequences. The return belt material will also stick to the lower idler roller in the idle section, which will accelerate the wear of the conveyor belt, and the material will also enter the idler shell, thereby increasing the radial load and axial load on the bearing seat and causing the bearing to wear quickly. . In addition, the roller shell will interact with the belt after the material is adhered to dry, which will bring dust. The jitter of the return material stuck to the belt as it passes each idler will also cause dust. Therefore, belt cleaning is increasingly becoming an indispensable part of the belt conveyor system, and the cleaning requirements for the belt are also getting higher and higher.

Existing secondary cleaners often require tungsten steel blades in order to scrape off materials with strong adhesion. However, the tungsten steel blade is relatively hard, and if the shock absorption effect is not good, it will damage the belt. Therefore, the cleaner often cannot be installed on the drum, but can only be installed at the rear of the head drum. The problems caused by this are 1. The belt flutters, which will lead to poor contact between the blade and the belt; 2. It is installed at the rear, The material removed by the cleaner often cannot enter the funnel, so manual cleaning is required, or an auxiliary chute must be added to the belt conveyor; in addition, the surface of the belt is often not flat due to the wear and impact of the material. In the existing secondary cleaners, each blade is usually equipped with a tensioner device at both ends. Even if a rubber base or a polyurethane base is installed under each blade, the damping effect is not good due to the short moment.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an independent shock-absorbing belt conveyor cleaning mechanism to solve the above-mentioned problems in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: an independent shock-absorbing belt conveyor cleaning mechanism, including a frame rod, a scraper unit, and a rubber torsion spring assembly, the frame rod includes a connecting pipe, a torsion bar and a mounting plate, the connecting tube is a square tube, the torsion bar is a circular tube, and there are two torsion bars, which respectively penetrate from both ends of the connecting tube; the mounting plate is evenly welded along the upper side of the connecting tube with multiple pieces , the rubber torsion spring assembly is in one-to-one correspondence with the mounting plate; the scraper unit includes a tool holder and a blade, the blade is arranged at one end of the tool holder, and the other end of the tool holder is connected with the rubber torsion spring assembly; the torsion force Both ends of the rod are provided with tensioners.

Preferably, the tensioner is a torsion spring tensioner, and the torsion spring tensioner includes a connecting plate, a first sleeve, and a limiting member, and the connecting plate and the first sleeve pass through the torsion bar, The connecting plate and the connecting pipe are fixed to each other, and the first kit and the torsion bar are fixed to each other; the limiting member is a "T"-shaped structure composed of a horizontal bar and a vertical bar, the horizontal bar and the connecting plate are fixed to each other, and the vertical bar is provided with There is a spring, the top end of the vertical rod is provided with a limit nut; the first kit is fixed with a connecting piece, and the end of the connecting piece is provided with a through hole, which passes through the vertical rod and is located at the lower end of the spring .

Preferably, the tensioner is a spring constant pressure tensioner, the spring constant pressure tensioner includes a fixing frame and a second set, the fixing frame is a "U"-shaped structure, and the fixing frame is clamped above the torsion bar , the second set is worn on the torsion bar; a limit rod is set on the second set, and a limit plate is laterally set on the fixing frame, and the limit rod passes through the limit board; There is a spring, a limit nut is arranged at the end of the limit rod, and the spring is located between the limit nut and the limit plate.

Preferably, the tool rest has an "L"-shaped structure as a whole, with different specifications, and the lengths are staggered.

Preferably, the height of the blade is not more than 20mm, the width is 120mm~170mm, and the thickness is not less than 10mm; arcs are provided at both ends of the blade, the blade is milled with grooves, and tungsten steel sheets are embedded in the grooves.

Preferably, the rubber torsion spring assembly includes a rubber material, a square shaft and a casing, a square shaft is arranged inside the casing, and a rubber material is filled between the square shaft and the casing; the rubber material and the square shaft are , Fully vulcanized connection between shells.

Preferably, the housing is circular or square, and a fixing seat is provided at the bottom of the housing, and the fixing seat and the mounting plate are fixedly connected by bolts.

Preferably, a through hole is laterally arranged in the square shaft, and the square shaft is connected with the end of the tool holder; a square mouth is arranged at the root of the tool holder, and the square mouth and the square shaft are sleeved; a square pad is arranged at the square mouth A plate, a connecting bolt and a locking nut, the locking nut and the connecting bolt cooperate with each other, the square gasket is arranged outside the square mouth, and the connecting bolt is connected with the through hole in the square shaft.

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

1. The blade is made of carbon tungsten alloy, which has a high-efficiency cleaning effect; the angle between the tungsten carbide blade and the belt surface is fixed less than 90°, forming a safe "scraping" working form to prevent damage to the belt surface;

2. The scrapers are staggered, the scraping is complete, and there is no gap between the blades;

3. Each blade is provided with a separate rubber torsion spring to provide a separate shock absorption effect; a spring torsion tensioner is used at both ends to provide an axial tension force; or a spring constant pressure tensioner is used to provide an upper and lower shock absorption effect. ;Excellent damping effect can not only maintain the best belt contact but also provide cushioning effect under high speed operation; Due to the excellent damping effect of the blade, this cleaner can be directly mounted on the drum to ensure that the secondary cleaner can Drop the cleaning material directly into the funnel; reduce the intensity of manual cleaning, and do not need to use the auxiliary chute;

4. The single scraper is 120mm-170mm, and each scraper is suspended independently to ensure that when the edge of the blade touches the uneven belt surface, it can still maintain maximum contact with the belt surface. A single blade can swing from side to side on its own as the belt surface changes at any time.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the structural schematic diagram of the spring constant pressure tensioner of the present invention;

Fig. 3 is a schematic diagram of the structure of the scraper unit of the present invention;

4 is a schematic structural diagram of the rubber torsion spring assembly of the present invention;

Labels in the figure: 1. Torsion spring tensioner; 2. Spring constant pressure tensioner; 3. Connecting pipe; 4. Torsion bar; 5. Mounting plate; 6. Rubber torsion spring assembly; 7. Tool holder; 8. Blade; 9, tungsten steel sheet; 10, square washer; 11, connecting bolt; 12, locking nut; 13, rubber material; 14, square shaft; 15, shell; 16, connecting plate; 17, the first kit ; 18, limit piece; 19, connecting piece; 20, fixing frame; 21, second kit; 22, limit rod; 23, limit plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the orientations or positional relationships shown in the drawings, only In order to facilitate the description of the present invention and simplify the description, it is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise expressly specified and limited, the terms "arranged", "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. 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 situations.

1-4, the present invention provides a technical solution: an independent shock-absorbing belt conveyor cleaning mechanism, including a frame rod, a scraper unit, a rubber torsion spring assembly 6, and the frame rod includes a connecting pipe 3 , a torsion bar 4 and a mounting plate 5, the connecting tube 3 is a square tube, the torsion bar 4 is a circular tube, and there are two torsion bars 4, which penetrate from both ends of the connecting tube 3; the mounting plate 5. A plurality of pieces are evenly welded along the upper side of the connecting pipe 3, and the rubber torsion spring assembly 6 corresponds to the mounting plate 5 one-to-one; At one end, the other end of the knife holder 7 is connected with the rubber torsion spring assembly 6 ; the two ends of the torsion bar 4 are provided with tensioners.

Further, the tensioner is a torsion spring tensioner 1, and the torsion spring tensioner 1 includes a connecting plate 16, a first sleeve 17, and a limiting member 18. The connecting plate 16 and the first sleeve 17 are both Passing through the torsion bar 4, the connecting plate 16 and the connecting pipe 3 are fixed to each other, and the first sleeve 17 and the torsion bar 4 are fixed to each other; The cross bar and the connecting plate 16 are fixed to each other, the vertical bar is provided with a spring, and the top of the vertical bar is provided with a limit nut; the first kit 17 is fixed with a connecting piece 19, and the end of the connecting piece 19 is provided with a through hole , the through hole passes through the vertical rod and is located at the lower end of the spring.

Further, the tensioner is a spring constant pressure tensioner 2, the spring constant pressure tensioner 2 includes a fixing frame 20 and a second kit 21, the fixing frame 20 is a "U"-shaped structure, and the fixing frame 20 is stuck above the torsion bar 4, and the second kit 21 is worn on the torsion bar 4; the second kit 21 is provided with a limit rod 22, and a limit plate 23 is laterally arranged on the fixing frame 20, and the limit rod 22 Passing through the limit plate 23 ; a spring is sleeved on the limit rod 22 , a limit nut is arranged at the end of the limit rod 22 , and the spring is located between the limit nut and the limit plate 23 .

Further, the knife holder 7 is of an "L"-shaped structure as a whole, with different specifications, and the lengths are staggered.

Further, the height of the blade 8 is not more than 20mm, the width is 120mm~170mm, and the thickness is not less than 10mm; the two ends of the blade 8 are provided with radians, the blade 8 is milled with a groove, and the groove is embedded with a tungsten steel sheet 9.

Further, the rubber torsion spring assembly 6 includes a rubber material 13 , a square shaft 14 and a casing 15 , the casing 15 is provided with a square shaft 14 inside, and a rubber material is filled between the square shaft 14 and the casing 15 . 13; The rubber material 13 is fully vulcanized and connected with the square shaft 14 and the housing 15.

Further, the housing 15 is circular or square, and a fixing seat is provided at the bottom of the housing 15 , and the fixing seat and the mounting plate 5 are fixedly connected by bolts.

Further, a through hole is laterally provided in the square shaft 14, and the square shaft 14 is connected with the end of the tool holder 7; a square mouth is provided at the root of the tool holder 7, and the square mouth and the square shaft 14 fit together; A square washer 10, a connecting bolt 11 and a locking nut 12 are arranged at the place. The locking nut 12 cooperates with the connecting bolt 11. The square washer 10 is arranged outside the square mouth, and the connecting bolt 11 and the square shaft 14 holes are connected.

Working principle: the torsion bar 4 penetrates into the connecting pipe 3, and the two can rotate relative to each other; a plurality of mounting plates 5 welded on the connecting pipe 3, the mounting plates 5 are installed corresponding to the rubber torsion spring assembly 6, and the rubber torsion spring assembly 6 and the scraper The units are installed correspondingly; the tensioner set on the torsion bar 4 provides power to make the scraper stick to the belt to be cleaned. There are two types of tensioners, namely torsion spring tensioner 1 and spring constant pressure tensioner 2; when it is torsion spring tensioner 1, it provides an axial tension; when it is spring constant pressure tensioner When the device 2 is used, an upper and lower tension force is provided; both can give power to the scraper, so that it is set against the belt.

In the torsion spring tensioner 1, the connecting plate 16 and the connecting tube 3 are fixed to each other, and the first sleeve 17 and the torsion bar 4 are fixed to each other; when the connecting tube 3 and the torsion bar 4 rotate relative to each other, the connecting plate 16, the first sleeve 17 The relative displacement of the two causes the relative displacement of the connecting piece 19 and the first sleeve 17, compressing the spring on the vertical rod of the first sleeve 17, and the elastic force of the spring makes the connecting pipe 3 rotate, thereby driving the connecting pipe 3 to be installed with each other. The knife holder 7 is rotated so that the blade 8 at the end is set against the belt.

The fixed position of the fixed frame 20 in the spring constant pressure tensioner 2 is fixed, and the spring is pressed between the limit nut and the limit plate 23; the elastic potential energy of the spring pulls the second set 21 upward, driving the torsion bar 4 and the connecting pipe 4 to move up , so that the knife holder 7 is moved up, and the blade 8 at the end thereof is set against the belt.

Two rows of knife rests 7 and blades 8 are arranged in different specifications, arranged in staggered lengths and overlapped with each other, so that the belt can be completely cleaned, there is no gap between the blades, and the cleaning is more thorough. The blade 8 is milled with a groove, and a tungsten steel sheet 9 is embedded in the groove, which is made of carbon tungsten alloy, and the cleaning effect is more efficient.

The square shaft 14 of the rubber torsion spring assembly 6 is connected with the square port at the root of the tool holder 7, and is connected with the through hole in the square shaft 14 through the connecting bolt 11 outside the square port. There is a square spacer 10 to play a buffer protection effect. The rubber 13 is filled between the square shaft 14 and the casing 15, and is fully vulcanized and connected with the square shaft 14 and the casing 15; the impact of the belt on the blade 8 is transmitted to the square shaft 14 through the frame, and the surrounding The rubber 13 provides shock absorption for the blades 8, and each blade 8 is provided with a separate shock absorption effect by a separate rubber torsion spring.

The thickness of the single blade 8 is 120mm~170mm, and each blade 8 is suspended independently to ensure that when the edge of the blade 8 touches the uneven belt surface, it can still maintain maximum contact with the belt surface. The single blade 8 is capable of rocking from side to side on its own at any time in response to changes in the belt surface.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. An independent shock-absorbing belt conveyor cleaning mechanism, characterized in that it includes a frame rod, a scraper unit, and a rubber torsion spring assembly (6), and the frame rod includes a connecting pipe (3), a torsion bar (4) ) and the mounting plate (5), the connecting pipe (3) is a square pipe, the torsion bar (4) is a circular pipe, and there are two torsion bars (4), which are respectively connected from both ends of the connecting pipe (3). penetration; the mounting plate (5) is uniformly welded with multiple pieces along the upper side of the connecting pipe (3), and the rubber torsion spring assembly (6) is in one-to-one correspondence with the mounting plate (5); the scraper unit includes a knife A frame (7) and a blade (8), the blade (8) is arranged at one end of the blade holder (7), and the other end of the blade holder (7) is connected to the rubber torsion spring assembly (6); the torsion bar ( 4) There are tensioners at both ends. 2. An independent shock-absorbing belt conveyor cleaning mechanism according to claim 1, characterized in that: the tensioner is a torsion spring tensioner (1), and the torsion spring tensioner (1) includes a connection The plate (16), the first set (17), and the limiter (18), the connecting plate (16) and the first set (17) pass through the torsion bar (4), and the connecting plate (16) and the The connecting pipes (3) are fixed to each other, and the first kit (17) and the torsion bar (4) are fixed to each other; the limiting member (18) is a "T"-shaped structure composed of a horizontal bar and a vertical bar, and the horizontal bar is connected to the The connecting plates (16) are fixed to each other, the vertical rod is provided with a spring, and the top of the vertical rod is provided with a limit nut; the first kit (17) is fixed with a connecting piece (19), and the end of the connecting piece (19) A through hole is provided, and the through hole passes through the vertical rod and is located at the lower end of the spring. 3. An independent shock-absorbing belt conveyor cleaning mechanism according to claim 1, characterized in that: the tensioner is a spring constant pressure tensioner (2), and the spring constant pressure tensioner (2) It includes a fixing frame (20) and a second kit (21), the fixing frame (20) is a "U"-shaped structure, the fixing frame (20) is clamped above the torsion bar (4), and the second kit (21) is worn on the on the torsion bar (4); a limit rod (22) is arranged on the second kit (21), a limit plate (23) is laterally arranged on the fixing frame (20), and the limit rod (22) is from the limit The limit plate (23) passes through; the limit rod (22) is sleeved with a spring, and a limit nut is arranged at the end of the limit rod (22), and the spring is located between the limit nut and the limit plate (23). 4. An independent shock-absorbing belt conveyor cleaning mechanism according to claim 1, characterized in that: the knife holder (7) is an "L"-shaped structure as a whole, and the specifications are different, the lengths are staggered, and the blades ( 8) Welded on the head of the tool holder (7), the blades (8) are arranged in a staggered front and rear, and two rows are arranged overlappingly. 5. An independent shock-absorbing belt conveyor cleaning mechanism according to claim 1, characterized in that: the height of the blade (8) is not more than 20mm, the width is 120mm~170mm, and the thickness is not less than 10mm; Both ends are provided with radians, the blade (8) is milled with a groove, and a tungsten steel sheet (9) is embedded in the groove. 6. An independent shock-absorbing belt conveyor cleaning mechanism according to claim 1, characterized in that: the rubber torsion spring assembly (6) comprises a rubber material (13), a square shaft (14) and a housing (15) , a square shaft (14) is arranged inside the casing (15), and a rubber material (13) is filled between the square shaft (14) and the casing (15); the rubber material (13) is connected with the square shaft (14) and the shell (15) are fully vulcanized. 7. An independent shock-absorbing belt conveyor cleaning mechanism according to claim 6, characterized in that: the casing (15) is circular or square, and a fixing seat is provided at the bottom of the casing (15), and the The fixing seat and the mounting plate (5) are fixedly connected by bolts. 8. An independent shock-absorbing belt conveyor cleaning mechanism according to claim 6, characterized in that: the square shaft (14) is laterally provided with a through hole, and the square shaft (14) is connected to the tool holder (7) The ends are connected; a square mouth is arranged at the root of the tool holder (7), and the square mouth is fitted with the square shaft (14); a square washer (10), a connecting bolt (11) and a locking nut ( 12), the locking nut (12) cooperates with the connecting bolt (11), the square washer (10) is arranged outside the square mouth, and the connecting bolt (11) is connected with the through hole in the square shaft (14).

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