Shaft furnace tooth roller conveying device

Abstract

The utility model provides a shaft furnace tooth roller conveying device which comprises a conveying trolley capable of being driven independently and a lifting mechanism arranged on the conveying trolley. The lifting mechanism comprises a sliding rail, a sliding block, a fixed pulley and an electric chain hoist, the sliding rail is arranged at the front end of the conveying trolley, and the sliding block is embedded in the sliding rail and can ascend and descend along the sliding rail; a fixed pulley is arranged at the top of the sliding rail, an electric chain hoist is arranged behind the sliding rail, and a transmission chain of the electric chain hoist is fixedly connected with the sliding block after bypassing the fixed pulley; a balancing weight is arranged at the rear end of the transport trolley; the front end of the sliding block is further provided with a tensioning assembly used for being connected with a shaft furnace tooth roller in a clamping mode. The conveying device is simple in structure and ingenious and reasonable in design, and rapid and safe conveying of the tooth roller is achieved; the vehicle body is small in size, is not limited by a site, is very flexible to move and change directions, can move in a narrow space, is high in moving speed, can quickly and directly transport the tooth roller to a mounting position, and reduces the maintenance time.

Description

Technical Field

[0001] The utility model relates to a transport device, in particular to a vertical furnace gear roller transport device. Background Art

[0002] The vertical furnace is a production equipment for pellets. The vertical furnace is equipped with toothed rollers to crush and squeeze the pellets for mixing, pelletizing and unloading. During the crushing process, the toothed rollers will gradually wear out. At the same time, since cooling water passes through the inside of the toothed rollers and the toothed sleeves, and the outside of the toothed rollers is in contact with 800℃ to 900℃ pellets, the uneven heat and cold easily generate stress, causing the toothed rollers to crack and leak. Therefore, the service life of the toothed rollers of the vertical furnace is usually only about half a year, and they need to be replaced regularly.

[0003] Since the gear roller can only be installed as a whole, it is necessary to gradually translate the gear roller to the installation position for installation. However, the gear roller is usually cast as a whole, and its weight and volume are large, which makes it very difficult to move the gear roller. In the currently used method, it is necessary to set a temporary lifting point in the vertical furnace body or the nearby concrete structure, and use a hand winch to lift the gear roller for movement. The hand winch is used to adjust the front, back, left and right positions during the movement. However, during the lifting process, the gear roller is prone to shaking and tilting, and cannot remain horizontal; when the gear roller is close to the installation position, it is also necessary to adjust the gear roller to a horizontal state with the assistance of other mechanisms such as hydraulic rods. The operation is complicated, inefficient, time-consuming and labor-intensive, and there is a risk of the gear roller falling during the movement, and the safety is poor. Utility Model Content

[0004] The utility model aims to overcome the disadvantages of the prior art and provides a vertical furnace gear roller transportation device which is easy to move and safe to use.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A vertical furnace gear roller transport device comprises an independently driven transport trolley and a lifting mechanism arranged on the transport trolley; the lifting mechanism comprises a slide rail, a slider, a fixed pulley and a chain electric hoist, the slide rail is arranged at the front end of the transport trolley, the slider is embedded in the slide rail and can be lifted and lowered along the slide rail; the fixed pulley is arranged on the top of the slide rail, the chain electric hoist is arranged behind the slide rail, the transmission chain of the chain electric hoist is fixedly connected to the slider after passing around the fixed pulley; a counterweight block is arranged at the rear end of the transport trolley; and a tensioning assembly for clamping the vertical furnace gear roller is also arranged at the front end of the slider.

[0007] A further improvement of the utility model is that the tensioning assembly includes a columnar plug rod extending from the center of the slider to the front end, a cone sleeve slidably arranged at the front end of the plug rod, and a tensioning hydraulic cylinder providing tensioning power. The tensioning hydraulic cylinder is transmission-connected to the cone sleeve, and an expansion sleeve is provided on the outside of the cone sleeve, which can expand outward or contract inward under the push of the cone sleeve.

[0008] A further improvement of the utility model is that: the expansion sleeve is an annular sleeve with an opening, and the cross-section of the expansion sleeve is an inverted trapezoid; the outside of the cone sleeve is provided with a first cone portion that matches the left cone surface of the expansion sleeve, and the middle part of the insertion rod is provided with a second cone portion that matches the right cone surface of the expansion sleeve, and the expansion sleeve and the insertion rod, as well as the expansion sleeve and the cone sleeve are all slidingly matched.

[0009] A further improvement of the utility model is that a through hole is opened in the center of the insertion rod along the axial direction to penetrate the insertion rod and the slider, a pull rod is arranged in the through hole, the pull rod is clearance-matched with the through hole and can slide in the through hole; one end of the pull rod is fixedly connected to the cone sleeve, and the other end is transmission-connected to the piston rod of the tensioning hydraulic cylinder.

[0010] A further improvement of the utility model is that a group of active universal wheels and a group of driven universal wheels are arranged at the bottom of the transport trolley, the active universal wheels are driven by hydraulic motors, and the driven universal wheels are universal wheels with damping.

[0011] A further improvement of the utility model is that a limit plate for limiting the travel of the sliding block is arranged on the top of the sliding rail.

[0012] The beneficial effects of the utility model are:

[0013] The utility model provides a vertical furnace gear roller transportation device, which has a simple structure, ingenious and reasonable design, realizes the rapid and safe transportation of the gear roller, adopts a tensioning assembly to realize the stable connection of the gear roller, and the gear roller is horizontal during transportation, and the subsequent installation process is more convenient. The vehicle body of the utility model is small in size and is not restricted by the site. It adopts a self-driven active universal wheel and a driven universal wheel with damping. The movement and change of direction are very flexible, and the movement in a narrow space can be realized. The moving speed is fast, and the gear roller can be quickly and directly transported to the installation position, which greatly reduces the maintenance time. At the same time, the utility model adopts remote control operation, and there is no need for operators to approach, which greatly enhances safety and reduces labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a side view structural schematic diagram of the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the left view structure;

[0016] Figure 3This is a schematic diagram of the structure of the tensioning assembly of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the expansion sleeve of the utility model;

[0018] Figure 5 It is a schematic diagram of the use state of the utility model.

[0019] In the figure: 1. transport trolley, 1-1. active universal wheel, 1-2. driven universal wheel, 2. distribution box, 2-1. signal receiver, 3-1. slide rail, 3-2. slider, 3-3. fixed pulley, 3-4. chain electric hoist, 3-5 transmission chain, 4. rear vertical plate, 5. side vertical plate, 6-1. plug rod, 6-2. taper sleeve, 6-3. expansion sleeve, 6-4 pull rod, 6-5. tensioning hydraulic cylinder, 6-6. locking nut, 7. counterweight, 8. hydraulic motor cylinder, 9. gear roller. DETAILED DESCRIPTION

[0020] The utility model will be further described below in conjunction with the accompanying drawings.

[0021] A vertical furnace tooth roller conveyor device, such as Figure 1~Figure 5 As shown, it includes a transport trolley 1 and a lifting mechanism arranged on the transport trolley 1. The transport trolley 1 is used to realize the transfer of the gear roller, and the lifting mechanism is used to realize the fixing and vertical lifting of the gear roller 9.

[0022] Universal wheels are arranged at the four corners of the bottom of the transport trolley 1, specifically including a group of active universal wheels 1-1 and a group of driven universal wheels 1-2. The active universal wheels 1-1 are driven by a hydraulic motor, and can be driven alone to achieve turning, or driven simultaneously to achieve forward and backward movement; through the cooperation of the active universal wheels 1-1 and the driven universal wheels 1-2, starting and stopping become more flexible and smooth, and starting, stopping and turning can be done at any time. A distribution box 2 is also arranged on the transport trolley 1, and a power supply mechanism for supplying power to each mechanism and a control mechanism for realizing the start and stop control of each component are arranged in the distribution box 2; a signal receiver 2-1 for receiving remote control signals is also installed on the distribution box 2, and the signal transmission end of the signal receiver 2-1 is connected to the control mechanism to realize remote control of the device.

[0023] Preferably, the driven universal wheel 1-2 is a universal wheel with damping, and no idling or sliding occurs.

[0024] The lifting mechanism includes a slide rail 3-1, a slider 3-2, a fixed pulley 3-3, an electric chain hoist 3-4 and a tensioning assembly. The slide rail 3-1 is arranged at the front end of the transport trolley 1, and the slider 3-2 is embedded in the slide rail 3-1 and can be lifted up and down along the slide rail 3-1. A fixed pulley 3-3 is arranged on the top of the slide rail 3-1, and an electric chain hoist 3-4 is arranged behind the slide rail 3-1. After the transmission chain 3-5 of the electric chain hoist 3-4 passes around the fixed pulley 3-3, it is fixedly connected to the slider 3-2. The transmission chain 3-5 is extended and retracted through the hoisting mechanism arranged inside the electric chain hoist 3-4, thereby driving the slider 3-2 to lift and lower vertically along the slide rail 3-1.

[0025] A limit plate is arranged on the top of the slide rail 3-1 to limit the travel of the slider 3-2 and prevent the slider 3-2 from slipping out upwards.

[0026] In order to make the lifting process smoother and more labor-saving, the transmission chain 3-5 between the electric chain hoist 3-4 and the fixed pulley 3-3 is tightened in an inclined state, and the angle between the section of the transmission chain 3-5 and the vertical direction is 15°~30°.

[0027] Specifically, a rear vertical plate 4 is arranged at the rear side of the slide rail 3-1, and the rear vertical plate 4 is vertically fixed on the transport trolley 1, and its height is less than the height of the slide rail 3-1, and the chain electric hoist 3-4 is fixed on the rear vertical plate 4. The rear vertical plate 4 and the slide rail 3-1 are connected and reinforced by two side vertical plates 5 to increase the stability of the support.

[0028] In this embodiment, the slide rail 3-1 is composed of two vertically arranged channel steels, and the open ends of the two channel steels are arranged opposite to each other to form a guide structure for the slider 3-2 to slide up and down, ensuring that the lifting direction is vertical.

[0029] The front end of the slider 3-2 is also provided with a tensioning assembly for clamping the gear roller of the vertical furnace. Figure 3 As shown, it includes a columnar plug rod 6-1 extending from the center of the slider 3-2 to the front end, a cone sleeve 6-2 and an expansion sleeve 6-3 arranged outside the plug rod 6-1, and a tensioning hydraulic cylinder 6-5 providing tensioning power.

[0030] The insert rod 6-1 and the slider 3-2 are integrally formed, and a through hole is provided in the center of the insert rod 6-1 along the axial direction to penetrate the insert rod 6-1 and the slider 3-2. The front end of the insert rod 6-1 is provided with a small diameter portion that matches with the cone sleeve 6-2, and the cone sleeve 6-2 is slidably matched with the small diameter portion; a pull rod 6-4 is provided in the through hole, and the pull rod 6-4 is in clearance with the through hole and can move left and right in the through hole. One end of the pull rod 6-4 is fixedly connected to the cone sleeve 6-2 through a locking nut 6-6, and the other end is connected to the piston rod of the tensioning hydraulic cylinder 6-5, so that the power of the tensioning hydraulic cylinder 6-5 is transmitted to the cone sleeve 6-2, so that it moves left and right relative to the insert rod 6-1. The rear end of the insertion rod 6-1 is provided with a large diameter portion, and the large diameter portion and the small diameter portion are connected by an inclined portion, and a limit step for the moving position of the cone sleeve 6-2 is provided at the rear end of the small diameter portion; the outer diameter of the front end of the cone sleeve 6-2, the outer diameter of the large diameter portion of the insertion rod 6-1, and the outer diameter of the expansion sleeve 6-3 when it is contracted are the same, so that when the expansion sleeve 6-3 is in the contracted state, the combination of the insertion rod 6-1, the cone sleeve 6-2, and the expansion sleeve 6-3 is cylindrical.

[0031] like Figure 4 As shown, the expansion sleeve 6-3 is an annular sleeve with an opening, and the cross section of the expansion sleeve 6-3 is an inverted trapezoid; correspondingly, the rear part of the cone sleeve 6-2 is provided with a conical section that matches the left cone surface of the expansion sleeve 6-3, and the right cone surface of the expansion sleeve 6-3 matches the inclined portion of the insertion rod 6-1. Through the cooperation between the conical surfaces, the movable connection between the expansion sleeve 6-3 and the insertion rod 6-1, and the expansion sleeve 6-3 and the cone sleeve 6-2 is realized. When the piston rod of the tensioning hydraulic cylinder 6-5 retracts, the piston rod drives the pull rod 6-4 to move backward, the cone sleeve 6-2 retracts inward, and the cone section of the cone sleeve gradually squeezes the left cone surface of the expansion sleeve 6-3. After the expansion sleeve 6-3 is subjected to force, it is gradually lifted up, deformed along the opening, and expanded outward until the expansion sleeve 6-3 contacts and presses the inner wall of the axis hole of the gear roller. When the piston rod of the tensioning hydraulic cylinder 6-5 extends, it pushes the pull rod 6-4 and drives the cone sleeve 6-2 to slide outward, and the expansion sleeve 6-3 gradually shrinks inward under the centripetal force, releasing the pressure on the axis hole of the gear roller. When the expansion sleeve 6-3 is fully shrunk, the outer diameter of the expansion sleeve 6-3, the outer diameter of the front end of the cone sleeve 6-2, and the outer diameter of the large diameter part of the insertion rod 6-1 are the same, so that the tensioning assembly is cylindrical as a whole.

[0032] In order to make the lifting and moving process of the vertical roller more stable, a counterweight block 7 is also provided at the rear end of the transport trolley 1 to balance the center of gravity of the equipment when the gear roller is lifted; the weight of the counterweight block 7 can be adjusted according to the actual weight of the vertical roller. At the same time, the hydraulic motor cylinder 8 and the distribution box used to drive the active universal wheel 1-1 are fixedly installed on the left and right sides of the transport trolley 1 respectively to balance the center of gravity of the left and right sides during the movement of the equipment.

[0033] The working process of the utility model is:

[0034] Move the transport trolley to the vicinity of the gear roller, lift the slider to the appropriate position, align the tensioning assembly with the gear roller axis hole, and start the tensioning hydraulic cylinder to press the tensioning sleeve against the gear roller axis hole to achieve a stable connection between the tensioning assembly and the gear roller. Then turn on the electric chain hoist and wind up the transmission chain. Under the pulling action of the transmission chain, the slider drives the gear roller to move up to the specified height and then stops. Start the active universal wheel, drive the transport trolley to the vicinity of the gear roller installation position, and transport the gear roller to the installation position. Start the tensioning hydraulic cylinder again to release the tensioning assembly and the gear roller axis hole, separate the tensioning sleeve from the gear roller, and complete the transportation.

[0035] The start and stop operations of the equipment of the utility model are all performed through the remote control, and there is no need to get close, which is very convenient.

[0036] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A vertical furnace tooth roller transport device, characterized in that: The invention comprises an independently drivable transport trolley (1) and a lifting mechanism arranged on the transport trolley (1); the lifting mechanism comprises a slide rail (3-1), a slider (3-2), a fixed pulley (3-3) and an electric chain hoist (3-4); the slide rail (3-1) is arranged at the front end of the transport trolley (1); the slider (3-2) is embedded in the slide rail (3-1) and can be lifted and lowered along the slide rail (3-1); the fixed pulley (3-3) is arranged at the top of the slide rail (3-1); the electric chain hoist (3-4) is arranged at the rear of the slide rail (3-1); the transmission chain (3-5) of the electric chain hoist (3-4) passes around the fixed pulley (3-3) and is fixedly connected to the slider (3-2); a counterweight (7) is arranged at the rear end of the transport trolley (1); and a tensioning assembly for clamping a toothed roller (9) of a vertical furnace is also arranged at the front end of the slider (3-2).

2. The vertical furnace tooth roller conveyor according to claim 1, characterized in that: The tensioning assembly comprises a columnar plug rod (6-1) extending from the center of a slider (3-2) to the front end, a cone sleeve (6-2) slidably arranged at the front end of the plug rod (6-1), and a tensioning hydraulic cylinder (6-5) providing tensioning power. The tensioning hydraulic cylinder (6-5) is transmission-connected to the cone sleeve (6-2), and an expansion sleeve (6-3) is arranged outside the cone sleeve (6-2) and can expand outwards or contract inwards under the push of the cone sleeve (6-2).

3. The vertical furnace tooth roller conveyor according to claim 2, characterized in that: The expansion sleeve (6-3) is an annular sleeve with an opening, and the cross section of the expansion sleeve (6-3) is an inverted trapezoid; the outside of the cone sleeve (6-2) is provided with a first conical portion that matches the left cone surface of the expansion sleeve (6-3), and the middle part of the insertion rod (6-1) is provided with a second conical portion that matches the right cone surface of the expansion sleeve (6-3); the expansion sleeve (6-3) and the insertion rod (6-1), and the expansion sleeve (6-3) and the cone sleeve (6-2) are all slidably matched.

4. The vertical furnace gear roller conveyor according to claim 3, characterized in that: A through hole is provided at the center of the insertion rod (6-1) along the axial direction and passes through the insertion rod (6-1) and the slider (3-2). A pull rod (6-4) is arranged in the through hole. The pull rod (6-4) is in clearance fit with the through hole and can slide in the through hole. One end of the pull rod (6-4) is fixedly connected to the cone sleeve (6-2), and the other end is drivingly connected to the piston rod of the tensioning hydraulic cylinder (6-5).

5. The vertical furnace tooth roller conveyor according to claim 1, characterized in that: A group of active universal wheels (1-1) and a group of driven universal wheels (1-2) are arranged at the bottom of the transport trolley (1); the active universal wheels (1-1) are driven by hydraulic motors, and the driven universal wheels (1-2) are universal wheels with damping.

6. The vertical furnace tooth roller conveyor according to claim 1, characterized in that: A limiting plate for limiting the travel of the sliding block (3-2) is arranged on the top of the sliding rail (3-1).

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