CN215439288U

CN215439288U - Lifting appliance for steel formwork of steel truss bridge

Info

Publication number: CN215439288U
Application number: CN202121924576.9U
Authority: CN
Inventors: 颜大方; 蒋勇
Original assignee: Jiangsu Sanshui Construction Engineering Co ltd
Current assignee: Jiangsu Sanshui Construction Engineering Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-01-07
Anticipated expiration: 2031-08-16

Abstract

The utility model relates to a hoist for steel truss bridge steel form relates to the field of hoist, and it includes the hoist frame and installs the fixture who is used for the fixed steel form of centre gripping on the hoist frame, the square frame that the hoist frame comprises two crossbeams that set up relatively and two longerons that set up relatively, and is adjacent fixed connection, two between crossbeam fixed connection centre sill between the crossbeam, be formed with two square districts of suspending in midair between centre sill length direction's both sides and the hoist frame, it is equipped with movable lug in the district to suspend in midair, be provided with guiding mechanism between movable lug and the hoist frame, movable lug passes through guiding mechanism and hoist frame attach together, guiding mechanism is used for adjusting movable lug and suspends the position in midair the district. This application has and is convenient for change hoisting point position to can keep the level stability during the steel form handling, the security is high, need not repeated clamping steel form in order to adjust the focus, convenient operation.

Description

Lifting appliance for steel formwork of steel truss bridge

Technical Field

The application relates to the field of lifting appliances, in particular to a lifting appliance for a large-tonnage bridge steel template.

Background

The steel truss bridge is a structural system between beams and arches, and is a structure formed by integrally combining a bent upper beam structure and a pressure-bearing lower column. Because the beam is rigidly connected with the column, the beam obtains unloading action due to the bending rigidity of the column, and the whole system is of a bending structure and also of a structure with thrust.

Relevant notice is CN 208814493U's chinese utility model patent, it discloses a hoist for bridge steel mould, this hoist for bridge steel mould, including the lifting hook, the bottom fixed mounting of lifting hook has the connecting block, the four corners of connecting block bottom all articulates there is the lifting rope, and the equal fixedly connected with hanger plate in bottom of four lifting ropes, logical groove has all been seted up at the both ends of hanger plate, the top welding that leads to the inslot chamber has telescopic machanism, telescopic machanism's other end welding has fixed pipe, fixed pipe external surface fixed mounting has fixture, fixture includes the ejector sleeve, the welding of one side of ejector sleeve inner chamber has extension spring, extension spring's one end fixedly connected with shelves pole. This hoist for bridge steel mould makes to carry the thing board and can adjust from top to bottom, fixes the steel sheet to can make the device can carry out the centre gripping to the steel sheet of different thickness and fix, improve work efficiency.

In view of the above-mentioned related technologies, the inventor believes that the steel form is prone to tilt when the related lifting appliance is lifted, and the steel form needs to be repeatedly clamped to adjust the center of gravity, which is inconvenient to operate.

SUMMERY OF THE UTILITY MODEL

In order to improve the easy slope that takes place during the steel form handling, need repeated clamping steel form in order to adjust the focus, inconvenient problem operates, this application provides a hoist for steel truss bridge steel form.

The application provides a pair of hoist for steel truss bridge steel form adopts following technical scheme:

the utility model provides a hoist for steel truss bridge steel form, includes the hoist frame and installs the fixture who is used for the fixed steel form of centre gripping on the hoist frame, the hoist frame is by the square frame that two crossbeams that set up relatively and two longerons that set up relatively constitute, and is adjacent fixed connection between crossbeam and the longeron, two fixed connection intermediate beam between the crossbeam, be formed with two square district that suspends in midair between intermediate beam length direction's both sides and the hoist frame, it is equipped with movable lug in the district to suspend in midair, be provided with guiding mechanism between movable lug and the hoist frame, movable lug passes through guiding mechanism and hoist frame attach together, guiding mechanism is used for adjusting movable lug and suspends the position in midair the district.

Through adopting above-mentioned technical scheme, when carrying out the handling of steel form, pass through fixture with the steel form and fix on the hoist frame, later, can utilize wire rope to be connected activity lug and the lifting hook of lifting by crane equipment, at the in-process of lifting by crane, if the steel form takes place the slope, adjust the position of activity lug in the district that suspends in midair through guiding mechanism, change hoisting point position promptly, so that can keep the level stable during the steel form handling, the security is high, need not repeated clamping steel form in order to adjust the focus, convenient operation.

Preferably, a fixed lifting lug is fixed in the middle of the side wall of the cross beam far away from the clamping mechanism.

Through adopting above-mentioned technical scheme, through the collocation of fixed lug and activity lug, can carry out four points to the steel form and lift by crane for the handling of steel form is more steady, and the security is higher.

Preferably, the adjusting mechanism comprises a longitudinal rod and a first driving piece, the longitudinal rod is parallel to the longitudinal beam, the longitudinal rod is connected with the hanger frame in a sliding mode, the sliding direction of the longitudinal rod is the same as the length direction of the cross beam, the movable lifting lug is arranged on the longitudinal rod, the first driving piece is fixed on the hanger frame, the first driving piece is connected with the longitudinal rod, and the first driving piece is used for driving the longitudinal rod to move along the length direction of the cross beam.

Through adopting above-mentioned technical scheme, first driving piece drive vertical pole moves along the length direction of crossbeam, and then the vertical pole drives the removal lug of connecting on the crossbeam and removes to realize the removal of removal lug at hoist frame length direction, thereby can adjust the slope of steel form in hoist frame length direction through first driving piece.

Preferably, the adjusting mechanism further comprises a cross bar and a second driving piece, the cross bar is perpendicular to the longitudinal bar, the cross bar is located at the top of the longitudinal bar, the cross bar is connected with the hanger frame in a sliding mode, the sliding direction of the cross bar is the same as the length direction of the longitudinal beam, the second driving piece is fixed on the hanger frame and connected with the cross bar, and the second driving piece is used for driving the cross bar to move along the length direction of the longitudinal beam; the movable lifting lug is arranged on the outer wall, far away from the longitudinal rod, of the transverse rod, a first sliding hole is formed in the outer wall, close to the movable lifting lug, of the longitudinal rod along the length direction of the longitudinal rod, a second sliding hole is formed in the outer wall, close to the movable lifting lug, of the transverse rod along the length direction of the transverse rod, a connecting rod is fixedly connected to the movable lifting lug, one end, far away from the movable lifting lug, of the connecting rod sequentially penetrates through the second sliding hole and the first sliding hole, and a stop block is fixed to one end, far away from the first sliding hole, of the connecting rod.

By adopting the technical scheme, one end of the connecting rod, which is far away from the movable lifting lug, penetrates through the second sliding hole and the first sliding hole, the movable lifting lug is connected with the longitudinal rod and the transverse rod in a sliding manner through the connecting rod, and the stop block enables the movable lifting lug not to be easily separated from the transverse rod and the longitudinal rod; the second driving piece drives the cross rod to move along the length direction of the longitudinal beam, the cross rod drives the movable lifting lugs to move along the length direction of the longitudinal beam, and the positions of the movable lifting lugs in the suspension area can be adjusted through the cooperation of the first driving piece and the second driving piece, so that the steel formwork can be kept stable in level during lifting and conveying, and the safety is high.

Preferably, fixture sets up the bottom surface of each longeron, fixture includes two sets of centre gripping subassemblies that set up relatively, each the centre gripping subassembly includes grip slipper and lock bolt, set up the centre gripping groove that supplies the steel form to place on the grip slipper, the lock bolt is worn to establish in the connecting rod, the lock bolt is worn to establish on the grip slipper, the lock bolt and grip slipper threaded connection, the one end of lock bolt penetrates in the centre gripping groove and with the steel form butt.

Through adopting above-mentioned technical scheme, before carrying out lifting by crane of steel form, place the steel form in the centre gripping inslot of two relative grip blocks, through the lock bolt of screwing for the one end of lock bolt penetrates in the centre gripping inslot and with the steel form butt, thereby fix the steel form in the centre gripping inslot, simple structure, it is fixed firm, the steel form is difficult for dropping from fixture during the handling.

Preferably, the one end that the fitting pin penetrated the centre gripping groove rotates and is connected with the clamp plate, the clamp plate is kept away from the one side laminating of fitting pin and is fixed with the cushion.

Through adopting above-mentioned technical scheme, increase the area of contact of fitting bolt and steel form, increase the frictional force between steel form and the centre gripping subassembly, improve fixture to the fixed effect of centre gripping of steel form then.

Preferably, fixture still includes adjusting part, adjusting part sets up on the longeron, the grip slipper passes through adjusting part and is connected with the longeron, adjusting part is used for adjusting the interval between two grip slippers.

Through adopting above-mentioned technical scheme, the grip slipper passes through adjusting part and is connected with the longeron, and adjusting part can adjust the interval between two grip slippers, makes then this fixture can be fixed to carrying out the centre gripping of the steel form of different width, improves the suitability of this hoist.

Preferably, the adjusting part includes accommodate motor and two-way screw rod, the mounting groove has been seted up on the longeron, two-way screw rod is located the mounting groove, two-way screw rod rotates with the longeron to be connected, two the one end that the grip slipper is close to the longeron is all established on two-way screw rod, two grip slipper and two-way screw rod threaded connection and threaded connection's the opposite direction of turning round, accommodate motor fixes on the longeron, accommodate motor is connected with two-way screw rod.

Through adopting above-mentioned technical scheme, the accommodate motor rotates through driving two-way screw rod, and then two-way screw rod drives two grip slipper and moves relatively or back on the back to realize the adjustment of distance between two grip slipper, and then can be suitable for the centre gripping of different steel form and fix.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the movable lifting lugs and the adjusting mechanism, the position of a lifting point is convenient to change, so that the steel formwork can be kept horizontal and stable during lifting, the safety is high, the steel formwork does not need to be repeatedly clamped to adjust the gravity center, and the operation is convenient;

2. through setting up adjusting part for fixture can be fixed to the centre gripping of carrying on of the steel form of different width, improves the suitability of this hoist.

Drawings

Fig. 1 is a schematic overall structure diagram of a spreader for a steel truss bridge steel formwork according to an embodiment of the present application.

Fig. 2 is a schematic view of the overall structure of the movable lifting lug according to the embodiment of the present application.

Fig. 3 is a partial cross-sectional view of an embodiment of the present application for embodying a clamping mechanism.

Description of reference numerals: 1. a spreader frame; 11. a cross beam; 111. a first chute; 12. a stringer; 121. a second chute; 122. mounting grooves; 13. fixing the lifting lug; 14. a movable lifting lug; 141. a connecting rod; 142. a stopper; 15. a center sill; 16. a suspension zone; 2. an adjustment mechanism; 21. a longitudinal bar; 211. a first slide hole; 22. a cross bar; 221. a second slide hole; 23. a first driving member; 24. a second driving member; 3. a clamping mechanism; 31. a clamping assembly; 311. a clamping seat; 3111. a connecting plate; 3112. a first mounting plate; 3113. a second mounting plate; 3114. a clamping groove; 312. a locking bolt; 3121. pressing a plate; 33. an adjustment assembly; 331. adjusting the motor; 332. a bidirectional screw.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses hoist for steel truss bridge steel form. Referring to fig. 1, the lifting appliance for the steel formwork of the steel truss bridge comprises a lifting appliance frame 1, a clamping mechanism 3 and an adjusting mechanism 2, wherein the lifting appliance frame 1 is a square frame formed by two oppositely arranged cross beams 11 and two oppositely arranged longitudinal beams 12 in a surrounding mode, and the adjacent cross beams 11 and the longitudinal beams 12 are welded and fixed. Fixed lifting lugs 13 are fixedly welded in the middles of the side walls, far away from the clamping mechanism 3, of the cross beams 11, a middle beam 15 is arranged between the two cross beams 11, two ends of the middle beam 15 are fixedly welded in a perpendicular mode with the middles of the corresponding cross beams 11, and two square suspension areas 16 are formed between two sides of the middle beam 15 in the length direction and the hanger frame 1. The clamping mechanisms 3 are arranged in two groups, the clamping mechanisms 3 are installed on the longitudinal beams 12, and the clamping mechanisms 3 are used for clamping and fixing steel templates to be hoisted. The adjusting mechanisms 2 are arranged in two groups and located in each suspension zone 16. Each suspension area 16 is internally provided with a movable lifting lug 14 used for being connected with hoisting equipment, the movable lifting lug 14 is connected with the lifting appliance framework 1 through an adjusting mechanism 2, and the adjusting mechanism 2 is used for adjusting the position of the movable lifting lug 14 in the suspension area 16.

Referring to fig. 1, the adjustment mechanism 2 includes a first driving member 23, a second driving member 24, a longitudinal bar 21, and a lateral bar 22. The longitudinal bars 21 are parallel to the longitudinal beams 12, the longitudinal bars 21 are connected with the cross beams 11 in a sliding mode, the sliding direction of the longitudinal bars 21 is the same as the length direction of the cross beams 11, and the surfaces, close to each other, of the two cross beams 11 are provided with first sliding grooves 111 for the longitudinal bars 21 to slide. The transverse rod 22 is vertical to the longitudinal rod 21, and the transverse rod 22 is relatively positioned at the top of the longitudinal rod 21; the cross bar 22 is connected with the longitudinal beam 12 in a sliding mode, the sliding direction of the cross bar 22 is the same as the length direction of the longitudinal beam 12, and a second sliding groove 121 for the sliding of the cross bar 22 is formed in one face, close to the longitudinal beam 12 and the middle beam 15, of the longitudinal beam 12. In this embodiment, the first driving member 23 and the second driving member 24 are both electric push rods. The first driving piece 23 is fixed at one end of the side wall of the longitudinal beam 12 close to the suspension area 16, and the output end of the first driving piece 23 is fixedly connected with the longitudinal beam 12 and is used for driving the longitudinal rod 21 to move along the length direction of the cross rod 22; the second driving member 24 is fixed at one end of the lateral wall of the cross beam 11 close to the suspension area 16, and an output end of the second driving member 24 is fixedly connected with the cross bar 22 and used for driving the cross bar 22 to move along the length direction of the longitudinal bar 21.

Referring to fig. 1 and 2, the movable lifting lug 14 is installed on the outer wall of the cross bar 22 far away from the longitudinal bar 21, a first sliding hole 211 is formed in the outer wall of the longitudinal bar 21 near the movable lifting lug 14 along the length direction of the movable lifting lug, a second sliding hole 221 is formed in the outer wall of the cross bar 22 near the movable lifting lug 14 along the length direction of the movable lifting lug, a connecting rod 141 is integrally formed on the bottom surface of the movable lifting lug 14, one end of the connecting rod 141 far away from the movable lifting lug 14 sequentially penetrates through the second sliding hole 221 and the first sliding hole 211, and a stopper 142 is welded at one end of the connecting rod 141 far away from the first sliding hole 211, so that the movable lifting lug 14 is not prone to fall off from the cross bar 22 and the longitudinal bar 21.

Referring to fig. 1 and 2, the first driving member 23 drives the longitudinal bar 21 to move along the length direction of the cross beam 11, and then the longitudinal bar 21 drives the movable lifting lug 14 to move along the second sliding hole 221 on the cross bar 22 through the connecting rod 141; second driving piece 24 drive horizontal pole 22 moves along the length direction of longeron 12, horizontal pole 22 drives movable lug 14 through connecting rod 141 then and removes along the first slide opening 211 on the longeron 21, through the cooperation of first driving piece 23 and second driving piece 24, can adjust the position of movable lug 14 in suspending in midair district 16, change hoisting point position promptly, can keep the level stable when making the steel form handling, the security is high, need not repeated clamping steel form in order to adjust the focus, convenient operation.

Referring to fig. 1 and 3, the clamping mechanism 3 includes an adjusting assembly 33 and two clamping assemblies 31 arranged oppositely, the adjusting assembly 33 is installed on the longitudinal beam 12, the clamping assemblies 31 are connected with the longitudinal beam 12 through the adjusting assembly 33, the clamping assemblies 31 are used for clamping and fixing the steel form, and the adjusting assembly 33 is used for adjusting the distance between the two clamping assemblies 31. The clamping assembly 31 includes a clamping seat 311 and a locking bolt 312, the clamping seat 311 including a connection plate 3111, a first mounting plate 3112 and a second mounting plate 3113. Connecting plate 3111 is used for connecting with adjusting part 33, and first mounting panel 3112 and the equal welded fastening of second mounting panel 3113 are on connecting plate 3111's lateral wall, set up relatively between first mounting panel 3112 and the second mounting panel 3113, and first mounting panel 3112 is located one side that second mounting panel 3113 is close to longeron 12, forms the centre gripping groove 3114 that supplies the steel form to place between first mounting panel 3112, second mounting panel 3113 and the connecting plate 3111. The locking bolt 312 is arranged on the first mounting plate 3112 in a penetrating manner, the locking bolt 312 is in threaded connection with the first mounting plate 3112, and one end of the locking bolt 312 penetrating into the clamping groove 3114 is rotatably connected with a pressing plate 3121 for clamping a steel template. When the steel form is placed in the clamping groove 3114, the locking bolt 312 abuts against the steel form by screwing the locking bolt 312, so that the steel form is clamped and fixed in the clamping groove 3114. In order to improve the effect of clamping and fixing the steel form, a rubber elastic pad (not shown) is bonded and fixed on one surface of the pressure plate 3121 away from the locking bolt 312.

Referring to fig. 1 and 3, the adjusting assembly 33 includes an adjusting motor 331 and a bidirectional screw 332, a mounting groove 122 is formed in the bottom surface of the longitudinal beam 12 along the length direction of the bottom surface, the bidirectional screw 332 is located in the mounting groove 122 and rotatably connected with the longitudinal rod 21, the adjusting motor 331 is fixed on the longitudinal beam 12 through a bolt, and one end of the bidirectional screw 332 penetrates through the longitudinal beam 12 and is connected with an output shaft of the adjusting motor 331. One end of the connecting plate 3111, which is far from the second mounting plate 3113, is inserted in the mounting groove 122, and the connecting plate 3111 is connected with the inner wall of the mounting groove 122 in a sliding manner. The bidirectional screw 332 passes through each connecting plate 3111, the two connecting plates 3111 are screwed to the bidirectional screw 332, and the screw direction of the screwing of the two connecting plates 3111 to the bidirectional screw 332 is opposite. The adjusting motor 331 rotates through driving the bidirectional screw rod 332, and then the bidirectional screw rod 332 drives the two clamping seats 311 to move oppositely or back to back, so that the distance between the two clamping seats 311 is adjusted, and the clamping mechanism 3 can be suitable for clamping and fixing different steel templates.

The implementation principle of this application embodiment a hoist for steel truss bridge steel form is: when carrying out the handling of steel form, according to the width of steel form, adjust the distance of two centre gripping subassemblies 31 through adjusting part 33, later, fix the steel form on grip slipper 311 through lock bolt 312. The movable lifting lug 14 and the fixed lifting lug 13 can then be connected to the lifting hook of the lifting device by means of wire ropes. When lifting, if the steel form inclines, the position of the movable lifting lug 14 in the suspension area 16 is adjusted through the adjusting mechanism 2, namely, the position of a lifting point is changed, so that the steel form can be kept horizontal and stable during lifting, the safety is improved, the steel form does not need to be repeatedly clamped to adjust the gravity center, and the operation is convenient.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a hoist for steel truss bridge steel form, includes hoist frame (1) and installs fixture (3) that are used for the fixed steel form of centre gripping on hoist frame (1), its characterized in that: the lifting appliance comprises a lifting appliance frame (1), and is characterized in that the lifting appliance frame (1) is a square frame consisting of two oppositely-arranged cross beams (11) and two oppositely-arranged longitudinal beams (12), the two cross beams (11) and the longitudinal beams (12) are adjacent to each other and fixedly connected, an intermediate beam (15) is fixedly connected between the two cross beams (11), two square suspension areas (16) are formed between the two sides of the intermediate beam (15) in the length direction and the lifting appliance frame (1), movable lifting lugs (14) are arranged in the suspension areas (16), an adjusting mechanism (2) is arranged between the movable lifting lugs (14) and the lifting appliance frame (1), the movable lifting lugs (14) are connected with the lifting appliance frame (1) through the adjusting mechanism (2), and the adjusting mechanism (2) is used for adjusting the positions of the movable lifting lugs (14) in the suspension areas (16).

2. The lifting appliance for the steel truss bridge steel formwork according to claim 1, wherein: and a fixed lifting lug (13) is fixed in the middle of the side wall of the cross beam (11) far away from the clamping mechanism (3).

3. The lifting appliance for the steel truss bridge steel formwork according to claim 1, wherein: adjustment mechanism (2) are including vertical pole (21) and first driving piece (23), vertical pole (21) are parallel with longeron (12), vertical pole (21) slide with hoist frame (1) and are connected, the direction of sliding of vertical pole (21) is the same with the length direction of crossbeam (11), activity lug (14) set up on vertical pole (21), first driving piece (23) are fixed on hoist frame (1), first driving piece (23) are connected with vertical pole (21), first driving piece (23) are used for driving vertical pole (21) and remove along the length direction of crossbeam (11).

4. The lifting appliance for the steel truss bridge steel formwork according to claim 3, wherein: the adjusting mechanism (2) further comprises a cross rod (22) and a second driving piece (24), the cross rod (22) is perpendicular to the longitudinal rod (21), the cross rod (22) is located at the top of the longitudinal rod (21) relatively, the cross rod (22) is connected with the lifting appliance frame (1) in a sliding mode, the sliding direction of the cross rod (22) is the same as the length direction of the longitudinal beam (12), the second driving piece (24) is fixed on the lifting appliance frame (1), the second driving piece (24) is connected with the cross rod (22), and the second driving piece (24) is used for driving the cross rod (22) to move along the length direction of the longitudinal beam (12); the movable lifting lug (14) is arranged on the outer wall, far away from the longitudinal rod (21), of the cross rod (22), a first sliding hole (211) is formed in the outer wall, close to the movable lifting lug (14), of the longitudinal rod (21) along the length direction of the longitudinal rod, a second sliding hole (221) is formed in the outer wall, close to the movable lifting lug (14), of the cross rod (22) along the length direction of the longitudinal rod, a connecting rod (141) is fixedly connected to the movable lifting lug (14), one end, far away from the movable lifting lug (14), of the connecting rod (141) penetrates through the second sliding hole (221) and the first sliding hole (211) in sequence, and one end, far away from the first sliding hole (211), of the connecting rod (141) is fixed with a stop block (142).

5. The lifting appliance for the steel truss bridge steel formwork according to claim 1, wherein: fixture (3) sets up the bottom surface of each longeron (12), fixture (3) are including relative two sets of centre gripping subassembly (31) that set up, each centre gripping subassembly (31) are including grip slipper (311) and locking bolt (312), set up centre gripping groove (3114) that supply the steel form to place on grip slipper (311), wear to establish in connecting rod (141) locking bolt (312), wear to establish on grip slipper (311) locking bolt (312), locking bolt (312) and grip slipper (311) threaded connection, the one end of locking bolt (312) penetrates in centre gripping groove (3114) and with the steel form butt.

6. The lifting appliance for the steel truss bridge steel formwork according to claim 5, wherein: one end of the locking bolt (312) penetrating into the clamping groove (3114) is rotatably connected with a pressing plate (3121), and one surface, far away from the locking bolt (312), of the pressing plate (3121) is attached and fixed with an elastic pad.

7. The lifting appliance for the steel truss bridge steel formwork according to claim 5, wherein: fixture (3) still includes adjusting part (33), adjusting part (33) set up on longeron (12), grip slipper (311) are connected with longeron (12) through adjusting part (33), adjusting part (33) are used for adjusting the interval between two grip slipper (311).

8. The lifting appliance for the steel truss bridge steel formwork according to claim 7, wherein: adjusting part (33) are including adjusting motor (331) and two-way screw rod (332), mounting groove (122) have been seted up on longeron (12), two-way screw rod (332) are located mounting groove (122), two-way screw rod (332) rotate with longeron (12) and are connected, two one end that grip slipper (311) are close to longeron (12) is all established on two-way screw rod (332), two grip slipper (311) are opposite with two-way screw rod (332) threaded connection and threaded connection's the direction of turning round, adjusting motor (331) are fixed on longeron (12), adjusting motor (331) are connected with two-way screw rod (332).