CN212402459U

CN212402459U - Self-adaptive tensioning system of belt conveyor

Info

Publication number: CN212402459U
Application number: CN202020939730.9U
Authority: CN
Inventors: 张营章; 王坚; 赵勇; 朱浩; 薛虎强; 霍佳
Original assignee: Huadian Heavy Industries Co Ltd
Current assignee: Huadian Technology Co.,Ltd.
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-01-26
Anticipated expiration: 2030-05-28

Abstract

The utility model relates to a belt conveyor technical field, concretely relates to taut system of belt feeder self-adaptation. Taut system of belt feeder self-adaptation includes: a belt; a tensioning mobile platform provided at a first end thereof with at least one tensioning mobile platform drum adapted to wind said belt; a second end of the tensioning mobile platform pulley is provided with a tensioning mobile platform pulley which is suitable for being pulled by a steel wire rope; the heavy hammer box is suitable for dragging the steel wire rope through a pulley set; the heavy hammer box is in sliding fit with the X section of the steel wire rope, the tensioning mobile platform pulley is in sliding fit with the Y section of the steel wire rope, and then the tensioning mobile platform roller pulls the Z section of the belt to move, wherein X is more than or equal to 2, Y is more than or equal to 1, and Z is more than or equal to 2. The utility model discloses can shorten taut frame length, reduce weight tower height, and then shorten taut distance, satisfy the construction demand in narrow and small construction place, practice thrift the cost.

Description

Self-adaptive tensioning system of belt conveyor

Technical Field

The utility model relates to a belt conveyor technical field, concretely relates to taut system of belt feeder self-adaptation.

Background

In the process of conveying materials by the belt conveyor, due to the fact that the belt is high in elasticity, the tensioning and loosening degrees of the belt conveyor under the conditions of bearing load and not bearing load are different, particularly when the belt conveyor conveys materials, the belt loosening directly influences and reduces friction force between the belt and the power driving wheel, and the belt must be tensioned if the tension force of the belt conveyor is kept. Meanwhile, the common polyurethane belt is made of soft materials, the belt is aged along with the increase of the service time, the tension force is reduced along with the aging of the belt, and the conveying capacity of the belt conveyor is ensured only by tensioning the belt.

The conventional tensioner is classified into a spiral type, a car type and a vertical type. As the most applied vehicle type belt tensioning device, the tensioning travel of the belt conveyor with ultra-long distance and large transportation capacity is very long due to limited space, so that the tensioning tower is too high, the tensioning frame is too long, the manufacturing cost is high, the belt conveyor is not economical, and even the construction requirement cannot be met due to the limited space; if the conveyer belt is changed from a common polyurethane belt to a steel wire rope core belt, although the tensioning stroke is shortened, more cost is added, and the method is not economical.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming among the prior art because long distance, heavy traffic belt feeder atress are big, lead to the defect of taut stroke overlength to a belt feeder self-adaptation tensioning system that can shorten taut frame length, shorten taut pylon height under satisfying the atress demand condition is provided.

In order to solve the technical problem, the utility model provides a pair of taut system of belt feeder self-adaptation, include:

the belt is a continuous belt which is connected end to end;

a tensioning mobile platform provided at a first end thereof with at least one tensioning mobile platform drum adapted to wind said belt; a second end of the tensioning mobile platform pulley is provided with a tensioning mobile platform pulley which is suitable for being pulled by a steel wire rope;

the gravity generating device is suitable for drawing the steel wire rope through the pulley block;

the gravity generating device is in sliding fit with the X section of the steel wire rope, the tensioning mobile platform pulley is in sliding fit with the Y section of the steel wire rope, and then the tensioning mobile platform roller pulls the Z section of the belt to move, wherein X is more than or equal to 2, Y is more than or equal to 1, and Z is more than or equal to 2.

Further, the belt feeder self-adaptation tensioning system still includes: the combined turnabout drum seat comprises at least two combined turnabout drums; the combined direction-changing roller seat is suitable for respectively changing directions of two ends of the belt conveyed down by the belt tower, is suitable for being matched with the tensioning movable platform and increases the number of winding sections of the belt on at least one tensioning movable platform roller of the tensioning movable platform.

Furthermore, after two ends of the belt are respectively redirected by the first combination direction-changing drum and the second combination direction-changing drum, the first end of the belt winds through the first tensioning moving platform drum, and the second end of the belt winds through the second tensioning moving platform drum and/or the third tensioning moving platform drum, and is connected in a converging manner after respectively winding through two sides of the third combination direction-changing drum.

Further, taut system of belt feeder self-adaptation still includes the level and changes to the pulley holder, and it includes:

the first traction end is suitable for fixing one end of the steel wire rope;

and the horizontal direction-changing pulley is suitable for being in sliding connection with the tensioning mobile platform pulley through the steel wire rope and horizontally changing the direction of the steel wire rope.

Further, taut system of belt feeder self-adaptation still includes fixed pulley assembly, and it includes:

the second traction end fixes the other end of the steel wire rope;

the first fixed pulley and the second fixed pulley are matched with a first movable pulley and a second movable pulley on the gravity generating device through and arranged on the gravity generating device, so that the gravity generating device can pull the steel wire rope.

Furthermore, the belt conveyor self-adaptive tensioning system further comprises a vertical direction-changing pulley seat, the vertical direction-changing pulley seat is arranged between the horizontal direction-changing pulley seat and the fixed pulley assembly, and the vertical direction-changing pulley is arranged on the vertical direction-changing pulley seat to vertically change the direction of the steel wire rope.

Furthermore, the bottom of the tensioning mobile platform is provided with a travelling wheel, and the travelling wheel is suitable for driving the tensioning mobile platform to translate along the tensioning frame.

Furthermore, the self-adaptive tensioning system of the belt conveyor further comprises a dragging device, wherein the dragging device is arranged on the tensioning frame and used for carrying out follow-up lifting on the multiple sections of the belt between the combined direction-changing roller seat and the tensioning moving platform.

Further, the bottom of the tensioning moving platform is also provided with a guide wheel assembly, and the guide wheel assembly is suitable for sliding along the tensioning frame to conduct guiding and positioning.

Further, be provided with taut redirection roller seat on the belt tower, taut redirection roller seat includes: a first take-up bend pulley adapted to bend and direct the first end of the belt to the first combination bend pulley;

a second take-up redirection drum adapted to redirect and direct the belt second end to the second combination redirection drum.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a taut system of belt feeder self-adaptation is applicable to the belt feeder of extra long distance, heavy freight volume, can shorten taut frame length, reduces weight tower height to can satisfy the construction demand in narrow and small construction place, practice thrift manufacturing cost, economic benefits is considerable, strong adaptability.

2. The utility model provides a taut system of belt feeder self-adaptation, it is right through combination change to the roller seat with taut moving platform's cooperation is realized the belt is in the last winding section number of taut moving platform, and then right during the tensile same length of belt, reduce taut moving platform's displacement shortens taut stroke.

3. The utility model provides a taut system of belt feeder self-adaptation, through the combination changes to the cylinder seat and sets up a plurality of combinations and changes to the cylinder, realizes the belt is in the combination changes to the cylinder seat with winding between the taut moving platform plays the effect of sharing the extra atress of belt tower simultaneously.

4. The utility model provides a taut system of belt feeder self-adaptation, wire rope warp behind the taut moving platform pulley, by level changes to the pulley and carries out the level and changes to, makes level changes to pulley holder one side and bears the pulling force of doubly wire rope, and the opposite side bears the pulling force of doubly wire rope, thereby makes level changes to the pulley holder and shares the atress of weight tower, reduces the operational risk of weight tower.

5. The utility model provides a taut system of belt feeder self-adaptation, the leading wheel subassembly with the travelling wheel set up respectively in the upper and lower both sides of guide rail, thereby will taut moving platform presss from both sides tight the installation on the guide rail, avoid taut moving platform is because the uneven reason of atress makes travelling wheel perk or skew guarantee taut moving platform operates steadily.

6. The utility model provides a taut system of belt feeder self-adaptation, the traction device set up in on the taut frame, can be to the multistage the belt carries out the follow-up and lifts, guarantees the operate steadily of belt.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a first state of the self-adaptive tensioning system of the belt conveyor of the present invention;

fig. 2 is a schematic diagram of a second state of the self-adaptive tensioning system of the belt conveyor of the present invention;

fig. 3 is a schematic layout of the self-adaptive tensioning system of the belt conveyor of the present invention;

FIG. 4 is a force analysis diagram of the self-adaptive tensioning system of the belt conveyor of the present invention;

fig. 5 is a front view of the tensioning mobile platform of the present invention;

fig. 6 is a top view of the tensioning mobile platform of the present invention;

FIG. 7 is a schematic view of the combined direction-changing roller base of the present invention;

fig. 8 is a schematic view of the horizontal direction-changing pulley seat of the present invention;

FIG. 9 is a front view of the towing attachment of the present invention;

FIG. 10 is a left side view of the towing attachment of the present invention;

fig. 11 is an enlarged view of a portion a in fig. 10.

Description of reference numerals:

100-a belt; 200-a steel wire rope;

11-belt tower, 111-entrainment device;

12-tensioning direction-changing roller seat, 121-first tensioning direction-changing roller, 122-second tensioning direction-changing roller;

13-combined direction-changing roller seat, 131-first combined direction-changing roller, 132-second combined direction-changing roller and 133-third combined direction-changing roller;

20-tensioning carriage, 201-guide rail, 202-guide rail guide;

21-tensioning the mobile platform; 211-a first taut moving platform drum, 212-a second taut moving platform drum, 213-a third taut moving platform drum, 214-a taut moving platform pulley, 215-a first taut moving platform travelling wheel, 216-a second taut moving platform travelling wheel, 217-a guide wheel assembly;

22-horizontal direction-changing pulley seat, 221-horizontal direction-changing pulley, 222-first traction end;

23-vertical redirection pulley seat, 231-vertical redirection pulley;

24-a towing device, 241-a first carrier roller, 242-a second carrier roller, 243-a third carrier roller, 244-a first towing running wheel, 245-a second towing running wheel, 246-a vertical positioning guide wheel, 247-a horizontal positioning guide wheel, 248-a through plate, 2411-a first carrier roller positioning piece, 2421-a second carrier roller positioning piece and 2422-a second carrier roller fixing position;

25-towing a guide chain;

26-a guide rope;

31-weight tower; 32-weight box, 321-first movable pulley, 322-second movable pulley;

33-fixed pulley assembly, 331-first fixed pulley, 332-second fixed pulley, 333-second traction end.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Fig. 1 and fig. 2 are combined to show a first state schematic diagram and a second state schematic diagram of the self-adaptive tensioning system of the belt conveyor of the present invention, wherein the first state schematic diagram is a schematic diagram of positions of the structural units when the belt is relatively tight, and at this time, the belt conveyor is in an initial installation; the second state diagram is the position diagram of each structural unit when the belt is relatively loose, and at the moment, the belt conveyor reaches the stretching limit state due to elastic extension and permanent extension.

A belt feeder adaptive tensioning system comprising:

the belt 100 is a continuous belt which is connected end to end, and the belt 100 is a belt;

a mobile tensioning platform 21 provided at a first end thereof with at least one mobile tensioning platform roller suitable for winding said belt 100; a second end of which is provided with a tensioning mobile platform pulley 214, said tensioning mobile platform pulley 214 being adapted to be pulled by the wire rope 200;

a gravity generating device adapted to pull the wire rope 200 through a pulley block;

the gravity generating device is in sliding fit with the X section of the steel wire rope 200, the tensioning mobile platform pulley 214 is in sliding fit with the Y section of the steel wire rope 200, and then the tensioning mobile platform roller pulls the Z section of the belt 100 to move, wherein X is more than or equal to 2, Y is more than or equal to 1, and Z is more than or equal to 2.

It should be noted that, as described above, "the gravity generating device is slidably engaged with the X-segment of the steel wire rope 200," where "the X-segment" does not refer to X steel wire ropes, but one steel wire rope is wound by engaging with the pulley block, so that the X-segment of the steel wire rope bears the weight of the gravity generating device. Similarly, the aforementioned "the tensioning moving platform pulley 214 is in sliding fit with the Y-section of the steel wire rope 200", wherein the "Y-section" does not refer to Y steel wire ropes, but one steel wire rope is wound by matching with the tensioning moving platform pulley 214, so that the Y-section of steel wire rope pulls the tensioning moving platform pulley 214 to move, and further drives the tensioning moving platform 21 to move. Similarly, the above-mentioned "make the tensioning moving platform roller pull the Z-segment to move the belt 100" does not refer to Z belts, but one belt is wound by matching with the tensioning moving platform roller, so that the tensioning moving platform 21 makes a follow-up motion under the pulling of the steel wire rope to the tensioning moving platform pulley 214, and further the tensioning moving platform roller on the tensioning moving platform 21 pulls the belt 100 directly connected to the Z-segment to move.

Preferably, the gravity generating device may be the weight box 32, or may be another structure capable of generating gravity or traction force, such as a traction motor, and in the present embodiment, the weight box 32 is taken as an example and described in detail.

The utility model provides a belt feeder self-adaptation tensioning system, weight case 32 through the assembly pulley with X section the wire rope 200 sliding fit, and then pull wire rope 200, wherein, X is greater than or equal to 2; under the action of the pulley block, the weight box 32 drives the steel wire rope 200 to move a.X distance every time the weight box 32 moves a distance a, wherein a is more than or equal to 0 m.

Further, the steel wire rope 200 is wound and matched with a tensioning mobile platform pulley 214, specifically, the tensioning mobile platform pulley 214 is in sliding fit with a Y section of the steel wire rope 200, wherein Y is more than or equal to 1; when the wire rope 200 pulls the tensioning moving platform pulley 214, the tensioning moving platform pulley 214 moves a distance of a.X/Y when the wire rope 200 moves a distance of a.X, wherein a is not less than 0 m.

Further, the tensioning mobile platform pulley 214 and the tensioning mobile platform roller are arranged on the tensioning mobile platform 21 together, so that the tensioning mobile platform pulley 214 drives the tensioning mobile platform roller to move under the pulling of the steel wire rope 200; the belt 100 is wound on the tensioning mobile platform roller, so that the tensioning mobile platform roller pulls the belt 100 to move in a Z section, wherein Z is more than or equal to 2, the tensioning mobile platform roller can form a movable pulley or a movable pulley block, and the belt 100 is driven to move for a distance a.X/Y.Z when the tensioning mobile platform pulley 214 moves for a distance a.X/Y, namely the tensioning mobile platform roller moves for a distance a.X/Y, wherein a is more than or equal to 0 m.

As the best implementation form of the present invention, we will take the specific implementation scheme of the belt conveyor adaptive tensioning system as an example and describe in detail below. When the weight box 32 is slidably engaged with the 4 segments of the steel wire rope 200 through the pulley block, the weight box 32 moves downward by 3 meters, and the steel wire rope 200 is driven to move by 3 × 4 to 12 meters; further, the wire rope 200 drives the tensioning moving platform pulley 214 to move, and when the tensioning moving platform pulley 214 is in sliding fit with 2 segments of the wire rope 200, on the basis of the above, the wire rope 200 moves by a distance of 12 meters, and the tensioning moving platform pulley 214 is pulled to move by a distance of 12 ÷ 2 ÷ 6 meters; further, the tensioning moving platform roller and the tensioning moving platform pulley move synchronously for a distance of 6 meters, and when the tensioning moving platform roller pulls 4 sections of the belt 100 to move, the tensioning moving platform roller moves for a distance of 6 meters, and then the belt 100 is driven to move for a distance of 6 × 4-24 meters. Since the belt is a continuous belt which is connected end to end, when the total length of the belt moves for 24 meters, the actual moving length of the belt is 24/2-12 meters. Thereby pass through the utility model provides a taut system of belt feeder self-adaptation moves down 3 meters distances at weight case 32, the 12 meters distances of belt 100 actual removal reach the tractive effect of 4 times distances, and then can reduce taut frame length half respectively, with weight tower 31 high reduction half, greatly reduced cost.

As an additional implementation form of the present invention, we take an additional implementation scheme of the belt conveyor adaptive tensioning system as an example to describe in detail below. When the weight box 32 is slidably engaged with the 6 sections of the steel wire rope 200 through the pulley block, the weight box 32 moves downward by 3 meters, and the steel wire rope 200 is driven to move by 3 × 6 to 18 meters; further, the wire rope 200 drives the tensioning moving platform pulley 214 to move, and when the tensioning moving platform pulley 214 is in sliding fit with 2 segments of the wire rope 200, on the basis of the above, the wire rope 200 moves by a distance of 18 meters, and the tensioning moving platform pulley 214 is pulled to move by a distance of 18 ÷ 2 ÷ 9 meters; further, the tensioning moving platform roller and the tensioning moving platform pulley synchronously move for a distance of 9 meters, and when the tensioning moving platform roller pulls 6 sections of the belt 100 to move, the tensioning moving platform roller moves for a distance of 9 meters, and then the belt 100 is driven to move for a distance of 6 × 9-54 meters. Since the belt is a continuous belt which is connected end to end, when the total length of the belt moves by 54 meters, the actual moving length of the belt is 54/2-27 meters. Thereby pass through the utility model provides a taut system of belt feeder self-adaptation moves down 3 meters distances at weight case 32, belt 100 actually moves 27 meters distances, reaches the tractive effect of 9 times distance.

The utility model is especially suitable for the belt conveyor with ultra-long distance and large transportation capacity, the belt conveyor has very long tensioning stroke, if the traditional tensioning device is adopted, the heavy hammer tower is too high, the tensioning frame is too long, the length of the tensioning frame and the height of the heavy hammer tower are undoubtedly increased, and the manufacturing cost is increased; more seriously, the construction requirements can not be met even due to space limitations due to the condition difference of construction sites. Consequently, the taut system of belt feeder self-adaptation that this scheme provided can shorten taut frame length, reduces weight tower height to can satisfy the construction demand in narrow and small construction place, practice thrift manufacturing cost, economic benefits is considerable, strong adaptability.

For clarity, when the belt is relatively tight, the position for tensioning the movable platform 21 and the weight box 32 is referred to the first state shown in fig. 1; the position of the belt tensioning the movable platform 21 and the weight box 32 when the belt is slack is referred to the second state shown in FIG. 2. It is obvious that after the belt is loosened, the weight box 32 moves down and drives the tightening moving platform 21 to move to the right, thereby maintaining the tension of the belt 100. Taut headtotail of belt feeder self-adaptation sets up the completion back, adjustment that can self-adaptation the length of belt 100 when belt 100 appears laxing, automatic tensioning makes belt dynamic behavior steady, need not the manual work and adjusts repeatedly, and non-maintainability is high, strong adaptability.

Specifically, the taut system of belt feeder self-adaptation still includes: a combined direction-changing roller seat 13 which comprises at least two combined direction-changing rollers; the combined direction-changing roller seat 13 is adapted to change the direction of the two ends of the belt 100 conveyed by the belt tower 11, and is adapted to cooperate with the tensioning moving platform 21 to increase the number of winding sections of the belt 100 on at least one tensioning moving platform roller of the tensioning moving platform 21. Through the matching of the combined redirection roller seat 13 and the tensioning movable platform 21, the number of winding sections of the belt 100 on the tensioning movable platform 21 is realized, and further, when the belt 100 is stretched to the same length, the moving distance of the tensioning movable platform 21 is reduced, and the tensioning stroke is shortened.

As further shown in fig. 7, the combined redirecting roller base 13 includes: a first combined direction-changing drum 131 and a second combined direction-changing drum 132, wherein the first combined direction-changing drum 131 is suitable for changing the direction of the first end of the belt 100 conveyed by the belt tower 11, and the second combined direction-changing drum 132 is suitable for changing the direction of the second end of the belt 100 conveyed by the belt tower 11. The combined redirection drum base 13 further comprises: a third combined direction-changing roller 133, wherein the third combined direction-changing roller 133 is adapted to cooperate with the tensioning moving platform 21 to wind the belt 100 wound around the tensioning moving platform roller so as to increase the number of winding sections of the belt 100 on the tensioning moving platform 21.

Preferably, the combined direction-changing roller base 13 is disposed on the ground, and is adapted to share the stress of the belt tower, and due to the characteristic that the pulley block does work constantly, W is F · S, where W is work, F is force, and S is distance, when the distance S is shortened, the work W is not changed, and the stress F is inevitably increased, the combined direction-changing roller base 13 can share additional stress, so that the belt tower only bears the tensile force of the belt 100, and the operation risk of the belt tower is reduced.

Specifically, after the two ends of the belt 100 are redirected by the first combination direction-changing drum 131 and the second combination direction-changing drum 132, the first end of the belt 100 is wound around the first tensioning moving platform drum 211, and the second end of the belt 100 is wound around the second tensioning moving platform drum 212 and/or the third tensioning moving platform drum 213, and then they are joined after being wound around the two sides of the third combination direction-changing drum 133.

The belt 100 is wound between the combined direction-changing roller seat 13 and the tensioning moving platform 21 by arranging a plurality of combined direction-changing rollers on the combined direction-changing roller seat 13, and the function of sharing the additional stress of the belt tower is achieved.

Specifically, the belt conveyor adaptive tensioning system further includes a horizontal direction-changing pulley seat 22, as shown in fig. 8, which includes:

a first pulling end 222, said first pulling end 222 being adapted to secure one end of said steel cord 200;

the horizontal direction-changing pulley 221 is suitable for being in sliding connection with the tensioning moving platform pulley 214 through the steel wire rope 200, and horizontally changes the direction of the steel wire rope 200.

Preferably, the horizontal direction-changing pulley seat 22 is disposed on the ground, the first traction end 222 fixes one end of the steel wire rope 200, and after the steel wire rope 200 winds around the tensioning moving platform pulley 214, the horizontal direction-changing pulley 221 performs horizontal direction changing, so that one side of the horizontal direction-changing pulley seat 22 bears 2 times of the tensile force of the steel wire rope, and the other side bears 1 time of the tensile force of the steel wire rope, so that the horizontal direction-changing pulley seat 22 shares the stress of the heavy hammer tower 31, and the operation risk of the heavy hammer tower is reduced.

Further referring to fig. 3, it is a schematic diagram of the arrangement position of the belt conveyor adaptive tensioning system of the present invention; the horizontal redirection pulley block 22 redirects the wire rope 200 horizontally, so that the wire rope can make a smooth transition between the tensioning moving platform pulley 214 and the vertical redirection pulley 231.

Preferably, the radial bisector of the horizontal direction-changing pulley 221 and the tangent of the lowest point of the circumference of the tensioning moving platform pulley 214 are located at the same horizontal position, so that the steel wire rope 200 is ensured to run stably, the stress on the horizontal direction-changing pulley 221 is balanced, and the risk of slipping is avoided.

Specifically, taut system of belt feeder self-adaptation still includes fixed pulley assembly 33, fixed pulley assembly 33 sets up in weight tower 31 top, and it includes:

a second traction end 333, wherein the second traction end 333 fixes the other end of the steel wire rope 200;

the first fixed pulley 331 and the second fixed pulley 332, the first fixed pulley 331 and the second fixed pulley 332 are matched with the first movable pulley 321 and the second movable pulley 322 arranged on the weight box 32, so as to realize the traction of the weight box 32 to the steel wire rope 200. The two fixed pulleys and the two movable pulleys cooperate to form a pulley block, so that the traction force of the weight box 32 on the steel wire rope 200 is increased, and the characteristic that the pulley block does work constantly is combined, wherein W is F.S, W is work, F is force, and S is distance, and when the force F is increased, the work W is not changed, the distance S is shortened, the stroke of the weight box 32 is further reduced, and the height of the weight tower is reduced.

Specifically, the belt conveyor self-adaptive tensioning system further comprises a vertical redirection pulley seat 23, the vertical redirection pulley seat 23 is arranged between the horizontal redirection pulley seat 22 and the fixed pulley assembly 33, and the vertical redirection is performed on the steel wire rope 200 through a vertical redirection pulley 231 arranged on the vertical redirection pulley seat 23. The steel wire rope 200 is changed between the horizontal direction and the vertical direction through the vertically redirected pulley seat 23.

Specifically, referring to fig. 5 and fig. 6, the bottom of the tensioning moving platform 21 is provided with a traveling wheel, and the traveling wheel is adapted to drive the tensioning moving platform 21 to translate along the tensioning frame 20. The travelling wheels comprise at least a first taut mobile platform travelling wheel 215 and a second taut mobile platform travelling wheel 216, the first taut mobile platform travelling wheel 215 and the second taut mobile platform travelling wheel 216 being adapted for sliding movement along the guideway 201.

Specifically, the bottom of the tensioning moving platform 21 is further provided with a guide wheel assembly 217, and the guide wheel assembly 217 is suitable for sliding along the tensioning frame 20 for guiding and positioning. The leading wheel subassembly 217 with the travelling wheel set up respectively in guide rail 201's upper and lower both sides, thereby will taut moving platform 21 presss from both sides tightly to be installed on the guide rail 201, avoid taut moving platform 21 makes owing to the inequality reason of atress, travelling wheel perk or skew guarantee taut moving platform 21 operates steadily.

Preferably, the guide wheel assembly 217 is also adapted to guide the tensioning mobile platform 21 in the horizontal direction, so as to prevent the tensioning mobile platform 21 from slipping off the guide rail 201.

Preferably, the tensioning moving platform pulley 214 is disposed at a central axis position of the tensioning moving platform 21, so as to ensure that the tensioning moving platform 21 is stressed evenly.

Specifically, the self-adaptive tensioning system of the belt conveyor further includes a towing device 24, and as shown in fig. 9, 10, and 11, the towing device 24 is disposed on the tensioning frame 20, and is configured to lift the multiple sections of the belt 100 between the combined direction-changing roller base 13 and the tensioning moving platform 21 in a follow-up manner.

The towing attachment 24, comprising:

at least one fixed towing part fixedly mounted on the towing means 24 and adapted to lift the belt 100 kept in horizontal movement;

at least one movable towing belt portion movably mounted on the towing means and adapted to lift the belt 100 in a state of tilting motion.

The towing device can lift the belt which is arranged in a multilayer mode, wherein the movable towing belt part can be movably mounted on the towing device, the position of the movable towing belt part on the towing device is kept along with the adjustment of the position of the belt or along with the change of the relative position of the towing device and the belt, the lifting state of the movable towing belt part on the belt is kept, the normal operation of the belt is guaranteed, and the mutual noninterference of the multilayer belts is guaranteed.

Specifically, the fixed drag strap portion includes: a first idler 241 and a third idler 243; the first idler 241 and the third idler 243 are respectively and fixedly mounted at the upper part and the lower part of the towing device;

the movable towing part comprises: the second carrier roller 242 is positioned in the middle of the first carrier roller 241 and the third carrier roller 243 along the vertical direction; the second idler 242 is in selective fixed connection with at least one second idler fixing location 2422 on the towing attachment.

When the traction device lifts the belt, because the winding form of belt is different, the multilayer belt form that its formed often respectively differs, the utility model provides a traction device is provided with the bearing roller respectively at upper portion, middle part, lower part, and upper portion and lower part bearing roller adopt fixed form to set up, conveniently keeps the belt of relative unchangeable to belt and bearing roller position and lifts, especially can lift belt 100 that keeps horizontal motion to when traction device and belt all keep relative horizontal motion, equally can be suitable for.

In addition, a second carrier roller 242 in a movable form is arranged in the middle of the towing device and is selected to be fixedly connected through a second carrier roller fixing position 2422, so that the second carrier roller 242 can be adjusted in height in the vertical direction relative to the towing device, when the positions of a belt and the carrier rollers are changed relatively, the second carrier roller 242 is enabled to maintain the lifting state of the belt again by adjusting the height of the second carrier roller 242 on the towing device, and the applicability and the flexibility of the towing device are improved.

As a specific implementation form, the first idler 241 is fixed on the upper part of the towing device by a first idler positioning piece 2411; the second idler 242 is fixedly connected to a second idler fixing position 2422 on the towing device by a second idler positioning element 2421.

Specifically, the second idler fixing location 2422 is provided with at least one along the vertical direction of the towing device. Therefore, when the positions of the belt and the carrier rollers are changed relatively, the height of the second carrier roller 242 on the towing device is adjusted, the second carrier roller 242 is enabled to maintain the lifting state of the belt again, and the applicability and flexibility of the towing device are improved. As a variant implementation form of a single movable towing belt portion, the movable towing belt portion may include a plurality of carrier rollers, and the plurality of carrier rollers are respectively and alternatively and fixedly connected with at least one second carrier roller fixing position 2422 on the towing device, so that the towing device can have a plurality of movable towing belt portions, the number of layers of the towing device for lifting a belt is increased, and the applicability is strong.

Specifically, the towing device further includes: a first tow travel wheel 244, the first tow travel wheel 244 adapted to glide along an upper surface of the rail 201; and a second tow running wheel 245, the second tow running wheel 245 being adapted to slide along a rail guide 202 provided on the upper surface of the rail 201.

Specifically, a protrusion or a groove is arranged on the guide rail guide 202, a groove or a protrusion is arranged on the second towing running wheel 245 matched with the guide rail guide 202, the groove is matched with the protrusion in shape, and through matching of the second towing running wheel 245 and the guide rail guide 202, the second towing running wheel 245 can be guaranteed to move along the direction of the guide rail guide 202 at all times, so that the running direction of the towing device is guaranteed to move along the guide rail 201 at all times, and deviation is prevented.

Preferably, the first towing wheel 244 and the second towing wheel 245 are respectively disposed on two sides of the towing apparatus along the length direction, that is, the guide rail guide 202 is disposed on the upper surface of one guide rail 201, and the guide rail guide 202 is not disposed on the other guide rail 201, so that the traveling wheel on one side ensures the traveling direction, and the traveling wheel on the other side ensures the fault-tolerant rate, thereby preventing the towing apparatus from unsmooth operation due to the fact that the guide rail 201 is not straight when the guide rail guides 202 are disposed on both side guide rails.

In a specific implementation form, the guide rail 201 may be a channel, and the first towing wheel 244 is slidably engaged with an outer surface of a flange plate of the channel. The guide rail guide 202 on the upper surface of the guide rail 201 is an angle steel fixedly mounted on the outer surface of the flange plate of the channel steel, and the structural form of the second towing wheel 245 is matched with the angle steel, so that the second towing wheel 245 slides on the angle steel. The guide rail 201 may also be an i-beam, and the fitting form thereof is similar to that of a channel steel, and thus, the details are not repeated herein.

Specifically, the towing device further includes: a vertically-positioned guide wheel 246, the vertically-positioned guide wheel 246 being slidably fitted with the guide rail 201, a rotational axis of the vertically-positioned guide wheel 246 being parallel to a rotational axis of the first tow running wheel 244 and/or the second tow running wheel 245, and the vertically-positioned guide wheel 246 and the first tow running wheel 244 and/or the second tow running wheel 245 being respectively disposed on opposite sides of the guide rail 201 in a horizontal direction;

the horizontal positioning guide wheel 247 is in sliding fit with the guide rail 201, and the rotating axis of the horizontal positioning guide wheel 247 and the rotating axis of the vertical positioning guide wheel 246 are arranged at an angle.

By arranging the vertically positioned guide wheels 246 and the first tow running wheels 244 and/or the second tow running wheels 245 on the two opposite sides of the guide rail 201 in the horizontal direction, respectively, the towing device can be clamped on the guide rail 201, and the towing device is prevented from being accidentally slipped off the guide rail 201; meanwhile, the rotation axis of the horizontal positioning guide wheel 247 and the rotation axis of the vertical positioning guide wheel 246 are arranged at an angle, so that the horizontal positioning guide wheel 247 and the vertical positioning guide wheel 246 are clamped on the guide rail 201 towards two directions, the movement of the towing device relative to the horizontal direction of the guide rail 201 can be prevented, the movement of the towing device relative to the vertical direction of the guide rail 201 can be prevented, and the positioning accuracy of the towing device is ensured.

Preferably, the guide rail 201 is a channel steel, the vertical positioning guide wheel 246 is in sliding fit with the inner surface of a flange plate of the channel steel, and the horizontal positioning guide wheel 247 is in sliding fit with the inner surface of a web plate of the channel steel.

Specifically, the tensioning mobile platform 21 is connected to the towing device 24 through a towing guide chain 25 with a preset length, so that the towing device 24 moves along with the movement of the tensioning mobile platform 21 after the towing guide chain 25 is straightened. Two ends of the towing guide chain 25 are respectively fixed on the combined redirection roller seat 13 and the tensioning mobile platform 21. The towing guide chain 25 is made to have a fixed length between the combined redirecting roller base 13 and the tensioning moving platform 21, and the towing guide chain 25 is gradually tensioned or loosened as the tensioning moving platform 21 moves relative to the combined redirecting roller base 13.

Furthermore, a plurality of the towing devices 24 are arranged on the tensioning frame 20, and the towing guide chain 25 is fixedly connected with one of the towing devices 24 at intervals. Taking the two towing devices 24 as an example, after the tensioning moving platform 21 moves, the towing guide chain 25 is gradually tensioned and the first towing device 24 is driven to move, and when the first towing device 24 moves a certain distance and gradually tensions the towing guide chain 25 between the first towing device 24 and the second towing device 24, the second towing device 24 is driven to move, so that automatic following is realized and the towing distance is ensured.

In particular, the tow system further comprises a guide rope 26, the guide rope 26 being adapted to suspend the tow guide chain 25 by means of at least two suspension loops 253;

referring to fig. 10, a threading plate 248 is further disposed on the towing device 24, and the threading plate 248 is adapted to engage with the towing guide chain 25 and lift the guide rope 26.

Two ends of the guide rope 26 are respectively fixed on the combined direction-changing roller seat 13 and one side of the tensioning frame 20 far away from the combined direction-changing roller seat 13. The guide rope 26 is constantly in a tight straightening state and is arranged above the towing guide chain 25, the hanging ring 253 is arranged on the guide rope 26 and suspends the towing guide chain 25, the function of storing the guide chain is achieved, the towing guide chain can be prevented from being loosened, the risk that the towing guide chain 25 interferes with normal operation of equipment is reduced, and the accident rate is reduced. The relative distance between one side of the tensioning frame 20, which is far away from the combined direction-changing roller seat 13, and the combined direction-changing roller seat 13 is kept unchanged, so that the guide rope 26 is kept in a tensioned and straightened state at any time.

The threading plate 248 is fixedly arranged on one side of the towing device 24, and is provided with a guide groove and a hanging groove, the guide groove is suitable for lifting the guide rope 26, and the hanging groove is suitable for clamping the towing guide chain 25. Because the guide rope 26 is long, the threading plate 248 is arranged on the towing device 24, so that the guide rope 26 can be supported to a certain extent, and looseness is avoided.

Specifically, be provided with taut redirection roller seat 12 on the belt tower 11, taut redirection roller seat 12 includes: a first take-up direction-changing drum 121, said first take-up direction-changing drum 121 adapted to direction and direct a first end of said belt 100 to said first combination direction-changing drum 131;

a second take-up direction-changing drum 122, said second take-up direction-changing drum 122 adapted to direct and redirect a second end of said belt 100 to said second combination direction-changing drum 132.

Preferably, still be provided with at least one entrainment device 111 on the belt tower 11, entrainment device 111 is suitable for right belt 100 leads, because belt tower 11 is high, in the operation process, belt 100 is easy to be trembled, squinted, through set up a plurality ofly on the belt tower 11 belt 100 moves smoothly, reduces the skew rate.

Further referring to fig. 4, it is a force analysis diagram of the belt conveyor adaptive tensioning system of the present invention; the following combines the attached drawing, and is right the utility model discloses the concrete atress condition of taut system of belt feeder self-adaptation carries out the analysis. Setting the gravity of the weight box 32 to be 4F, wherein the weight box 32 pulls the steel wire rope through two movable pulleys, that is, the weight box 32 pulls down four sections of steel wire rope, the stress of each section of steel wire rope is F, and the force is transmitted through the first fixed pulley 331 and the vertical direction-changing pulley 231, and the stress of both ends of the horizontal direction-changing pulley 221 is also F; since the wire rope is fixed to the first traction end 222, the tension moving platform pulley 214 is pulled by the wire ropes at both ends, and the tension moving platform pulley 214 is stressed at 2F. The tensioning mobile platform 21 pulls four sections of belts, when the stress of the tensioning mobile platform 21 is 2F, the stress of each section of belt pulled by the tensioning mobile platform 21 is F/2, and the sum of the belt tensioning forces transmitted by the tensioning mobile platform 21 to the belt tower 11 is F. From the above analysis, it can be seen that pulling the belt with force F requires setting the weight box 32 with 4F gravity. Meanwhile, in order to pull the belt to move for the same distance, the length of the tensioning frame can be reduced by half, and the height of the heavy hammer tower can be reduced by half. Because the weight box 32 has a lower cost, although the weight of the weight box needs to be increased, the cost can be still greatly reduced on the basis of reducing the height of the weight tower and the length of the tensioning frame.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. An adaptive tensioning system for a belt conveyor, comprising:

the belt (100), the belt (100) is a continuous belt which is connected end to end;

-a mobile tensioning platform (21) provided at a first end thereof with at least one mobile tensioning platform roller suitable for winding up the belt (100); a tensioning mobile platform pulley (214) is arranged at the second end of the cable, and the tensioning mobile platform pulley (214) is suitable for being pulled by the steel wire rope (200);

a gravity generating device adapted to draw the wire rope (200) through a pulley set;

the gravity generating device is in sliding fit with the X section of the steel wire rope (200), the tensioning moving platform pulley (214) is in sliding fit with the Y section of the steel wire rope (200), and then the tensioning moving platform roller pulls the Z section of the belt (100) to move, wherein X is more than or equal to 2, Y is more than or equal to 1, and Z is more than or equal to 2.

2. The belt adaptive tensioning system of claim 1, further comprising: the combined direction-changing roller seat (13) comprises at least two combined direction-changing rollers; the combined redirection roller seat (13) is suitable for redirecting two ends of the belt (100) conveyed by the belt tower (11) respectively, is suitable for being matched with the tensioning moving platform (21), and increases the number of winding sections of the belt (100) on at least one tensioning moving platform roller of the tensioning moving platform (21).

3. The belt conveyor self-adaptive tensioning system of claim 2, wherein two ends of the belt (100) are respectively redirected by a first combined redirecting roller (131) and a second combined redirecting roller (132), a first end of the belt (100) is wound around a first tensioning moving platform roller (211), a second end of the belt (100) is wound around a second tensioning moving platform roller (212) and/or a third tensioning moving platform roller (213), and the two ends are converged and connected after being respectively wound around two sides of the third combined redirecting roller (133).

4. The belt adaptive tensioning system of claim 1, further comprising a horizontal redirection pulley block (22) comprising:

a first pulling end (222), said first pulling end (222) being adapted to secure one end of said steel cord (200);

the horizontal direction-changing pulley (221) is suitable for being in sliding connection with the tensioning moving platform pulley (214) through the steel wire rope (200) and conducting horizontal direction changing on the steel wire rope (200).

5. The belt adaptive tensioning system of claim 4, further comprising a fixed pulley assembly (33) comprising:

a second traction end (333), wherein the second traction end (333) fixes the other end of the steel wire rope (200);

first fixed pulley (331) and second fixed pulley (332), first fixed pulley (331) with second fixed pulley (332) pass through and set up first movable pulley (321) on the gravity generating device cooperates with second movable pulley (322), realize the gravity generating device is to wire rope (200) pull.

6. The belt conveyor self-adaptive tensioning system according to claim 5, further comprising a vertical direction-changing pulley seat (23), wherein the vertical direction-changing pulley seat (23) is arranged between the horizontal direction-changing pulley seat (22) and the fixed pulley assembly (33), and the vertical direction-changing pulley (231) arranged on the vertical direction-changing pulley seat (23) is used for vertically changing the direction of the steel wire rope (200).

7. A belt conveyor adaptive tensioning system according to any one of claims 2-3, characterized in that the bottom of the tensioning mobile platform (21) is provided with a travelling wheel which is suitable for driving the tensioning mobile platform (21) to translate along the tensioning frame (20).

8. The self-adaptive belt tensioning system according to claim 7, further comprising a dragging device (24), wherein the dragging device (24) is arranged on the tensioning frame (20) and lifts the multiple sections of the belt (100) between the combined direction-changing roller seat (13) and the tensioning movable platform (21) in a follow-up manner.

9. A belt conveyor adaptive tensioning system according to claim 7, characterized in that a guide wheel assembly (217) is further arranged at the bottom of the tensioning moving platform (21), and the guide wheel assembly (217) is suitable for sliding along the tensioning frame (20) for guiding and positioning.

10. The belt conveyor self-adaptive tensioning system according to claim 3, wherein a tensioning redirection roller base (12) is arranged on the belt tower (11), and the tensioning redirection roller base (12) comprises: a first take-up direction-changing drum (121), the first take-up direction-changing drum (121) adapted to change direction and direct a first end of the belt (100) to the first combination direction-changing drum (131);

a second take-up redirection drum (122), the second take-up redirection drum (122) adapted to redirect and direct the second end of the belt (100) to the second combination redirection drum (132).