Special lifting appliance for carrying rolls

Abstract

The utility model relates to the technical field of carrying tools, in particular to a special lifting appliance for carrying rolls, which comprises a fixing frame, clamping arms are rotatably mounted at four corners of the fixing frame, a hydraulic working station is arranged at the top of the fixing frame, an equal-height sleeve is inserted in the center of the top of the fixing frame, a shaft rod is mounted in the equal-height sleeve in a vertical sliding manner, and a lifting rod is mounted in the shaft rod. A first telescopic rod, a second telescopic rod, a third telescopic rod and a fourth telescopic rod are evenly arranged at the top end of the equal-height sleeve in the axial direction and hinged to the top ends of the clamping arms at the four corners of the fixing frame in a one-to-one correspondence mode. The hydraulic work station is used for driving the first telescopic rod, the second telescopic rod, the third telescopic rod and the fourth telescopic rod, a seesaw type connecting structure of the clamping arm can apply large synchronous clamping force under the cooperation of the hydraulic work station, the first telescopic rod, the second telescopic rod, the third telescopic rod and the fourth telescopic rod, and the barreled objects can be clamped conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of handling tools, and particularly relates to a special sling for handling rolls. Background Art

[0002] A paper roll handling crane is a device specifically designed for handling and loading heavy paper rolls. Its design background is mainly due to the need of modern paper mills and paper product processing plants for efficient, safe and reliable paper roll handling tools. In the traditional paper roll handling process, people usually use manual forklifts or simple mechanical forklifts for operation. However, these methods are not only inefficient but also very difficult for handling heavy paper rolls. In addition, due to the fragility and weight characteristics of paper rolls, traditional methods often have safety hazards and are prone to paper roll damage and personnel injuries. Therefore, to solve these problems, the paper roll handling crane came into being. This crane is designed with advanced mechanical technology and modern technological processes, and can efficiently, safely and reliably complete the handling and loading tasks of paper rolls. The main design features of the paper roll handling crane include high lifting torque, stable operation, flexible operation, and good durability and maintainability. Among them, high lifting torque is the key factor to ensure that the crane can smoothly lift and handle heavy paper rolls; stable operation ensures that the crane will not tip over or be damaged due to vibration or other factors during the handling process; flexible operation can improve the handling efficiency of the crane and reduce the labor input; good durability and maintainability are the keys to ensuring the long-term stable operation of the crane. In short, the design background of the paper roll handling crane is mainly to solve the problems of efficient, safe and reliable paper roll handling faced by modern paper mills and paper product processing plants, and to achieve the efficient, safe and reliable handling and loading of paper rolls through advanced mechanical technology and modern technological processes.

[0003] The above-mentioned prior art solutions have the following defects: it is not conducive to clamping barrel-shaped objects, cannot apply a large clamping force, and cannot achieve synchronous clamping actions in multiple axial directions Summary of the Utility Model

[0004] The purpose of the utility model is to provide a special sling for handling rolls to solve the problems existing in the above-mentioned prior art.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A special lifting tool for handling rolls, including a fixed frame. Clamping arms are rotatably installed at the four corners of the fixed frame. A hydraulic workstation is arranged at the top of the fixed frame. An equal-height sleeve is inserted into the center of the top of the fixed frame. A shaft rod is slidably installed up and down in the equal-height sleeve. A bearing is sleeved at the top end of the shaft rod, and the top end of the shaft rod is located at the top of the equal-height sleeve. A connecting plate is sleeved on the outer ring of the bearing. First telescopic rods, second telescopic rods, third telescopic rods, and fourth telescopic rods are axially and evenly arranged at the top end of the equal-height sleeve. The first telescopic rod, the second telescopic rod, the third telescopic rod, and the fourth telescopic rod are respectively hinged to the top ends of the clamping arms at the four corners of the fixed frame, and the first telescopic rod, the second telescopic rod, the third telescopic rod, and the fourth telescopic rod are all hinged to the top end of the equal-height sleeve. Four corners of the periphery of the connecting plate are all installed with first rotating shafts with vertical axes. A second rotating shaft with a vertical axis is arranged at the top of each clamping arm. Positioning walls are rotatably sleeved on the first rotating shafts, and the other ends of the positioning walls are respectively rotatably sleeved on the second rotating shafts. The hydraulic workstation is used to drive the first telescopic rod, the second telescopic rod, the third telescopic rod, and the fourth telescopic rod.

[0007] By adopting the above technical solution, the seesaw-like connection structure of the clamping arms can apply a synchronous and relatively large clamping force under the cooperation of the hydraulic workstation and the first telescopic rod, the second telescopic rod, the third telescopic rod, and the fourth telescopic rod, which is convenient for clamping barrel-shaped objects.

[0008] In a further embodiment, fixing blocks are arranged on the centripetal sides of the bottom ends of the clamping arms, and the fixing blocks are fixedly hinged to the clamping arms.

[0009] In a further embodiment, the fixing block is composed of an arc-shaped plate, a connecting ear, and a plurality of structural reinforcing plates welded together. The connecting ear is arranged on the centrifugal side of the arc-shaped plate. A through hole penetrating horizontally is arranged on the connecting ear. The plurality of structural reinforcing plates are used to strengthen the connection structure between the connecting ear and the arc-shaped plate.

[0010] By adopting the above technical solution, the fixing plate can better fit the outer wall of the roll-like part, realizing the clamping of the roll-like part.

[0011] In a further embodiment, a plurality of weight-reducing holes are evenly arranged at equal intervals from top to bottom on the clamping arms.

[0012] By adopting the above technical solution, the weight of the clamping arms is reduced, realizing lightweight design, and the overall operation energy consumption of the equipment can be reduced.

[0013] In a further embodiment, a through groove penetrating horizontally is arranged on the fixed frame. A plurality of guide wheels are fixedly installed at the top of the fixed frame, and the plurality of guide wheels are arranged at equal intervals along the length direction of the through groove.

[0014] By adopting the above technical solution, the guide wheel can realize the hoisting of the whole device, which is convenient for use in various scenarios.

[0015] In a further embodiment, the guide wheels at both ends are rotatably mounted on the outside of the fixed frame through brackets.

[0016] By adopting the above technical solution.

[0017] In summary, the present utility model has the following beneficial effects:

[0018] 1. Through the seesaw-like connection structure of the clamping arms, a large synchronous clamping force can be applied in cooperation with the hydraulic workstation, the first telescopic rod, the second telescopic rod, the third telescopic rod and the fourth telescopic rod, which is convenient for the clamping effect of barreled objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model.

[0020] In the figure, 1, fixed frame; 2, clamping arm; 3, hydraulic workstation; 4, equal-height sleeve; 5, shaft rod; 6, first telescopic rod; 7, second telescopic rod; 8, third telescopic rod; 9, fourth telescopic rod; 10, connecting plate; 11, fixed block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] Among them, the same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the Figure 1 drawings, and the terms "bottom surface" and "top surface", "inner" and "outer" respectively refer to the directions towards or away from the geometric center of the specific component. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this specification, "a plurality" means two or more unless otherwise specifically defined.

[0023] Embodiment 1:

[0024] As Figure 1As shown in the figure, a special lifting tool for handling coils includes a fixed frame 1. Clamping arms 2 are rotatably installed at the four corners of the fixed frame 1. A hydraulic workstation 3 is arranged at the top of the fixed frame 1. A height-equalizing sleeve 4 is inserted vertically at the center of the top of the fixed frame 1. A shaft rod 5 is slidably installed up and down in the height-equalizing sleeve 4. A bearing is sleeved at the top end of the shaft rod 5, and the top end of the shaft rod 5 is located at the top of the height-equalizing sleeve 4. A connecting plate 10 is sleeved on the outer ring of the bearing. First telescopic rods 6, second telescopic rods 7, third telescopic rods 8, and fourth telescopic rods 9 are axially and evenly arranged at the top end of the height-equalizing sleeve 4. The first telescopic rods 6, second telescopic rods 7, third telescopic rods 8, and fourth telescopic rods 9 are respectively hinged to the top ends of the clamping arms 2 at the four corners of the fixed frame 1, and the first telescopic rods 6, second telescopic rods 7, third telescopic rods 8, and fourth telescopic rods 9 are also hinged to the top end of the height-equalizing sleeve 4. Axially vertical first rotating shafts are installed at the four corners of the periphery of the connecting plate 10. Vertically placed second rotating shafts are arranged at the top of each clamping arm 2. Positioning walls are rotatably sleeved on the first rotating shafts, and the other ends of the positioning walls are respectively rotatably sleeved on the second rotating shafts. The hydraulic workstation 3 is used to drive the first telescopic rods 6, second telescopic rods 7, third telescopic rods 8, and fourth telescopic rods 9. Fixed blocks 11 are arranged on the centripetal sides of the bottom ends of the clamping arms 2. The fixed blocks 11 are hinged and fixed to the clamping arms 2. The fixed blocks 11 are composed of an arc-shaped plate, connecting lugs, and a plurality of structural reinforcing plates welded together. The connecting lugs are arranged on the centrifugal side of the arc-shaped plate. Through holes penetrating horizontally are arranged on the connecting lugs. The plurality of structural reinforcing plates are used to strengthen the connection structure between the connecting lugs and the arc-shaped plate. A plurality of weight-reducing holes are evenly arranged at equal intervals from top to bottom on the clamping arms 2. A through groove penetrating horizontally is arranged on the fixed frame 1. A plurality of guide wheels are fixedly installed at the top of the fixed frame 1. The plurality of guide wheels are arranged at equal intervals along the length direction of the through groove. The guide wheels at both ends are rotatably installed on the outside of the fixed frame 1 through brackets.

[0025] Specific implementation process: When the hydraulic workstation drives the first telescopic rods 6, second telescopic rods 7, third telescopic rods 8, and fourth telescopic rods 9, the first telescopic rods 6, second telescopic rods 7, third telescopic rods 8, and fourth telescopic rods 9 drive the clamping arms to rotate. At this time, the shortest distance between the top of the clamping arms and the top of the fixed frame must change. By setting the two ends of the first telescopic rods 6, second telescopic rods 7, third telescopic rods 8, and fourth telescopic rods to be hinged and fixed, the first telescopic rods 6, second telescopic rods 7, third telescopic rods 8, and fourth telescopic rods will not affect the rotation of the clamping arms.

[0026] In the embodiments disclosed by the present utility model, terms such as "installation", "connection", "attachment", "fixation", etc. shall be understood in a broad sense. For example, "connection" may be a fixed connection, a detachable connection, or an integral connection; "attachment" may be a direct attachment or an indirect attachment through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments disclosed by the present utility model may be understood according to specific circumstances.

[0027] This specific embodiment is only an interpretation of the present utility model and is not a limitation thereof. After reading this specification, those skilled in the art may make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

Claims

1. A special lifting device for coil handling, characterized in that: The invention comprises a fixed frame (1), wherein the four corners of the fixed frame (1) are all rotatably mounted with clamping arms (2), the top of the fixed frame (1) is provided with a hydraulic workstation (3), the top center of the fixed frame (1) is provided with an equal height sleeve (4), an axial rod (5) is slidably mounted in the equal height sleeve (4), the top end of the axial rod (5) is sleeved with a bearing, and the top end of the axial rod (5) is located at the top of the equal height sleeve (4), the outer ring of the bearing is sleeved with a connecting plate (10), and the top end of the equal height sleeve (4) is evenly axially provided with a first telescopic rod (6), a second telescopic rod (7), a third telescopic rod (8) and a fourth telescopic rod (9), wherein the first telescopic rod (6), the second telescopic rod (7), the third telescopic rod (8) and the fourth telescopic rod (9) are arranged in a uniform manner. ) and the fourth telescopic rod (9) are hingedly connected to the top ends of the clamping arms (2) at the four corners of the fixed frame (1) in a one-to-one correspondence, and the first telescopic rod (6), the second telescopic rod (7), the third telescopic rod (8) and the fourth telescopic rod (9) are hingedly connected to the top ends of the equal-height sleeves (4), the four corners of the periphery of the connecting plate (10) are each equipped with a first rotating shaft with a vertical axis, the top of each of the clamping arms (2) is provided with a second rotating shaft with a vertical axis, a positioning wall is rotatably sleeved on the first rotating shaft, and the other end of the positioning wall is rotatably sleeved on the second rotating shaft, and the hydraulic workstation (3) is used to drive the first telescopic rod (6), the second telescopic rod (7), the third telescopic rod (8) and the fourth telescopic rod (9).

2. A special lifting device for coil handling according to claim 1, characterized in that: A fixing block (11) is provided on one side of the bottom end of the clamping arm (2) and is hingedly fixed to the clamping arm (2).

3. A special lifting device for coil handling according to claim 2, characterized in that: The fixing block (11) comprises an arc-shaped plate, a connecting lug and a plurality of structural reinforcement plates welded together, the connecting lug being arranged on a side of the arc-shaped plate that is centrifugal, the connecting lug being provided with a through hole that runs transversely therethrough, and the plurality of structural reinforcement plates being used to strengthen the connection structure between the connecting lug and the arc-shaped plate.

4. The special lifting device for coil handling according to claim 1, characterized in that: The clamping arm (2) is evenly provided with a plurality of weight-reducing holes at equal intervals from top to bottom.

5. The special lifting device for coil handling according to claim 1, characterized in that: The fixing frame (1) is provided with a through slot which runs transversely therethrough, and a plurality of guide wheels are fixedly mounted on the top of the fixing frame (1), wherein the plurality of guide wheels are arranged at equal intervals along the length direction of the through slot.

6. A special lifting device for coil handling according to claim 5, characterized in that: The guide wheels located at both ends are rotatably mounted on the outside of the fixing frame (1) through brackets.

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