Electric traction locomotive for molten steel pouring ladle

Abstract

The utility model relates to the technical field of electric traction locomotives, one embodiment of the utility model provides an electric traction locomotive for a molten steel pouring ladle, the electric traction locomotive comprises a locomotive body, the locomotive body comprises a rack, a plurality of driving wheels are arranged at the bottom of the rack, and the electric traction locomotive further comprises a cold water tank, two water pumping mechanisms, two square pipes, two groups of high-pressure nozzles and an adjusting mechanism; the top end of the cold water tank is fixedly connected to the bottom end of the middle of the rack, the two water pumping mechanisms are arranged on the two sides of the cold water tank correspondingly and used for pumping out cold water in the cold water tank, the two square pipes are arranged on the two sides of the water pumping mechanisms through rotating supporting pieces, one ends of the two sets of high-pressure nozzles communicate with the square pipes, and each set of high-pressure nozzles comprises a plurality of high-pressure nozzles. The adjusting mechanism is arranged on the square pipe and used for adjusting the water spraying amount of the high-pressure sprayer. By means of the technical scheme, the technical problem that in the prior art, the water spraying amount of an atomization nozzle is difficult to adjust according to the temperature of a driving wheel is solved.

Description

Technical Field

[0001] Embodiments of this disclosure relate to the field of electric traction locomotive technology, and more specifically, to electric traction locomotives for steel casting ladles. Background Technology

[0002] In the steel smelting industry, many steel plants need to pour the high-temperature molten steel from the steelmaking converter into a molten steel ladle after the steelmaking process is completed in the steelmaking converter. The molten steel is then transported from the steelmaking area to the place where it is needed. Generally, electric locomotives are used to pull the molten steel ladle and other steel containers to transfer the steel.

[0003] However, during the transfer of molten steel ladles by electric traction locomotives, the high temperature of the molten steel may cause the drive wheels to become extremely hot. This could result in burns to nearby workers who accidentally touch the drive wheels while getting on or off the locomotive.

[0004] In existing technologies, high-temperature resistant materials and protective coatings are typically used to insulate key components of locomotives, such as motors and electrical equipment. However, these materials are not suitable for the locomotive's drive wheels and external frame, which have high thermal conductivity. Chinese patent CN219096709U discloses an electric traction locomotive for blast furnace tapping. This locomotive pumps cold water from the storage tank into the distribution pipe via a water pump and connecting pipe, and then sprays the water onto the outside of the drive wheel assembly through atomizing nozzles to reduce the temperature of the drive wheel assembly and track. However, the spray direction of the atomizing nozzles is always towards the drive wheels. Since the side area of ​​the drive wheels is large, the spray area of ​​the atomizing nozzles may not be able to completely cover the drive wheels. Furthermore, the spray volume of the atomizing nozzles is difficult to adjust according to the temperature of the drive wheels, which may waste a lot of water and has limitations. Utility Model Content

[0005] To overcome the above-mentioned defects, embodiments of this disclosure provide an electric traction locomotive for steel casting ladles, which solves the technical problem in the prior art that the atomizing nozzle is difficult to adjust the amount of water sprayed according to the temperature of the drive wheel.

[0006] According to one aspect, at least one embodiment of this disclosure provides an electric traction locomotive for a molten steel casting ladle, including a locomotive body, the locomotive body including a frame, a plurality of drive wheels disposed at the bottom of the frame, and further comprising:

[0007] The cold water tank is fixedly connected at the bottom of the middle part of the frame;

[0008] Two pumping mechanisms are respectively arranged on both sides of the cold water tank for pumping out cold water from the cold water tank.

[0009] Two square tubes are mounted on both sides of the pumping mechanism via rotating supports.

[0010] Two sets of high-pressure nozzles, one end of each set of high-pressure nozzles being connected to the square tube, and each set of high-pressure nozzles including multiple high-pressure nozzles;

[0011] An adjustment mechanism is provided on the square tube and is used to adjust the water spray volume of the high-pressure nozzle.

[0012] Preferably, the pumping mechanism includes:

[0013] A water pumping pipe, one end of which is connected to the cold water tank;

[0014] A water pump is installed on the outer wall of the cold water tank, and the input end of the water pump is connected to the other end of the water pumping pipe.

[0015] One end of the water outlet pipe is connected to the output end of the water pump.

[0016] The main connecting pipe is connected to the other end of the outlet pipe in the middle.

[0017] Preferably, the rotating support includes:

[0018] Rotary joint, with both ends of the main connecting pipe connected to the rotary joint;

[0019] The auxiliary connecting pipe has one end connected to one end of the rotary joint, and the other end connected to one end of the square tube;

[0020] One end of the rotating shaft is fixedly connected to the other end of the auxiliary connecting pipe;

[0021] A fixed base is fixedly connected to the frame, and one end of the fixed base is rotatably connected to the other end of the rotating shaft;

[0022] The motor is mounted on the outer wall of the other end of the fixed base, and the output end of the motor passes through the fixed base and is coaxially connected to the other end of the rotating shaft.

[0023] Furthermore, the adjustment mechanism includes:

[0024] A cylinder is mounted on the outer wall of the square tube, and the output end of the cylinder extends through the outer wall of the square tube.

[0025] A connecting plate, one end of which is fixedly connected to the output end of the cylinder;

[0026] Multiple extrusion blocks, one end of each of the multiple extrusion blocks is fixedly connected to the other end of the connecting plate, and the other end of the extrusion block is slidably engaged with one end of the high-pressure nozzle;

[0027] A sealing element is disposed on the outer wall of the square tube and is used to seal the connection between the cylinder output end and the square tube.

[0028] Furthermore, the seal includes:

[0029] A sleeve, which is embedded in and communicates with the square tube;

[0030] A sealing ring, the outer wall of which fits against the inner wall of the sleeve and slides with the sleeve, the sealing ring being sleeved on the output end of the cylinder.

[0031] Furthermore, the water outlet pipe is perpendicular to the cold water tank and located at the center of the frame, and the two square tubes are symmetrically arranged on both sides of the water outlet pipe with the axis of the water outlet pipe as the center.

[0032] More preferably, support assemblies are provided on both sides of the water outlet pipe, the support assemblies including:

[0033] A support base, one end of which is fixedly connected to the outer wall of the cold water tank;

[0034] A support plate, one end of which is fixedly connected to the other end of the support base;

[0035] A support ring is sleeved on the water outlet pipe, and one end of the support ring is fixedly connected to the other end of the support plate.

[0036] In order to fully spray each of the drive wheels, as a further embodiment of this application, the spray width of each group of high-pressure nozzles is greater than the diameter of the drive wheel.

[0037] In order to control the water flow rate entering the high-pressure nozzle, as a further embodiment of this application, the squeezing block is aligned with the axis of the high-pressure nozzle, and the other end of the squeezing block is a flat-topped cone.

[0038] In order to prevent cold water from entering the high-pressure nozzle, a rubber ring is fitted on the extrusion block based on the aforementioned solution.

[0039] The beneficial effects of the embodiments disclosed herein are as follows:

[0040] 1. In this disclosure, through the cooperation of the pumping mechanism, square tube, high-pressure nozzle and rotating support, the cold water in the cold water tank is pumped out and transferred to the high-pressure nozzle by starting the pump. The motor is started, and the output end of the motor rotates to drive the rotating shaft, square tube and auxiliary connecting pipe to rotate, thereby driving the high-pressure nozzle to rotate. When the motor rotates forward and then reverses, it drives the high-pressure nozzle to swing up and down to repeatedly spray cold water onto the drive wheel to lower its temperature.

[0041] 2. In this disclosure, by setting an adjustment mechanism, when the temperature of the drive wheel is low, the cylinder works, and the output end of the cylinder pushes the extrusion block to move towards the high-pressure nozzle. The water inlet at one end of the high-pressure nozzle is gradually "blocked" by the extrusion block, and the water inlet gradually decreases. If the output end of the cylinder contracts, the water spray volume can be increased. This adjusts the water spray volume of the high-pressure nozzle and avoids water waste. By setting a sleeve and a sealing ring, the sealing is maintained during the movement of the output end of the cylinder. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0043] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present disclosure;

[0044] Figure 2 This is a schematic diagram of the structure of the locomotive body in one embodiment of the present disclosure;

[0045] Figure 3 This is a partial structural cross-sectional view of the whole in one embodiment of this disclosure;

[0046] Figure 4 This is a schematic diagram of the structure of a cold water tank, two pumping mechanisms, two square tubes, two sets of high-pressure nozzles, and an adjustment mechanism in one embodiment of this disclosure.

[0047] Figure 5 For one embodiment of this disclosure Figure 4 Enlarged view of the local structure at point A;

[0048] Figure 6 This is a partial structural cross-sectional view of the cooperation between the square tube and the adjustment mechanism in one embodiment of this disclosure;

[0049] Figure 7 This is an exploded view of the adjustment mechanism in one embodiment of the present disclosure.

[0050] In the diagram: 1. Locomotive body; 2. Frame; 3. Drive wheel; 4. Cooling water tank; 5. Square tube; 6. High-pressure nozzle; 7. Pumping pipe; 8. Pumping pump; 9. Outlet pipe; 10. Main connecting pipe; 11. Rotary joint; 12. Secondary connecting pipe; 13. Shaft; 14. Fixed seat; 15. Motor; 16. Cylinder; 17. Connecting plate; 18. Extrusion block; 19. Sleeve; 20. Sealing ring; 21. Support seat; 22. Support plate; 23. Support ring; 24. Rubber ring. Detailed Implementation

[0051] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0052] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0053] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0054] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0056] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0057] like Figures 1-7As shown, it illustrates an electric traction locomotive for molten steel casting ladles according to an embodiment of the present disclosure. The electric traction locomotive for molten steel casting ladles includes a locomotive body 1, which includes a frame 2. The bottom of the frame 2 is provided with multiple drive wheels 3. It also includes a cold water tank 4, two pumping mechanisms, two square tubes 5, two sets of high-pressure nozzles 6, and an adjustment mechanism. The top of the cold water tank 4 is fixedly connected to the bottom of the middle part of the frame 2, and the cold water tank 4 is filled with cold water.

[0058] Two pumping mechanisms are respectively set on both sides of the cold water tank 4 to pump out the cold water in the cold water tank 4. The pumping mechanism includes a pumping pipe 7, a pumping pump 8, an outlet pipe 9 and a main connecting pipe 10. One end of the pumping pipe 7 is connected to the cold water tank 4. The pumping pump 8 is installed on the outer wall of the cold water tank 4. The input end of the pumping pump 8 is connected to the other end of the pumping pipe 7. One end of the outlet pipe 9 is connected to the output end of the pumping pump 8. The outlet pipe 9 is perpendicular to the cold water tank 4 and located at the center of the frame 2. Two square pipes 5 are symmetrically arranged on both sides of the outlet pipe 9 with the axis of the outlet pipe 9 as the center. The middle part of the main connecting pipe 10 is connected to the other end of the outlet pipe 9. By starting the pumping pump 8, the cold water in the cold water tank 4 is pumped out. The cold water is transferred to the main connecting pipe 10 in sequence through the pumping pipe 7, the pumping pump 8 and the outlet pipe 9, and then transferred to both sides in the main connecting pipe 10.

[0059] Two square tubes 5 are mounted on both sides of the pumping mechanism via rotating supports. The rotating supports include a rotary joint 11, a secondary connecting pipe 12, a rotating shaft 13, a fixed base 14, and a motor 15. Both ends of the main connecting pipe 10 are connected to the rotary joint 11. The rotary joint 11 is a commercially available water pipe rotary joint 11, a device used to connect water pipes and allow the pipes to rotate within a certain angle. One end of the secondary connecting pipe 12 is connected to one end of the rotary joint 11, and the other end of the secondary connecting pipe 12 is connected to one end of the square tube 5. The rotating shaft 13... One end of the fixed base 14 is fixedly connected to the other end of the auxiliary connecting pipe 12. The fixed base 14 is fixedly connected to the frame 2. One end of the fixed base 14 is rotatably connected to the other end of the rotating shaft 13. The motor 15 is installed on the outer side wall of the other end of the fixed base 14. The output end of the motor 15 passes through the fixed base 14 and is coaxially connected to the other end of the rotating shaft 13. By starting the motor 15, the output end of the motor 15 rotates and drives the rotating shaft 13 to rotate. The rotating shaft 13 rotates under the support of the fixed base 14. The rotation of the rotating shaft 13 drives the square tube 5 and the auxiliary connecting pipe 12 to rotate.

[0060] Support components are provided on both sides of the water outlet pipe 9. The support components include a support base 21, a support plate 22, and a support ring 23. One end of the support base 21 is fixedly connected to the outer wall of the cold water tank 4, one end of the support plate 22 is fixedly connected to the other end of the support base 21, and the support ring 23 is sleeved on the water outlet pipe 9. One end of the support ring 23 is fixedly connected to the other end of the support plate 22, so as to support the main connecting pipe 10 and keep it stable.

[0061] One end of each of the two sets of high-pressure nozzles 6 is connected to the square tube 5. Each set of high-pressure nozzles 6 includes multiple high-pressure nozzles 6. The spray width of each set of high-pressure nozzles 6 is greater than the diameter of the drive wheel 3. Each set of high-pressure nozzles 6 corresponds to a drive wheel 3. The high-pressure nozzles 6 rotate in conjunction with the rotating support. The motor 15 rotates forward and then reverses, thus driving the high-pressure nozzles 6 to swing up and down, which can cool down the steel parts near the drive wheel 3 machine.

[0062] In this disclosure, such as Figure 6 , Figure 7 As shown, the adjustment mechanism is installed on the square tube 5 and is used to adjust the water spray volume of the high-pressure nozzle 6. The adjustment mechanism includes a cylinder 16, a connecting plate 17, multiple squeezing blocks 18, and a sealing element. The cylinder 16 is installed on the outer wall of the square tube 5, and the output end of the cylinder 16 passes through the outer wall of the square tube 5 and extends thereafter. One end of the connecting plate 17 is fixedly connected to the output end of the cylinder 16. One end of each of the multiple squeezing blocks 18 is fixedly connected to the other end of the connecting plate 17, and the other end of the squeezing blocks 18 is slidably engaged with one end of the high-pressure nozzle 6. One end of the high-pressure nozzle 6 has a water inlet. The axis of the extrusion block 18 coincides with the axis of the water inlet of the high-pressure nozzle 6. The other end of the extrusion block 18 is a flat-topped cone. The cross-sectional area of ​​the water inlet is the same as the cross-sectional area of ​​the larger end of the extrusion block 18. A rubber ring 24 is fitted on the extrusion block 18. A sealing element is set on the outer wall of the square tube 5 to seal the connection between the output end of the cylinder 16 and the square tube 5. The sealing element includes a sleeve 19 and a sealing ring 20. The sleeve 19 is embedded in the square tube 5 and communicates with the square tube 5. The outer wall of the sealing ring 20 fits against the inner wall of the sleeve 19 and slides with the sleeve 19. The sealing ring 20 is fitted onto the output end of the cylinder 16. When the locomotive body 1 is filled with molten steel, the temperature of the locomotive body 1 and the drive wheel 3 gradually increases. However, since the molten steel is placed in a ladle on another car body on one side of the locomotive body 1, the heat transfer rate is not too fast. When the temperature of the drive wheel 3 is low, the cylinder 16 operates, and the output end of the cylinder 16 pushes the connecting plate 17 towards the high-pressure nozzle 6. The connecting plate 17 drives multiple extrusion blocks 18 to move. During the movement of the extrusion blocks 18, the high-pressure nozzle... The water inlet at one end of the head 6 is gradually "blocked" by the squeezing block 18, and the water inlet gradually decreases. The output end of the cylinder 16 drives the sealing ring 20 to move inside the sleeve 19 and it is difficult to disengage from the sleeve 19. In this way, when the cylinder 16 is working, its output end moves to maintain the seal. When the squeezing block 18 drives the rubber ring 24 to fully enter the high-pressure nozzle 6, cold water is difficult to enter the high-pressure nozzle 6, so the high-pressure nozzle 6 stops spraying water. If the output end of the cylinder 16 contracts, the water spray volume can be increased. This is how to adjust the water spray volume of the high-pressure nozzle 6.

[0063] Working principle: When the locomotive body 1 pulls the car body loaded with molten steel, as the temperature of the multiple drive wheels 3 and surrounding steel or metal parts on the lower side of the locomotive body 1 gradually rises, the extrusion block 18 and rubber ring 24 block the water inlet of the high-pressure nozzle 6. The cold water in the cold water tank 4 is drawn out by the water pump 8. The cold water is transferred to the main connecting pipe 10 through the water pump 8 and the water outlet pipe 9 in sequence. Then, it is transferred to both sides of the main connecting pipe 10 into the square pipe 5. The cylinder 16 works, and the output end of the cylinder 16 drives the connecting plate 17 away from the high-pressure nozzle 6. The connecting plate 17 drives the multiple extrusion blocks 18 away from the high-pressure nozzle 6. The cold water inside the square tube 5 is transferred from the gap between the extrusion block 18 and one end of the high-pressure nozzle 6 to the other end of the plaster nozzle and sprayed onto the drive wheel 3. The longer the contraction distance of the output end of the cylinder 16, the greater the water volume sprayed by the high-pressure nozzle 6. Then, by starting the motor 15, the output end of the motor 15 rotates, driving the rotating shaft 13 to rotate. The rotating shaft 13 rotates under the support of the fixed seat 14. The rotation of the rotating shaft 13 drives the square tube 5 and the auxiliary connecting pipe 12 to rotate, thus driving the high-pressure nozzle 6 to rotate. When the motor 15 rotates forward and then reverses, it drives the high-pressure nozzle 6 to "swing" up and down, which can cool down the steel parts near the drive wheel 3 machine.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A power tractor for a steel ladle, comprising a tractor body (1) including a frame (2) provided at the bottom thereof with a plurality of drive wheels (3), characterized in that, Also include: Cold water tank (4), the top end is fixedly connected to the bottom end of the middle part of the rack (2); Two water pumping mechanisms, two said water pumping mechanisms are respectively arranged on both sides of the cold water tank (4), for pumping out the cold water in the cold water tank (4); Two square tubes (5), two said square tubes (5) are arranged on both sides of the water pumping mechanism through rotating supports; Two groups of high pressure nozzles (6), one end of two groups of said high pressure nozzles (6) is communicated with the square tube (5), each group of said high pressure nozzles (6) includes a plurality of said high pressure nozzles (6); Adjusting mechanism, said adjusting mechanism is arranged on the square tube (5), for adjusting the water spraying amount of the high pressure nozzle (6).

2. The electric traction locomotive for a steel ladle according to claim 1, characterized by Said water pumping mechanism includes: Water pumping pipe (7), one end of which is communicated with the cold water tank (4); Water pumping pump (8), installed on the outer side wall of the cold water tank (4), the input end of the water pumping pump (8) is communicated with the other end of the water pumping pipe (7); Water outlet pipe (9), one end of which is communicated with the output end of the water pumping pump (8); Main connecting pipe (10), the middle part of which is communicated with the other end of the water outlet pipe (9).

3. The electric traction locomotive for a steel ladle according to claim 2, characterized by Said rotating support includes: Rotary joint (11), both ends of the main connecting pipe (10) are communicated with the rotary joint (11); Sub connecting pipe (12), one end of which is communicated with one end of the rotary joint (11), the other end of the sub connecting pipe (12) is communicated with one end of the square tube (5); Rotating shaft (13), one end of which is fixedly connected with the other end of the sub connecting pipe (12); Fixed seat (14), fixedly connected with the rack (2), one end of the fixed seat (14) is rotatably connected with the other end of the rotating shaft (13); Motor (15), installed on the outer side wall of the other end of the fixed seat (14), the output end of the motor (15) penetrates the fixed seat (14) and is coaxially connected with the other end of the rotating shaft (13).

4. The electric traction locomotive for a steel ladle according to claim 3, characterized by Said adjusting mechanism includes: Cylinder (16), installed on the outer side wall of the square tube (5), the output end of the cylinder (16) penetrates the outer side wall of the square tube (5) and extends; Connecting plate (17), one end of which is fixedly connected with the output end of the cylinder (16); A plurality of extrusion blocks (18), one end of each of a plurality of said extrusion blocks (18) is fixedly connected with the other end of the connecting plate (17), the other end of the extrusion block (18) is slidably matched with one end of the high pressure nozzle (6); Sealing element, said sealing element is arranged on the outer side wall of the square tube (5), for sealing the connection between the output end of the cylinder (16) and the square tube (5).

5. The electric traction locomotive for a steel ladle according to claim 4, characterized by Said sealing element includes: Sleeve (19), embedded in the square tube (5) and communicated with the square tube (5); Sealing ring (20), the outer side wall of the sealing ring (20) is matched with the inner wall of the sleeve (19) and slidably matched with the sleeve (19), the sealing ring (20) is sleeved on the output end of the cylinder (16).

6. The electric traction locomotive for a steel ladle according to claim 2, characterized by The water outlet pipe (9) is perpendicular to the cold water tank (4) and is located at the center of the rack (2), and two square pipes (5) are symmetrically arranged on both sides of the water outlet pipe (9) with the axis of the water outlet pipe (9) as the center.

7. The electric traction locomotive for a steel ladle according to claim 2, characterized by Both sides of the water outlet pipe (9) are provided with a support assembly, and the support assembly comprises: A support seat (21) is fixedly connected to the outer side wall of the cold water tank (4) at one end; A support plate (22) is fixedly connected to the other end of the support seat (21) at one end; A support ring (23) is sleeved on the water outlet pipe (9), and one end of the support ring (23) is fixedly connected to the other end of the support plate (22).

8. The electric traction locomotive for a steel ladle according to claim 1, characterized by, The spraying width of each group of high-pressure nozzles (6) is greater than the diameter of the driving wheel (3).

9. The electric traction locomotive for a steel ladle according to claim 4, characterized by The extrusion block (18) coincides with the axis of the high-pressure nozzle (6), and the other end of the extrusion block (18) is a flat top pyramid.

10. The electric traction locomotive for a steel ladle according to claim 4, characterized by A rubber ring (24) is sleeved on the extrusion block (18).

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