Air bag type wear-resistant flexible jacking device

Abstract

The utility model discloses an air bag type abrasion-resistant flexible jacking device which comprises a bottom support and an air bag fixed on the bottom support in a sealing mode, and the air bag is in a trapezoid shape or a circular arc shape with an opening opened upwards after being inflated. The inflated air bag comprises an inclined left air bag supporting part, a horizontal middle air bag supporting part and an inclined right air bag supporting part which are communicated with one another, and the bottom edges of the left air bag supporting part, the middle air bag supporting part and the right air bag supporting part are connected with the bottom of the air bag in a sealed mode through sewing threads to form the air bag. The left air bag supporting part, the middle air bag supporting part and the right air bag supporting part are provided with a left wear-resisting supporting pad, a middle wear-resisting supporting pad and a right wear-resisting supporting pad respectively. The utility model has the advantages of rigidity and flexibility compatibility, light weight, small volume, high strength, wear resistance, impact resistance, long service life and convenience in carrying and carrying, and is time-saving, labor-saving and safe for maintenance and repair such as carrier roller replacement or small-space construction operation due to the fact that the operation space is enlarged by flexible jacking, lifting and extrusion supporting.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of belt conveyor and other mechanical equipment maintenance and engineering construction existing small space bracing, lifting, extrusion support increasing operation space, specifically relates to a basalt fiber composite air bag type wear-resistant flexible bracing device. BACKGROUND

[0002] Various mechanical equipment maintenance and replacement parts and engineering construction operation space small and unsafe problem. In various transportation industry, the belt conveyor is a very widespread and universal transportation mode, it simple structure, small footprint and the minimum impact on the surrounding environment and environmental protection, transportation efficiency is continuous and fast and efficient, especially low cost. Belt conveyor (belt conveyor) also called belt conveyor mainly relies on the roller to hold and drive the belt high-speed heavy load operation, use the rolling roller to reduce the belt tension and resistance and support load, thus long time high speed, heavy, strong pull, friction and high temperature or corrosion or water rust or dust consolidation or impact vibration and so on. Under the condition of easy damage, the running resistance is 70%, the most quickly worn and deformed parts. Do not change the hidden danger of belt operation is very much, two harm total one hurt vicious cycle interaction. For example, the damaged and deformed roller edge angle blade scratches the belt; the non-rotating roller increases the belt running friction resistance, increases energy consumption and power consumption, reduces the speed and quantity, or causes the belt deviation and other accidents. With the emergence of new technology and new transmission technology facilities such as permanent magnet variable frequency motor roller and large inclination and large slope, turnable device, as well as new materials such as rubber composite, high molecular polyurethane, carbon fiber, kevlar and basalt fiber, the belt transportation is wider and longer, the belt roller replacement and disassembly problem is more, with the implementation of the safety production law, it is urgent to have maintenance facilities to solve and meet the development of safety protection monitoring.

[0003] The belt roller is replaced frequently, the workload is large, and the production time is long. Due to the large tension and self-weight of the belt, the space under the belt roller is small, especially under the conditions of large inclination angle slope and overhead, the maintenance operation space is small, and large facilities and tools cannot be used. The old method is to use a crowbar to pry up the belt, one person enters under the belt to remove the damaged roller and reinstall the new roller, and there is a great safety hazard in the process of disassembly and replacement. For example, the bottom roller of the wide belt machine needs 2 people to lift the belt from the front and back of the roller, and 4-5 people to cooperate to complete the operation. 4 people are responsible for lifting the belt, and 1 person is responsible for disassembling and assembling the roller. Sometimes, tools such as crowbars and jacks are needed to help complete the operation. Correspondingly, it takes about 30 minutes to disassemble and replace a roller. In addition, the space between the upper and lower layers of the belt is small, and the worker drilling into the belt has no firm support to hold the belt, which poses a safety hazard. In addition, the worker standing on the belt is not stable, the distance of lifting the belt is limited, and the worker cannot stand stably, which makes it inconvenient and not easy to disassemble and assemble the roller. If the workers do not coordinate and are not consistent, the roller will be squeezed out or stand unstable and be squeezed back or pop out and hurt the workers. In the process of replacement using a crowbar or a jack, the workers are often injured, and various jacks or some simple replacement tools are not firm and stable, which poses a safety hazard and is complicated and slow. In addition, the counterweight belt, steel belt, and roller under the chute have greater belt tension, making it more difficult to disassemble and replace the roller in this way. The existing light mechanical screw rod support type belt roller device solves most of the above problems, but the weight of the wide belt device itself is also difficult for one person to move, especially in some narrow space, large inclination angle, and overhead conditions, it is not convenient for two people to walk. Secondly, the belt conveyor must be stopped to replace the roller, and the roller cannot be replaced at low speed without stopping. The workers have difficulty in turning the screw rod to support the belt, and the wide belt cannot be replaced by a hand-held electric drill instead of manual rotation. In addition, the mechanical screw rod support is concentrated on the fulcrum pin, especially for wide and thick belts, and the force is too concentrated, which will deform over time.

[0004] In addition to the above problems of disassembling and assembling the belt roller, other mechanical equipment and facilities maintenance and engineering construction also have problems such as limited operation space, large maintenance equipment or steel tools that cannot be used or are not easy to use in maintenance, the need for support, lifting, and extrusion to increase the operation space, the problem of hard contact and friction between the tools during maintenance without stopping the operation, the problem of unstable force fulcrum, and the problem of contact support surface size and force. The utility model discloses

[0005] In view of the problems existing in the prior art for replacing mechanical equipment such as a belt roller and engineering construction small space operation steel and other hard top support, lifting, extrusion, the utility model provides a kind of air bag type wear-resistant flexible top support, which is not only simple structure, light in weight, steel soft compatible, high wear resistance, more in line with stress uniformity, more in line with the object surface of contact of adhering top support, even can be operated or maintained in the low and slow running of certain mechanical equipment without shutdown, belt roller replacement and other mechanical equipment maintenance is more time-saving, labor-saving and money-saving, safer air bag type wear-resistant flexible top support.

[0006] The technical scheme adopted by the technical problem to be solved by the utility model is: an air bag type wear-resistant flexible top support, which comprises a bottom support and an air bag fixed on the bottom support, the air bag is in trapezoidal or circular arc shape after being inflated, the inflated air bag comprises an inclined left air bag support part, a horizontal middle air bag support part and an inclined right air bag support part which are communicated with each other, the extension edges 4 of the left air bag support part, the middle air bag support part and the right air bag support part are connected with the bottom of the air bag by sewing thread 25 to form the air bag, and the left air bag support part, the middle air bag support part and the right air bag support part are respectively provided with left wear-resistant support pads, middle wear-resistant support pads and right wear-resistant support pads.

[0007] The left wear-resistant support pads, the middle wear-resistant support pads and the right wear-resistant support pads are respectively fixed on the left air bag support part, the middle air bag support part and the right air bag support part, and can also be movably fixed on the left air bag support part, the middle air bag support part and the right air bag support part through a zipper or a mother-and-daughter sticker (or a button or a press buckle). The left air bag support part and the right air bag support part are provided with a telescopic part 1 (for facilitating the folding and unfolding of the left air bag support part and the right air bag support part).

[0008] The bottom support is made of basalt fiber composite special-shaped steel or Q345 steel plate material. The left wear-resistant support pads, the middle wear-resistant support pads and the right wear-resistant support pads are made of rubber, TPU polyurethane composite and other wear-resistant materials, and the air bag is made of basalt fiber polyurethane composite, nylon fiber and other composite high-strength, high-wear-resistant and scratch-resistant materials and can be folded. In particular, the basalt fiber cloth composite high-wear-resistant, high-aging-resistant, high-toughness, high-elasticity, high-absorption, high-sealing and high-tear-resistance polyurethane high-molecular material with high strength and light weight, high hardness, high tensile strength, high modulus, high tensile resistance, high pressure resistance, high impact resistance, high temperature resistance, corrosion resistance, insulation and greenness is used to make a basalt fiber polyurethane composite air bag.

[0009] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0010] The total height of the air bag (the distance between the bottom surface of the bottom support and the horizontal belt) is less than the distance between the horizontal belt and the main frame of the conveyor guide beam when the air bag is not inflated, so the air bag type roof support can smoothly pass through the belt conveyor from one side to the other side without manual lifting of the belt, and the uninflated air bag can be easily erected on the main frame of the guide beam of the belt conveyor. After inflation, the total height of the air bag can be increased by at least 300 mm, and various customized heights can be equivalent to lifting the horizontal belt by 300 mm (for example, as shown in the drawing, the lifted belt 12), so that the replaced idler can smoothly pass through the belt conveyor from one side to the other side. Figure 3 The total height of the air bag (the distance between the bottom surface of the bottom support and the horizontal belt) is less than the distance between the horizontal belt and the main frame of the conveyor guide beam when the air bag is not inflated, so the air bag type roof support can smoothly pass through the belt conveyor from one side to the other side without manual lifting of the belt, and the uninflated air bag can be easily erected on the main frame of the guide beam of the belt conveyor. After inflation, the total height of the air bag can be increased by at least 300 mm, and various customized heights can be equivalent to lifting the horizontal belt by 300 mm (for example, as shown in the drawing, the lifted belt 12), so that the replaced idler can smoothly pass through the belt conveyor from one side to the other side.

[0011] After the air bag is placed on the main frame of the guide beam, the bottom support is fixed on the main frame of the guide beam by locking devices on both sides, so that the air bag roof support will not be tilted and moved by the low and slow friction of the belt, and the function of the roof support will not be tilted and moved, which can make the belt idler after being removed, and the function of the belt idler lifting the belt is equivalent, so that the belt conveyor can still run slowly and normally during the replacement of the belt idler.

[0012] The air bag can lift the belt with a weight of at least 200 kg by 300 mm when the gas pressure is 0.1-0.5 MPa, and various specifications can be customized.

[0013] The utility model has the following characteristics compared with the prior art:

[0014] The utility model is compatible with rigidity and flexibility, light in weight, small in size, high in strength, wear-resistant, impact-resistant, long in service life, and very suitable for various material contact friction.

[0015] The utility model is convenient to manufacture, carry and transport, flexible to support, lift and extrude, and can increase the operation space to replace the idler and other maintenance and repair or small space operation, which is time-saving, labor-saving, safe and reliable.

[0016] The utility model can be installed under the belt without external force, which is fast and labor-saving, and the air source power is safe and convenient.

[0017] The utility model can realize the supporting and replacing work in the low and slow running without stopping the machine during the replacement of the belt idler. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the main section view structure schematic diagram of the utility model after inflation,

[0019] Figure 2 is Figure 1 A-A section view structure schematic diagram of the utility model,

[0020] Figure 3 is the main section view structure schematic diagram of the utility model when not inflating,

[0021] Figure 4 is Figure 1 B direction structure schematic diagram of the utility model,

[0022] Figure 5 is the schematic diagram of air bag horizontal deployment.

[0023] In the drawing, 1, telescopic part 2, fastening screw 3, pressing pad 4, extension edge 5, bottom support 6, backrest 7, locking screw 8, guide beam main frame 9, support frame 10, hoisting hole 11, left wear-resistant support pad 12, lifted belt 13, middle wear-resistant support pad 14, right wear-resistant support pad 15, zipper or sub-mother paste 16, air bag 17, air valve 18, elastic pad 19, air bag bottom 20, right air bag support part 21, middle air bag support part 22, left air bag support part 23, air bag rear part 24, air bag front part 25, sewing line 26, limiting plate. DETAILED DESCRIPTION

[0024] In the figure, a kind of air bag type wear-resistant flexible roof support, it includes bottom support 5, fixedly arranged on the upper surface of bottom support elastic pad 18 and sealingly fixed on bottom support air bag 16, the bottom support cross section is inverted U shape and is made of steel plate, is provided with support frame 9 at the both ends of bottom support, the both sides of support frame are fixedly connected with the both sides of bottom support, is provided with lifting hole 10 on the plane of bottom support (steel plate thickness is 3-4 millimeter), is fixedly provided with two pairs of limiting plates 26 at the both ends of bottom support, one pair of limiting plates has two and is oppositely spaced, the interval cavity (about 10 millimeter) between the two limiting plates is flush with the side surface of support frame. The air bag is rectangular parallelepiped after being inflated, the left and right end surfaces of the air bag after being inflated and air bag bottom 19 are plane, air bag front portion 24 and air bag rear portion 23 are trapezoidal faces that open upward and expand, the air bag after being inflated includes left air bag support portion 22, horizontal middle air bag support portion 21 and inclined right air bag support portion 20, which are connected to each other, the extension edge 4 of the left air bag support portion, the middle air bag support portion and the right air bag support portion is sealingly connected to the air bag bottom 19 by sewing thread 25 to form an air bag with a trapezoidal opening at the upper end, the air bag bottom is fixedly connected to the bottom support 5 by fastening screw 2, pressing pad 3 and elastic pad 18, the left air bag support portion, the middle air bag support portion and the right air bag support portion are respectively provided with left wear-resistant support pad 11, middle wear-resistant support pad 13 and right wear-resistant support pad 14. The trapezoidal face or circular arc face formed by the upper end of the left air bag support portion, the middle air bag support portion and the right air bag support portion opens upward and expands, which matches the cross section of the three-roller belt, that is, the trapezoidal shape of the upper end of the air bag matches the cross section shape of the belt. The left air bag support portion and the right air bag support portion are provided with telescopic portion 1 (for folding and unfolding the left air bag support portion and the right air bag support portion).

[0025] The left wear-resistant support pad, the middle wear-resistant support pad and the right wear-resistant support pad are fixedly arranged on the left air bag support portion, the middle air bag support portion and the right air bag support portion, respectively, and can be movably fixed on the left air bag support portion, the middle air bag support portion and the right air bag support portion by zipper or sub-mother paste 15 (or button or press buckle, etc.). The air valve 17 is fixedly arranged at the lower end of the right end surface of the air bag (which can be inflated by air pump or air cylinder).

[0026] The utility model discloses be placed on the belt conveyor guide beam main frame, and the both sides of bottom support are fixed on guide beam main frame 8 with locking device, make the air bag play the function of preventing side falling, can make the belt support roller after dismantling play the function of equivalent support roller, thus can realize when replacing the belt support roller, and the belt conveyor can still work slowly normally. The locking device includes the backplate 6 that the upper end is inserted between the limiting plate and is connected with the pin shaft, and the lower end is stretched to the support bottom outside and is in the cantilever shape, the lower end of the backplate is equipped with the threaded hole, is equipped with locking screw 7 in the threaded hole, makes the inner end of locking screw press tightly on the side of guide beam main frame 8 by relatively rotating two locking screws, to the support can be fixed on the guide beam, ensure that the air bag of support replaces the belt support roller that is dismantled to support the belt rotation, make the belt conveyor realize the belt conveyor non-stop work in the belt support roller replacement process. The locking device can also be other structural forms.

[0027] The air bag is used as a power source to support, lift and extrude to increase the operation space, and the structure is simpler, the volume is smaller than that of a mechanical screw or hydraulic actuator, the air bag steel is compatible, the contact is more integrated than metal hard contact, the contact surface is larger, the mutual abrasion is smaller, the stress of the whole support is more uniform, and deformation and damage are not easy to occur; the mechanical or hydraulic structure is complex, the volume is large, and the weight is heavy, the contact surface is small, the stress is concentrated on some nodes, deformation is easy to occur, and operation is more complex; the air bag is controlled by inflation and deflation to realize lifting and resetting, breaks through the rigid constraint of traditional mechanical structure, has no mechanical transmission part, forms soft and non-destructive contact safety; the volume of the support is returned to one tenth after resetting, is very suitable for carrying in and out in narrow space; the installation can adapt to angle inclination; the basalt fiber steel toughness is stronger than steel, and is not easy to be punctured; the air bag is modularly designed, adopts bolt connection quick-mounting air bag unit, and is customized and adapted for different belt width support surface size; intelligent inflation control is realized by pressure sensor to monitor inflation pressure and air pressure; the air bag flexible contact is better integrated with the belt curvature, unlike other metal integration, which can damage the belt and increase friction resistance; the inflation external connection mode is more flexible, various and convenient, can adopt convenient multifunctional emergency power supply, air pump, inflation pump, air compressor and the like, and is convenient and controllable to operate.

[0028] The basalt fiber polyurethane composite air bag solves the requirements of softness, wear resistance, high pressure resistance, scratch resistance, high temperature resistance and corrosion resistance in operation environment and operation conditions; the steel compatible solves the support friction strength, contact softness and adhesion; the basalt fiber polyurethane composite air bag solves the carrying problem well; the rigidity of basalt fiber and the flexibility of polyurethane solve the impact resistance well; the super high temperature resistance of basalt fiber solves the problem of friction heating and flame retardation in operation; the super high tensile strength of basalt fiber solves the problem of friction, scratch, impact and extrusion damage; the strong adhesion and good toughness of polyurethane can disperse stress, avoid brittle fracture of fiber, and complement advantages and disadvantages well; the high specific strength (strength / density ratio) is good for sealing, pressure resistance, impact resistance and energy absorption characteristics;

[0029] The belt supporting roller dismounting space is increased, the supporting roller is convenient to dismount, the replacement of the belt supporting roller is relatively simple and easy, the problem that the worker or the mechanical support is difficult to replace the belt supporting roller is solved, the replacement time is reduced, the problem that the worker replaces the belt supporting roller for a long time and affects production is solved, the efficiency is improved, meanwhile, the safety is guaranteed, on one hand, the worker can not enter the upper and lower layers of the belt to replace or one worker can enter the belt, the personnel are reduced, therefore, the probability of being hurt is greatly reduced, on the other hand, the jacking device is clamped on the main support of the belt conveyor, is relatively solid and firm, the air bag flexible jacking mechanism replaces the artificial and mechanical support hard jacking, the distance is high, the space is large, the adhesion is good, the worker's waist is not hurt and the supporting roller is not ejected to hurt people, the belt conveyor supporting roller dismounting tool does not need to be disassembled and combined, is simple and convenient, is placed simply and stably by using the support stress, the support of the main frame is well used, the belt frame member is not damaged, the supporting roller is replaced in a high belt space, other self-made simple and unreliable or too complex and heavy dismounting facilities tools are solved, the belt is caused to be circularly damaged due to the broken supporting roller, the belt is deviated and the material is scattered due to the broken and deformed supporting roller, the supporting roller parts are replaced in time to prolong the service life of the belt and reduce the running resistance, finally, the utility is simple, convenient, low in cost and economic and practical.

[0030] In the description of the utility model, it is necessary to explain that, unless there is definite provision and limitation, the terms "installation", "connection", "connection" and the like should be understood in a broad sense, for example, it can be fixed connection, can be detachable connection, or integral connection, can be mechanical connection, can be electrical connection, can be pneumatic facility connection, can be direct connection, can be indirect connection through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0031] The above one embodiment of the utility model has been described in detail, but the content described can only be the preferred embodiment of the utility model, and cannot be considered as being used to limit the implementation scope of the utility model. Any equivalent change and improvement made according to the application scope of the utility model should still belong to the patent coverage scope of the utility model.

Claims

1. A gas bag type flexible wear resistant roof prop characterized by: It includes bottom support (5) and sealed fixed on the bottom support air bag, the air bag is opened after inflation to the upwardly open trapezoidal or circular arc, the air bag after inflation includes mutually communicating inclined left air bag support part (22), horizontal middle air bag support part (21) and inclined right air bag support part (20), the extension edge (4) of left air bag support part, middle air bag support part and right air bag support part is sealedly connected with air bag bottom (19) by sewing line (25) and forms air bag, left air bag support part, middle air bag support part and right air bag support part are respectively provided with left wear-resistant support pad (11), middle wear-resistant support pad (13) and right wear-resistant support pad (14).

2. An air bag type flexible wear resistant roof prop according to claim 1, characterized in that: The left wear-resistant support pad, the middle wear-resistant support pad and the right wear-resistant support pad are respectively fixed on the left air bag support part, the middle air bag support part and the right air bag support part, and can also be movably fixed on the left air bag support part, the middle air bag support part and the right air bag support part through a zipper or a sub-mother paste (15).

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