CN111762540A

CN111762540A - Independent shock attenuation belt feeder wiper mechanism

Info

Publication number: CN111762540A
Application number: CN202010736232.9A
Authority: CN
Inventors: 赵凯
Original assignee: Jiangsu Kereklin Engineering Technology Co ltd
Current assignee: Jiangsu Kereklin Engineering Technology Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2020-10-13

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

Independent shock attenuation belt feeder wiper mechanism

Technical Field

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

Background

In the process of conveying bulk materials by the belt conveyor, belt materials are adhered to the return belt surface of the belt conveyor, which is called return belt materials for short. The return belt material firstly influences the service life of the bend pulley, so that the wear of the pulley surface is faster. If the return belt material is stuck on the surface of the roller, the more the return belt material is stuck, the deviation of the conveying belt can be caused, the abrasion of the conveying belt is increased, and serious consequences are caused. The return belt material can also stick to the lower carrier roller of the idle section, the wear of the conveying belt can be accelerated, and the material can also enter the shell of the carrier roller, so that the radial load and the axial load on the bearing seat are increased, and the bearing is quickly worn. In addition, the roller shell can interact with a belt after being stuck with dry materials, and dust can be brought. The shaking of the return belt material stuck on the belt when passing over each carrier roller can also bring about dust raising. Therefore, belt cleaning is becoming an indispensable part of belt conveyor systems, and the requirement for belt cleaning is also becoming higher and higher.

The existing secondary sweeper needs a tungsten steel blade in order to scrape materials with strong adhesion. However, tungsten steel blades are relatively hard and can damage the belt if the damping effect is not good. Therefore, the sweeper cannot be additionally arranged on the roller and can only be additionally arranged at the rear part of the head roller, so that the problem 1 is caused that the belt flutters, and the contact between the blade and the belt is poor; 2, the rear part is additionally arranged, and the materials removed by the sweeper can not enter the hopper, so that manual cleaning is needed, or an auxiliary chute needs to be additionally arranged on the belt conveyor; in addition, the surface of the belt is often not flat due to wear and impact of the material. In the existing two-stage sweeper, each blade is generally provided with a tensioner device at two ends. Even if a rubber base or a polyurethane base is additionally arranged below each blade, the damping effect is poor due to the short moment.

Disclosure of Invention

The invention aims to provide an independent damping belt conveyor cleaning mechanism to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an independent damping belt conveyor cleaning mechanism comprises a rack rod piece, a scraper unit and a rubber torsion spring assembly, wherein the rack rod piece comprises a connecting pipe, two torsion rods and a mounting plate, the connecting pipe is a square pipe, the two torsion rods are round pipes, and the two torsion rods penetrate through the two ends of the connecting pipe respectively; a plurality of mounting plates are uniformly welded along the upper side of the connecting pipe, and the rubber torsion spring assemblies correspond to the mounting plates one by one; 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.

Preferably, the tensioner is a torsion spring tensioner, the torsion spring tensioner comprises a connecting plate, a first sleeve and a limiting member, the connecting plate and the first sleeve both penetrate through the torsion bar, the connecting plate and the connecting pipe are fixed to each other, and the first sleeve and the torsion bar are fixed to each other; the limiting part is a T-shaped structure formed by a cross rod and a vertical rod, the cross rod and the connecting plate are fixed with each other, a spring is arranged on the vertical rod, and a limiting nut is arranged at the top end of the vertical rod; the connecting piece is fixed on the first sleeve piece, a through hole is formed in the tail end of the connecting piece, and the through hole penetrates 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 comprises a fixing frame and a second sleeve piece, the fixing frame is of a U-shaped structure, the fixing frame is clamped above the torsion bar, and the second sleeve piece penetrates through the torsion bar; the second sleeve is provided with a limiting rod, a limiting plate is transversely arranged on the fixing frame, and the limiting rod penetrates through the limiting plate; the limiting rod is sleeved with a spring, the tail end of the limiting rod is provided with a limiting nut, and the spring is located between the limiting nut and the limiting plate.

Preferably, the whole tool rest is of an L-shaped structure, the specifications of the tool rest are different, the blades are arranged in a staggered mode in length, the blades are welded to the head of the tool rest, the blades are arranged in a staggered mode in front and back, and two rows of blades are arranged in an overlapped mode.

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

Preferably, the rubber torsion spring assembly comprises a rubber material, a square shaft and a shell, the square shaft is arranged in the shell, and the rubber material is filled between the square shaft and the shell; the rubber material is fully vulcanized and connected with the square shaft and the shell.

Preferably, the shell is circular or square, a fixed seat is arranged at the bottom of the shell, and the fixed seat is fixedly connected with the mounting plate through a bolt.

Preferably, a through hole is transversely formed in the square shaft, and the square shaft is connected with the tail end of the tool rest; the root part of the tool rest is provided with a square opening, and the square opening is sleeved with a square shaft; be provided with square gasket, connecting bolt and lock nut in square mouth department, lock nut and connecting bolt are mutually supported, and square gasket sets up in square mouthful outside, and connecting bolt is connected with the through-hole in the square shaft.

Compared with the prior art, the invention has the beneficial effects that:

1. the blade is made of carbon-tungsten alloy, so that the efficient sweeping effect is achieved; the angle between the tungsten carbide blade and the surface of the belt is fixed to be less than 90 degrees, so that a safe scraping working form is formed, and the surface of the belt is prevented from being injured;

2. the scrapers are arranged in a staggered manner, so that the material is completely scraped, and no gap exists between the blades;

3. each blade is provided with an independent damping effect by an independent rubber torsion spring; the two ends use spring torsion tensioners to provide an axial tension; or a spring constant pressure tensioner is used for providing an up-and-down damping effect; the excellent damping effect can not only keep the best belt contact, but also provide the buffer effect under the condition of high-speed operation; because of the excellent damping effect of the blade, the sweeper can be directly arranged on the roller, and the two-way sweeper can ensure that the cleaning material can directly fall into the hopper; the manual cleaning intensity is reduced, and an auxiliary chute is not needed;

4. the single scraper is 120mm-170mm, and each scraper is independently suspended, so that when the edge of the blade touches the surface of the belt with the concave-convex part, the maximum contact with the surface of the belt can be still kept. The single blade can swing from one side to the other side at any time according to the change of the surface of the belt.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the spring constant pressure tensioner of the present invention;

FIG. 3 is a schematic view of the construction of the doctor blade unit of the present invention;

FIG. 4 is a schematic structural diagram of a rubber torsion spring assembly according to the present invention;

reference numbers in the figures: 1. a torsion spring tensioner; 2. a spring constant pressure tensioner; 3. a connecting pipe; 4. a torsion bar; 5. mounting a plate; 6. a rubber torsion spring assembly; 7. a tool holder; 8. a blade; 9. a tungsten steel sheet; 10. a square gasket; 11. a connecting bolt; 12. locking the nut; 13. rubber material; 14. a square shaft; 15. a housing; 16. a connecting plate; 17. a first kit; 18. a limiting member; 19. connecting sheets; 20. a fixed mount; 21. a second kit; 22. a limiting rod; 23. and a limiting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-4, the present invention provides a technical solution: an independent damping belt conveyor cleaning mechanism comprises a rack rod piece, a scraper unit and a rubber torsion spring assembly 6, wherein the rack rod piece comprises a connecting pipe 3, a torsion bar 4 and a mounting plate 5, the connecting pipe 3 is a square pipe, the torsion bar 4 is a circular pipe, and the two torsion bars 4 penetrate through the two ends of the connecting pipe 3 respectively; a plurality of mounting plates 5 are uniformly welded along the upper side of the connecting pipe 3, and the rubber torsion spring assemblies 6 correspond to the mounting plates 5 one by one; the scraper unit comprises a knife rest 7 and a blade 8, wherein the blade 8 is arranged at one end of the knife rest 7, and the other end of the knife rest 7 is connected with a rubber torsion spring assembly 6; tensioners are arranged at two ends of the torsion bar 4.

Further, the tensioner is a torsion spring tensioner 1, the torsion spring tensioner 1 comprises a connecting plate 16, a first sleeve 17 and a limiting member 18, the connecting plate 16 and the first sleeve 17 both penetrate 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 limiting part 18 is a T-shaped structure formed by a cross rod and a vertical rod, the cross rod and the connecting plate 16 are fixed with each other, a spring is arranged on the vertical rod, and a limiting nut is arranged at the top end of the vertical rod; a connecting piece 19 is fixed on the first sleeve 17, and a through hole is formed in the tail end of the connecting piece 19, penetrates 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 comprises a fixing frame 20 and a second sleeve 21, the fixing frame 20 is of a U-shaped structure, the fixing frame 20 is clamped above the torsion bar 4, and the second sleeve 21 is threaded on the torsion bar 4; the second sleeve 21 is provided with a limiting rod 22, a limiting plate 23 is transversely arranged on the fixing frame 20, and the limiting rod 22 penetrates through the limiting plate 23; the limiting rod 22 is sleeved with a spring, the tail end of the limiting rod 22 is provided with a limiting nut, and the spring is located between the limiting nut and the limiting plate 23.

Further, the whole tool rest 7 is of an L-shaped structure, different in specification and staggered in length, the blades 8 are welded to the head of the tool rest 7, the blades 8 are staggered in front and back, and two rows of blades are arranged in an overlapped mode.

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

Further, the rubber torsion spring assembly 6 comprises a rubber material 13, a square shaft 14 and a shell 15, the square shaft 14 is arranged inside the shell 15, and the rubber material 13 is filled between the square shaft 14 and the shell 15; the rubber material 13 is fully vulcanized and connected with the square shaft 14 and the shell 15.

Further, casing 15 is circular or square, is provided with the fixing base in casing 15 bottom, the fixing base passes through bolt fixed connection with mounting panel 5.

Further, a through hole is transversely formed in the square shaft 14, and the square shaft 14 is connected with the tail end of the tool rest 7; the root part of the tool rest 7 is provided with a square opening which is sleeved with a square shaft 14; the square shaft is characterized in that a square gasket 10, a connecting bolt 11 and a locking nut 12 are arranged at the square opening, the locking nut 12 is matched with the connecting bolt 11, the square gasket 10 is arranged outside the square opening, and the connecting bolt 11 is connected with a through hole in a square shaft 14.

The working principle is as follows: the torsion bar 4 penetrates into the connecting pipe 3, and the torsion bar and the connecting pipe can rotate relatively; a plurality of mounting plates 5 are welded on the connecting pipe 3, the mounting plates 5 are correspondingly mounted with rubber torsion spring assemblies 6, and the rubber torsion spring assemblies 6 are correspondingly mounted with the scraper units; a tensioner on the torsion bar 4 provides the motive force to urge the scraper blade against the belt to be cleaned. The tensioner is provided with two types, namely a torsion spring tensioner 1 and a spring constant pressure tensioner 2; when a torsion spring tensioner 1, provides an axial tension; when the spring constant pressure tensioner 2 is used, an upper and lower tension force is provided; the scraper can be powered to be arranged close to the belt.

The torsion spring tensioner 1 is fixed with the connecting pipe 3 through the connecting plate 16 and the torsion bar 4 through the first sleeve 17; when the connecting pipe 3 and the torsion bar 4 rotate relatively, the connecting plate 16 and the first sleeve 17 displace relatively, so that the connecting plate 19 and the first sleeve 17 displace relatively, the spring on the vertical rod of the first sleeve 17 is compressed, the connecting pipe 3 rotates due to the elastic potential of the spring, the tool rest 7 which is mutually installed with the connecting pipe 3 is driven to rotate, and the blade 8 at the tail end of the connecting pipe is arranged to be attached to a belt.

The position of a fixing frame 20 in the spring constant-pressure tensioner 2 is fixed, and the spring is pressed between a limiting nut and a limiting plate 23; the elastic potential energy of the spring pulls the second sleeve 21 upwards to drive the torsion bar 4 and the connecting pipe 4 to move upwards, so that the knife rest 7 moves upwards to enable the blade 8 at the tail end of the knife rest to be arranged against the belt.

The cutter holders 7 and the blades 8 which are different in specification, staggered in length and overlapped to form two rows can ensure that the belt is completely cleaned, no gap exists between the blades, and the cleaning is more thorough. The blade 8 is milled with a groove, the tungsten steel sheet 9 is buried in the groove, and the cleaning effect is more efficient due to the adoption of the carbon-tungsten alloy material.

The square shaft 14 of the rubber torsion spring assembly 6 is connected with the square opening at the root part of the tool rest 7, the outside of the square opening is connected with a through hole in the square shaft 14 through a connecting bolt 11, the connecting bolt 11 is provided with a locking nut 12 in a matching way, and a square gasket 10 is arranged to play a role in buffering and protecting. The rubber 13 is filled between the square shaft 14 and the shell 15 and is fully vulcanized and connected with the square shaft 14 and the shell 15; the impact of the belt on the blade 8 is transmitted to the square shaft 14 through the frame, the rubber 13 surrounding the square shaft 14 provides damping for the blade 8, and each blade 8 is provided with independent damping effect by an independent rubber torsion spring.

The thickness of the single blade 8 is 120mm-170mm, each blade 8 is independently suspended, and when the edge of each blade 8 touches the surface of a belt with concave and convex parts, the contact between the edge of each blade 8 and the surface of the belt can be kept to the maximum extent. The single blade 8 can swing from side to side by itself at any time according to the change of the surface of the belt.

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

Claims

1. The utility model provides an independent shock attenuation belt feeder wiper mechanism which characterized in that: the scraper device comprises a rack rod piece, a scraper unit and a rubber torsion spring assembly (6), wherein the rack rod piece comprises a connecting pipe (3), a torsion bar (4) and a mounting plate (5), the connecting pipe (3) is a square pipe, the torsion bar (4) is a round pipe, and the two torsion bars (4) penetrate through the two ends of the connecting pipe (3) respectively; a plurality of mounting plates (5) are uniformly welded along the upper side of the connecting pipe (3), and the rubber torsion spring assemblies (6) correspond to the mounting plates (5) one by one; the scraper unit comprises a knife rest (7) and a blade (8), the blade (8) is arranged at one end of the knife rest (7), and the other end of the knife rest (7) is connected with a rubber torsion spring assembly (6); tensioners are arranged at two ends of the torsion bar (4).

2. The independent damping belt conveyor cleaning mechanism according to claim 1, characterized in that: the tensioner is a torsion spring tensioner (1), the torsion spring tensioner (1) comprises a connecting plate (16), a first sleeve piece (17) and a limiting piece (18), the connecting plate (16) and the first sleeve piece (17) penetrate through a torsion bar (4), the connecting plate (16) and a connecting pipe (3) are fixed to each other, and the first sleeve piece (17) and the torsion bar (4) are fixed to each other; the limiting piece (18) is of a T-shaped structure consisting of a cross rod and a vertical rod, the cross rod and the connecting plate (16) are fixed with each other, a spring is arranged on the vertical rod, and a limiting nut is arranged at the top end of the vertical rod; a connecting piece (19) is fixed on the first sleeve piece (17), a through hole is formed in the tail end of the connecting piece (19), and the through hole penetrates through the vertical rod and is located at the lower end of the spring.

3. The independent damping belt conveyor cleaning mechanism according to claim 1, characterized in that: the tensioner is a spring constant-pressure tensioner (2), the spring constant-pressure tensioner (2) comprises a fixing frame (20) and a second sleeve piece (21), the fixing frame (20) is of a U-shaped structure, the fixing frame (20) is clamped above the torsion bar (4), and the second sleeve piece (21) penetrates through the torsion bar (4); the second sleeve (21) is provided with a limiting rod (22), a limiting plate (23) is transversely arranged on the fixing frame (20), and the limiting rod (22) penetrates through the limiting plate (23); the spring is sleeved on the limiting rod (22), a limiting nut is arranged at the tail end of the limiting rod (22), and the spring is located between the limiting nut and the limiting plate (23).

4. The independent damping belt conveyor cleaning mechanism according to claim 1, characterized in that: the cutter frame (7) is integrally of an L-shaped structure, different in specification and staggered in length, the blades (8) are welded to the head of the cutter frame (7), and the blades (8) are staggered in front and back and are overlapped to form two rows.

5. The independent damping belt conveyor cleaning mechanism according to claim 1, characterized in that: the height of the blade (8) is not more than 20mm, the width of the blade is 120mm-170mm, and the thickness of the blade is not less than 10 mm; the two ends of the blade (8) are provided with radians, the blade (8) is milled with a groove, and a tungsten steel sheet (9) is embedded in the groove.

6. The independent damping 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 shell (15), the square shaft (14) is arranged in the shell (15), and the rubber material (13) is filled between the square shaft (14) and the shell (15); the rubber material (13) is fully vulcanized and connected with the square shaft (14) and the shell (15).

7. The independent damping belt conveyor cleaning mechanism according to claim 6, characterized in that: casing (15) are circular or square, are provided with the fixing base in casing (15) bottom, the fixing base passes through bolt fixed connection with mounting panel (5).

8. The independent damping belt conveyor cleaning mechanism according to claim 6, characterized in that: a through hole is transversely formed in the square shaft (14), and the square shaft (14) is connected with the tail end of the tool rest (7); the root part of the tool rest (7) is provided with a square opening which is sleeved with a square shaft (14); be provided with square gasket (10), connecting bolt (11) and lock nut (12) in square mouth department, lock nut (12) and connecting bolt (11) mutually support, and square gasket (10) set up in square mouthful outside, and connecting bolt (11) are connected with the through-hole in square axle (14).