Motor main shaft assembling structure

Abstract

The utility model discloses a motor main shaft assembling structure, which belongs to the technical field of motor shafts and comprises a shaft seat for supporting, a bearing arranged in the shaft seat and used for supporting a rotating body, and a main shaft arranged on an inner ring of the bearing, according to the utility model, during assembly, the bearings can be firstly sleeved on the main shaft, then the turnup loop bar is sleeved on the main shaft and is fixed by utilizing the fixing screw rod, then the bearings are sleeved on the main shaft, so that the turnup loop bar is clamped between the bearings on the two sides, and then the whole main shaft is placed in the shaft seat for assembly; lubricating oil can be poured into the oil storage box, at the moment, the main shaft can be rotated to enable the lubricating oil in the oil storage box to continuously flow into the bearing, and the lubricating oil can be uniformly smeared into the bearing under the rotation of the main shaft, so that the bearing can be lubricated under the condition that the bearing is not disassembled; and the bearing is prevented from being damaged in the bearing dismounting process.

Description

Technical Field

[0001] The utility model relates to the technical field of motor shafts, in particular to an assembly structure of a motor main shaft. Background Art

[0002] The motor spindle is an important part in the machinery. Its main function is to support the rotating parts and rotate with them to transmit motion, torque or bending moment. It is generally in the shape of a metal round rod, and each section can have different diameters. The parts that perform rotating motion in the machine are installed on the shaft.

[0003] In the prior art, the bearings on the motor spindle will cause increased internal friction after long-term operation, so they need to be lubricated regularly. However, if the bearings need to be lubricated after the spindle is assembled, the bearings usually need to be removed before the operation can be performed. If the operation is improper, new damage may be caused to the bearings, thereby affecting the normal use of the bearings. Utility Model Content

[0004] In view of the above-mentioned technical deficiencies, the purpose of the present utility model is to provide a motor spindle assembly structure to solve part or all of the problems in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A motor spindle assembly structure, comprising:

[0007] Axle seat, used for support;

[0008] The bearing is arranged in the shaft seat and is used to support the rotating body;

[0009] The main shaft is arranged on the inner ring of the bearing;

[0010] A lubrication structure is arranged on the bearing and is used to lubricate the bearing;

[0011] Wherein, the lubricating structure includes an oil storage structure for circulating the lubricating oil and a limiting structure for limiting the flow rate of the lubricating oil;

[0012] The limiting structure is provided with a linkage structure that enables the limiting structure to move along with the main shaft and a storage structure that avoids interference with the rotating main shaft.

[0013] Preferably, the oil storage structure comprises:

[0014] Lubrication holes are opened on the outer ring of the bearing;

[0015] An oil pipe is arranged on the shaft seat, and the oil pipe is connected with the lubrication hole;

[0016] An oil storage box is arranged on the oil pipe, and the oil storage box is connected with the oil pipe;

[0017] A positioning groove is provided on the inner wall of the shaft seat;

[0018] A positioning block, slidably installed in the positioning groove;

[0019] An oil filling port is provided on the oil storage box and is used to add lubricating oil into the oil storage box;

[0020] Wherein, the positioning block is arranged on the outer ring of the bearing to prevent the outer ring of the bearing from shifting.

[0021] Preferably, the restriction structure comprises:

[0022] The oil leakage hole is provided on the inner wall of the oil storage box;

[0023] The connecting shaft is rotatably mounted in the oil storage box;

[0024] A guide plate is arranged on the connecting shaft, and the guide plate contacts the inner wall of the oil leakage hole;

[0025] A transmission assembly is arranged on the connecting shaft and is used to drive the connecting shaft to rotate;

[0026] The oil leakage hole is connected to the oil pipe, and the guide plates are arranged in multiple groups, so that the oil leakage hole can be blocked in a static state.

[0027] Preferably, the transmission assembly includes a gear arranged at one end of the connecting shaft and a U-shaped gear rod slidably installed on one side of the oil storage box, and the U-shaped gear rod is meshed with the gear to drive the gear to rotate.

[0028] Preferably, the linkage structure includes:

[0029] The flanging sleeve rod is movably sleeved on the main shaft;

[0030] An extrusion cam is arranged on the flanging sleeve rod;

[0031] A pressure wheel is arranged above the extrusion cam, and the pressure wheel contacts the extrusion cam;

[0032] The roller frame is rotatably mounted on the pressure wheel to provide support for the pressure wheel;

[0033] A guide rod is slidably mounted on the inner wall of the shaft seat, and the guide rod is arranged on one side of the roller frame to guide the movement of the roller frame;

[0034] The screw rod is rotatably mounted on the roller frame;

[0035] Threaded sleeve rod, the thread sleeve is connected to the screw rod;

[0036] A fixing screw, threadedly mounted on the inner wall of the flange sleeve rod;

[0037] A limiting assembly is arranged on the threaded sleeve rod and is used to limit the movement of the threaded sleeve rod;

[0038] Wherein, the threaded sleeve rod is arranged on one side of the U-shaped gear rod, and the fixed screw rod is in contact with the outer wall of the main shaft to fix the position of the flanging sleeve rod.

[0039] Preferably, the limiting component comprises:

[0040] A guide rod is arranged on the shaft seat;

[0041] A spring is slidably sleeved on the guide rod;

[0042] The guide rod is slidably mounted on the threaded sleeve rod to guide the movement of the threaded sleeve rod, and the two ends of the spring are respectively mounted on the shaft seat and the threaded sleeve rod to reset the movement of the threaded sleeve rod.

[0043] Preferably, the storage structure comprises:

[0044] A sliding groove is provided on the inner wall of the shaft seat;

[0045] A limit plate, slidably installed in the sliding groove;

[0046] A receiving groove is provided on the inner wall of the shaft seat;

[0047] The limit plate is arranged on one side of the threaded sleeve rod to prevent the threaded sleeve rod from loosening, the limit plate is movably sleeved on the screw rod, and the receiving groove is arranged above the roller frame to receive the roller frame.

[0048] The beneficial effects of the utility model are:

[0049] The utility model can, during assembly, first sleeve the bearing on the main shaft, then sleeve the flange sleeve rod on the main shaft and fix it with a fixing screw, and then sleeve the bearing on the main shaft so that the bearings on both sides clamp the flange sleeve rod in the middle, and then put the entire main shaft into the shaft seat for assembly. When it is necessary to lubricate the bearing in the shaft seat, lubricating oil can be poured into the oil storage box, and the main shaft can be rotated at this time to drive the extrusion cam to rotate. During the rotation of the extrusion cam, the lubricating oil in the oil storage box can continuously flow into the bearing, and the inner ring of the bearing can be driven to rotate under the rotation of the main shaft, and the ball in the bearing can be moved at the same time. During the process, the lubricating oil can be evenly applied to the bearing, so that the bearing can be lubricated without removing the bearing, avoiding damage to the bearing during the removal process.

[0050] According to the utility model, when the main shaft needs to be connected to the motor for use, the screw rod can be rotated alone to recover the pressed wheel into the receiving groove. At this time, the rotating extrusion cam will no longer squeeze the receiving groove, thereby avoiding interference and influence on the operation of the main shaft, thereby ensuring the normal use of the main shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0052] Figure 1 A schematic diagram of a motor spindle assembly structure provided by an embodiment of the utility model;

[0053] Figure 2 A partial structural schematic diagram of a motor spindle assembly structure provided by an embodiment of the utility model;

[0054] Figure 3 A schematic cross-sectional view of a motor spindle assembly structure provided by an embodiment of the utility model;

[0055] Figure 4 A motor spindle assembly structure provided by the embodiment of the utility model Figure 3 Schematic diagram of the structure of part A;

[0056] Figure 5 A schematic diagram of a flanging sleeve rod structure of a motor spindle assembly structure provided by an embodiment of the utility model;

[0057] Figure 6 A schematic diagram of a spring structure of a motor spindle assembly structure provided by an embodiment of the utility model;

[0058] Figure 7 A schematic cross-sectional structure diagram of an oil storage box of a motor spindle assembly structure provided in an embodiment of the utility model.

[0059] Description of reference numerals:

[0060] 1. Shaft seat; 2. Bearing; 3. Spindle; 4. Lubrication hole; 401. Oil pipe; 402. Oil storage box; 403. Positioning groove; 404. Positioning block; 405. Oil leakage hole; 406. Connecting shaft; 407. Guide plate; 408. Oil filling port; 5. Gear; 501. U-shaped gear rod; 6. Flanged sleeve rod; 601. Extrusion cam; 602. Pressure wheel; 603. Roller frame; 604. Guide rod; 605. Screw rod; 606. Threaded sleeve rod; 607. Guide rod; 608. Spring; 609. Fixed screw; 610. Sliding groove; 611. Limit plate; 612. Storage groove. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0062] Embodiment 1:

[0063] like Figures 1 to 7 As shown, the utility model provides a motor spindle assembly structure, comprising: a shaft seat 1 for supporting, a bearing 2 arranged in the shaft seat 1 for supporting a rotating body, and a spindle 3 arranged on the inner ring of the bearing 2.

[0064] In order to enable the lubrication operation of the bearing 2 to be carried out without disassembling the bearing 2, a lubrication structure for lubricating the bearing 2 is arranged on the bearing 2, and the lubrication structure includes an oil storage structure for allowing the lubricating oil to circulate and a limiting structure for limiting the flow rate of the lubricating oil. A linkage structure is arranged on the limiting structure so that the limiting structure can move with the main shaft 3.

[0065] Among them, the oil storage structure includes a lubrication hole 4 opened on the outer ring of the bearing 2, an oil pipe 401 arranged on the shaft seat 1, the oil pipe 401 is connected to the lubrication hole 4, an oil storage box 402 arranged on the oil pipe 401, the oil storage box 402 is connected to the oil pipe 401, a positioning groove 403 opened on the inner wall of the shaft seat 1, a positioning block 404 slidably installed in the positioning groove 403, an oil filling port 408 opened on the oil storage box 402 for adding lubricating oil into the oil storage box 402, the positioning block 404 is arranged on the outer ring of the bearing 2, and is used to prevent the outer ring of the bearing 2 from shifting. The lubricating oil is added to the oil storage box 402 through the oil filling port 408, and the lubricating oil will flow into the oil leakage hole 405. The lubricating oil in the oil leakage hole 405 can flow into the oil pipe 401, and then flow into the bearing 2 through the oil pipe 401 to lubricate the bearing 2.

[0066] Among them, the limiting structure includes an oil leakage hole 405 opened on the inner wall of the oil storage box 402, a connecting shaft 406 rotatably installed in the oil storage box 402, a guide plate 407 arranged on the connecting shaft 406, the guide plate 407 is in contact with the inner wall of the oil leakage hole 405, and a transmission component arranged on the connecting shaft 406 for driving the connecting shaft 406 to rotate. The oil leakage hole 405 is connected to the oil pipe 401, and the guide plates 407 are arranged in multiple groups. The oil leakage hole 405 can be blocked in a static state. During the rotation of the connecting shaft 406, the guide plates 407 can drive the guide plates 407 to perform circular motion in the oil leakage hole 405. During the circular motion, the guide plates 407 can drive the lubricating oil in the oil leakage hole 405 to flow into the oil pipe 401.

[0067] Specifically, the transmission assembly includes a gear 5 arranged at one end of the connecting shaft 406 and a U-shaped gear rod 501 slidably installed on one side of the oil storage box 402 for driving the gear 5 to rotate. The U-shaped gear rod 501 is meshed with the gear 5. When the U-shaped gear rod 501 moves, it can drive the gear 5 to rotate by meshing with the gear 5. The rotating gear 5 can drive the connecting shaft 406 to rotate.

[0068] The linkage structure includes a flanging sleeve rod 6 movably sleeved on the main shaft 3, an extrusion cam 601 arranged on the flanging sleeve rod 6, a pressure wheel 602 arranged above the extrusion cam 601, the pressure wheel 602 contacts the extrusion cam 601, a roller frame 603 rotatably mounted on the pressure wheel 602 to provide support for the pressure wheel 602, a guide rod 604 slidably mounted on the inner wall of the shaft seat 1 to guide the movement of the roller frame 603, the guide rod 604 is arranged on one side of the roller frame 603, a screw rod 605 rotatably mounted on the roller frame 603, a threaded sleeve rod 606 threadedly sleeved on the screw rod 605, a fixed screw 609 threadedly mounted on the inner wall of the flanging sleeve rod 6, and a screw rod 609 arranged on the threaded sleeve rod 60 6 is used for limiting the movement of the threaded sleeve rod 606, the threaded sleeve rod 606 is arranged on one side of the U-shaped gear rod 501, the fixed screw 609 is in contact with the outer wall of the main shaft 3, and is used to fix the position of the flanging sleeve rod 6, and the main shaft 3 is rotated. The main shaft 3 can drive the flanging sleeve rod 6 to rotate during the rotation process, so that the flanging sleeve rod 6 drives the extrusion cam 601 to rotate. During the rotation process of the extrusion cam 601, it will reciprocate and squeeze the pressure wheel 602 and rotate it. When the pressure wheel 602 is squeezed, it will drive the roller frame 603 to move. The moving roller frame 603 can drive the threaded sleeve rod 606 to move through the screw rod 605, and the threaded sleeve rod 606 can drive the U-shaped gear rod 501 to move during the movement.

[0069] Specifically, the limit assembly includes a guide rod 607 arranged on the shaft seat 1 for guiding the movement of the threaded sleeve 606, a spring 608 slidably sleeved on the guide rod 607, the guide rod 607 is slidably installed on the threaded sleeve 606, and the two ends of the spring 608 are respectively installed on the shaft seat 1 and the threaded sleeve 606, and are used to reset the movement of the threaded sleeve 606. The moving threaded sleeve 606 can slide on the guide rod 607 and stretch the spring 608, so that the spring 608 is stretched to store energy. When the continuously rotating extrusion cam 601 disengages from the extrusion of the pressure wheel 602, the spring 608 in the stretched energy storage state will reset and pull the threaded sleeve 606 to reset.

[0070] Embodiment 2:

[0071] On the basis of Example 1, in order to avoid interference with the operation of the main shaft 3 when the main shaft 3 is used normally, a storage structure that avoids interference with the rotating main shaft 3 is arranged on the limiting structure.

[0072] Among them, the storage structure includes a sliding groove 610 opened on the inner wall of the shaft seat 1, a limit plate 611 slidably installed in the sliding groove 610, and a storage groove 612 opened on the inner wall of the shaft seat 1 for storing the roller frame 603. The limit plate 611 is arranged on one side of the threaded sleeve 606 to prevent the threaded sleeve 606 from loosening. The limit plate 611 is movably sleeved on the screw rod 605, and the storage groove 612 is arranged above the roller frame 603. The screw rod 605 is rotated alone, and the rotating screw rod 605 can slide on the screw rod 605 by cooperating with the thread of the threaded sleeve 606, so that the rotating threaded sleeve 606 can rotate on the roller frame 603 and drive the roller frame 603 to move, and move the roller frame 603 into the storage groove 612.

[0073] Working principle:

[0074] During installation, the bearing 2 can be first sleeved on the main shaft 3, and then the flange sleeve rod 6 can be sleeved on the main shaft 3. By rotating the fixing screw 609 on the flange sleeve rod 6, the rotating fixing screw 609 can be moved by cooperating with the thread of the flange sleeve rod 6, so that the movable fixing screw 609 is against the outer wall of the main shaft 3, thereby fixing the flange sleeve rod 6 on the main shaft 3, and then the bearing 2 is sleeved on the main shaft 3, so that the bearing 2 clamps the flange sleeve rod 6 in the middle, and then the main shaft 3 is completely placed in the shaft seat 1 for assembly. During the process, the positioning block 404 on the bearing 2 can be aligned with the positioning groove 403 in the shaft seat 1 and inserted, which can limit the outer ring of the bearing 2. When it is necessary to lubricate the bearing 2 in the shaft seat 1, lubricating oil can be added through the oil filling port 408. In the oil storage box 402, the lubricating oil will flow into the oil leakage hole 405 and be blocked by the guide plate 407, and then the main shaft 3 will be rotated. During the rotation process, the main shaft 3 can drive the flange sleeve rod 6 to rotate, so that the flange sleeve rod 6 drives the extrusion cam 601 to rotate. During the rotation process of the extrusion cam 601, it will reciprocate and squeeze the pressure wheel 602 to rotate. When the pressure wheel 602 is squeezed, it will drive the roller frame 603 to move, and the roller frame 603 will drive the guide rod 604 to slide on the inner wall of the shaft seat 1, thereby limiting the movement direction of the roller frame 603. The continuously moving roller frame 603 can drive the screw rod 605 to move, and the screw rod 605 can drive the threaded sleeve rod 606 to move by cooperating with the thread of the threaded sleeve rod 606. The threaded sleeve rod 606 can The limit plate 611 is driven to slide in the sliding groove 610, which can prevent the threaded sleeve 606 from loosening, and the continuously moving threaded sleeve 606 can slide on the guide rod 607 and stretch the spring 608, so that the spring 608 stretches and stores energy, and the moving threaded sleeve 606 will drive the U-shaped gear rod 501 to move. When the U-shaped gear rod 501 moves, it can drive the gear 5 to rotate by meshing with the gear 5. The rotating gear 5 can drive the connecting shaft 406 to rotate, so that the connecting shaft 406 drives the guide vane 407 to perform a circular motion in the oil leakage hole 405. During the circular motion, the guide vane 407 can drive the lubricating oil in the oil leakage hole 405 to flow into the oil pipe 401, and then flow into the bearing 2 through the oil pipe 401. When the extrusion cam 606 is continuously rotated, the lubricating oil in the oil leakage hole 405 flows into the oil pipe 401. Then, the lubricating oil flows into the bearing 2 through the oil pipe 401. When the pressing wheel 602 is released from the pressing state, the spring 608 in the stretched energy storage state will reset and pull the threaded sleeve 606 to reset, and then the threaded sleeve 606 can achieve the effect of reciprocating movement under the continuous rotation of the pressing cam 601. When the main shaft 3 needs to be connected to the motor for normal use, the screw rod 605 can be rotated alone, and the rotating screw rod 605 can slide on the screw rod 605 by cooperating with the thread of the threaded sleeve 606, so that the rotating threaded sleeve 606 can rotate on the roller frame 603 and drive the roller frame 603 to move, and move the roller frame 603 into the storage groove 612. At this time, the pressing cam 601 will not squeeze the pressing wheel 602 during the rotation process, so that the lubrication operation will not be performed during the rotation of the main shaft 3.Avoid affecting its normal operation.

[0075] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A motor spindle assembly structure, characterized in that: include: Axle seat (1), used for supporting; A bearing (2) is arranged in the shaft seat (1) and is used to support the rotating body; A main shaft (3) is arranged on the inner ring of the bearing (2); A lubrication structure, arranged on the bearing (2) and used for lubricating the bearing (2); Wherein, the lubricating structure includes an oil storage structure for circulating the lubricating oil and a limiting structure for limiting the flow rate of the lubricating oil; The limiting structure is provided with a linkage structure that enables the limiting structure to move along with the main shaft (3) and a storage structure that avoids interference with the rotating main shaft (3).

2. A motor spindle assembly structure as claimed in claim 1, characterized in that: The oil storage structure comprises: A lubrication hole (4) is provided on the outer ring of the bearing (2); An oil pipe (401) is arranged on the shaft seat (1), and the oil pipe (401) is connected to the lubrication hole (4); An oil storage box (402) is arranged on the oil pipe (401), and the oil storage box (402) is connected to the oil pipe (401); A positioning groove (403) is formed on the inner wall of the shaft seat (1); A positioning block (404) is slidably mounted in the positioning groove (403); An oil filling port (408) is provided on the oil storage box (402) and is used for adding lubricating oil into the oil storage box (402); The positioning block (404) is arranged on the outer ring of the bearing (2) to prevent the outer ring of the bearing (2) from shifting.

3. A motor spindle assembly structure as claimed in claim 1, characterized in that: The restriction structure includes: An oil leakage hole (405) is provided on the inner wall of the oil storage box (402); A connecting shaft (406) is rotatably mounted in the oil storage box (402); A guide plate (407) is arranged on the connecting shaft (406), and the guide plate (407) is in contact with the inner wall of the oil leakage hole (405); A transmission assembly, arranged on the connecting shaft (406), and used to drive the connecting shaft (406) to rotate; The oil leakage hole (405) is connected to the oil pipe (401), and the guide plates (407) are arranged in multiple groups, which can block the oil leakage hole (405) in a static state.

4. A motor spindle assembly structure as claimed in claim 3, characterized in that: The transmission assembly comprises a gear (5) arranged at one end of the connecting shaft (406) and a U-shaped gear rod (501) slidably mounted on one side of the oil storage box (402); the U-shaped gear rod (501) is meshed with the gear (5) to drive the gear (5) to rotate.

5. The motor spindle assembly structure according to claim 1, characterized in that: The linkage structure includes: A flanging sleeve rod (6) movably sleeved on the main shaft (3); An extrusion cam (601) is arranged on the flanging sleeve rod (6); The pressure wheel (602) is arranged above the extrusion cam (601), and the pressure wheel (602) is in contact with the extrusion cam (601); A roller frame (603) is rotatably mounted on the pressure wheel (602) to provide support for the pressure wheel (602); A guide rod (604) is slidably mounted on the inner wall of the shaft seat (1), and the guide rod (604) is arranged on one side of the roller frame (603) to guide the movement of the roller frame (603); A screw rod (605) is rotatably mounted on the roller frame (603); A threaded sleeve rod (606) is threadedly sleeved on the screw rod (605); A fixing screw (609) threadably mounted on the inner wall of the flange sleeve (6); A limiting assembly is arranged on the threaded sleeve (606) and is used to limit the movement of the threaded sleeve (606); The threaded sleeve rod (606) is arranged on one side of the U-shaped gear rod (501), and the fixing screw rod (609) is in contact with the outer wall of the main shaft (3) to fix the position of the flanging sleeve rod (6).

6. A motor spindle assembly structure as claimed in claim 5, characterized in that: The limiting component comprises: A guide rod (607) is arranged on the shaft seat (1); A spring (608) is slidably sleeved on the guide rod (607); The guide rod (607) is slidably mounted on the threaded sleeve (606) to guide the movement of the threaded sleeve (606); the two ends of the spring (608) are respectively mounted on the shaft seat (1) and the threaded sleeve (606) to reset the movement of the threaded sleeve (606).

7. The motor spindle assembly structure according to claim 1, characterized in that: The storage structure comprises: A sliding groove (610) is formed on the inner wall of the shaft seat (1); A limit plate (611) is slidably mounted in the sliding groove (610); A receiving groove (612) is formed on the inner wall of the shaft seat (1); The limiting plate (611) is arranged on one side of the threaded sleeve (606) to prevent the threaded sleeve (606) from loosening, the limiting plate (611) is movably sleeved on the screw rod (605), and the receiving groove (612) is arranged above the roller frame (603) to receive the roller frame (603).

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