Shaft sleeve device capable of being quickly disassembled and assembled for hammer crusher

Abstract

The utility model relates to the technical field of crushers, in particular to a quickly detachable shaft sleeve device of a hammer crusher, which comprises a shaft sleeve main body, a first anti-deviation ring, a second anti-deviation ring and a locking assembly, the two ends of the shaft sleeve main body are a fixed end and a dismounting end respectively, the first anti-deviation ring is fixedly connected to the fixed end, and the dismounting end is sleeved with the second anti-deviation ring; the locking assembly comprises a locking nut and a retaining washer, and the locking nut is in threaded connection with the dismounting end of the shaft sleeve main body; the disassembly and assembly end is sleeved with the retaining gasket, a limiting block is fixedly connected to the inner side of the retaining gasket, a limiting groove for clamping the limiting block is formed in the peripheral side wall of the disassembly and assembly end, and the limiting groove penetrates through the end face of the disassembly and assembly end; a plurality of retaining pieces are fixedly connected to the outer side wall of the retaining washer, a plurality of retaining grooves are formed in the peripheral side wall of the locking nut, and the retaining pieces can be bent into the corresponding retaining grooves. The shaft sleeve has the effect that the shaft sleeve body is not prone to deviation while the shaft sleeve body is convenient to replace.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of crushers, in particular to a shaft sleeve device of a hammer crusher which can be quickly disassembled and assembled. BACKGROUND

[0002] The hammer crusher is widely used for primary crushing and secondary crushing of metal and non-metallic ores, building aggregates and various metal raw materials, and has more advantages and higher production efficiency than other types of crushers when producing medium-hard materials with a compressive strength of less than 100 MPa and a moisture content of less than 15%.

[0003] REFERENCE Figure 1 The core of the hammer crusher is a rotor body 6, which comprises a main shaft 61, a hammer disc 62, a hammer head 63, a shaft sleeve body 64, a hammer shaft 65 and the hammer head 63. The hammer disc 62 is fixed on the main shaft 61 at equal intervals and is provided with a shaft hole 621, the hammer shaft 65 penetrates the shaft hole 621, the both ends of the hammer shaft 65 are fixedly connected with a guard plate 611, the shaft sleeve body 64 is welded in the shaft hole 621 and on the hammer shaft 65, and the hammer head 63 is hung on the hammer shaft 65 and rotates with the rotor body 6 to crush the raw stone. The shaft sleeve body 64 protects the shaft hole 621 on the hammer disc 62, reduces the contact between the hammer shaft 65 and other components, reduces the wear and prolongs the service life.

[0004] The conventional shaft sleeve body of the hammer crusher is usually fixed by welding, which has the problems of easy wear, complex replacement and easy deformation of the shaft hole. In addition, the conventional design of the shaft sleeve body will affect the overall dynamic balance of the crusher after wear, increasing the difficulty of equipment maintenance and operation cost. Therefore, it is of great significance to develop a detachable shaft sleeve device to improve the operation efficiency and stability of the crusher. The 2630 type hammer crusher uses a cylindrical shaft sleeve body, which is sleeved on the hammer shaft and penetrates the shaft hole and is not welded, but in the use process, the shaft sleeve body will appear left and right deviation problem and cannot be restored after deviation, only can use gas cutting treatment, and the shaft sleeve body will jam the hammer head after deviation, affecting the hammer head turning and replacement operation, the original replacement of 8 hammer heads only needs 3 hours, when the shaft sleeve body deviates, the replacement of the same number of hammer heads needs 5 hours, the replacement efficiency is reduced by 66.66%; the shaft sleeve body deviation leads to the need to make a new shaft sleeve body, and the maintenance cost is high. CONTENT OF THE INVENTION

[0005] In order to facilitate the replacement of the shaft sleeve body while taking into account the effect that the shaft sleeve body is not easy to deviate, the application provides a shaft sleeve device of a hammer crusher which can be quickly disassembled and assembled.

[0006] The shaft sleeve device of the hammer crusher provided by the application adopts the following technical scheme:

[0007] The application discloses a shaft sleeve device of a hammer crusher which can be quickly disassembled and assembled.

[0008] The two ends of the shaft sleeve body are a fixed end and a disassembling end respectively, the first anti-deviation ring is fixedly connected to the fixed end, the second anti-deviation ring is sleeved on the disassembling end, and the locking assembly is arranged on the disassembling end and used for limiting the second anti-deviation ring on the shaft sleeve body.

[0009] By adopting the technical scheme, the outer side wall of the shaft sleeve body is the first contact surface, and the inner side wall of the shaft sleeve body is the second contact surface. Before the shaft sleeve device is installed, the second anti-deviation ring and the locking assembly are not installed on the shaft sleeve body, the shaft sleeve body and the first anti-deviation ring are integrated and in a T-shaped structure. When the shaft sleeve device is installed, the shaft sleeve body is inserted into the shaft hole, the second contact surface is in contact with the inner wall of the shaft hole, friction deformation of the hammer shaft caused by direct contact between the hammer shaft and the shaft hole is prevented, and damage of the rotor body is caused. Meanwhile, the shaft sleeve body is sleeved on the hammer shaft, the fourth contact surface is in contact with the outer wall of the hammer shaft, the hammer shaft is protected during high-speed operation of the rotor body, and the service life of the hammer shaft is prolonged. The shaft sleeve body protects the shaft hole of the rotor body from deformation caused by friction.

[0010] Then, the second anti-deviation ring is sleeved on the shaft sleeve body and is limited by the locking assembly. At this time, the first anti-deviation ring and the second anti-deviation ring are located on the two sides of the hammer disc in the thickness direction, so that the shaft sleeve body can be limited and is not easy to deviate, and the shaft sleeve body is prevented from falling off due to the centrifugal force. Meanwhile, the shaft sleeve device is convenient to disassemble and assemble, the service life of the shaft sleeve body is prolonged, the maintenance time is effectively shortened, and the maintenance efficiency is improved.

[0011] Optionally, the locking assembly comprises a locking nut, an outer thread is arranged on the circumferential side wall of the disassembling end, the locking nut is threadedly connected to the disassembling end of the shaft sleeve body, and the locking nut is away from the first anti-deviation ring compared with the second anti-deviation ring.

[0012] By adopting the technical scheme, after the second anti-deviation ring is sleeved on the shaft sleeve body, the locking nut is tightened on the disassembling end of the shaft sleeve body, and the second anti-deviation ring is limited.

[0013] Optionally, the locking nut is in a conical shape, the smallest end of the locking nut is closer to the first anti-deviation ring compared with the largest end, and the inner side of the second anti-deviation ring is provided with a slope matched with the locking nut.

[0014] By adopting the technical scheme, the locking nut is in a conical shape and is matched with the slope on the inner side of the second anti-deviation ring, and the stability of the second anti-deviation ring being limited is improved.

[0015] Optionally, the locking assembly further comprises a retreat-stop washer, the retreat-stop washer is closer to the first anti-deviation ring than the locking nut, the retreat-stop washer is sleeved on the disassembling end, the inner side of the retreat-stop washer is fixedly connected with a limiting block, a limiting groove for clamping the limiting block is arranged on the circumferential wall of the disassembling end, and the limiting groove penetrates through the end face of the disassembling end.

[0016] A plurality of retreat-stop pieces are fixedly connected to the outer side wall of the retreat-stop washer, and a plurality of retreat-stop grooves are arranged on the circumferential wall of the locking nut, and the retreat-stop pieces can be bent into the corresponding retreat-stop grooves.

[0017] By adopting the above technical scheme, the retreat-stop washer can prevent the locking nut from rotating, so that the locking nut is loosened or falls off.

[0018] Optionally, the length of the external thread is 10 mm.

[0019] In summary, the present application has at least one of the following beneficial technical effects:

[0020] 1. The shaft sleeve device of the present application protects the shaft hole of the rotor body from being deformed due to friction; the structure is reasonably designed and convenient to disassemble; by changing the shape of the shaft sleeve body, the shaft sleeve body is in T shape, and the second anti-deviation ring and the locking assembly are added; when the shaft sleeve body or the second anti-deviation ring is worn, the shaft sleeve body on the rotor body can be disassembled and used according to the actual wear condition, without the need to disassemble and replace all, so as to prolong the service life of the equipment accessories, save costs, realize quick disassembly, shorten the maintenance time, solve the horizontal deviation problem of the shaft sleeve body of the rotor body, significantly prolong the service life of the shaft sleeve body, and improve the maintenance efficiency.

[0021] 2. The shaft sleeve device of the present application has strong wear resistance; through comparison after use, the service life of the improved T-shaped shaft sleeve body is prolonged by about 20 days compared with the original shaft sleeve body; the second anti-deviation ring and the shaft sleeve body can be used in different positions, and have high reusability; the use amount of the shaft sleeve body is reduced by 40% per year.

[0022] 3. The quick locking mechanism simplifies the replacement process, does not need to use an electrode to fix, uses a special nut to fix, and improves the maintenance efficiency.

[0023] 4. The second anti-deviation ring ensures that the shaft sleeve body is not easy to deviate due to vibration during operation.

[0024] 5. The novel shaft sleeve body can be applied to different types of crushers. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic view of a rotor body.

[0026] Figure 2is a structural schematic view of a shaft sleeve body for display in the embodiment of the present application.

[0027] Figure 3 is a structural schematic view of an outer thread for display after the second anti-deviation ring is hidden.

[0028] Figure 4 is a structural schematic view of the second anti-deviation ring in the embodiment of the present application.

[0029] Figure 5 is a structural schematic view of a disassembly end for display in the embodiment of the present application.

[0030] Figure 6 is a structural schematic view of the locking nut after being translated upward in the embodiment of the present application.

[0031] Figure 7 is a top view of the locking assembly in an installed state for display in the embodiment of the present application.

[0032] Figure 8 is a structural schematic view of the locking assembly in a disassembled state for display in the embodiment of the present application.

[0033] BRIEF DESCRIPTION OF THE DRAWINGS: 1, shaft sleeve body; 11, first anti-deviation ring; 12, fixed end; 13, disassembly end; 131, outer thread; 132, limiting groove; 2, second anti-deviation ring; 3, first contact surface; 4, second contact surface; 5, locking assembly; 51, locking nut; 52, retreat stop washer; 521, limiting block; 6, rotor body; 61, main shaft; 611, guard plate; 62, hammer disc; 621, through shaft hole; 63, hammer head; 64, shaft sleeve body; 65, hammer shaft; 66, hammer head; 7, retreat stop piece; 8, retreat stop groove. DETAILED DESCRIPTION

[0034] The following will be described in detail in combination with the accompanying drawings. Figures 1-8 The present application will be further described in detail.

[0035] The embodiment of the present application discloses a shaft sleeve device of a hammer crusher which can be quickly disassembled and assembled. Referring to Figures 1-4 , the shaft sleeve device of the hammer crusher which can be quickly disassembled and assembled comprises a shaft sleeve body 1, a first anti-deviation ring 11, a second anti-deviation ring 2 and a locking assembly 5. The two ends of the shaft sleeve body 1 are respectively a fixed end 12 and a disassembly end 13, the first anti-deviation ring 11 is integrally formed on the fixed end 12, the second anti-deviation ring 2 is sleeved on the disassembly end 13, and the locking assembly 5 is arranged on the disassembly end 13 for limiting the second anti-deviation ring 2 on the shaft sleeve body 1.

[0036] The outer side wall of the sleeve body 1 is the first contact surface 3, and the inner side wall of the sleeve body 1 is the second contact surface 4. Before the sleeve device of the application is installed, the second anti-deviation ring 2 and the locking assembly 5 are not installed on the sleeve body 1, the sleeve body 1 and the first anti-deviation ring 11 are integrated and in T-shaped structure; before the sleeve device of the application is installed, the sleeve body 1 is inserted into the shaft hole 621, so that the second contact surface 4 is in contact with the inner wall of the shaft hole 621, preventing the hammer shaft 65 from directly contacting the shaft hole 621 and causing friction deformation, which damages the rotor body 6; at the same time, the sleeve body 1 is sleeved on the hammer shaft 65, so that the fourth contact surface is in contact with the outer wall of the hammer shaft 65, which protects the hammer shaft 65 during high-speed operation of the rotor body 6 and prolongs the service life of the hammer shaft 65. The sleeve body 1 protects the rotor body 6 from deformation due to friction when passing through the shaft hole 621.

[0037] Then the second anti-deviation ring 2 is sleeved on the sleeve body 1 and limited by the locking assembly 5, at this time the first anti-deviation ring 11 and the second anti-deviation ring 2 are located on both sides of the thickness direction of the hammer disc 62, so as to limit the sleeve body 1 and prevent it from deviating, preventing the sleeve body 64 from falling off due to the action of centrifugal force. At the same time, the sleeve device is convenient to disassemble and assemble, prolongs the service life of the sleeve body 64, effectively shortens the maintenance time, and improves the maintenance efficiency.

[0038] Referring to Figure 2 and Figures 4-8 , the locking assembly 5 includes a locking nut 51 and a stop washer 52, and the peripheral wall of the disassembly end 13 is provided with an external thread 131, and the length of the external thread 131 is 10 mm. The locking nut 51 is threadedly connected to the disassembly end 13 of the sleeve body 1, and the locking nut 51 is farther away from the first anti-deviation ring 11 than the second anti-deviation ring 2. After the second anti-deviation ring 2 is sleeved on the sleeve body 1, the locking nut 51 is tightened on the disassembly end 13 of the sleeve body 1 to limit the second anti-deviation ring 2. The locking nut 51 is conical, and the smallest end of the locking nut 51 is closer to the first anti-deviation ring 11 than the largest end; the inner side of the second anti-deviation ring 2 is provided with a slope for cooperating with the locking nut 51. The conical locking nut 51 cooperates with the slope on the inner side of the second anti-deviation ring 2 to improve the stability of the limited second anti-deviation ring 2.

[0039] Referring to Figures 5-8The stop washer 52 is closer to the first anti-deviation ring 11 than the locking nut 51, is sleeved on the dismounting end 13, and is fixedly connected with a limiting block 521 on the inner side. A limiting groove 132 for clamping the limiting block 521 is arranged on the circumferential wall of the dismounting end 13 and penetrates the end face of the dismounting end 13. A plurality of stop pieces 7 are fixedly connected to the outer side wall of the stop washer 52, and a plurality of stop grooves 8 are arranged on the circumferential wall of the locking nut 51, and the stop pieces 7 can be bent into the corresponding stop grooves 8. The stop washer 52 can prevent the locking nut 51 from rotating, so that the locking nut 51 is loose or falls off.

[0040] The implementation principle of the shaft sleeve device of the hammer crusher capable of being quickly dismounted according to the embodiment of the application is as follows: before the shaft sleeve device is installed, the second anti-deviation ring 2 and the locking assembly 5 are not installed on the shaft sleeve main body 1, and the shaft sleeve main body 1 and the first anti-deviation ring 11 are integrated and in a T-shaped structure. Before the shaft sleeve device is installed, the shaft sleeve main body 1 is inserted into the shaft hole 621, so that the second contact surface 4 is in contact with the inner wall of the shaft hole 621, thereby preventing the hammer shaft 65 from being in direct contact with the shaft hole 621 and causing friction deformation, and preventing the rotor body 6 from being damaged. At the same time, the shaft sleeve main body 1 is sleeved on the hammer shaft 65, so that the fourth contact surface is in contact with the outer wall of the hammer shaft 65, thereby playing a role in protecting the hammer shaft 65 during high-speed operation of the rotor body 6 and prolonging the service life of the hammer shaft 65. The shaft sleeve main body 1 protects the rotor body 6 from being deformed due to friction when passing through the shaft hole 621.

[0041] Then, the second anti-deviation ring 2 is sleeved on the shaft sleeve main body 1, and the stop washer 52 and the locking nut 51 are sequentially sleeved on the shaft sleeve main body 1, and the limiting block 521 is inserted into the limiting groove 132. The locking nut 51 and the stop washer 52 are fixed on the shaft sleeve main body 1 by using a special hook-shaped crescent wrench. At this time, the first anti-deviation ring 11 and the second anti-deviation ring 2 are located on the two sides of the thickness direction of the hammer disc 62, so that the shaft sleeve main body 1 can be limited and is not easy to deviate, thereby preventing the shaft sleeve main body 64 from falling off due to the action of centrifugal force. At the same time, the shaft sleeve device is convenient to dismount and assemble, the service life of the shaft sleeve main body 64 is prolonged, the maintenance time is effectively shortened, and the maintenance efficiency is improved.

[0042] The above are preferred embodiments of the application, but do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A hammer mill quick detachable shaft sleeve arrangement, characterized by: The utility model provides a kind of shaft sleeve, including shaft sleeve body (1), first anti-off ring (11), second anti-off ring (2) and locking assembly (5); The two ends of the shaft sleeve body (1) are fixed end (12) and dismounting end (13) respectively, the first anti-off ring (11) is fixedly connected to the fixed end (12), the second anti-off ring (2) is sleeved on the dismounting end (13), and the locking assembly (5) is arranged on the dismounting end (13) for limiting the second anti-off ring (2) on the shaft sleeve body (1).

2. A hammer mill quick detachable shaft sleeve assembly as claimed in claim 1 wherein: The locking assembly (5) includes a locking nut (51), the dismounting end (13) is provided with an external thread (131) on the peripheral wall, the locking nut (51) is threadedly connected to the dismounting end (13) of the shaft sleeve body (1), and the locking nut (51) is away from the first anti-off ring (11) compared with the second anti-off ring (2).

3. A hammer mill quick detachable shaft sleeve assembly as claimed in claim 2 wherein: The locking nut (51) is conical, the smallest end of the locking nut (51) is closer to the first anti-off ring (11) compared with the largest end, and the inner side of the second anti-off ring (2) is provided with a slope for cooperation with the locking nut (51).

4. A hammer mill quick release shaft sleeve assembly according to claim 2 or 3, characterised in that: The locking assembly (5) further includes a retreat-stop washer (52), the retreat-stop washer (52) is closer to the first anti-off ring (11) compared with the locking nut (51), the retreat-stop washer (52) is sleeved on the dismounting end (13), the inner side of the retreat-stop washer (52) is fixedly connected with a limiting block (521), the peripheral wall of the dismounting end (13) is provided with a limiting groove (132) for clamping the limiting block (521), and the limiting groove (132) penetrates the end face of the dismounting end (13). The outer side wall of the retreat-stop washer (52) is fixedly connected with a plurality of retreat-stop pieces (7), the peripheral wall of the locking nut (51) is provided with a plurality of retreat-stop grooves (8), and the retreat-stop pieces (7) can be bent into the corresponding retreat-stop grooves (8).

5. The quick detachable shaft sleeve arrangement of a hammer crusher as claimed in claim 2, wherein: The length of the external thread (131) is 10 mm.

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