CN216510881U

CN216510881U - Tensioning device of embedded scraper conveyor

Info

Publication number: CN216510881U
Application number: CN202123091900.6U
Authority: CN
Inventors: 李健; 李洪庆; 苑东建
Original assignee: Weifang Hairun Mechanical Equipment Manufacturing Co ltd
Current assignee: Weifang Hairun Mechanical Equipment Manufacturing Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-05-13
Anticipated expiration: 2031-12-10

Abstract

The utility model discloses a tensioning device of an embedded scraper conveyor, which belongs to the technical field of conveyors and comprises three guide rollers and a transmission belt outside the guide rollers, wherein roll shafts are inserted in the guide rollers positioned on the upper side and the lower side, a movable shaft is inserted in the guide roller positioned in the middle part, side plates are arranged on two sides of the guide roller, a plurality of groups of support tubes are arranged on the inner side of the transmission belt, stud bolts are inserted in the support tubes, a wheel shaft is arranged between the two support tubes on the lower side, double grooved wheels are sleeved at two ends of the wheel shaft, an outer cable and an inner cable are arranged in the double grooved wheels, the outer cable is connected with a balancing weight, the inner cable is connected with the movable shaft, an inner shaft hole and an outer shaft hole are arranged at the end part of the movable shaft, a guide shaft is arranged in the end part of the movable shaft, a roller groove is arranged in the middle part of the side plate, bending pieces formed by bending are arranged on two sides of the roller groove, and roller holes and support holes are arranged at the upper end and the lower end of the side plate, this buried scraper conveyor overspeed device tensioner has comparatively invariable tensioning effect, is fit for generally using widely.

Description

Tensioning device of embedded scraper conveyor

Technical Field

The utility model belongs to the technical field of conveyors, and particularly relates to a tensioning device of an embedded scraper conveyor.

Background

The belt conveyor is the main mode of bulk material conveying at present, and can be divided into a loading and supplementing integrated conveyor, a belt conveyor, a spiral conveyor, a bucket elevator, a roller conveyor, a plate chain conveyor, a mesh belt conveyor and a chain conveyor according to the operation mode.

The existing tensioning devices of belt conveyors mostly utilize the elastic action of springs to realize tensioning, and the tensioning mode is easy to fail along with the increase of the service time, and the main reasons are that the performance of an elastic element is reduced along with the increase of the service time, and the effectiveness of the tensioning devices even if the tensioning devices work normally is reduced along with the increase of the service time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tensioning device of an embedded scraper conveyor, which solves the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: a tensioning device of an embedded scraper conveyor comprises three guide rollers and a transmission belt outside the guide rollers, wherein roller shafts are inserted in the guide rollers positioned on the upper side and the lower side, movable shafts are inserted in the guide rollers positioned in the middle, side plates are arranged on two sides of the guide rollers, a plurality of groups of support pipes are arranged on the inner side of the transmission belt, stud bolts are inserted in the support pipes, a wheel shaft is arranged between the two support pipes on the lower side, double grooved wheels are sleeved at two ends of the wheel shaft, outer cables and inner cables are arranged in the double grooved wheels, the outer cables are connected with balancing weights, the inner cables are connected with the movable shafts, inner shaft holes and outer shaft holes are formed in the end parts of the movable shafts, and guide shafts are arranged in the end parts of the movable shafts;

the roller-type roller bearing is characterized in that a roller groove is formed in the middle of the side plate, bending pieces formed by bending are arranged on two sides of the roller groove, and a roller hole and a support hole are formed in the upper end and the lower end of the side plate.

Preferably, the end part of the stud bolt is sleeved with a nut, and two ends of the supporting tube are propped against the side plates.

Preferably, the guide shaft is fixed inside the inner shaft hole, two ends of the guide shaft penetrate through holes in the bending sheet, the end part of the movable shaft penetrates through the roller groove, one end of the inner cable back to the double grooved pulley is fixed inside the outer shaft hole, and one end of the outer cable back to the double grooved pulley is fixed with the balancing weight.

Preferably, the side plates are of an integrated structure formed by shearing and bending steel plates.

Preferably, the roller and the loose axle rotate with the deflector roll and are connected, the tip of roller is fixed inside the roller hole, stud's tip is located inside the supporting hole.

This buried scraper conveyor overspeed device tensioner's technological effect and advantage: the double grooved wheels are pulled to pull the movable shaft and the guide rollers outside the movable shaft to realize tensioning under the action of the gravity of the balancing weight, the double grooved wheels are essentially a stress application roller wheel, the tension force applied to the movable shaft by the balancing weight can be amplified, and compared with a conventional spring tensioning scheme, the tensioning scheme has better reliability and cannot cause the problem of reduced tensioning effect along with the increase of service time;

the excircle of stay tube has played the effect of supporting the drive belt, has avoided using the problem of layer board below the drive belt, adopts this scheme to let the more good deformation of conveyer belt in order to absorb the impact moreover.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic diagram of a separated state structure according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of the structure at A in FIG. 2 according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a side plate according to an embodiment of the present invention.

In the figure: 1. a double grooved pulley; 101. an outer cable; 102. an inner cable; 2. a nut; 3. a side plate; 301. roll holes; 302. a roller groove; 303. supporting holes; 304. bending the sheet; 4. a transmission belt; 5. a guide shaft; 6. a balancing weight; 7. supporting a tube; 8. a stud bolt; 9. a wheel axle; 10. a guide roller; 11. a roll shaft; 12. a movable shaft; 1201. an inner shaft hole; 1202. an outer axle hole.

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.

Referring to fig. 1-4, a tensioning device for an embedded scraper conveyor comprises three guide rollers 10 and a transmission belt 4 outside the guide rollers 10, wherein a roller shaft 11 is inserted into each guide roller 10 positioned on the upper side and the lower side, a movable shaft 12 is inserted into each guide roller 10 positioned in the middle, side plates 3 are arranged on two sides of each guide roller 10, a plurality of groups of support pipes 7 are further arranged on the inner side of the transmission belt 4, the support pipes 7 maintain the relative positions of the two side plates 3, a stud 8 is inserted into each support pipe 7, a wheel shaft 9 is arranged between the two support pipes 7 positioned on the lower side, two ends of the wheel shaft 9 are sleeved with a double-grooved wheel 1, an outer cable 101 and an inner cable 102 are arranged in each double-grooved wheel 1, the outer cable 101 and the inner cable 102 are both made of elastic steel wire ropes 1201, the outer cable 101 is connected with a counter weight 6, the inner cable 102 is connected with the movable shaft 12, an inner shaft hole and an outer shaft hole 1202 are formed at the end of the movable shaft 12, a guide shaft 5 is arranged in the end of the movable shaft 12, the guide shaft 5 restricts the moving state of the movable shaft 12.

Referring to fig. 2-4, a roller groove 302 is formed in the middle of the side plate 3, bending pieces 304 formed by bending are arranged on two sides of the roller groove 302, a roller hole 301 and a support hole 303 are formed in the upper end and the lower end of the side plate 3, a nut 2 is sleeved on the end portion of the stud bolt 8, two ends of the support pipe 7 are abutted to the side plate 3, and the nut 2 completes the fixing of the side plate 3.

Referring to fig. 2 to 4, a guide shaft 5 is fixed inside an inner shaft hole 1201, two ends of the guide shaft 5 penetrate through holes in a bending piece 304, the guide shaft 5 is connected with the bending piece 304 in a sliding manner, an end of a movable shaft 12 penetrates through a roller groove 302, one end of an inner cable 102, which faces away from a double sheave 1, is fixed inside an outer shaft hole 1202, one end of an outer cable 101, which faces away from the double sheave 1, is fixed with a counterweight 6, a side plate 3 is an integrated structure formed by shearing and bending a steel plate, a roller shaft 11 and the movable shaft 12 are connected with a guide roller 10 in a rotating manner, an end of the roller shaft 11 is fixed inside a roller hole 301, and an end of a stud 8 is located inside a supporting hole 303.

This buried scraper conveyor overspeed device tensioner, outer cable 101 is pulled down to the action of gravity of balancing weight 6, outer cable 101 will stimulate double sheave 1 to rotate, double sheave 1 is rotatory will stimulate inner cable 102, inner cable 102 stimulates loose axle 12 to remove, loose axle 12 removes and will stimulate its outside deflector roll 10 tensioning drive belt 4, thereby realize overspeed device tensioner's technical effect, guide shaft 5 is fixed in the tip of loose axle 12, loose axle 12 passes through guide shaft 5 and bending piece 304 restriction its orbit of motion, two groove diameters on the double sheave 1 excircle are different, the diameter in the groove that outer cable 101 was located is greater than the diameter in inner cable 102 place groove.

The above description is only for the preferred embodiment of the present invention, but the scope of the utility model is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the utility model, and equivalent alternatives or modifications according to the technical solution of the utility model and the practical idea thereof should be covered by the scope of the utility model.

Claims

1. An embedded scraper conveyor tensioning device, comprising a guide roller (10) and a transmission belt (4) outside the guide roller, characterized in that: three guide rollers (10) are arranged, a roller shaft (11) is inserted in the guide rollers (10) positioned at the upper side and the lower side, a movable shaft (12) is inserted in the guide roller (10) positioned at the middle part, side plates (3) are arranged on two sides of the guide roller (10), a plurality of groups of supporting tubes (7) are arranged on the inner side of the transmission belt (4), stud bolts (8) are inserted in the supporting tubes (7), a wheel axle (9) is arranged between the two supporting tubes (7) at the lower side, two ends of the wheel shaft (9) are sleeved with double grooved wheels (1), an outer cable (101) and an inner cable (102) are arranged in the double grooved wheels (1), the outer cable (101) is connected with a balancing weight (6), the inner cable (102) is connected with a movable shaft (12), an inner shaft hole (1201) and an outer shaft hole (1202) are formed in the end portion of the movable shaft (12), and a guide shaft (5) is arranged in the end portion of the movable shaft (12);

the roller-type roller bearing is characterized in that a roller groove (302) is formed in the middle of the side plate (3), bending pieces (304) formed by bending are arranged on two sides of the roller groove (302), and a roller hole (301) and a support hole (303) are formed in the upper end and the lower end of the side plate (3).

2. The embedded scraper conveyor tensioning device of claim 1, characterized in that: the end portion of the stud bolt (8) is sleeved with a nut (2), and two ends of the supporting pipe (7) are propped against the side plates (3).

3. The embedded scraper conveyor tensioning device of claim 1, characterized in that: the guide shaft (5) is fixed in the inner shaft hole (1201), the two ends of the guide shaft (5) penetrate through holes in the bending pieces (304), the end part of the movable shaft (12) penetrates through the roller groove (302), one end, facing away from the double grooved pulley (1), of the inner cable (102) is fixed in the outer shaft hole (1202), and one end, facing away from the double grooved pulley (1), of the outer cable (101) is fixed with the balancing weight (6).

4. The embedded scraper conveyor tensioning device of claim 1, characterized in that: the side plates (3) are of an integrated structure made of steel plates through shearing and bending.

5. The embedded scraper conveyor tensioning device of claim 1, characterized in that: roller (11) and loose axle (12) rotate with deflector roll (10) and are connected, the tip of roller (11) is fixed inside roller hole (301), the tip of stud (8) is located inside expanding hole (303).