A crane for construction engineering

Abstract

The present invention discloses a crane for engineering construction, which relates to the technical field of cranes, including a base and a track, a support arm is fixedly installed on the top of the base, a side groove is opened inside the support arm, a multi-section hydraulic telescopic rod is fixedly installed inside the side groove, a connecting plate is fixedly installed on the output end of the multi-section hydraulic telescopic rod, and a sliding sleeve is fixedly installed on one side of the connecting plate. The beneficial effects of the present invention are as follows: by installing the multi-section hydraulic telescopic rod, the height of the connecting frame can be adjusted according to the height of the hoisted material and the height of the location to be hoisted, so that the length of the hoisting cable can be reduced when hoisting the material, and the length during hoisting can be reduced; by arranging two lifting trolleys for hoisting, a certain pulling force can be formed on the hoisted material, thereby improving the stability of the material when hoisting, effectively avoiding the shaking of the material after being hoisted, and then hoisting can be carried out at a faster moving speed, thereby improving the overall work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of cranes, in particular to a crane for engineering construction. Background Art

[0002] A cable crane is a lifting machine that can move a material-carrying trolley on a load-bearing rope stretched between two brackets. According to the different layout forms of the cable crane, it can be divided into a fixed cable crane, a pendulum cable crane, a translational cable crane, and a radial cable crane. Cable cranes are usually used to lift objects during the construction of water conservancy projects. At present, the height of existing cranes is mostly fixed. When lifting materials, it is necessary to extend the lifting cable to a longer length. After the materials are lifted, due to the long length of the lifting cable, if the moving speed is too fast, the lifted materials will be shaken by inertia to a large extent, which not only increases the danger of lifting, but also seriously affects the efficiency of material lifting, and then there are serious deficiencies. In addition, the daily oiling and maintenance of the existing cable crane cables mostly rely on manual operation by the crane driver. If the cable is not oiled and maintained for a long time, it will affect the service life of the cable. This maintenance method is relatively inconvenient and requires manual operation, which is time-consuming and labor-intensive. Then there are certain deficiencies. For this reason, we propose a crane for engineering construction. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a crane for engineering construction, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above purpose, the present invention is implemented through the following technical solutions: A crane for engineering construction, including a base and a track, a support arm is fixedly installed on the top of the base, a side groove is opened inside the support arm, a multi-section hydraulic telescopic rod is fixedly installed inside the side groove, a connecting plate is fixedly installed on the output end of the multi-section hydraulic telescopic rod, a sliding sleeve is fixedly installed on one side of the connecting plate, a guide rod is fixedly installed on the inner side of the side groove and on one side of the multi-section hydraulic telescopic rod, the sliding sleeve is slidably connected to the guide rod, a top beam is fixedly installed on one side of the sliding sleeve, two lifting trolleys are arranged on the inner side of the top beam, a plurality of connecting frames are fixedly installed on the bottom of the top beam, two drive boxes are fixedly installed on one side of the connecting frame, a slide groove is opened inside the drive box, a motor is fixedly installed on one side of the slide groove, a transmission screw is fixedly installed on the output end of the motor extending to the inside of the slide groove, a sleeve block is threadedly installed on the outer side of the transmission screw, a traction block is fixedly installed on one side of the sleeve block, a through groove is opened inside the traction block, and two traction wheels are rotatably installed on the inner side of the through groove.

[0005] Preferably, a rotating shaft is fixedly installed on both sides of the traction wheel, a transmission groove is opened inside the traction block and on one side of the through groove, one end of the rotating shaft extends to the transmission groove and a transmission gear is fixedly installed inside, a plurality of transmission shafts are rotatably installed inside the transmission groove, a large gear is fixedly installed on the outside of the transmission shaft, a small gear is fixedly installed on the outside of the transmission shaft and on one side of the large gear, one of the large gears is meshed with the transmission gear, and the other plurality of large gears are meshed with the small gears, a storage cavity is opened inside the traction block and on one side of the transmission groove, a reciprocating screw is rotatably installed on the bottom of the storage cavity, and the reciprocating screw One end extends to the interior of the transmission groove, and a driven gear is fixedly installed on the outside of the reciprocating screw and located on the inner side of the transmission groove, and the driven gear is meshed with one of the pinion gears, and a piston plate is threadedly installed on the outside of the reciprocating screw, and a limit rod is fixedly installed inside the storage chamber and below the reciprocating screw, and the piston plate is slidably connected to the limit rod, and two through holes are provided on both sides of the inside of the traction block and located on the top of the storage chamber, and an oil guide hole is provided inside the traction block and located above the through hole, and an oil outlet pipe is fixedly installed inside the through groove and on one side of the oil guide hole, and an oil outlet nozzle is provided on one side of the oil outlet pipe, and the oil outlet nozzle cooperates with the traction wheel.

[0006] Preferably, a lifting cable is provided at the bottom of the lifting trolley, the lifting cable passes through the interior of the through groove, the lifting cable cooperates with the traction wheel, and a hook is fixedly installed at one end of the lifting cable.

[0007] Preferably, wheels are provided on both sides of the lifting trolley, a wheel groove is provided inside the top of the top beam, the wheel cooperates with the wheel groove, a limit plate is fixedly installed on the top of the top beam and on one side of the wheel groove, a buffer cylinder is fixedly installed in the middle of both sides of the lifting trolley, a buffer groove is provided inside the buffer cylinder, a sliding column is slidably installed inside the buffer cylinder, a stop plate is fixedly installed on one end of the sliding column, a spring is installed inside the buffer groove, a mounting frame is fixedly installed on the other end of the sliding column, a guide wheel is rotatably installed on the inner side of the mounting frame, and the guide wheel cooperates with the limit plate.

[0008] Preferably, a feeding pipe is fixedly installed in the middle of the top of the traction block, a sealing cover is provided on the top of the feeding pipe, and the feeding pipe is connected with the interior of the storage cavity.

[0009] Preferably, a one-way valve is arranged inside the through hole.

[0010] Preferably, the bottom of the base is provided with moving wheels, the moving wheels cooperate with the track, and reinforcing brackets are fixedly installed on both sides of the support arm.

[0011] Preferably, a hole cooperating with the guide rod is provided inside the sliding sleeve.

[0012] Preferably, the abutment plate cooperates with a spring, and the abutment plate is slidably connected to the interior of the buffer groove.

[0013] The present invention provides a crane for construction engineering, which has the following beneficial effects:

[0014] 1. The construction crane is equipped with a multi-section hydraulic telescopic rod. The height of the connecting frame can be adjusted according to the height of the hoisted material and the height of the site to be hoisted, so as to reduce the length of the lifting cable and the length of the lifting when hoisting the material. By setting up two lifting trolleys for lifting, a certain pulling force can be formed on the hoisted material, thereby improving the stability of the material during lifting, effectively avoiding the shaking of the material after lifting, and then it can be lifted at a faster moving speed, thereby improving the overall work efficiency.

[0015] 2. The construction crane of the project cooperates with the traction wheel, rotating shaft, transmission groove, transmission gear, transmission shaft, large gear, small gear, storage chamber, reciprocating screw, driven gear, piston plate, limit rod, through hole, oil guide hole, oil outlet pipe and oil outlet nozzle. When the traction wheel is used to pull the suspension cable, if the lubricating oil on the outside of the suspension cable is insufficient and the traction wheel is released and lengthened or shortened, the traction wheel will be driven to rotate, and then the small gear will be driven to rotate through the meshing of the transmission gear and the large gear, and finally the driven gear will be driven to rotate through a small gear to rotate the reciprocating screw, which will drive the piston plate to move through the thread. At the same time of displacement, the lubricating oil in the storage chamber can be squeezed out through the through hole and the oil guide hole, and then the lubricating oil enters the oil outlet pipe and is applied to the outside of the traction wheel through the oil outlet nozzle. When the suspension cable passes by, the lubricating oil will be applied to the outside of the traction wheel, and then the function of automatic lubricating oil application for maintenance can be realized, without manual application and maintenance, and it is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 is a side view of the present invention;

[0018] Figure 3 It is a schematic diagram of the traction block of the present invention pulling the lifting cable to move above the cargo;

[0019] Figure 4 It is a schematic diagram of lifting materials of the present invention;

[0020] Figure 5 It is a side cross-sectional view of the traction block of the present invention;

[0021] Figure 6 It is a partial top view of the drive box of the present invention;

[0022] Figure 7It is a partial top view of the present invention;

[0023] Figure 8 For the present invention Figure 5 A in the enlarged view;

[0024] Fig. 9 For the present invention Figure 5 The enlarged view of point B in the figure;

[0025] Fig.10 For the present invention Figure 7 Enlarged view of point C in the figure.

[0026] In the figure: 1, base; 2, support arm; 3, side groove; 4, multi-section hydraulic telescopic rod; 5, connecting plate; 6, sliding sleeve; 7, guide rod; 8, top beam; 9, connecting frame; 10, drive box; 11, sliding groove; 12, motor; 13, transmission screw; 14, sleeve block; 15, traction block; 16, through groove; 17, traction wheel; 18, rotating shaft; 19, transmission groove; 20, transmission gear; 21, transmission shaft; 22, large gear; 23, small gear; 24, storage chamber; 25, reciprocating screw; 26, from Moving gear; 27, piston plate; 28, limit rod; 29, through hole; 30, oil guide hole; 31, one-way valve; 32, oil outlet pipe; 33, oil outlet nozzle; 34, lifting trolley; 35, lifting cable; 36, hook; 37, wheel; 38, wheel groove; 39, limit plate; 40, buffer cylinder; 41, buffer groove; 42, slide column; 43, stop plate; 44, spring; 45, mounting frame; 46, guide wheel; 47, moving wheel; 48, track; 49, reinforcement bracket; 50, feeding pipe; 51, sealing cover. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] See also Figures 1 to 10The present invention provides a technical solution: a crane for engineering construction, comprising a base 1 and a track 48, a support arm 2 is fixedly installed on the top of the base 1, a side groove 3 is provided inside the support arm 2, a multi-section hydraulic telescopic rod 4 is fixedly installed inside the side groove 3, a connecting plate 5 is fixedly installed on the output end of the multi-section hydraulic telescopic rod 4, a sliding sleeve 6 is fixedly installed on one side of the connecting plate 5, a hole matching with a guide rod 7 is provided inside the sliding sleeve 6, a guide rod 7 is fixedly installed on the inner side of the side groove 3 and on one side of the multi-section hydraulic telescopic rod 4, the sliding sleeve 6 is slidably connected to the guide rod 7, a top beam 8 is fixedly installed on one side of the sliding sleeve 6, two lifting trolleys 34 are arranged on the inner side of the top beam 8, a plurality of connecting frames 9 are fixedly installed on the bottom of the top beam 8, two drive boxes 10 are fixedly installed on one side of the connecting frame 9, and a slide groove 11 is provided inside the drive box 10 A motor 12 is fixedly installed on one side of the slide 11, and a transmission screw 13 is fixedly installed inside the slide 11 at the output end of the motor 12. A sleeve block 14 is threadedly installed on the outer side of the transmission screw 13, and a traction block 15 is fixedly installed on one side of the sleeve block 14. A through groove 16 is opened inside the traction block 15, and two traction wheels 17 are rotatably installed on the inner side of the through groove 16. A lifting cable 35 is arranged at the bottom of the lifting trolley 34, and the lifting cable 35 passes through the interior of the through groove 16. The lifting cable 35 cooperates with the traction wheel 17, and a hook 36 is fixedly installed on one end of the lifting cable 35. The driving box 10, the slide 11, the motor 12, the transmission screw 13 and the sleeve block 14 are used to drive the traction block 15 to move, thereby pulling the lifting cable 35 to move above the material to be lifted. The width of the through groove 16 is relatively wide, which does not affect the inclined lifting of the material by the lifting cable 35.

[0029] A rotating shaft 18 is fixedly installed on both sides of the traction wheel 17, a transmission groove 19 is opened inside the traction block 15 and on one side of the through groove 16, one end of a rotating shaft 18 extends to the inside of the transmission groove 19 and a transmission gear 20 is fixedly installed, a plurality of transmission shafts 21 are rotatably installed inside the transmission groove 19, a large gear 22 is fixedly installed on the outside of the transmission shaft 21, a small gear 23 is fixedly installed on the outside of the transmission shaft 21 and on one side of the large gear 22, a large gear 22 is meshed with the transmission gear 20, and another plurality of large gears 22 are meshed with the small gear 23, a storage chamber 24 is opened inside the traction block 15 and on one side of the transmission groove 19, a reciprocating screw 25 is rotatably installed at the bottom inside the storage chamber 24, one end of the reciprocating screw 25 extends to the inside of the transmission groove 19, a driven gear 26 is fixedly installed on the outside of the reciprocating screw 25 and on the inside of the transmission groove 19, the driven gear 26 is meshed with a small gear 23, and a piston is threadedly installed on the outside of the reciprocating screw 25 The piston plate 27 is provided with a limit rod 28 fixedly installed inside the storage chamber 24 and below the reciprocating screw rod 25. The piston plate 27 is slidably connected to the limit rod 28. Two through holes 29 are provided inside the traction block 15 and on both sides of the top of the storage chamber 24. An oil guide hole 30 is provided inside the traction block 15 and above the through hole 29. An oil outlet pipe 32 is fixedly installed inside the through groove 16 and on one side of the oil guide hole 30. An oil outlet nozzle 33 is provided on one side of the oil outlet pipe 32. The oil outlet nozzle 33 is provided on one side of the oil outlet nozzle 33. 3 cooperates with the traction wheel 17, wherein the function of the plurality of transmission shafts 21, the large gear 22 and the small gear 23 is to reduce the rotation speed of the rotating shaft 18, so as to ensure that the lubricating oil is applied to the outer side of the traction wheel 17 and then to the outer side of the suspension cable 35, so that the lubricating oil can be squeezed out through the oil outlet nozzle 33 and applied to the traction wheel 17, so as to be applied to the suspension cable 35. When the traction wheel 17 and the suspension cable 35 are both covered with the lubricating oil, the suspension cable 35 will not drive the traction wheel 17 to rotate by friction.

[0030] Wheels 37 are provided on both sides of the lifting trolley 34, and a wheel groove 38 is provided inside the top of the top beam 8, and the wheel 37 cooperates with the wheel groove 38. A limit plate 39 is fixedly installed on the top of the top beam 8 and on one side of the wheel groove 38. A buffer cylinder 40 is fixedly installed in the middle of both sides of the lifting trolley 34, and a buffer groove 41 is provided inside the buffer cylinder 40. A sliding column 42 is slidably installed inside the buffer cylinder 40, and a stop plate 43 is fixedly installed at one end of the sliding column 42. The buffer groove 41 is fixedly installed inside. A spring 44 is installed, and the butt plate 43 cooperates with the spring 44. The butt plate 43 is slidably connected to the inside of the buffer groove 41. A mounting frame 45 is fixedly installed on the other end of the slide column 42. A guide wheel 46 is rotatably installed on the inner side of the mounting frame 45. The guide wheel 46 cooperates with the limit plate 39. The function of the limit plate 39, the buffer cylinder 40, the buffer groove 41, the slide column 42, the butt plate 43, the spring 44, the mounting frame 45 and the guide wheel 46 is to reduce shock and buffer the lifting trolley 34 when it moves.

[0031] A one-way valve 31 is provided inside the through hole 29, a feeding pipe 50 is fixedly installed in the middle of the top of the traction block 15, a sealing cover 51 is provided on the top of the feeding pipe 50, and the feeding pipe 50 is communicated with the inside of the storage chamber 24, wherein the feeding pipe 50 is used to add lubricating oil to the storage chamber 24, wherein the one-way valve 31 is used to prevent the lubricating oil in the oil guide hole 30 from flowing back into the storage chamber 24 through the through hole 29 so as to prevent the lubricating oil from effectively flowing out from the oil outlet nozzle 33 and being applied to the traction wheel 17, wherein when it moves to one side, the lubricating oil in the storage chamber 24 will enter the oil guide hole 30 through the through hole 29 on the moving side.

[0032] The bottom of the base 1 is provided with moving wheels 47 , which cooperate with the track 48 , and both sides of the support arm 2 are fixedly mounted with reinforcing brackets 49 .

[0033] In summary, when the construction crane is used, when it is necessary to lift materials, the lifting height can be lowered by adjusting the displacement of the top beam 8 according to the height of the materials through the multi-section hydraulic telescopic rod 4, and then the transmission screw 13 can be driven to rotate by turning on the motor 12, and the transmission screw 13 drives the sleeve block 14 to move through the thread, and then the hook 36 can be pulled to the top of the material to be lifted through the traction block 15, and then the lifting cable 35 is lengthened by the lifting trolley 34 and the hook 36 is hooked with the hook on the material, and then the length of the lifting cable 35 can be shortened by the lifting trolley 34 to lift the material, which is convenient for lifting materials and improves the stability and efficiency of material lifting. When the lifting cable 35 is pulled by the traction wheel 17, the lifting cable 3 If the lubricating oil on the outside is insufficient and the traction wheel 17 is released and extended or shortened, the traction wheel 17 will be driven to rotate, and then the small gear 23 will be driven to rotate through the meshing of the transmission gear 20 and the large gear 22, and finally the driven gear 26 will be driven to rotate through a small gear 23 to rotate the reciprocating screw 25, and then the piston plate 27 will be driven to move through the thread. At the same time, the lubricating oil in the storage chamber 24 can be squeezed out through the through hole 29 and the oil guide hole 30, and then the lubricating oil will enter the oil outlet pipe 32 and be applied to the outside of the traction wheel 17 through the oil outlet nozzle 33. When the suspension cable 35 passes by, the lubricating oil will be applied to the outside of the traction wheel 17, and then the automatic lubricating oil application for maintenance can be realized, without manual application and maintenance, and the use is more convenient.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A crane for construction engineering, comprising a base (1) and a track (48), characterized in that: A support arm (2) is fixedly installed on the top of the base (1), a side groove (3) is provided inside the support arm (2), a multi-section hydraulic telescopic rod (4) is fixedly installed inside the side groove (3), a connecting plate (5) is fixedly installed on the output end of the multi-section hydraulic telescopic rod (4), a sliding sleeve (6) is fixedly installed on one side of the connecting plate (5), a guide rod (7) is fixedly installed on the inner side of the side groove (3) and on one side of the multi-section hydraulic telescopic rod (4), the sliding sleeve (6) is slidably connected to the guide rod (7), a top beam (8) is fixedly installed on one side of the sliding sleeve (6), two lifting trolleys (34) are arranged on the inner side of the top beam (8), and the top beam (8) is fixedly installed on the inner side of the side groove (3). ) is fixedly mounted on the bottom of the transmission mechanism (10), two driving boxes (10) are fixedly mounted on one side of the connecting frame (9), a slide groove (11) is provided inside the driving box (10), a motor (12) is fixedly mounted on one side of the slide groove (11), an output end of the motor (12) extends to the inside of the slide groove (11) and a transmission screw (13) is fixedly mounted thereon, a sleeve block (14) is threadedly mounted on the outer side of the transmission screw (13), a traction block (15) is fixedly mounted on one side of the sleeve block (14), a through groove (16) is provided inside the traction block (15), and two traction wheels (17) are rotatably mounted on the inner side of the through groove (16); A rotating shaft (18) is fixedly installed on both sides of the traction wheel (17); a transmission groove (19) is provided inside the traction block (15) and located on one side of the through groove (16); one end of the rotating shaft (18) extends to the inside of the transmission groove (19) and a transmission gear (20) is fixedly installed; a plurality of transmission shafts (21) are rotatably installed inside the transmission groove (19); a large gear (22) is fixedly installed on the outside of the transmission shaft (21); a small gear (23) is fixedly installed on the outside of the transmission shaft (21) and located on one side of the large gear (22); one of the large gears (22) meshes with the transmission gear (20), and the other plurality of large gears (22) meshes with the small gear (23); a storage chamber (24) is provided inside the traction block (15) and located on one side of the transmission groove (19); a reciprocating screw rod (25) is rotatably installed at the bottom of the storage chamber (24); one end of the reciprocating screw rod (25) extends to the inside of the storage chamber (24) and the transmission groove (16) is provided to the inside of the storage chamber (24). To the inside of the transmission groove (19), a driven gear (26) is fixedly installed on the outside of the reciprocating screw rod (25) and located on the inside of the transmission groove (19), and the driven gear (26) is meshed with one of the pinions (23). A piston plate (27) is threadedly installed on the outside of the reciprocating screw rod (25). A limit rod (28) is fixedly installed inside the storage chamber (24) and located below the reciprocating screw rod (25). The piston plate (27) and the limit rod (28) are connected to each other. The traction block (15) is slidably connected, two through holes (29) are provided inside the traction block (15) and on both sides of the top of the storage cavity (24), an oil guide hole (30) is provided inside the traction block (15) and above the through holes (29), an oil outlet pipe (32) is fixedly installed inside the through groove (16) and on one side of the oil guide hole (30), an oil outlet nozzle (33) is provided on one side of the oil outlet pipe (32), and the oil outlet nozzle (33) cooperates with the traction wheel (17).

2. A construction crane for engineering construction according to claim 1, characterized in that: A suspension cable (35) is provided at the bottom of the lifting trolley (34). The suspension cable (35) passes through the interior of the through slot (16). The suspension cable (35) cooperates with the traction wheel (17). A hook (36) is fixedly installed at one end of the suspension cable (35).

3. The construction crane according to claim 1, characterized in that: Wheels (37) are provided on both sides of the lifting trolley (34), a wheel groove (38) is provided inside the top of the top beam (8), and the wheel (37) cooperates with the wheel groove (38). A limit plate (39) is fixedly installed on the top of the top beam (8) and on one side of the wheel groove (38). Buffer cylinders (40) are fixedly installed in the middle of both sides of the lifting trolley (34), a buffer groove (41) is provided inside the buffer cylinder (40), a sliding column (42) is slidably installed inside the buffer cylinder (40), a stop plate (43) is fixedly installed on one end of the sliding column (42), a spring (44) is installed inside the buffer groove (41), and a mounting frame (45) is fixedly installed on the other end of the sliding column (42), a guide wheel (46) is rotatably installed on the inner side of the mounting frame (45), and the guide wheel (46) cooperates with the limit plate (39).

4. The construction crane according to claim 1, characterized in that: A feeding pipe (50) is fixedly installed in the middle of the top of the traction block (15), a sealing cover (51) is arranged on the top of the feeding pipe (50), and the feeding pipe (50) is connected with the inside of the storage chamber (24).

5. The construction crane according to claim 1, characterized in that: A one-way valve (31) is arranged inside the through hole (29).

6. The construction crane according to claim 1, characterized in that: The bottom of the base (1) is provided with a moving wheel (47), the moving wheel (47) cooperates with a track (48), and both sides of the support arm (2) are fixedly mounted with a reinforcing bracket (49).

7. The construction crane according to claim 1, characterized in that: The interior of the sliding sleeve (6) is provided with a hole which matches with the guide rod (7).

8. The construction crane according to claim 3, characterized in that: The abutment plate (43) cooperates with the spring (44), and the abutment plate (43) is slidably connected to the inside of the buffer groove (41).

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