Steel bracket lifting appliance

Abstract

The invention discloses a steel bracket lifting appliance. The steel bracket lifting appliance comprises an upper cross beam, a clamping mechanism for clamping a steel coil bracket and a tilting mechanism for switching the clamping mechanism from a horizontal state to an inclined state, the two clamping mechanisms are arranged at the two ends of the upper cross beam respectively, and the upper cross beam is connected with the clamping mechanisms through tilting mechanisms. The tilting mechanisms arranged at the two ends of the upper cross beam are connected with the clamping mechanisms, so that the tilting mechanisms drive the clamping mechanisms to be converted into an inclined state from a horizontal state, and then the steel coil bracket clamped by the clamping mechanisms tilts along with the clamping mechanisms, so that the steel coil bracket obliquely enters a carriage, the distance between the steel coil bracket and the carriage in the horizontal direction is increased, and the steel coil bracket can be clamped by the clamping mechanisms. Therefore, when the steel coil bracket is hoisted, the steel coil bracket can be placed in the carriage more easily, and the situation that the opening in the top of the carriage is clamped or collided can be effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of slings, in particular to a steel bracket sling. Background Art

[0002] The majority of steel coils produced by steel mills are transported by rail. Due to process requirements, the coils must be shipped horizontally. To ensure stability and safety during transportation, special coil racks must be placed in the train car before loading.

[0003] The loading and unloading of coil racks primarily relies on the rack spreader. However, the actual lifting process presents the following challenges: the width of the rack is almost identical to the width of the train car, making precise placement difficult. The racks often become stuck or collide with the opening at the top of the car. While an unmanned crane above the rack spreader can adjust the position, its limited accuracy makes it ineffective. Manual alignment is both dangerous and inefficient. Summary of the Invention

[0004] The present invention provides a steel bracket hanger to overcome the above technical problems.

[0005] In order to achieve the above object, the technical solution of the present invention is:

[0006] A steel bracket hanger comprises: an upper crossbeam, a clamping mechanism for clamping a steel coil bracket, and a tilting mechanism for switching the clamping mechanism from a horizontal state to an inclined state;

[0007] The two clamping mechanisms are respectively arranged at the two ends of the upper crossbeam, and the upper crossbeam and the clamping mechanisms are connected via a tilting mechanism.

[0008] Furthermore, the clamping mechanism includes a box;

[0009] The tilting mechanism includes a tilting support, a first connecting rod, a second connecting rod and a tilting oil cylinder, and the tilting support is fixed on the upper beam;

[0010] The first connecting rod, the second connecting rod and the tilting cylinder are tiltedly arranged between the tilting support and the box body, the two ends of the tilting cylinder are respectively hinged to the tilting support and the box body, the two ends of the first connecting rod are respectively rotatably connected to the tilting support and the box body, and the two ends of the second connecting rod are respectively rotatably connected to the tilting support and the box body.

[0011] Furthermore, a first motor and a second motor are provided on the top of the upper beam, and two upper beam slides are slidably connected in the upper beam through an upper beam slideway, one of the upper beam slides is provided with a first rack meshing with the output shaft gear of the first motor, and the other upper beam slide is provided with a second rack meshing with the output shaft gear of the second motor, and the upper beam slides are fixedly connected to the tilting support.

[0012] Furthermore, a rotating shaft is rotatably connected in the box body, a gear is sleeved on the rotating shaft, two slides are slidably connected in the box body through a slideway, the gear is located between the two slides, and the slide is provided with a rack that meshes with the gear, a clamp arm is fixed on the slide, a clamp claw is fixed at the bottom of the clamp arm, and the tops of the two clamp arms are connected by a clamping cylinder.

[0013] Furthermore, it also includes a lower cross beam, the upper cross beam and the lower cross beam are fixedly connected in a cross-staggered manner, and positioning devices are provided at both ends of the lower cross beam.

[0014] Furthermore, the upper crossbeam is provided with a rotary mechanism for driving the upper crossbeam to rotate.

[0015] Furthermore, the rotating mechanism includes a bracket, a hanging shaft is provided on the bracket, a motor is provided on the side of the bracket, a driving gear is provided on the output shaft of the motor, the bottom of the bracket is rotatably connected to a driven gear that meshes with the driving gear, and a connecting frame is fixed to the bottom of the driven gear, and the connecting frame is fixedly connected to the upper crossbeam.

[0016] Furthermore, the positioning device includes fixed brackets fixed at both ends of the lower cross beam, and a positioning cylinder and a movable bracket are provided in the fixed bracket. The top of the positioning cylinder is fixedly connected to the fixed bracket, the movable bracket is slidably connected to the fixed bracket, and the bottom of the positioning cylinder is connected to the movable bracket.

[0017] Furthermore, a plurality of clamp claws are fixed on the outer periphery of the bottom of the clamp arm.

[0018] Furthermore, slide grooves are provided on both sides of the movable bracket, and guide wheels are provided on the inner side of the fixed bracket, and the guide wheels are placed in the slide grooves.

[0019] Beneficial effects:

[0020] The present invention provides a steel bracket hanger, which is connected to the clamping mechanism through a tilting mechanism arranged at both ends of the upper crossbeam, so that the tilting mechanism drives the clamping mechanism to change from a horizontal state to an inclined state, and then the steel coil bracket clamped by the clamping mechanism tilts accordingly, so that the steel coil bracket can be tilted into the car, and the horizontal distance between the steel coil bracket and the car is increased. In this way, when the steel coil bracket is lifted, it can be more easily placed in the car, which can effectively avoid getting stuck or bumping at the opening at the top of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a structural schematic diagram of a horizontal state of a steel bracket hanger disclosed in the present invention;

[0023] Figure 2 It is a structural schematic diagram of a steel bracket hanger in an inclined state disclosed by the present invention;

[0024] Figure 3 This is a schematic front view of a steel bracket hanger disclosed in the present invention;

[0025] Figure 4 for Figure 3 BB cross-sectional view;

[0026] Figure 5 for Figure 3 FF cross-sectional view;

[0027] Figure 6 It is a side view schematic diagram of a steel bracket hanger disclosed in the present invention;

[0028] Figure 7 for Figure 6 A magnified schematic diagram of point A;

[0029] Figure 8 for Figure 6 DD cross-sectional view;

[0030] Figure 9 for Figure 8 An enlarged schematic diagram of point E;

[0031] Figure 10 for Figure 6 CC cross-sectional view;

[0032] Figure 11 for Figure 10 An enlarged schematic diagram of point G;

[0033] Figure 12 This is a structural schematic diagram of a slewing mechanism of a steel bracket hanger disclosed in the present invention;

[0034] Figure 13 It is a cross-sectional schematic diagram of a positioning device of a steel bracket hanger disclosed in the present invention;

[0035] Figure 14 This is a schematic diagram of the cooperation between the steel bracket hoist and the carriage when the steel coil bracket is hoisted by the steel bracket hoist disclosed in the present invention. Figure 1 ;

[0036] Figure 15 This is a schematic diagram of the cooperation between the steel bracket hoist and the carriage when the steel coil bracket is hoisted by the steel bracket hoist disclosed in the present invention. Figure 2 ;

[0037] Figure 16 This is a schematic diagram of the cooperation between the steel bracket hoist and the carriage when the steel coil bracket is hoisted by the steel bracket hoist disclosed in the present invention. Figure 3 ;

[0038] Figure 17 This is a structural schematic diagram of a steel bracket hoist disclosed in the present invention for hoisting a single Q3 steel coil bracket;

[0039] Figure 18 This is a schematic diagram of the main view of a steel bracket hoist disclosed in the present invention hoisting a single Q3 steel coil bracket;

[0040] Figure 19 for Figure 18 An enlarged schematic diagram of point H;

[0041] Figure 20 This is a structural schematic diagram of a steel bracket hoist disclosed in the present invention for hoisting multiple Q3 steel coil brackets;

[0042] Figure 21 This is a schematic front view of a steel bracket hoist disclosed in the present invention hoisting multiple Q3 steel coil brackets;

[0043] Figure 22 This is a structural schematic diagram of a steel bracket hoisting device disclosed in the present invention for hoisting a single QD steel coil bracket;

[0044] Figure 23 This is a schematic front view of a steel bracket hoist disclosed in the present invention hoisting a single QD steel coil bracket;

[0045] Figure 24 for Figure 23 An enlarged schematic diagram of point J;

[0046] Figure 25This is a structural schematic diagram of a steel bracket hoist disclosed in the present invention for hoisting multiple QD steel coil brackets;

[0047] Figure 26 This is a schematic front view of a steel bracket hoist disclosed in the present invention hoisting multiple QD steel coil brackets;

[0048] Figure 27 for Figure 26 Enlarged schematic diagram of K.

[0049] In the picture:

[0050] 1. Rotating mechanism; 11. Bracket; 12. Motor; 13. Driving gear; 14. Driven gear; 15. Connecting frame;

[0051] 2. Lower beam;

[0052] 3. Upper crossbeam; 31. First motor; 32. Second motor; 33. First rack; 34. Second rack; 35. Upper crossbeam slide; 36. Upper crossbeam slideway;

[0053] 4. Clamping mechanism; 41. Rotating shaft; 42. Clamping cylinder; 43. Rack; 44. Clamp arm; 451. First clamp jaw; 452. Second clamp jaw; 453. Third clamp jaw; 46. Gear; 47. Box; 48. Slide; 49. Slide plate;

[0054] 5. Positioning device; 51. Positioning cylinder; 52. Movable bracket; 53. Limit block; 54. Fixed bracket; 55. Guide wheel;

[0055] 6. Tilt mechanism; 61. Tilt support; 62. First connecting rod; 63. Second connecting rod; 64. Tilt cylinder;

[0056] 7. Hanging shaft;

[0057] Q, steel coil bracket; Q3, Q3 steel coil bracket; QD, QD steel coil bracket;

[0058] I, carriage; L, positioning block. DETAILED DESCRIPTION

[0059] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0060] This embodiment provides a steel bracket hanger, such as Figure 1 and Figure 2 As shown, it comprises: an upper crossbeam 3, a clamping mechanism 4 for clamping the steel coil bracket, and a tilting mechanism 6 for switching the clamping mechanism 4 from a horizontal state to an inclined state;

[0061] The two clamping mechanisms 4 are respectively arranged at two ends of the upper crossbeam 3 , and the upper crossbeam 3 and the clamping mechanisms 4 are connected via a tilting mechanism 6 .

[0062] like Figures 14 to 16 As shown, the present embodiment provides a steel bracket sling, which is connected to the clamping mechanism 4 through a tilting mechanism 6 provided at both ends of the upper crossbeam 3, so that the tilting mechanism 6 drives the clamping mechanism 4 to change from a horizontal state to an inclined state, thereby causing the steel coil bracket Q clamped by the clamping mechanism 4 to tilt accordingly, thereby allowing the steel coil bracket Q to tilt into the carriage I, thereby increasing the horizontal distance between the steel coil bracket Q and the carriage I. In this way, when lifting the steel coil bracket Q, it can be more easily placed in the carriage I, which can effectively avoid getting stuck or bumping at the opening at the top of the carriage.

[0063] like Figures 14 to 16 As shown, in actual use, when the steel coil bracket Q is placed in the carriage I, one end of the inclined steel coil bracket Q contacts the positioning block L in the carriage I for positioning the steel coil bracket Q to achieve preliminary positioning, and then turns from the inclined state to the horizontal state to achieve the placement of the steel coil bracket Q.

[0064] Specifically, if Figure 3 As shown, the clamping mechanism 4 includes a box 47;

[0065] like Figure 3 As shown, the tilting mechanism 6 includes a tilting support 61, a first connecting rod 62, a second connecting rod 63 and a tilting cylinder 64, and the tilting support 61 is fixed on the upper beam 3;

[0066] The first connecting rod 62, the second connecting rod 63 and the tilting cylinder 64 are tiltedly arranged between the tilting support 61 and the box 47. The two ends of the tilting cylinder 64 are respectively hinged to the tilting support 61 and the box 47. The two ends of the first connecting rod 62 are respectively rotatably connected to the tilting support 61 and the box 47. The two ends of the second connecting rod 63 are respectively rotatably connected to the tilting support 61 and the box 47.

[0067] The tilting cylinder 64 extends, driving the clamping mechanism 4 from a horizontal state to a tilted state; conversely, the tilting cylinder 64 contracts, driving the clamping mechanism 4 from a tilted state to a horizontal state. The first connecting rod 62 and the second connecting rod 63 ensure the stability of the rotation of the clamping mechanism 4.

[0068] Specifically, if Figure 5As shown, the housing 47 is rotatably connected to a rotary shaft 41, and a gear 46 is fixed on the rotary shaft 41. Figure 5 and Figure 7 As shown, a slide 41 is fixed in the box 47, and two slides 49 are slidably connected to the box 47 through a slide 48. The gear 46 is located between the two slides 49. The slide 49 is provided with a rack 43 that meshes with the gear 46. A clamp arm 44 is fixed on the slide 49, and a clamp claw is fixed at the bottom of the clamp arm 44. Figure 3 As shown, the tops of the two clamp arms 44 are connected via a clamping oil cylinder 42 (the two ends of the clamping oil cylinder 42 are respectively hinged or fixedly connected to the two clamp arms 44).

[0069] Preferably, if Figure 4 As shown, the top of the upper beam 3 is provided with a first motor 31 and a second motor 32. Figure 9 and Figure 10 As shown, an upper beam slide 36 is fixed in the upper beam 3, and the upper beam 3 is slidably connected to two upper beam slide plates 35 through the upper beam slide 36. One of the upper beam slide plates 35 is provided with a first rack 33 meshing with the output shaft gear of the first motor 31, and the other upper beam slide plate 35 is provided with a second rack 34 meshing with the output shaft gear of the second motor 32. The two upper beam slide plates 35 are respectively fixedly connected to the two tilting supports 61.

[0070] In this embodiment, the first motor 31 and the second motor 32 are both right-angle reduction motors with a compact structure, which can reasonably utilize the space on the top of the upper crossbeam 3. The first rack 33 and the second rack 34 are located at different heights, and the output shaft gear of the first motor 31 and the output shaft gear of the second motor 32 are located corresponding to the first rack 33 and the second rack 34 respectively.

[0071] By setting up the first motor 31 and the second motor 32, the two tilting supports 61 can be moved in opposite directions by utilizing the forward and reverse rotation of the motors, thereby changing the spacing between the two clamping mechanisms 4 to adapt to steel coil brackets of different specifications; the two tilting supports 61 can also be moved in the same direction, so that when there is no one driving above the spreader and it remains stationary, the two clamping mechanisms 4 can be displaced while the spacing remains unchanged, thereby performing horizontal position adjustment and achieving higher displacement accuracy.

[0072] Specifically, if Figure 1 and Figure 2 As shown, the upper crossbeam 3 is provided with a rotary mechanism 1 for driving the upper crossbeam 3 to rotate. Figure 12 As shown, the rotary mechanism 1 includes a bracket 11, as shown in FIG. Figure 1 and Figure 2As shown, the bracket 11 is fixed with a hanging shaft 7, which is used to connect the hook of the unmanned vehicle. Figure 12 As shown, a motor 12 is fixed to the side of the bracket 11, and a driving gear 13 is provided on the output shaft of the motor 12. The bottom of the bracket 11 is rotatably connected to a driven gear 14 that meshes with the driving gear 13 through a rotating shaft. A connecting frame 15 is fixed to the bottom of the driven gear 14, and the connecting frame 15 is fixedly connected to the upper beam 3. The slewing mechanism 1 is used to adjust the angle of the sling and the hoisted steel coil bracket in the horizontal plane to facilitate loading and unloading.

[0073] Specifically, if Figure 1 and Figure 2 As shown, it also includes a lower crossbeam 2, and the upper crossbeam 3 and the lower crossbeam 2 are fixedly connected in a cross-staggered manner, as shown in FIG. Figure 8 As shown, positioning devices 5 are provided at both ends of the lower crossbeam 2. Figure 11 and Figure 13 As shown, the positioning device 5 includes a fixed bracket 54 fixed at both ends of the lower cross beam 2, and a positioning cylinder 51 and a movable bracket 52 are provided in the fixed bracket 54. The cylinder body of the positioning cylinder 51 is fixedly connected to the fixed bracket 54, and the movable bracket 52 is slidably connected to the fixed bracket 54. The piston rod of the positioning cylinder 51 is connected to the movable bracket 52 (hinged or fixedly connected).

[0074] The positioning device 5 is used to adjust the distance between the bottom of the movable bracket 52 and the clamp claw to ensure that when the sling is placed on the steel coil bracket, the position of the clamp claw can correspond to the correct position of the steel coil bracket that needs to be lifted. The positioning cylinder 51 drives the movable bracket 52 to descend, pressing it onto the steel coil bracket to improve stability during lifting.

[0075] Specifically, if Figure 13 As shown, the movable bracket 52 is provided with a slide groove on both sides, and the inner side of the fixed bracket 54 is provided with a guide wheel 55. The guide wheel 55 is placed in the slide groove, and the guide wheel 55 plays a guiding role. A limiting block 53 is also fixed on the top of the fixed bracket 54 to prevent the guide wheel 55 from falling out of the slide groove.

[0076] Preferably, a plurality of claws are fixed to the outer periphery of the bottom of the clamp arm 44. The lifting device disclosed in this embodiment can adjust the distance between the two clamping mechanisms 4 by the first motor 31 and the second motor 32, and can also open and close the clamp arm 44 of the clamping mechanism 4 by the clamping cylinder 42, so that different forms of lifting can be achieved. Therefore, multiple claws are equipped;

[0077] In this embodiment, if Figure 3 and Figure 6 As shown, a first clamping claw 451, a second clamping claw 452 and a third clamping claw 453 are fixed to the bottom of the clamp arm 44 to adapt to different forms of lifting;

[0078] like Figures 17 to 19 As shown, when hoisting a single Q3 steel coil bracket, the unmanned crane hook is hooked onto the hoisting shaft 7, the clamp arm 44 is inserted into the empty slot of the Q3 steel coil bracket, the clamping cylinder 42 is actuated, driving the clamp arm 44 to move and contact the Q3 steel coil bracket, the positioning cylinder 51 is actuated, pressing the bottom of the movable bracket 52 to the top of the Q3 steel coil bracket, and the clamping cylinder 42 generates pressure between the second clamp claw 452 and the Q3 steel coil bracket. The single Q3 steel coil bracket is hoisted by relying on the friction between the second clamp claw 452 and the Q3 steel coil bracket.

[0079] like Figure 20 and Figure 21 As shown, when lifting multiple Q3 steel coil brackets, the unmanned crane hook is hooked onto the lifting shaft 7, the clamp arm 44 is inserted into the empty slot of the Q3 steel coil bracket, the clamping cylinder 42 is actuated, driving the clamp arm 44 to move and contact the Q3 steel coil bracket, the positioning cylinder 51 is actuated, pressing the bottom of the movable bracket 52 to the top of the Q3 steel coil bracket, and the clamping cylinder 42 generates pressure between the second clamp claw 452 and the Q3 steel coil bracket. The friction between the second clamp claw 452 and the Q3 steel coil bracket is used to lift multiple Q3 steel coil brackets.

[0080] like Figures 22 to 24 As shown, when lifting a single QD steel coil bracket, the unmanned crane hook is hooked onto the lifting shaft 7, the clamp arm 44 is inserted into the empty slot of the QD steel coil bracket, the clamping cylinder 42 is actuated, driving the clamp arm 44 to move and contact the QD steel coil bracket, the positioning cylinder 51 is actuated, pressing the bottom of the movable bracket 52 to the top of the Q3 steel coil bracket, and the first clamp claw 451 holds the QD steel coil bracket, thereby relying on the second clamp claw 452 to lift the single QD steel coil bracket;

[0081] like Figures 25 to 27 As shown, when lifting multiple QD steel coil brackets, the unmanned crane hook is hung on the lifting shaft 7, the clamp arm 44 is inserted into the empty slot of the QD steel coil bracket, the clamping cylinder 42 is actuated to drive the clamp arm 44 to move and contact the QD steel coil bracket, the positioning cylinder 51 is actuated to press the bottom of the movable bracket 52 to the top of the Q3 steel coil bracket, the first motor 31 and the second motor 32 are actuated until the third clamp claw 453 supports the QD steel coil bracket, thereby relying on the third clamp claw 453 to lift multiple QD steel coil brackets.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steel bracket hanger, characterized in that: include: An upper crossbeam (3), a clamping mechanism (4) for clamping a steel coil bracket, and a tilting mechanism (6) for switching the clamping mechanism (4) from a horizontal state to an inclined state; The two clamping mechanisms (4) are respectively arranged at the two ends of the upper crossbeam (3), and the upper crossbeam (3) and the clamping mechanism (4) are connected via a tilting mechanism (6).

2. The steel bracket hanger according to claim 1, characterized in that: The clamping mechanism (4) includes a box (47); The tilting mechanism (6) comprises a tilting support (61), a first connecting rod (62), a second connecting rod (63) and a tilting oil cylinder (64); the tilting support (61) is fixed on the upper crossbeam (3); The first connecting rod (62), the second connecting rod (63) and the tilting oil cylinder (64) are tiltedly arranged between the tilting support (61) and the box (47); the two ends of the tilting oil cylinder (64) are respectively hinged to the tilting support (61) and the box (47); the two ends of the first connecting rod (62) are respectively rotatably connected to the tilting support (61) and the box (47); the two ends of the second connecting rod (63) are respectively rotatably connected to the tilting support (61) and the box (47).

3. The steel bracket hanger according to claim 2, characterized in that: A first motor (31) and a second motor (32) are provided at the top of the upper beam (3); two upper beam slide plates (35) are slidably connected in the upper beam (3) via an upper beam slideway (36); one of the upper beam slide plates (35) is provided with a first rack (33) meshing with the output shaft gear of the first motor (31); the other upper beam slide plate (35) is provided with a second rack (34) meshing with the output shaft gear of the second motor (32); and the upper beam slide plates (35) are fixedly connected to the tilting support (61).

4. The steel bracket hanger according to claim 2, characterized in that: A rotary shaft (41) is rotatably connected in the box (47), a gear (46) is sleeved on the rotary shaft (41), two slide plates (49) are slidably connected in the box (47) through a slideway (48), the gear (46) is located between the two slide plates (49), a rack (43) meshing with the gear (46) is provided on the slide plate (49), a clamp arm (44) is fixed on the slide plate (49), a clamp claw is fixed at the bottom of the clamp arm (44), and the tops of the two clamp arms (44) are connected by a clamping oil cylinder (42).

5. The steel bracket hanger according to claim 1, characterized in that: It also includes a lower crossbeam (2), the upper crossbeam (3) and the lower crossbeam (2) are fixedly connected in a cross-staggered manner, and positioning devices (5) are provided at both ends of the lower crossbeam (2).

6. The steel bracket hanger according to claim 1, characterized in that: The upper crossbeam (3) is provided with a rotary mechanism (1) for driving the upper crossbeam (3) to rotate.

7. The steel bracket hanger according to claim 6, characterized in that: The rotary mechanism (1) comprises a bracket (11), a suspension shaft (7) is provided on the bracket (11), a motor (12) is provided on the side of the bracket (11), a driving gear (13) is provided on the output shaft of the motor (12), a driven gear (14) meshing with the driving gear (13) is rotatably connected at the bottom of the bracket (11), a connecting frame (15) is fixed at the bottom of the driven gear (14), and the connecting frame (15) is fixedly connected to the upper beam (3).

8. The steel bracket hanger according to claim 5, characterized in that: The positioning device (5) comprises fixed brackets (54) fixed to both ends of the lower crossbeam (2); a positioning oil cylinder (51) and a movable bracket (52) are provided in the fixed bracket (54); the top of the positioning oil cylinder (51) is fixedly connected to the fixed bracket (54); the movable bracket (52) is slidably connected to the fixed bracket (54); and the bottom of the positioning oil cylinder (51) is connected to the movable bracket (52).

9. The steel bracket hanger according to claim 4, characterized in that: A plurality of clamp claws are fixed on the outer periphery of the bottom of the clamp arm (44).

10. The steel bracket hanger according to claim 8, characterized in that: Slide grooves are provided on both sides of the movable bracket (52), and a guide wheel (55) is provided on the inner side of the fixed bracket (54), and the guide wheel (55) is placed in the slide grooves.

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