Crusher rotor shaft with hardened surface

Abstract

The utility model discloses a crusher rotor shaft with a hardened surface, which comprises a rotor main shaft, a plurality of hammer discs are fixedly arranged on the outer surface of the rotor main shaft, and a plurality of pin shafts are fixedly arranged on the outer side of the rear end face of the first hammer disc from left to right. The rear end face of the pin shaft is fixed to the front end face of the last hammer disc counted from left to right. A plurality of hammer head mounting sleeves are slidably connected to the outer surface of the pin shaft, hammer head fixing grooves are formed in one sides of the outer surfaces of the hammer head mounting sleeves, hammer heads are arranged in the hammer head fixing grooves, and manual rotating heads located on the outer surfaces of the hammer head mounting sleeves are arranged on one sides of the hammer heads. Compared with the prior art, the hammer head has the advantages that when a certain hammer head is too seriously deformed due to impact between the hammer head and stones, the hammer head can be independently detached from the whole equipment only by rotating the manual rotating head, and when a certain hammer head needs to be replaced according to the technical scheme, the whole equipment does not need to be detached, so that the convenience of the hammer head is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a broken machine technical field, concretely is a surface hardening's broken machine rotor axle. BACKGROUND

[0002] Broken machine, also called stone crusher, is a kind of crushing machinery that can be broken into small particles by extrusion and bending action in the process of metal and non-metallic ore processing;

[0003] And broken machine rotor axle is the core component in hammer crusher, in the process of producing broken machine rotor axle, in order to improve its service life, various surface hardening treatments such as carburizing, surface quenching and nitriding are generally carried out in the production process, so as to improve the wear resistance, fatigue resistance and strength of rotor axle, and the broken machine rotor axle after surface hardening treatment can be called a surface hardening's broken machine rotor axle.

[0004] But in the process of using this surface hardening's broken machine rotor axle, the hammer head on the rotor axle will continuously collide with the stone, with the increase of use time, occasionally a few hammer heads will be deformed too seriously due to the impact, so that the whole equipment cannot be normally used, at this time, it needs to be replaced, but when the hammer head needs to be replaced, the broken machine rotor axle needs to be disassembled as a whole, and the replacement operation is more complicated;Therefore, it does not meet the existing demand, and for this, we propose a surface hardening's broken machine rotor axle. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a surface hardening's broken machine rotor axle to solve the problems in the prior art that in the process of using this surface hardening's broken machine rotor axle, the hammer head on the rotor axle will continuously collide with the stone, with the increase of use time, occasionally a few hammer heads will be deformed too seriously due to the impact, so that the whole equipment cannot be normally used, at this time, it needs to be replaced, but when the hammer head needs to be replaced, the broken machine rotor axle needs to be disassembled as a whole, and the replacement operation is more complicated.

[0006] To achieve the above object, the utility model provides the following technical scheme: a surface hardening's broken machine rotor axle, including rotor spindle, the outer surface of rotor spindle is fixedly installed with a plurality of hammer discs, a plurality of pin shafts are fixedly arranged on the outer side of the rear end surface of the first hammer disc from left to right, and the rear end surface of the pin shaft is fixed with the front end surface of the last hammer disc from left to right.

[0007] The outer surface of the pin shaft is slidably connected with a plurality of hammer head mounting sleeves, the outer surface of the hammer head mounting sleeve is provided with a hammer head fixing groove on one side, and the hammer head fixing groove is provided with a hammer head in the inside.

[0008] Preferably, one side of the hammer head is provided with a manual rotating head on the outer surface of the hammer head mounting sleeve, the middle position of the lower end surface of the manual rotating head is fixedly connected with a transmission rotating shaft, the lower side of the outer surface of the transmission rotating shaft is fixedly sleeved with a first gear, the outer surfaces of the two sides of the first gear are engaged with a second gear, the shaft center of the second gear is connected with a gear transmission rotating shaft, the middle position of the lower end surface of the gear transmission rotating shaft is fixedly connected with a square rotating shaft, the outer side of the bottom end of the square rotating shaft is provided with an external thread connecting rod connected with the hammer head mounting sleeve through a thread structure, one side of the outer surface of the external thread connecting rod is provided with a square insertion slot, and the square rotating shaft is inserted into the inside of the square insertion slot.

[0009] The outer side of the bottom end of the external thread connecting rod is provided with an internal thread connecting groove on the outer surface of the hammer head, and the internal thread of the internal thread connecting groove matches the external thread of the external thread connecting rod.

[0010] The inner wall section shape of the square insertion slot is a square, the outer surface of the square rotating shaft is attached to the inner wall of the square insertion slot, and the square rotating shaft and the square insertion slot are slidably connected.

[0011] Preferably, the bottom end of the transmission rotating shaft is located in the inside of the hammer head mounting sleeve shell, and the transmission rotating shaft located in the inside of the hammer head mounting sleeve shell is connected with the hammer head mounting sleeve through a roller bearing.

[0012] Preferably, the middle position of the surface of the hammer head facing the pin shaft is an arc surface, and the hammer head is sleeved on the outer surface of the pin shaft through the arc surface.

[0013] Preferably, the outer surface of the manual rotating head is provided with a ring of locking through holes, the inside of the locking through holes is provided with a metal locking rod, the outer side of the bottom end of the metal locking rod is provided with a locking groove in the inside of the hammer head mounting sleeve, the inside of the locking groove is provided with a magnetic attraction block, and the surface of the magnetic attraction block facing the metal locking rod is attached to the metal locking rod.

[0014] Preferably, the upper end surface of the metal locking rod is fixedly provided with an anti-dropping cover, the surface of the anti-dropping cover facing the manual rotating head is attached to the manual rotating head, and the middle position of the upper end surface of the anti-dropping cover is fixedly provided with a pulling handle.

[0015] Preferably, the surface of the hammer head mounting sleeve facing the pin shaft is also an arc surface, and the arc surface on the outer surface of the hammer head mounting sleeve is slidably connected with the pin shaft.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1. The utility model discloses a hammer head mounting sleeve is installed on the outer surface of the pin shaft through the sliding, and is fixed between two outer thread connecting rods and the hammer head, when the deformation of a certain hammer head is too serious because of the impact between the hammer head and the stone, only need to rotate the manual rotating head to remove the connection between the hammer head mounting sleeve and the hammer head, and the hammer head is separated from the whole equipment, then a new hammer head is installed on the vacant hammer head mounting sleeve, when the hammer head needs to be replaced, the whole equipment does not need to be disassembled, thereby improve its convenience.

[0018] 2. The utility model discloses a plurality of metal locking rods can lock the outer thread connecting rod for connecting the hammer head mounting sleeve and the hammer head, the outer thread connecting rod is locked, when the whole equipment is driven to rotate, the connection between the hammer head mounting sleeve and the hammer head is prevented from loosening because of the rotating force. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall structure schematic view of the utility model;

[0020] Figure 2 It is the internal structure side view of the utility model;

[0021] Figure 3 It is the utility model Figure 2 The structure enlarged view of A place in;

[0022] Figure 4 It is the structure enlarged view of B place in the utility model. Figure 3

[0023] In the drawing: 1, rotor main shaft; 2, hammer disc; 3, pin shaft; 4, hammer head mounting sleeve; 5, hammer head fixed groove; 6, hammer head; 7, internal thread connecting groove; 8, transmission rotating shaft; 9, first gear; 10, second gear; 11, gear transmission rotating shaft; 12, square rotating shaft; 13, outer thread connecting rod; 14, square insertion slot; 15, locking through hole; 16, metal locking rod; 17, locking groove; 18, magnetic attraction piece; 19, manual rotating head. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments.

[0025] The hammer head 5 (model number is 5), outer thread connecting rod 13 (model number is M12) and magnetic attraction piece 18 (model number is JK3-5) mentioned in the utility model can be obtained from market purchase or private customization.

[0026] As Figure 1 And​Figure 4 As shown, one embodiment of the present invention is provided: a surface-hardened crusher rotor shaft, including a rotor main shaft 1, a plurality of hammer discs 2 are fixedly installed on the outer surface of the rotor main shaft 1, a plurality of pins 3 are fixedly provided on the outer side of the rear end face of the first hammer disc 2 from left to right, and the rear end face of the pins 3 is fixed to the front end face of the last hammer disc 2 from left to right.

[0027] Multiple hammer mounting sleeves 4 are slidably connected to the outer surface of the pin 3. A hammer fixing groove 5 is provided on one side of the outer surface of the hammer mounting sleeve 4. A hammer 6 is provided inside the hammer fixing groove 5. A manual rotating head 19 is provided on one side of the hammer 6, located on the outer surface of the hammer mounting sleeve 4. A transmission shaft 8 is fixedly connected to the middle position of the lower end face of the manual rotating head 19. A first gear 9 is fixedly sleeved on the lower side of the outer surface of the transmission shaft 8. A second gear 10 is meshed on both sides of the outer surface of the first gear 9. A gear transmission shaft 11 is connected to the shaft of the second gear 10. A square shaft 12 is fixedly connected to the middle position of the lower end face of the gear transmission shaft 11. An external threaded connecting rod 13 is provided on the outer side of the bottom end of the square shaft 12 and is connected to the hammer mounting sleeve 4 by a threaded structure. A square slot 14 is provided on one side of the outer surface of the external threaded connecting rod 13, and the square shaft 12 is inserted into the inside of the square slot 14.

[0028] The outer side of the bottom end of the external threaded connecting rod 13 is provided with an internal threaded connecting groove 7 located on the outer surface of the hammer head 6, and the internal thread of the internal threaded connecting groove 7 matches the external thread of the external threaded connecting rod 13.

[0029] As a preferred technical solution in this embodiment, such as Figure 3 and Figure 4 As shown, the middle position of the surface of the hammer head 6 facing the pin 3 is an arc-shaped surface, and the hammer head 6 is fitted onto the outer surface of the pin 3 through the arc-shaped surface; the surface of the hammer head mounting sleeve 4 facing the pin 3 is also an arc-shaped surface, and the arc-shaped surface on the outer surface of the hammer head mounting sleeve 4 is slidably connected to the pin 3; when a hammer head 6 is deformed too severely due to the impact with the stone, the manual rotating head 19 on the corresponding hammer head mounting sleeve 4 is rotated. As the manual rotating head 19 rotates, the transmission shaft 8 fixed to it will rotate together. The rotating transmission shaft 8 can drive the first gear 9 fixed to it and the second gear 10 meshing with it to rotate. When the second gear 10 rotates, the gear transmission shaft 11 fixed to the axis of the second gear 10 and the square shaft 12 fixed to the gear transmission shaft 11 will rotate together.

[0030] The inner wall of the square slot 14 has a square cross-section. The outer surface of the square rotating shaft 12 is in contact with the inner wall of the square slot 14, and the square rotating shaft 12 and the square slot 14 are slidably connected. Since the outer surface of the square rotating shaft 12 is in contact with the inner wall of the square slot 14 located on the outer surface of the external threaded connecting rod 13, the external threaded connecting rod 13 will rotate together when the square rotating shaft 12 rotates. Driven by the threaded structure, the rotating external threaded connecting rod 13 can move up and down. When the external threaded connecting rod 13 moves upward, and the external threaded connecting rod 13 completely leaves the interior of the internal threaded connecting groove 7 located on the outer surface of the hammer head 6, the connection between the hammer head mounting sleeve 4 and the hammer head 6 will be disconnected. Then, the hammer head 6 can be removed directly. After the hammer head 6 that is too deformed is removed, align the arc face of the new hammer head 6 with the pin 3 located inside the empty hammer head mounting sleeve 4 and insert it until the hammer head 6 and the hammer head mounting sleeve 4 are completely fitted together. Then, rotate the manual rotating head 19 in the opposite direction to drive the external threaded connecting rod 13 to rotate and move downward. The external threaded connecting rod 13, which rotates and moves downward, will eventually enter the internal threaded connecting groove 7 located on the outer surface of the hammer head 6, thereby fixing the hammer head mounting sleeve 4 and the hammer head 6 together. With this embodiment, when it is necessary to replace a hammer head 6, it is no longer necessary to disassemble the entire device, thereby improving its convenience.

[0031] As a preferred technical solution in this embodiment, such as Figure 4 As shown, the outer surface of the manual rotating head 19 is provided with a ring of locking through holes 15. Inside the locking through holes 15 is a metal locking rod 16. The outer side of the bottom end of the metal locking rod 16 is provided with a locking groove 17 located inside the hammer head mounting sleeve 4. Inside the locking groove 17 is a magnetic block 18, and the surface of the magnetic block 18 facing the metal locking rod 16 is in contact with the metal locking rod 16. An anti-detachment cover is fixedly provided on the upper end face of the metal locking rod 16, and the surface of the anti-detachment cover facing the manual rotating head 19 is in contact with the manual rotating head 19. A pull handle is fixedly provided at the middle position of the upper end face of the anti-detachment cover. When the bottom end of the external threaded connecting rod 13 enters the interior of the internal threaded connecting groove 7, slightly... Adjust the angle of the manual rotating head 19 so that the multiple locking through holes 15 on the outer surface of the manual rotating head 19 are aligned with the multiple locking slots 17. Then, insert the metal locking rod 16 into the interior of the locking through hole 15 and ensure that it penetrates the locking through hole 15 and fits against the magnetic block 18. The multiple metal locking rods 16 penetrating the locking through holes 15 can prevent the manual rotating head 19 from rotating, thereby locking the external threaded connecting rod 13 used to connect the hammer head mounting sleeve 4 and the hammer head 6. Locking the external threaded connecting rod 13 can prevent the connection between the hammer head mounting sleeve 4 and the hammer head 6 from loosening due to its rotational force when the whole equipment is driven to rotate.

[0032] When it is necessary to release the lock of the external threaded connecting rod 13, the metal locking rod 16 can be pulled out more easily by the pull handle connected to the metal locking rod 16 through the anti-detachment cover.

[0033] The magnetic block 18, which is attached to the lower end face of the metal locking rod 16, can prevent the metal locking rod 16 from being thrown off due to the rotational force when the whole equipment is rotating.

[0034] The bottom end of the transmission shaft 8 is located inside the outer shell of the hammer mounting sleeve 4, and the transmission shaft 8 located inside the outer shell of the hammer mounting sleeve 4 is connected to the hammer mounting sleeve 4 by a roller bearing; the roller bearing structure between the hammer mounting sleeve 4 and the transmission shaft 8 can prevent the transmission shaft 8 from falling off.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A surface-hardened crusher rotor shaft, comprising a rotor main shaft (1), characterized in that: Multiple hammer discs (2) are fixedly installed on the outer surface of the rotor spindle (1). Multiple pins (3) are fixedly provided on the outer side of the rear end face of the first hammer disc (2) from left to right, and the rear end face of the pins (3) is fixed to the front end face of the last hammer disc (2) from left to right. Multiple hammer mounting sleeves (4) are slidably connected to the outer surface of the pin (3). A hammer fixing groove (5) is provided on one side of the outer surface of the hammer mounting sleeve (4), and a hammer (6) is provided inside the hammer fixing groove (5).

2. The surface-hardened crusher rotor shaft according to claim 1, characterized in that: A manual rotating head (19) is provided on one side of the hammer head (6) on the outer surface of the hammer head mounting sleeve (4). A transmission shaft (8) is fixedly connected to the middle position of the lower end face of the manual rotating head (19). A first gear (9) is fixedly sleeved on the lower side of the outer surface of the transmission shaft (8). A second gear (10) meshes with both sides of the outer surface of the first gear (9). A gear transmission shaft (11) is connected to the shaft of the second gear (10). A square shaft (12) is fixedly connected to the middle position of the lower end face of the gear transmission shaft (11). An external threaded connecting rod (13) is provided on the outer side of the bottom end of the square shaft (12) and is connected to the hammer head mounting sleeve (4) by a threaded structure. A square slot (14) is provided on one side of the outer surface of the external threaded connecting rod (13), and the square shaft (12) is inserted into the inside of the square slot (14). The outer side of the bottom end of the external threaded connecting rod (13) is provided with an internal threaded connecting groove (7) located on the outer surface of the hammer head (6), and the internal thread of the internal threaded connecting groove (7) matches the external thread of the external threaded connecting rod (13). The inner wall of the square slot (14) has a square cross-section. The outer surface of the square pivot (12) is in contact with the inner wall of the square slot (14), and the square pivot (12) and the square slot (14) are slidably connected.

3. The surface-hardened crusher rotor shaft according to claim 2, characterized in that: The bottom end of the transmission shaft (8) is located inside the outer shell of the hammer mounting sleeve (4), and the transmission shaft (8) located inside the outer shell of the hammer mounting sleeve (4) is connected to the hammer mounting sleeve (4) by a roller bearing.

4. The surface-hardened crusher rotor shaft according to claim 1, characterized in that: The middle position of the surface of the hammer head (6) facing the pin (3) is an arc-shaped surface, and the hammer head (6) is fitted onto the outer surface of the pin (3) through the arc-shaped surface.

5. A surface-hardened crusher rotor shaft according to claim 2, characterized in that: The outer surface of the manual rotating head (19) is provided with a locking through hole (15). The inside of the locking through hole (15) is provided with a metal locking rod (16). The outer side of the bottom end of the metal locking rod (16) is provided with a locking groove (17) located inside the hammer head mounting sleeve (4). The inside of the locking groove (17) is provided with a magnetic block (18), and the surface of the magnetic block (18) facing the metal locking rod (16) is in contact with the metal locking rod (16).

6. The surface-hardened crusher rotor shaft according to claim 5, characterized in that: The upper end face of the metal locking rod (16) is fixedly provided with an anti-detachment cover, the side of the anti-detachment cover facing the manual rotating head (19) is in contact with the manual rotating head (19), and a pull handle is fixedly provided at the middle position of the upper end face of the anti-detachment cover.

7. A surface-hardened crusher rotor shaft according to claim 4, characterized in that: The surface of the hammer mounting sleeve (4) facing the pin (3) is also an arc-shaped surface, and the arc-shaped surface on the outer surface of the hammer mounting sleeve (4) is slidably connected to the pin (3).

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