Lifting device for crane

Abstract

The invention discloses a hoisting device for a crane, and belongs to the technical field of hoisting equipment, the hoisting device comprises an I-shaped base, the surface of the I-shaped base is sleeved with a moving assembly, the bottom of the moving assembly is connected with a bottom plate, the bottom of the bottom plate is connected with a telescopic baffle, and a wire assembly is arranged in the telescopic baffle. The first motor drives the two first bevel gears on the surface of the rotating shaft to rotate, the walking wheels can be driven to rotate under meshing transmission between the first bevel gears and the second bevel gears, and the two walking wheels synchronously rotate to drive the walking wheels to move more stably. The n-shaped movable frame is arranged, and the movable frame is fixedly connected with the bottom plate, so that the bearing effect is better; by arranging the wire guiding assembly, the directions of threads on the surfaces of the two ends of a screw are opposite, a second motor drives the screw to rotate, two sliding blocks can drive wire guiding pieces to move oppositely, steel wire ropes can be arranged in order, and therefore the using effect is better.

Description

Technical Field

[0001] The invention belongs to the technical field of lifting equipment, and in particular relates to a lifting device for a crane. Background Art

[0002] In the modern construction industry, cranes are widely used as an indispensable part, and the lifting device is the main equipment for adjusting the lifting of the crane, and it is also a relatively important component. Cranes refer to multi-action lifting machinery that can vertically lift and horizontally move heavy objects within a certain range. There are many types of cranes, one of which is a gantry crane, also called a gantry crane, which is mainly used for loading and unloading operations in outdoor cargo yards. In order to achieve horizontal movement of heavy objects, there will be a walking mechanism on the main beam of the crane. At the same time, in order to lift heavy objects, there will be a lifting mechanism on the main beam to achieve vertical lifting of the wire rope and hook.

[0003] Chinese patent application No. 202223311526.0 discloses a lifting device for a crane, including an I-shaped base, a mobile bearing mechanism is arranged on the front and rear sides of the I-shaped base, and a lifting mechanism is fixedly arranged below the mobile bearing mechanism. Through the mobile bearing mechanism and the lifting mechanism, the mobile bearing mechanism is used to drive the lifting mechanism to move laterally along the I-shaped base. When encountering crosswind or other external forces during operation, the heavy object will apply a pulling force along the extension direction of the lifting wire rope to the lifting mechanism through the lifting wire rope. The lifting mechanism drives the moving wheel to move in the concave groove in the I-shaped base through the first motor, and the telescopic baffle arranged in the lifting mechanism solves the problem in the prior art that the rigid connection structure is deformed or even broken when the lifting mechanism shakes due to external force or crosswind. The semicircular bearing is arranged to cooperate with the first hydraulic cylinder to achieve emergency parking in an emergency.

[0004] In the above-mentioned public patent, the mobile carrying mechanism is controlled to move on the I-beam base by driving a single running wheel to rotate through a first motor. The single running wheel driving has poor stability and poor control effect. When the lifting mechanism reels the wire rope for lifting, the winding and winding of the wire rope on the surface of the wire rope roller is too chaotic, affecting its use. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a lifting device for a crane, which has the characteristics of stable structure and good use effect.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lifting device for a crane, comprising an I-shaped base, a wheel groove is opened inside the I-shaped base, four walking wheels are arranged inside the wheel groove, a moving component is sleeved on the surface of the I-shaped base, the bottom of the moving component is connected to a bottom plate, the bottom of the bottom plate is connected to a telescopic baffle, a wire component is arranged inside the telescopic baffle, a lifting mechanism is installed on the side of the wire assembly, and an emergency stop mechanism is arranged on the side of the lifting mechanism.

[0007] Preferably, the moving assembly includes a moving frame, bevel gear 1, bevel gear 2, a rotating shaft and motor 1, wherein the moving frame is sleeved on the surface of the I-shaped base, motor 1 is installed on the side of the moving frame, the side of motor 1 is connected to bevel gear 1, the surface of bevel gear 1 is sleeved with two rotating shafts, the side end of one side of the walking wheel is connected to bevel gear 2, and the side edge of bevel gear 2 is tightly meshed with the side edge of the rotating shaft.

[0008] Preferably, a side block is provided on the side of the movable frame, a bearing seat is installed on the side of the side block, and a reinforcement sleeve is provided on the surface of the motor.

[0009] Preferably, a fixing ring is sleeved on the side shaft surface of the traveling wheel inside the mobile frame, and a limited rotation structure is formed between the traveling wheel and the fixing ring.

[0010] Preferably, the wire assembly includes a fixed seat, a second motor, a wire member, a slider and a screw, wherein a fixed seat is arranged inside the telescopic baffle, a slide groove is opened inside the fixed seat, a second motor is installed on the side of the fixed seat, a screw is connected to the side of the second motor, two sliders are sleeved on the surface of the screw, and the side ends of the sliders are connected to the wire member.

[0011] Preferably, the threads of the surfaces at both ends of the screw rod inside the slide groove are in opposite directions, and the two sliders are symmetrical to each other in the internal positions of the slide groove.

[0012] Preferably, the surface of the sliding block is tightly fitted with the inner wall of the sliding groove, and a horizontal plate is installed on the side of the fixing seat, and the two ends of the horizontal plate are respectively connected to the inner walls on both sides of the telescopic baffle.

[0013] Preferably, a wire hole is provided at a side end of the wire guide, and the wire holes of the two wire guides are respectively located on both sides of the lifting mechanism.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention sets a moving component, and the motor drives the two bevel gears on the surface of the rotating shaft to rotate. Under the meshing transmission between the bevel gears 1 and 2, the bevel gears 2 can drive the running wheels to rotate. The synchronous rotation of the two running wheels drives the lifting mechanism to move, so that the device can move more smoothly and efficiently.

[0016] 2. The present invention sets an n-shaped moving frame, which is connected and fixed to the base plate to achieve better load-bearing effect and higher structural strength. The reinforcement sleeve has a positioning and reinforcement effect on the motor, and the bearing seat on the side block limits the rotating shaft to make the overall transmission structure more stable.

[0017] 3. The present invention sets a conductor assembly, and motor 2 drives the screw to rotate. Under the meshing connection between the screw and the slider, the slide groove limits the slider, and the slider can move within the slide groove. Because the threads on the surfaces at both ends of the screw are in opposite directions, the two sliders will respectively drive the conductor to move toward each other, so that the wire ropes can be arranged neatly, thereby improving the use effect of the crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the present invention;

[0019] Figure 2 It is a front view of the mobile assembly of the present invention;

[0020] Figure 3 It is a cross-sectional view of the mobile frame of the present invention;

[0021] Figure 4 It is a front view of the wire assembly of the present invention;

[0022] Figure 5 It is a cross-sectional view of the fixing seat of the present invention.

[0023] In the figure: 1. I-beam base; 2. Moving assembly; 21. Moving frame; 22. Side block; 23. Bearing seat; 24. Bevel gear one; 25. Bevel gear two; 26. Rotating shaft; 27. Reinforcement sleeve; 28. Motor one; 29. ​​Fixed ring; 3. Bottom plate; 4. Telescopic baffle; 5. Wire assembly; 51. Fixed seat; 52. Cross plate; 53. Motor two; 54. Wire member; 55. Slide groove; 56. Sliding block; 57. Screw; 6. Lifting mechanism; 7. Wheel groove; 8. Traveling wheel; 9. Emergency stop mechanism. DETAILED DESCRIPTION

[0024] 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.

[0025] Example 1

[0026] See also Figure 1-5The present invention provides the following technical solutions: A lifting device for a crane comprises an I-shaped base 1, a wheel groove 7 is provided inside the I-shaped base 1, four traveling wheels 8 are arranged inside the wheel groove 7, a moving component 2 is sleeved on the surface of the I-shaped base 1, a bottom plate 3 is connected to the bottom of the moving component 2, a telescopic baffle 4 is connected to the bottom of the bottom plate 3, a wire component 5 is arranged inside the telescopic baffle 4, a lifting mechanism 6 is installed on the side of the wire component 5, and an emergency stop mechanism 9 is arranged on the side of the lifting mechanism 6.

[0027] Specifically, the moving assembly 2 includes a moving frame 21, a bevel gear 1 24, a bevel gear 25, a rotating shaft 26 and a motor 1 28. The surface of the I-shaped base 1 is sleeved with the moving frame 21, and the side of the moving frame 21 is installed with a motor 1 28. The side of the motor 1 28 is connected to a bevel gear 1 24. The surface of the bevel gear 1 24 is sleeved with two rotating shafts 26. The side end of one side walking wheel 8 is connected to a bevel gear 25, and the side edge of the bevel gear 25 is tightly meshed with the side edge of the rotating shaft 26.

[0028] By adopting the above technical solution, the starting motor 28 drives the two bevel gears 26 on the surface of the rotating shaft 24 to rotate. Under the meshing transmission between the bevel gear 25 and the bevel gear 2 26, the bevel gear 2 25 can drive the running wheel 8 to rotate. The synchronous rotation of the two running wheels 8 drives the lifting mechanism 6 to move, which can make the movement of the device more stable and efficient.

[0029] Specifically, a side block 22 is provided on the side of the moving frame 21, a bearing seat 23 is installed on the side of the side block 22, and a reinforcement sleeve 27 is provided on the surface of the motor 28.

[0030] By adopting the above technical solution, the reinforcing sleeve 27 plays a role in positioning and reinforcing the motor 28, and the bearing seat 23 on the side block 22 limits the rotating shaft 24, which can make the overall structure more stable.

[0031] Specifically, a fixing ring 29 is sleeved on the side shaft surface of the traveling wheel 8 inside the moving frame 21 , and a limited rotation structure is formed between the traveling wheel 8 and the fixing ring 29 .

[0032] By adopting the above technical solution, the rotation limit between the fixed ring 29 and the movable frame 21 can limit the self-rotation of the bevel gear 26, and the tight engagement between the bevel gear 1 25 and the bevel gear 2 26 can achieve a better transmission control effect.

[0033] When this embodiment is used, the starting motor 28 drives the two bevel gears 1 26 on the surface of the rotating shaft 24 to rotate. Under the meshing transmission between the bevel gear 1 25 and the bevel gear 2 26, the fixed ring 29 and the movable frame 21 are rotated and limited, and the bevel gear 2 25 can drive the walking wheel 8 to rotate. The synchronous rotation of the two walking wheels 8 drives the lifting mechanism 6 to move, which can make the movement of the device more stable and efficient. The reinforcement sleeve 27 plays a positioning and reinforcement role for the motor 1 28, and the bearing seat 23 on the side block 22 limits the rotating shaft 24, so that the bevel gear 1 25 and the bevel gear 2 26 are closely meshed, so that the transmission control effect is better. The lifting mechanism 6 can lift and hoist the object through the hook by retracting and releasing the wire rope. The telescopic baffle 4 can block the lateral wind. The emergency stop mechanism 9 can quickly stop the operation of the lifting mechanism 6 when a failure occurs.

[0034] Example 2

[0035] The present embodiment is different from the embodiment 1 in that the conductor assembly 5 comprises a fixing seat 51, a second motor 53, a conductor member 54, a slider 56 and a screw 57; the fixing seat 51 is arranged inside the telescopic baffle 4; a slide groove 55 is arranged inside the fixing seat 51; a second motor 53 is installed on the side of the fixing seat 51; a screw 57 is connected to the side of the second motor 53; two sliders 56 are sleeved on the surface of the screw 57; and the side ends of the sliders 56 are connected to the conductor member 54.

[0036] Specifically, the threads of the two end surfaces of the screw rod 57 inside the slide groove 55 are in opposite directions, and the two sliders 56 are symmetrical to each other in the inner positions of the slide groove 55 .

[0037] By adopting the above technical solution, the second motor 53 is started to drive the screw 57 to rotate. Under the meshing connection between the screw 57 and the slider 56, the slider 56 can move within the slide groove 55. Because the threads on the two end surfaces of the screw 57 are in opposite directions, the two sliders 56 will respectively drive the wire guide 54 to move towards each other, and the movement of the wire guide 54 can guide the wire rope.

[0038] Specifically, the surface of the slider 56 is tightly fitted with the inner wall of the slide groove 55 , and a horizontal plate 52 is installed on the side of the fixing seat 51 , and both ends of the horizontal plate 52 are respectively connected to the inner walls of the telescopic baffle 4 on both sides.

[0039] By adopting the above technical solution, the slide groove 55 limits the slider 56 so that the slider 56 can move in a limited position, and the slider 56 can drive the wire member 54 to move smoothly, thereby better guiding the wire rope.

[0040] Specifically, a wire hole is formed at the side end of the wire member 54 , and the wire holes of the two wire members 54 are respectively located on both sides of the lifting mechanism 6 .

[0041] By adopting the above technical solution, the steel wire rope inside the lifting mechanism 6 passes through the guide wire 54. When the lifting mechanism 6 is in operation, the guide wire 54 moves synchronously to allow the steel wire rope to be evenly and neatly wound around the rope roller of the lifting mechanism 6.

[0042] When this embodiment is used, the second motor 53 is started to drive the screw 57 to rotate. Under the meshing connection between the screw 57 and the slider 56, the slide groove 55 limits the slider 56, and the slider 56 can move within the limited position inside the slide groove 55. Because the threads on the two end surfaces of the screw 57 are in opposite directions, the two sliders 56 will respectively drive the wire members 54 to move toward each other, and the wire rope inside the lifting mechanism 6 passes through the wire member 54. When the lifting mechanism 6 is running, the wire member 54 moves synchronously, which can make the wire rope evenly and neatly wound around the rope roller of the lifting mechanism 6, and the wire rope can be arranged neatly, so that the use effect of the crane is better.

[0043] The motor 28 in the present invention is an existing publicly available technology, and the selected model is Z2D15W;

[0044] The motor 2 53 in the present invention is an existing disclosed technology, and the selected model is KM040F17RN.

[0045] The structure and use principle of the I-beam base 1, bottom plate 3, telescopic baffle 4, lifting mechanism 6, wheel groove 7, running wheel 8 and emergency stop mechanism 9 in the present invention have been disclosed in a lifting device for a crane disclosed in Chinese patent application No. 202223311526.0. Its working principle is to control a running wheel 8 to rotate in the wheel groove 7 of the I-beam base 1 by a driving device, so as to drive the bottom plate 3 to move and adjust its position. The lifting mechanism 6 can lift and hoist the object through the hook by retracting and releasing the wire rope. The telescopic baffle 4 can block the lateral wind. The emergency stop mechanism 9 can quickly stop the operation of the lifting mechanism 6 when a failure occurs.

[0046] Working principle and use process of the present invention: When the present invention is used, the motor 1 28 is started to drive the two bevel gears 1 26 on the surface of the rotating shaft 24 to rotate. Under the meshing transmission between the bevel gear 1 25 and the bevel gear 2 26, the fixed ring 29 and the moving frame 21 are rotated and limited, and the bevel gear 2 25 can drive the walking wheel 8 to rotate. The synchronous rotation of the two walking wheels 8 drives the lifting mechanism 6 to move, which can make the movement of the device more stable and efficient. The reinforcement sleeve 27 has a positioning and reinforcement effect on the motor 1 28, and the bearing seat 23 on the side block 22 limits the rotating shaft 24, which can make the bevel gear 1 25 and the bevel gear 2 26 tightly meshed, so as to achieve better transmission control effect. The lifting mechanism 6 can use the hook to lift the object by retracting and releasing the wire rope. During the lifting and hoisting, the telescopic baffle 4 can block the lateral wind, and the emergency stop mechanism 9 can quickly stop the operation of the lifting mechanism 6 when a fault occurs. The starting motor 53 drives the screw 57 to rotate. Under the meshing connection between the screw 57 and the slider 56, the slide 55 limits the slider 56, and the slider 56 can move within the slide 55. Because the threads on the surfaces at both ends of the screw 57 are in opposite directions, the two sliders 56 will respectively drive the wire member 54 to move toward each other, and the wire rope inside the lifting mechanism 6 passes through the wire member 54. When the lifting mechanism 6 is running, the wire member 54 moves synchronously, which can make the wire rope evenly and neatly wound around the rope roller of the lifting mechanism 6, so that the wire rope can be arranged neatly, thereby improving the use effect of the crane.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting device for a crane, comprising an I-shaped base, characterized in that: A wheel groove is opened inside the I-shaped base, four walking wheels are arranged inside the wheel groove, a moving component is sleeved on the surface of the I-shaped base, the bottom of the moving component is connected to a base plate, the bottom of the base plate is connected to a telescopic baffle, a wire component is arranged inside the telescopic baffle, a lifting mechanism is installed on the side of the wire assembly, and an emergency stop mechanism is arranged on the side of the lifting mechanism.

2. A lifting device for a crane according to claim 1, characterized in that: The moving assembly includes a moving frame, bevel gear 1, bevel gear 2, a rotating shaft and motor 1, wherein the moving frame is sleeved on the surface of the I-shaped base, motor 1 is installed on the side of the moving frame, bevel gear 1 is connected to the side of motor 1, two rotating shafts are sleeved on the surface of bevel gear 1, the side end of one side of the walking wheel is connected to bevel gear 2, and the side edge of bevel gear 2 is tightly meshed with the side edge of the rotating shaft.

3. A lifting device for a crane according to claim 2, characterized in that: The side of the movable frame is provided with a side block, the side of the side block is installed with a bearing seat, and the surface of the motor 1 is provided with a reinforcement sleeve.

4. A lifting device for a crane according to claim 2, characterized in that: A fixing ring is sleeved on the side shaft surface of the traveling wheel inside the moving frame, and a limited rotation structure is provided between the traveling wheel and the fixing ring.

5. A lifting device for a crane according to claim 1, characterized in that: The wire assembly includes a fixed seat, a second motor, a wire member, a slider and a screw, wherein a fixed seat is arranged inside the telescopic baffle, a slide groove is opened inside the fixed seat, a second motor is installed on the side of the fixed seat, a screw is connected to the side of the second motor, two sliders are sleeved on the surface of the screw, and the side ends of the sliders are connected to the wire member.

6. A hoisting device for a crane according to claim 5, characterized in that: The threads of the surfaces at both ends of the screw rod inside the slide groove are in opposite directions, and the two sliders are symmetrical to each other in the internal positions of the slide groove.

7. A hoisting device for a crane according to claim 5, characterized in that: The surface of the sliding block is tightly fitted with the inner wall of the sliding groove, and a horizontal plate is installed on the side of the fixing seat, and the two ends of the horizontal plate are respectively connected with the inner walls on both sides of the telescopic baffle.

8. A hoisting device for a crane according to claim 5, characterized in that: A wire hole is provided at the side end of the wire member, and the wire holes of the two wire members are respectively located on both sides of the lifting mechanism.

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