Abrasive machine maintenance scaffold

Abstract

The application discloses a kind of abrasive machine maintenance scaffold, by two groups of half-supports being symmetrically arranged on the two sides of abrasive machine barrel are spliced, the half-support includes: base, movably arranged on ground;Support, fixedly arranged on the top of the base;Arc guide rail, fixedly arranged on the support;Lifting assembly, slidingly arranged in the arc guide rail;Operation platform, hingedly arranged on the lifting assembly, for providing support plane for maintenance operator;Inclination adjusting member, arranged on the lifting assembly, for synchronously adjusting the inclination of the operation platform and horizontal plane during the lifting of the lifting assembly, so that the operation platform always remains horizontal state.The application sets up two groups of splicable half-supports, when the bolts on the abrasive machine barrel need to be removed, two groups of half-supports are first moved to the two sides of the barrel and then spliced, so that the bolts on the barrel camber can be removed with the help of half-supports, saving time and effort.

Description

Technical Field

[0001] This invention relates to the field of abrasive mill maintenance technology, specifically to an abrasive mill maintenance scaffold. Background Technology

[0002] A grinding mill is a common type of abrasive machinery used for crushing and mixing various materials. It is a rotating cylindrical device containing a certain number of abrasive balls. The rotating cylinder drives the material and the abrasive balls to be ground and mixed together inside the cylinder. Its working principle is as follows: the material is put into the rotating cylinder, and through the rotation of the cylinder and the impact and friction of the abrasive balls, the material is gradually ground into smaller particles. The ground material is discharged through the discharge port of the cylinder.

[0003] The liners of a grinding mill are installed on the inner wall of the cylinder. They mainly serve to protect the cylinder, improve grinding efficiency, control material discharge, and reduce noise and vibration. The materials used for the liners are usually high-hardness and wear-resistant materials, such as high-chromium cast iron and wear-resistant alloy steel. However, after long-term use, they will still experience significant wear and cannot maintain good grinding efficiency and quality. Therefore, maintenance workers need to replace the liners regularly. Removing the liners first requires removing the bolts used to fix them on the outer wall of the cylinder. However, for the large grinding mills currently in use, the cylinder size is large and the installation height is high. If maintenance workers want to remove the bolts on the arc-shaped outer wall of the cylinder, they need to use a lift and safety ropes to climb onto the outer wall of the cylinder. This operation is cumbersome and carries the risk of falling.

[0004] Therefore, this application proposes a scaffold for the maintenance of abrasive mills to solve the above-mentioned technical problems. Summary of the Invention

[0005] The main purpose of this invention is to overcome the above-mentioned shortcomings and provide a scaffold for the maintenance of abrasive mills, which facilitates maintenance workers in disassembling the bolts on the outer surface of the abrasive mill cylinder.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A scaffold for the maintenance of an abrasive mill is composed of two sets of semi-supports symmetrically arranged on both sides of the abrasive mill cylinder. Each semi-support includes: a base, movably mounted on the ground; a support, fixedly mounted on the top of the base; an arc-shaped guide rail, fixedly mounted on the support; a lifting assembly, slidably mounted in the arc-shaped guide rail; an operating platform, hinged to the lifting assembly, for providing a support plane for the maintenance operator; and an angle adjustment component, mounted on the lifting assembly, for synchronously adjusting the angle between the operating platform and the horizontal plane during the lifting process of the lifting assembly, so that the operating platform always remains horizontal.

[0008] Furthermore, let the radius of the grinding mill cylinder be r, and the inner radius of the arc-shaped guide rail be R. Let R > r, and the difference between R and r be greater than the distance by which the bolt on the cylinder protrudes from the arc surface of the cylinder. The central axis of the arc-shaped guide rail and the central axis of the grinding mill cylinder are at the same height and parallel to each other. The horizontal distance between the two central axes is a. Let the length of the operating platform also be a. The vertical distance between the midpoint of the operating platform near the grinding mill end and the grinding mill cylinder is a constant value L.

[0009] Furthermore, the lifting assembly includes a mounting base slidably inserted in the arc-shaped guide rail, a rack symmetrically arranged on the arc-shaped guide rail, a gear rotatably arranged on the mounting base and meshing with the rack, and a drive motor fixedly arranged on the mounting base and whose output shaft is kinetically connected to the rotation shaft of the gear.

[0010] Furthermore, the tilt adjustment component includes a winding disc disposed on one side of the gear and coaxial with the gear, and a cable with one end fixedly disposed on the top surface of the operating platform near the abrasive machine, and the other end wound in the winding disc.

[0011] Further, let the radius of the winding shaft of the winding disk be m, and let the pitch circle radius of the gear be n, let...

[0012] Furthermore, a damping rod is hinged to the operating platform, and the other end of the damping rod is hinged to the mounting base.

[0013] Furthermore, a gap is provided between the top surface of the base and the bottom of the grinding mill cylinder, and steps are provided on both sides of the base.

[0014] Furthermore, the operating platform is equipped with a one-way door, which can only be flipped to the top surface of the operating platform, and a ladder is provided on the base at the position corresponding to the one-way door.

[0015] Furthermore, the top of the arc-shaped guide rail is symmetrically provided with protective plates, and the side of the protective plate near the grinding mill cylinder is parallel to the arc surface of the cylinder.

[0016] Furthermore, at least four Mecanum wheels are symmetrically arranged at the bottom of the base.

[0017] The beneficial effects of this invention are reflected in:

[0018] 1. This invention uses two sets of connectable semi-supports. When it is necessary to remove the bolts on the grinding mill cylinder, the two sets of semi-supports are first moved to the two sides of the cylinder and then spliced ​​together. The bolts on the arc surface of the cylinder can be removed using the semi-supports. The bottom of the semi-supports is equipped with Mecanum wheels. After removing the bolts on a small section of the cylinder, the semi-supports are moved to the part of the cylinder where the bolts have not been removed, and the removal operation is repeated until all the bolts on the entire cylinder are removed. After the bolts are removed, the two sets of semi-supports can be disassembled again and moved away from the grinding mill cylinder to prevent interference with the normal operation of the grinding mill.

[0019] 2. This invention features an arc-shaped guide rail, a lifting assembly slidably mounted on the arc-shaped guide rail, and an operating platform hinged to the lifting assembly. The operating platform can be raised and lowered along the arc-shaped guide rail by the lifting assembly, allowing maintenance operators to stand on the operating platform to remove the bolts on both sides of the material cylinder. This method is time-saving, labor-saving, and highly safe.

[0020] 3. By setting up an angle adjustment component that is linked to the lifting assembly, the present invention ensures that the operating platform remains horizontal during the lifting process, providing a stable standing platform for maintenance operators and facilitating the removal of bolts on the material cylinder. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 3 This is a front view of the overall structure of the present invention;

[0025] Figure 4 This is a front view of the overall structure of the present invention;

[0026] Figure 5 For the present invention Figure 4 Enlarged view of the structure at point A;

[0027] Figure 6 This is a schematic diagram showing the disassembly of the two halves of the bracket of the present invention;

[0028] Figure 7 This is a schematic diagram of the semi-support structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the lifting component of the present invention;

[0030] Figure 9 This is a schematic diagram of the tilt adjustment component of the present invention;

[0031] Figure 10 This is a schematic diagram of the lifting component structure of the present invention;

[0032] Figure 11 This is a schematic diagram of the lifting component structure of the present invention;

[0033] Figure 12 This is a schematic diagram showing the placement of the Mecanum wheel according to the present invention.

[0034] In the diagram: 1. Half-frame; 2. Base; 3. Frame; 4. Arc-shaped guide rail; 5. Lifting assembly; 51. Mounting seat; 52. Rack; 53. Gear; 54. Drive motor; 6. Operating platform; 7. Tilt adjustment component; 71. Winding disc; 72. Cable; 8. Damping rod; 9. Steps; 10. One-way door; 11. Ladder; 12. Protective plate; 13. Mecanum wheel. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] like Figure 1-12 As shown, the present invention provides a scaffolding for the maintenance of an abrasive mill, which is composed of two sets of semi-supports 1 symmetrically arranged on both sides of the abrasive mill cylinder. The semi-supports 1 include:

[0037] Base 2 is movable and can be set on the ground;

[0038] The bracket 3 is fixedly installed on the top of the base 2;

[0039] The arc-shaped guide rail 4 is fixedly mounted on the bracket 3;

[0040] The lifting component 5 is slidably mounted in the arc-shaped guide rail 4;

[0041] The operating platform 6 is hinged to the lifting assembly 5 to provide a support plane for maintenance operators;

[0042] The tilt adjustment component 7 is installed on the lifting assembly 5 and is used to synchronously adjust the tilt angle between the operating platform 6 and the horizontal plane during the lifting process of the lifting assembly 5, so that the operating platform 6 always remains horizontal.

[0043] When it is necessary to remove the bolts on the grinding mill cylinder, first move the two sets of half-supports 1 to both sides of one end of the cylinder, and then assemble the two sets of half-supports 1 to form a whole. The maintenance operator can stand on the base 2 to remove the bolts at the bottom of the grinding mill cylinder. As the position of the bolts gradually rises along the arc surface of the cylinder, the maintenance operator cannot reach them. At this time, the maintenance operator needs to climb onto the operating platform 6. Under the drive of the lifting component 5, the operating platform 6 moves up and down along the arc-shaped guide rail 4 in an arc-shaped trajectory. The tilt adjustment component 7 can synchronously adjust the tilt angle between the operating platform 6 and the lifting component 5 during the lifting process of the operating platform 6, so that the operating platform 6 is level. Platform 6 remains horizontal, allowing the maintenance operator to stand on it. As platform 6 rises, the bolts on both sides of the cylinder are removed. When platform 6 reaches its highest point, the operator walks to the top of the cylinder. Due to the large radius of the cylinder and its relatively gentle curve at the top, the operator can easily stand on top and remove the bolts at that location, thus completing the removal of the bolts on a small section of the cylinder's outer wall. At this point, the two sets of half-supports 1 need to be moved along the cylinder's axis to the other end of the cylinder, and the above steps are repeated until the bolts on the entire outer wall of the cylinder are removed.

[0044] In one embodiment, such as Figure 4 As shown, let the radius of the grinding mill cylinder be r, and the inner radius of the arc-shaped guide rail 4 be R. Let R > r, and the difference between R and r be greater than the distance by which the bolts on the cylinder protrude from the arc surface of the cylinder. The central axis of the arc-shaped guide rail 4 is at the same height as the central axis of the grinding mill cylinder and is parallel to each other. The horizontal distance between the two central axes is a. Let the length of the operating platform 6 also be a. The vertical distance between the midpoint of the operating platform 6 near the grinding mill end and the grinding mill cylinder is a constant value L. With this design, under the premise that the operating platform 6 always remains horizontal, the movement trajectory of the operating platform 6 near the cylinder end during the lifting process can be arc-shaped. This arc-shaped trajectory is concentric with the cylinder, and the vertical distance between the operating platform 6 near the cylinder end and the arc surface of the cylinder is always L, thus facilitating the maintenance operator on the operating platform 6 to remove the bolts on the cylinder.

[0045] In one embodiment, the lifting assembly 5 includes a mounting base 51 slidably inserted into an arc-shaped guide rail 4, a rack 52 symmetrically arranged on the arc-shaped guide rail 4, a gear 53 rotatably mounted on the mounting base 51 and meshing with the rack 52, and a drive motor 54 fixedly mounted on the mounting base 51 with its output shaft connected to the rotation shaft of the gear 53. With this design, the drive motor 54 can drive the gear 53 to rotate, the gear 53 moves along the rack 52, and drives the mounting base 51 to slide along the arc-shaped guide rail 4, thereby achieving the lifting function. The rising and falling of the mounting base 51 is controlled by controlling the forward and reverse rotation of the motor.

[0046] In one embodiment, the tilt adjustment component 7 includes a winding disc 71 disposed on one side of the gear 53 and coaxial with the gear 53, and a cable 72 with one end fixed to the top surface of the operating platform 6 near the abrasive mill, and the other end wound in the winding disc 71. This design allows the lifting assembly 5 to rotate simultaneously with the gear 53 driven by the drive motor 54 during lifting. Since the winding disc 71 and gear 53 are coaxial, the winding disc 71 rotates synchronously with the gear 53 under the drive of the drive motor 54. When the lifting assembly 5 rises, the winding disc 71 winds up the cable 72, thereby pulling the operating platform 6 to rotate upwards around its hinge axis, thus counteracting the downward rotation tendency of the operating platform 6 and keeping it horizontal. When the lifting assembly 5 descends, the winding disc 71 releases the cable 72, and the operating platform 6, under its own weight and the weight of the personnel and goods carried on the operating platform 6, rotates downwards around its hinge axis, thereby counteracting the upward rotation tendency of the operating platform 6 and keeping it horizontal.

[0047] In one embodiment, let the radius of the winding shaft of the winding disk 71 be m, and let the pitch circle radius of the gear 53 be n, let... During the lifting and lowering process of the lifting assembly 5, the winding reel 71 synchronously winds up and unwinds the cable 72. This design of the winding shaft radius of the winding reel 71 ensures that the operating platform 6 remains horizontal under the adjustment of the tilt adjustment component 7. It should be noted that... The formula is used to determine the radius of the winding shaft of the winding disc 71. The cross-sectional size of the cable 72 should be minimized as much as possible to avoid the cable 72 being wound too thickly on the winding disc 71, which would affect the adjustment accuracy of the tilt adjustment component 7.

[0048] In one embodiment, a damping rod 8 is hinged to the operating platform 6, with the other end of the damping rod 8 hinged to the mounting base 51. This design provides some support for the operating platform 6 during tilt adjustment, making the operating platform 6 rotate more smoothly along the hinge axis.

[0049] In one embodiment, a gap is provided between the top surface of the base 2 and the bottom of the grinding mill cylinder, and steps 9 are provided on both sides of the base 2. With this design, maintenance operators can walk to the top surface of the base 2 via the steps 9 and remove the bolts at the bottom of the grinding mill cylinder from the base 2.

[0050] In one embodiment, the operating platform 6 is provided with a one-way door 10, which can only be flipped to the top surface of the operating platform 6. A ladder 11 is provided on the base 2 at a position corresponding to the one-way door 10. With this design, the maintenance operator can climb up the ladder 11 and push open the one-way door 10 to reach the upper surface of the operating platform 6. After closing the one-way door 10, the upper surface of the operating platform 6 can serve as the standing plane for the maintenance operator.

[0051] In one embodiment, protective plates 12 are symmetrically arranged on the top of the arc-shaped guide rail 4, with the side of the protective plate 12 near the grinding mill cylinder parallel to the arc surface of the cylinder. This design ensures the safety of maintenance operators when they ascend to the top arc surface of the grinding mill cylinder via the operating platform 6. The protective plates 12 prevent the operators from falling from either side of the semi-support 1. Placing the side of the protective plate 12 near the grinding mill cylinder parallel to the arc surface of the cylinder reduces the gap between the protective plate 12 and the cylinder's arc surface, thus providing better protection.

[0052] In one embodiment, at least four Mecanum wheels 13 are symmetrically arranged at the bottom of the base 2. This design allows the semi-support 1 to move smoothly in any direction on the ground, facilitating the assembly of two sets of semi-supports 1. Furthermore, when it is necessary to move the two assembled sets of semi-supports 1 along the central axis of the abrasive mill cylinder, this can be achieved by driving the Mecanum wheels 13 with a motor. It should be noted that to achieve the flexible movement of the Mecanum wheels 13, each Mecanum wheel 13 needs to be individually connected to a motor for driving.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0054] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0055] Furthermore, "multiple" refers to two or more. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

Claims

1. A scaffold for the maintenance of an abrasive mill, characterized in that, It is composed of two sets of semi-supports (1) symmetrically arranged on both sides of the grinding mill cylinder, wherein the semi-supports (1) include: The base (2) can be movably set on the ground; The bracket (3) is fixedly installed on the top of the base (2); An arc-shaped guide rail (4) is fixedly mounted on the bracket (3); The lifting assembly (5) is slidably disposed in the arc-shaped guide rail (4); The operating platform (6) is hinged on the lifting assembly (5) to provide a support plane for the maintenance operator; An angle adjustment component (7) is provided on the lifting assembly (5) and is used to synchronously adjust the angle between the operating platform (6) and the horizontal plane during the lifting process of the lifting assembly (5) so that the operating platform (6) always remains horizontal. Let the radius of the grinding mill cylinder be r, and the inner radius of the arc-shaped guide rail (4) be R. Let R > r, and the difference between R and r be greater than the distance of the bolt protruding from the arc surface of the cylinder. The central axis of the arc-shaped guide rail (4) and the central axis of the grinding mill cylinder are at the same height and parallel to each other. The horizontal distance between the two central axes is a. Let the length of the operating platform (6) also be a. The vertical distance between the midpoint of the operating platform (6) near the grinding mill end and the grinding mill cylinder is a constant value L. The lifting assembly (5) includes a mounting base (51) slidably inserted in the arc-shaped guide rail (4), a rack (52) symmetrically arranged on the arc-shaped guide rail (4), a gear (53) rotatably arranged on the mounting base (51) and meshing with the rack (52), and a drive motor (54) fixedly arranged on the mounting base (51) and whose output shaft is connected to the rotation shaft of the gear (53). The tilt adjustment component (7) includes a winding disc (71) disposed on one side of the gear (53) and coaxial with the gear (53), and a cable (72) with one end fixed on the top surface of the operating platform (6) near the abrasive mill, and the other end wound around the winding disc (71); let the radius of the winding shaft of the winding disc (71) be m, and let the radius of the pitch circle of the gear (53) be n, let... .

2. The abrasive mill maintenance scaffolding as described in claim 1, characterized in that, A damping rod (8) is hinged to the operating platform (6), and the other end of the damping rod (8) is hinged to the mounting base (51).

3. The abrasive mill maintenance scaffolding as described in claim 1, characterized in that, A gap is provided between the top surface of the base (2) and the bottom of the grinding mill cylinder, and steps (9) are provided on both sides of the base (2).

4. The abrasive mill maintenance scaffolding as described in claim 3, characterized in that, The operating platform (6) is provided with a one-way door (10), which can only be flipped to the top surface of the operating platform (6). A ladder (11) is provided on the base (2) at the position corresponding to the one-way door (10).

5. The abrasive mill maintenance scaffolding as described in claim 1, characterized in that, The top of the arc-shaped guide rail (4) is symmetrically provided with a protective plate (12), and the side of the protective plate (12) near the grinding mill cylinder is parallel to the arc surface of the cylinder.

6. The abrasive mill maintenance scaffolding as described in claim 1, characterized in that, The base (2) has at least four Mecanum wheels (13) symmetrically arranged at its bottom.

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