Hammer crusher rotor assembly and hammer crusher

Abstract

The application provides a hammer crusher rotor assembly and a hammer crusher device, and relates to the technical field of hammer crusher devices.The hammer crusher rotor assembly comprises a main shaft and a fixed disc arranged on the main shaft, a plurality of fixed discs are arranged at intervals along the axial direction of the main shaft, and the hammer crusher rotor assembly further comprises a hammering assembly.The hammering assembly comprises a transition mounting unit and a hammer head hammer arm.The first end of the transition mounting unit is fixedly arranged on the fixed disc, and the second end of the transition mounting unit is hingedly arranged with the hammer head hammer arm.The transition mounting unit is detachably connected with the fixed disc, and the transition mounting unit is detachably connected with the hammer head hammer arm.The hammer crusher rotor assembly provided by the application avoids the technical problem that the hole diameter at the hinged position of the fixed disc and the hammer head hammer arm of the existing hammer crusher is prone to being damaged.

Description

Technical Field

[0001] This invention relates to the field of hammer crushing equipment technology, and in particular to a hammer crusher rotor assembly and a hammer crushing device. Background Technology

[0002] Hammer crushers are equipment that crush materials by impact. They are widely used in industries such as cement, chemical, power, and metallurgy for crushing medium-hard materials, such as limestone, slag, coke, and coal, for medium and fine crushing operations.

[0003] However, in existing hammer crushers, the hammer head and hammer arm are directly hinged to the fixed plate, which is positioned on the rotating shaft. The hammer head and hammer arm are movably connected to the fixed plate. During use, the aperture at the hinge position between the fixed plate and the hammer head and hammer arm is prone to become larger, the fixed plate is easily damaged and difficult to replace.

[0004] Therefore, it is necessary to provide a hammer crusher rotor assembly to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a rotor assembly for a hammer crusher, which solves the technical problem that the aperture at the hinge position between the fixed disc and the hammer head / arm in existing hammer crushers is prone to increase and the fixed disc is easily damaged.

[0006] To solve the above-mentioned technical problems, the present invention provides a hammer crusher rotor assembly, including a main shaft and a fixed disk mounted on the main shaft. Multiple fixed disks are arranged at intervals along the axial direction of the main shaft. The assembly also includes a hammering component, which includes a transition mounting unit and a hammer head and hammer arm. The first end of the transition mounting unit is fixedly mounted on the fixed disk, and the second end of the transition mounting unit is hingedly mounted with the hammer head and hammer arm. The transition mounting unit is detachably connected to the fixed disk and the hammer head and hammer arm.

[0007] Furthermore, the fixed plate is provided with a locating pin hole that runs through the axial direction. The transition installation unit includes a transition connecting plate, a transition fastener, a locating pin shaft, and a transition seal. The two transition connecting plates are arranged opposite each other on the axial sides of the fixed plate. The transition fastener is used to clamp the two transition connecting plates onto the fixed plate. The axial side wall of the transition connecting plate is recessed with an assembly groove facing the opening of the fixed plate. The locating pin shaft passes through the locating pin hole and its end is supported in the assembly groove. A transition seal is provided between the transition connecting plate and the wall of the fixed plate. The transition seal and the groove wall of the assembly groove work together to form a sealed space covering the locating pin shaft.

[0008] Furthermore, the fixed plate is provided with a first clamping hole that extends through the axial direction and is located around the positioning pin hole. The transition connecting plate is provided with a second clamping hole. The transition fastener passes through the second clamping hole and the first clamping hole and is arranged to clamp the two oppositely arranged transition connecting plates onto the fixed plate.

[0009] Furthermore, the transition seal includes a sealing ring that is extruded and arranged between the fixed disc and the transition connecting plate.

[0010] Furthermore, the fixed disk is a disk body with an inwardly recessed first clearance groove. Multiple first clearance grooves are arranged at intervals along the circumference of the fixed disk. A mounting lug is formed between two adjacent first clearance grooves. The first end of the transition mounting unit is assembled on the mounting lug. The first clearance grooves of two axially adjacent fixed disks are arranged in a circumferentially offset manner along the mounting shaft, thereby causing the transition connecting plates of two axially adjacent transition mounting units to be arranged in a circumferentially offset manner.

[0011] Furthermore, the fixed disk is a ring structure made in one piece, and there are multiple first clearance grooves, which are evenly spaced along the circumference of the fixed disk.

[0012] Furthermore, the transition connecting plate is a disc with an inwardly recessed second clearance groove. Multiple second clearance grooves are evenly spaced along the circumference of the disc. A connecting lug is formed between two adjacent second clearance grooves. The connecting lug of the transition connecting plate is assembled onto the mounting lug by transition fasteners. The second clearance groove is aligned with the first clearance groove. A hammer head and hammer arm are hinged to the connecting lug. The second clearance grooves of two adjacent transition connecting plates are misaligned in the circumference of the mounting shaft.

[0013] Furthermore, the transition connecting plate is an arc-shaped structure, and multiple arc-shaped structures are assembled circumferentially to form a ring structure.

[0014] The present invention also provides a hammer crushing device, including the hammer crusher rotor assembly described above.

[0015] Compared with related technologies, the hammer crusher rotor assembly provided by the present invention has the following beneficial effects:

[0016] This invention provides a hammer crusher rotor assembly, including a main shaft, a fixed disc, and a hammering assembly. The hammering assembly includes a transition mounting unit and hammer heads and arms. The first end of the transition mounting unit is fixedly mounted on the fixed disc, and the second end of the transition mounting unit is hinged to the hammer heads and arms. The fixed disc is positioned and mounted on the main shaft circumferentially and axially. When the main shaft rotates around its central axis, the fixed disc rotates synchronously with the main shaft, and the hammer heads and arms rotate to impact the material. The first end of the transition mounting unit is fixedly mounted on the fixed disc, and the hammer heads and arms rotate around the second end of the transition mounting unit, which reduces the impact force on the fixed disc. This avoids the technical problem of existing hammer crushers where the aperture at the hinge position between the fixed disc and the hammer heads and arms easily becomes larger and damaged. At the same time, the transition mounting unit is detachably connected to the fixed disc and the hammer heads and arms. When the aperture at the hinge position between the hammer heads and arms and the transition mounting unit becomes larger, only the transition mounting unit needs to be replaced, without replacing the fixed disc. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a hammer crusher rotor assembly provided in one embodiment of the present invention;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a schematic diagram of the connection structure between the fixed disc and the hammer assembly in the hammer crusher rotor assembly provided by the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the fixed disk provided in one embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of a transition connecting plate forming a ring structure according to an embodiment of the present invention;

[0022] Figure 6 for Figure 5 A cross-sectional view of the transition connecting plate forming a circular ring structure;

[0023] Figure 7 This is a schematic diagram of the structure of a transition connecting plate provided in one embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of the transition connection plate provided in another embodiment of the present invention.

[0025] The following are the labeling elements in the diagram: 100, Hammer crusher rotor assembly; 10, Main shaft; 20, Fixed disc; 201, Locating pin hole; 202, First clamping hole; 203, First clearance groove; 204, Mounting lug; 30, Hammer assembly; 31, Transition mounting unit; 311, Transition connecting plate; 3111, Assembly groove; 3112, Second clamping hole; 3113, Seal mounting groove; 3114, Second clearance groove; 3115, Connecting lug; 3116, Hinge hole; 312, Transition fastener; 313, Locating pin; 314, Transition seal; 32, Hammer head and hammer arm; 33, Hinge shaft. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0030] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0031] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 as well as Figure 8The present invention provides a hammer crusher rotor assembly 100, including a main shaft 10 and a fixed disk 20 mounted on the main shaft 10. A plurality of fixed disks 20 are arranged at intervals along the axial direction of the main shaft 10. The hammer assembly 30 also includes a hammering assembly 30, which includes a transition mounting unit 31 and a hammer head and hammer arm 32. The first end of the transition mounting unit 31 is fixedly mounted on the fixed disk 20, and the second end of the transition mounting unit 31 is hingedly mounted with the hammer head and hammer arm 32. The transition mounting unit 31 is detachably connected to the fixed disk 20 and the hammer head and hammer arm 32.

[0032] This invention provides a hammer crusher rotor assembly 100, including a main shaft 10, a fixed disk 20, and a hammering assembly 30. The hammering assembly 30 includes a transition mounting unit 31 and hammer heads and hammer arms 32. The first end of the transition mounting unit 31 is fixedly mounted on the fixed disk 20, and the second end of the transition mounting unit 31 is hingedly mounted with the hammer heads and hammer arms 32. The fixed disk 20 is positioned and mounted on the main shaft 10 circumferentially and axially. When the main shaft 10 rotates around its central axis, the fixed disk 20 rotates synchronously with the main shaft 10, and the hammer heads and hammer arms 32 rotate to impact the material. The first end of the transition mounting unit 31 is fixedly mounted on the fixed disk 20. Mounted on the fixed plate 20, the hammer head and hammer arm 32 rotate around the second end of the transition mounting unit 31, reducing the impact force on the fixed plate 20. This avoids the technical problem of the existing hammer crusher where the aperture at the hinge position between the fixed plate 20 and the hammer head and hammer arm 32 is easily enlarged and damaged. At the same time, the transition mounting unit 31 is detachably connected to the fixed plate 20 and the hammer head and hammer arm 32. When the aperture at the hinge position between the hammer head and hammer arm 32 and the transition mounting unit 31 becomes larger, only the transition mounting unit 31 needs to be replaced, without replacing the fixed plate 20.

[0033] Furthermore, multiple fixed discs are evenly spaced along the axial direction of the main shaft.

[0034] Understandably, in this invention, the transition mounting units 31 are arranged in a one-to-one correspondence with the fixed disks 20. Each fixed disk 20 is provided with a transition mounting unit 31, and each transition mounting unit 31 is provided with a hammer head and hammer arm 32. In a specific embodiment, each transition mounting unit 31 is provided with multiple hammer heads and hammer arms 32. In order to ensure alignment, the multiple hammer heads and hammer arms 32 are evenly spaced circumferentially through the transition mounting units 31 and the fixed disks 20.

[0035] Understandably, in this invention, the fixed disk 20 is fixedly arranged on the main shaft 10 and rotates synchronously with the main shaft 10.

[0036] Research has revealed that in existing hammer crushers, the aperture at the hinge point between the fixed disc and the hammer arm is prone to wear and enlargement, causing the entire fixed disc to fail and ultimately rendering the entire crusher rotor unusable. Furthermore, because the pin holes of the fixed disc and the hammer arm are coaxially arranged, if a hammer arm in the middle section of the rotor needs to be replaced due to damage, all other hammer arms arranged on the coaxial line on one side of the damaged hammer arm must be removed before replacement can be made, resulting in significant maintenance and replacement difficulties.

[0037] Please refer to Figure 3 , Figure 4 , Figure 5 as well as Figure 6 Furthermore, the fixed disk 20 is provided with a locating pin hole 201 extending axially. The transition mounting unit 31 includes a transition connecting plate 311, a transition fastener 312, a locating pin 313, and a transition seal 314. The two transition connecting plates 311 are arranged opposite each other on the axial sides of the fixed disk 20. The transition fastener 312 is used to clamp the two transition connecting plates 311 onto the fixed disk 20. The axial side wall of the transition connecting plate 311 is recessed with an assembly groove 3111 opening towards the fixed disk 20. The locating pin 313 passes through the locating pin hole 201 and its end is supported in the assembly groove 3111. A transition seal 314 is provided between the transition connecting plate 311 and the wall of the fixed disk 20. The transition seal 314 and the groove wall of the assembly groove 3111 work together to form a sealed space covering the locating pin 313. More preferably, the gap around the locating pin 313 in the sealed space is filled with grease.

[0038] Understandably, the assembly groove 3111 in this invention is a countersunk groove with a side opening. During installation, the positioning pin 313 is first arranged through the positioning pin hole 201. Then, two transition connecting plates 311 are respectively arranged on both axial sides of the fixed disk 20. Pre-positioning is achieved using transition fasteners 312, and the end of the positioning pin 313 extends into the assembly groove 3111. When fully tightened using the transition fasteners 312, a transition seal 314 is provided between the transition connecting plate 311 and the wall of the fixed disk 20. This ensures that the grease used to lubricate the positioning pin 313 will not leak from the connection gap between the transition connecting plate and the fixed disk 20. In this invention, the first end of the transition connecting plate 311 is fixedly connected to the fixed disk 20 via the positioning pin 313 and the transition fastener 312. The positioning pin 313 has positioning and shear force bearing functions. The grease in the positioning pin 313 is not easily leaked, and the positioning pin hole 201 is not easily enlarged or damaged when the hammer crusher rotor assembly 100 is working.

[0039] Understandably, the transition fastener 312 can be a screw fastener or a rivet fastener, as long as it is used to clamp the two transition connecting plates 311 onto the fixed plate 20 and make the transition connecting plates 311 detachable from the fixed plate 20. In this invention, the number of screw fasteners is not limited, but preferably, the number of screw fasteners is four.

[0040] Understandably, in this invention, the first end of the transition connecting plate 311 is fixed to the fixed disk 20, and the second end of the transition connecting plate 311 is hinged to the hammer head and hammer arm 32. In a specific implementation, the second end of the transition connecting plate 311 is provided with a hinge hole 3116, and the transition mounting unit 31 also includes a hinge shaft 33. The hinge shaft 33 is arranged through the hammer head and hammer arm 32 and the hinge hole 3116 so that the hammer head and hammer arm 32 are hinged to the transition connecting plate 311.

[0041] Furthermore, the fixed plate 20 is provided with a first clamping hole 202 extending axially, which is located around the locating pin hole 201. The transition connecting plate 311 is provided with a second clamping hole 3112. The transition fastener 312 passes through the second clamping hole 3112 and the first clamping hole 202 to clamp the two oppositely arranged transition connecting plates 311 onto the fixed plate 20. In this invention, the first clamping hole 202 is arranged near the outer circumference of the fixed plate 20, the second clamping hole 3112 is located at the first end of the transition connecting plate 311, and the screw fastener includes a fastening screw and a fastening nut. The screw fastener, the first clamping hole 202, and the second clamping hole 3112 are arranged in a one-to-one correspondence.

[0042] In one embodiment of the present invention, there are four first clamping holes 202, which are arranged in pairs opposite to each other on the outside of the positioning pin hole 201.

[0043] Further, the transition seal 314 includes a sealing ring pressed between the fixed disk 20 and the transition connecting plate 311. In a specific embodiment of the present invention, a seal mounting groove 3113 is recessed on the side wall of the transition connecting plate 311. The seal mounting groove 3113 is located outside the assembly groove 3111, and the sealing ring is partially accommodated within the seal mounting groove 3113. Ultimately, sealing rings are mounted on both axial sides of the fixed disk 20, thereby sealing the fixed disk 20 and the transition connecting plate 311. It can be understood that in the present invention, the groove diameter of the seal mounting groove 3113 is larger than the groove diameter of the assembly groove 3111. After the sealing ring is installed, it is convenient to tightly install the positioning pin 313 on the assembly groove 3111.

[0044] Furthermore, the fixed disk 20 is a disk body with an inwardly recessed first clearance groove 203. Multiple first clearance grooves 203 are arranged circumferentially around the fixed disk 20. A mounting lug 204 is formed between two adjacent first clearance grooves 203. The first end of the transition mounting unit 31 is assembled on the mounting lug 204. The first clearance grooves 203 of two axially adjacent fixed disks 20 are circumferentially misaligned on the mounting shaft, thereby causing the transition connecting plates 311 of two axially adjacent transition mounting units 31 to be circumferentially misaligned. In this invention, a first clearance groove 203 is arranged on the fixed plate 20, and the transition connecting plates 311 of two axially adjacent transition mounting units 31 are arranged in a circumferentially offset manner, and the two axially adjacent hammer heads and hammer arms 32 are arranged in a circumferentially offset manner. When it is necessary to replace or install the transition connecting plate 311 of the transition mounting unit 31, the first clearance groove 203 located on the side of the current transition connecting plate 311 can leave more axial space for the current transition fastener 312. When it is necessary to replace or install the hammer head and hammer arm 32, the hammer head and hammer arm 32 located on the side of the current hammer head and hammer arm 32 is deflected circumferentially to the hinge shaft 33 to leave more axial space. This avoids the technical problem of the existing method of needing to disassemble the lateral fixed plate 20 and / or the hammer head and hammer arm 32 to leave space for bolt movement before replacement.

[0045] Understandably, in this invention, the first end of the transition connecting plate 311 is fitted onto the mounting lug 204, and the second end of the transition connecting plate 311 extends radially for fitting the hammer head and hammer arm 32.

[0046] Even better, the fixed disk 20 is a circular structure disk made as a single piece.

[0047] Understandably, the number of first clearance slots 203 can be one or more. When there are multiple first clearance slots 203, they are arranged at uniform intervals along the circumference. More preferably, the number of first clearance slots 203 is 6, and the 6 clearance slots are arranged at uniform intervals along the circumference.

[0048] Furthermore, the transition connecting plate 311 is a disc with an inwardly recessed second clearance groove 3114. Multiple second clearance grooves 3114 are arranged at intervals along the circumference of the disc. A connecting lug 3115 is formed between two adjacent second clearance grooves. The connecting lug 3115 of the transition connecting plate 311 is assembled on the mounting lug 204 by a transition fastener 312. A hammer head and hammer arm 32 are hinged on the connecting lug 3115. The second clearance groove is aligned with the first clearance groove 203. The second clearance grooves of two adjacent transition connecting plates 311 are misaligned in the circumference of the mounting shaft.

[0049] More preferably, the transition connecting plate 311 is an arc-shaped ring structure, with multiple arc-shaped ring structures assembled circumferentially to form a ring structure. Optionally, the transition connecting plate 311 is a semi-circular structure, or a one-third or one-sixth circular ring structure. After disconnection, the transition connecting plate 311 can also be removed radially. Please refer to [reference needed]. Figure 5 , Figure 6 as well as Figure 7 In one specific embodiment, the transition connecting plate 311 has a semi-annular structure, and three connecting lugs 3115 are arranged radially outward on a single transition connecting plate 311. Two transition connecting plates 311 are arranged opposite each other on the fixed disk 20 to form a circular structure; please refer to Figure 8 In another specific embodiment, the transition connecting plate 311 is a one-third circular ring structure. Two connecting lugs 3115 are arranged radially outward on a single transition connecting plate 311, and three transition connecting plates 311 are arranged circumferentially on the fixed plate 20 to form a ring structure. While facilitating the installation of the transition connecting plate 311, the ring structure can resist torque.

[0050] Understandably, the second clearance groove 3114 is arranged correspondingly to the first clearance groove 203. The first clearance groove 203 can be an arc-shaped groove with an open outer periphery, or a rectangular groove with an open outer periphery, or a groove of other shapes. The mounting lug 204 is arranged correspondingly to the connecting lug 3115. In a specific implementation of the present invention, the connecting lug 3115 is provided with an assembly groove 3111, a second clamping hole 3112, and a sealing element mounting groove 3113. The connecting lug 3115 is also provided with a hinge hole 3116. The mounting lug 204 is provided with a positioning pin hole 201 and a first clamping hole 202. Each connecting lug 3115 and the mounting lug 204 are fitted and fixedly connected under the action of the corresponding positioning pin 313, transition seal 314, and transition fastener 312. Each connecting lug 3115 is provided with a hammer head and hammer arm 32, which are hinged to the connecting lug 3115 under the action of the corresponding hinge shaft 33.

[0051] More preferably, in order to ensure the structural strength, the first clearance groove 203 can be an arc-shaped groove with an outer peripheral opening. The groove diameter of the first clearance groove 203 is arranged to gradually shrink inward along the radial direction, and the width of the mounting lug 204 is arranged to gradually expand outward along the radial direction.

[0052] Furthermore, the hammer crusher rotor assembly 100 also includes a spacer, through which two axially adjacent fixed discs 20 are separated.

[0053] The hammer crusher rotor assembly 100 provided by the present invention has the following beneficial effects:

[0054] The hammer crusher rotor assembly 100 includes a main shaft 10, a fixed disk 20, and a hammering assembly 30. The hammering assembly 30 includes a transition mounting unit 31 and hammer heads and arms 32. The first end of the transition mounting unit 31 is fixedly mounted on the fixed disk 20, and the second end is hinged to the hammer heads and arms 32. The transition mounting unit 31 is detachably connected to the fixed disk 20. When the aperture at the hinge position between the hammer heads and arms 32 and the transition mounting unit 31 increases, only the transition mounting unit 31 needs to be replaced, without replacing the fixed disk 20. The transition mounting unit 31 includes a transition connecting plate 311, a transition fastener 312, a positioning pin 313, and a transition seal 314. The transition seal 314 and the groove wall of the mounting groove 3111 of the transition connecting plate 311 work together to form a sealed space covering the positioning pin. The gaps in the sealed space are filled with grease, allowing the positioning pin 313 to be properly sealed. Good lubrication prevents wear from dust, reduces wear on the fixed plate 20, improves the service life of the fixed plate 20, and ultimately improves the service life of the entire crusher rotor. The fixed plate 20 is provided with a first clearance groove 203. Multiple first clearance grooves 203 are arranged at intervals along the circumference of the fixed plate 20. The first clearance grooves 203 of two axially adjacent fixed plates 20 are circumferentially misaligned, thereby causing the transition connecting plates 311 of two axially adjacent transition mounting units 31 to be circumferentially misaligned, and causing the transition fasteners 312 of the transition connecting plates 311 of two axially adjacent transition mounting units 31 to be circumferentially misaligned, and causing the two axially adjacent hinge shafts 33 to be circumferentially misaligned. There is enough space to directly replace a single transition mounting unit 31 and hammer head / arm 32, enabling convenient replacement of transition mounting units 31 and hammer head / arm 32 during maintenance or installation.

[0055] The present invention also provides a hammer crushing device, including the hammer crusher rotor assembly 100 described above.

[0056] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A hammer crusher rotor assembly, characterized in that, It includes a spindle and fixed disks mounted on the spindle, with a plurality of fixed disks arranged at intervals along the axial direction of the spindle. It also includes a hammering assembly, which comprises a transition mounting unit and a hammer head and hammer arm. A first end of the transition mounting unit is fixedly mounted on the fixed plate, and a second end of the transition mounting unit is hinged to the hammer head and hammer arm. The transition mounting unit is detachably connected to the fixed plate and the hammer head and hammer arm. The fixed disk is a disk body with an inwardly recessed first clearance groove. Multiple first clearance grooves are arranged at intervals along the circumference of the fixed disk. A mounting lug is formed between two adjacent first clearance grooves. The first end of the transition mounting unit is fitted onto the mounting lug. The first clearance grooves of two axially adjacent fixed disks are arranged in a staggered manner along the circumference of the spindle. The transition mounting unit includes transition connecting plates and transition fasteners. Two transition connecting plates are arranged opposite each other on both axial sides of the fixed disk. The transition fasteners are used to clamp the two transition connecting plates onto the fixed disk. Each transition connecting plate is a disk body with an inwardly recessed second clearance groove. A plurality of second clearance grooves are evenly spaced along the circumference of the disk body, and a connecting lug is formed between two adjacent second clearance grooves. The connecting lug of the transition connecting plate is assembled onto the mounting lug by the transition fastener. The second clearance groove is aligned with the first clearance groove. The hammer head and hammer arm are hinged to the connecting lug. The second clearance slots of two adjacent transition mounting units along the axial direction are arranged in a circumferentially offset manner on the main shaft.

2. The hammer crusher rotor assembly according to claim 1, characterized in that, The fixed plate is provided with locating pin holes that extend through the axial direction. The transition mounting unit also includes a positioning pin and a transition seal. The transition fastener is used to clamp the two transition connecting plates onto the fixed disk. The axial sidewall of the transition connecting plate is recessed with an assembly groove facing the opening of the fixed disk. The positioning pin passes through the positioning pin hole and its end is supported in the assembly groove. The transition seal is provided between the transition connecting plate and the wall of the fixed plate. The transition seal and the groove wall of the assembly groove work together to form a sealed space covering the positioning pin.

3. The hammer crusher rotor assembly according to claim 2, characterized in that, The fixed plate has a first clamping hole that extends axially through it, and the first clamping hole is located around the positioning pin hole. The transition connecting plate is provided with a second clamping hole, and the transition fastener passes through the second clamping hole and the first clamping hole to clamp the two oppositely arranged transition connecting plates onto the fixed plate.

4. The hammer crusher rotor assembly according to claim 2, characterized in that, The transition seal includes a sealing ring that is pressed between the fixed disc and the transition connecting plate.

5. A hammer crusher rotor assembly according to any one of claims 1 to 4, characterized in that, The fixed disk is a ring structure made in one piece, and multiple first clearance grooves are evenly spaced along the circumference of the fixed disk.

6. The hammer crusher rotor assembly according to claim 1, characterized in that, The transition connecting plate has an arc-shaped structure, and multiple arc-shaped structures are assembled circumferentially on the fixed plate to form a ring structure.

7. A hammer crusher, characterized in that, Includes the hammer crusher rotor assembly as described in any one of claims 1 to 6.

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