Large coil elevator

Abstract

The utility model discloses a large coil lifter, and relates to the technical field of coil transportation, the large coil lifter comprises a lifting mechanism vertically connected to a coil receiving mechanism in a sliding manner and a pair of coil receiving mechanisms arranged in a central symmetry manner, a translation channel of a coil receiving vehicle is arranged between the two coil receiving mechanisms at an interval, and each coil receiving mechanism comprises a holding arm assembly and a second hydraulic cylinder; the embracing arm assembly is of a C-shaped structure formed by a base, a left embracing arm and a right embracing arm, the left embracing arm and the right embracing arm are arranged at the two ends of the base, the right embracing arm is rotationally connected to the base, and a second hydraulic cylinder installed on the base is connected to the eccentric end of the right embracing arm. In the ascending and descending processes, the right holding arm is closed, and it is guaranteed that the large coil cannot deform or fall off; in the moving process of a hydraulic cylinder in the lifting mechanism, the coil receiving mechanism synchronously moves, ascends or descends along with the hydraulic cylinder; the chain wheel assembly is pushed to ascend and descend by means of the first hydraulic cylinder, and vertical ascending and descending of the coil receiving mechanism can be converted under the action of the chain.

Description

Technical Field

[0001] This application relates to the field of coil transportation technology, and in particular to a large coil elevator. Background Technology

[0002] To facilitate storage, transportation, and subsequent processing, wire rod is wound into large coils after completing a series of pre-processing steps. In conventional industrial production processes, the transportation of steel coils typically takes place between two specific planes. Due to the regular cylindrical shape of the steel coil, the distance between the two transport planes is usually not set too large in actual transport layouts to facilitate operation and ensure stability during transportation. Generally, this distance range is determined by a combination of factors, including the size and specifications of the steel coil, the type of transport equipment used, and the space limitations of the specific production site, and in most cases, it remains within a reasonable and relatively compact numerical range.

[0003] In most conventional production scenarios, the fixed vertical transport distances allow ordinary lifting platforms to adequately handle the transportation needs of standard-sized steel coils. However, with the diversified development of modern industry, the types of steel coils produced have become increasingly diverse. When transporting large coils, the load-bearing capacity of ordinary lifting platforms is insufficient. The weight of large coils far exceeds that of ordinary steel coils, and the load-bearing structure of ordinary lifting platforms cannot withstand such enormous pressure, resulting in significantly insufficient load-bearing capacity. This poses a significant safety hazard during transportation and could even lead to equipment damage due to the excessive weight. Summary of the Invention

[0004] This device provides a large coil hoist, the specific implementation of which is as follows:

[0005] A large coil hoist includes:

[0006] A pair of centrally symmetrical winding mechanisms are provided, with a translation channel for the winding carriage between the two winding mechanisms;

[0007] The lifting mechanism is vertically slidably connected to the coil receiving mechanism. The coil receiving mechanism receives the large coil falling vertically from the top, and the lifting mechanism vertically transfers the large coil to the coil receiving car.

[0008] The coil receiving mechanism includes a clamping arm assembly and a second hydraulic cylinder. The clamping arm assembly consists of a base and a left clamping arm and a right clamping arm located at both ends of the base, forming a C-shaped structure. The right clamping arm is rotatably connected to the base, and the second hydraulic cylinder mounted on the base is connected to the eccentric end of the right clamping arm. After the large coil reaches the lower end vertically, the right clamping arm opens to avoid obstacles and then the coil receiving vehicle is led out.

[0009] Preferably, the output end of the second hydraulic cylinder is provided with a connector, which is rotatably connected to the eccentric part of the right arm.

[0010] Based on the above technical solution, in the production and transportation of large coils, a split-type coil receiving mechanism consisting of two split sections is adopted, which can efficiently and stably handle the unwinding operation of large coils. The right arm, as the moving part of the coil receiving mechanism, has a rotatable design and can rotate 90° under the precise control of a hydraulic cylinder. When the large coil is received and needs to be moved out of the work area along with the coil receiving trolley, the hydraulic cylinder is activated, driving the right arm to rotate outward and open, making room for the smooth removal of the coil receiving trolley and the large coil. During the rising or falling of the coil receiving mechanism, the right arm remains tightly closed. At this time, the right arm works closely with the other arm to firmly hold the large coil from both sides, ensuring that the large coil maintains a stable posture during transportation and effectively preventing deformation or detachment caused by shaking, collisions, or other factors. This comprehensively ensures the integrity and safety of the large coil during the transfer process.

[0011] Preferably, it also includes a support frame, and the lifting mechanism includes a first hydraulic cylinder and a sprocket assembly that is vertically slidably connected to the support frame. The first hydraulic cylinder is mounted on the bottom of the support frame via a support, and the output end of the first hydraulic cylinder is connected to the sprocket assembly. The lifting mechanism also includes a chain, one end of which is connected to the arm assembly and the other end of which is connected to the support frame.

[0012] Preferably, the support frame has vertical guide rails arranged side by side, and the arm assembly has a set of guide wheels that are slidably connected to the vertical guide rails.

[0013] Preferably, a cross cavity is formed between the two C-shaped arm assemblies, and the cross cavity conforms to the outer contour of the winding carriage.

[0014] Based on the above technical solution, after the first hydraulic cylinder starts and begins to move, the winding mechanism moves synchronously with it, enabling it to rise or fall smoothly according to actual production needs. In terms of power transmission, the first hydraulic cylinder is mainly used to drive the sprocket assembly for lifting and lowering. The piston rod of the first hydraulic cylinder is tightly connected to the sprocket assembly. When the piston rod extends or retracts, it directly drives the sprocket assembly to move vertically along a specific guide rail. The sprocket assembly also works in conjunction with the chain; during the rising or falling process, the sprocket continuously engages with the chain for transmission. Since the other end of the chain is securely connected to the winding mechanism, under the drive of the sprocket, the linear motion of the chain is smoothly converted into the vertical lifting and lowering motion of the winding mechanism.

[0015] Preferably, both the left and right clamping arms are provided with a buffer assembly that acts on the bottom of the large coil; the right clamping arm is provided with an opening, the buffer assembly includes a buffer chamber and an abutment wheel passing through the opening, the buffer chamber is rotatably connected to a crank, one end of the crank is rotatably connected to the abutment wheel, and the other end of the crank abuts against a push plate; the push plate is slidably connected to the buffer chamber, and a damping spring is provided between the buffer chamber and the push plate.

[0016] Based on the above technical solutions, by adding a buffer component to the arm, the descent speed of the large coil as it falls vertically onto the receiving mechanism can be further reduced, and the large coil can be smoothly entered into the receiving car under the action of the lifting mechanism.

[0017] Preferably, the support frame has a triangular support seat on the side opposite to the arm assembly.

[0018] Preferably, the height of the arm assembly at the high end is not higher than the top height of the coil receiving carriage.

[0019] In summary, this application includes the following beneficial technical effects:

[0020] 1. In this utility model, the right clamp can rotate 90°, that is, the right clamp can be opened by the hydraulic cylinder to allow the large coil and the receiving trolley to move out smoothly. During the rising and falling process, the right clamp closes to ensure that the large coil will not deform or fall off.

[0021] 2. In this utility model, during the movement of the hydraulic cylinder in the lifting mechanism, the winding mechanism moves synchronously, rising or falling; with the help of the first hydraulic cylinder to drive the sprocket assembly to rise or fall, under the action of the chain, it can be transformed into the vertical lifting of the winding mechanism;

[0022] 3. This utility model has a simple structure. By adding a buffer component to the arm, the descent speed of the large coil falling vertically into the receiving mechanism can be further reduced, and the large coil can be smoothly entered into the receiving car under the action of the lifting mechanism. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the right-side structure of this utility model;

[0024] Figure 2 This is a front view structural diagram of the present invention;

[0025] Figure 3 This is a utility model Figure 2 A schematic diagram of the structure in direction A;

[0026] Figure 4 This is a utility model Figure 2 Cross-sectional view of the structure at point AA;

[0027] Figure 5 This is a utility model Figure 1 Cross-sectional view of the structure at point BB;

[0028] Figure 6 This is a utility model Figure 5 Cross-sectional view of the structure at the EE section

[0029] Figure 7 This is a schematic diagram of the arm assembly in this utility model;

[0030] Figure 8 This is a schematic diagram of the buffer component in this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Buffer assembly; 2. Support base; 3. Arm assembly; 4. First hydraulic cylinder; 5. Chain; 6. Sprocket assembly; 7. Support; 8. Vertical guide rail; 9. Guide wheel assembly; 10. Support frame; 11. Lifting mechanism.

[0033] 101. Abutting wheel; 102. Buffer chamber; 103. Crank; 104. Push plate; 105. Damping spring; 301. Base; 302. Left arm; 303. Right arm; 304. Cross cavity; 305. Second hydraulic cylinder; 306. Connector; 307. Opening. Detailed Implementation

[0034] The specific embodiments of this utility model are described below with reference to the accompanying drawings and examples:

[0035] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0036] Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0037] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0038] This application discloses a large coil lift.

[0039] Example 1

[0040] Reference Figures 1 to 7 This embodiment discloses a large coil lifting machine, including a support frame 10, a pair of coil receiving mechanisms arranged in a centrally symmetrical manner, and a lifting mechanism 11 that is vertically slidably connected to the coil receiving mechanisms. A translation channel for the coil receiving carriage is provided between the two coil receiving mechanisms. The coil receiving mechanism receives the large coil that falls vertically from the top, and the lifting mechanism 11 vertically transfers the large coil to the coil receiving carriage.

[0041] The coil receiving mechanism includes a clamping arm assembly 3 and a second hydraulic cylinder 305. The clamping arm assembly 3 consists of a base 301 and a left clamping arm 302 and a right clamping arm 303 located at both ends of the base 301, forming a C-shaped structure. The right clamping arm 303 is rotatably connected to the base 301, and the second hydraulic cylinder 305, mounted on the base 301, is connected to the eccentric end of the right clamping arm 303. After the large coil reaches the lower end vertically, the right clamping arm 303 opens to avoid obstacles and then guides the coil receiving carriage out. In this structure, the output end of the second hydraulic cylinder 305 is provided with a connector 306, which is rotatably connected to the eccentric part of the right clamping arm 303.

[0042] A cross cavity 304 is formed between the two C-shaped arm assemblies 3, and the cross cavity 304 matches the outer contour of the coil receiving carriage. In this structure, the existing coil receiving carriage consists of a sliding chassis and a top vertical cross-shaped coil receiving column. The coil falls vertically into the cross-shaped coil receiving column. The engagement of the cross-shaped coil receiving column with the cross cavity 304 can improve the horizontal limit and stability of the entire coil receiving carriage during the vertical coil receiving process.

[0043] The lifting mechanism 11 includes a first hydraulic cylinder 4 and a sprocket assembly 6 that is vertically slidably connected to the support frame 10. The first hydraulic cylinder 4 is mounted on the bottom of the support frame 10 via a support 7, and the output end of the first hydraulic cylinder 4 is connected to the sprocket assembly 6. In this structure, the lifting mechanism 11 also includes a chain 5. One end of the chain 5 is connected to the arm assembly 3, and the other end is connected to the support frame 10. Vertical guide rails 8 are arranged side by side on the side of the support frame 10, and guide wheel groups 9 that are slidably connected to the vertical guide rails 8 are provided on the arm assembly 3.

[0044] The support frame 10 has a triangular support seat 2 on the side opposite to the arm assembly 3, and the height of the arm assembly 3 at the high end is not higher than the top height of the winding trolley.

[0045] The specific implementation process is as follows: the lifting mechanism 11 drives the arm assembly 3 to the high position; the large coil falls into the cross-shaped receiving column of the receiving carriage; the bottom of the large coil touches the top of the left arm 302 and the right arm 303; the lifting mechanism 11 causes the large coil, the left arm 302 and the right arm 303 to descend to the low position; the second hydraulic cylinder 305 drives the right arm 303 to open outward, and the receiving carriage carries the large coil outward through the cross cavity 304.

[0046] Example 2

[0047] Reference Figures 1 to 8Based on the above embodiments, this embodiment also discloses a large coil lifting machine. Both the left arm 302 and the right arm 303 are provided with a buffer assembly 1 that acts on the bottom of the large coil. The right arm 303 is provided with an opening 307. The buffer assembly 1 includes a buffer chamber 102 and an abutment wheel 101 that passes through the opening 307. The buffer chamber 102 is rotatably connected to a crank 103. One end of the crank 103 is rotatably connected to the abutment wheel 101, and the other end of the crank 103 abuts against a push plate 104. The push plate 104 is slidably connected to the buffer chamber 102, and a damping spring 105 is provided between the buffer chamber 102 and the push plate 104. In this structure, the abutment wheel 101 can also be replaced with an abutment plate that can move vertically.

[0048] The specific implementation process is as follows: During the process of winding the large coil, the bottom of the large coil first contacts the abutment wheel 101. Under the action of the crank 103, the abutment wheel 101 drives the push plate 104 to move, and the damping spring 105 slows down the falling speed of the abutment wheel 101; thus, the large coil slowly falls onto the left arm 302 and the right arm 303.

[0049] Many other changes and modifications can be made without departing from the concept and scope of this utility model. It should be understood that this utility model is not limited to the specific embodiments, and the scope of this utility model is defined by the appended claims.

Claims

1. A large coil elevator characterized in that, The application relates to a large-diameter coil receiving device. The application comprises a pair of center-symmetrically arranged coil receiving mechanisms, a translation channel of a coil receiving vehicle being arranged between the two coil receiving mechanisms; A lifting mechanism (11) vertically slidingly connects the coil receiving mechanism, the coil receiving mechanism receives a large-diameter coil vertically falling from the top, and the lifting mechanism (11) vertically transfers the large-diameter coil to the coil receiving vehicle; The coil receiving mechanism comprises an arm embracing assembly (3) and a second hydraulic cylinder (305), the arm embracing assembly (3) is composed of a base (301) and left and right arm embracing assemblies (302 and 303) arranged at the two ends of the base (301) to form a C-shaped structure, the right arm embracing assembly (303) is rotationally connected to the base (301), the second hydraulic cylinder (305) installed on the base (301) is connected to the eccentric end of the right arm embracing assembly (303), and the right arm embracing assembly (303) is opened to avoid obstacles after the large-diameter coil vertically reaches a low position and then guides the coil receiving vehicle.

2. A large coil elevator according to claim 1, characterized in that The application further comprises a support frame (10), the lifting mechanism (11) comprises a first hydraulic cylinder (4) and a chain wheel assembly (6) vertically slidingly connected to the support frame (10), the first hydraulic cylinder (4) is installed on the bottom of the support frame (10) through a support (7), and the output end of the first hydraulic cylinder (4) is connected to the chain wheel assembly (6); The lifting mechanism (11) further comprises a chain (5), one end of the chain (5) is connected to the arm embracing assembly (3), and the other end of the chain (5) is connected to the support frame (10).

3. A large coil elevator according to claim 2, characterized in that Vertical guide rails (8) are arranged on the side of the support frame (10), and guide wheel groups (9) slidingly connected to the vertical guide rails (8) are arranged on the arm embracing assembly (3).

4. A large coil elevator according to claim 3, characterized in that Cross cavities (304) are formed between the two C-shaped arm embracing assemblies (3), and the cross cavities (304) are consistent with the outer contour of the coil receiving vehicle.

5. A large coil elevator according to claim 4, characterized in that A joint (306) is arranged at the output end of the second hydraulic cylinder (305), and the joint (306) rotationally connects the eccentric part of the right arm embracing assembly (303).

6. A large coil elevator according to claim 2, wherein A triangular support base (2) is arranged on the side of the support frame (10) opposite to the arm embracing assembly (3).

7. A large coil elevator according to claim 1, wherein The height of the arm embracing assembly (3) at the high position end is not higher than the top end height of the coil receiving vehicle.

8. A large coil elevator according to claim 1, wherein Buffer assemblies (1) acting on the bottom of the large-diameter coil are arranged on the left and right arm embracing assemblies (302 and 303); An opening (307) is arranged on the right arm embracing assembly (303), the buffer assembly (1) comprises a buffer bin (102) and an abutting wheel (101) penetrating through the opening (307), a crank (103) is rotationally connected to the buffer bin (102), one end of the crank (103) is rotationally connected to the abutting wheel (101), and the other end of the crank (103) abuts against a push plate (104); The push plate (104) slidingly connects the buffer bin (102), and a damping spring (105) is arranged between the buffer bin (102) and the push plate (104).

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