A direct-connected integrated hollow shaft motor mechanism

Abstract

The present invention relates to the field of motor technology, and specifically to a direct-connected integrated hollow shaft motor mechanism, comprising a hollow shaft body and a bearing mounting portion provided on the hollow shaft body, wherein the bearing mounting portion is used to install a bearing, a tapered cavity is provided at the end of the hollow shaft body, an annular inner cavity is provided inside the hollow shaft body, an inertia counterweight ring is provided in the annular inner cavity, and the inertia counterweight ring is coaxially arranged with the hollow shaft body; when the motor is started or stopped, the present invention can drive the conversion inflation structure to inflate the compressed air chamber through the relative rotation between the inertia counterweight ring and the hollow shaft body, and autonomously generate compressed airflow to regularly clean the bearings on the bearing mounting portion.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a direct-connected integrated hollow shaft motor mechanism. Background Art

[0002] The rotor of the motor outputs rotational driving force to the outside through the shaft. In order to achieve lightweight and improve space utilization, more and more motor shafts adopt a hollow structure. The hollow motor shaft is installed with the motor housing through bearings. Therefore, the state of the bearing is related to the quietness and stability of the motor. The factor that has the greatest impact on the life of the bearing is dust. The closed bearings used in traditional technologies can play a certain dust-proof role, but their heat dissipation performance is greatly reduced, and they are not suitable for scenarios such as high-speed motors where the bearings generate large amounts of heat. Open bearings have excellent heat dissipation capabilities, but after dust accumulates, their service life will be shortened, and the existing technology lacks an automatic periodic cleaning function. Summary of the invention

[0003] The object of the present invention is to provide a direct-coupled integrated hollow shaft motor mechanism to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a direct-connected integrated hollow shaft motor mechanism, comprising a hollow shaft body and a bearing mounting portion provided on the hollow shaft body, the bearing mounting portion being used to install a bearing, a tapered cavity being provided at the end of the hollow shaft body, an annular inner cavity being provided inside the hollow shaft body, an inertia counterweight ring being provided in the annular inner cavity, the inertia counterweight ring being provided coaxially with the hollow shaft body, and the inertia counterweight ring being able to rotate relative to the hollow shaft body, a compressed air chamber and a transverse air passage being provided inside the hollow shaft body, a conversion inflation structure and a holding structure being provided inside the hollow shaft body Continuous pressure relief structure; when the inertia counterweight ring rotates relative to the hollow shaft body, the conversion inflation structure can input compressed gas into the compressed air chamber; when the gas pressure in the compressed air chamber reaches a certain threshold, the compressed air chamber will input the gas into the transverse air path through the continuous pressure relief structure, and the continuous pressure relief structure can automatically reduce the closing pressure after the pressure relief is opened. A uniformly distributed annular cavity is opened inside the hollow shaft body, and the uniformly distributed annular cavity is connected to the transverse air path. The uniformly distributed annular cavity is penetrated outwardly with oblique jet holes. When the bearing is installed on the bearing mounting part, the jet port of the oblique jet hole faces the ball position of the bearing.

[0005] The conversion inflation structure includes a worm ring body and a worm gear. The worm ring body is coaxially fixedly installed with the inertia counterweight ring. The worm ring body and the worm gear are meshed with each other. When the inertia counterweight ring rotates, the worm gear can be driven to rotate. An eccentric shift shaft is fixedly arranged on the surface of the worm gear.

[0006] A reciprocating plate is arranged inside the hollow shaft body, a vertical slot for a shift shaft is opened on the reciprocating plate, the eccentric shift shaft is inserted in the vertical slot for a shift shaft, and side balls are arranged outside the reciprocating plate, the side balls can reduce the friction force during the axial movement of the reciprocating plate, and when the worm wheel rotates, it can drive the reciprocating plate to move axially.

[0007] A driving arm is fixedly provided on the reciprocating plate, a first rotating shaft is fixedly provided on the driving arm, a first swing shaft is provided on an outer swing sleeve of the first rotating shaft, a lever sleeve is coaxially provided on the first swing shaft, and a second swing shaft is inserted at the other end of the lever sleeve.

[0008] A second rotating shaft is arranged inside the second swing shaft, and the second swing shaft can swing around the second rotating shaft. A driven support arm is fixedly arranged outside the second rotating shaft. A fulcrum shaft is inserted into the inside of the lever sleeve. The distance from the fulcrum shaft to the second rotating shaft is smaller than the distance from the fulcrum shaft to the first rotating shaft. The driven support arm is limitedly installed, and when the driving support arm reciprocates along the axial direction of the hollow shaft body, it can drive the driven support arm to reciprocate along the axial direction of the hollow shaft body.

[0009] A piston cavity is provided inside the hollow shaft body, a reciprocating piston is arranged in the piston cavity, the reciprocating piston is in airtight contact with the piston cavity, the driven arm is fixedly installed with the reciprocating piston, a bridge pipe is provided in the compressed air chamber, a filter trough is provided on the surface of the hollow shaft body, the piston cavity is connected with the filter trough through the bridge pipe, and filter cotton is provided inside the filter trough.

[0010] A first one-way valve is arranged on the bridge pipeline, and a second one-way valve is embedded and installed inside the hollow shaft body. The first one-way valve allows the gas to flow from the filter trough to the piston chamber in one direction. The piston chamber is connected to the compressed air chamber through the second one-way valve. The second one-way valve allows the gas to flow from the piston chamber to the compressed air chamber in one direction.

[0011] The continuous pressure relief structure includes a pressure relief hole and a sealing air plug. The pressure relief hole is opened at the end position of the compressed air chamber. The compressed air chamber is connected with the horizontal air path through the pressure relief hole. A sealing air plug is arranged in the pressure relief hole. The sealing air plug is in airtight contact with the pressure relief hole. An air plug connecting rod is fixed on the sealing air plug.

[0012] A magnetic suction cup is fixedly provided at the end of the air plug connecting rod, a supporting vertical plate is fixedly provided inside the compression air chamber, a limiting cover is fixedly provided on the supporting vertical plate, a permanent magnet is fixedly provided inside the limiting cover, the permanent magnet and the magnetic suction cup can cooperate with each other by magnetic attraction, and the magnetic suction cup applies axial pulling force to the sealing air plug through the air plug connecting rod under the magnetic attraction of the permanent magnet, so that the sealing air plug seals the pressure relief hole airtightly.

[0013] A rotor keyway is provided on the surface of the hollow shaft body, the length direction of the rotor keyway is parallel to the axial direction of the hollow shaft body, a transmission keyway is provided inside the tapered cavity, and a contact ball is provided between the annular inner cavity and the inertia counterweight ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The direct-connected integrated hollow shaft motor mechanism of the present invention cooperates with the conversion inflation structure through the inertial counterweight ring and the conversion inflation structure when the motor is started or stopped. The inertial counterweight ring and the hollow shaft body are relatively rotated to drive the conversion inflation structure to inflate the compressed air chamber, and the compressed air flow is autonomously generated to regularly clean the bearings on the bearing mounting part, blow away dust and foreign matter in the bearing balls, and improve the matching bearing performance of the hollow shaft.

[0015] The continuous pressure relief structure of the present invention can automatically reduce the closing pressure of the sealing air plug after the pressure relief is started, so that the internal pressure of the compressed air chamber is lower than the pressure of the pressure relief valve with a traditional spring structure after the pressure relief, and the compressed gas in the compressed air chamber can be more fully discharged at this time, thereby improving the utilization rate of the compressed air flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the overall structure of the present invention from another angle.

[0018] Figure 3 It is a three-dimensional half-section schematic diagram of the present invention.

[0019] Figure 4 for Figure 3 A magnified schematic diagram of area A in the middle.

[0020] Figure 5 for Figure 3 Enlarged schematic diagram of area B in the middle.

[0021] Figure 6 It is a three-dimensional half-section front view of the present invention.

[0022] Figure 7 for Figure 6 Enlarged schematic diagram of area C in the middle.

[0023] In the figure: 1, hollow shaft body; 2, bearing mounting portion; 3, tapered cavity; 4, annular inner cavity; 5, inertial counterweight ring; 6, compressed air chamber; 7, transverse air passage; 8, uniformly distributed annular cavity; 9, oblique jet hole; 501, worm ring body; 502, worm wheel; 503, eccentric shifting shaft; 504, reciprocating plate; 505, shifting shaft vertical groove; 506, side ball; 507, driving arm; 508, first rotating shaft; 509, first swing shaft; 510, lever sleeve; 511, second swing shaft; 512, first Second rotating shaft; 513, driven support arm; 514, fulcrum shaft; 515, piston chamber; 516, reciprocating piston; 517, bridge pipe; 518, filter trough; 519, filter cotton; 520, first one-way valve; 521, second one-way valve; 601, pressure relief hole; 602, sealing air plug; 603, air plug connecting rod; 604, magnetic suction cup; 605, supporting vertical plate; 606, limit cover; 607, permanent magnet; 101, rotor keyway; 301, transmission keyway; 401, contact ball. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figures 1 to 7 The present invention provides a technical solution: a direct-connected integrated hollow shaft motor mechanism, such as Figure 3 As shown in the figure, it includes a hollow shaft body 1 and a bearing mounting portion 2 opened on the hollow shaft body 1, the bearing mounting portion 2 is used to install the bearing, a tapered cavity 3 is opened at the end of the hollow shaft body 1, an annular inner cavity 4 is opened inside the hollow shaft body 1, an inertia counterweight ring 5 is arranged in the annular inner cavity 4, the inertia counterweight ring 5 is coaxially arranged with the hollow shaft body 1, and the inertia counterweight ring 5 can rotate relative to the hollow shaft body 1, a compressed air chamber 6 and a transverse air path 7 are opened inside the hollow shaft body 1, and the compressed air chamber 6 is an annular closed cavity.

[0026] The interior of the hollow shaft body 1 is provided with a conversion inflation structure and a continuous pressure relief structure; when the inertial counterweight ring 5 rotates relative to the hollow shaft body 1, the conversion inflation structure can input compressed gas into the compressed air chamber 6; when the gas pressure in the compressed air chamber 6 reaches a certain threshold, the compressed air chamber 6 will input the gas into the transverse air path 7 through the continuous pressure relief structure, and the continuous pressure relief structure can automatically reduce the closing pressure after the pressure relief is turned on. The interior of the hollow shaft body 1 is provided with a uniformly distributed annular cavity 8, which is connected to the transverse air path 7, and the uniformly distributed annular cavity 8 is provided with an oblique jet hole 9 extending outward. When the bearing is installed on the bearing mounting part 2, the jet port of the oblique jet hole 9 faces the ball position of the bearing. Since there is a structure inside the hollow shaft body 1 and various cavities are provided, the hollow shaft body 1 and its internal structure can be dynamically balanced and calibrated later to improve the rotational stability of the hollow shaft body 1.

[0027] The conversion inflatable structure includes a worm ring body 501 and a worm wheel 502. The worm ring body 501 is coaxially fixedly installed with the inertia counterweight ring 5. The worm ring body 501 and the worm wheel 502 are meshed with each other. When the inertia counterweight ring 5 rotates, the worm wheel 502 can be driven to rotate. The worm ring body 501 is a tubular structure with a worm thread on the outer surface. When the worm ring body 501 rotates, the worm thread and the worm wheel 502 are meshed with each other, so the worm wheel 502 can be driven to rotate. The principle is the same as that of a traditional worm gear. Figure 4 as shown in .

[0028] An eccentric shifting shaft 503 is fixedly arranged on the surface of the worm wheel 502. A reciprocating plate 504 is arranged inside the hollow shaft body 1. A shifting shaft vertical groove 505 is provided on the reciprocating plate 504. The eccentric shifting shaft 503 is inserted into the shifting shaft vertical groove 505. Side balls 506 are arranged outside the reciprocating plate 504. The side balls 506 can reduce the friction force when the reciprocating plate 504 moves axially. When the worm wheel 502 rotates, it can drive the reciprocating plate 504 to reciprocate axially.

[0029] A driving arm 507 is fixedly provided on the reciprocating plate 504, a first rotating shaft 508 is fixedly provided on the driving arm 507, a first swing shaft 509 is swingably sleeved on the outside of the first rotating shaft 508, a lever sleeve 510 is coaxially sleeved on the first swing shaft 509, and a second swing shaft 511 is inserted at the other end of the lever sleeve 510. A second rotating shaft 512 is provided inside the second swing shaft 511, and the second swing shaft 511 can swing around the second rotating shaft 512 as the center, a driven arm 513 is fixedly provided outside the second rotating shaft 512, a fulcrum shaft 514 is inserted inside the lever sleeve 510, the distance from the fulcrum shaft 514 to the second rotating shaft 512 is smaller than the distance from the fulcrum shaft 514 to the first rotating shaft 508, and the driven arm 513 is limitedly installed, and when the driving arm 507 reciprocates along the axial direction of the hollow shaft body 1, it can drive the driven arm 513 to reciprocate along the axial direction of the hollow shaft body 1.

[0030] A piston chamber 515 is provided inside the hollow shaft body 1, and a reciprocating piston 516 is arranged in the piston chamber 515. The reciprocating piston 516 is in airtight contact with the piston chamber 515, and the driven arm 513 is fixedly installed with the reciprocating piston 516. A bridge pipe 517 is provided in the compression air chamber 6. A filter trough 518 is provided on the surface of the hollow shaft body 1. The piston chamber 515 is connected to the filter trough 518 through the bridge pipe 517, and a filter cotton 519 is arranged inside the filter trough 518.

[0031] A first one-way valve 520 is provided on the bridge pipe 517, and a second one-way valve 521 is embedded in the interior of the hollow shaft body 1. The first one-way valve 520 allows the gas to flow from the filter trough 518 to the piston chamber 515 in one direction. The piston chamber 515 is connected to the compressed air chamber 6 through the second one-way valve 521. The second one-way valve 521 allows the gas to flow from the piston chamber 515 to the compressed air chamber 6 in one direction.

[0032] The continuous pressure relief structure includes a pressure relief hole 601 and a sealing air plug 602. The pressure relief hole 601 is opened at the end position of the compressed air chamber 6. The compressed air chamber 6 is connected with the horizontal air path 7 through the pressure relief hole 601. A sealing air plug 602 is arranged in the pressure relief hole 601. The sealing air plug 602 is in air-tight contact with the pressure relief hole 601. An air plug connecting rod 603 is fixed on the sealing air plug 602. A magnetic sucker 604 is fixedly provided at the end of the gas plug connecting rod 603, a support vertical plate 605 is fixedly provided inside the compression gas chamber 6, a limit cover 606 is fixedly provided on the support vertical plate 605, a permanent magnet 607 is fixedly provided inside the limit cover 606, the permanent magnet 607 and the magnetic sucker 604 can cooperate with each other by magnetic attraction, and the magnetic sucker 604 applies axial tension to the plugging gas plug 602 through the gas plug connecting rod 603 under the magnetic attraction of the permanent magnet 607, so that the plugging gas plug 602 hermetically closes the pressure relief hole 601. The permanent magnet 607 uses a strong magnetic magnet to ensure sufficient magnetic attraction, and at the same time can reduce the cross-sectional diameter of the plugging gas plug 602, thereby reducing the pressure action area of ​​the air pressure, and ensuring that the pressure threshold of the pressure relief is high enough.

[0033] A rotor keyway 101 is provided on the surface of the hollow shaft body 1 , and the length direction of the rotor keyway 101 is parallel to the axial direction of the hollow shaft body 1 . A transmission keyway 301 is provided inside the tapered cavity 3 , and a contact ball 401 is provided between the annular inner cavity 4 and the inertia counterweight ring 5 .

[0034] When the direct-connected integrated hollow shaft motor mechanism of the present invention is in use, the motor rotor is fixed on the hollow shaft body 1 through the rotor keyway 101, and the bearing is installed on the bearing mounting part 2, and is installed by limiting the bearing and the motor housing; the diameter of the end of the hollow shaft body 1 away from the bearing mounting part 2 is larger, so the bearing volume is larger, the larger the bearing volume, the longer the service life, and it does not need to be cleaned, or an inclined jet hole 9 and other structures are set in the same way as the bearing at the bearing mounting part 2, which will not be repeated in this application.

[0035] like Figure 3 As shown in , when the hollow shaft body 1 starts to rotate from a stationary state, the inertia counterweight ring 5 will rotate relative to the hollow shaft body 1 due to inertia; as time goes on, the inertia counterweight ring 5 gradually rotates with the hollow shaft body 1; and after the hollow shaft body 1 suddenly stops, the inertia counterweight ring 5 will also continue to rotate for a certain period of time due to inertia.

[0036] like Figure 4 As shown in , when the inertial counterweight ring 5 rotates relative to the hollow shaft body 1, the inertial counterweight ring 5 can drive the worm wheel 502 to rotate through the worm ring body 501. The worm wheel and worm matching structure is between the worm ring body 501 and the worm wheel 502, which can initially amplify the torque; when the worm wheel 502 rotates, the eccentric shifting shaft 503 and the shifting shaft vertical groove 505 can be matched to shift the reciprocating plate 504 to move back and forth. The reciprocating plate 504 drives the driving arm 507 to move back and forth, as shown in FIG. Figure 7 As shown in , according to the lever principle, the driven arm 513 is driven to reciprocate with a greater force, and the torque is amplified again.

[0037] At this time, the reciprocating piston 516 is driven to do reciprocating motion. When the reciprocating piston 516 moves to the right, gas is sucked in through the bridge pipe 517; when the reciprocating piston 516 moves to the left, gas is input into the compressed air chamber 6 through the second one-way valve 521, so that the gas pressure in the compressed air chamber 6 gradually increases.

[0038] like Figure 5 As shown in the figure, the magnetic suction cup 604 and the permanent magnet 607 cooperate with each other by magnetic attraction. At this time, the sealing gas plug 602 closes the pressure relief hole 601. As the air pressure in the compressed air chamber 6 increases, the gas pressure acting on the end face of the sealing gas plug 602 gradually increases. When the gas pressure is greater than the magnetic attraction force between the magnetic suction cup 604 and the permanent magnet 607, the magnetic suction cup 604 and the permanent magnet 607 separate. When the magnetic suction cup 604 and the permanent magnet 607 separate and move, the magnetic force is greatly reduced as the distance increases. At this time, the magnetic attraction pulling force driving the sealing gas plug 602 to close is greatly reduced, thereby ensuring that the compressed air chamber 6 continues to relieve pressure for a period of time; while in the spring pressure relief valve structure in the traditional technology, when the valve is pushed open, the spring is compressed, the pressure driving the valve to close will also increase, a very small part of the air pressure is released, and it will automatically close after the pressure is slightly reduced, which is difficult to adapt to the working conditions in the present application.

[0039] The airflow enters the transverse air passage 7 through the pressure relief hole 601, and is ejected from the oblique jet holes 9 through the uniformly distributed annular cavity 8 to clean the bearing mounted on the bearing mounting portion 2. The airflow blows through the balls of the bearings and can take away the dust on the surface of the balls.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A direct-connected integrated hollow shaft motor mechanism, comprising a hollow shaft body (1) and a bearing mounting portion (2) provided on the hollow shaft body (1), wherein the bearing mounting portion (2) is used to mount a bearing, and a tapered cavity (3) is provided at the end of the hollow shaft body (1), characterized in that: The hollow shaft body (1) has an annular inner cavity (4) formed therein, an inertia counterweight ring (5) being arranged in the annular inner cavity (4), the inertia counterweight ring (5) being arranged coaxially with the hollow shaft body (1), and the inertia counterweight ring (5) being capable of rotating relative to the hollow shaft body (1), the hollow shaft body (1) having a compressed air chamber (6) and a transverse air passage (7) formed therein, and the hollow shaft body (1) having a conversion inflation structure and a continuous pressure relief structure arranged therein; when the inertia counterweight ring (5) rotates relative to the hollow shaft body (1), the conversion inflation structure is capable of injecting gas into the compressed air chamber (6) Input compressed gas; when the gas pressure in the compressed air chamber (6) reaches a certain threshold, the compressed air chamber (6) will input the gas into the transverse air path (7) through a continuous pressure relief structure, and the continuous pressure relief structure can automatically reduce the closing pressure after the pressure relief is opened. The hollow shaft body (1) is provided with a uniformly distributed annular cavity (8), and the uniformly distributed annular cavity (8) is connected to the transverse air path (7). The uniformly distributed annular cavity (8) is provided with an oblique jet hole (9) extending outward. When the bearing is installed on the bearing mounting portion (2), the jet port of the oblique jet hole (9) faces the ball position of the bearing.

2. The direct-connected integrated hollow shaft motor mechanism according to claim 1, characterized in that: The conversion inflation structure comprises a worm ring body (501) and a worm wheel disc (502); the worm ring body (501) is coaxially fixedly installed with the inertia counterweight ring (5); the worm ring body (501) and the worm wheel disc (502) are meshed with each other; when the inertia counterweight ring (5) rotates, the worm wheel disc (502) can be driven to rotate; an eccentric shifting shaft (503) is fixedly arranged on the surface of the worm wheel disc (502).

3. The direct-connected integrated hollow shaft motor mechanism according to claim 2, characterized in that: A reciprocating plate (504) is arranged inside the hollow shaft body (1), a shifting shaft vertical groove (505) is provided on the reciprocating plate (504), the eccentric shifting shaft (503) is inserted into the shifting shaft vertical groove (505), and side balls (506) are arranged outside the reciprocating plate (504), the side balls (506) can reduce the friction force of the reciprocating plate (504) when the reciprocating plate (504) moves axially, and when the worm wheel (502) rotates, it can drive the reciprocating plate (504) to move axially.

4. The direct-connected integrated hollow shaft motor mechanism according to claim 3, characterized in that: A driving arm (507) is fixedly provided on the reciprocating plate (504), a first rotating shaft (508) is fixedly provided on the driving arm (507), a first swing shaft (509) is swingably sleeved outside the first rotating shaft (508), a lever sleeve (510) is coaxially sleeved on the first swing shaft (509), and a second swing shaft (511) is inserted into the other end of the lever sleeve (510).

5. The direct-connected integrated hollow shaft motor mechanism according to claim 4, characterized in that: A second rotating shaft (512) is arranged inside the second swing shaft (511), and the second swing shaft (511) can swing around the second rotating shaft (512). A driven support arm (513) is fixedly arranged outside the second rotating shaft (512). A fulcrum shaft (514) is inserted inside the lever sleeve (510), and the distance from the fulcrum shaft (514) to the second rotating shaft (512) is smaller than the distance from the fulcrum shaft (514) to the first rotating shaft (508). The driven support arm (513) is installed in a limited position, and when the driving support arm (507) reciprocates along the axial direction of the hollow shaft body (1), it can drive the driven support arm (513) to reciprocate along the axial direction of the hollow shaft body (1).

6. The direct-connected integrated hollow shaft motor mechanism according to claim 5, characterized in that: A piston chamber (515) is provided inside the hollow shaft body (1), a reciprocating piston (516) is arranged in the piston chamber (515), the reciprocating piston (516) is in airtight contact with the piston chamber (515), the driven arm (513) is fixedly mounted on the reciprocating piston (516), a bridge pipe (517) is provided in the compressed air chamber (6), a filtering trough (518) is provided on the surface of the hollow shaft body (1), the piston chamber (515) is in communication with the filtering trough (518) via the bridge pipe (517), and a filter cotton (519) is arranged inside the filtering trough (518).

7. The direct-connected integrated hollow shaft motor mechanism according to claim 6, characterized in that: The bridge pipe (517) is provided with a first one-way valve (520), and a second one-way valve (521) is embedded in the hollow shaft (1). The first one-way valve (520) allows gas to flow from the filter trough (518) to the piston chamber (515) in one direction. The piston chamber (515) is connected to the compressed air chamber (6) through the second one-way valve (521). The second one-way valve (521) allows gas to flow from the piston chamber (515) to the compressed air chamber (6) in one direction.

8. The direct-connected integrated hollow shaft motor mechanism according to claim 1, characterized in that: The continuous pressure relief structure comprises a pressure relief hole (601) and a sealing gas plug (602); the pressure relief hole (601) is provided at the end position of the compressed air chamber (6); the compressed air chamber (6) is connected to the transverse air passage (7) through the pressure relief hole (601); a sealing gas plug (602) is provided in the pressure relief hole (601); the sealing gas plug (602) is in airtight contact with the pressure relief hole (601); and a gas plug connecting rod (603) is fixedly provided on the sealing gas plug (602).

9. The direct-connected integrated hollow shaft motor mechanism according to claim 8, characterized in that: A magnetic suction cup (604) is fixedly provided at the end of the gas plug connecting rod (603), a supporting upright plate (605) is fixedly provided inside the compression gas chamber (6), a limiting cover (606) is fixedly provided on the supporting upright plate (605), a permanent magnet (607) is fixedly provided inside the limiting cover (606), the permanent magnet (607) and the magnetic suction cup (604) can cooperate with each other by magnetic attraction, and the magnetic suction cup (604) applies an axial pulling force to the sealing gas plug (602) through the gas plug connecting rod (603) under the magnetic attraction of the permanent magnet (607), so that the sealing gas plug (602) hermetically closes the pressure relief hole (601).

10. The direct-connected integrated hollow shaft motor mechanism according to claim 1, characterized in that: A rotor keyway (101) is provided on the surface of the hollow shaft body (1), the length direction of the rotor keyway (101) is parallel to the axial direction of the hollow shaft body (1), a transmission keyway (301) is provided inside the tapered cavity (3), and a contact ball (401) is provided between the annular inner cavity (4) and the inertia counterweight ring (5).

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