A working method of a metallurgical skip

Abstract

The present invention discloses a working method of a metallurgical skip, based on a metallurgical skip, comprising: a frame, bearing the lifting load of the entire skip; a bucket box, located between the side plates of the frame, with a rotating mechanism rotatably connected to the frame provided at the top of the bucket box; an unloading guide wheel, arranged on one side of the bucket box and close to the bottom end, serving as a fulcrum for applying external force, for driving the bucket box to rotate and tilt relative to the frame to complete the unloading action; a gate, located at the bottom of the bucket box, rotatably connected to the bucket box via a rotating hinge; a supporting lever mechanism, arranged between the gate and the chassis of the frame, for supporting the gate and the ore in the bucket box during the rotation of the bucket box; and a locking mechanism for locking the supporting lever mechanism. The disclosure of the present invention improves the skip unloading operation curve and enhances the safety and reliability of the skip operation.

Description

Technical Field

[0001] The present invention relates to the technical field of metallurgical machinery and equipment, and more particularly to a working method of a metallurgical skip. Background Art

[0002] The vertical shaft metallurgical skip is a lifting or lowering container used to transport ore and waste rock mined underground to the ground.

[0003] The classification of metallurgical skips is as follows: tipping skips and bottom-dumping skips. Bottom-dumping skips include non-tilted bucket type and tilted bucket type. The tilted bucket type includes guide wheel hook type and bottom safety locking type.

[0004] In recent years, due to the widespread use of multi-rope friction hoists, shaft hoisting has gradually developed towards deeper and higher production. Correspondingly, the inclined bottom-discharging skip has also been widely adopted.

[0005] Traditional guide-wheel hook-type skips feature an integrated unloading drive guide wheel and safety hook located on the side of the skip. This results in significant component wear, a tight installation space, and a tendency for rock accumulation, making safety and reliability difficult to ensure. Large-section, high-volume skips utilize bottom rollers and curved roller tracks, which restrict the unloading motion trajectory and make it difficult to meet unloading design requirements.

[0006] In view of this, it is necessary to improve the skip structure and working method in the prior art to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to disclose a working method of a metallurgical skip, by separating the unloading drive wheel from the safety locking part, moving the safety locking part to the bottom of the skip, and adding reliable devices such as the safety system spring, eliminating the bottom supporting wheel and supporting wheel structure of the prior art, and replacing them with a supporting lever device to meet the design requirements of the gate unloading movement. The skip structure operates more safely, reliably and smoothly.

[0008] To achieve the above object, the present invention provides a working method of a metallurgical skip, based on a metallurgical skip, the skip comprising:

[0009] The frame bears the lifting load of the entire skip;

[0010] A bucket box is located between the side plates of the frame, and a rotating mechanism is provided at the top of the bucket box to form a rotation connection with the frame;

[0011] An unloading guide wheel is arranged on one side of the bucket box and close to the bottom end, serving as a fulcrum for applying external force, and is used to drive the bucket box to rotate and tilt relative to the frame to complete the unloading action;

[0012] The gate is located at the bottom of the bucket box and is rotatably connected to the bucket box via a rotating hinge;

[0013] A supporting lever mechanism is arranged between the gate and the chassis of the frame and is used to support the gate and the ore in the bucket during the rotation of the bucket. The supporting lever mechanism is H-shaped and includes:

[0014] Two support rods, the top of each support rod is hinged to the bottom of the gate via a first hinge seat, and the bottom of each support rod is hinged to the frame chassis via a second hinge seat;

[0015] A crossbar, arranged horizontally and connected between the two support rods, with a lock hook seat arranged on the crossbar;

[0016] A locking mechanism, used to lock the support lever mechanism, comprising:

[0017] A crank member, one end of which is formed with a lock hook that cooperates with the lock hook seat to lock, and the other end of which extends toward the outside of the frame and away from the unloading guide wheel, and is connected to a pressure wheel at the end;

[0018] A rotating shaft is provided through the crank member, and its two ends are fixedly connected to the two side plates of the frame respectively;

[0019] During the process of lifting the bucket, the pressure wheel is forced to drive the crank member to rotate with the rotating shaft as the rotation center, so that the locking hook is disengaged from the locking hook seat;

[0020] It also includes a spring mechanism, the bottom of which is hinged to the frame chassis and the top of which is hinged to the crank member, for applying a compressive preload force to the end of the crank member where the locking hook is located;

[0021] The following steps are involved:

[0022] S1, the bucket is pulled upward, and the pressure wheel of the locking mechanism is subjected to the pressure of the slope during the upward process, the crank member rotates around the rotating shaft as the rotation center, the locking hook is disengaged from the locking hook seat, and the locking mechanism releases the lock on the supporting lever mechanism;

[0023] S2, when the skip moves to the unloading point, the unloading guide wheel is pulled by the external force device to drive the bucket box to tilt and deflect, and the two support rods supporting the lever mechanism rotate with the first hinge seat and the second hinge seat as the rotation fulcrum, the gate opens, and the material in the bucket box is unloaded;

[0024] S3, after unloading is completed, the bucket box is pushed by an external force device, so that the bucket box and the gate are reset, the bucket moves downward, and the pressure wheel leaves the ramp. Under the action of the compression warning force of the spring mechanism, the crank member drives the lock hook to reset and cooperate with the lock hook seat to restore the locking of the support lever mechanism.

[0025] As a further improvement of the present invention, the rotation angle of the bucket box is between 0-50°.

[0026] As a further improvement of the present invention, baffles are provided on both sides of the gate, the baffles are arranged parallel to and spaced apart from the side plates of the frame, and the baffles and the gate together enclose a chute for the ore to fall.

[0027] As a further improvement of the present invention, a slope is provided on the rear side of the bucket box near the bottom end, so that the bottom end of the bucket box forms a contracting bell mouth toward the outlet.

[0028] As a further improvement of the present invention, the rotating hinge is arranged on the rear side of the slope and is rotatably connected between the rear bottom end of the bucket box and the baffle.

[0029] As a further improvement of the present invention, the top end of the frame is connected with a suspension device.

[0030] As a further improvement of the present invention, the rotating mechanism is a rotary bearing, the bucket box is suspended on the frame through the rotary bearing, and the rotary bearing is spaced apart from the center line of the bucket box.

[0031] As a further improvement of the present invention, the upper surface of the gate is formed with a slope inclined toward the side where the unloading guide wheel is located.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] (1) A working method for a metallurgical skip, wherein the unloading guide wheel is separated from the locking mechanism, the locking mechanism is moved to the bottom of the skip, a spring mechanism is added, the bottom supporting wheel and supporting wheel structure of the prior art are eliminated, and a supporting lever device is replaced to meet the design requirements of the gate unloading movement. The skip structure operates more safely, reliably and stably; the fulcrum position of the gate rotating around the bucket box is changed, a supporting lever mechanism is added to the bottom of the bucket box, the skip unloading operation curve is improved, and the blind spot area of the unloading ore flow impact is completely eliminated, thereby completely solving the problem of ore accumulation at the tail of the skip.

[0034] (2) Increase the slope of the upper surface of the gate, set a slope at the bottom of the rear side of the bucket box, improve the gate structure, change the position of the rotating fulcrum between the gate and the bucket box, reduce the gap between the gate and the tail of the bucket box during unloading, increase the gate unloading angle, thereby ensuring safety and reliability during unloading, and avoiding unclean unloading and ore spillage in the bucket.

[0035] (3) The simplified reciprocating motion structure of the locking mechanism ensures that the bucket box is safer and more reliable in more complex operating conditions and achieves complete locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of a main view of a metallurgical skip in a working method of the present invention;

[0037] Figure 2 A side view schematic diagram of a metallurgical skip in a working method of the present invention;

[0038] Figure 3 This is a schematic diagram of the positional relationship between a gate, a supporting lever mechanism, and a locking mechanism in a working method of a metallurgical skip according to the present invention;

[0039] Figure 4 This is a structural schematic diagram of a bucket box in a working method of a metallurgical skip according to the present invention;

[0040] Figure 5 This is a schematic diagram of the connection relationship between the supporting lever mechanism, the gate, and the frame chassis in a working method of a metallurgical skip according to the present invention;

[0041] Figure 6 The present invention provides a schematic structural diagram of a locking mechanism in a working method for a metallurgical skip.

[0042] In the figure: 1. frame; 2. bucket box; 3. rotating mechanism; 4. unloading guide wheel; 5. gate; 6. supporting lever mechanism; 7. locking mechanism; 8. suspension device; 9. spring mechanism; 21. ramp; 61. first articulated seat; 62. second articulated seat; 63. lock hook seat; 71. crank member; 72. lock hook; 73. pressure wheel; 74. rotating shaft. DETAILED DESCRIPTION

[0043] The present invention is described in detail below with reference to the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in this field based on these embodiments are all within the scope of protection of the present invention.

[0044] Please refer to Figures 1 to 6 A specific implementation of a working method of a metallurgical skip of the present invention is shown.

[0045] A metallurgical skip operating method is based on a metallurgical skip. The skip comprises: a frame 1, which bears the entire skip's lifting load and is a rigid structure composed of high-strength bolts and welds. A main suspension plate beam with a pin hole is installed between the beams of the upper plate of the frame 1 for connecting to a suspension device 8. The lower plate is provided with a tail rope beam. The main suspension beam, tail rope beam, each plate body, and column are connected using high-strength bolts or welding. The tail rope beam provided on the lower plate is connected to the tail rope beam via the suspension device 8. A steel tankway skip has a steel tank lug at each end of the upper and lower plates of the frame 1. A bucket box 2 is located between the side plates of the frame 1. A rotating mechanism 3 is provided at the top of the bucket box 2, which is rotatably connected to the frame 1. The rotating mechanism 3 is a rotary bearing, which suspends the bucket box 2 from the frame 1. To account for the need for tilting the bucket box 2 during unloading and the return torque caused by its own weight after unloading, the rotating bearing is spaced a certain distance from the centerline of the bucket box 2. The bucket box 2 is welded from steel plates and has transverse grooved ribs welded to the exterior to enhance its rigidity. The rotation angle of the bucket box 2 is between 0-50 degrees. The unloading guide wheel 4 is arranged on one side of the bucket box 2 and close to the bottom end. It serves as a fulcrum for applying external force and is used to drive the bucket box 2 to rotate and tilt relative to the frame 1 to complete the unloading action.

[0046] The gate 5 is located at the bottom of the bucket 2 and is rotatably connected to the bucket 2 via a rotating hinge. A slope 21 is provided at the bottom of the rear side of the bucket 2, forming a contracting bell mouth with the bottom end of the bucket 2 facing the outlet. The rotating hinge is arranged at the rear side of the slope 21 and is rotatably connected between the bottom end of the rear side of the bucket 2 and the baffle. This reduces the gap between the gate 5 and the tail of the bucket 2 during unloading, increases the unloading angle of the gate 5, and thus ensures safety and reliability during unloading, and avoids unclean unloading and ore spillage from the skip. The gate 5 is cushioned by wear-resistant steel plates and wooden blocks. Baffles are provided on both sides of the gate 5, which are arranged parallel to the side plates of the frame 1 at intervals. The baffles and the gate 5 together form a chute for the ore to fall, preventing the ore from leaking from the sides of the skip bottom. The upper surface of the gate 5 is formed with a slope inclined toward the side where the unloading guide wheel 4 is located.

[0047] The support lever mechanism 6 is arranged between the gate 5 and the chassis of the frame 1, and is used to support the gate 5 and the ore in the bucket box 2 during the rotation of the bucket box 2. The support lever mechanism 6 is H-shaped and includes: two support rods, the top of the support rod is hinged to the bottom of the gate 5 through a first hinge seat 61, and the bottom of the support rod is hinged to the chassis of the frame 1 through a second hinge seat 62; a cross bar, which is arranged horizontally and connected between the two support rods, and a lock hook seat 63 is arranged on the cross bar; a locking mechanism 7 for locking the support rods. The lever mechanism 6 is locked and comprises a crank member 71 having a lock hook 72 formed at one end thereof for locking with the lock hook seat 63, and the other end thereof extending toward the outside of the frame 1 and away from the unloading guide wheel 4, and connected to a pressure wheel 73 at the end thereof; a rotating shaft 74 passing through the crank member 71 and fixedly connected at both ends to the two side plates of the frame 1; during the process of lifting the bucket, the pressure wheel 73 is driven by the force to drive the crank member 71 to rotate about the rotating shaft 74 as the rotation center, thereby disengaging the lock hook 72 from the lock hook seat 63;

[0048] It also includes a spring mechanism 9, the bottom of which is hinged to the chassis of the frame 1 and the top of which is hinged to the crank member 71, and is used to apply a compressive preload force to the end of the crank member 71 where the lock hook 72 is located; it always ensures that the lock hook 72 is tightly pulled, making the locking mechanism 7 safer and more reliable.

[0049] The working method of the bucket comprises the following steps: S1, the bucket is pulled upward, the pressure wheel 73 of the locking mechanism 7 is subjected to the pressure of the ramp during the upward process, the crank member 71 rotates with the rotating shaft 74 as the rotation center, the locking hook 72 is disengaged from the locking hook seat 63, and the locking mechanism 7 releases the lock of the supporting lever mechanism 6; S2, when the bucket moves to the unloading point, the unloading guide wheel 4 is pulled by the external force device to drive the bucket box 2 to tilt and deflect, the two support rods of the supporting lever mechanism 6 rotate with the first hinge seat 61 and the second hinge seat 62 as the rotation fulcrum, the gate 5 opens, and the material in the bucket box 2 is unloaded; S3, after the unloading is completed, the bucket box 2 is pushed by the external force device so that the bucket box 2 and the gate 5 are reset, the bucket moves downward, the pressure wheel 73 disengages the ramp, and the crank member 71 drives the locking hook 72 to reset and cooperate with the locking hook seat 63 under the action of the compression warning force of the spring mechanism 9 to restore the locking of the supporting lever mechanism 6.

[0050] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A working method of a metallurgical skip, based on a metallurgical skip, the skip comprising: The frame bears the lifting load of the entire skip; A bucket box is located between the side plates of the frame, and a rotating mechanism is provided at the top of the bucket box to form a rotation connection with the frame; An unloading guide wheel is arranged on one side of the bucket box and close to the bottom end, serving as a fulcrum for applying external force, and is used to drive the bucket box to rotate and tilt relative to the frame to complete the unloading action; The gate is located at the bottom of the bucket box and is rotatably connected to the bucket box via a rotating hinge; A supporting lever mechanism is arranged between the gate and the chassis of the frame and is used to support the gate and the ore in the bucket during the rotation of the bucket. The supporting lever mechanism is H-shaped and includes: Two support rods, the top of each support rod is hinged to the bottom of the gate via a first hinge seat, and the bottom of each support rod is hinged to the frame chassis via a second hinge seat; A crossbar, arranged horizontally and connected between the two support rods, with a lock hook seat arranged on the crossbar; A locking mechanism, used to lock the support lever mechanism, comprising: A crank member, one end of which is formed with a lock hook that cooperates with the lock hook seat to lock, and the other end of which extends toward the outside of the frame and away from the unloading guide wheel, and is connected to a pressure wheel at the end; A rotating shaft is provided through the crank member, and its two ends are fixedly connected to the two side plates of the frame respectively; During the process of lifting the bucket, the pressure wheel is forced to drive the crank member to rotate with the rotating shaft as the rotation center, so that the locking hook is disengaged from the locking hook seat; It also includes a spring mechanism, the bottom of which is hinged to the frame chassis and the top of which is hinged to the crank member, for applying a compressive preload force to the end of the crank member where the locking hook is located; It is characterized in that it includes the following steps: S1, the bucket is pulled upward, and the pressure wheel of the locking mechanism is subjected to the pressure of the slope during the upward process, the crank member rotates around the rotating shaft as the rotation center, the locking hook is disengaged from the locking hook seat, and the locking mechanism releases the lock on the supporting lever mechanism; S2, when the skip moves to the unloading point, the unloading guide wheel is pulled by the external force device to drive the bucket box to tilt and deflect, and the two support rods supporting the lever mechanism rotate with the first hinge seat and the second hinge seat as the rotation fulcrum, the gate opens, and the material in the bucket box is unloaded; S3, after unloading is completed, the bucket box is pushed by an external force device, so that the bucket box and the gate are reset, the bucket moves downward, and the pressure wheel leaves the ramp. Under the action of the compression warning force of the spring mechanism, the crank member drives the lock hook to reset and cooperate with the lock hook seat to restore the locking of the support lever mechanism.

2. A metallurgical skip working method according to claim 1, characterized in that: The rotation angle of the bucket box is between 0-50 degrees.

3. A metallurgical skip working method according to claim 1, characterized in that: Baffles are provided on both sides of the gate, and the baffles are arranged in parallel and spaced apart from the side plates of the frame. The baffles and the gate together enclose a chute for the ore to fall.

4. A metallurgical skip working method according to claim 3, characterized in that: The rear side of the bucket box is provided with a slope near the bottom end, so that the bottom end of the bucket box forms a contraction bell mouth toward the outlet.

5. A metallurgical skip working method according to claim 4, characterized in that: The rotating hinge is arranged at the rear side of the slope and is rotatably connected between the rear bottom end of the bucket box and the baffle.

6. A metallurgical skip working method according to claim 1, characterized in that: The top end of the frame is connected with a suspension device.

7. A metallurgical skip working method according to claim 1, characterized in that: The rotating mechanism is a rotary bearing, the bucket box is hung on the frame through the rotary bearing, and the rotary bearing is spaced apart from the center line of the bucket box.

8. A metallurgical skip working method according to claim 1, characterized in that: The upper surface of the gate is formed with a slope inclined toward the side where the unloading guide wheel is located.

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