Ladle transport vehicle with automatic capping structure

Abstract

The invention belongs to the technical field of ladle transportation, and relates to a ladle transport vehicle with an automatic capping structure, which comprises a transport vehicle plate mounted at the tail of a vehicle body, and a front tumbler unit and a rear tumbler unit which are respectively arranged on two sides of the transport vehicle plate, the front rotating arm unit and the rear rotating arm unit are each provided with a half ladle cover, and the two half ladle covers are suitable for covering the upper side of a hot metal ladle on the transport vehicle plate in a matched mode. The front rotating arm unit comprises a front large arm rotating on the transport vehicle plate, a first telescopic set connected with one of the two half covering covers through a first connecting frame is arranged on the front large arm, a first hydraulic cylinder is rotationally arranged on the transport vehicle plate, and a piston rod of the first hydraulic cylinder is rotationally connected with the front large arm. The first telescopic set is controlled to stretch out and draw back so as to drive the front half ladle cover to move up and down through the first connecting frame to adjust the height, the second telescopic set is controlled to stretch out and draw back so as to drive the rear half ladle cover to move up and down through the second connecting frame to adjust the height, and therefore the front half ladle cover is matched to adapt to capping operation of hot metal ladles with different heights, and adaptability is high.

Description

Technical Field

[0001] The invention belongs to the technical field of molten iron ladle transportation, and in particular relates to a molten iron ladle transportation vehicle with an automatic covering structure. Background Art

[0002] The ladles are used to hold high-temperature molten iron. As the ferroalloy industry is booming, it is faced with the problem of how to deal with a large amount of industrial solid waste. These wastes mainly include ferroalloy hot molten slag, which is generated during the production process and needs to be processed and utilized through specific technologies and equipment.

[0003] During the slag treatment process, the main mode of transportation is by car (trailer). Since the ladle opening of the molten iron ladle is open, the high-temperature slag will cool rapidly when it contacts the external low-temperature environment (such as water or air) during transportation. The heat exchange between the slag and the external medium will cause a sudden drop in temperature, affecting its fluidity, causing crusting and bagging, and affecting production efficiency.

[0004] For example, the patent with patent announcement number CN108436070B discloses a ladle cover device installed on a molten iron tank car. Another example is the patent with patent announcement number CN103934444B, which discloses an online molten iron tank insulation device for molten iron transportation and a cover cover method thereof. Although both of the above two cover structures can be covered, the covering position is limited, and the corresponding covering height cannot be adjusted according to the height of the molten iron ladle. Therefore, they can only be applied to ladles of a single specification.

[0005] In view of the shortcomings of the above-mentioned prior art, a ladle transport vehicle with an automatic covering structure is designed to overcome the shortcomings of the prior art and can adjust the corresponding covering height according to the height of the ladle and has strong adaptability. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and to provide a ladle transport vehicle with an automatic covering structure which can adjust the corresponding covering height according to the height of the ladle and has strong adaptability.

[0007] In order to solve the above technical problems, the present invention provides such a molten iron ladle transport vehicle with an automatic covering structure, comprising a transport vehicle plate installed at the rear of the vehicle body, a front rotating arm unit and a rear rotating arm unit respectively arranged on the front and rear sides of the transport vehicle plate, and the front rotating arm unit and the rear rotating arm unit are both provided with a semicircular half cover. The two half covers are suitable for covering the upper side of the molten iron ladle on the transport vehicle plate. The outer layer of the half cover is made of high-temperature resistant alloy (such as nickel-based alloy) or ceramic composite material (such as silicon carbide), and the inner layer of the half cover is made of high-efficiency heat-insulating material (such as aerogel felt or aluminum silicate fiberboard); the front rotating arm unit includes a rotating arm unit on the front of the transport vehicle plate. A front boom on the side, the front boom is provided with a telescopic group 1 connected to one of the front half-covers of the two half-covers through a connecting frame 1, two left and right opposite hydraulic cylinders 1 located in front of the front boom are rotatably arranged on the transport vehicle plate, the piston rod of the hydraulic cylinder 1 is rotatably connected to the upper front side of the front boom; the rear swivel arm unit includes a rear support leg rotatably arranged on the upper side of the rear part of the transport vehicle plate, the rear support leg is provided with a telescopic group 2 connected to the other rear half-cover of the two half-covers through a connecting frame 2, two left and right opposite hydraulic cylinders 2 located behind the rear support leg are rotatably arranged on the transport vehicle, the piston rod of the hydraulic cylinder 2 is rotatably connected to the lower part of the rear support leg through a connecting frame.

[0008] Preferably, the front swing arm unit is located on one side when the transport vehicle plate is installed at the rear of the vehicle body. The rear swing arm unit has two rear legs in total. Two front and rear opposing connecting frames are rotatably arranged between the lower parts of the two rear legs. The piston rod of hydraulic cylinder two is rotatably connected to the connecting frame. Telescopic groups two are provided on the two rear legs, and each telescopic group two has two hinge points between the lower side of the connecting frame two.

[0009] Preferably, the telescopic group includes a sliding rod slidably arranged on the upper part of the front arm, the upper side of the sliding rod is connected to the lower side of the connecting frame, and an electric telescopic rod is installed on the lower front side of the front arm, and the telescopic end of the electric telescopic rod passes through the front arm and is connected to the sliding rod.

[0010] Preferably, telescopic group two includes two sliding rods two slidingly arranged on the upper part of the rear legs and opposite to each other, the upper end of the sliding rod two is hingedly connected to the lower side of the connecting frame two, the upper side of the connecting frame is rotated with an electric telescopic rod two parallel to the rear legs, and the telescopic end of the electric telescopic rod two is rotationally connected to the lower side of the connecting frame two.

[0011] Preferably, it also includes a front limiter and a rear limiter respectively connected to the front and rear sides of the transport vehicle plate. The front limiter is located on the side of the transport vehicle plate close to the front swing arm unit, and the front limiter is suitable for limiting and supporting the front upper arm. The rear limiter is located on the side of the transport vehicle plate close to the rear swing arm unit, and the rear limiter is suitable for limiting and supporting the rear support leg at the rear.

[0012] Preferably, it also includes an elastic telescopic rod and a stabilizing clamp, and the upper side of the transport vehicle plate has two front and rear opposite enclosing parts, the shape of the enclosing parts is semicircular, and a placement platform for placing the molten iron ladle on the transport vehicle plate is formed between the two enclosing parts, and the two enclosing parts are both located between the front rotating arm unit and the rear rotating arm unit; two elastic telescopic rods opposite to each other on the two enclosing parts are provided, and a stabilizing clamp located on the transport vehicle plate placement platform is connected between the movable ends of the two elastic telescopic rods on the same enclosing part.

[0013] Preferably, the elastic telescopic rod includes a guide sleeve arranged on the enclosure part, a sliding rod connected to the stabilizing clamp is slidably disposed on the guide sleeve, a spring located inside the guide sleeve is connected between the sliding rod and the guide sleeve, and the spring is used to reset the sliding sliding rod.

[0014] Preferably, it also includes a transmission rod and a connecting rod 1, the guide sleeve slides through the enclosure part, one side of the front arm is connected to the transmission rod, and the connecting rod 1 rotates between the transmission rod and the guide sleeve on the enclosure part close to the front swing arm unit; the connecting rod 2 rotates between the connecting frame and the guide sleeve on the enclosure part close to the rear swing arm unit.

[0015] Preferably, it also includes two groups of left and right opposite slides arranged on the transport vehicle plate placement platform, the upper sliding part of the slide is provided with a limit block for resisting the side suspension shaft of the molten iron ladle, a screw threadedly connected to the limit block is rotated on the slide, and a rotating handle 1 is rotated on the slide, and bevel gears are connected to the rotating handle 1 and the screw, and the two bevel gears are meshed.

[0016] Preferably, it also includes a bidirectional screw and a second turning handle. Each group of slides has two slides facing each other front and back. The limit blocks on the two opposite slides cooperate with each other to resist the iron ladle suspension axis on the same side. The slide is slidably arranged on the transport vehicle plate. The left and right sides of the transport vehicle plate are both rotated with a bidirectional screw. The two opposite slides in the same group of slides are respectively threadedly connected to the two sides of the same bidirectional screw. A notch is opened on the enclosure part for the turning handle to pass through.

[0017] The present invention overcomes the shortcomings of the prior art and can achieve the following beneficial effects: 1. Control the telescopic group 1 to extend and retract so as to drive the front half cover to move up and down to adjust the height through the connecting frame 1; control the telescopic group 2 to extend and retract so as to drive the rear half cover to move up and down to adjust the height through the connecting frame 2, so as to cooperate with the front half cover to adapt to the covering operation of ladles of different heights, and the adaptability is strong.

[0018] 2. When the front half cover is folded up, the front upper arm will swing forward and gradually approach the front limiter. When the rear half cover is folded up, the rear leg will swing backward and gradually approach the rear limiter. In this way, the front limiter and the rear limiter are used for limiting support, thereby improving stability during deployment.

[0019] 3. When the front half cover and the rear half cover are close to each other to cover the molten iron ladle, the front and rear two stable clamps will actively and synchronously approach each other and adaptively clamp the molten iron ladle to improve the stability during transportation. When the front half cover and the rear half cover are away from the molten iron ladle, the front and rear two stable clamps will actively and synchronously move away from each other to release the molten iron ladle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a first assembly schematic diagram of the present invention.

[0021] Figure 2 It is a left view of the present invention.

[0022] Figure 3 This is a second assembly schematic diagram of the present invention.

[0023] Figure 4 It is a schematic diagram of the front rotating arm assembly and the front half cover of the present invention.

[0024] Figure 5 It is a schematic diagram of a sliding rod 1, an electric telescopic rod 1 and a connecting frame 1 according to the present invention.

[0025] Figure 6 It is a schematic diagram of the front rotating arm assembly and the front half cover of the present invention in the retracted state.

[0026] Figure 7 It is a schematic diagram of the rear swing arm assembly and the rear half cover of the present invention.

[0027] Figure 8 It is a schematic diagram of the sliding rod 2, the connecting frame and the electric telescopic rod 2 of the present invention.

[0028] Fig. 9 It is a cross-sectional view of the guide sleeve of the present invention.

[0029] Fig.10 It is a schematic diagram of the slide, limit block and bidirectional screw rod of the present invention.

[0030] Fig.11 It is a cross-sectional view of the slide and the limit block of the present invention.

[0031] The markings in the accompanying drawings provided by the present invention are: 1-transport vehicle plate, 10-enclosing part, 11-front stopper, 12-rear stopper, 2-front swing arm unit, 21-front big arm, 22-telescopic group one, 221-sliding rod one, 222-electric telescopic rod one, 23-connecting frame one, 24-hydraulic cylinder one, 3-half cover, 4-rear swing arm unit, 41-rear support leg, 42-telescopic group two, 421-sliding rod two, 422 -Connecting frame, 423-electric telescopic rod 2, 43-connecting frame 2, 44-hydraulic cylinder 2, 51-elastic telescopic rod, 511-guide sleeve, 512-sliding rod, 513-spring, 52-stable clamp, 53-transmission rod, 54-connecting rod 1, 55-connecting rod 2, 60-notch, 61-slide, 62-limiting block, 63-screw, 64-handle 1, 65-bevel gear, 66-bidirectional screw, 67-handle 2. DETAILED DESCRIPTION

[0032] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0033] In addition, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. It should be noted that the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] A molten iron ladle transport vehicle with an automatic covering structure, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7As shown, it includes a transport vehicle plate 1 installed at the rear of the vehicle body, a front rotating arm unit 2 and a rear rotating arm unit 4 respectively arranged on the front and rear sides of the transport vehicle plate 1, and the front rotating arm unit 2 and the rear rotating arm unit 4 are provided with a semicircular half cover 3, and the front and rear half covers 3 are respectively suitable for swinging towards each other under the drive of the front rotating arm unit 2 and the rear rotating arm unit 4 and covering the upper side of the molten iron ladle on the transport vehicle plate 1 in a horizontal manner, so as to maintain the temperature of the molten iron and reduce oxidation. The outer layer of the half cover 3 is made of high-temperature resistant alloy (such as nickel-based alloy) or ceramic composite material (such as silicon carbide) to withstand high temperature and mechanical impact, and the inner layer of the half cover 3 is made of high-efficiency thermal insulation material (such as aerogel felt or aluminum silicate fiberboard) to minimize heat transfer; the front rotating arm unit 2 includes a front large arm 21 rotating on the upper side of the front part of the transport vehicle plate 1, and the front half covers 3 are respectively suitable for swinging towards each other under the drive of the front rotating arm unit 2 and the rear rotating arm unit 4 and covering the upper side of the molten iron ladle on the transport vehicle plate 1 in a horizontal manner, so as to maintain the temperature of the molten iron and reduce oxidation. The boom 21 is provided with a telescopic group 22 connected to one of the front half covers 3 of the two half covers 3 through a connecting frame 23. When the front boom 21 is in a vertical state, the telescopic group 22 is controlled to be telescopic to drive the front half cover 3 to move up and down to adjust the height through the connecting frame 23, so as to adapt to the covering operation of ladles of different heights. Two left and right opposite hydraulic cylinders 24 are rotatably arranged in front of the front boom 21 on the transport vehicle plate 1. The piston rod of the hydraulic cylinder 24 is rotatably connected to the upper front side of the front boom 21. The extension of the hydraulic cylinder 24 will drive the front boom 21 to swing backward. The front boom 21 will drive the front half cover 3 to swing backward and close to the rear half cover 3 through the connecting frame 23, so as to perform automatic covering operation, until the front boom 21 is in a vertical state, and the half cover 3 is in a state of horizontally covering the ladles (such as Figure 1 ), the control hydraulic cylinder 1 24 contracts to drive the front arm 21 to swing forward, so that the front arm 21 drives the front half cover 3 to swing forward away from the rear half cover 3 through the connecting frame 1 23; the rear arm unit 4 includes a rear support leg 41 rotatably arranged on the upper side of the rear part of the transport vehicle plate 1, and the rear support leg 41 is provided with a telescopic group 2 42 connected to the other rear half cover 3 of the two half covers 3 through the connecting frame 2 43. When the rear support leg 41 is in a vertical state, the telescopic group 2 42 is controlled to extend and retract to drive the rear half cover 3 to move up and down to adjust the height through the connecting frame 2 43, so as to cooperate with the front half cover 3 to adapt to different heights In order to cover the ladle, two hydraulic cylinders 44 are rotated on the transport vehicle and are located opposite to each other at the rear of the rear legs 41. The piston rods of the hydraulic cylinders 44 are rotatably connected to the lower parts of the rear legs 41 through the connecting frames 422. The extension of the hydraulic cylinders 44 will drive the rear legs 41 to swing forward, and the rear legs 41 will drive the rear half cover 3 to swing forward close to the front half cover 3 through the connecting frames 43, so as to perform the automatic covering operation. The contraction of the hydraulic cylinders 44 will drive the rear legs 41 to swing backward, so that the rear legs 41 drive the rear half cover 3 to swing backward away from the front half cover 3 through the connecting frames 43.

[0035] like Figure 3 , Figure 7 and Figure 8 As shown, the front swing arm unit 2 is located on one side when the transport vehicle plate 1 is installed at the rear of the vehicle body, and the rear swing arm unit 4 has two rear legs 41 in total, and there are two front and rear connecting frames 422 that rotate between the lower parts of the two rear legs 41, and the piston rod of the hydraulic cylinder 2 44 is rotatably connected with the connecting frame 422, and the hydraulic cylinder 2 44 is controlled to drive the two rear legs 41 to rotate and swing synchronously through the connecting frame 422, and the two rear legs 41 are each provided with a telescopic group 2 42, and each telescopic group 2 42 has two hinge points between the lower side of the connecting frame 2 43, so that the connecting frame 2 43 drives the rear half cover 3 to always be in a horizontal state through the quadrilateral hinge point arrangement, and when the hydraulic cylinder 2 44 contracts to drive the rear half cover 3 to swing back and be retracted, the horizontally placed rear half cover 3 can avoid sufficient lifting position for the molten iron ladle on the transport vehicle plate 1 (such as Figure 2 ), so as to facilitate the lifting of the molten iron ladle from the rear of the car body.

[0036] like Figure 4-Figure 6 As shown, the telescopic group 22 includes a sliding rod 221 slidably arranged on the upper part of the front arm 21, the upper side of the sliding rod 221 is connected to the lower side of the connecting frame 23, and an electric telescopic rod 222 is installed on the front side of the lower part of the front arm 21. The telescopic end of the electric telescopic rod 222 passes through the front arm 21 and is connected to the sliding rod 221. The electric telescopic rod 222 is controlled to extend to drive the connecting frame 23 to move up through the sliding rod 221, and the connecting frame 23 will drive the front half cover 3 to move up. The electric telescopic rod 222 is controlled to shrink to move the front half cover 3 downward. The degree of automation is high, and the swing of the front arm 21 will drive the electric telescopic rod 222 to swing.

[0037] like Figure 7 and Figure 8 As shown, the telescopic group 42 includes two sliding rods 421 slidingly arranged on the upper part of the rear leg 41 and facing each other left and right. The upper end of the sliding rod 421 is hingedly connected to the lower side of the connecting frame 43. The swing of the rear leg 41 will drive the connecting frame 43 to swing through the sliding rod 421, and the connecting frame 43 will drive the rear half cover 3 to swing. The upper side of the connecting frame 422 is rotated with an electric telescopic rod 423 parallel to the rear leg 41. The telescopic end of the electric telescopic rod 423 is connected to the lower side of the connecting frame 43 for rotation. The electric telescopic rod 423 is controlled to extend to drive the rear half cover 3 to move up through the connecting frame 43. The electric telescopic rod 423 is controlled to contract to move the rear half cover 3 down, thereby realizing the parallel state height adjustment of the rear half cover 3.

[0038] like Figure 1 , Figure 2 and Figure 3As shown, it also includes a front limiter 11 and a rear limiter 12 respectively connected to the front and rear sides of the transport vehicle plate 1. The front limiter 11 is located on the side of the transport vehicle plate 1 close to the front swing arm unit 2. The front limiter 11 is suitable for limiting and supporting the front arm 21. When the front half cover 3 is folded up, the front arm 21 swings forward and will gradually approach the front limiter 11. When the front arm 21 swings forward to the upper side of the front limiter 11, the control of the hydraulic cylinder 1 24 can be stopped. The rear limiter 12 is located on the side of the transport vehicle plate 1 close to the rear swing arm unit 4. The rear limiter 12 is suitable for limiting and supporting the rear support leg 41 at the rear. When the rear half cover 3 is folded up, the rear support leg 41 swings backward and will gradually approach the rear limiter 12. When the rear support leg 41 swings backward to the upper side of the rear limiter 12, the control of the hydraulic cylinder 2 44 can be stopped, thereby utilizing the front limiter 11 and the rear limiter 12 to improve stability.

[0039] like Figure 4 and Figure 7 As shown, it also includes an elastic telescopic rod 51 and a stabilizing clamp 52. The upper side of the transport vehicle plate 1 has two front and rear opposing enclosures 10, and the enclosures 10 are semicircular in shape. A placement platform for placing the molten iron ladle on the transport vehicle plate 1 is formed between the two enclosures 10. The enclosures 10 are used to improve the safety of the molten iron ladle during transportation. The two enclosures 10 are both located between the front swing arm unit 2 and the rear swing arm unit 4, so that the front and rear half covers 3 approach each other and move to the top of the enclosures 10 and cover the upper side of the molten iron ladle in parallel; two elastic telescopic rods 51 opposite to each other are provided on the two enclosures 10, and a stabilizing clamp 52 located on the placement platform of the transport vehicle plate 1 is connected between the movable ends of the two elastic telescopic rods 51 on the same enclosure 10. When the molten iron ladle is placed on the placement platform of the transport vehicle plate 1, the stabilizing clamp 52 is used to clamp the molten iron ladle adaptively according to the size of the molten iron ladle through the elastic telescopic rod 51 to further improve stability.

[0040] like Fig. 9 As shown, the elastic telescopic rod 51 includes a guide sleeve 511 arranged on the enclosure part 10, and a slide rod 512 connected to the stabilizing clamp 52 is slidably arranged on the guide sleeve 511. A spring 513 located inside the guide sleeve 511 is connected between the slide rod 512 and the guide sleeve 511. The spring 513 is used for resetting the sliding slide rod 512. When the molten iron ladle squeezes the stabilizing clamp 52, the spring 513 acts to make the slide rod 512 drive the stabilizing clamp 52 to adaptively clamp the molten iron ladle.

[0041] like Figure 4 and Figure 7As shown, it also includes a transmission rod 53 and a connecting rod 1 54, a guide sleeve 511 slides through the enclosure 10, a transmission rod 53 is connected to one side of the front arm 21, and a connecting rod 1 54 rotates between the transmission rod 53 and the guide sleeve 511 on the enclosure 10 close to the front rotating arm unit 2. When the front arm 21 drives the front half cover 3 to swing back to cover the molten iron ladle, the front arm 21 will also drive the connecting rod 1 54 to swing through the transmission rod 53, and the connecting rod 1 54 will drive the front stabilizing clamp 52 to move backward and actively clamp the molten iron ladle through the front elastic telescopic rod 51. When the front arm 21 drives the front half cover 3 to swing forward away from the molten iron ladle, the front stabilizing clamp 52 will also move forward to release the molten iron ladle (such as Figure 6 ); A connecting rod 2 55 is rotated between the connecting frame 422 and the upper guide sleeve 511 of the enclosure 10 near the rear swing arm unit 4. The connecting rod 2 55 is similar to the connecting rod 1 54. When the rear support leg 41 drives the rear half cover 3 to swing forward to cover the molten iron ladle, the rear support leg 41 will also drive the connecting rod 2 55 to swing through the connecting frame 422, and the connecting rod 2 55 will drive the rear stable clamp 52 to move forward through the rear elastic telescopic rod 51 to actively clamp the molten iron ladle (such as Figure 7 ), when the rear supporting leg 41 drives the rear half cover 3 to swing back and away from the molten iron ladle, the rear stabilizing clamp 52 also moves backward and releases the molten iron ladle.

[0042] like Figure 3 , Fig.10 and Fig.11 As shown, it also includes two groups of left and right opposite slides 61 arranged on the platform where the transport vehicle plate 1 is placed. The upper part of the slide 61 is slidably provided with a limit block 62 for contacting the side suspension shaft of the molten iron ladle. A screw 63 threadedly connected to the limit block 62 is rotated on the slide 61. The rotation of the screw 63 drives the limit block 62 to rise and fall along the slide 61 to adjust the support height of the limit block 62 according to the height of the side suspension shaft of the molten iron ladle. A rotating handle 64 is rotated on the slide 61. The rotating handle 64 and the screw 63 are both connected with a bevel gear 65. The two bevel gears 65 are meshed with each other. Rotating the rotating handle 64 drives the bevel gear 65 to rotate, and the screw 63 is driven to rotate under the meshing action of the two bevel gears 65.

[0043] like Fig.10As shown, it also includes a bidirectional screw rod 66 and a rotating handle 67. Each group of slides 61 has two slides 61 opposite to each other. The limit blocks 62 on the two opposite slides 61 cooperate with each other to resist the iron ladle suspension axis on the same side. The slide 61 is slidably arranged on the transport vehicle plate 1. The left and right sides of the transport vehicle plate 1 are both rotatably provided with a bidirectional screw rod 66. The two opposite slides 61 in the same group of slides 61 are respectively threadedly connected to the two sides of the same bidirectional screw rod 66. The bidirectional screw rod 66 is rotated to drive the two front and rear opposite slides 61 to move toward each other. When hoisting the iron ladle, the two front and rear opposite slides 61 are moved away from each other to form an avoidance position for the iron ladle. After the iron ladle is placed, the two front and rear opposite slides 61 are approached to each other to drive the limit blocks 62 to move to support the iron ladle suspension axis. A notch 60 is opened on the enclosure 10 for the rotating handle 64 to pass through.

[0044] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. They only express the preferred implementation modes of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention.

[0045] It should be pointed out that, for ordinary technicians in this field, several modifications, increases and decreases in quantity, improvements and substitutions can be made without departing from the concept of the present invention. Therefore, based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.

Claims

1. A molten iron ladle transport vehicle with an automatic covering structure, comprising a transport vehicle plate (1) mounted at the rear of the vehicle body, a front rotating arm unit (2) and a rear rotating arm unit (4) respectively arranged on both sides of the transport vehicle plate (1), the front rotating arm unit (2) and the rear rotating arm unit (4) are both provided with a half cover (3), and the two half covers (3) are suitable for covering the upper side of the molten iron ladle on the transport vehicle plate (1); characterized in that: The front swing arm assembly (2) comprises a front arm (21) rotatably mounted on the transport vehicle plate (1), a telescopic group (22) connected to one of the two half covers (3) through a connecting frame (23) is provided on the front arm (21), a hydraulic cylinder (24) is rotatably mounted on the transport vehicle plate (1), a piston rod of the hydraulic cylinder (24) is rotatably connected to the front arm (21); the rear swing arm assembly (4) comprises a rear support leg (41) rotatably mounted on the transport vehicle plate (1), a telescopic group (42) connected to the other of the two half covers (3) through a connecting frame (43) is provided on the rear support leg (41), a hydraulic cylinder (44) is rotatably mounted on the transport vehicle, a piston rod of the hydraulic cylinder (44) is rotatably connected to the rear support leg (41) through a connecting frame (422).

2. The ladle transport vehicle with automatic covering structure according to claim 1, characterized in that: The front swing arm unit (2) is located on one side of the transport vehicle plate (1) when it is installed at the rear of the vehicle body. The rear swing arm unit (4) has two rear legs (41) in total. The connecting frame (422) is rotatably arranged between the two rear legs (41). The piston rod of the second hydraulic cylinder (44) is rotatably connected to the connecting frame (422). The second telescopic group (42) is arranged on each of the two rear legs (41). Each of the second telescopic groups (42) has two hinge points with the lower side of the second connecting frame (43).

3. The ladle transport vehicle with automatic covering structure according to claim 2, characterized in that: The telescopic group (22) comprises a sliding rod (221) slidably arranged on the upper part of the front arm (21), the sliding rod (221) being connected to the connecting frame (23), and an electric telescopic rod (222) being installed at the lower part of the front arm (21), the telescopic end of the electric telescopic rod (222) being connected to the sliding rod (221).

4. The ladle transport vehicle with automatic covering structure according to claim 3, characterized in that: The telescopic group (42) comprises two sliding rods (421) slidably arranged on the upper part of the rear leg (41), the upper end of the sliding rod (421) is hingedly connected to the lower side of the connecting frame (43), and the connecting frame (422) is rotatably provided with an electric telescopic rod (423) parallel to the rear leg (41), and the telescopic end of the electric telescopic rod (423) is rotatably connected to the connecting frame (43).

5. The ladle transport vehicle with automatic covering structure according to claim 1, characterized in that: It also includes a front stopper (11) and a rear stopper (12) respectively connected to the front and rear sides of the transport vehicle plate (1); the front stopper (11) is located on a side of the transport vehicle plate (1) close to the front swing arm assembly (2); the front stopper (11) is suitable for limiting and supporting the front upper arm (21); the rear stopper (12) is located on a side of the transport vehicle plate (1) close to the rear swing arm assembly (4); the rear stopper (12) is suitable for limiting and supporting the rear support leg (41) at the rear.

6. The ladle transport vehicle with automatic covering structure according to claim 4, characterized in that: It also includes an elastic telescopic rod (51) and a stabilizing clamp (52), the upper side of the transport vehicle plate (1) has two opposing enclosures (10), a placement platform for placing a molten iron ladle on the transport vehicle plate (1) is formed between the two enclosures (10), and the two enclosures (10) are both located between the front swing arm unit (2) and the rear swing arm unit (4); the two enclosures (10) are both provided with the elastic telescopic rod (51), and the movable end of the elastic telescopic rod (51) is connected to the stabilizing clamp (52) located on the placement platform of the transport vehicle plate (1).

7. The ladle transport vehicle with automatic covering structure according to claim 6, characterized in that: The elastic telescopic rod (51) comprises a guide sleeve (511) arranged on the enclosure portion (10), a sliding rod (512) connected to the stabilizing clamp (52) slidingly disposed on the guide sleeve (511), and a spring (513) located inside the guide sleeve (511) connected between the sliding rod (512) and the guide sleeve (511).

8. The ladle transport vehicle with automatic covering structure according to claim 7, characterized in that: It also includes a transmission rod (53) and a connecting rod 1 (54), the guide sleeve (511) slidably penetrates the enclosure (10), one side of the front arm (21) is connected to the transmission rod (53), the connecting rod 1 (54) is rotatably connected between the transmission rod (53) and the guide sleeve (511) on the enclosure (10) close to the front swing arm assembly (2); and the connecting rod 2 (55) is rotatably connected between the connecting frame (422) and the guide sleeve (511) on the enclosure (10) close to the rear swing arm assembly (4).

9. The ladle transport vehicle with automatic covering structure according to claim 6, characterized in that: It also includes two sets of slides (61) arranged on the platform where the transport vehicle plate (1) is placed, the upper part of the slide (61) is slidably provided with a limit block (62) for contacting the suspension shaft on the side of the molten iron ladle, the slide (61) is provided with a screw rod (63) threadedly connected to the limit block (62) and rotatable, the slide (61) is provided with a rotating handle (64) rotatable, the rotating handle (64) and the screw rod (63) are both connected to bevel gears (65), and the two bevel gears (65) are meshed with each other.

10. The ladle transport vehicle with automatic covering structure according to claim 9, characterized in that: It also includes a bidirectional screw rod (66) and a second rotating handle (67), each group of slides (61) has two opposing slides (61), the limit blocks (62) on the two opposing slides (61) cooperate with each other to resist the iron ladle suspension shaft on the same side, the slides (61) are slidably arranged on the transport vehicle plate (1), the bidirectional screw rod (66) is rotatably arranged on both sides of the transport vehicle plate (1), and the two opposing slides (61) in the same group of slides (61) are respectively threadedly connected to the two sides of the same bidirectional screw rod (66); the enclosure portion (10) is provided with a notch (60) for the first rotating handle (64) to pass through.

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