A crane hoist for steel structure

Abstract

The present application relates to the technical field of the trolley hoisting structure, improves the problem of insufficient automation in the prior art and the need for manual intervention, and discloses a crane hoist for steel structure, which includes a slide rail beam, a trolley frame and an operating frame; the slide rail beam is supported from the ground by a bracket; the trolley frame is slidably connected to the slide rail beam, and both ends of the trolley frame are rotatably connected to a number of moving wheels, and the trolley frame is provided with a first driving member for driving the moving wheels to rotate; the operating frame is arranged below the trolley frame; the operating frame and the trolley frame are connected by a lifting assembly; the operating frame is provided with at least one positioning claw and at least two retaining claws; the positioning claw is located between the two retaining claws, and the operating frame is provided with a control member for driving the positioning claw to approach or move away from the operating frame. The present application can reduce manual intervention in the hoisting process and improve hoisting efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of crane hoisting structures, and in particular to a crane hoisting device for steel structures. Background Art

[0002] As a heavy lifting equipment, the overhead crane hoisting structure is mainly composed of key parts such as steel structure frame, lifting mechanism, traveling mechanism and control system. Its steel structure frame is usually made of steel, including main beam, end beam, outriggers, etc., which constitute the main support of the entire lifting structure. The lifting mechanism realizes the lifting and lowering operation of the cargo through components such as wire ropes and pulleys, and is the core of the lifting function. The traveling mechanism is installed on the track and consists of a drive device and traveling wheels, so that the overhead crane can move freely in the horizontal direction to reach the working position.

[0003] However, the hoisting process requires manual winding of the cables around the two ends of the steel structure and connecting the cables using hoisting hooks, and the hooks need to be manually supported for docking during the connection process. This method has a low degree of automation and low operating efficiency. Summary of the invention

[0004] In order to improve the defects of the prior art that the automation is insufficient and manual intervention is required, the present application provides a crane hoist for steel structures.

[0005] The following technical solutions are adopted:

[0006] A crane hoist for a steel structure comprises a slide rail beam, a carriage frame and an operating frame; the slide rail beam is supported from the ground by a bracket; the carriage frame is slidably connected to the slide rail beam, and both ends of the carriage frame are rotatably connected to a plurality of moving wheels, and the carriage frame is provided with a first driving member that drives the moving wheels to rotate; the operating frame is arranged below the carriage frame; the operating frame and the carriage frame are connected by a lifting assembly; at least one positioning claw and at least two retaining claws are provided on the operating frame; the positioning claw is located between the two retaining claws, and the operating frame is provided with a control member that drives the positioning claw to approach or move away from the operating frame.

[0007] By adopting the above technical solution, the slide rail beam is firmly supported from the ground, providing a stable support foundation for the entire system. The carriage frame slides on the slide rail beam, and the first driving member drives the moving wheel to rotate, thereby realizing free movement in the horizontal direction. The operating frame is connected to the carriage frame through a lifting assembly to realize lifting in the vertical direction, which is convenient for operating steel structures of different heights. The positioning claw is used to pre-grasp the middle position of the steel structure and lift it slightly. After reaching the appropriate position, the holding claw can be used to grip the two ends of the steel structure to stably transport the steel structure.

[0008] Optionally, a guide rail is provided along the length of the upper end surface of the slide rail beam, the longitudinal section of the moving wheel is H-shaped, and the concave shape in the middle of the moving wheel corresponds to the cross-sectional shape of the guide rail.

[0009] By adopting the above technical solution, the moving wheel adopts an H-shaped longitudinal section design, which matches the cross-sectional shape of the guide rail on the upper end face of the slide rail beam. This design enhances the contact area between the moving wheel and the guide rail, improves the sliding stability and load-bearing capacity, reduces the shaking and noise during the movement, ensures the stability and accuracy of the driving, and prolongs the service life of the equipment.

[0010] Optionally, the lifting assembly includes a plurality of balance bar groups, each of which includes a plurality of balance bar groups connected end to end in sequence, the balance bar groups are rotationally connected to each other, and the balance bar located at the ends are rotationally connected to the operating frame and the vehicle frame respectively.

[0011] By adopting the above technical solution, each set of balancing rods are connected by rotation. This design makes the lifting process more stable, effectively disperses the load, and improves the overall stability of the system. It ensures the stability and safety of the operating frame during the lifting process and reduces the failure rate.

[0012] Optionally, the operating frame includes a connecting portion and a functional portion, the connecting portion is connected to the lifting assembly, the retaining claw and the positioning claw are connected to the lower end of the functional portion; the connecting portion and the functional portion are connected via a rotating assembly.

[0013] By adopting the above technical solution, the operating frame is divided into a connecting part and a functional part, which are connected by a rotating assembly, so that the functional part can rotate freely within a certain range. This design enables the spreader to adapt to steel structures at different angles, improves the flexibility of operation, enhances the applicability of the spreader, and reduces the difficulty of operation caused by angle restrictions.

[0014] Optionally, the rotating assembly includes a second driving member and a rotating sleeve; the rotating sleeve is connected to the functional part, and a rotating groove is provided on the lower surface of the connecting part; one end of the rotating sleeve is inserted into the rotating groove; the second driving member is arranged on the connecting part, and the output end of the second driving member passes through the outer wall of the connecting part to the rotating sleeve, and a rotating gear is coaxially arranged at the output end of the second driving member, and a first tooth is circumferentially provided on the inner wall of the rotating sleeve, and the rotating gear is meshed with the first tooth.

[0015] By adopting the above technical solution, the rotating assembly realizes precise control of the rotation of the functional part through the precise cooperation of the second driving member, the rotating sleeve and the rotating gear. The outer edge of the rotating sleeve cooperates with the groove on the inner wall of the rotating groove, further enhancing the stability and precision of the rotation.

[0016] Optionally, an outer edge is circumferentially provided at the end of the rotating sleeve, and a groove for the outer edge to rotate is formed on the inner wall of the rotating groove.

[0017] Optionally, the rotating gear and the rotating sleeve are eccentrically arranged, and the diameter of the rotating gear is smaller than the inner diameter of the rotating sleeve.

[0018] Optionally, the positioning claw includes a positioning block, a plurality of positioning fingers and a plurality of third driving members; the positioning fingers are slidably connected to the positioning block; the positioning fingers are distributed along both sides of the midline of the length of the operating frame, and are controlled by the third driving member to approach or move away from each other; and a plurality of slots are circumferentially spaced apart on the outer wall of the positioning fingers.

[0019] By adopting the above technical solution, the positioning claw is composed of a positioning block, a positioning finger and a third driving member. The positioning finger can slide on the positioning block and is controlled by the third driving member, thereby realizing multi-point precise positioning of the steel structure. The slot design on the outer wall of the positioning finger enhances the connection stability with the steel structure. The fixing effect of the sling on the steel structure is improved, ensuring safety and stability during operation.

[0020] Optionally, the retaining claw includes a support rod, at least two retaining hooks and a connecting rod corresponding to the number of the retaining hooks; the support rod is slidably connected with a sliding sleeve; the retaining hooks are curved arc structures, and the retaining hooks are relatively arranged; one end of the connecting rod rotates to correspond to the retaining hooks, and the other end rotates to connect to the sliding sleeve; the functional part is provided with a fourth driving member for driving the sliding sleeve to move.

[0021] By adopting the above technical solution, the holding claw adopts a combination design of a support rod, a holding hook and a connecting rod, and the fourth driving member drives the sliding sleeve to move, thereby driving the opening and closing of the holding hook, so as to achieve effective clamping of steel structures of different shapes and sizes. The adaptability of the sling to different types of steel structures is enhanced, and the flexibility and efficiency of the operation are improved.

[0022] Optionally, it also includes an adjustment component, which includes an adjustment bar and a fifth drive member; a slide groove and a connecting groove are opened on the functional part, the adjustment bar is slidably connected in the slide groove, the support rod passes through the connecting groove and is connected to the bottom of the adjustment bar, and the fifth drive member is engaged with the second teeth on the adjustment bar through the adjustment gear.

[0023] By adopting the above technical solution, the adjustment component can achieve fine adjustment of the support rod position through the cooperation of the adjustment bar and the fifth driving member, thereby further improving the clamping accuracy and stability of the holding claw, simplifying the adjustment process, improving the working efficiency, and ensuring the consistency of the clamping effect.

[0024] In summary, the present application includes at least one of the following beneficial effects:

[0025] 1. The slide rail beam is firmly supported from the ground, providing a stable support foundation for the entire system. The vehicle frame slides on the slide rail beam to achieve free horizontal movement. The operating frame is connected to the vehicle frame through a lifting component to achieve vertical lifting, which is convenient for operating steel structures at different heights;

[0026] 2. The positioning claws are used to pre-grasp the middle of the steel structure and lift it slightly. After reaching the appropriate position, the retaining claws can be used to grip the two ends of the steel structure to stably transport the steel structure;

[0027] 3. Adjust the position of the retaining claws to accommodate more types of special-shaped steel structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0029] Figure 2 is a schematic diagram of the side structure of this embodiment;

[0030] Figure 3 is a schematic diagram of a side view of the structure of the present embodiment;

[0031] Figure 4 It is a schematic diagram of the cross-sectional structure of the operating frame;

[0032] Figure 5 It is a schematic diagram of the positioning claw structure;

[0033] Figure 6 is a schematic diagram of the structure of the retaining claw;

[0034] Figure 7 This is a schematic diagram of the coordination between the adjustment bar and the adjustment gear.

[0035] Description of reference numerals: 1, slide rail beam; 11, bracket; 12, guide rail; 2, vehicle frame; 21, moving wheel; 22, first driving member; 3, operating frame; 31, connecting part; 311, rotating groove; 312, groove; 32, functional part; 321, slide groove; 322, connecting groove; 4, lifting assembly; 41, electric hoist; 42, balance bar group; 421, balance bar; 5, rotating assembly; 51, second driving member; 511, rotating gear; 5 2. Rotating sleeve; 521. Outer edge; 522. First tooth; 6. Positioning claw; 61. Positioning block; 62. Positioning finger; 621. Slot; 63. Third driving member; 64. Sliding block; 65. Control member; 7. Retaining claw; 71. Support rod; 72. Sliding sleeve; 73. Retaining hook; 74. Connecting rod; 75. Fourth driving member; 8. Adjusting assembly; 81. Adjusting bar; 811. Second tooth; 82. Fifth driving member; 821. Adjusting gear. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1 To Attachment Figure 7 This application is described in further detail.

[0037] Reference Figures 1 to 3 In the prior art, the hoisting of steel structures is generally performed by manually winding cables around the two ends of the steel structure, and connecting the cables using a hoisting hook. During the connection process, the hook needs to be manually supported for docking. This method has a low degree of automation and low operating efficiency. In addition, during the operation, there are safety hazards due to the elasticity of the cable and the swing of the hook. Therefore, in order to reduce manual intervention during the hoisting process and improve the hoisting efficiency. The embodiment of the present application discloses a crane hoist for a steel structure, including a slide rail beam 1, a vehicle frame 2 and an operating frame 3. The slide rail beam 1 is erected in the workplace parallel to the ground through a bracket 11. The vehicle frame 2 is slidably connected to the slide rail beam 1. Both ends of the vehicle frame 2 are rotatably connected to a plurality of moving wheels 21, and the vehicle frame 2 is provided with a first driving member 22 for driving the moving wheels 21 to rotate. The operating frame 3 is arranged below the vehicle frame 2. The operating frame 3 is connected to the vehicle frame 2 through a lifting assembly 4, so that the operating frame 3 can approach or move away from the vehicle frame 2 along the direction of gravity. The operating frame 3 is provided with at least one positioning claw 6 and at least two holding claws 7, and the positioning claw 6 is located between the two holding claws 7. The operating frame 3 is provided with a control member 65 for controlling the positioning claw 6 to approach or move away from the operating frame 3. The positioning claw 6 is used to pre-grasp the middle position of the steel structure and perform a small lift. After reaching the appropriate position, the holding claw 7 can wrap around and grasp the two ends of the steel structure to stably transport the steel structure.

[0038] Reference Figure 1 and Figure 2 , further, at least two slide rail beams 1 are provided, and the slide rail beams 1 are parallel to each other. The vehicle frame 2 is mounted on the slide rail beam 1, and at least two moving wheels 21 are provided at each end of the vehicle frame 2. The first driving member 22 is a motor, and the output end of the first driving member 22 is connected to the moving wheel 21, thereby driving the moving wheel 21 to rotate. The longitudinal section of the moving wheel 21 is H-shaped. A guide rail 12 is provided on the slide rail beam 1. The concave shape in the middle of the moving wheel 21 corresponds to the cross-sectional shape of the guide rail 12. The lifting assembly 4 includes a plurality of groups of electric hoists 41, and the electric hoist 41 generally uses an electric hoist. This method belongs to the prior art and will not be repeated here. The main body of the electric hoist 41 is connected to the lower surface of the middle position of the vehicle frame 2, and the rope of the electric hoist 41 extends downward to bypass the pulley provided on the upper surface of the operating frame 3. The electric hoist 41 reels the rope to drive the operating frame 3 to move toward the direction close to the vehicle frame 2, so that the operating frame 3 is lifted. On the contrary, the electric hoist 41 releases the rope, and the operating frame 3 moves downward under the action of gravity.

[0039] Reference Figure 1 and Figure 2Further, the lifting assembly 4 also includes a plurality of balancing rod groups 42, each balancing rod group 42 includes a plurality of balancing rods 421 connected end to end in sequence, the plurality of balancing rods 421 are rotatably connected to each other, and the two balancing rods 421 located at both ends are rotatably connected to the upper surface of the operating frame 3 and the lower surface of the vehicle frame 2. The plurality of balancing rods 421 are arranged at an angle, and the angle is preferably an obtuse angle. At least two balancing rod groups 42 are arranged between the operating frame 3 and the vehicle frame 2. The balancing rods 421 enable the operating frame 3 to fold and bend when moving, so that the operating frame 3 can move stably.

[0040] Reference Figure 3 and Figure 4 Further, the operating frame 3 includes a connecting portion 31 and a functional portion 32, wherein the connecting portion 31 is located above the functional portion 32, and the connecting portion 31 is connected to the lifting assembly 4. The connecting portion 31 and the functional portion 32 are connected via a rotating assembly 5. The rotating assembly 5 includes a second driving member 51 and a rotating sleeve 52. The rotating sleeve 52 is arranged on the upper surface in the middle of the functional portion 32, and a rotating groove 311 is provided in the middle of the lower surface of the connecting portion 31. The rotating groove 311 passes through the connecting portion 31 downward, and the rotating groove 311 corresponds to the shape of the rotating sleeve 52. One end of the rotating sleeve 52 penetrates into the rotating groove 311, and the other end vertically downwardly connects to the functional portion 32. An outer edge 521 is circumferentially arranged at the end of the rotating sleeve 52, and a groove 312 for the outer edge 521 to rotate is provided on the inner wall of the rotating groove 311, and the groove 312 is annular. The second driving member 51 is arranged on the connecting portion 31. The second driving member 51 is a motor. The main body of the second driving member 51 is arranged on the connecting portion 31. The second driving member 51 is arranged vertically downward. The output end of the second driving member 51 passes through the outer wall of the connecting portion 31 to the rotating groove 311, and penetrates into the rotating sleeve 52. The output end of the second driving member 51 is coaxially provided with a rotating gear 511. The inner wall of the rotating sleeve 52 is circumferentially provided with a first tooth 522, and the rotating gear 511 is meshed with the tooth. The rotating gear 511 is eccentrically arranged with the rotating sleeve 52, and the diameter of the rotating gear 511 is smaller than the inner diameter of the rotating sleeve 52. The connecting portion 31 and the functional portion 32 can rotate relative to each other, so that the steel structure can be rotated to a suitable angle for movement.

[0041] Reference Figure 5, further, the positioning claw 6 and the holding claw 7 are both arranged on the lower surface of the functional part 32, and the positioning claw 6 and the holding claw 7 are both arranged downward. The positioning claw 6 includes a positioning block 61, a plurality of positioning fingers 62 and a plurality of third driving members 63. One end of the positioning block 61 is connected to the operating frame 3, and the other end extends downward and is connected to a plurality of positioning fingers 62. A plurality of third driving members 63 are arranged on the positioning block 61 to control the plurality of positioning fingers 62 to approach or move away from each other. A plurality of sliders 64 are slidably connected to the positioning block 61, and the plurality of sliders 64 are arranged on both sides of the center line along the length direction of the operating frame 3. A plurality of positioning fingers 62 are connected to the corresponding sliders 64 in an array, and the positioning fingers 62 extend vertically downward. A plurality of sliders 64 move horizontally, and the third driving member 63 is a telescopic cylinder or a telescopic hydraulic cylinder. The third driving member 63 shell is connected to the positioning block 61, and the output end of the third driving member 63 is connected to the corresponding slider 64. The positioning finger 62 is cylindrical, and a plurality of slots 621 are provided at intervals on the outer wall of the positioning finger 62. Several positioning fingers 62 are evenly distributed in two rows along the length center line of the operating frame 3. The outer wall of the positioning fingers 62 is roughened. A control member 65 is provided in the operating frame 3. The control member 65 is a telescopic cylinder or hydraulic cylinder vertically downwardly arranged, and the output end of the control member 65 is connected to the positioning block 61. The positioning claw 6 can be appropriately clamped in the middle section of the steel structure, and the sliding is driven by the telescopic movement of the third driving member 63, so that several positioning fingers 62 are moved closer or farther from each other, so that the positioning fingers 62 move simultaneously from both sides of the steel structure, the positioning fingers 62 abut against the outer wall of the steel structure, the outer edge 521 of the steel structure enters the slot 621, or the outer wall of the positioning finger 62 is pressed against the steel structure. In this way, the positioning claw 6 clamps the steel structure, and the control member 65 is used to slightly lift the steel structure until the ground clearance of the steel structure is sufficient to keep the claw 7 in position, and then the two ends of the steel structure are clamped by the holding claw 7, so as to stably transport the steel structure.

[0042] Reference Figure 6 Further, the retaining claw 7 includes a support rod 71, at least two retaining hooks 73 and a connecting rod 74 corresponding to the number of retaining hooks 73. One end of the support rod 71 is connected to the functional part 32, and the other end extends in a direction away from the functional part 32. The retaining hook 73 is rotatably connected to the end of the support rod 71 away from the functional part 32. One end of the retaining hook 73 is rotatably connected to the support rod 71, and the other end extends in a direction away from the support rod 71. The retaining hook 73 is a curved arc structure, and the two retaining hooks 73 are arranged oppositely, and the ends of the retaining hooks 73 are abutted to form a ring. The support rod 71 is slidably connected with a sliding sleeve 72, and one end of the connecting rod 74 is rotatably connected to the outer side of the retaining hook 73, and the other end is rotatably connected to the sliding sleeve 72. The retaining hook 73 is pulled and rotated by the connecting rod 74 as the sliding sleeve 72 moves. A fourth driving member 75 for driving the sliding sleeve 72 to move is provided on the support rod 71. One end of the fourth driving member 75 is connected to the functional part 32 and is arranged along the length direction of the support rod 71, and the output end of the fourth driving member 75 is connected to the sliding sleeve 72. The fourth driving member 75 is a telescopic air cylinder or a telescopic hydraulic cylinder.

[0043] Reference Figure 4 and Figure 7 , in order to further adapt to various shapes of steel structures, especially long strip-shaped special-shaped steel structures. In this embodiment, an adjustment component 8 for adjusting the position of the retaining claw 7 is also provided, and the number of the adjustment components 8 corresponds to the number of the retaining claws 7. The adjustment component 8 includes an adjustment bar 81 and a fifth driving member 82. A plurality of slide grooves 321 corresponding to the number of the retaining claws 7 are provided on the functional part 32 perpendicular to the length direction of the functional part 32, and the two ends of the slide groove 321 pass through the outer wall of the functional part 32. The adjustment bar 81 is slidably connected in the slide groove 321, and both ends of the adjustment bar 81 can slide out of the extension surface of the outer wall of the functional part 32. The bottom of the slide groove 321 is connected with a connecting groove 322, which is provided along the length direction of the slide groove 321, and the connecting groove 322 passes downward through the bottom of the functional part 32, and the support rod 71 passes through the connecting groove 322 and is connected to the bottom of the adjustment bar 81, and the support rod 71 is slidably connected in the connecting groove 322. The fifth driving member 82 is disposed in the functional part 32, and the fifth driving member 82 is disposed vertically downward. The output end of the fifth driving member 82 is connected to an adjusting gear 821, and the adjusting gear 821 is coaxially connected to the output end of the fifth driving member 82. The outer wall of the adjusting bar 81 is provided with a second tooth 811, and the adjusting tooth is meshed with the second gear. The fifth driving member 82 is a motor. The fifth driving member 82 drives the adjusting gear 821 to rotate, thereby driving the adjusting bar 81 meshed therewith to move in a direction perpendicular to the length of the functional part 32. Thus, the position of the retaining claw 7 is adjusted to adapt to more types of special-shaped steel structures.

[0044] The implementation principle of a crane hoist for steel structure in the embodiment of the present application is as follows:

[0045] The positioning claw 6 is used to pre-grasp the middle position of the steel structure and lift it slightly. After reaching the appropriate position, the retaining claw 7 can wrap around and grip the two ends of the steel structure to stably transport the steel structure. At the same time, by adjusting the position of the retaining claw 7, it can adapt to more types of special-shaped steel structures. The slide rail beam 1 is firmly supported from the ground, providing a stable support foundation for the entire system. The vehicle frame 2 slides on the slide rail beam 1 to achieve free movement in the horizontal direction. The operating frame 3 is connected to the vehicle frame 2 through the lifting assembly 4 to achieve lifting in the vertical direction, which is convenient for operating steel structures of different heights.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A crane hoist for steel structure, characterized in that: The invention comprises a slide rail beam (1), a vehicle frame (2) and an operating frame (3); the slide rail beam (1) is supported from the ground by a bracket (11); the vehicle frame (2) is slidably connected to the slide rail beam (1); both ends of the vehicle frame (2) are rotatably connected to a plurality of moving wheels (21); the vehicle frame (2) is provided with a first driving member (22) for driving the moving wheels (21) to rotate; the operating frame (3) is arranged below the vehicle frame (2); the operating frame (3) and the vehicle frame (2) are connected via a lifting assembly (4); at least one positioning claw (6) and at least two retaining claws (7) are provided on the operating frame (3); the positioning claws (6) are located between the two The operating frame (3) is provided with a control member (65) for driving the positioning claw (6) to move closer to or away from the operating frame (3); the operating frame (3) comprises a connecting portion (31) and a functional portion (32); the connecting portion (31) is connected to the lifting assembly (4); the holding claw (7) and the positioning claw (6) are connected to the lower end of the functional portion (32); the connecting portion (31) and the functional portion (32) are connected via a rotating assembly (5); the rotating assembly (5) comprises a second driving member (51) and a rotating sleeve (52); the rotating sleeve (52) is connected to the functional portion (32); the lower end of the connecting portion (31) A rotating groove (311) is provided on the surface of the rotating sleeve (52); one end of the rotating sleeve (52) penetrates into the rotating groove (311); the second driving member (51) is arranged on the connecting portion (31); the output end of the second driving member (51) penetrates through the outer wall of the connecting portion (31) to the rotating sleeve (52); a rotating gear (511) is coaxially arranged on the output end of the second driving member (51); a first tooth (522) is circumferentially provided on the inner wall of the rotating sleeve (52); the rotating gear (511) meshes with the first tooth (522); an outer edge (521) is circumferentially provided on the end of the rotating sleeve (52); a tooth (522) is provided on the inner wall of the rotating groove (311) for the rotating gear (511) to engage with the first tooth (522); The outer edge (521) of the operating frame (3) is provided with a groove (312) for rotating; the rotating gear (511) is eccentrically arranged with the rotating sleeve (52), and the diameter of the rotating gear (511) is smaller than the inner diameter of the rotating sleeve (52); the positioning claw (6) comprises a positioning block (61), a plurality of positioning fingers (62) and a plurality of third driving members (63); the positioning fingers (62) are slidably connected to the positioning block (61); the positioning fingers (62) are distributed along both sides of the length midline of the operating frame (3), and are controlled by the third driving member (63) to approach or move away from each other; the positioning fingers (62) are cylindrical, and the outer wall of the positioning fingers (62) is provided with a plurality of slots (621) spaced apart in the circumferential direction.

2. The crane hoist for steel structure according to claim 1, characterized in that: The upper end surface of the slide rail beam (1) is provided with a guide rail (12) along its length, the longitudinal section of the moving wheel (21) is H-shaped, and the concave shape in the middle of the moving wheel (21) corresponds to the cross-sectional shape of the guide rail (12).

3. The crane hoist for steel structure according to claim 1, characterized in that: The lifting assembly (4) comprises a plurality of balancing rod groups (42), each of the balancing rod groups (42) comprising a plurality of balancing rods (421) connected end to end in sequence, the balancing rods (421) being rotatably connected to each other, and the balancing rods (421) located at the ends are rotatably connected to the operating frame (3) and the vehicle frame (2), respectively.

4. The crane hoist for steel structure according to claim 1, characterized in that: The retaining claw (7) comprises a support rod (71), at least two retaining hooks (73) and connecting rods (74) corresponding in number to the retaining hooks (73); the support rod (71) is slidably connected to a sliding sleeve (72); the retaining hooks (73) are of a curved arc structure, and the retaining hooks (73) are arranged opposite to each other; one end of the connecting rod (74) rotates to correspond to the retaining hooks (73), and the other end rotates to connect to the sliding sleeve (72); a fourth driving member (75) for driving the sliding sleeve (72) to move is arranged on the support rod (71).

5. The crane hoist for steel structure according to claim 4, characterized in that: The invention also comprises an adjustment component (8), wherein the adjustment component (8) comprises an adjustment bar (81) and a fifth driving member (82); a slide groove (321) and a connecting groove (322) are provided on the functional portion (32); the adjustment bar (81) is slidably connected to the slide groove (321); the support rod (71) passes through the connecting groove (322) and is connected to the bottom of the adjustment bar (81); and the fifth driving member (82) is meshed with a second tooth (811) on the adjustment bar (81) via an adjustment gear (821).

Images