Crusher rotor disc protection sleeve

Abstract

The utility model relates to the technical field of crusher maintenance, especially to a crusher rotor disc protection sleeve, which comprises side guards and a circumferential guard, the side guards are arranged in parallel and in a fan shape, a gap for accommodating the rotor disc is arranged between the two side guards, the circumferential guard is fixedly connected between the outer edges of the two side guards and is in an arc shape, mounting holes for the pin shafts are formed in the side guards, and the mounting holes are arranged in correspondence with the pin shaft holes on the rotor disc. The protection sleeve composed of the side guards and the circumferential guard is installed on the outer edge of the rotor disc, which plays a daily protection effect on the rotor disc, prolongs the service life of the rotor disc, and reduces the maintenance cost of the rotor disc.

Description

Technical Field

[0001] This utility model relates to the field of crusher maintenance technology, and in particular to a protective sleeve for a crusher rotor disc. Background Technology

[0002] Hammer crushers, including dual-rotor and single-rotor types, generally employ a structure where a main shaft drives several rotor discs to rotate. Multiple pins are evenly spaced circumferentially between the rotor discs, and hammers are mounted on these pins. The rotation of the rotor discs swings the hammers, which, in conjunction with the crushing chamber, crush the ore. After a period of use, the rotor discs are prone to deformation and wear due to high-intensity impacts, leading to a shortened lifespan and replacement cycle of the rotor discs, as well as increased maintenance costs. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the present invention provides a protective sleeve for a crusher rotor disc.

[0004] The present invention provides a protective sleeve for a crusher rotor disc, which adopts the following technical solution: A protective sleeve for a crusher rotor disc includes side guard plates and peripheral guard plates. Two side guard plates are arranged in parallel and are fan-shaped. A gap is provided between the two side guard plates to accommodate the rotor disc. The peripheral guard plate is fixed between the outer edges of the two side guard plates and is arc-shaped. The side guard plates are provided with mounting holes for pin shafts to pass through. The mounting holes are corresponding to the pin shaft holes on the rotor disc.

[0005] By adopting the above technical solution, the protective sleeve composed of the side guard plate and the peripheral guard plate is installed on the outer edge of the rotor disk, which plays a daily protection role for the rotor disk, not only extending the service life of the rotor disk, but also reducing the maintenance cost of the rotor disk.

[0006] Preferably, a rod is vertically fixed between the inner walls of the two side guard plates. The rotor disk has an installation groove and a limiting groove for the rod to slide into at the position between two adjacent pin holes. The installation groove extends from the outer edge of the rotor disk to the inside, and the outer end of the installation groove passes through the outer edge of the rotor disk. The limiting groove extends in the circumferential direction with the center of the rotor disk as the center and the inner end of the installation groove as the starting point.

[0007] By adopting the above technical solution, when installing the protective sleeve, the insertion rod enters the installation groove and the limiting groove in sequence, and the insertion rod is hooked on the rotor disc, which achieves the effect of accurate positioning during the installation process.

[0008] Preferably, there are two insertion rods located on the left and right sides of the mounting hole, with the two insertion rods on the same circumference. The mounting slots are arranged in groups of two, and there are multiple groups. The two mounting slots in each group are arranged in parallel.

[0009] By adopting the above technical solution, the two insertion rods effectively improve the stability of the protective sleeve installation.

[0010] Preferably, semi-circular clearance holes are provided at the end edges of the left and right ends of the side guard plate.

[0011] By adopting the above technical solution, the clearance holes in two adjacent protective sleeves can be combined to form a circular hole for fitting with the pin hole, making it easy for the pin to pass through normally.

[0012] Preferably, each rotor disc is equipped with four protective sleeves, and the four protective sleeves are evenly distributed around the rotor disc.

[0013] By adopting the above technical solution, the four protective sleeves can be assembled simultaneously and provide comprehensive protection for the outer edge of the rotor disk. Attached Figure Description

[0014] Figure 1 This is a front view of the protective sleeve in an embodiment of this utility model.

[0015] Figure 2 yes Figure 1 Sectional view along the AA direction.

[0016] Figure 3 This is a schematic diagram of the first step in the installation of the protective cover in this embodiment of the utility model.

[0017] Figure 4 This is a schematic diagram of step two of the protective cover installation in this embodiment of the present invention.

[0018] Figure 5 This is a schematic diagram of the protective cover after installation in an embodiment of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Rotor disc; 11. Main shaft hole; 12. Pin hole; 13. Mounting groove; 14. Limiting groove; 2. Side guard plate; 21. Mounting hole; 22. Clearance hole; 3. Peripheral guard plate; 4. Insert rod. Detailed Implementation

[0020] The following combination Figures 1-5 The present invention will be described in further detail below.

[0021] This utility model discloses a protective sleeve for a crusher rotor disc. The protective sleeve is detachably installed on the rotor disc 1, with four protective sleeves installed on each rotor disc 1, and the four protective sleeves are evenly arranged around the rotor disc 1. The protective sleeve can be made of cast steel or manganese steel, and includes side guard plates 2 and peripheral guard plates 3. Two side guard plates 2 are arranged in parallel and are fan-shaped, and the peripheral guard plate 3 is fixed between the outer edges of the two side guard plates 2 and is arc-shaped. A circular mounting hole 21 is opened at the center of the side guard plate 2, and semi-circular clearance holes 22 are opened at the end edges of the left and right ends of the side guard plate 2.

[0022] Two insert rods 4 are vertically fixed between the inner walls of the two side guard plates 2. The two insert rods 4 are symmetrically arranged on the left and right sides of the mounting hole 21, and the two insert rods 4 are located on the same circumference. A spindle hole 11 for the main shaft to pass through is opened in the center of the rotor disk 1. The main shaft is keyed to the rotor disk 1 through the spindle hole 11. A plurality of pin holes 12 are evenly opened around the spindle hole 11 on the rotor disk 1. Pins for mounting hammers can be inserted into the pin holes 12.

[0023] An installation groove 13 is provided on the rotor disk 1 from the outside to the inside at the position between two adjacent pin holes 12. The outer end of the installation groove 13 penetrates the outer peripheral wall of the rotor disk 1. Two installation grooves 13 are set as a group, and a total of four groups are provided. The two installation grooves 13 in each group are arranged in parallel, and the installation grooves 13 in any two adjacent groups are perpendicular to each other. A limiting groove 14 is also provided on the rotor disk 1 at the position between two adjacent pin holes 12. The limiting groove 14 is connected to the inner end of the installation groove 13. The limiting groove 14 extends in the circumferential direction with the center of the rotor disk 1 as the center and the inner end of the installation groove 13 as the starting point.

[0024] The implementation principle of the crusher rotor disc protective sleeve in this embodiment of the utility model is as follows: align the four protective sleeves with the four sets of mounting slots 13, then install the protective sleeves onto the rotor disc 1, so that the insert rod 4 slides into the mounting slot 13, and then rotate the four protective sleeves synchronously in the direction of extension of the limiting slot 14, so that the insert rod 4 moves into the end of the limiting slot 14 until it can no longer move. At this time, the mounting hole 21 coincides with the pin hole 12, and the clearance holes 22 of two adjacent protective sleeves are joined together to form a complete circular hole and the joining hole coincides with another pin hole 12.

[0025] Pins are inserted into the pin holes 12 of multiple rotor discs 1, and hammers are installed simultaneously. The protective sleeve is firmly fixed to the rotor disc 1 by the pins and the insert rod 4, providing daily protection for the rotor disc 1. Alternatively, mounting bolts can be inserted into the mounting holes 21 where no pins are inserted to fix the protective sleeve to the rotor disc 1. The use of the protective sleeve not only extends the service life of the rotor disc 1 but also reduces the maintenance cost of the rotor disc 1.

[0026] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A protective sleeve for a crusher rotor disc, characterized in that: Includes side guard plates (2) and peripheral guard plates (3). Two side guard plates (2) are arranged in parallel and are fan-shaped. A gap is provided between the two side guard plates (2) to accommodate the rotor disk (1). The peripheral guard plate (3) is fixed between the outer edges of the two side guard plates (2) and is arc-shaped. The side guard plates (2) have mounting holes (21) for pin shafts to pass through. The mounting holes (21) are corresponding to the pin shaft holes (12) on the rotor disk (1). The inner walls of the two side guard plates (2) are... A rod (4) is fixed vertically between the rotor disk (1). The rotor disk (1) has an installation groove (13) and a limiting groove (14) for the rod (4) to slide into at the position between two adjacent pin holes (12). The installation groove (13) extends from the outer edge of the rotor disk (1) to the inside. The outer end of the installation groove (13) passes through the outer edge of the rotor disk (1). The limiting groove (14) extends in the circumferential direction with the center of the rotor disk (1) as the center and the inner end of the installation groove (13) as the starting point.

2. The crusher rotor disc protective sleeve according to claim 1, characterized in that: There are two insertion rods (4) located on the left and right sides of the mounting hole (21). The two insertion rods (4) are located on the same circumference. There are multiple sets of mounting slots (13) in pairs. The two mounting slots (13) in each set are arranged in parallel.

3. The crusher rotor disc protective sleeve according to claim 1, characterized in that: Semi-circular clearance holes (22) are provided at the end edges of the left and right ends of the side guard plate (2).

4. The crusher rotor disc protective sleeve according to any one of claims 1-3, characterized in that: Each rotor disk (1) is equipped with four protective sleeves, and the four protective sleeves are evenly arranged around the rotor disk (1).

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