CN217824537U

CN217824537U - Motor spindle forging convenient to maintenance

Info

Publication number: CN217824537U
Application number: CN202220735188.4U
Authority: CN
Inventors: 许欢; 徐凯; 许亮
Original assignee: Zhuji Hongmao Heavy Industry Machinery Co ltd
Current assignee: Zhuji Hongmao Heavy Industry Machinery Co ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-11-15
Anticipated expiration: 2032-03-30

Abstract

The utility model provides a motor spindle forging convenient to maintenance belongs to motor spindle technical field. It includes motor spindle, the motor spindle outside wear-resisting layer of making by wear-resistant coating has, motor spindle one side bearing installation end has, bearing installation end on the cover be equipped with two bearings, motor spindle on still be equipped with the bearing fixing base. The bearing fixing seat can limit the bushing on the motor spindle, prevent the bearing from axially sliding on the motor spindle, the axial limiting structure can be convenient for the motor spindle to be quickly detached from the bearing fixing seat, and can prevent the motor spindle from axially moving in the bearing fixing seat, the guide seat matched positioning guide groove on the bearing fixing seat can be used for positioning the installation position between the motor spindle and the bearing fixing seat, and the outer side of the motor spindle is provided with a wear-resistant layer made of wear-resistant paint, so that the wear resistance of the motor spindle can be improved.

Description

Motor spindle forging convenient to maintenance

Technical Field

The utility model belongs to the technical field of motor spindle, a motor spindle forging convenient to maintenance is related to.

Background

When the main shaft of motor is exporting, often need establish the bearing with the junction cover of equipment, the general bearing fixing base of bearing is fixed, and can set up axial stop gear in the bearing fixing base in order to prevent that motor spindle from appearing the axial displacement, so just need pull down the bearing fixing base earlier when leading to needing to dismantle motor spindle, waste time and energy.

In order to overcome the defects of the prior art, people continuously explore and propose various solutions, for example, a chinese patent discloses a motor spindle [ application number: 201780064501.8] with an electromagnetic first drive system, wherein a stator unit and a rotor unit which can be rotated about an axis of rotation are provided, which rotor unit has at least one rotor shaft and a tool holder for holding a machining tool, wherein at least one bearing unit for rotatably supporting the rotor unit is provided in the stator unit, wherein the tool holder is provided in an end region of the rotor unit, wherein the stator unit has at least one stator housing with an end section which is provided at least in the end region of the rotor unit, but the above-mentioned problems also exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, a motor spindle forging convenient to maintenance is provided.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the utility model provides a motor spindle forging convenient to maintenance, includes motor spindle, the motor spindle outside have the wearing layer of making by wear-resistant coating, motor spindle one side bearing installation end has, bearing installation end on the cover be equipped with two bearings, motor spindle on still be equipped with the bearing fixing base, motor spindle rotate with the bearing fixing base through quick assembly disassembly's axial limit structure and connect, the bearing installation end on still be equipped with two and the positioning guide way of axial limit structure dislocation set, the bearing fixing base on be equipped with the guide block that inserts to the positioning guide way in.

In foretell motor spindle forging convenient to maintenance, axial limit structure including set up the annular spacing groove on the bearing fixing base, the junction of bearing installation end and bearing fixing base be equipped with two piece at least axial stoppers, the axial stopper along motor spindle's radial setting and can insert to annular spacing inslot, the bearing installation end in still be equipped with the ejecting subassembly that can drive a plurality of axial stoppers and move radially outwards in step and can drive the axial stopper along the recovery subassembly that radially inwards contracts.

In foretell motor spindle forging convenient to maintenance, ejecting subassembly include along the axial setting in the bearing installation end ejector pin groove, the cross-section in ejector pin groove be the axial lead in circular and ejector pin groove and the axial lead coincidence of bearing installation end, ejector pin groove outer end run through the setting, the ejector pin inslot sliding connection have the ejector pin, the bearing installation end outside still be equipped with the driving piece that can drive the ejector pin along axial reciprocating motion.

In the conveniently maintained motor spindle forging, the inner end of the ejector rod is provided with an annular inclined step, the inner diameter of the inclined step is gradually increased from outside to inside, and the inner end of the axial limiting block is provided with an inclined plane with the same inclination as the inclined step.

In foretell motor spindle forging convenient to maintenance, the driving piece include the terminal surface rotation with the bearing installation end and be connected annular drive block, the ejector pin outer end insert to in the annular drive block, the ejector pin on still be equipped with the external screw thread, annular drive block inner wall on be equipped with the external screw thread of the internal thread looks adaptation on the ejector pin.

In the conveniently maintained motor spindle forging, the end face of the bearing mounting end is further provided with an annular groove with a T-shaped section, and the inner end face of the annular driving block is further provided with an annular connecting block inserted into the annular groove.

In foretell motor spindle forging convenient to maintenance, retrieve the subassembly including setting up the spring chamber at the axial stopper lateral part, the axial stopper lateral part link firmly the recovery slider that inserts to the spring intracavity, recovery slider downside link firmly and retrieve the spring.

In foretell motor spindle forging convenient to maintenance, the bearing fixing base in still be equipped with the oiling runner that the cross-section is annular, the oiling runner inboard link to each other with annular spacing groove through a plurality of inlet ports that set up along circumference, the bearing fixing base on still be equipped with the oil filler point that links to each other with the oiling runner, the oil filler point in still be equipped with the end cap.

In foretell motor spindle forging convenient to maintenance, the bearing fixing base in be equipped with the bearing installation cavity, two bearings support each other and lean on and the outside of bearing outer ring and bearing installation cavity inner wall support and lean on, bearing installation cavity one side run through the setting, the bearing installation cavity with be located inboard bearing between be equipped with outer spacing ring and interior spacing ring No. one, outer spacing ring and bearing outer ring inner support and lean on, interior spacing ring and bearing inner ring inner support and lean on, the diameter of bearing installation end be less than with motor spindle's diameter, bearing installation end and motor spindle between still be equipped with spacing step, the bearing inner ring outer end and the spacing step that are located the outside support and lean on.

In foretell motor spindle forging convenient to maintenance, the bearing fixing base on still be equipped with the cross-section through a plurality of bolt detachables and be annular side shield, the side shield inboard link firmly No. two outer spacing rings, no. two outer spacing ring the inner outer loop that leans on with the bearing that is located the outside support.

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

1. the bearing fixing seat can limit the bushing on the motor spindle, prevent the bearing from axially sliding on the motor spindle, the axial limiting structure can be convenient for the motor spindle to be rapidly detached from the bearing fixing seat, and can prevent the motor spindle from axially moving in the bearing fixing seat, the guide seat matched positioning guide groove on the bearing fixing seat can be used for positioning the installation position between the motor spindle and the bearing fixing seat, and the outer side of the motor spindle is provided with a wear-resistant layer made of wear-resistant paint, so that the wear-resistant performance of the motor spindle can be improved.

2. The ejection assembly can drive the axial limiting blocks to synchronously move outwards along the radial direction to be inserted into the annular limiting grooves, the axial limiting blocks are matched with the annular limiting grooves to axially limit the motor spindle, when the motor spindle needs to be disassembled, the ejection assembly is separated from the axial limiting blocks, and the recovery assembly can drive the axial limiting blocks to retract inwards along the radial direction to be separated from the annular limiting grooves, so that the motor spindle can be directly pulled out of the bearing fixing seat.

3. The ejector pin can outwards be ejecting through the cooperation of slope step and inclined plane when inwards moving with the axial stopper, and thereby because the slope step is the annular makes a plurality of axial stoppers of ejector pin cooperation once.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic diagram of the overall structure provided by the present invention;

FIG. 2 is a schematic structural view of a spindle of the motor;

fig. 3 is an enlarged schematic view at a in fig. 1.

In the figure, a motor spindle 1, a wear-resistant layer 2, a bearing mounting end 3, a bearing 4, a bearing fixing seat 5, an axial limiting structure 6, an annular limiting groove 7, an axial limiting block 8, an ejection assembly 9, a recovery assembly 10, an ejector rod groove 11, an ejector rod 12, a driving piece 13, an inclined step 14, an inclined surface 15, an annular driving block 16, an annular groove 17, an annular connecting block 18, a spring cavity 19, a recovery slider 20, a recovery spring 21, an oil injection flow channel 22, an oil inlet hole 23, an oil injection hole 24, a bearing mounting cavity 25, a first outer limiting ring 26, an inner limiting ring 27, a limiting step 28, a side baffle 29, a second outer limiting ring 30 and a positioning guide groove 31.

Detailed Description

As shown in fig. 1-3, a motor spindle forging convenient to maintenance, including motor spindle 1, 1 outside of motor spindle have the wearing layer 2 of making by wear-resistant coating, 1 one side of motor spindle bearing installation end 3 has, bearing installation end 3 go up the cover and be equipped with two bearings 4, motor spindle 1 on still be equipped with bearing fixing base 5, motor spindle 1 rotate with bearing fixing base 5 through axial limit structure 6 that can quick assembly disassembly and connect, bearing installation end 3 on still be equipped with two and axial limit structure 6 dislocation set's positioning guide groove 31, bearing fixing base 5 on be equipped with and insert to the guide block in the positioning guide groove 31.

In this embodiment, bearing fixing base 5 can carry on spacingly to the bush on the motor spindle, prevent that the bearing from the axial slip on the motor spindle, axial limit structure can be convenient for the motor spindle to dismantle from the bearing fixing base fast, and can prevent that motor spindle from appearing axial displacement in the bearing fixing base, the guide holder cooperation location guide way on the bearing fixing base can fix a position the mounted position between motor spindle and the bearing fixing base, 1 outside of motor spindle has the wearing layer 2 of being made by wear-resistant coating and can improve motor spindle's wear resistance.

Specifically, as shown in fig. 1-3, the axial limiting structure 6 includes an annular limiting groove 7 disposed on the bearing fixing seat 5, at least two axial limiting blocks 8 are disposed at the joint of the bearing mounting end 3 and the bearing fixing seat 5, the axial limiting blocks 8 are disposed along the radial direction of the motor main shaft 1 and can be inserted into the annular limiting groove 7, and the bearing mounting end 3 is further provided therein with an ejection assembly 9 capable of driving the axial limiting blocks 8 to move radially outward and a recovery assembly 10 capable of driving the axial limiting blocks 8 to retract radially inward. The ejection assembly 9 can drive the axial limiting blocks 8 to synchronously move outwards along the radial direction until the axial limiting blocks are inserted into the annular limiting grooves, the axial limiting blocks are matched with the annular limiting grooves to axially limit the motor spindle, when the motor spindle needs to be disassembled, the ejection assembly is separated from the axial limiting blocks, and the recovery assembly can drive the axial limiting blocks to retract inwards along the radial direction until the axial limiting blocks are separated from the annular limiting grooves, so that the motor spindle can be directly pulled out of the bearing fixing seat.

Specifically, as shown in fig. 1 to fig. 3, the ejection assembly 9 includes a push rod groove 11 axially disposed in the bearing mounting end 3, the cross section of the push rod groove 11 is circular, the axial line of the push rod groove 11 coincides with the axial line of the bearing mounting end 3, the outer end of the push rod groove 11 is disposed in a penetrating manner, a push rod 12 is slidably connected in the push rod groove 11, and a driving member 13 capable of driving the push rod 12 to reciprocate axially is further disposed outside the bearing mounting end 3. The driving piece can drive the ejector rod to axially reciprocate in the ejector rod groove; the inner end of the ejector rod 12 is provided with an annular inclined step 14, the inner diameter of the inclined step 14 is gradually increased from outside to inside, and the inner end of the axial limiting block 8 is provided with an inclined surface 15 with the same inclination as the inclined step 14. When the ejector rod moves inwards, the axial limiting blocks can be ejected outwards through the matching of the inclined steps 14 and the inclined surfaces, and the ejector rod can be matched with the axial limiting blocks at one time due to the fact that the inclined steps are annular.

Specifically, as shown in fig. 1 to fig. 3, the driving member 13 includes an annular driving block 16 rotatably connected to the end surface of the bearing mounting end 3, the outer end of the ejector rod 12 is inserted into the annular driving block 16, the ejector rod 12 is further provided with an external thread, and the inner wall of the annular driving block 16 is provided with an external thread matched with the internal thread of the ejector rod 12. The annular driving block can drive the ejector rod to axially move through the threads in a rotating mode. The end surface of the bearing mounting end 3 is also provided with an annular groove 17 with a T-shaped section, and the inner end surface of the annular driving block 16 is also provided with an annular connecting block 18 inserted into the annular groove 17. The annular connecting block with the T-shaped section is matched with the annular groove to prevent the annular driving block from being separated from the motor spindle.

Specifically, as shown in fig. 1-3, the recovery assembly 10 includes a spring cavity 19 disposed at a side portion of the axial limiting block 8, the side portion of the axial limiting block 8 is fixedly connected with a recovery slider 20 inserted into the spring cavity 19, and a recovery spring 21 is fixedly connected to a lower side of the recovery slider 20. After the ejector rod moves outwards to be separated from the axial limiting block, the recovery spring can drive the recovery sliding block to move inwards, and the recovery sliding block moves inwards to drive the axial limiting block to move inwards so that the axial limiting block and the bearing fixing seat are separated.

Preferably, as shown in fig. 1 to 3, an oil filling flow passage 22 having an annular cross section is further provided in the bearing fixing seat 5, the inner side of the oil filling flow passage 22 is connected to the annular limiting groove 7 through a plurality of oil inlet holes 23 circumferentially provided, an oil filling hole 24 connected to the oil filling flow passage 22 is further provided on the bearing fixing seat 5, and a plug is further provided in the oil filling hole 24. Lubricating oil can be injected into the annular limiting groove through the oil filling hole, the oil filling flow channel and the oil inlet hole, and friction between the axial limiting block and the inner wall of the annular limiting groove is reduced.

Specifically speaking, combine as shown in fig. 1, be equipped with bearing installation cavity 25 in the bearing fixing base 5, two bearings 4 support each other and support and the outside of bearing 4 outer ring supports and support with bearing installation cavity 25 inner wall and support, bearing installation cavity 25 one side run through the setting, bearing installation cavity 25 and the bearing 4 that is located the inboard between be equipped with one number outer spacing ring 26 and interior spacing ring 27, one number outer spacing ring 26 and bearing 4 outer ring inner support and support, interior spacing ring 27 and bearing 4 inner ring support and support, the diameter of bearing installation end 3 be less than with motor spindle 1's diameter, bearing installation end 3 and motor spindle 1 between still be equipped with spacing step 28, the bearing 4 inner ring outer end and the spacing step 28 that are located the outside support and support. Still be equipped with through a plurality of bolt detachablely on the bearing fixing base 5 and be annular side shield 29 in cross-section, side shield 29 inboard link firmly No. two outer spacing rings 30, no. two outer spacing ring 30 the inner and the outer loop that is located the bearing 4 in the outside support and lean on. The first outer retainer ring 26, the inner retainer ring, the retaining step 28 and the second outer retainer ring 30 cooperate to axially retain the two bearings.

The utility model discloses a theory of operation is: the bearing fixing seat 5 can limit the bushing on the motor spindle to prevent the bearing from axially sliding on the motor spindle, the axial limiting structure can facilitate the motor spindle to be quickly detached from the bearing fixing seat and prevent the motor spindle from axially moving in the bearing fixing seat, the guide seat on the bearing fixing seat is matched with the positioning guide groove to position the mounting position between the motor spindle and the bearing fixing seat, and the wear-resistant layer 2 made of wear-resistant paint is arranged on the outer side of the motor spindle 1 to improve the wear-resistant performance of the motor spindle;

the ejection assembly 9 can drive the plurality of axial limiting blocks 8 to synchronously move outwards along the radial direction until the axial limiting blocks are inserted into the annular limiting grooves, the axial limiting blocks can be matched with the annular limiting grooves to axially limit the motor spindle, when the motor spindle needs to be disassembled, the ejection assembly is separated from the axial limiting blocks, the recovery assembly can drive the axial limiting blocks to retract inwards along the radial direction until the axial limiting blocks are separated from the annular limiting grooves, so that the motor spindle can be directly drawn out from the bearing fixing seat, the driving piece can drive the ejector rod to axially reciprocate in the ejector rod groove, the axial limiting blocks can be ejected outwards through the matching of the inclined steps 14 and the inclined planes when the ejector rod moves inwards, the ejector rod can be matched with the plurality of axial limiting blocks at one time due to the annular inclined steps, the annular driving block can drive the ejector rod to axially move through threads, the annular connecting block with the T-shaped section can be matched with the annular groove to prevent the annular driving block from being separated from the motor spindle, after the ejector rod moves outwards to be separated from the axial limiting blocks, the recovery spring can drive the recovery slider to inwards move, and the axial limiting blocks can drive the axial limiting blocks to inwards move, so that the axial limiting blocks and the bearing are separated from the fixing seat;

can pour into lubricating oil into annular spacing inslot into through oil filler point, oiling runner and inlet port, reduce the friction between axial stopper and the annular spacing inslot wall, no. one outer spacing ring 26, interior spacing ring, spacing step 28 and No. two outer spacing ring 30 cooperation can carry out axial spacing to two bearings.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the motor spindle 1, the wear-resistant layer 2, the bearing mounting end 3, the bearing 4, the bearing fixing seat 5, the axial limiting structure 6, the annular limiting groove 7, the axial limiting block 8, the ejection assembly 9, the recovery assembly 10, the ejector rod groove 11, the ejector rod 12, the driving member 13, the inclined step 14, the inclined surface 15, the annular driving block 16, the annular groove 17, the annular connecting block 18, the spring cavity 19, the recovery slider 20, the recovery spring 21, the oil injection runner 22, the oil inlet 23, the oil injection hole 24, the bearing mounting cavity 25, the first outer limiting ring 26, the inner limiting ring 27, the limiting step 28, the side baffle 29, the second outer limiting ring 30, the positioning guide groove 31, etc. are used herein more, these terms are used only for more conveniently describing and explaining the essence of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a motor spindle forging convenient to maintenance, includes motor spindle (1), its characterized in that, motor spindle (1) outside have wearing layer (2) of being made by wear-resistant coating, motor spindle (1) one side bearing installation end (3) have, bearing installation end (3) go up the cover and be equipped with two bearings (4), motor spindle (1) on still be equipped with bearing fixing base (5), motor spindle (1) rotate with bearing fixing base (5) through axial limit structure (6) that can quick assembly disassembly and connect, bearing installation end (3) on still be equipped with two and axial limit structure (6) dislocation set's positioning guide way (31), bearing fixing base (5) on be equipped with and insert to the guide block in positioning guide way (31).

2. The motor spindle forging convenient to maintain as claimed in claim 1, wherein the axial limiting structure (6) comprises an annular limiting groove (7) formed in the bearing fixing seat (5), at least two axial limiting blocks (8) are arranged at the joint of the bearing mounting end (3) and the bearing fixing seat (5), the axial limiting blocks (8) are radially arranged along the motor spindle (1) and can be inserted into the annular limiting groove (7), and an ejection assembly (9) capable of driving the axial limiting blocks (8) to synchronously move radially outwards and a recovery assembly (10) capable of driving the axial limiting blocks (8) to retract radially inwards are further arranged in the bearing mounting end (3).

3. The motor spindle forging convenient to maintain as claimed in claim 2, wherein the ejection assembly (9) comprises an ejector rod groove (11) axially arranged in the bearing mounting end (3), the cross section of the ejector rod groove (11) is circular, the axial lead of the ejector rod groove (11) coincides with the axial lead of the bearing mounting end (3), the outer end of the ejector rod groove (11) is arranged in a penetrating manner, an ejector rod (12) is slidably connected in the ejector rod groove (11), and a driving piece (13) capable of driving the ejector rod (12) to axially reciprocate is further arranged on the outer side of the bearing mounting end (3).

4. The motor spindle forging convenient to maintain as claimed in claim 3, wherein the inner end of the ejector rod (12) is provided with an annular inclined step (14), the inner diameter of the inclined step (14) is gradually increased from outside to inside, and the inner end of the axial limiting block (8) is provided with an inclined surface (15) with the same inclination as that of the inclined step (14).

5. The motor spindle forging convenient to maintain as claimed in claim 3, wherein the driving member (13) comprises an annular driving block (16) rotatably connected with the end face of the bearing mounting end (3), the outer end of the ejector rod (12) is inserted into the annular driving block (16), the ejector rod (12) is further provided with an external thread, and the inner wall of the annular driving block (16) is provided with an external thread matched with the internal thread on the ejector rod (12).

6. The motor spindle forging convenient to maintain as claimed in claim 5, wherein an annular groove (17) with a T-shaped cross section is further formed in the end face of the bearing mounting end (3), and an annular connecting block (18) inserted into the annular groove (17) is further arranged on the inner end face of the annular driving block (16).

7. The motor spindle forging convenient to maintain according to any one of claims 2 to 6, wherein the recovery assembly (10) comprises a spring cavity (19) arranged at the side part of the axial limiting block (8), the side part of the axial limiting block (8) is fixedly connected with a recovery sliding block (20) inserted into the spring cavity (19), and the lower side of the recovery sliding block (20) is fixedly connected with a recovery spring (21).

8. The motor spindle forging convenient to maintain according to any one of claims 2 to 6, wherein an oil injection flow passage (22) with an annular cross section is further formed in the bearing fixing seat (5), the inner side of the oil injection flow passage (22) is connected with an annular limiting groove (7) through a plurality of oil inlet holes (23) arranged along the circumferential direction, an oil injection hole (24) connected with the oil injection flow passage (22) is further formed in the bearing fixing seat (5), and a plug is further arranged in the oil injection hole (24).

9. The motor spindle forging convenient to maintain as claimed in any one of claims 1 to 6, wherein a bearing installation cavity (25) is formed in the bearing fixing seat (5), the two bearings (4) are abutted against each other, the outer side of the outer ring of each bearing (4) is abutted against the inner wall of the corresponding bearing installation cavity (25), one side of each bearing installation cavity (25) is arranged in a penetrating manner, an outer limiting ring (26) and an inner limiting ring (27) are arranged between the corresponding bearing installation cavity (25) and the bearing (4) located on the inner side, the inner ends of the outer limiting rings (26) and the corresponding bearing (4) are abutted against each other, the diameter of each bearing installation end (3) is smaller than that of the motor spindle (1), a limiting step (28) is further arranged between each bearing installation end (3) and the motor spindle (1), and the outer ends of the inner rings of the corresponding bearing (4) located on the outer side are abutted against the limiting step (28).

10. The motor spindle forging convenient to maintain according to claim 9, wherein a side baffle (29) with an annular cross section is detachably arranged on the bearing fixing seat (5) through a plurality of bolts, a second outer limiting ring (30) is fixedly connected to the inner side of the side baffle (29), and the inner end of the second outer limiting ring (30) abuts against the outer ring of the bearing (4) located on the outer side.