Hydraulic jacking free steering beam transporting tank trolley and using method

Abstract

The invention discloses a hydraulic jacking free steering beam transporting tank trolley, and relates to the technical field of transportation equipment, the hydraulic jacking free steering beam transporting tank trolley comprises a transportation assembly and a steering assembly, the steering assembly is used for automatically adjusting the moving angle of the beam transporting tank trolley, and the steering assembly comprises a moving mechanism and a direction adjusting mechanism; the rotating directions of the moving mechanism and the direction adjusting mechanism are adjustable, and the moving mechanism and the direction adjusting mechanism are used for achieving free steering operation of the trolley. A driving motor is started, an output shaft of the driving motor drives a driving gear and a driven gear ring to rotate, the angle of a supporting cover is adjusted along a guide rail, after the angle is adjusted, a beam transporting tank trolley can be pulled, moving wheels roll on the ground, rollers make contact with the ground, and a mounting cover can automatically rotate by an angle along with the moving wheels; an auxiliary traction trolley with an angle adjusting function does not need to be additionally arranged for cooperative traction, and the problem that an existing beam transporting trolley is single in walking direction and cannot automatically adjust the advancing angle is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transportation equipment, in particular to a hydraulic jacking free steering beam transporting tank trolley and a use method. BACKGROUND

[0002] The beam transporting tank trolley is a special engineering equipment for large tonnage component transportation and positioning, which is mainly used in the construction site of bridge engineering and steel structure construction engineering, for example: first, the steel beam after assembly is moved from the assembly jig frame to the beam storage area, and from the beam storage area to the hoisting position; second, the in-site displacement of large-span steel structure prefabricated beam; third, the beam body steering and track switching in complex site, such as the cross transfer between arc track and straight track.

[0003] In the prior art, the wheel set is usually of a fixed direction type structure, the wheel shaft is rigidly connected with the main body of the trolley, and only one-way travel along the linear track of the preset track can be realized. The beam transporting tank trolley has a single walking direction and cannot autonomously adjust the travel angle. If the turning and direction changing need to be completed in the construction scene, such as switching from the arc track in the assembly area to the straight track in the beam storage area, or adjusting the transportation direction of the steel beam, an auxiliary traction trolley with angle adjusting function must be additionally configured for cooperative traction. This not only increases the equipment configuration cost, but also needs to additionally invest manpower for the action coordination calibration of multiple devices.

[0004] Therefore, the present application provides a hydraulic jacking free steering beam transporting tank trolley and a use method to solve the above problems. SUMMARY

[0005] The present application aims to provide a hydraulic jacking free steering beam transporting tank trolley and a use method to solve the problem of the single walking direction of the current beam transporting trolley and the inability to autonomously adjust the travel angle.

[0006] In order to achieve the above object, the hydraulic jacking free steering beam transporting tank trolley is provided with the following technical scheme: a hydraulic jacking free steering beam transporting tank trolley, comprising a transporting assembly and a steering assembly, the steering assembly is used for automatically adjusting the moving angle of the beam transporting tank trolley, the steering assembly comprises a moving mechanism and a steering mechanism, and the rotating directions of the moving mechanism and the steering mechanism are adjustable, which is used for realizing the free steering operation of the trolley, and the moving mechanism is provided with a plurality of moving mechanisms; the moving mechanism comprises a fixed block, the outer surface of the fixed block is rotatably connected with a rotating sleeve, the bottom of the rotating sleeve is fixedly connected with a mounting cover, the inner walls of two sides of the mounting cover are rotatably embedded with mounting shafts, and the opposite mounting shafts are fixedly connected with a roller; the steering mechanism comprises a guide rail, a driving motor and a suspension shaft, the output shaft of the driving motor is fixedly connected with a driving gear, the outer surface of the suspension shaft is rotatably connected with a driven gear ring, the bottom of the driven gear ring is provided with an angle sensor, one end of the driven gear ring is fixedly connected with a support cover, and the opposite inner walls of the support cover are rotatably embedded with moving wheels.

[0007] Preferably, a plurality of side balls are movably connected between the outer surface of the fixed block and the inner wall of the rotating sleeve, a plurality of bottom balls are movably connected between the bottom of the fixed block and the inner bottom surface of the rotating sleeve, and the side balls and the bottom balls are used for reducing the rotating resistance between the fixed block and the rotating sleeve.

[0008] Preferably, the other two inner walls of the mounting cover are provided with dustproof plates through bolts, the two dustproof plates are symmetrically arranged, the bottom of each dustproof plate is fixedly connected with a cleaning scraper, and the outer surfaces of the two cleaning scrapers are in contact with the roller.

[0009] Preferably, the outer surface of the driving gear is meshingly connected with the outer surface of the driven gear ring, and the driven gear ring is composed of a ring gear and an extension block.

[0010] Preferably, the other two inner walls of the support cover are fixedly connected with mudguards, the mudguards are used for cleaning the dust attached to the outside of the moving wheels, the top of the support cover is fixedly connected with two limiting support columns, and the top of each limiting support column is slidably arranged in the guide rail.

[0011] Preferably, the transporting assembly comprises a bearing platform, the two sides of the bearing platform are fixedly connected with side fixed plates, the other two sides of the bearing platform are fixedly connected with traction plates, and the outer surfaces of the two traction plates are welded with two traction rings.

[0012] Preferably, the top of each fixed block is fixedly connected with the bottom of the bearing platform, the top of the guide rail is fixedly connected with the bottom of the bearing platform, the driving motor is arranged at the bottom of the bearing platform, and the suspension shaft is fixedly arranged at the bottom of the bearing platform.

[0013] Preferably, the top of the load-carrying platform is fixedly connected with a lifting assembly, the lifting assembly comprises a support base, a positioning rotating groove is formed in the support base, a positioning rotating block is rotatably connected to the inner wall of the positioning rotating groove, a load rotating disc is fixedly connected to the top of the positioning rotating block, and a plurality of needle rollers are movably connected between the outer surface of the positioning rotating block and the inner wall of the positioning rotating groove.

[0014] Preferably, the bottom of the load-carrying platform is fixedly connected with two jacking assemblies, the jacking assembly comprises a support seat, two connecting rotating rods are fixedly connected between the inner walls of the support seat, first connecting rods are rotatably connected to the outer portions of the two connecting rotating rods, second connecting rods are rotatably connected to one end of the two first connecting rods, a connecting buckle is movably connected between the two second connecting rods, a connecting frame is coupledly connected between the two second connecting rods, a connecting plate is fixedly connected to the top of the connecting frame, and adjusting hydraulic rods are arranged between the two connecting ends of the two first connecting rods and the two second connecting rods.

[0015] A use method of the hydraulic jacking free steering beam transporting tank trolley, comprising the following steps: S1, the steel beam is stably placed above the load-carrying platform, is lifted through the jacking assembly, the adjusting hydraulic rods are started to make them shrink, so that the two first connecting rods and the two second connecting rods can be rotated, the two adjusting hydraulic rods are started to adjust, the height of the two jacking assemblies is adjusted according to the stability of the load-carrying platform; S2, the beam transporting tank trolley is moved as a whole by connecting the traction equipment with the traction ring, when turning, the driving motor is started to make the output shaft drive the driving gear and the driven gear ring to rotate, and drive the support cover to adjust the angle of the center of the guide track; S3, the moving wheels roll on the ground, at the same time, all the rollers contact the ground, and the installation cover automatically follows the rotation angle of the moving wheels to complete the integrated movement; S4, the dustproof plates are installed on both sides of the rollers, the cleaning scrapers installed on the bottom sides of the dustproof plates are tightly attached to the surfaces of the rollers to clean the soil on the surfaces of the rollers in time, and the fenders on both sides of the moving wheels also have the same effect to clean the surfaces of the moving wheels in time.

[0016] Compared with the prior art, the present application has the following advantages: 1. In use, the driving motor is started to make the output shaft drive the driving gear and the driven gear ring to rotate, so that the support cover adjusts the angle along the guide track, after the angle is adjusted, the beam transporting tank trolley can be pulled, the moving wheels roll on the ground, the rollers contact the ground, and the installation cover automatically follows the rotation angle of the moving wheels, without the need of additionally configuring an auxiliary traction trolley with an angle adjusting function to cooperate with traction, so that the problem that the current beam transporting trolley has a single walking direction and cannot autonomously adjust the advancing angle is solved. 2. During use, dustproof plates are installed on both sides of the rollers, and the cleaning scrapers installed on the bottom side are in close contact with the roller surface. When the rollers rotate, the dirt on the surface can be cleaned in time, thus avoiding unevenness of the roller surface. The mudguards on both sides of the moving wheels have the same effect, which can clean the surface of the moving wheels in time, ensuring the stability of the beam transport tank trolley during beam transport. 3. During use, the textured surface of the turntable prevents the steel beam from slipping during transport. The turntable, embedded inside the support chassis, rotates, allowing the steel beam to freely rotate to the target orientation. The needle rollers reduce friction between the positioning blocks and the support chassis, resulting in smoother rotation of the turntable. By activating the adjusting hydraulic rods, the angle between the two first connecting rods is reduced, and the two second connecting rods operate on the same principle. This allows the support base to touch the ground, lifting the load-bearing platform and its supporting steel beam. The two adjusting hydraulic rods are activated separately to adjust the height of the two lifting components according to the stability of the load-bearing platform. When the road surface is uneven, the height of the two lifting components can be adjusted separately to prevent the load-bearing platform from tilting during lifting. This achieves integrated operation of walking, turning, and lifting, and avoids problems such as uneven stress on the steel beam and deviations in displacement accuracy. Attached Figure Description

[0017] Figure 1 This is a first-view perspective perspective view of a hydraulically lifted, freely steerable beam-carrying tank trolley according to the present invention. Figure 2 This is a second-view perspective perspective view of a hydraulically lifted, freely steerable beam-carrying tank trolley according to the present invention. Figure 3 This is a three-dimensional sectional view of the lifting component of a hydraulically lifted, freely steerable beam-carrying tank trolley according to the present invention. Figure 4 This is a schematic diagram of the unfolded structure of the lifting component of a hydraulically lifting, freely steerable beam-carrying tank trolley according to the present invention. Figure 5 This is a perspective view of the moving mechanism of a hydraulically lifted, freely steerable beam-carrying tank trolley according to the present invention. Figure 6 This is a sectional perspective view of the moving mechanism of a hydraulically lifted, freely steerable beam-carrying tank trolley according to the present invention. Figure 7 This is a perspective view of the steering mechanism of a hydraulically jacking, freely steering beam-carrying tank trolley according to the present invention. Figure 8 This is a three-dimensional view of the steering mechanism of a hydraulically lifted, freely steerable beam-carrying tank trolley according to the present invention.

[0018] In the picture: 1. Transport Components; 101. Load-bearing Platform; 102. Side Fixing Plate; 103. Traction Plate; 104. Traction Ring; 2. Lifting Components; 201. Support Chassis; 202. Positioning Rotary Groove; 203. Positioning Rotary Block; 204. Needle Roller; 205. Load-bearing Turntable; 3. Steering Components; 31. Moving Mechanism; 310. Mounting Cover; 311. Mounting Shaft; 312. Roller; 313. Rotating Sleeve; 314. Fixing Block; 315. Side Ball Roller; 316. Bottom Ball Roller; 317. Dustproof Plate; 318. Cleaning... 32. Scraper; 32. Orientation mechanism; 320. Guide rail; 321. Mudguard; 322. Drive motor; 323. Suspension shaft; 324. Support cover; 325. Drive gear; 326. Driven gear ring; 327. Moving wheel; 328. Angle sensor; 329. Limiting support column; 4. Lifting assembly; 401. Connecting plate; 402. Connecting frame; 403. Connecting buckle; 404. First connecting rod; 405. Second connecting rod; 406. Adjusting hydraulic rod; 407. Connecting rotating rod; 408. Support seat. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Refer to Figures 1-8As shown, the present invention provides a technical solution: a hydraulically lifted, freely steerable beam-carrying tank trolley, including a transport component 1 and a steering component 3. The steering component 3 is used to automatically adjust the moving angle of the beam-carrying tank trolley. The steering component 3 includes a moving mechanism 31 and a steering mechanism 32, and the rotation direction of the moving mechanism 31 and the steering mechanism 32 is adjustable. It is used to realize the free steering operation of the trolley. Multiple moving mechanisms 31 are provided. The moving mechanism 31 includes a fixed block 314. A rotating sleeve 313 is rotatably connected to the outer surface of the fixed block 314. A mounting cover 310 is fixedly connected to the bottom of the rotating sleeve 313. Mounting shafts 311 are rotatably embedded in the inner walls of both sides of the mounting cover 310. Rollers 312 are fixedly connected between the two mounting shafts 311. The steering mechanism 32 includes a guide rail 320, a drive motor 322, and a suspension shaft 323. A drive gear 325 is fixedly connected to the output shaft of the drive motor 322. A driven gear ring 32 is rotatably connected to the outer surface of the suspension shaft 323. 6. An angle sensor 328 is installed at the bottom of the driven gear ring 326. A support cover 324 is fixedly connected to one end of the driven gear ring 326. Moving wheels 327 are rotatably embedded between the inner walls of two sides of the support cover 324. Multiple side balls 315 are movably connected between the outer surface of the fixed block 314 and the inner wall of the rotating sleeve 313. Multiple bottom balls 316 are movably connected between the bottom of the fixed block 314 and the inner bottom surface of the rotating sleeve 313. Both the side balls 315 and the bottom balls 316 are... To reduce the resistance to rotation between the fixed block 314 and the rotating sleeve 313, the outer surface of the driving gear 325 meshes with the outer surface of the driven gear ring 326, and the driven gear ring 326 is composed of ring teeth and extension blocks. The transport assembly 1 includes a load-bearing platform 101, with side fixing plates 102 fixedly connected to both sides of the load-bearing platform 101, and traction plates 103 fixedly connected to the other two sides of the load-bearing platform 101. Two traction rings 104 are welded to the outer surfaces of the two traction plates 103.

[0021] In this embodiment, during use, the steel beam is placed above the bearing turntable 205. By connecting the traction device to the traction ring 104, the entire beam-carrying tank trolley can be moved. Then, when turning, the drive motor 322 is started, causing its output shaft to rotate, thereby driving the drive gear 325 to rotate. Simultaneously, the driven gear ring 326 meshing with it rotates. One end of the driven gear ring 326 is connected to the support cover 324. When the driven gear ring 326 drives the support cover 324 to rotate around the center of the guide rail 320... The limiting support column 329 moves within the inner groove of the guide rail 320, allowing the support cover 324 to adjust its angle along the guide rail 320. Once the angle is adjusted, the beam transport tank trolley can be pulled, and the moving wheels 327 roll on the ground. At the same time, all the rollers 312 contact the ground simultaneously, and the mounting cover 310 automatically follows the rotation angle of the moving wheels 327. This eliminates the need for an additional auxiliary traction trolley with angle adjustment function to assist in traction, solving the problem that the current beam transport trolley has a single direction of travel and cannot adjust its travel angle independently.

[0022] Example 2: Figures 1-8 As shown, the transport component 1 includes a load-bearing platform 101. Side fixing plates 102 are fixedly connected to both sides of the load-bearing platform 101, and traction plates 103 are fixedly connected to both other sides of the load-bearing platform 101. Two traction rings 104 are welded to the outer surfaces of both traction plates 103. Dustproof plates 317 are bolted to the inner walls of both other sides of the mounting cover 310, and the two dustproof plates 317 are symmetrically arranged. Cleaning brushes 318 are fixedly connected to the bottom of both dustproof plates 317, and both cleaning brushes 318 are in contact with the outer surface of the rollers 312. A support cover 324... Mudguards 321 are fixedly connected to the inner walls on both sides of the other side, and the mudguards 321 are used to clean the dust attached to the outside of the moving wheels 327. Two limiting columns 329 are fixedly connected to the top of the support cover 324. The tops of the two limiting columns 329 slide inside the guide rail 320. The top of each fixing block 314 is fixedly connected to the bottom of the load-bearing platform 101. The top of the guide rail 320 is fixedly connected to the bottom of the load-bearing platform 101. The drive motor 322 is set at the bottom of the load-bearing platform 101. The suspension shaft 323 is fixedly installed at the bottom of the load-bearing platform 101.

[0023] In this embodiment, during use, the multiple rollers 312 will accumulate dust as they move on the road. On rainy days, the muddy road surface makes it even easier for mud to stick to the surface of the rollers 312. After the mud dries, the surface of the rollers 312 becomes uneven, causing the beam-carrying tank trolley to bounce when moving. By installing dustproof plates 317 on both sides of the rollers 312 and having the cleaning scrapers 318 installed on their bottom sides closely adhere to the surface of the rollers 312, the mud on the surface of the rollers 312 can be cleaned in time when the rollers 312 rotate, thus preventing the surface of the rollers 312 from becoming uneven. The mudguards 321 on both sides of the moving wheels 327 serve the same purpose, cleaning the surface of the moving wheels 327 in a timely manner and ensuring the stability of the beam-carrying tank trolley during beam transportation.

[0024] Example 3: Figures 1-8 As shown, the transport component 1 includes a load-bearing platform 101. Side fixing plates 102 are fixedly connected to both sides of the load-bearing platform 101, and traction plates 103 are fixedly connected to both sides of the load-bearing platform 101. Two traction rings 104 are welded to the outer surfaces of both traction plates 103. A lifting component 2 is fixedly connected to the top of the load-bearing platform 101. The lifting component 2 includes a support chassis 201. A positioning groove 202 is formed inside the support chassis 201. A positioning block 203 is rotatably connected to the inner wall of the positioning groove 202. A bearing turntable 205 is fixedly connected to the top of the positioning block 203. Multiple rollers are movably connected between the outer surface of the positioning block 203 and the inner wall of the positioning groove 202. The bottom of the load-bearing platform 101 is fixedly connected to two lifting components 4. Each lifting component 4 includes a support base 408. Two connecting rods 407 are fixed between the inner walls of the support base 408. The outer sides of each connecting rod 407 are rotatably connected to a first connecting rod 404. One end of each first connecting rod 404 is rotatably connected to a second connecting rod 405. A connecting buckle 403 is movably connected between one end of each second connecting rod 405. A connecting frame 402 is coupled between one end of each second connecting rod 405. A connecting plate 401 is fixedly connected to the top of the connecting frame 402. An adjusting hydraulic rod 406 is provided between the two connecting ends of the first connecting rods 404 and the two second connecting rods 405.

[0025] In this embodiment, during use, the steel beam is stably placed above the bearing turntable 205. The bearing turntable 205 has a textured surface to prevent the steel beam from slipping during transportation. During movement, the bearing turntable 205 rotates within the support chassis 201, allowing the steel beam to freely rotate to the target orientation. The needle roller 204 reduces the friction between the positioning block 203 and the support chassis 201, making the rotation of the bearing turntable 205 smoother. When the steel beam needs to switch loads, it is lifted by the lifting assembly 4 without the need for external jacks. By activating and retracting the adjusting hydraulic rod 406, the two first connecting rods 4 can be... 04 and the two second connecting rods 405 rotate, and the connection between the two first connecting rods 404 is meshed. At this time, the included angle between the two first connecting rods 404 decreases, and the principle of the two second connecting rods 405 is the same. This allows the support seat 408 to touch the ground and then lift the load-bearing platform 101 and the steel beam it supports. The two adjusting hydraulic rods 406 are started separately for adjustment. The height of the two lifting components 4 is adjusted according to the stability of the load-bearing platform 101. When the road surface is uneven, the height of the two lifting components 4 can be adjusted separately, thereby avoiding the tilting of the load-bearing platform 101 during lifting. This realizes the integrated operation of walking, turning and lifting, and will not cause uneven force on the steel beam or deviation in displacement accuracy.

[0026] The device's operation and working principle are as follows: During use, the steel beam is stably placed above the bearing turntable 205. The turntable 205 has a textured surface to prevent slippage during transport. During movement, the turntable 205 rotates within the support chassis 201, allowing the steel beam to freely rotate to the target orientation. The needle rollers 204 reduce friction between the positioning block 203 and the support chassis 201, resulting in smoother rotation of the turntable 205. When the load needs to be changed, the steel beam is lifted using the lifting assembly 4, eliminating the need for external jacks. The hydraulic rod 406 is activated and retracted to allow for... The two first connecting rods 404 and the two second connecting rods 405 are rotated. The connection between the two first connecting rods 404 is meshed, and the included angle between the two first connecting rods 404 decreases. The two second connecting rods 405 operate on the same principle, allowing the support base 408 to touch the ground and lift the load-bearing platform 101 and the steel beam it supports. The two adjusting hydraulic rods 406 are activated separately for adjustment. The height of the two lifting components 4 is adjusted according to the stability of the load-bearing platform 101. When the road surface is uneven, the height of the two lifting components 4 can be adjusted separately to place the steel beam above the load-bearing turntable 205. By connecting the traction equipment to the traction ring 104, the entire beam-carrying tank trolley can be moved. Then, during the turn, the drive motor 322 is activated, causing its output shaft to rotate, which in turn drives the drive gear 325 to rotate. Simultaneously, the driven gear ring 326, which meshes with it, rotates. One end of the driven gear ring 326 is connected to the support cover 324. When the driven gear ring 326 drives the support cover 324 to rotate around the center of the guide rail 320, the limiting support column 329 moves within the inner groove of the guide rail 320, allowing the support cover 324 to adjust its angle along the guide rail 320. After the angle is adjusted, the beam-carrying tank trolley can be pulled, and the moving wheels 327 roll on the ground. Simultaneously, all the rollers 312 contact the ground, and the mounting cover 310 automatically follows the rotation angle of the moving wheels 327. An auxiliary traction trolley with angle adjustment function needs to be configured to assist in traction. When multiple rollers 312 move on the road, they will get dusty. On rainy days, the muddy road surface makes it even easier for mud to stick to the surface of the rollers 312. After the mud dries, the surface of the rollers 312 is not smooth, which will cause the beam transport tank trolley to bump when moving. By installing dustproof plates 317 on both sides of the rollers 312 and making the cleaning scrapers 318 installed on the bottom side close to the surface of the rollers 312, the mud on the surface of the rollers 312 can be cleaned in time when the rollers 312 rotate, thereby avoiding the unevenness of the surface of the rollers 312. The mudguards 321 on both sides of the moving wheels 327 have the same effect and can clean the surface of the moving wheels 327 in time.

[0027] The wiring diagrams of the drive motor 322, angle sensor 328, and adjusting hydraulic rod 406 in this invention are common knowledge in the field, and their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the drive motor 322, angle sensor 328, and adjusting hydraulic rod 406 will not be explained in detail.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hydraulically jacking, freely steerable beam-transporting tank trolley, comprising a transport assembly (1) and a steering assembly (3), wherein the steering assembly (3) is used to automatically adjust the movement angle of the beam-transporting tank trolley, characterized in that: The steering assembly (3) includes a moving mechanism (31) and a turning mechanism (32), and the rotation direction of the moving mechanism (31) and the turning mechanism (32) is adjustable. It is used to realize the free steering operation of the trolley. Multiple moving mechanisms (31) are provided. The moving mechanism (31) includes a fixed block (314), a rotating sleeve (313) is rotatably connected to the outer surface of the fixed block (314), a mounting cover (310) is fixedly connected to the bottom of the rotating sleeve (313), and mounting shafts (311) are rotatably embedded in the inner walls of both sides of the mounting cover (310), and rollers (312) are fixedly connected between the two mounting shafts (311). The steering mechanism (32) includes a guide rail (320), a drive motor (322) and a suspension shaft (323). The output shaft of the drive motor (322) is fixedly connected to a drive gear (325). A driven gear ring (326) is rotatably connected to the outer surface of the suspension shaft (323). An angle sensor (328) is provided at the bottom of the driven gear ring (326). A support cover (324) is fixedly connected to one end of the driven gear ring (326). A moving wheel (327) is rotatably embedded between the inner walls of the support cover (324) on both sides.

2. The hydraulically lifted, freely steerable beam-transporting tank trolley according to claim 1, characterized in that: Multiple side balls (315) are movably connected between the outer surface of the fixed block (314) and the inner wall of the rotating sleeve (313), and multiple bottom balls (316) are movably connected between the bottom of the fixed block (314) and the inner bottom surface of the rotating sleeve (313). Both the side balls (315) and the bottom balls (316) are used to reduce the resistance to rotation between the fixed block (314) and the rotating sleeve (313).

3. The hydraulically lifted, freely steerable beam-transporting tank trolley according to claim 2, characterized in that: Dustproof plates (317) are bolted to the inner walls of the other two sides of the mounting cover (310), and the two dustproof plates (317) are arranged symmetrically. Cleaning brushes (318) are fixedly connected to the bottom of the two dustproof plates (317), and the two cleaning brushes (318) are in contact with the outer surface of the roller (312).

4. The hydraulically lifted, freely steerable beam-transporting tank trolley according to claim 3, characterized in that: The outer surface of the driving gear (325) meshes with the outer surface of the driven gear ring (326), and the driven gear ring (326) is composed of ring teeth and extension blocks.

5. The hydraulically lifted, freely steerable beam-transporting tank trolley according to claim 4, characterized in that: Mudguards (321) are fixedly connected to the inner walls of the other two sides of the support cover (324), and the mudguards (321) are used to clean the dust attached to the outside of the moving wheel (327). Two limiting columns (329) are fixedly connected to the top of the support cover (324), and the tops of the two limiting columns (329) slide inside the guide rail (320).

6. The hydraulically lifted, freely steerable beam-transporting tank trolley according to claim 5, characterized in that: The transport component (1) includes a load-bearing platform (101), on both sides of the load-bearing platform (101) are fixedly connected to side fixing plates (102), and on the other two sides of the load-bearing platform (101) are fixedly connected to traction plates (103). Two traction rings (104) are welded to the outer surface of the two traction plates (103).

7. The hydraulically lifted, freely steerable beam-transporting tank trolley according to claim 6, characterized in that: The top of each of the fixed blocks (314) is fixedly connected to the bottom of the load-bearing platform (101), the top of the guide rail (320) is fixedly connected to the bottom of the load-bearing platform (101), the drive motor (322) is located at the bottom of the load-bearing platform (101), and the suspension shaft (323) is fixedly installed at the bottom of the load-bearing platform (101).

8. The hydraulically lifted, freely steerable beam-transporting tank trolley according to claim 7, characterized in that: The top of the load-bearing platform (101) is fixedly connected to a lifting assembly (2), which includes a support chassis (201). The support chassis (201) has a positioning groove (202) inside. The inner wall of the positioning groove (202) is rotatably connected to a positioning block (203). The top of the positioning block (203) is fixedly connected to a bearing turntable (205). Multiple needle rollers (204) are movably connected between the outer surface of the positioning block (203) and the inner wall of the positioning groove (202).

9. The hydraulically lifted, freely steerable beam-transporting tank trolley according to claim 8, characterized in that: The bottom of the load-bearing platform (101) is fixedly connected to two lifting components (4). The lifting components (4) include a support base (408). Two connecting rods (407) are fixed between the inner walls of the support base (408). The two connecting rods (407) are rotatably connected to the outside of each of the two connecting rods (407). One end of each of the two first connecting rods (404) is rotatably connected to a second connecting rod (405). A connecting buckle (403) is movably connected between one end of each of the two second connecting rods (405). A connecting frame (402) is coupled between one end of each of the two second connecting rods (405). A connecting plate (401) is fixedly connected to the top of the connecting frame (402). An adjusting hydraulic rod (406) is provided between the two connecting ends of the two first connecting rods (404) and the two second connecting rods (405).

10. A method for using a hydraulically lifted, freely steerable beam-carrying tank trolley, characterized in that, The hydraulically lifted, freely steerable beam-carrying tank trolley of claim 9 comprises the following steps: S1. Place the steel beam stably above the load-bearing turntable (205), lift it by the lifting assembly (4), start the adjusting hydraulic rod (406) to retract it, so that the two first connecting rods (404) and the two second connecting rods (405) can rotate. Start the two adjusting hydraulic rods (406) separately to adjust the height of the two lifting assemblies (4) according to the stability of the load-bearing platform (101). S2. By connecting the traction device with the traction ring (104), the entire beam transport tank trolley can be moved. When turning, the drive motor (322) is started, and its output shaft drives the drive gear (325) and the driven gear ring (326) to rotate, thereby driving the support cover (324) to adjust the angle of the guide rail (320) around the center of the circle. S3. The moving wheel (327) rolls on the ground. At the same time, all the rollers (312) contact the ground. The mounting cover (310) will automatically follow the rotation angle of the moving wheel (327) to complete the integrated movement. S4. By installing dustproof plates (317) on both sides of the roller (312), the cleaning scraper (318) installed on its bottom side is in close contact with the surface of the roller (312) to clean the dirt on its surface in time. The mudguards (321) on both sides of the moving wheel (327) play the same role and can clean the surface of the moving wheel (327) in time.

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