Vertical balance hoist carbon felt cylinder hanger and its method for realizing balance hoisting

Abstract

The application discloses a vertical balance hoisting carbon felt cylinder hanger and a method for realizing balance hoisting, wherein the hanger comprises a frame body assembly, a lifting assembly arranged on the upper portion of the frame body assembly and a self-balancing hanging foot assembly arranged on the lower portion of the frame body assembly; during hoisting, the carbon felt cylinder is first hooked by the self-balancing hanging foot assembly at the bottom, and then is lifted upward by the lifting assembly. The method has the advantages that: 1. the carbon felt cylinder can be conveniently hooked and lifted during operation, and the labor intensity of the operator is reduced and the work efficiency of the operator is improved; 2. the force bearing position of the carbon felt cylinder is ensured not to be damaged.

Description

Technical Field

[0001] This invention relates to a lifting device, specifically a lifting frame for vertically balancing carbon felt cylinders and its method for achieving balanced lifting.

[0002] The installation method falls under the category of thermal insulation materials and equipment. Background Technology

[0003] Carbon felt cylinders, widely used as insulation materials in industrial furnaces, require hoisting and transportation during multiple processing steps. Due to their large size and weight, and the fact that their outer and inner surfaces are smooth curves without depressions or protrusions, it's inconvenient to apply upward force using gripping, hooking, or supporting methods. Furthermore, carbon felt cylinders have low mechanical strength and are fragile, making them susceptible to damage during handling. Existing equipment and methods for hoisting carbon felt cylinders are rudimentary and simplistic, primarily characterized by cumbersome and time-consuming hooking and securing operations, which easily damage stress points, especially the bottom edges of the carbon felt cylinder. Summary of the Invention

[0004] The technical problem to be solved by this invention is that traditional hoisting equipment and methods are complicated to operate, time-consuming and labor-intensive, and are prone to damage to stressed parts, especially the bottom edge of the carbon felt cylinder.

[0005] To address the above problems, the technical solution proposed by this invention is as follows:

[0006] A vertically balanced hoisting frame for carbon felt cylinders includes a frame assembly, a lifting assembly installed on the upper part of the frame assembly, and a self-balancing hanging foot assembly installed on the lower part of the frame assembly. During hoisting, the bottom of the carbon felt cylinder is first hooked by the self-balancing hanging foot assembly, and then the carbon felt cylinder is lifted upward by the lifting assembly.

[0007] Furthermore: the frame assembly includes frame columns and support plates. The support plates are horizontally arranged and have three or more tangentially arranged support shafts of equal arc length around their perimeter. There are three or more frame columns, each of which is vertically installed on the support shafts of the support plate and can rotate radially around the support shafts. The self-balancing hanging foot assembly is installed at the bottom end of the frame column. The part of the frame column below the support shaft is a radial opening and closing section, and the part above the support shaft is an opening and closing control section, the upper end of which is a wrench end.

[0008] Furthermore, the self-balancing hanging foot assembly includes a foot bone and a hanging foot; the rear end of the foot bone is fixed at an angle to the bottom end of the support column, its front end is radially outward, and its end has a horizontally arranged pivot. The hanging foot is installed on the pivot of the foot bone and can rotate around the pivot. The upper top surface of the front part of the hanging foot is a plane for placing the bottom end of the carbon felt cylinder.

[0009] Furthermore: the front end of the foot bone has a first shaft hole that communicates with the left and right sides; the middle of the hanging foot has a column hole that communicates with the top and bottom sides at the rear, and the middle of the hanging foot has a second shaft hole that faces left and right sides at the front. The middle of the lower part of the hanging foot has a foot bone space for installing the foot bone, which communicates with the column hole at the rear. The second shaft hole is divided into two parts located on the left and right sides of the hanging foot by the foot bone space. The lower end of the frame column and the foot bone are located in the column hole and the foot bone space, respectively. The first shaft hole of the foot bone is aligned and communicates with the second shaft hole of the hanging foot. The rotating shaft is installed in the first shaft hole and the second shaft hole. There are gaps between the front and rear walls of the frame column and the column hole, and there are gaps between the foot bone and the upper and front hanging feet of the foot bone space.

[0010] Furthermore: There is a fixed stop on the frame column above the rear of the hanging foot, and a compression spring is provided between the stop and the rear hanging foot. Under the action of the compression spring, the height of the front end of the hanging foot is higher than the height of the rear end of the hanging foot, and this state is always maintained when there is no pressure from the carbon felt cylinder.

[0011] Furthermore, a sliding ball capable of rolling in any direction is provided under the rear of the hanging foot.

[0012] Furthermore, the lifting assembly includes a lifting ring and a lifting chain. The lifting ring is located above the support plate, and there are three or more lifting chains. One end of each lifting chain is connected to the opening and closing control section of a corresponding column, and the other end of each lifting chain is connected to the lifting ring.

[0013] Furthermore, the hanger is also equipped with a gravity-fitting ring that can be fitted over all the columns; the outer side of the column below the support shaft height is provided with a downward and outwardly sloping sliding edge, with the support plate axis as the center line. The radius of the circle containing the upper outer side of the sliding edge is smaller than the radius of the circle containing the lower outer side of the sliding edge. The lower outer side of the sliding edge is provided with a limiting hook with an upward groove. The gravity-fitting ring fits on the sliding surface outside the sliding edge of each column and can slide up and down on the sliding surface outside the sliding edge. When the gravity-fitting ring slides upward to the upper end of the sliding edge, the radial opening and closing section of the column can open radially outward to the set maximum angle.

[0014] Furthermore, the lifting assembly also includes a lifting rod whose lower end is connected to a gravity frame ring via a spoke frame, and whose upper end passes through a support plate and is connected to a lifting ring; when the lifting ring lifts the gravity frame ring upward to the upper end of the sliding edge, all lifting chains have been straightened by the lifting ring.

[0015] Furthermore: there is an iron magnetic stop plate fixedly mounted on the rod between the support plate and the lifting ring, and an electromagnetic coil is provided on the upper surface of the support plate; when the magnetic stop plate falls on the support plate, the rod cannot continue to slide downward. If the electromagnetic coil is energized at this time, the magnetic stop plate is attracted to the support plate under the action of electromagnetic force, and the rod cannot slide upward relative to the support plate.

[0016] A method for automatically balancing the lifting of a vertically suspended carbon felt cylinder is provided by setting a lifting component at the upper center of the lifting frame for the lifting device to hook onto, and setting each hook member arranged with equal arc length on the same circle at the lower part as an elastic hook member with a downward stroke under pressure and the ability to automatically return to the upward position.

[0017] The elastic hook component is divided into a fixed component and a rotating component. The upper end surface of the rotating component is a plane that contacts the bottom end surface of the carbon felt cylinder. One end of the fixed component is fixed to the frame component of the hanger, and a tangential shaft is installed at the other end. Then, the middle part of the rotating component is installed on the tangential shaft, so that the front and rear ends of the rotating component can rotate around the tangential shaft. A compression spring that applies downward pressure is installed at the rear end of the rotating component, so that the front end of the rotating component is kept in an upward tilted posture higher than the rear end when not in operation.

[0018] The advantages of this invention are: 1. It allows for easy hooking and lifting of the carbon felt cylinder during operation, significantly reducing labor intensity and improving work efficiency. 2. It ensures that the stressed parts of the carbon felt cylinder are not damaged. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a vertically balanced hoisting frame for carbon felt cylinders used in Embodiment 1 for hoisting products.

[0020] Figure 2 This is a three-dimensional schematic diagram of a vertically balanced hoisting frame for a carbon felt cylinder, as shown in Embodiment 1.

[0021] Figure 3 This is a schematic diagram showing the connection relationship between the support column and the foot frame in Example 1;

[0022] Figure 4 This is a schematic diagram of the hanging foot cross-section in Example 1;

[0023] Figure 5 This is a schematic cross-sectional view of the structural relationship between the support column, the base frame, and the hanging foot in Example 1;

[0024] Figure 6 This is a cross-sectional schematic diagram of the hanging foot assembly after adding a compression spring and a slider in Embodiment 1;

[0025] Figure 7 This is a three-dimensional schematic diagram of the structural relationship between the support plate and the electromagnetic coil in Embodiment 1;

[0026] Figure 8 This is a schematic diagram showing the connection relationship between the gravity frame ring and the lifting rod in Example 1;

[0027] Figure 9 As in Example 1 Figure 2 Partial schematic diagram, showing the frame in its assembled state;

[0028] Figure 10As in Example 1 Figure 2 Partial schematic diagram, showing the carbon felt cylinder being lifted at this point;

[0029] Figure 11 This is a simplified schematic diagram of a vertically balanced hoisting frame for a carbon felt cylinder, as described in Embodiment 2.

[0030] In the diagram: 100, carbon felt cylinder; 200, hanger; 1, support column; 101, radial opening and closing section; 102, opening and closing control section; 103, wrench end; 2, support plate; 3, support shaft; 4, foot bone; 5, hanging foot; 6, rotating shaft; 7, shaft hole one; 8, shaft hole two; 9, column hole; 10, foot bone space; 11, compression spring; 12, stop seat; 13, sliding ball; 14, lifting ring; 15, lifting chain; 16, sliding edge; 17, limit hook; 18, gravity closing ring; spoke frame; 20, lifting rod; 21, magnetic stop plate; 22, electromagnetic coil; 23, switch; 24, power cord; 25, overhead crane. Detailed Implementation

[0031] The present invention will be further described below with reference to embodiments and accompanying drawings:

[0032] Example 1

[0033] like Figure 1 , 2 As shown, a lifting frame 200 for vertically hoisting a carbon felt cylinder 100 includes a frame assembly, a lifting assembly installed on the upper part of the frame assembly, and a self-balancing hook assembly installed on the lower part of the frame assembly. During hoisting, the bottom of the carbon felt cylinder 100 is first hooked by the self-balancing hook assembly, and then the entire lifting frame 200 together with the carbon felt cylinder 100 is hoisted upward by the lifting assembly. The detailed structure and principle of the aforementioned frame assembly, lifting assembly, and self-balancing hook assembly will be described in detail below. The frame assembly has a simple structure and is easy to operate, allowing the self-balancing hook assembly installed at the bottom to easily hook onto the bottom of the carbon felt cylinder 100. The hook assembly consists of three hooks of equal arc length arranged on the same circle. Each hook assembly has a hook 5 that can support the bottom edge of the carbon felt cylinder 100 from below. The upper surface of the hook 5 is flat, which can automatically maintain a state of contact with the bottom edge of the carbon felt cylinder 100. Each hook assembly is equipped with an elastic component, which ensures that each hook 5 can still bear force when the crane 200 is lifted and when the crane 200 sways after lifting, thereby effectively protecting the stressed parts of the cylinder from damage. The lifting assembly is not only directly connected to the frame but also connected to the functional component that controls the opening and closing of the frame. During lifting and lowering, it can simultaneously drive the functional component that controls the opening and closing of the frame to perform the opening and closing task. The above settings enable the hanger 200 to lift the carbon felt cylinder 100 efficiently and with minimal effort, while ensuring that the bottom of the cylinder is not damaged.

[0034] The following are further detailed measures.

[0035] like Figure 2 As shown, the frame assembly includes frame columns 1 and support plates 2. The support plates 2 are horizontally arranged, with three tangentially arranged support shafts 3 of equal arc length around their perimeter. There are three frame columns 1, each vertically mounted on the support shafts 3 of the support plates 2 and capable of radial rotation around the support shafts 3. The self-balancing hanging foot assembly is installed at the bottom end of the frame columns 1. The portion of the frame column 1 below the support shafts 3 is a radial opening and closing section 101, which can separate the three frame columns outwards. The portion above the support shafts 3 is an opening and closing control section 102, the upper end of which is a lever end 103. This utilizes the lever principle; when the lever end 103 of the frame column 1 is pushed radially inwards by hand, the lower radial opening and closing section 101 will rotate radially outwards, thus causing the three frame columns 1 to separate radially outwards.

[0036] like Figure 1 , 3 As shown in Figures 4 and 5, the self-balancing hanging foot assembly includes a foot bone 4 and a hanging foot 5; the rear end of the foot bone 4 is fixed at an angle to the bottom end of the support column 1, and this angle is equal to or close to 90 degrees; the front end of the foot bone 4 is radially outward, and the end has a horizontally arranged pivot 6; the hanging foot 5 is installed on the pivot 6 of the foot bone 4 and can rotate around the pivot 6; the upper top surface of the front part of the hanging foot 5 is a plane on which the bottom end of the carbon felt cylinder 100 is placed. With the above configuration, when the bottom surface of the carbon felt cylinder 100 presses against the upper surface of the hanging foot 5, no matter how large the angle between the foot bone 4 and the horizontal plane after the radial rotation of the frame column 1, the hanging foot 5 can rotate around the pivot 6 to a horizontal position, so that the top surface of the hanging foot 5 naturally and fully contacts the bottom surface of the carbon felt cylinder 100 and evenly bears the weight applied by the carbon felt cylinder 100. This avoids the situation where the fixed hanging foot 5 of the prior art cannot rotate and can only be partially contacted and subjected to force, resulting in the bottom force-bearing part of the carbon felt cylinder 100 being dented or broken.

[0037] The front end of the foot bone 4 has a left-right communicating shaft hole 7; the middle rear of the hanging foot 5 has a vertically communicating column hole 9, and the middle front of the hanging foot 5 has a left-right oriented shaft hole 8. The lower middle of the hanging foot 5 has a foot bone space 10 for installing the foot bone 4, which communicates with the rear column hole 9. The shaft hole 8 is divided into two parts located on the left and right sides of the hanging foot 5 by the foot bone space 10. The lower end of the support column 1 and the foot bone 4 are located in the column hole 9 and the foot bone space 10, respectively. The shaft hole 7 of the foot bone 4 is aligned and communicates with the shaft hole 8 of the hanging foot 5. The rotating shaft 6 is installed in the shaft hole 7 and the shaft hole 8. There are gaps between the front and rear walls of the support column 1 and the column hole 9, and there are gaps between the foot bone 4 and the upper and front hanging foot 5 of the foot bone space 10. The above arrangement ensures that the hanging foot 5 can rotate around the rotating shaft 6. As can be seen from the settings, the angle of this rotation is limited. In actual application, there is no need to make a large angle of rotation. As long as the top surface of the hanging foot can be completely in contact with the bottom surface of the carbon felt cylinder 100 at any time, it is sufficient.

[0038] A stop 12 is fixedly installed on the support column 1 above the rear of the hanging foot 5. A compression spring 11 is provided between the stop 12 and the rear hanging foot 5. Under the action of the compression spring 11, the height of the front end of the hanging foot 5 is higher than the height of the rear end of the hanging foot 5, and this state is always maintained when there is no pressure from the carbon felt cylinder. The purpose of this arrangement is mainly to ensure that the front end of the hanging foot 5 contacts the bottom edge of the carbon felt cylinder first and is under force, and always maintains contact and force. When the hanger 200 sways and deviates to one side, the pressure on the front end of the pivot 6 of the hanging foot 5 on the opposite side will suddenly increase. Under the support of the pivot, this sudden increase in pressure can force the compression spring 11 to compress, the front end of the hanging foot 5 sinks and the rear end rises, until the entire upper surface of the hanging foot contacts the bottom surface of the carbon felt cylinder 100. This is actually an automatic buffering and automatic balancing process when the hanging foot 5 on the opposite side is suddenly subjected to a strong force.

[0039] like Figure 1 , 5 As shown in Figure 6, a sliding ball 13 capable of rolling in any direction is provided under the rear of the hanging foot 5. Before and after hoisting, the carbon felt cylinder 100 is generally placed on three radially arranged horizontal pads, with a horizontal ground or platform underneath. This creates a certain height gap between the bottom of the carbon felt cylinder 100 and the ground or platform, facilitating the insertion of the hanging foot from between the pads. With the sliding ball 13 capable of rolling in any direction provided under the rear of the hanging foot 5, when the hoist falls from the carbon felt cylinder to the ground below the carbon felt cylinder 100, it slides on the horizontal ground or platform using the sliding ball 13. Opening and closing the hoist can be easily achieved by pulling the lever end 103.

[0040] like Figure 2 , 9As shown in Figure 10, the lifting assembly includes a lifting ring 14 and a lifting chain 15. The lifting ring 14 is located above the support plate 2. There are three lifting chains 15, one for each corresponding column. One end of each lifting chain 15 is connected to the opening and closing control section 102 of a corresponding column 1, and the other end of each lifting chain 15 is connected to the lifting ring 14. The lifting chain connection is a flexible connection. A straight rod can also be used instead of a lifting chain connection, but to ensure that the lifting ring 14 is connected to the gravity-supported frame ring 18 later, a lifting chain connection must be used.

[0041] The hanger is also equipped with a gravity-fitting ring 18 that can be fitted over all the columns 1; the outer side of the column 1 below the height of the support shaft 3 is provided with a downward and outwardly sloping sliding edge 16, with the center line of the support plate 2 as the center line. The radius of the circle on the outer side of the upper end of the sliding edge 16 is smaller than the radius of the circle on the outer side of the lower end of the sliding edge 16. The outer side of the lower end of the sliding edge 16 is provided with a limiting hook 17 with the groove opening facing upward. The gravity-fitting ring 18 fits on the sliding surface on the outer side of the sliding edge 16 of each column and can slide up and down on the sliding surface on the outer side of the sliding edge 16. When the gravity-fitting ring 18 slides upward to the upper end of the sliding edge 16, the radial opening and closing section 101 of the column can open radially outward to the set maximum angle. The function of the gravity-operated frame ring 18 is that, after hoisting, under the action of gravity, the gravity-operated frame ring 18 slides down from top to bottom along the sliding edge 16 on the outer side of the frame column 1, which helps to retract the radial opening and closing sections 101 of each frame column 1 towards the center. When the gravity-operated frame ring 18 falls into the hook groove of the limiting hook 17, each frame column 1 remains in a locked state, which can neither be released nor retracted, due to the restriction of the gravity-operated frame ring 18 and the limiting hook 17. This is beneficial for hoisting the entire frame out of the carbon felt cylinder.

[0042] The lifting assembly also includes a lifting rod 20 that is connected to the gravity frame ring 18 at the lower end via a spoke 19 and at the upper end via a support plate 2 and a lifting ring 14; when the lifting ring 14 lifts the gravity frame ring 18 upward to the upper end of the sliding edge 16, all the lifting chains 15 have been straightened by the lifting ring. The principle behind this setup is that when the gravity-loaded frame ring 18 falls into the hook groove of the limiting hook 17 and each frame column 1 is in the locked state, the lifting chain 15 is in a non-stressed bent state. When it is necessary to open the radial opening section 101 of the gantry 200 to hook the carbon felt cylinder 100 to be hoisted, the overhead crane 25 is used to hook and lift the lifting ring, causing the gravity-loaded frame ring 18 to rise to the height of the support plate 2. This allows the sliding edge 16 on the outer side of the frame column 1 to gradually break free from the restriction of the gravity-loaded frame ring 18, and the frame column 1 can be opened until the hanging foot assembly hooks the bottom of the carbon felt cylinder. At the same time, the lifting chain, which is in a non-stressed bent state, is gradually straightened by the rising lifting ring 14. When it is necessary to lift the lifting ring, the overhead crane 25 continues to lift the lifting ring 14, and the straightened lifting chain 15 begins to apply an upward lifting force to the frame column until the entire gantry 200 and the carbon felt cylinder are lifted.

[0043] like Figure 2 ,7 As shown in Figures 8, 9, and 10, the rod 20 between the support plate 2 and the lifting ring 14 has an iron magnetic stop plate 21 fixedly mounted on it. An electromagnetic coil 22 is provided on the upper surface of the support plate 2. There is a power supply for the electromagnetic coil 22, which can be AC ​​power from the mains or DC electromagnetic power. There is a power line 24 and a switch 23 to control the power supply. When the magnetic stop plate 21 falls on the support plate 2, the gravity retaining ring 18 also falls into the hook groove of the limiting hook 17. The rod 20 cannot continue to slide downward. If the electromagnetic coil 22 is energized at this time, the magnetic stop plate 21 is attracted to the support plate 2 under the action of electromagnetic force. The rod 20 cannot slide upward relative to the support plate 2. Its design function is to prevent the gravity retaining ring 18 from rising and causing the columns 1 of the hanger 200 to be in a loose state of random swinging.

[0044] Example 2

[0045] like Figure 11 As shown, a lifting frame 200 for vertically hoisting a carbon felt cylinder 100 differs from Embodiment 1 in that it has four support columns 1, corresponding to four support shafts 3 on the support plate 2 for mounting the support columns 1, and four lifting chains 15 connecting the support columns 1 and the lifting rings 14. Other structures and principles are the same as in Embodiment 1.

[0046] A method for achieving balanced lifting of a vertically balanced carbon felt cylinder 100 by a lifting frame 200 is characterized in that: a lifting component for a lifting device to hook is provided at the upper center of the lifting frame 200, and each hook member arranged with equal arc length on the same circle at the lower part is configured as an elastic hook member with a downward stroke under pressure and capable of automatically returning to its original position.

[0047] During the hoisting of the carbon felt cylinder 100, because it needs to move in a certain direction after hoisting, the hoisting equipment, such as an overhead crane or gantry crane, applies not only an upward force but also a force in the transport direction to the lifting device of the hoist 200. This force in the transport direction causes the hoist 200 to tilt relative to the carbon felt cylinder 100. If the transport speed in a certain direction varies, it will also cause the hoist 200 to sway, making the tilting of the hoist 200 relative to the cylinder more frequent. Furthermore, during hoisting, the upward pulling force applied by the hoisting equipment is often not the same as the vertical force applied to the lifting device.

[0048] Instead of a straight upward force, the force will be biased in a certain direction, causing the hanger 200 to tilt relative to the carbon felt cylinder 100. The method described above for achieving balanced lifting of the hanger 200 is achieved through two continuous processes: First, ensuring all elastic hooks are in contact with the force. When the hanger 200 tilts relative to the carbon felt cylinder 100, the elastic hooks on the opposite side of the tilt direction first experience greater pressure. This pressure forces the elastic hooks in that direction to move downwards and experience greater pressure, while the elastic hooks on the same side of the tilt direction experience less pressure, causing them to move upwards but still in contact with the carbon felt cylinder 100 and experience less pressure. In this way, all elastic hooks are in contact with the force, only the magnitude of the pressure varies. Second, establishing a tendency towards balanced force. When the hanger 200 tilts relative to the carbon felt cylinder 100, the elastic hook on the side opposite to the tilt direction is subjected to greater pressure first, forcing the elastic hook in that direction to move downward and be subjected to greater pressure. This pressure is applied upward to the bottom end of the carbon felt cylinder 100 in the form of a reaction force, forcing the carbon felt cylinder 100 to tilt in the same direction as the tilt direction of the hanger 200, so that the elastic hook in the tilt direction of the hanger 200 receives gradually increasing pressure.

[0049] The aforementioned balanced hoisting refers to the fact that when the hoist 200 tilts relative to the cylinder during the hoisting process, each elastic hook component remains in contact with the bottom end of the carbon felt cylinder 100 and tends to be subjected to balanced force.

[0050] Furthermore, the elastic hook component is divided into a fixed component and a rotating component. The upper end surface of the rotating component is a plane that contacts the bottom end surface of the carbon felt cylinder 100. One end of the fixed component is fixed to the frame component of the hanger 200, and a tangential shaft is installed at the other end. Then, the middle part of the rotating component is installed on the tangential shaft, so that the front and rear ends of the rotating component can rotate around the tangential shaft. A compression spring that applies downward pressure is installed at the rear end of the rotating component, so that the front end of the rotating component is kept in an upward tilted posture higher than the rear end when not in operation.

[0051] The above method ensures that when the bottom end face of the carbon felt cylinder 100 presses against the upper end face of the rotating component, regardless of the angle between the fixed component and the horizontal plane, the rotating component can rotate around the tangential axis to a horizontal position. This allows the upper end face of the rotating component to naturally and fully contact the bottom end face of the carbon felt cylinder 100 and evenly bear the weight applied by the carbon felt cylinder 100. This avoids the situation in the prior art where the fixed rotating component cannot rotate and can only partially contact the force, resulting in dents or breakage at the bottom end of the carbon felt cylinder 100.

[0052] Obviously, the above embodiments are only used to describe the present invention more clearly, and should not be regarded as limiting the scope of protection covered by the present invention. Any equivalent modifications should be regarded as falling within the scope of protection covered by the present invention.

Claims

1. A vertically balanced hoisting frame for carbon felt cylinders, comprising a frame assembly, a lifting assembly installed on the upper part of the frame assembly, and a self-balancing hanging foot assembly installed on the lower part of the frame assembly. During hoisting, the bottom of the carbon felt cylinder is first hooked by the self-balancing hanging foot assembly, and then the carbon felt cylinder is lifted upward by the lifting assembly. The frame assembly includes a frame column (1) and a support plate (2). The support plate (2) is horizontally arranged and has three or more tangentially arranged support shafts (3) of equal arc length around its perimeter. There are three or more frame columns (1), each of which is vertically installed on the support shaft (3) of the support plate (2) and can rotate radially around the support shaft (3). The self-balancing hanging foot assembly is installed at the bottom end of the frame column (1). The portion of the support column (1) below the support shaft (3) is a radial opening and closing section (101), and the portion above the support shaft (3) is an opening and closing control section (102), with a wrench end (103) at its upper end; the lifting assembly includes a lifting ring (14) and a lifting chain (15), the lifting ring (14) being located above the support plate (2), and the lifting chain (15) having three or more chains, one end of each chain (15) being connected to an opening and closing control section (102) of a corresponding support column (1), and the other end of each chain (15) being connected to the lifting ring (14); the frame also has a gravity-fitting ring (18) that can be fitted over all the support columns (1); the outer side of the support column (1) below the height of the support shaft (3) has a downward and outwardly sloping sliding edge (16) to... The center line of the support plate (2) is the line where the center of the circle is located. The radius of the circle where the sliding surface is located on the outer side of the upper end of the sliding edge (16) is smaller than the radius of the circle where the sliding surface is located on the outer side of the lower end of the sliding edge (16). The outer side of the lower end of the sliding edge (16) is provided with a limiting hook (17) with the slot facing upward. The gravity frame ring (18) is sleeved on the outer side of the sliding surface of each frame column and can slide up and down on the outer side of the sliding surface of the sliding edge (16). The lifting assembly also includes a lifting rod (20) whose lower end is connected to the gravity frame ring (18) through the spokes (19) and whose upper end passes through the support plate (2) and is connected to the lifting ring (14). When the lifting ring (14) lifts the gravity frame ring (18) upward to the upper end of the sliding edge (16), all the lifting chains (15) have been straightened by the lifting ring.

2. The hanger for vertically balancing and hoisting carbon felt cylinders according to claim 1, characterized in that: The self-balancing hanging foot assembly includes a foot bone (4) and a hanging foot (5); the rear end of the foot bone (4) is fixed at an angle to the bottom end of the support column (1), its front end is radially outward, and its end has a horizontally arranged pivot (6) in the left and right directions. The hanging foot (5) is installed on the pivot (6) of the foot bone (4) and can rotate around the pivot (6); the upper top surface of the front part of the hanging foot (5) is a plane for placing the bottom end of the carbon felt cylinder.

3. The hanger for vertically balancing and hoisting carbon felt cylinders according to claim 2, characterized in that: The front end of the foot bone (4) has a shaft hole 1 (7) that is open to both sides; the middle of the hanging foot (5) has a column hole (9) that is open to both sides, and the middle of the hanging foot (5) has a shaft hole 2 (8) that is open to both sides. The lower middle of the hanging foot (5) has a foot bone space (10) for installing the foot bone (4). The foot bone space (10) is open to the column hole (9) at the rear, and the shaft hole 2 (8) is divided into two parts located on the left and right sides of the hanging foot (5) by the foot bone space (10). The lower end of the support column (1) and the foot bone (4) are located in the column hole (9) and the foot bone space (10) respectively. The first shaft hole (7) of the foot bone (4) is aligned and connected with the second shaft hole (8) of the hanging foot (5). The rotating shaft (6) is installed in the first shaft hole (7) and the second shaft hole (8). There are gaps between the front wall and the rear wall of the support column (1) and the column hole (9). There are gaps between the foot bone (4) and the upper and front hanging feet (5) of the foot bone space (10).

4. The hanger for vertically balancing and hoisting carbon felt cylinders according to claim 3, characterized in that: There is a fixed stop (12) on the frame (1) above the rear of the hanging foot (5). A compression spring (11) is provided between the stop (12) and the rear hanging foot (5). Under the action of the compression spring (11), the height of the front end of the hanging foot (5) is higher than the height of the rear end of the hanging foot (5) and this state is always maintained when there is no pressure from the carbon felt cylinder.

5. The hanger for vertically balancing and hoisting carbon felt cylinders according to claim 1, characterized in that: The support plate (2) and the lifting ring (14) have an iron magnetic stop plate (21) fixedly mounted on the lifting rod (20). The upper surface of the support plate (2) is provided with an electromagnetic coil (22). When the magnetic stop plate (21) falls on the support plate (2), the lifting rod (20) cannot continue to slide downward. If the electromagnetic coil (22) is energized at this time, the magnetic stop plate (21) is attracted to the support plate (2) under the action of electromagnetic force, and the lifting rod (20) cannot slide upward relative to the support plate (2).

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