A translation type steel lifting device and lifting method thereof

Abstract

The present invention discloses a translational steel section hanger, comprising a main hanger beam, a hanging leg, a jaw assembly and a driving mechanism. The main hanger beam is a horizontally placed crossbeam with hanging points symmetrically arranged on the top. The two hanging legs are symmetrically and slidably connected to the two ends of the main hanger beam. The driving mechanism is arranged on the main hanger beam and can drive the two hanging legs to extend or retract along the length direction of the main hanger beam. The hanging leg is an L-shaped structure and the outer end is connected to an end support plate vertically protruding downward. A plurality of jaw assemblies are regularly arranged on the end support plate. The working end of the jaw assembly faces inward and can be elastically inserted into the end pores of the steel section bundle. The translational steel section hanger of the present invention and the hoisting method thereof are convenient to hoist and highly efficient to use, and can hoist steel sections of different types and specifications.

Description

Technical Field

[0001] The invention relates to the technical field of steel section hangers, and in particular to a translational steel section hanger and a hoisting method thereof. Background Art

[0002] At present, due to the large variety and specifications of steel, such as channel steel, angle steel, I-beam, H-beam, etc., the hoisting process usually adopts the form of hanging wire rope slings at both ends of the beam. This form of sling has the following defects in use:

[0003] (1) When using a beam to hang wire rope rigging for lifting, there needs to be space under the steel section for passing the wire rope. Moreover, the steel section is angular, which can easily cause damage to the wire rope. The wire rope is very easy to break, causing safety accidents.

[0004] (2) The length of the steel sections varies, and the spacing of the wire rope slings needs to be changed frequently to ensure safe lifting.

[0005] (3) When loading, there is usually no pad under the steel section. At this time, the wire rope is not easy to pull out from the bottom of the steel section, and it is easy to swing when pulling out, causing personal injury.

[0006] (4) Due to the angularity of the steel section, the wire rope slings need to be replaced frequently to ensure safety, and the economic efficiency is not optimistic.

[0007] Therefore, it is necessary to develop a translational steel hoist and a hoisting method thereof, which is convenient to hoist and has high efficiency, and can be widely used in steel mills, logistics and other places where bulk steel is hoisted. Summary of the invention

[0008] The purpose of the present invention is to provide a translational steel section hoist, which is convenient for hoisting and has high use efficiency and can hoist steel sections of different types and specifications.

[0009] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0010] The present invention discloses a translational steel section hanger, comprising a main hanger beam, hanging legs, a jaw assembly and a driving mechanism, wherein the main hanger beam is a horizontally placed crossbeam and has hanging points symmetrically arranged on the top, and two hanging legs are symmetrically and slidably connected to the two ends of the main hanger beam, and the driving mechanism is arranged on the main hanger beam and can drive the two hanging legs to extend or retract along the length direction of the main hanger beam; the hanging legs are of L-shaped structure and the outer ends are connected to an end support plate vertically protruding downward, and a plurality of jaw assemblies are regularly arranged on the end support plate, and the working ends of the jaw assemblies face inward and can be elastically inserted into the end gaps of the steel section bundles.

[0011] Furthermore, the main lifting beam adopts an I-beam structure, and two groups of lifting ears are symmetrically arranged in the middle of the I-beam, and the lifting ears are connected to the hook of the lifting equipment through a sling and a main lifting ring.

[0012] Furthermore, both ends of the I-beam are arranged as slide rails, and the inner ends of the hanging legs are arranged with four roller assemblies which guide and slide on the slide rails.

[0013] Furthermore, the roller assembly includes a roller shaft, a roller body and a bearing, the outer end of the roller shaft is assembled on the inner end side wall of the hanging leg, the inner end of the roller shaft is installed with the roller body through the bearing, and the outer cylindrical surface clearance of the roller body is fitted within the spacing of the slide rail portion.

[0014] Furthermore, the roller assembly also includes a thin lock nut and an end seal, the inner end of the roller shaft is set as a threaded section, the thin lock nut is threadedly connected to the threaded section and axially locks the position of the inner ring of the bearing, and the end seal is installed on the outer end of the roller body by screws and axially locks the outer ring of the bearing.

[0015] Furthermore, the pliers tooth assembly includes a pliers tooth body, a rear pressure sleeve and a compression spring, the end support plate is two parallel vertical plates, the rear pressure sleeve is installed in the mounting hole of the outer vertical plate, the working end of the pliers tooth body protrudes from the mounting hole of the inner vertical plate and the rear end is guided to slide in the hole of the rear pressure sleeve, and the compression spring is sleeved outside the pliers tooth body and is pressed between the inner end of the rear pressure sleeve and the tail of the pliers tooth body.

[0016] Furthermore, a stopper is provided at the tail of the jaw body, a groove is provided at the inner end of the rear pressure sleeve, and both ends of the compression spring abut against the stopper and the bottom surface of the groove; the stopper prevents the jaw body from slipping out of the mounting hole of the inner vertical plate as a whole.

[0017] Furthermore, the working end of the forceps body is configured as a round head.

[0018] Furthermore, the driving mechanism includes a driving unit, a transmission shaft, a universal joint, a lead screw and a slider, the driving unit is arranged at the middle top of the main suspension beam, and the two lead screws are horizontally supported at both ends of the main suspension beam through bearing seats; the outputs at both ends of the driving unit are respectively connected to the lead screw ends through transmission shafts and universal joints; the slider is threadedly connected to the lead screw, and the slider is installed on the slider mounting seat at the top of the inner end of the suspension leg.

[0019] The present invention also discloses a method for lifting a translational steel section hanger, which utilizes any of the translational steel section hangers described above for lifting, and inserts the ends of the steel section bundle by means of telescopic jaws.

[0020] Compared with the prior art, the beneficial technical effects of the present invention are:

[0021] The present invention discloses a translational steel section hoist, which has two suspension legs symmetrically and slidably connected to the two ends of the main suspension beam, and the working clamping length is adjustable, so that bundles of steel sections of different lengths can be adapted and hoisted. By regularly arranging a plurality of jaw assemblies on the end support plate, the ends of the bundle of steel sections can be well adapted to avoid missing insertion or no insertion. The elastic setting of the working end of the jaw assembly facilitates the insertion at the position with a pore, and the working end is retracted in the place without a pore, which does not affect the strength of the plug-in connection. The present invention uses the suspension legs at both ends to quickly insert and clamp the ends of the bundle of steel sections, which is faster, more convenient and saves manpower compared to the traditional wire rope rigging. The translational steel section hoist of the present invention is easy to hoist and has high use efficiency, and can hoist steel sections of different types and specifications.

[0022] In addition, two sets of lifting ears are symmetrically welded in the middle of the main suspension beam body, which is convenient for installing the sling and the main lifting ring, and the steel bundle is lifted in a stable and balanced manner in the center. The roller assembly composed of the roller shaft, the roller body and the bearing can be smoothly guided and slidably connected within the spacing of the slide rail part, and the resistance is small when the suspension leg is extended and retracted, which is convenient for adjustment. The thin lock nut and the end cover are set to ensure that the axial positioning of the roller body is firm, and the roller body is prevented from falling off during use. The compression spring is pressed between the inner end of the rear pressure sleeve and the tail of the clamp body, and the clamp body can be retracted when the working end of the clamp body is inserted and encounters resistance, avoiding hard extrusion and deformation. When opened, the clamp body is automatically ejected again under the action of the compression spring. The setting of the stopper facilitates the abutment of the compression spring and prevents the clamp body from falling out of the mounting hole of the inner vertical plate as a whole. The outer end of the working end of the clamp body is set as a round head or a pointed head, which is convenient for guiding and smoothing during insertion, so that the insertion action is smooth. By setting the drive unit to have symmetrical output at both ends, it is ensured that the legs at both ends can make telescopic movements simultaneously and synchronously; the legs are driven by the screw and slider threaded transmission connection, and the rotary drive is converted into forward and backward linear motion. The structure has good self-locking properties to avoid disengagement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the main structure of the translational steel hanger of the present invention;

[0025] Figure 2 for Figure 1 Schematic diagram of the structure viewed from above;

[0026] Figure 3 It is a schematic diagram of the main structure of the main suspension beam of the present invention;

[0027] Figure 4 It is a schematic diagram of the main structure of the hanging leg of the present invention;

[0028] Figure 5 It is a left-side structural schematic diagram of the hanging leg of the present invention;

[0029] Figure 6 for Figure 5 A schematic diagram of the partial enlarged structure of the middle I part;

[0030] Figure 7 It is a schematic diagram of the cross-sectional structure of the position of the forceps tooth assembly of the present invention.

[0031] Explanation of the reference numerals in the accompanying drawings: 1. Main hanging beam; 101. Slide rail; 102. Lifting ear; 2. Lifting leg; 201. Roller assembly; 2011. Roller body; 2012. Bearing; 2013. Thin lock nut; 2014. End cover; 202. Slider mounting seat; 203. End support plate; 3. Jaw assembly; 301. Jaw body; 3011. Stop platform; 3012. Round head; 302. Rear pressure sleeve; 303. Compression spring; 4. Motor; 5. Reducer; 6. Drive shaft; 7. Universal joint; 8. Screw; 9. Sling; 10. Main lifting ring; 11. Electric control box. DETAILED DESCRIPTION

[0032] The core of the present invention is to provide a translational steel section hoist and a hoisting method thereof, which is convenient to hoist and has high use efficiency and can hoist steel sections of different types and specifications.

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] With reference to the accompanying drawings, Figure 1 This is a schematic diagram of the main structure of the translational steel hanger of the present invention; Figure 2 for Figure 1 Schematic diagram of the structure viewed from above; Figure 3 It is a schematic diagram of the main structure of the main suspension beam of the present invention;

[0036] Figure 4It is a schematic diagram of the main structure of the hanging leg of the present invention; Figure 5 It is a left-side structural schematic diagram of the hanging leg of the present invention; Figure 6 for Figure 5 A schematic diagram of the partial enlarged structure of the middle I part; Figure 7 It is a schematic diagram of the cross-sectional structure of the position of the forceps tooth assembly of the present invention.

[0037] In a specific embodiment, Figures 1 to 7 As shown, a translational steel section hoist comprises a main suspension beam 1, suspension legs 2, a jaw assembly 3 and a driving mechanism. The main suspension beam 1 is a horizontally placed crossbeam and has symmetrically arranged lifting points on the top, and the lifting points are used to connect the lifting equipment. The two suspension legs 2 are symmetrically and slidably connected to the two ends of the main suspension beam 1, and the driving mechanism is arranged on the main suspension beam 1 and can drive the two suspension legs 2 to extend or retract along the length direction of the main suspension beam 1. The suspension leg 2 is an L-shaped structure and the outer end is connected to an end support plate 203 that extends vertically downward, and the end support plate 203 extends in the width direction of both sides and has a flat bottom. A plurality of jaw assemblies 3 are regularly arranged on the end support plate 203, and the working end of the jaw assembly 3 is elastically arranged inward, and the working end can be elastically inserted into the end hole of the steel section bundle to be lifted.

[0038] The steel sections such as channel steel, angle steel, I-beam, H-beam or round tube, square tube, special-shaped tube etc. which are packed into bundles all have pores at the ends of the steel section or tube bundles due to the influence of the cross-sectional characteristics. Therefore, when the translational steel section hoist of the present invention is used for hoisting, the hoisting equipment hoists the main hoisting beam 1 in parallel to the horizontal position above the steel bundle through the rigging, and the end support plate 203 is aligned with the end of the steel bundle. The driving mechanism is started, and the two hanging legs 2 are pulled back inward at the same time, and the working end of the jaw assembly 3 is elastically inserted into the end pore of the steel bundle to be hoisted, completing the connection between the translational steel section hoist of the present invention and the steel bundle. After the hoisting equipment works and hoists the steel bundle to the position where it needs to be placed, the driving mechanism is activated again, and the two hanging legs 2 are pushed outward at the same time, and the working end of the jaw assembly 3 withdraws from the end pore of the steel bundle, and the unhooking is completed. Prepare for the next hoisting.

[0039] Obviously, for a single or multiple steel sections or pipes of the same length specification, as long as the ends can be firmly plugged in, the translational steel section hoist of the present invention can be used for hoisting. Similar expansions of the scope of use all fall within the protection scope of the present invention.

[0040] By providing two suspension legs 2 that are symmetrically and slidably connected to the two ends of the main suspension beam 1, the working clamping length can be adjusted, and bundles of steel sections of different lengths can be adapted and hoisted. By regularly arranging a plurality of jaw assemblies 3 on the end support plate 203, the ends of the bundle of steel sections can be well adapted to avoid missing insertion or no insertion. The elastic setting of the working end of the jaw assembly 3 facilitates the insertion at the position with pores, and the working end is retracted in the place without pores, which does not affect the strength of the plug-in connection. The present invention uses the suspension legs 2 with translational motion at both ends to quickly insert and clamp the ends of the bundle of steel sections, which is faster, more convenient, and saves manpower compared to the traditional wire rope rigging. The translational steel section hoist of the present invention is easy to hoist and has high use efficiency, and can hoist steel sections of different types and specifications.

[0041] In a specific embodiment of the present invention, Figure 1 and Figure 3 As shown, the main lifting beam 1 adopts an I-beam structure, and two groups of lifting ears 102 are symmetrically welded in the middle of the I-beam. The lifting holes of the lifting ears 102 are connected to the hooks of the lifting equipment through U-shaped shackles, slings 9 and main lifting rings 10.

[0042] Specifically, if Figure 3 and Figure 4 As shown, the two ends of the I-beam are provided with slide rails 101, which are specifically guide sliding surfaces of the upper and lower wing plates of the I-beam. The inner end of the hanging leg 2 is provided with four roller assemblies 201 for guiding and sliding on the slide rails 101.

[0043] Specifically, if Figure 5 and Figure 6 As shown, the roller assembly 201 includes a roller shaft, a roller body 2011 and a bearing 2012. The outer end of the roller shaft is assembled on the inner end side wall of the hanging leg 2, and the inner end of the roller shaft is installed with the roller body 2011 through the bearing 2012. The outer cylindrical surface clearance of the roller body 2011 fits within the spacing of the slide rail part 101.

[0044] Specifically, if Figure 5 and Figure 6 As shown, the roller assembly 201 also includes a thin lock nut 2013 and an end seal 2014. The inner end of the roller shaft is set as a threaded section. The thin lock nut 2013 is threadedly connected to the threaded section and axially locks the position of the inner ring of the bearing 2012. The end seal 2014 is installed on the outer end of the roller body 2011 by screws and axially locks the outer ring of the bearing 2012.

[0045] Obviously, guide rail sliders or slide groove sliders can also be used for guiding and sliding between the main suspension beam 1 and the suspension leg 2. Similar deformation modes all fall within the protection scope of the present invention.

[0046] Two sets of lifting lugs 102 are symmetrically welded to the middle of the main suspension beam 1, which is convenient for installing the sling 9 and the main lifting ring 10, and for lifting the steel bundle in a stable and balanced manner in the center. The roller assembly 201 composed of the roller shaft, the roller body 2011 and the bearing 2012 can be smoothly guided and slidably connected within the spacing of the slide rail 101, and the resistance of the suspension leg 2 is small when it is extended and retracted, which is convenient for adjustment. The thin lock nut 2013 and the end cover 214 are provided to ensure that the axial positioning of the roller body 2011 is firm, and the roller body 2011 is prevented from falling off during use.

[0047] In a specific embodiment of the present invention, Figure 1 , Figure 2 , Figure 5 and Figure 7 As shown, the jaw assembly 3 includes a jaw body 301, a rear compression sleeve 302 and a compression spring 303. The end support plate 203 is two parallel vertical plates, and the tops of the two vertical plates are welded to the outer ends of the crossbeams of the hanging legs 2. The rear compression sleeve 302 is installed in the mounting hole of the outer vertical plate, and the working end of the jaw body 301 protrudes out of the mounting hole of the inner vertical plate and the rear end guide slides in the middle hole of the rear compression sleeve 302, that is, the two mounting holes are coaxially arranged. The compression spring 303 is sleeved outside the jaw body 301 and pressed between the inner end of the rear compression sleeve 302 and the tail of the jaw body 301.

[0048] Specifically, if Figure 7 As shown, a stopper 3011 is provided at the tail of the jaw body 301, a groove is provided at the inner end of the rear compression sleeve 302, and both ends of the compression spring 303 abut against the stopper 3011 and the bottom surface of the groove. The stopper 3011 prevents the jaw body 301 from being entirely disengaged from the mounting hole of the inner vertical plate.

[0049] Specifically, if Figure 7 As shown, the outer end of the working end of the forceps body 301 is configured as a round head 3012 or a pointed head.

[0050] The compression spring 303 is pressed between the inner end of the rear compression sleeve 302 and the tail of the jaw body 301, so that the jaw body 301 can be retracted when the working end of the jaw body 301 encounters resistance when inserted, so as to avoid hard extrusion and deformation. When opened, the jaw body 301 is automatically ejected again under the action of the compression spring 303. The setting of the stopper 3011 facilitates the abutment of the compression spring 303 and prevents the jaw body 301 from being completely dislodged from the mounting hole of the inner vertical plate. The outer end of the working end of the jaw body 301 is set as a round head 3012 or a pointed head, so as to facilitate the guidance and smoothness during insertion, so that the insertion action is smooth.

[0051] In a specific embodiment of the present invention, Figure 1 and Figure 2As shown, the driving mechanism includes a driving unit, a transmission shaft 6, a universal joint 7, a lead screw 8 and a slider. The driving unit includes a motor 4 and a reducer 5 used in conjunction with each other. The reducer 5 is a two-way output mode. The motor 4 is electrically connected to the electric control box 11, and the electric control box 11 is installed on the side of the middle part of the main suspension beam 1. The driving unit is arranged at the middle top of the main suspension beam 1, and two lead screws 8 are horizontally supported at both ends of the main suspension beam 1 through bearing seats. The output at both ends of the driving unit is connected to the end of the lead screw 8 through the transmission shaft 6 and the universal joint 7 respectively. The slider is threadedly connected to the lead screw 8, and the slider is installed on the slider mounting seat 202 at the top of the inner end of the suspension leg 2.

[0052] Further, the control panel of the electric control box 11 is provided with an unlock button, and the electric control circuit is provided with an automatic lock to prevent the lifting device from opening in mid-air. By providing an unlock button, the lifting device can be opened only after the unlock button is manually operated, thereby improving the safety of the operation.

[0053] Obviously, the driving mechanism may also use an electric push rod or a hydraulic cylinder to drive the legs 2 to extend and retract. Similar deformation modes all fall within the protection scope of the present invention.

[0054] By setting the drive unit to have symmetrical output at both ends, it is ensured that the legs 2 at both ends perform telescopic movements simultaneously and synchronously; the legs 2 are driven by the lead screw and the slider threaded transmission connection, and the rotary drive is converted into forward and backward linear motion. The structure has good self-locking properties to avoid disengagement.

[0055] The present invention also discloses a method for lifting a translational steel section hanger, which uses the translational steel section hanger in any of the above-mentioned specific embodiments to lift the steel section bundle, and inserts the ends of the steel section bundle by means of telescopic jaws to complete the clamping, rapid lifting and opening.

[0056] The translational steel lifting device of the present invention is provided with two suspension legs 2 that are symmetrically and slidably connected to the two ends of the main suspension beam 1, and the working clamping length can be adjusted, so that the steel bundles of different lengths can be adapted and hoisted. By regularly arranging a plurality of jaw assemblies 3 on the end support plate 203, the ends of the steel bundles can be well adapted to avoid missing or no plugging. The working end of the jaw assembly 3 is elastically arranged, so that it is convenient to form a plug-in at a position with a pore, and the working end is retracted at a place without a pore, which does not affect the plug-in connection strength. The present invention uses the suspension legs 2 that are translational at both ends to quickly plug and clamp the ends of the steel bundles, which is faster, more convenient and saves manpower compared to the traditional wire rope rigging. The translational steel lifting device of the present invention is convenient to hoist, has high efficiency, and can hoist steels of different types and specifications. In addition, two sets of lifting ears 102 are symmetrically welded to the middle of the main body of the main suspension beam 1, so that after the sling 9 and the main lifting ring 10 are installed, the steel bundles can be lifted in a stable and balanced manner in the center. The roller assembly 201 composed of the roller shaft, the roller body 2011 and the bearing 2012 can be smoothly guided and slidably connected within the spacing of the slide rail 101. The resistance of the hanging leg 2 is small when it is extended and retracted, which is convenient for adjustment. The thin lock nut 2013 and the end cover 2014 are provided to ensure that the axial positioning of the roller body 2011 is firm, and the roller body 2011 is prevented from falling off during use. The compression spring 303 is pressed between the inner end of the rear pressure sleeve 302 and the tail of the jaw body 301, and the jaw body 301 can be retracted when the working end of the jaw body 301 is inserted and encounters resistance, so as to avoid hard extrusion and deformation. When opened, the jaw body 301 is automatically ejected again under the action of the compression spring 303. The stopper 301 is provided to facilitate the abutment of the compression spring 303, and at the same time prevent the jaw body 301 from being completely dislodged from the mounting hole of the inner vertical plate. The outer end of the working end of the jaw body 301 is set as a round head 3012 or a pointed head, which is convenient for guiding and smoothing during insertion, so that the insertion action is smooth. By setting the drive unit to output symmetrically at both ends, it is ensured that the legs 2 at both ends can make telescopic movements at the same time; the legs 2 are driven by the screw and the slider thread transmission connection, and the rotation drive is converted into a straight line motion forward and backward. The structure has good self-locking performance to avoid the occurrence of disengagement.

[0057] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A translational steel hanger, characterized in that: The invention comprises a main suspension beam (1), suspension legs (2), a jaw assembly (3) and a driving mechanism, wherein the main suspension beam (1) is a horizontally placed crossbeam with symmetrically arranged suspension points on the top, and the two suspension legs (2) are symmetrically and slidably connected to the two ends of the main suspension beam (1), and the driving mechanism is arranged on the main suspension beam (1) and can drive the two suspension legs (2) to extend or retract along the length direction of the main suspension beam (1); the suspension legs (2) are L-shaped structures and the outer ends are connected to the end support plates (203) extending vertically downward, and a plurality of jaw assemblies (3) are regularly arranged on the end support plates (203), and the working ends of the jaw assemblies (3) face inward and can be elastically inserted into the end pores of the steel bundle; The clamp tooth assembly (3) includes a clamp tooth body (301), a rear pressure sleeve (302) and a compression spring (303); the end support plate (203) is two parallel vertical plates; the rear pressure sleeve (302) is installed in the mounting hole of the outer vertical plate; the working end of the clamp tooth body (301) protrudes from the mounting hole of the inner vertical plate and the rear end is guided to slide in the hole of the rear pressure sleeve (302); the compression spring (303) is sleeved outside the clamp tooth body (301) and is pressed between the inner end of the rear pressure sleeve (302) and the tail of the clamp tooth body (301).

2. The translational steel hanger according to claim 1, characterized in that: The main lifting beam (1) adopts an I-beam structure, and two groups of lifting ears (102) are symmetrically arranged in the middle of the I-beam. The lifting ears (102) are connected to the hook of the lifting equipment through a lifting rope (9) and a main lifting ring (10).

3. The translational steel hanger according to claim 2 is characterized in that: Both ends of the I-beam are provided with slide rails (101), and the inner ends of the hanging legs (2) are provided with four roller assemblies (201) which are guided and slid on the slide rails (101).

4. The translational steel hanger according to claim 3 is characterized in that: The roller assembly (201) comprises a roller shaft, a roller body (2011) and a bearing (2012); the outer end of the roller shaft is mounted on the inner end side wall of the hanging leg (2); the inner end of the roller shaft is mounted on the roller body (2011) via the bearing (2012); and the outer cylindrical surface clearance of the roller body (2011) fits within the spacing of the slide rail portion (101).

5. The translational steel hanger according to claim 4 is characterized in that: The roller assembly (201) further comprises a thin lock nut (2013) and an end seal (2014); the inner end of the roller shaft is arranged as a threaded section; the thin lock nut (2013) is threadedly connected to the threaded section and axially locks the position of the inner ring of the bearing (2012); the end seal (2014) is mounted on the outer end of the roller body (2011) by means of screws and axially locks the outer ring of the bearing (2012).

6. The translational steel hanger according to claim 1, characterized in that: A stopper (3011) is provided at the tail of the jaw body (301), a groove is provided at the inner end of the rear pressure sleeve (302), and both ends of the compression spring (303) abut against the stopper (3011) and the bottom surface of the groove; the stopper (3011) prevents the jaw body (301) from being entirely disengaged from the mounting hole of the inner vertical plate.

7. The translational steel hanger according to claim 6, characterized in that: The working end of the forceps body (301) is configured as a round head (3012).

8. The translational steel hanger according to any one of claims 1 to 7, characterized in that: The driving mechanism comprises a driving unit, a transmission shaft (6), a universal joint (7), a lead screw (8) and a slider; the driving unit is arranged at the middle top of the main suspension beam (1); the two lead screws (8) are horizontally supported at both ends of the main suspension beam (1) through bearing seats; the outputs at both ends of the driving unit are respectively connected to the ends of the lead screws (8) through the transmission shaft (6) and the universal joint (7); the slider is threadedly connected to the lead screw (8), and the slider is installed on the slider mounting seat (202) at the top of the inner end of the suspension leg (2).

9. A method for lifting a translational steel lifting device, characterized in that: The steel bundle is hoisted using the translational steel hoist as described in any one of claims 1 to 8, and the ends of the steel bundle are plugged in by means of telescopic jaws.

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