Crushing motor capable of preventing bearing from loosening

Abstract

A crushing motor capable of preventing a bearing from loosening relates to the technical field of motors, a worm shaft is arranged in a bearing support in a penetrating manner, an inner ring of a deep groove ball bearing is fixedly sleeved on the worm shaft, the front side of the bearing support is provided with a mounting plate in an abutting manner, and the rear side wall of the mounting plate is provided with a groove which is matched and abutted with an outer ring of the deep groove ball bearing at the front side; the bolt is arranged on the mounting plate in a penetrating mode, one end of the bolt is rotatably inserted into a threaded hole formed in the bearing support through threads, the bearing support is provided with an anti-loosening mechanism matched with the bolt, the worm shaft is fixedly sleeved with the iron shell, a magnetic ring is fixedly arranged in the iron shell, the bearing support is fixedly sleeved with an iron core, and the iron core is arranged in the magnetic ring. The bearing support is provided with a groove, the rubber ring is fixedly arranged in the groove, and the rubber ring abuts against the bearing support, so that noise generated when the bearing is affected by vibration during operation of the motor can be reduced, and the phenomenon that the bearing is loosened due to the fact that the bearing of the motor is affected by axial force can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, concretely relates to a kind of smashing motor of avoiding bearing slack. BACKGROUND

[0002] As a kind of common material processing equipment, the power system of pulverizer usually realizes power transmission by the cooperation of gear set and worm structure, in conventional working condition, this kind of transmission structure can effectively meet the demand of smashing, however, when pulverizer encounters foreign matter (such as metal block or hard impurities) that cannot be broken, gear set will amplify resistance and convert into strong axial impact load to be transmitted to driving motor, motor bearing is mainly fixed on bearing support by glue bonding cooperation, but when abnormal axial force exceeds the bonding strength of glue, the fixation of bearing and support fails, leading to bearing loosening, displacement, motor dynamic balance is destroyed after bearing displacement, strong vibration is caused, further aggravate the mechanical wear of bearing and support, the bearing that loosens also produces persistent abnormal sound in operation, while the service life of bearing and motor is greatly shortened due to uneven stress, therefore, a kind of smashing motor of avoiding bearing slack is urgently needed. SUMMARY

[0003] The utility model discloses to the defects and deficiencies of prior art, provide a kind of smashing motor of avoiding bearing slack with reasonable design, to solve the above problems.

[0004] To achieve the above object, the utility model adopts the following technical scheme: it includes bearing support, base plate and deep groove ball bearing, base plate is fixedly sleeved on bearing support, deep groove ball bearing is fixedly arranged on the inside of bearing support two sides before and after;

[0005] It also includes:

[0006] Worm shaft, the worm shaft is inserted in bearing support, the inner ring of deep groove ball bearing is fixedly sleeved on worm shaft, the front side of bearing support is provided with mounting plate, and worm shaft is rotatably inserted on mounting plate, recess is formed on the back side wall of mounting plate and cooperates with the outer ring of deep groove ball bearing before side and is provided with the recess of bearing support;

[0007] Bolt, the bolt is three, and is inserted on mounting plate, and the end of bolt is rotatably inserted in the threaded hole of bearing support, and bearing support is provided with anti-loosening mechanism matched with bolt;

[0008] Iron shell, the iron shell is fixedly sleeved on worm shaft, magnetic ring is fixedly arranged in iron shell, iron core is fixedly sleeved on bearing support, and iron core is in magnetic ring, rubber ring is fixedly arranged in recess, and rubber ring is provided with bearing support.

[0009] Further, the anti-loosening mechanism includes:

[0010] The gear ring is rotationally arranged in the side wall of the bearing support, three gears are engaged on the gear ring, a driving rod is fixed on the gears, the driving rod is rotationally arranged in the side wall of the bearing support, and four guide blocks are fixed on the driving rod;

[0011] The polygonal blocks are three, are movably arranged in the polygonal grooves arranged on the inner walls of the rear sides of the three threaded holes, movably sleeved on one end of the driving rod, and the guide blocks are movably arranged in the guide grooves arranged on the inner walls of the polygonal blocks, and the rear end of the bolt is provided with a limiting groove matched with the polygonal block.

[0012] The control rod is movably arranged in the control groove arranged on the side wall of the bearing support, one end of the control rod is fixedly connected with the gear ring, and the control groove is fixedly provided with a first spring connected with the control rod.

[0013] Further, the control groove is fixedly provided with an arc-shaped rod, and the first spring and the control rod are movably sleeved on the arc-shaped rod.

[0014] Further, one end of the control rod is fixedly provided with a protective control plate, the protective control plate is movably arranged on the outer side of the control groove of the bearing support, and the side wall of the protective control plate is provided with anti-skid lines.

[0015] Further, the rear end of the bolt is abuttingly provided with an abutting plate, a second spring connected with the rear side wall of the abutting plate is fixedly arranged in the threaded hole of the abutting plate, a plurality of movable blocks are evenly distributed on the outer annular wall of the abutting plate, and the movable blocks are movably arranged in the movable grooves arranged on the inner walls of the threaded holes.

[0016] Further, a positioning ring is fixedly arranged on the rear side wall of the bearing support, the positioning ring is movably sleeved on the bolt, and the positioning ring is movably abuttingly arranged in the positioning groove arranged at the opening of the threaded hole.

[0017] Compared with the prior art, the pulverizing motor capable of avoiding bearing loosening has the advantages that not only the noise caused by the vibration of the bearing during the operation of the motor is reduced, but also the phenomenon that the bearing is loosened due to the axial force acting on the motor bearing is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of the utility model.

[0019] Figure 2 is a sectional view of the bearing support, the mounting plate, the iron shell and the magnetic ring in the utility model.

[0020] Figure 3 is Figure 2 is an enlarged view of A part in

[0021] Figure 4 is Figure 2 the enlarged view of B part in the figure.

[0022] Figure 5 is the parts explosion view of the bearing support, the anti-loosening mechanism, the abutting plate and the second spring in the utility model.

[0023] Figure 6 is Figure 5 the enlarged view of C part in the figure.

[0024] Figure 7 is the structural schematic view of the polygonal block in the utility model.

[0025] Figure 8 is the connection schematic view of the mounting plate and the positioning ring in the utility model.

[0026] Figure 9 is the structural schematic view of the bolt in the utility model.

[0027] Explanation of reference signs:

[0028] bearing support 1, base plate 2, deep groove ball bearing 3, worm shaft 4, mounting plate 5, recess 6, bolt 7, threaded hole 8, anti-loosening mechanism 9, gear ring 9-1, gear 9-2, driving rod 9-3, guide block 9-4, polygonal block 9-5, control rod 9-6, first spring 9-7, iron shell 10, magnetic ring 11, iron core 12, rubber ring 13, polygonal groove 14, guide groove 15, limiting groove 16, control groove 17, arc-shaped rod 18, protective control plate 19, abutting plate 20, second spring 21, movable block 22, movable groove 23, positioning ring 24, positioning groove 25. DETAILED DESCRIPTION

[0029] The technical solutions in the utility model will be described clearly and completely in combination with the drawings, and the preferred embodiments in the description are only taken as examples, and all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] As Figures 1-9 shown, the specific embodiment adopts the following technical solutions: it contains bearing support 1, base plate 2 and deep groove ball bearing 3, the base plate 2 is fixedly sleeved on the bearing support 1, and the deep groove ball bearing 3 is fixedly arranged on the inside of the bearing support 1 at both sides;

[0031] it also contains:

[0032] The worm shaft 4 is arranged in the bearing support 1, the inner ring of the deep groove ball bearing 3 is fixedly sleeved on the worm shaft 4, the front side of the bearing support 1 is provided with the mounting plate 5, the worm shaft 4 is rotatably arranged on the mounting plate 5, the rear side wall of the mounting plate 5 is provided with the recess 6 matched with the outer ring of the front side deep groove ball bearing 3, the recess 6 can provide an axial constraint surface for the outer ring of the front side deep groove ball bearing 3, and when the retaining force formed by the glue between the front side deep groove ball bearing 3 and the bearing support 1 is lost, the front side deep groove ball bearing 3 will not be easily displaced even when the pulverizer is in a locked-rotor state due to foreign matters;

[0033] The bolts 7 are three, and are arranged on the mounting plate 5, one end of the bolt 7 is rotatably arranged in the threaded hole 8 arranged on the bearing support 1 through threads, the bearing support 1 is provided with the anti-loosening mechanism 9 matched with the bolt 7, the rear side wall of the bearing support 1 is fixedly provided with the positioning ring 24, the positioning ring 24 is movably sleeved on the bolt 7, the positioning ring 24 is movably arranged in the positioning groove 25 arranged at the opening of the threaded hole 8, and the mounting plate 5 and the bearing support 1 can be positioned during the mounting of the mounting plate 5 and the bearing support 1 through the cooperation of the positioning ring 24 and the positioning groove 25, so that the mounting of the mounting plate 5 and the bearing support 1 is prevented from being dislocated or deviated;

[0034] The iron shell 10 is fixedly sleeved on the worm shaft 4, the iron shell 10 is fixedly provided with the magnetic ring 11, the bearing support 1 is fixedly sleeved with the iron core 12, the iron core 12 is arranged in the magnetic ring 11, the recess 6 is fixedly provided with the rubber ring 13, and the rubber ring 13 is arranged in abutment with the bearing support 1, after the bearing support 1 and the mounting plate 5 are mounted, the rubber ring 13 is compressed by being extruded by the convex surface of the motor bearing support 1, can absorb the vibration transmitted between the bearing support 1 and the mounting plate 5, and can reduce the noise generated by the deep groove ball bearing 3 due to vibration during the operation of the motor;

[0035] The anti-loosening mechanism 9 comprises:

[0036] The gear ring 9-1 is rotatably arranged in the side wall of the bearing support 1, the gear ring 9-1 is engaged with the three gear wheels 9-2, the gear wheel 9-2 is fixedly provided with the driving rod 9-3, the driving rod 9-3 is rotatably arranged in the side wall of the bearing support 1, and the driving rod 9-3 is fixedly provided with the four guide blocks 9-4;

[0037] The polygonal blocks 9-5 are three, are movably arranged in the polygonal grooves 14 arranged on the rear side inner walls of the three threaded holes 8, and are movably sleeved on one end of the driving rod 9-3, the guide blocks 9-4 are movably arranged in the guide grooves 15 arranged on the inner walls of the polygonal blocks 9-5, and the rear end of the bolt 7 is provided with the limiting groove 16 matched with the polygonal block 9-5;

[0038] The control lever 9-6 is movably arranged in a control groove 17 formed in the side wall of the bearing support 1, and one end of the control lever 9-6 is fixedly connected with the gear ring 9-1. A first spring 9-7 is fixedly arranged in the control groove 17 and connected with the control lever 9-6. The anti-loosening mechanism 9 can limit the rotation of the bolt 7 after locking, so as to avoid loosening of the bolt 7 in the threaded hole 8 due to vibration during operation of the motor, and thus the outer ring of the front deep groove ball bearing 3 can always be in abutment with the groove 6 and will not be loosened due to vibration. An arc-shaped rod 18 is fixedly arranged in the control groove 17, and the first spring 9-7 and the control lever 9-6 are movably sleeved on the arc-shaped rod 18. The arc-shaped rod 18 can not only provide auxiliary guidance for movement of the control lever 9-6, but also avoid abnormal bending of the first spring 9-7 during compression, thereby affecting the service life. One end of the control lever 9-6 is fixedly provided with a protective control plate 19, and the protective control plate 19 is movably arranged on the bearing support 1 at a position outside the control groove 17. The side wall of the protective control plate 19 is provided with anti-skid lines. The protective control plate 19 can provide protection outside the control groove 17, so as to avoid dust and other external factors from entering the side wall of the bearing support 1 through the control groove 17, thereby avoiding jamming of transmission between the gear 9-2 and the gear ring 9-1. The rear end of the bolt 7 is abutted with an abutment plate 20. A second spring 21 is fixedly arranged in the threaded hole 8 and connected with the rear side wall of the abutment plate 20. A plurality of movable blocks 22 are distributed on the outer ring wall of the abutment plate 20. The movable blocks 22 are movably arranged in the movable groove 23 formed in the inner wall of the threaded hole 8. After the bolt 7 is locked, the second spring 21 will apply a counterforce to the bolt 7 through the abutment plate 20, so as to offset the loosening trend of the bolt 7 due to vibration, impact or temperature change, thereby further improving the anti-loosening effect of the bolt 7.

[0039] In use of the utility model, the control lever 9-6 is used to drive the gear ring 9-1 to rotate and compress the first spring 9-7. The gear ring 9-1 drives the three gears 9-2 to rotate synchronously. The gear 9-2 drives the driving rod 9-3 to rotate. The driving rod 9-3 moves the polygonal block 9-5 to the rear side by the movement of the guide block 9-4 in the guide groove 15. The bearing support 1 and the mounting plate 5 are fixed by the bolt 7. At this time, the groove 6 can provide an axial constraint surface for the front deep groove ball bearing 3, so as to avoid loosening of the deep groove ball bearing 3. Then the control lever 9-6 is moved, the first spring 9-7 is reset and elongated to push the control lever 9-6. The control lever 9-6 drives the gear ring 9-1 to rotate reversely. The polygonal block 9-5 moves to the front side by the cooperation of the gear 9-2, the driving rod 9-3, the guide block 9-4 and the guide groove 15. The polygonal block 9-5 is inserted into the limiting groove 16 to limit the rotation of the bolt 7, so as to prevent loosening of the bolt 7 and avoid invalidation of the constraint surface of the groove 6 and the outer ring of the front deep groove ball bearing 3.

[0040] Compared with the prior art, the utility model has the advantages of:

[0041] Through the cooperation of the groove 6 and the rubber ring 13, not only the axial displacement of the deep groove ball bearing 3 can be limited, but also the transmission of vibration can be reduced, thereby reducing the generation of noise of the deep groove ball bearing 3;

[0042] Through the cooperation of the anti-loosening mechanism 9, the rotation of the locked bolt 7 can be limited, so that the bolt 7 is prevented from loosening in the threaded hole 8 due to vibration during the operation of the motor, and the front deep groove ball bearing 3 outer ring can always cooperate with the groove 6, thereby avoiding the failure of the axial constraint surface of the groove 6 and the front deep groove ball bearing 3 outer ring;

[0043] After the bolt 7 is locked, through the cooperation of the abutting plate 20, the second spring 21 and the movable block 22, a counterforce can be applied to the bolt 7 to offset the loosening tendency of the bolt 7 due to vibration, impact or temperature change, thereby further improving the anti-loosening effect of the bolt 7;

[0044] The protection control plate 19 can provide protection outside the control groove 17, so that dust and other external factors are prevented from entering the side wall of the bearing support 1 through the control groove 17, thereby preventing the transmission between the gear 9-2 and the gear ring 9-1 from being stuck.

[0045] For those skilled in the art, the technical solutions described in the foregoing embodiments can be modified, and equivalent replacement of part of the technical features can be made, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A crushing motor for preventing bearing loosening, comprising a bearing bracket (1), a base plate (2) and a deep groove ball bearing (3), wherein the base plate (2) is fixedly sleeved on the bearing bracket (1), and deep groove ball bearings (3) are fixedly installed on both the front and rear sides inside the bearing bracket (1). Its features are, It also includes: The worm shaft (4) is inserted into the bearing bracket (1), and the inner ring of the deep groove ball bearing (3) is fixedly sleeved on the worm shaft (4). The bearing bracket (1) has a mounting plate (5) abutting against the front side, and the worm shaft (4) is rotatably inserted into the mounting plate (5). The rear side wall of the mounting plate (5) has a groove (6) that abuts against the outer ring of the front deep groove ball bearing (3). Bolt (7), there are three bolts (7), all of which are installed on the mounting plate (5). One end of the bolt (7) is inserted into the threaded hole (8) opened on the bearing bracket (1) by the thread. The bearing bracket (1) is provided with an anti-loosening mechanism (9) that cooperates with the bolt (7). The iron shell (10) is fixedly sleeved on the worm shaft (4). A magnetic ring (11) is fixedly installed inside the iron shell (10). An iron core (12) is fixedly sleeved on the bearing bracket (1) and the iron core (12) is located inside the magnetic ring (11). A rubber ring (13) is fixedly installed in the groove (6) and the rubber ring (13) is in contact with the bearing bracket (1).

2. A pulverizing motor for preventing bearing loosening according to claim 1, characterized in that: The anti-loosening mechanism (9) includes: A gear ring (9-1) is rotatably disposed inside the side wall of the bearing bracket (1). Three gears (9-2) mesh on the gear ring (9-1). A drive rod (9-3) is fixedly disposed on the gears (9-2). The drive rod (9-3) is rotatably disposed inside the side wall of the bearing bracket (1). Four guide blocks (9-4) are fixedly disposed on the drive rod (9-3). Three polygonal blocks (9-5) are movably disposed in polygonal grooves (14) opened on the inner wall of the three threaded holes (8), and the polygonal blocks (9-5) are movably sleeved on one end of the drive rod (9-3). The guide block (9-4) is movably disposed in the guide groove (15) opened on the inner wall of the polygonal block (9-5). The bolt (7) has a limiting groove (16) that cooperates with the polygonal block (9-5) at the rear end. The control rod (9-6) is movably disposed in the control groove (17) opened on the side wall of the bearing bracket (1), and one end of the control rod (9-6) is fixedly connected to the gear ring (9-1). A first spring (9-7) connected to the control rod (9-6) is fixedly disposed in the control groove (17).

3. A pulverizing motor for preventing bearing loosening according to claim 2, characterized in that: An arc-shaped rod (18) is fixedly installed inside the control slot (17), and the first spring (9-7) and the control rod (9-6) are both movably sleeved on the arc-shaped rod (18).

4. A pulverizing motor for preventing bearing loosening according to claim 2, characterized in that: One end of the control rod (9-6) is fixedly provided with a protective control plate (19), and the protective control plate (19) is movably mounted on the bearing bracket (1) at the outer position of the control groove (17). The side wall of the protective control plate (19) is provided with anti-slip texture.

5. A pulverizing motor for preventing bearing loosening according to claim 1, characterized in that: The rear end of the bolt (7) is provided with a contact plate (20). A second spring (21) connected to the rear side wall of the contact plate (20) is fixedly installed in the threaded hole (8) of the contact plate (20). Several movable blocks (22) are distributed with equal rounded corners on the outer ring wall of the contact plate (20). The movable blocks (22) are movably installed in the movable groove (23) opened on the inner wall of the threaded hole (8).

6. A pulverizing motor for preventing bearing loosening according to claim 1, characterized in that: A positioning ring (24) is fixedly installed on the rear side wall of the bearing bracket (1), and the positioning ring (24) is movably sleeved on the bolt (7). The positioning ring (24) is movably abutted in the positioning groove (25) opened at the opening of the threaded hole (8).

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