A rotor assembly for an impact hammer crusher

Abstract

The present invention discloses a rotor assembly for an impact hammer crusher, comprising a main shaft, a hammer body, an end face shaft disc and a sleeve, wherein a plurality of sleeves and end face shaft discs are sleeved on the main body of the middle part of the main shaft, a sleeve is sleeved between two adjacent end face shaft discs, all sleeves and end face shaft discs are sleeved on the main shaft at intervals and connected by a flat key; all end face shaft discs are formed with connecting through holes, and a connecting shaft is sleeved in the corresponding connecting through holes on all end face shaft discs, and a rod portion of the hammer body and two wear-resistant spacers are sleeved on the connecting shaft between two adjacent end face shaft discs, the two wear-resistant spacers are located on both sides of the rod portion of the hammer body, and the other end face of the wear-resistant spacer is close to the corresponding end face shaft disc. The present invention can ensure that the hammer bodies on two adjacent connecting shafts will not touch each other, thereby ensuring the service life, and at the same time, it uses a connecting shaft sleeve to connect the hammer bodies in the corresponding connecting through holes on all end face shaft discs, and has high strength, thereby ensuring the strength of the end face shaft disc.

Description

Technical Field

[0001] The invention relates to the technical field of mining machinery and equipment, and more specifically to a rotor assembly for an impact hammer crusher. Background Art

[0002] The shell of the existing impact hammer crusher is provided with a rotor assembly, and the rotor assembly is provided with a striking hammer. The striking hammer is used to crush the stone entering the shell by rotating the rotor assembly. However, the rod of each existing striking hammer is connected to the hinge slot formed on the edge of the shaft disc by a pin shaft. The edge of the shaft disc has a slot, which greatly reduces the thickness of the wall panels on both sides of the slot, reduces its strength, and easily causes the edge of the shaft disc to break, thereby separating the rod of the hammer from the shaft disc and reducing its service life.

[0003] At the same time, two adjacent striking hammers on the same shaft disc are prone to touch each other during operation, which affects the service life. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a rotor assembly for an impact hammer crusher, which can ensure that the hammer bodies on two adjacent connecting shafts will not touch each other, thereby ensuring the service life. At the same time, it adopts a connecting shaft sleeve to connect the hammer bodies in the corresponding connecting through holes on all end shaft discs, and has high strength, thereby ensuring the strength of the end shaft disc and not being easily damaged.

[0005] The solution of the present invention to solve the technical problem is:

[0006] A rotor assembly for an impact hammer crusher, comprising a main shaft, a hammer body, an end face shaft disc and a sleeve, wherein a plurality of sleeves and end face shaft discs are inserted and sleeved on the middle main body of the main shaft, a sleeve is sleeved between two adjacent end face shaft discs, and all sleeves and end face shaft discs are inserted and sleeved on the main shaft at intervals and connected by a flat key;

[0007] All end face shaft discs are formed with connecting through holes, and the connecting shaft is inserted into the corresponding connecting through holes on all end face shaft discs. The connecting shaft between two adjacent end face shaft discs is inserted with the rod of the hammer body and two wear-resistant spacers. The two wear-resistant spacers are located on both sides of the rod of the hammer body, and the other end face of the wear-resistant spacer is close to the corresponding end face shaft disc.

[0008] Furthermore, four connecting through holes are formed on the end face shaft disc, and the four connecting through holes are evenly distributed on the end face shaft disc with the central axis of the end face shaft disc as the center.

[0009] Furthermore, a protective protrusion is formed on the outer side wall of the sleeve, and the protective protrusion is located between the rods of the two corresponding hammer bodies.

[0010] Furthermore, the protective protrusion is in the shape of a triangular protrusion, and a wear-resistant protective plate layer is fixed on the outer side wall of the protective protrusion.

[0011] Furthermore, the wear-resistant protective plate layer is welded and fixed on the outer side wall of the protective protrusion.

[0012] Furthermore, an axially extending flat keyway is formed on one side wall of the middle main body of the main shaft, the flat key is inserted into the flat keyway and fixedly connected to the main shaft by bolts, and the upper part of the flat key extends out of the flat keyway and is inserted into an inner slot formed on the inner side wall of the shaft sleeve and the end face shaft disk.

[0013] Furthermore, one end of the connecting shaft extends out of the end face shaft disc and is formed with an annular groove, and a clamping plate is fixedly connected to the outer wall of the end face shaft disc by bolts, and a part of the clamping plate is inserted into the corresponding annular groove.

[0014] Furthermore, both ends of the middle main body of the main shaft are formed with threaded shaft parts, and the threaded shaft parts are sleeved with stop washers and threaded with round nuts, and the stop washers are clamped between the end face shaft disc and the round nut at the end.

[0015] Furthermore, a wear-resistant reinforcement sleeve is fixed on the outer side wall of the hammer head of the hammer body.

[0016] Furthermore, the wear-resistant reinforcement sleeve is welded and fixed on the outer side wall of the hammer head of the hammer body.

[0017] The outstanding effect of the present invention is that, compared with the prior art, it can ensure that the hammer bodies on two adjacent connecting shafts will not touch each other, thereby ensuring the service life. At the same time, it adopts a connecting shaft sleeve to connect the hammer bodies in the corresponding connecting through holes on all end face shaft discs, and has high strength, thereby ensuring the strength of the end face shaft disc and not being easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial structural schematic diagram of the present invention;

[0019] Figure 2 is a partial cross-sectional view of the present invention in a side view state;

[0020] Figure 3 The present invention Figure 1 Partial enlarged image. DETAILED DESCRIPTION

[0021] For example, see Figures 1 to 3As shown, a rotor assembly for an impact hammer crusher comprises a main shaft 1, a hammer body 2, an end face shaft disc 3 and a sleeve 4. A plurality of sleeves 4 and end face shaft discs 3 are inserted and sleeved on the middle main body of the main shaft 1, a sleeve 4 is sleeved between two adjacent end face shaft discs 3, and all sleeves 4 and end face shaft discs 3 are inserted and sleeved on the main shaft 1 at intervals and connected by a flat key 5;

[0022] All end face shaft discs 3 are formed with connecting through holes 31, and the connecting shaft 6 is inserted into the corresponding connecting through holes 31 on all end face shaft discs 3. The connecting shaft 6 between two adjacent end face shaft discs 3 is inserted with the rod portion of the hammer body 2 and two wear-resistant spacers 7. The two wear-resistant spacers 7 are located on both sides of the rod portion of the hammer body 2, and the other end surface of the wear-resistant spacer 7 is close to the corresponding end face shaft disc 3.

[0023] Furthermore, four connecting through holes 31 are formed on the end face shaft disc 3 , and the four connecting through holes 31 are evenly distributed on the end face shaft disc 3 with the central axis of the end face shaft disc 3 as the center.

[0024] Furthermore, a protective protrusion 41 is formed on the outer wall of the shaft sleeve 4 , and the protective protrusion 41 is located between the rods of the two corresponding hammer bodies 2 .

[0025] Furthermore, the protective protrusion 41 is in the shape of a triangular protrusion, and a wear-resistant protective plate layer 42 is fixed on the outer side wall of the protective protrusion 41 .

[0026] Furthermore, the wear-resistant protective plate layer 42 is welded and fixed to the outer side wall of the protective protrusion 41 .

[0027] Furthermore, an axially extending flat keyway is formed on one side wall of the middle main body of the main shaft 1, and the flat key 5 is inserted into the flat keyway and fixedly connected to the main shaft 1 by bolts. The upper part of the flat key 5 extends out of the flat keyway and is inserted into an inner slot formed on the inner side wall of the shaft sleeve 4 and the end face shaft disc 3.

[0028] Furthermore, one end of the connecting shaft 6 extends out of the end face shaft disc 3 and is formed with an annular groove 61 , and a clamping plate 8 is fixedly connected to the outer wall of the end face shaft disc 3 by bolts, and a part of the clamping plate 8 is inserted into the corresponding annular groove 61 .

[0029] Furthermore, the two ends of the middle main body of the main shaft 1 are formed with a threaded shaft portion 11, on which a stop washer 111 and a round nut 112 are inserted and threaded, and the stop washer 111 is clamped between the end face shaft disc 3 and the round nut 112 at the end.

[0030] Furthermore, a wear-resistant reinforcement sleeve 21 is fixed on the outer side wall of the hammer head of the hammer body 2 .

[0031] Furthermore, the wear-resistant reinforcement sleeve 21 is welded and fixed on the outer side wall of the hammer head of the hammer body 2 .

[0032] In this embodiment, when it is used, through the protective protrusion 41 and the wear-resistant protective plate layer 42 fixed on the outer wall thereof, the two hammer bodies 2 on both sides of the protective protrusion 41 can first lean on the wear-resistant protective plate layer 42 when hammering, and the wear-resistant protective plate layer 42 has a lower hardness than the rod of the hammer body 2, but has a higher toughness, so that the rod of the hammer body 2 will not be damaged when it hits the wear-resistant protective plate layer 42, thereby ensuring its service life;

[0033] At the same time, in this embodiment, the connecting shaft 6 is used to connect the hammer body 2, and the connecting shaft 6 is inserted into the corresponding connecting through hole 31 on the end face shaft disc 3. The thickness of the end face shaft disc 3 is thick and its strength is high, which ensures the connection effect. When disassembly is required, it is only necessary to remove the cover plate of the inspection hole on the side plate of the shell of the impact hammer crusher, and then remove the clamping plate 8, and then pull the connecting shaft 6 outward from the inspection hole, and then remove the hammer body 2 for replacement and maintenance, which is very convenient.

[0034] At the same time, a wear-resistant reinforcing sleeve 21 is fixed on the outer side wall of the hammer head of the hammer body 2, so that the service life of the hammer head of the hammer body 2 is greatly improved and the maintenance frequency is reduced.

Claims

1. A rotor assembly for an impact hammer crusher, comprising a main shaft (1), a hammer body (2), an end shaft disc (3) and a shaft sleeve (4), characterized in that: A plurality of shaft sleeves (4) and end face shaft discs (3) are inserted and sleeved on the middle main body of the main shaft (1), a shaft sleeve (4) is sleeved between two adjacent end face shaft discs (3), and all the shaft sleeves (4) and end face shaft discs (3) are inserted and sleeved on the main shaft (1) at intervals and connected via a flat key (5); All the end face shaft discs (3) are formed with connecting through holes (31), and the connecting shafts (6) are inserted into the corresponding connecting through holes (31) on all the end face shaft discs (3). The connecting shafts (6) between two adjacent end face shaft discs (3) are inserted with the rod of the hammer body (2) and two wear-resistant spacers (7), and the two wear-resistant spacers (7) are located on both sides of the rod of the hammer body (2), and the other end surface of the wear-resistant spacer (7) is close to the corresponding end face shaft disc (3); Four connecting through holes (31) are formed on the end face shaft disc (3), and the four connecting through holes (31) are evenly distributed on the end face shaft disc (3) with the central axis of the end face shaft disc (3) as the center; A protective protrusion (41) is formed on the outer wall of the shaft sleeve (4), and the protective protrusion (41) is located between the rods of the two corresponding hammer bodies (2), so that the hammer bodies (2) and their rods on the two adjacent connecting shafts (6) will not collide with each other; The protective protrusion (41) is in the shape of a triangular protrusion, and a wear-resistant protective plate layer (42) is fixed on the outer side wall of the protective protrusion (41); so that the two hammer bodies (2) on both sides of the protective protrusion (41) will first lean against the wear-resistant protective plate layer (42) when hammering, and the hardness of the wear-resistant protective plate layer (42) is smaller than that of the rod of the hammer body (2), so that the rod of the hammer body (2) will not be damaged when it hits the wear-resistant protective plate layer (42).

2. The rotor assembly for an impact hammer crusher according to claim 1, characterized in that: The wear-resistant protective plate layer (42) is welded and fixed on the outer side wall of the protective raised portion (41).

3. The rotor assembly for an impact hammer crusher according to claim 1, characterized in that: A flat keyway extending axially is formed on one side wall of the middle main body of the main shaft (1), the flat key (5) is inserted into the flat keyway and fixedly connected to the main shaft (1) by bolts, and the upper part of the flat key (5) extends out of the flat keyway and is inserted into an inner slot formed on the inner side wall of the shaft sleeve (4) and the end face shaft disc (3).

4. The rotor assembly for an impact hammer crusher according to claim 1, characterized in that: One end of the connecting shaft (6) extends out of the end face shaft disc (3) and is formed with an annular groove (61); a clamping plate (8) is fixedly connected to the outer side wall of the end face shaft disc (3) by bolts; a portion of the clamping plate (8) is inserted into the corresponding annular groove (61).

5. The rotor assembly for an impact hammer crusher according to claim 1, characterized in that: The main shaft (1) has screw-connected shaft portions (11) formed at both ends of the middle main body portion, a stop washer (111) is inserted and sleeved on the screw-connected shaft portion (11) and a round nut (112) is screwed on, and the stop washer (111) is clamped between the end face shaft disc (3) and the round nut (112) at the end portion.

6. The rotor assembly for an impact hammer crusher according to claim 1, characterized in that: A wear-resistant reinforcement sleeve (21) is fixed on the outer side wall of the hammer head of the hammer body (2).

7. The rotor assembly for an impact hammer crusher according to claim 6, characterized in that: The wear-resistant reinforcement sleeve (21) is welded and fixed on the outer side wall of the hammer head of the hammer body (2).

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