Horizontal limiting device for high-altitude hoisting operation

Abstract

The utility model belongs to the technical field of hoisting balance, and particularly relates to a horizontal limiting device for high-altitude hoisting operation, a plurality of groups of steel wire ropes jointly act on the top of a balance limiting frame and finish stable lifting of the balance limiting frame at the bottom, a hoisting material is suspended under the clamping of wear-resistant clamping plates on two sides, and then a worker can pull out a hook on one side to lift the hoisting material. The fiber lifting belts penetrate through the bottom of the material and are hung in the hooks on the other side, and auxiliary supporting of the lifted material is completed through cooperation of the multiple sets of fiber lifting belts, so that balance is enhanced; under the cooperation of a thread face of the bidirectional screw and a lead screw with a built-in thread groove, the movable support at the bottom can synchronously and relatively move along the hole opening face of the through hole, the outer side of the auxiliary bracket abuts against the two ends of a material, and meanwhile, the operating hydraulic cylinder drives the connecting rod to drive the material to move. And the connecting rods push respective wear-resistant clamping plates to be relatively close to each other and tightly attached to the end faces of the materials, so that the materials of different sizes are firmly clamped by the device.

Description

Technical Field

[0001] The utility model belongs to the technical field of hoisting balance, and in particular relates to a horizontal limiting device for high-altitude hoisting operations. Background Art

[0002] The most widely used vertical transportation and hoisting equipment in construction projects is the tower crane, commonly known as the tower crane. The main advantages of the equipment are beautiful appearance, stability and reliability, light weight of the lifting arm, adjustable length, fast lifting speed, easy operation, low failure rate, and simple maintenance.

[0003] After searching, the publication number: CN211846844U announced a balancing device for tower crane hoisting materials. In the utility model, the hoisting steel wire is passed through two fixed rings, so that during the hoisting process, the material will not slide sideways and fall and injure people due to instability at both ends. The spacing between the hoisting steel wires on both sides can also be controlled as needed to avoid the hoisting steel wires from getting entangled and knotted in the air, making the hoisting process safer and not reducing the hoisting efficiency due to the entanglement of the steel wires. Although this device has a certain balancing effect, the adjustable surface of this device is narrow for hoisting materials of different sizes, and the traditional grid will swing horizontally during the hoisting process, and the balance is general.

[0004] Therefore, a horizontal limit device for high-altitude lifting operations is designed to solve the above problems. Utility Model Content

[0005] To solve the problems raised in the above background technology. The utility model provides a horizontal limit device for high-altitude hoisting operations. When the device is in use, multiple sets of steel wire ropes can be intertwined with the slewing ring. Under the action of the crane, multiple sets of steel wire ropes act together on the top of the balance limit frame and complete the stable lifting of the bottom balance limit frame. Under the clamping of the wear-resistant splints on both sides, the hoisting material is suspended in the air. After that, the staff can pull out the hook on one side, pass the fiber hoisting belt from the bottom of the material and hang it in the hook on the other side, and cooperate with multiple sets of fiber hoisting belts to complete the auxiliary support of the hoisting material, thereby enhancing the balance.

[0006] Before lifting, according to the different sizes of the materials, the outer stepper motor can be started through the control end, and its motor shaft drives the bidirectional screw to rotate. The two sets of linear shafts on the outside pass through the interior of the positioning seat to prevent the positioning seat from rotating. The thread surface of the bidirectional screw and the screw with the built-in thread groove cooperate with each other, so that the movable bracket at the bottom can move synchronously relative to the opening surface of the through hole, and the outer side of the auxiliary bracket rests on both ends of the material. At the same time, the running hydraulic cylinder drives the connecting rod, and the connecting rod pushes the respective wear-resistant splints to be relatively close and tightly fit on the end surface of the material, thereby completing the secure clamping of materials of different sizes by this device.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a horizontal limit device for high-altitude lifting operations, including an auxiliary limit mechanism, the auxiliary limit mechanism includes a balance limit frame, a slewing ring, a positioning seat, a movable bracket and a limit assembly, the top of the balance limit frame is fixedly connected to the bottom end of the slewing ring, the positioning seat is slidably sleeved on the inner side of the balance limit frame, the movable bracket is fixedly connected to the bottom of the positioning seat, and the limit assembly is fixedly connected to the opposite side of the movable bracket.

[0008] As a preferred embodiment of the horizontal limiting device for high-altitude lifting operations of the utility model, the slewing rings are provided in a plurality of groups, and the plurality of groups of slewing rings are arranged at equal intervals on the top of the balancing limiting frame.

[0009] As a preferred horizontal limit device for high-altitude lifting operations of the utility model, the limit assembly includes an auxiliary bracket, a hydraulic cylinder, a connecting rod and a wear-resistant splint, the hydraulic cylinder is threadedly connected to the top of the auxiliary bracket, the top of the connecting rod is fixedly connected to the piston end of the hydraulic cylinder, and the middle part of the top end of the wear-resistant splint is fixedly connected to the bottom end of the connecting rod.

[0010] As a preferred horizontal limit device for high-altitude lifting operations of the utility model, a hook and a fiber lifting belt are also provided at the bottom of the balance limit frame, both ends of the fiber lifting belt are fixedly connected to one side of the hook, and the hook is clamped on the bottom of the balance limit frame.

[0011] As a preferred horizontal limit device for high-altitude lifting operations of the utility model, a stepper motor, a bidirectional screw and a linear shaft are also arranged on the inner side of the balance limit frame. The motor shaft of the stepper motor is fixedly connected to one end of the bidirectional screw through a coupling, and the linear shaft is fixedly connected to the inner side of the balance limit frame.

[0012] As a preferred embodiment of the horizontal limiting device for high-altitude lifting operations of the utility model, the interior of the positioning seat is respectively penetrated by thread grooves and through holes that are compatible with the sizes of the bidirectional screw and the linear shaft.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, multiple groups of steel wire ropes can be intertwined with the slewing ring. Under the action of the crane, the multiple groups of steel wire ropes work together on the top of the balance limit frame and complete the stable lifting of the bottom balance limit frame. Under the clamping of the wear-resistant splints on both sides, the hoisting material is suspended in the air. After that, the staff can pull out the hook on one side, pass the fiber lifting belt from the bottom of the material and hang it in the hook on the other side, and cooperate with multiple groups of fiber lifting belts to complete the auxiliary support of the hoisting material, thereby enhancing the balance.

[0015] 2. In the utility model, with the cooperation of the thread surface of the bidirectional screw and the screw with the built-in thread groove, the movable bracket at the bottom can move synchronously relative to the opening surface of the through hole, and the outer side of the auxiliary bracket abuts against the two ends of the material. At the same time, the running hydraulic cylinder drives the connecting rod, and the connecting rod pushes the respective wear-resistant splints to be relatively close and tightly fit on the end surface of the material, thereby completing the secure clamping of materials of different sizes by this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the bottom of the auxiliary limiting mechanism in the utility model;

[0019] Figure 3 This is a bottom view of the inner side of the balance limit frame in the utility model;

[0020] Figure 4 It is the distribution diagram of the thread groove in the utility model;

[0021] In the figure:

[0022] 1. Auxiliary limit mechanism; 11. Balance limit frame; 12. Rotating lifting ring; 13. Positioning seat; 14. Movable bracket; 15. Limit assembly; 151. Auxiliary bracket; 152. Hydraulic cylinder; 153. Connecting rod; 154. Wear-resistant splint; 2. Hook; 3. Fiber lifting belt; 4. Stepper motor; 5. Bidirectional screw; 6. Linear shaft; 7. Thread groove; 8. Through hole; 9. Elastic support rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 As shown:

[0025] The horizontal limit device for high-altitude lifting operations is known from CN211846844U. The steel wire used for lifting is passed through two fixed rings. In this way, during the lifting process, the material will not slide sideways and fall and injure people due to instability at both ends. The spacing between the lifting steel wires on both sides can also be controlled as needed to avoid the lifting steel wires from being entangled and knotted in the air, making the lifting process safer and not reducing the lifting efficiency due to the entanglement of the steel wires. Although this device has a certain balancing effect, the adjustable surface of this device is narrow for lifting materials of different sizes, and the traditional grid will swing horizontally during the lifting process, and the balance is average. On this basis, an auxiliary limit mechanism 1 is added.

[0026] like Figure 1 , Figure 2 and Figure 3 As shown:

[0027] In an optional embodiment: the auxiliary limiting mechanism 1 includes a balancing limiting frame 11, a slewing ring 12, a positioning seat 13, a movable bracket 14 and a limiting assembly 15. The top of the balancing limiting frame 11 is fixedly connected to the bottom end of the slewing ring 12, the positioning seat 13 is slidably sleeved on the inner side of the balancing limiting frame 11, the movable bracket 14 is fixedly connected to the bottom of the positioning seat 13, the limiting assembly 15 is fixedly connected to the opposite side of the movable bracket 14, the slewing ring 12 is provided with several groups, and several groups of slewing rings 12 are arranged at equal intervals on the top of the balancing limiting frame 11, and the bottom of the balancing limiting frame 11 is also provided with a hook 2 and a fiber lifting belt 3, the two ends of the fiber lifting belt 3 are fixedly connected to one side of the hook 2, and the hook 2 is clamped at the bottom of the balancing limiting frame 11.

[0028] In this embodiment: multiple groups of steel wire ropes can be intertwined with the slewing ring 12. Under the action of the crane, the multiple groups of steel wire ropes work together on the top of the balance limit frame 11 and complete the stable lifting of the bottom balance limit frame 11. Under the clamping of the wear-resistant splints 154 on both sides, the hoisting material is suspended in the air. After that, the staff can pull out the hook 2 on one side, pass the fiber lifting belt 3 from the bottom of the material and hang it in the hook 2 on the other side, and cooperate with the multiple groups of fiber lifting belts 3 to complete the auxiliary support of the hoisting material, thereby enhancing the balance.

[0029] More specifically:

[0030] like Figure 1 , Figure 3 and Figure 4 As shown:

[0031] In an optional embodiment: the limit assembly 15 includes an auxiliary bracket 151, a hydraulic cylinder 152, a connecting rod 153 and a wear-resistant splint 154, the hydraulic cylinder 152 is threadedly connected to the top of the auxiliary bracket 151, the top of the connecting rod 153 is fixedly connected to the piston end of the hydraulic cylinder 152, the middle of the top end of the wear-resistant splint 154 is fixedly connected to the bottom end of the connecting rod 153, and a stepper motor 4, a bidirectional screw 5 and a linear shaft 6 are also arranged on the inner side of the balancing limit frame 11. The motor shaft of the stepper motor 4 is fixedly connected to one end of the bidirectional screw 5 through a coupling, and the linear shaft 6 is fixedly connected to the inner side of the balancing limit frame 11. The interior of the positioning seat 13 is respectively penetrated by threaded grooves 7 and through holes 8 that are compatible with the sizes of the bidirectional screw 5 and the linear shaft 6.

[0032] In this embodiment: before lifting, according to the different sizes of the materials, the outer stepper motor 4 can be started through the control end, and its motor shaft drives the bidirectional screw 5 to rotate. The two sets of linear shafts 6 on the outer side pass through the interior of the positioning seat 13 to prevent the positioning seat 13 from rotating. With the cooperation of the thread surface of the bidirectional screw 5 and the screw with the built-in thread groove 7, the movable bracket 14 at the bottom can move synchronously relative to the opening surface of the through hole 8, and the outer side of the auxiliary bracket 151 abuts against the two ends of the material. At the same time, the running hydraulic cylinder 152 drives the connecting rod 153, and the connecting rod 153 pushes the respective wear-resistant clamping plates 154 to be relatively close and tightly fit on the end surface of the material, thereby completing the secure clamping of materials of different sizes by this device.

[0033] It should be noted that the elastic support rods 9 on both sides of the connecting rod 153 can play a role in displacement compensation when the wear-resistant clamping plate 154 moves to prevent deviation.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A horizontal limit device for high-altitude hoisting operation, comprising an auxiliary limit mechanism (1), characterized in that: The auxiliary limiting mechanism (1) comprises a balancing limiting frame (11), a slewing ring (12), a positioning seat (13), a movable bracket (14) and a limiting assembly (15); the top of the balancing limiting frame (11) is fixedly connected to the bottom of the slewing ring (12); the positioning seat (13) is slidably sleeved on the inner side of the balancing limiting frame (11); the movable bracket (14) is fixedly connected to the bottom of the positioning seat (13); and the limiting assembly (15) is fixedly connected to the opposite side of the movable bracket (14).

2. The horizontal limit device for high-altitude hoisting operation according to claim 1 is characterized in that: The slewing rings (12) are provided in a plurality of groups, and the plurality of groups of slewing rings (12) are arranged at equal intervals on the top of the balancing limit frame (11).

3. The horizontal limit device for high-altitude hoisting operation according to claim 1 is characterized in that: The limiting assembly (15) comprises an auxiliary bracket (151), a hydraulic cylinder (152), a connecting rod (153) and a wear-resistant clamping plate (154); the hydraulic cylinder (152) is threadedly connected to the top of the auxiliary bracket (151); the top of the connecting rod (153) is fixedly connected to the piston end of the hydraulic cylinder (152); and the middle of the top end of the wear-resistant clamping plate (154) is fixedly connected to the bottom end of the connecting rod (153).

4. The horizontal limit device for high-altitude hoisting operation according to claim 1 is characterized in that: A hook (2) and a fiber lifting belt (3) are also provided at the bottom of the balancing limit frame (11); two ends of the fiber lifting belt (3) are fixedly connected to one side of the hook (2); and the hook (2) is clamped on the bottom of the balancing limit frame (11).

5. The horizontal limit device for high-altitude hoisting operation according to claim 4 is characterized in that: A stepper motor (4), a bidirectional screw (5) and a linear shaft (6) are also arranged on the inner side of the balancing limit frame (11); the motor shaft of the stepper motor (4) is fixedly connected to one end of the bidirectional screw (5) via a coupling, and the linear shaft (6) is fixedly connected to the inner side of the balancing limit frame (11).

6. The horizontal limit device for high-altitude hoisting operation according to claim 5 is characterized in that: The interior of the positioning seat (13) is penetrated by a thread groove (7) and a through hole (8) respectively matching the sizes of the bidirectional screw (5) and the linear shaft (6).

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