Construction method of wedge ring pad for rotary crusher

Abstract

To provide a construction method which allows a wedge ring pad to be provided in a simple manner to a wedge ring for a gyratory crusher.SOLUTION: In a construction method of a wedge ring pad 29 for a gyratory crusher, the wedge ring pad is provided on an outer peripheral surface of a wedge ring 28 interposed between a bowl 20 of the gyratory crusher and a support member 27 restricting inclination of the bowl 20, and is interposed between the wedge ring 28 and the support member 27. The construction method includes: a contact process for bringing a part in a circumferential direction of the wedge ring pad 29 provided with an adhesive material on a surface facing the wedge ring 28, into contact with the wedge ring 28; and a sticking process for applying pressing load to a pressing point B which is separated in the circumferential direction from a contact point A of the wedge ring 28 and the wedge ring pad 29, and for continuously sticking the wedge ring pad 29 onto the outer peripheral surface of the wedge ring 28, from the contact point A toward the pressing point B.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] This invention relates to a construction method for attaching a wedge ring pad to a wedge ring for a rotary crusher.

Background Art

[0002] When further finely crushing a workpiece that has been primarily crushed by a crusher such as a jaw crusher, a rotary crusher (cone crusher) may be used. As shown in, for example, Patent Document 1 below, this rotary crusher has a mantle 9 that rotates together with a main shaft 7, and a bowl liner 10 provided on a bowl (lifting cylinder) 21 that can move up and down with respect to a machine body frame 1. The crusher is configured to bite and crush a crushed material P such as rock between the mantle 9 and the bowl liner 10.

[0003] In a rotary crusher of the type shown in Patent Document 1, crushing is performed by continuously changing an outlet gap along the circumference between a bowl liner 10 supported by a bowl 21 and a rotating mantle 9. That is, crushing is performed at a portion where the outlet gap is minimized, and the crushed material P that has been crushed is discharged from a portion where the outlet gap facing the circumferential direction is maximized.

[0004] In a rotary crusher in which crushing is performed at a single location on the circumference of the mantle 9 and the bowl liner 10, due to the eccentric load associated with the crushing, the bowl 21 (corresponding to the piston of the annular hydraulic cylinder 22) that supports the bowl liner 10 is likely to be in a tilted state with respect to the upper frame 2 (corresponding to the cylinder of the annular hydraulic cylinder 22). When the bowl 21 tilts, the hard chromium plating layers formed on the outer peripheral surface of the bowl 21 and the inner peripheral surface of the upper frame 2 are damaged, and when the packings 23, 24, 25 provided on the bowl 21 and the upper frame 2 pass through this damaged position, there is a risk that the packings 23, 24, 25 will be damaged and the liquid tightness will decrease.

[0005] Therefore, as shown in FIG. 1 of the drawings of the present application, it is conceivable to provide a support member 27 that supports the outer peripheral portion at the upper part of the bowl 20 to prevent the bowl 20 from tipping over. This support member 27 has a cylindrical portion 27a and a flange portion 27b extending radially inward from the upper end portion of the cylindrical portion 27a, and this flange portion 27b is fixed to the upper end portion of the bowl 20 with screws (not shown). Inside the lower end portion of the cylindrical portion 27a, a wedge ring 28 is provided. This wedge ring 28 has a C-shaped configuration in a plan view with a notch 28a formed in a part of the circumferential direction, and can be expanded and contracted in the radial direction by the elasticity of the material. On its inner surface, a tapered surface 28b that expands in diameter upward is formed.

[0006] A hydraulic cylinder 30 is provided below the wedge ring 28. This hydraulic cylinder 30 is disposed on the flange 31 formed on the outer peripheral side of the upper frame 3, and the wedge ring 28 is pressed upward by a rod 30a that projects from and retracts into the main body of the hydraulic cylinder 30.

[0007] Inside the wedge ring 28, a fixing member 32 formed on the outer peripheral side of the packing retainer 25 is disposed so as to face it. On the outer surface of this fixing member 32, a tapered surface 32a that expands in diameter upward is formed. The tapered surface 28b formed on the wedge ring 28 and the tapered surface 32a formed on the fixing member 32 are in contact with each other. When the rod 30a of the hydraulic cylinder 30 is projected to press the wedge ring 28 upward, both tapered surfaces 28b and 32a come into strong contact, and by the contact force, the fixing member 32 is pressed radially inward and the support member 27 is pressed radially outward, respectively. By pressing in this way, the upper part of the bowl 20 is stabilized and tipping due to eccentric load is suppressed.

Prior Art Documents

Patent Documents

[0008]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0009] On the outer periphery of the wedge ring 28 shown in FIG. 1, a wedge ring pad 29 is provided between the wedge ring 28 and the support member 27. An adhesive is provided on the back surface of the wedge ring pad 29 (the surface facing the outer peripheral surface of the wedge ring 28). After being attached to the wedge ring 28, the sling belt is wound around and tightened until the adhesive hardens and is fixed.

[0010] However, this wedge ring 28 is large with a diameter of 1000 mm or more, and moreover, it is often necessary to arrange a plurality of wedge ring pads 29 side by side in the circumferential direction, and the pasting work is very troublesome. Also, depending on the tightening strength of the sling belt, a step may occur at the end of the wedge ring pad 29 (the joint of adjacent wedge ring pads 29), and the finished quality may vary depending on the skill of the operator.

[0011] Therefore, an object of the present invention is to provide a simple method for providing a wedge ring pad on a wedge ring for a rotary crusher.

Means for Solving the Problems

[0012] To solve the above problems, in the present invention, In a construction method of a wedge ring pad for a rotary crusher provided on the outer peripheral surface of a wedge ring interposed between a bowl of a rotary crusher and a support member that suppresses the tilting of the bowl, A contact step of bringing a part in the circumferential direction of the wedge ring pad provided with an adhesive on the surface facing the wedge ring into contact with the wedge ring, Apply a pressing load to a pressing point that is circumferentially separated from the contact point between the wedge ring and the wedge ring pad, and continuously attach the wedge ring pad to the outer peripheral surface of the wedge ring from the contact point toward the pressing point in a pasting step. A method for installing a wedge ring pad for a rotary crusher, which is characterized by having the above.

[0013] In this way, by applying a pressing load to the pressing point, the wedge ring pad can be simply and neatly attached to the outer peripheral surface of the wedge ring from the contact point toward the pressing point without causing wrinkles or the like.

[0014] In the above configuration, In the pasting step, apply a pressing load to the pressing points located on both circumferential sides of the wedge ring pad from the contact point, and attach the wedge ring pad to the outer peripheral surface of the wedge ring from the contact point toward the two pressing points. This is preferable.

[0015] In this way, by performing the pasting operation from the contact point toward the pressing points in both circumferential directions, the balance of the pressing loads in both circumferential directions can be achieved, and the operation can be performed more smoothly.

[0016] In the configuration of applying a pressing load to the pressing points located on both circumferential sides, In the pasting step, it is preferable to use a pressing member having an inner surface along the curvature of the outer peripheral surface of the wedge ring, and press the wedge ring pad toward the wedge ring at the pressing points at both circumferential ends of the pressing member.

[0017] In this way, by using a pressing member having an inner surface along the curvature of the outer peripheral surface of the wedge ring, at the completion of the pasting step, the wedge ring pad can be uniformly pressed against the wedge ring by the inner surface of this pressing member, and a good finished state can be ensured.

[0018] In the configuration using the pressing member, Corresponding to the position of the contact point, a threaded hole is formed in the outer peripheral surface of the wedge ring, and through holes are respectively formed in the wedge ring pad and the pressing member. A pressing bolt is screwed into the threaded hole formed in the outer peripheral surface of the wedge ring through the through holes formed in the wedge ring pad and the pressing member, and a nut is provided on the outer peripheral surface side of the pressing member of the pressing bolt. It is preferable to press the wedge ring pad toward the wedge ring through the screwing of the nut through the pressing member.

[0019] In this way, by screwing the nut, the pressing member can be easily pressed toward the wedge ring pad.

[0020] In the configuration of pressing by screwing a nut provided at the position of the contact point, Through holes are formed at both circumferential ends of the pressing member, and threaded holes are formed in the outer peripheral surface of the wedge ring corresponding to the positions of the through holes at both circumferential ends, and through holes are formed in the wedge ring pad. After the pasting step, fixing bolts are screwed into the threaded holes formed in the outer peripheral surface of the wedge ring through the through holes formed at both circumferential ends of the pressing member and the wedge ring pad, and nuts are provided on the outer peripheral surface side of the pressing member of the fixing bolts. It is preferable to press the wedge ring pad toward the wedge ring at both circumferential ends of the pressing member by screwing the nuts.

[0021] In this way, the pressing state of the wedge ring pad by the pressing member can be maintained, and a better finishing state can be ensured.

[0022] In the configuration of pressing with the pressing member by screwing a nut provided on the fixing bolt, It is preferable that the size of the through holes formed at both circumferential ends of the wedge ring pad is larger than the size of the through holes formed at the circumferential center thereof.

[0023] In this way, even if the wedge ring pad is slightly displaced in the circumferential direction by the pressing of the pressing member, the through holes formed in the pressing member (and the screw holes formed in the wedge ring) and the through holes formed in the wedge ring pad do not shift in the circumferential direction, and it is possible to prevent wrinkles from occurring in the wedge ring pad.

[0024] In the configuration using the pressing member, it is preferable to further provide a fixing member for sandwiching and fixing the wedge ring and the pressing member, and to have a fixing step of maintaining the fixed state of the wedge ring and the wedge ring pad until the adhesive provided on the wedge ring pad is cured by the fixing member.

[0025] In this way, by sandwiching the wedge ring and the pressing member with the fixing member, the pressing force is increased and the pressure can be applied uniformly, so that the wedge ring pad can be attached without unevenness in a short time.

[0026] Also, in the fixing step, it is preferable to first provide the fixing member at a position near the contact point, and sequentially provide it from this position toward both circumferential ends of the pressing member.

[0027] In this way, wrinkles are less likely to occur in the wedge ring pad during fixing with the fixing member, and a good finished state can be obtained.

Advantages of the Invention

[0028] In the method for installing a wedge ring pad for a rotary crusher according to the present invention, after bringing a part of the circumferential direction of the wedge ring pad provided with an adhesive on the surface facing the wedge ring into contact with the wedge ring, a pressing load is applied to a pressing point separated in the circumferential direction from the contact point between the wedge ring and the wedge ring pad, and the wedge ring pad is continuously attached to the outer peripheral surface of the wedge ring from the contact point toward the pressing point. Therefore, the wedge ring pad can be easily and neatly attached to the outer peripheral surface of the wedge ring from the contact point toward the pressing point without causing wrinkles or the like.

[0029] Further, by uniformly attaching the entire wedge ring pad, it is possible to prevent unevenness from occurring at the joints when a plurality of wedge ring pads are divided and attached in the circumferential direction of the wedge ring.

Brief Description of the Drawings

[0030]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Mode for Carrying Out the Invention

[0031] An example of a rotary crusher (cone crusher) will be described with reference to the drawings. The rotary crusher shown in Fig. 1 includes a machine body frame 1 composed of a lower frame 2 and an upper frame 3. The lower frame 2 has a cylindrical portion 5 that rotatably holds a rotary shaft 4 that rotates around a vertical axis at its center, and a holding portion 6 that extends horizontally outward from the cylindrical portion 5.

[0032] An inclined hole 7 inclined from the vertical direction is formed in the rotary shaft 4. The lower part of the main shaft 8 is rotatably inserted into the inclined hole 7, and the main shaft 8 rotates in a state eccentric to the rotary shaft 4. An inner bush 9 is provided between the inner surface of the inclined hole 7 and the outer surface of the main shaft 8. A mantle core 10 is provided on the main shaft 8, and a crushing mantle 11 is provided on the surface of the mantle core 10.

[0033] The rotary shaft 4 is supported by a bearing 12 provided at the lower part of the cylindrical portion 5, and is rotated by being given a driving force from a driving machine (not shown) via a pulley 13, a bevel gear 14, etc. An outer bush 15 is provided between the outer surface of the rotary shaft 4 and the inner surface of the cylindrical portion 5. When the rotary shaft 4 rotates, the mantle 11 (mantle core 10) provided on the main shaft 8 that is eccentric to the rotary shaft 4 rotates in a swirling motion.

[0034] On the bottom surface of the mantle core 10, a spherical surface portion 16 formed of a part of a spherical surface is formed. This spherical surface portion 16 is rotatably supported by a thrust portion 17 fixed to the upper portion of the cylindrical portion 5 of the airframe frame 1. A skirt portion 18 is formed on the outer peripheral edge of the mantle core 10. At the lower end of this skirt portion 18, a sealing portion 19 is provided to prevent the intrusion of dust into the lower side of the mantle core 10 and the leakage of lubricating oil to the outside.

[0035] Inside the upper frame 3, a cylindrical bowl 20 is provided. An annular hydraulic cylinder 21 extending over the entire circumference in the circumferential direction is provided between the upper frame 3 and the bowl 20. This hydraulic cylinder 21 is of a double-acting type having an upper hydraulic chamber 21a and a lower hydraulic chamber 21b, and the bowl 20 can be moved up and down by supplying and discharging hydraulic oil to and from both hydraulic chambers 21a and 21b. Inside the bowl 20, a bowl liner 22 facing the mantle 11 is provided, and as shown in FIGS. 2(a) and 2(b), by moving the bowl 20 up and down, the size of the gap s between the mantle 11 and the bowl liner 22 can be adjusted.

[0036] Packings 23 and 24 are provided between the upper frame 3 and the bowl 20. Also, a packing 26 is similarly provided between a packing retainer 25 fixed to the upper end of the upper frame 3 and the bowl 20. These packings 23, 24, and 26 prevent the leakage of hydraulic oil and the intrusion of dust into the hydraulic cylinder 21.

[0037] As shown in FIGS. 1 and 2, a support member 27 for suppressing the tipping of the bowl 20 is provided at the upper end of the bowl 20. This support member 27 has a cylindrical portion 27a and a flange portion 27b extending radially inward from the upper end portion of the cylindrical portion 27a. The flange portion 27b is fixed to the upper end portion of the bowl 20 with screws (not shown). A wedge ring 28 is provided inside the lower end portion of the cylindrical portion 27a. As shown in FIG. 3, this wedge ring 28 has a C-shaped cross section in plan view with a notch 28a formed in a part of the circumferential direction, and can expand and contract in the radial direction due to the elasticity of the material. A tapered surface 28b that expands in diameter toward the upper side is formed on the inner surface thereof.

[0038] On the outer peripheral side of the wedge ring 28, wedge ring pads 29 interposed between the cylindrical portion 27a of the support member 27 and the wedge ring 28 are attached in two upper and lower stages with an adhesive. In this rotary crusher, as the wedge ring pads 29, four strip-shaped phenolic resin-based resin materials, each four in number for the upper and lower parts, which divide the outer peripheral length of the wedge ring 28 into approximately four equal parts, are used, but the material, shape, number of uses, etc. may be changed.

[0039] A hydraulic cylinder 30 is provided below the wedge ring 28. This hydraulic cylinder 30 is disposed on a flange 31 formed on the outer peripheral side of the upper frame 3. The wedge ring 28 is pressed upward by a rod 30a that projects from and retracts into the main body of the hydraulic cylinder 30.

[0040] Inside the wedge ring 28, a fixing member 32 formed on the outer peripheral side of the packing retainer 25 is disposed so as to face it. A tapered surface 32a that expands in diameter toward the upper side is formed on the outer surface of this fixing member 32. The tapered surface 28b formed on the wedge ring 28 and the tapered surface 32a formed on the fixing member 32 are in contact with each other. When the rod 30a of the hydraulic cylinder 30 is projected to press the wedge ring 28 upward, both tapered surfaces 28b and 32a come into strong contact, and due to the contact force, the fixing member 32 is pressed radially inward and the support member 27 is pressed radially outward, respectively.

[0041] A position sensor 33 is provided at the upper end of the lower frame 2. A contact 33a provided at the upper end of this position sensor 33 is in contact with the lower end of the cylindrical portion 27a of the support member 27. By means of this position sensor 33, the amount of elevation and depression of the bowl 20 with respect to the lower frame 2 (the size of the gap s between the mantle 11 and the bowl liner 22) can be detected.

[0042] Inside the flange portion 27b of the support member 27, a hopper 34 for charging the material P to be crushed is provided. When the material P to be crushed is charged into this hopper 34 and the rotary shaft 4 is rotated, the mantle core 10 rotates in a swirling motion via the main shaft 8. Then, the material P to be crushed such as rock is bitten between the mantle 11 and the bowl liner 22, and the crushed material P' crushed to a predetermined size is discharged from the gap s between the mantle 11 and the bowl liner 22. As the mantle 11 and the bowl liner 22 wear due to crushing and the size of the gap s between them changes, at that time, the bowl liner 22 is elevated and depressed with respect to the mantle 11 by operating the hydraulic cylinder 21 to keep the size of the gap s constant.

[0043] During this crushing, an eccentric load acts on the bowl 20 (bowl liner 22). By operating the hydraulic cylinder 30 to press the fixing member 32 inward in the radial direction and the support member 27 outward in the radial direction respectively, the upper part of the bowl 20 can be stabilized and the tilting of the bowl 20 due to the eccentric load can be suppressed.

[0044] The construction method of the wedge ring pad 29 on the wedge ring 28 will be described with reference to FIGS. 4 to 6. This construction method has a contact process, an attachment process, and a fixing process.

[0045] The contact process is a process of bringing a part of the circumferential direction of the wedge ring pad 29, which has a curvature smaller than the curvature of the outer periphery of the wedge ring 28 and is provided with an adhesive on the surface facing the wedge ring 28, into contact with the wedge ring 28, as shown in FIGS. 4(a), 5(a), and 6(a). In this embodiment, a flat plate-shaped (with a curvature of approximately 0) and long (with a length of about 1 / 4 of the outer peripheral length of the wedge ring 28) wedge ring pad 29 is used, and approximately the center in the length direction thereof is brought into contact with a point on the outer periphery of the wedge ring 28 (hereinafter, this point is referred to as the contact point A). Further, a pressing member 35 having an inner surface along the curvature of the outer peripheral surface of the wedge ring 28 is arranged so as to straddle the contact point A. The circumferential length of this pressing member 35 is about 1 / 4 of the outer peripheral length of the wedge ring 28.

[0046] Corresponding to the position of the contact point A, a threaded hole is formed in the outer peripheral surface of the wedge ring 28, and through holes are respectively formed in the wedge ring pad 29 and the pressing member 35. Then, a pressing bolt 36 (a split bolt) is screwed into the threaded hole through both through holes, and a nut 37 is provided on the outer peripheral surface side of the pressing member 35 of the pressing bolt 36. At this time, both ends of the pressing member 35 are in contact with the wedge ring pad 29 at a point in the circumferential direction (hereinafter, these points are referred to as the pressing points B). Legs 38 for floating the wedge ring 28 from the ground to facilitate work are attached to the bottom surface of the wedge ring 28.

[0047] The pasting process is a process of applying a pressing load to the pressing points B separated in the circumferential direction from the contact point A between the wedge ring 28 and the wedge ring pad 29, and continuously pasting the wedge ring pad 29 onto the outer peripheral surface of the wedge ring 28 while gradually deforming it from the contact point A toward the pressing points B, as shown in FIGS. 4(b), 5(b), and 6(b). In this embodiment, the nut 37 provided on the pressing bolt 36 is screwed in to bring the pressing member 35 closer to the wedge ring 28, thereby applying a pressing load to the pressing points B at both ends in the circumferential direction of the pressing member 35, and pasting the wedge ring pad 29 from the contact point A toward both pressing points B.

[0048] Through holes are formed at both circumferential ends of the pressing member 35, screw holes are formed on the outer peripheral surface of the wedge ring 28 corresponding to the positions of the through holes at both circumferential ends, and through holes are formed in the wedge ring pad 29, respectively. The through holes at both circumferential ends of the wedge ring pad 29 are formed larger than the through holes at the position of the circumferential center portion (contact point A). By doing so, even when the wedge ring pad 29 extends (deforms) in its circumferential direction with the pressing of the pressing member 35, it is possible to suppress the occurrence of wrinkles in the wedge ring pad 29. The through holes at both circumferential ends of the wedge ring pad 29 may be elongated holes extending in the circumferential direction.

[0049] When the nut 37 provided on the pressing bolt 36 is fully tightened, as shown in FIGS. 4(c), 5(c), and 6(c), the wedge ring pad 29 is deformed and attached along the outer periphery of the wedge ring 28. In this state, while screwing the fixing bolt 39 (split bolt) into the screw holes formed on the outer peripheral surfaces at both circumferential ends of the wedge ring 28 through the through holes formed at both circumferential ends of the pressing member 35 and the wedge ring pad 29, a nut 40 is provided on the outer peripheral surface side of the pressing member 35 of the fixing bolt 39. Then, when this nut 40 is fully screwed in, the wedge ring pad 29 is pressed toward the outer peripheral surface of the wedge ring 28 by the pressing member 35.

[0050] In this embodiment, by using the pressing member 35 having an inner surface along the curvature of the outer peripheral surface of the wedge ring 28, it is possible to press the entire circumferential direction of the wedge ring pad 29 against the outer peripheral surface of the wedge ring 28 by this pressing member 35. However, as long as the wedge ring pad 29 can be attached to the outer peripheral surface of the wedge ring 28 while being deformed, for example, there is also a possibility that a configuration in which the wedge ring pad 29 is pressed against the wedge ring 28 by a pressing member 35 having a U-shaped cross section in plan view can be adopted.

[0051] The fixing process is a process of providing a fixing member 41 that sandwiches and fixes the wedge ring 28 and the pressing member 35, and maintaining the fixed state of the wedge ring 28 and the wedge ring pad 29 until the adhesive provided on the wedge ring pad 29 cures with this fixing member 41. In this embodiment, a vise is adopted as the fixing member 41.

[0052] This fixing member 41 is first provided at a position near the contact point A. Then, a plurality of them are sequentially provided from this position toward both circumferential ends of the pressing member 35. By doing so, it is possible to suppress the occurrence of wrinkles in the wedge ring pad 29 during the fixing operation with the fixing member 41. Note that this fixing process may be omitted, for example, when a quick-drying adhesive is used for attaching the wedge ring pad 29.

[0053] After the adhesive has cured in the fixing process, as shown in FIGS. 4(e), 5(d), and 6(e), after removing the pressing member 35, the fixing member 41, the pressing bolt 36, and the fixing bolt 39, at other locations on the outer periphery of the wedge ring 28, the above contact process, pasting process, and fixing process are repeated. After the wedge ring pads 29 are attached to the entire circumference of the wedge ring 28, the leg portion 38 provided on the bottom surface of the wedge ring 28 is removed to complete the series of processes.

[0054] The embodiments disclosed this time should be considered as illustrative in all respects and not restrictive. Therefore, the scope of the present invention is shown not by the above description but by the claims, and it is intended that the claims include the meaning equivalent to the claims and all modifications.

Explanation of Reference Numerals

[0055] 1 Body frame 2 Lower frame 3 Upper frame 4 Rotation axis 5 Cylindrical portion 6 Holding portion 7 Inclined hole 8 Main shaft 9 Inner Bush 10 Mantle Core 11 Crushing Mantle 12 Bearing 13 Pulley 14 Bevel Gear 15 Outer Bush 16 Spherical Surface Part 17 Thrust Part 18 Skirt Part 19 Sealing Part 20 Bowl 21 Hydraulic Cylinder 21a Upper Hydraulic Chamber 21b Lower Hydraulic Chamber 22 Bowl Liner 23, 24, 26 Packing 25 Packing Retainer 27 Support Member 27a Cylindrical Part 27b Flange Part 28 Wedge Ring 28a Notch 28b Tapered Surface 29 Wedge Ring Pad 30 Hydraulic Cylinder 30a Rod 31 Flange 32 Fixed Member 32a Tapered Surface 33 Position Sensor 33a Contact 34 Hopper 35 Pressing Member 36 Pressing Bolt 37, 40 Nut 38 Leg Part 39 Fixed Bolt 41 Fixed Member P Material to be Crushed P’ Crushed Material A Contact Point B Pressing Point

Claims

1. It is provided on the outer peripheral surface of a wedge ring (28) interposed between a bowl (20) of a rotary crusher and a support member (27) that suppresses the tilting of the bowl (20). In a method for installing a wedge ring pad (29) for a rotary crusher interposed between the wedge ring (28) and the support member (27), A contact step of bringing a part in the circumferential direction of the wedge ring pad (29) provided with an adhesive on the surface facing the wedge ring (28) into contact with the wedge ring (28); A pressing load is applied to a pressing point (B) separated in the circumferential direction from a contact point (A) between the wedge ring (28) and the wedge ring pad (29), and from the contact point (A) toward the pressing point (B), the wedge ring pad (29) is continuously attached to the outer peripheral surface of the wedge ring (28). An attaching step; A method for installing a wedge ring pad for a rotary crusher, characterized by comprising the above.

2. In the attaching step, a pressing load is applied to the pressing points (B) located on both sides in the circumferential direction of the wedge ring pad (29) from the contact point (A), and from the contact point (A) toward the both pressing points (B), the wedge ring pad (29) is attached to the outer peripheral surface of the wedge ring (28). The method for installing a wedge ring pad for a rotary crusher according to claim 1.

3. In the attaching step, a pressing member (35) having an inner surface along the curvature of the outer peripheral surface of the wedge ring (28) is used, and the wedge ring pad (29) is pressed toward the wedge ring (28) at the pressing points (B) at both ends in the circumferential direction of the pressing member (35). The method for installing a wedge ring pad for a rotary crusher according to claim 2.

4. Corresponding to the position of the contact point (A), a threaded hole is formed on the outer peripheral surface of the wedge ring (28), and through holes are formed in the wedge ring pad (29) and the pressing member (35) respectively. A pressing bolt (36) is screwed into the threaded hole formed on the outer peripheral surface of the wedge ring (28) through the through holes formed in the wedge ring pad (29) and the pressing member (35), and a nut (37) is provided on the outer peripheral surface side of the pressing member (35) of the pressing bolt (36). By screwing the nut (37), the wedge ring pad (29) is pressed toward the wedge ring (28) through the pressing member (35). The method for installing a wedge ring pad for a rotary crusher according to claim 3.

5. Through holes are formed at both circumferential ends of the pressing member (35), and threaded holes are formed on the outer peripheral surface of the wedge ring (28) corresponding to the positions of the through holes at both circumferential ends. Through holes are formed in the wedge ring pad (29) respectively. After the pasting step, a fixing bolt (39) is screwed into the threaded hole formed on the outer peripheral surface of the wedge ring (28) through the through holes formed at both circumferential ends of the pressing member (35) and the wedge ring pad (29), and a nut (40) is provided on the outer peripheral surface side of the pressing member (35) of the fixing bolt (39). By screwing the nut (40), the wedge ring pad (29) is pressed toward the wedge ring (28) at both circumferential ends of the pressing member (35). The method for installing a wedge ring pad for a rotary crusher according to claim 4.

6. The size of the through holes formed at both circumferential ends of the wedge ring pad (29) is larger than the size of the through holes formed at the circumferential center thereof. The method for installing a wedge ring pad for a rotary crusher according to claim 5.

7. A fixing member (41) is provided for sandwiching and fixing the wedge ring (28) and the pressing member (35), and the fixing member (41) maintains the fixed state of the wedge ring (28) and the wedge ring pad (29) until the adhesive provided on the wedge ring pad (29) cures. The method for installing a wedge ring pad for a rotary crusher according to any one of claims 3 to 6, further comprising a fixing step.

8. In the fixing step, the fixing member (41) is first provided at a position near the contact point (A), and is sequentially provided from this position toward both circumferential ends of the pressing member (35). The method for installing a wedge ring pad for a rotary crusher according to claim 7.

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