CN222137813U - Adjustable conveyor belt tensioning device for belt conveyor - Google Patents

Abstract

An adjustable conveyer belt tensioning device of a belt conveyer belongs to the technical field of belt conveyer equipment and is used for tensioning a conveyer belt of the belt conveyer. The technical scheme is that a direction-changing drum seat is fixed on a direction-changing drum fixing beam, drum shafts of two direction-changing drums are respectively connected with the direction-changing drum seat in an installation mode, upper ends of sliding guide rods of two tensioning drums are respectively connected with the direction-changing drum fixing beam in a vertical welding mode, the tensioning drums are located below the position between the two direction-changing drums and are parallel to the direction-changing drums, outer sides of two ends of a tensioning drum frame are respectively in sliding fit with the sliding guide rods of the two tensioning drums, two ends of the tensioning drums are respectively connected with inner sides of two ends of the tensioning drum frame, an electric hoist is arranged at the bottom of the middle of the tensioning drum frame, and a lifting hook of the electric hoist is connected with multi-stage tensioning heavy hammer hoisting. The utility model has simple and reasonable structure and convenient use, and can adjust the tension of the conveying belt, reduce the overall operation load of the belt conveyor and achieve the purposes of energy conservation and consumption reduction.

Description

Conveyer belt tensioning device of adjustable belt conveyor

Technical Field

The utility model relates to a conveyer belt tensioning device of an adjustable belt conveyer, and belongs to the technical field of belt conveyer equipment.

Background

The belt conveyor is widely applied to departments of chemical industry, coal, metallurgy, building materials, electric power, light industry and the like, and is used for conveying various granular, powdery and other bulk materials and finished products. In the running process of the belt conveyor, the tension of the conveying belt needs to be properly adjusted in order to prevent the conveying belt from slipping and adjust the sag of the conveying belt between the carrier rollers so that the equipment can run better. The vertical heavy hammer tensioning device has the advantages of simple structure, low cost, relatively high reliability and the like, and becomes a preferred tensioning device of various belt conveyors, and the vertical heavy hammer tensioning device moves up and down according to the change of the tension of the conveyor belt by depending on the weight of the vertical heavy hammer tensioning device, so that the compensation of the length and the tension of the conveyor belt is realized, the conveyor belt and a transmission roller are ensured to generate enough friction force without slipping, and the conveyor is enabled to normally run. However, in actual use, the tension of the conveying belt when the belt conveyor is started is 1.3 times to 1.5 times of the tension of the stable operation, and because the conventional general vertical tensioning device does not have the function of adjusting the tensioning force, in order to enable the tensioning force to meet the requirement of full-load starting on the tension of the conveying belt, the conventional general vertical tensioning device is required to have a counterweight required for keeping full-load starting, so that the conventional vertical tensioning device has higher tension when the belt conveyor is stably operated, the operation resistance of the belt conveyor is increased, the service lives of tensioning rollers and the conveying belt are reduced, and unnecessary power consumption is increased.

Disclosure of utility model

The utility model aims to solve the technical problem of providing the conveyer belt tensioning device of the adjustable belt conveyer, which can adjust the tension force of the conveyer belt of the belt conveyer, prolong the service life of the conveyer belt, reduce the running power consumption of equipment, save energy and protect environment and have long-term economic benefit.

The technical scheme for solving the technical problems is as follows:

The utility model provides a conveyer belt straining device of adjustable belt conveyor, it includes the bend pulley fixed beam, the bend pulley seat, the bend pulley, take-up pulley sliding guide arm, take-up pulley frame, take-up pulley, electric block, multistage tensioning weight, the bend pulley fixed beam is two parallel horizontal beams, two horizontal beams are located the conveyer belt below of belt conveyor, the length direction of two horizontal beams is along the direction of travel of conveyer belt, two both ends of two horizontal beams are connected with the building built-in fitting respectively, be fixed with two bend pulley seat on the two horizontal beams respectively, two bend pulley are parallel placed above two horizontal beams, the cylinder axle both ends of two bend pulleys are connected with the cylinder seat installation on two horizontal beams respectively, two take-up pulley sliding guide arm are perpendicular to be placed, two take-up pulley sliding guide arm are located between two bend pulley respectively, the upper end of two take-up pulley sliding guide arm is perpendicular welded with the lower surface of two horizontal beams respectively, the lower extreme of two horizontal beams of pull pulley fixed beam is connected with the building pre-buried piece respectively, take-up pulley is located the bend pulley between two bend pulley fixed beam's the lower surface of two bend pulley sliding guide arm, the both ends are parallel to the surface of two bend pulley frame and are the side down pulley frame is the side-up pulley, the surface is parallel to the both ends of two bend pulley sliding guide arm respectively, the upper end is parallel with the upper and lower surface of the bend pulley sliding guide arm is passed through respectively, and is parallel to the bend pulley, lifting hook and multistage of electric hoist and tensioning the heavy hammer to hoist and connect.

Above-mentioned belt conveyor's with adjustable conveyer belt straining device, take-up roller frame include slip cap, bearing bedplate, bearing frame, fixing bolt, crossbeam, guard shield, two slip caps are the board frame structure of U type cross-section respectively, the U template frame cover of two slip caps is in the inboard of two take-up roller slip guide arms, respectively perpendicular welding horizontal bearing bedplate on the bottom plate outer wall of the U template frame of two slip caps, there is the connecting hole on the bearing bedplate, two bearing frames are fixed on the bearing bedplate by fixing bolt respectively, install the bearing in the bearing frame, take-up roller's roller axle both ends are connected with the bearing of bearing frame respectively, take-up roller frame's crossbeam level is placed, the both ends of crossbeam are welded connection with the lower part of two slip caps respectively, the guard shield is located take-up roller's top, the both ends of guard shield are connected with the upper end of two slip caps respectively.

Above-mentioned adjustable belt conveyor's conveyer belt straining device, electric block include gallows, reel, motor, reduction gear, wire rope, lifting hook, high accuracy tension sensor, wire rope buckle, the gallows comprises two vertically steel sheets, two steel sheets parallel relative welding are on the crossbeam lower terminal surface of taut cylinder frame, the reel is installed between two steel sheets of gallows, the motor is located the reel both ends respectively with the reduction gear, the motor is connected with the input shaft of reduction gear through the shaft coupling, the final stage gear of reduction gear is connected with the output shaft, the output shaft is connected with the reel, two wire rope's one end is fixed respectively in the middle of the reel, twine on the reel according to rope ditch direction, two wire rope's the other end passes two lifting hooks respectively and is fixed in the steel sheet lower extreme of gallows by the wire rope buckle, high accuracy tension sensor installs in wire rope buckle below.

Above-mentioned belt conveyor's with adjustable conveyer belt straining device, multistage taut weight include a plurality of weight boxes, the weight box comprises hanging beam, box body, apron, balancing weight, the hanging beam is steel pipe welded rectangular frame, the length direction of hanging beam is in the horizontal direction, the rectangular frame plane of hanging beam is located vertical position, the box body is the cuboid, box body fixed connection is in the both sides of hanging beam, the box body upper end has movable apron, place the balancing weight in the box body, the hanging beam both ends of a plurality of weight boxes are connected through connecting wire rope vertical order, the weight box upper end of uppermost is connected with rings through hanging wire rope, rings are hung with the lifting hook of electric hoist lower extreme and are connected.

The beneficial effects of the utility model are as follows:

The tensioning roller can slide on the sliding guide rod of the tensioning roller through the tensioning roller frame, the tensioning roller frame can drive the electric hoist to move up and down, and the lifting hook of the electric hoist is connected with the multi-stage tensioning heavy hammer in a lifting manner. When the belt conveyor is started, the multi-stage tensioning heavy hammer can provide conveyor tension which is 1.3-1.5 times of running tension for the tensioning roller, after the starting is completed, the electric hoist slowly lowers the multi-stage vertical heavy hammer, a weight box in the multi-stage vertical heavy hammer falling to the ground loses the tension for the tensioning roller, and the lowering is stopped after the whole tension reaches the preset tension. The tensioning roller can provide proper running tension for the conveying belt, so that the overall running load of the belt conveyor is reduced, and the aims of saving energy and reducing consumption are achieved.

The utility model has simple and reasonable structure, convenient use, stable and reliable effect and extremely low running cost, skillfully utilizes the adjustable counterweight to adjust the tension of the belt, is the first creation of vertical tensioning of the belt conveyor, has huge energy-saving potential after application, and is worth popularizing and applying in various industries.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the take-up roller frame;

FIG. 3 is a front view of the electric block;

FIG. 4 is a rear view of the electric block;

FIG. 5 is a schematic illustration of the connection of the motor, reducer and spool;

FIG. 6 is a schematic diagram of a multi-stage tensioning weight;

FIG. 7 is a partial schematic view of a multistage tensioner weight.

The device is characterized by comprising a conveying belt 1, a bend drum fixed beam 2, a bend drum seat 3, a bend drum 4, a tension drum sliding guide rod 5, a tension drum frame 6, a tension drum 7, an electric hoist 8, a multi-stage tension heavy hammer 9, a sliding sleeve 10, a bearing seat plate 11, a bearing seat 12, a fixing bolt 13, a cross beam 14, a shield 15, a hanging bracket 16, a winding drum 17, a motor 18, a speed reducer 19, an input shaft 20, an output shaft 21, a coupling 22, a steel wire rope 23, a hanging hook 24, a steel wire rope buckle 25, a high-precision tension sensor 26, a weight box 27, a hanging ring 28, a hanging steel wire rope 29, a connecting steel wire rope 30, a hanging beam 31, a box body 32, a cover plate 33 and a balancing weight 34.

Detailed Description

The utility model is composed of a bend pulley fixed beam 2, a bend pulley seat 3, a bend pulley 4, a tension pulley sliding guide rod 5, a tension pulley frame 6, a tension pulley 7, an electric hoist 8 and a multi-stage tension heavy hammer 9.

Fig. 1 shows that the tension roller 7 is added in the middle of the return belt of the conveyer belt, the tension roller 7 is used for applying tension force to the conveyer belt, the aim of increasing starting tension is fulfilled, and the tension force of the tension roller 7 can be adjusted, so that the tension of the conveyer belt is reduced during operation, the overall operation load of the belt conveyer is reduced, and energy conservation and consumption reduction are realized.

Fig. 1 shows that, in order to achieve the above object, two bend pulleys 4 are added in the return belt of the conveyor, so that the tensioning drum 7 can tension the conveyor belt 1, a multi-stage tensioning weight 9 is hoisted below the tensioning drum 7, a tensioning force is applied to the tensioning drum 7, and an electric hoist 8 is added, so that the gravity of the multi-stage tensioning weight 9 can be adjusted, and the tension of the conveyor belt 1 during operation can be adjusted.

Fig. 1 shows that a bend pulley fixed beam 2 is arranged below a conveyor belt 1 of the belt conveyor, the bend pulley fixed beam 2 is two parallel horizontal beams, the length direction of each horizontal beam is along the running direction of the conveyor belt 1, and two ends of each horizontal beam are respectively connected with a building embedded part. Two redirecting roller seats 3 are respectively fixed on the two horizontal beams, and two ends of a roller shaft of the two redirecting rollers 4 are respectively connected with the redirecting roller seats 3 on the two horizontal beams in a mounting way.

Fig. 1 shows that the take-up drum 7 is located below between the two direction-changing drums 4, the take-up drum 7 is parallel to the direction-changing drums 4, and one end of the conveyor belt 1 passes down around the lower surface of the take-up drum 7 by the upper surface of one direction-changing drum 4 and up through the upper surface of the other direction-changing drum 4.

Fig. 1 shows that two tensioning roller sliding guide rods 5 are vertically arranged, the two tensioning roller sliding guide rods 5 are respectively positioned between the two direction changing rollers 4, the upper ends of the two tensioning roller sliding guide rods 5 are respectively and vertically welded and connected with the lower surfaces of two horizontal beams of the direction changing roller fixing beam 2, and the lower ends of the two tensioning roller sliding guide rods 5 are respectively connected with a building embedded part.

Fig. 1 shows that the tensioning roller frame 6 is located between two tensioning roller sliding guide rods 5, and the outer sides of two ends of the tensioning roller frame 6 are respectively in sliding fit with the tensioning roller sliding guide rods 5. The two ends of the drum shaft of the tensioning drum 7 are respectively connected with the inner sides of the two ends of the tensioning drum frame 6.

Fig. 1 and 2 show that the tensioning roller frame 6 comprises a sliding sleeve 10, a bearing seat plate 11, a bearing seat 12, a fixing bolt 13, a cross beam 14 and a shield 15. The two sliding sleeves 10 are respectively of a plate frame structure with a U-shaped section, and can be manufactured by using channel steel, the two sliding sleeves 10 are sleeved on the inner sides of the two tensioning roller sliding guide rods 5, the bottom plates of the U-shaped plate frames of the two sliding sleeves 10 are respectively and vertically welded with a horizontal bearing seat plate 11, the bearing seat plate 11 is provided with a connecting hole, the two bearing seats 12 are respectively fixed on the bearing seat plate 11 by fixing bolts 13, bearings are arranged in the bearing seats 12, and two ends of a roller shaft of the tensioning roller 7 are respectively connected with the bearings of the bearing seats 12. The cross beam 14 of the tensioning roller frame 6 is horizontally arranged, and two ends of the cross beam 14 are respectively welded with the lower parts of the two sliding sleeves 10. The shield 15 is located above the take-up drum 7, and both ends of the shield 15 are connected to the upper ends of the two sliding sleeves 10, respectively. The tensioning roller 7 can slide on the tensioning roller sliding guide 5 by means of the tensioning roller frame 6, so that the conveyor belt 1 is tensioned.

Fig. 1, 3 and 4 show that the electric hoist 8 is mounted at the middle bottom of the tensioning roller frame 6, the electric hoist 8 is connected with the multistage tensioning heavy hammer 9 in a hoisting manner through the lifting hook 24, and the gravity of the multistage tensioning heavy hammer 9 is transmitted to the tensioning roller frame 6 and the tensioning roller 7 through the electric hoist 8 to apply tensioning force to the conveying belt 1.

Fig. 1, 3, 4 and 5 show that the electric hoist 8 comprises a hanger 16, a winding drum 17, a motor 18, a speed reducer 19, a steel wire rope 23, a lifting hook 24, a high-precision tension sensor 26 and a steel wire rope buckle 25. The hanger 16 is composed of two vertical steel plates which are welded on the lower end face of the cross beam 14 of the tensioning roller frame 6 in parallel and opposite to each other, the winding drum 17 is arranged between the two steel plates of the hanger 16, the motor 18 and the speed reducer 19 are respectively arranged at two ends of the winding drum 17, the motor 18 directly drives an input shaft 20 of the speed reducer 19 through a coupling 22, and drives an output shaft 21 through a final stage big gear of the speed reducer 19 to drive the winding drum 17 to rotate. One ends of two steel wire ropes 23 are respectively fixed in the middle of the winding drum 17, are wound on the winding drum 17 according to the rope groove direction, and the other ends of the two steel wire ropes 23 respectively penetrate through two lifting hooks 24 and are fixed at the lower ends of steel plates of the lifting frames 16 through steel wire rope buckles 26, and high-precision tension sensors 26 are arranged below the steel wire rope buckles 25.

Fig. 1, 6 and 7 show that the multi-stage tensioning weight 9 comprises a plurality of weight boxes 27. The weight box 27 comprises hanging beam 31, box body 32, apron 33, balancing weight 34, and hanging beam 31 is steel pipe welded rectangular frame, and the length direction of hanging beam 31 is in the horizontal direction, and the rectangular frame plane of hanging beam 31 is located vertical position, and box body 32 is the cuboid, box body 32 fixed connection in the both sides of hanging beam 31, and box body 32 upper end has movable apron 33, places balancing weight 34 in the box body 32. The counterweight 34 is made of steel plate and has standard unit weight, which is beneficial to the adjustment and calculation of the counterweight. The balancing weights 34 are uniformly placed in the balancing weight box 27 according to actual needs.

Fig. 1, 6 and 7 show that two ends of a hanging beam 31 of a plurality of weight boxes 27 are vertically and sequentially connected through a connecting steel wire rope 30, the upper end of the uppermost weight box 27 is connected with a hanging ring 28 through a hanging steel wire rope 29, and the hanging ring 28 is connected with a hanging hook 24 at the lower end of the electric hoist 8 in a hanging way.

Fig. 1, 6 and 7 show that the case 32 and the cover 33 are welded from steel plates. The overall shape is concave and convex, and when a plurality of weight boxes 27 drop down in sequence, the box bodies 32 and the cover plates 33 of the upper and lower weight boxes 27 can be automatically overlapped and kept stable.

The application process of the utility model is as follows:

Firstly, calculating the tension force which the tension roller 7 should apply to the conveyor belt 1 according to the starting tension of the conveyor belt 1, wherein the tension force value comprises the total weight of the tension roller frame 6, the tension roller 7, the electric hoist 8 and the multi-stage tension heavy hammer 9, and subtracting the weight of the tension roller frame 6, the tension roller 7 and the electric hoist 8 from the total weight to obtain the weight of the multi-stage tension heavy hammer 9;

the number of weight boxes 27 of the multistage tensioning heavy hammer 9 is set, and practically required weight blocks 34 are placed in the weight boxes 27;

before the conveyor is started, the electric hoist 8 is started to lift the tensioning roller frame 6, the tensioning roller 7, the electric hoist 8 and the multi-stage tensioning heavy hammer 9 to leave the ground, and the tensioning force of the tensioning roller 7 on the conveyor belt 1 is equal to the designed starting tension;

the conveyor is started, and under the condition of reasonable starting tension, the belt conveyor can be started by the full counterweight;

Finally, after starting, the electric hoist 8 slowly descends the multi-stage tensioning heavy hammer 9, the weight box 27 falling to the ground loses the tension of the conveyer belt tensioning device, and after the whole tension reaches the running tension of the conveyer belt 1, the electric hoist 8 stops descending, and the belt conveyer normally runs;

When the belt conveyor is stopped, an operator starts the electric hoist 8 to lift upwards, so that the tensioning force of the tensioning roller 7 on the conveyor belt 1 reaches the designed starting tension again, and preparation is made for the next starting of the belt conveyor.

One embodiment of the utility model is as follows:

The length of the fixed beam 2 of the bend pulley is 2150mm, the width of the section is 100mm, and the height is 50mm;

The length of the redirecting roller seat 3 is 350mm, the width is 100mm, and the height is 350mm;

the length of the direction-changing drum 4 is 1400mm, and the diameter is 800mm;

The length of the tensioning roller sliding guide rod 5 is 8500mm, and the diameter is 160mm;

The length of the sliding sleeve 10 of the tensioning roller frame 6 is 500mm, the width is 220mm, the height is 1000mm, the length of the bearing seat plate 11 is 500mm, the width is 100mm, the thickness is 16mm, the length of the cross beam 14 is 1650mm, the width is 180mm, the height is 64mm, the length of the shield 15 is 1680mm, the width is 500mm, and the height is 230mm;

The length of the tensioning roller 7 is 1400mm, and the diameter is 800mm;

The length of the winding drum 17 of the electric hoist 8 is 640mm, the diameter is 220mm, the model of the motor 18 is DY-100L-8, the model of the speed reducer 19 is ZLY07, and the model of the high-precision tension sensor 26 is TLL-1-50KN;

The hanging beam 31 of the weight box 27 has a length of 1420mm, a width of 180mm, a diameter of 50mm, a length of 1250mm, a width of 300mm, a height of 200mm, a length of 600mm for the connection wire rope 30, a diameter of 15mm, a length of 1250mm, a width of 430mm, and a thickness of 8mm for the cover plate 33.

Claims (4)

1. The utility model provides an adjustable conveyer belt straining device of belt conveyor, which is characterized in that it includes bend pulley fixed beam (2), bend pulley seat (3), bend pulley (4), tensioning pulley sliding guide rod (5), tensioning pulley frame (6), tensioning pulley (7), electric block (8), multistage tensioning weight (9), bend pulley fixed beam (2) are two parallel horizontal beams, two horizontal beams are located conveyer belt (1) below of belt conveyer, the length direction of two horizontal beams is along the direction of travel of conveyer belt (1), two ends of two horizontal beams are connected with building built-in fitting respectively, be fixed with two bend pulley seats (3) respectively on two horizontal beams respectively, two bend pulley (4) are parallel to be placed above two horizontal beams, the drum shaft both ends on two bend pulley (4) are connected with bend pulley seat (3) installation respectively on two horizontal beams, two tensioning pulley sliding guide rod (5) are perpendicular to be placed, two tensioning pulley sliding guide rod (5) are located between two bend pulley (4) respectively, the upper end of two tensioning pulley sliding guide rod (5) are connected with two built-in fitting (7) respectively between the vertical connection of two vertical side of the lower surface of built-in fitting (7), the tensioning roller (7) is parallel with the bend roller (4), one end of the conveying belt (1) downwards bypasses the lower surface of the tensioning roller (7) through the upper surface of the bend roller (4), upwards passes through the upper surface of the other bend roller (4), the tensioning roller frame (6) is located between two tensioning roller sliding guide rods (5), the outer sides of the two ends of the tensioning roller frame (6) are respectively in sliding fit with the tensioning roller sliding guide rods (5), the two ends of the roller shaft of the tensioning roller (7) are respectively connected with the inner sides of the two ends of the tensioning roller frame (6), the electric hoist (8) is mounted at the middle bottom of the tensioning roller frame (6), and the lifting hook (24) of the electric hoist (8) is connected with the multistage tensioning heavy hammer (9) in a lifting mode.

2. The belt tensioner of claim 1, wherein the tensioner roller frame (6) comprises sliding sleeves (10), bearing seat plates (11), bearing seats (12), fixing bolts (13), cross beams (14) and shields (15), the two sliding sleeves (10) are respectively of a U-shaped section plate frame structure, the U-shaped plate frames of the two sliding sleeves (10) are sleeved on the inner sides of the sliding guide rods (5) of the two tensioner rollers, the outer walls of the bottom plates of the U-shaped plate frames of the two sliding sleeves (10) are respectively and vertically welded with the horizontal bearing seat plates (11), the bearing seat plates (11) are provided with connecting holes, the two bearing seats (12) are respectively fixed on the bearing seat plates (11) through the fixing bolts (13), bearings are installed in the bearing seats (12), two ends of a roller shaft of the tensioner roller frame (7) are respectively connected with the bearings of the bearing seats (12), the cross beams (14) of the tensioner roller frame (6) are horizontally arranged, two ends of the cross beams (14) are respectively welded with the lower parts of the two sliding sleeves (10), and the shields (15) are positioned above the two ends of the tensioner roller frame (7) and are respectively connected with the two ends of the two sliding sleeves (15).

3. The belt tensioner of claim 1, wherein the electric hoist (8) comprises a hanger (16), a reel (17), a motor (18), a speed reducer (19), a wire rope (23), a hook (24), a wire rope buckle (25) and a high-precision tension sensor (26), the hanger (16) is composed of two perpendicular steel plates, the two steel plates are welded on the lower end face of a beam (14) of the tensioning reel frame (6) in parallel and opposite directions, the reel (17) is arranged between the two steel plates of the hanger (16), the motor (18) and the speed reducer (19) are respectively positioned at two ends of the reel (17), the motor (18) is connected with an input shaft (20) of the speed reducer (19) through a coupler (22), a final-stage large gear of the speed reducer (19) is connected with an output shaft (21), one end of each of the two wire ropes (23) is respectively fixed in the middle of the reel (17), the other ends of the two wire ropes (23) are respectively wound on the reel (17) in a groove direction, the other ends of the two wire ropes (23) respectively pass through the hook (24) of the two steel plates (16) and are respectively fixed at two ends of the hanger (25), the high-precision tension sensor (26) is arranged below the steel wire rope buckle (25).

4. The belt tensioner of claim 1, wherein the multi-stage tensioner weight (9) comprises a plurality of weight boxes (27), the weight boxes (27) are composed of hanging beams (31), box bodies (32), cover plates (33) and balancing weights (34), the hanging beams (31) are rectangular frames welded by steel pipes, the length direction of the hanging beams (31) is in the horizontal direction, the plane of the rectangular frames of the hanging beams (31) is positioned at the vertical position, the box bodies (32) are cuboid, the box bodies (32) are fixedly connected to two sides of the hanging beams (31), movable cover plates (33) are arranged at the upper ends of the box bodies (32), balancing weights (34) are placed in the box bodies (32), two ends of the hanging beams (31) of the weight boxes (27) are connected in a vertical sequence through connecting steel wire ropes (30), the upper ends of the uppermost weight boxes are connected with hanging rings (28) through hanging steel wire ropes (29), and hanging rings (28) are connected with hanging hooks (24) at the lower ends of the electric hoist (8).