A driving motor device

Abstract

The present invention relates to the field of motor technology, and discloses a driving motor device, including a mounting assembly, a power shaft assembly and a motor part; the mounting assembly includes a mounting sleeve with a mounting channel, the inner wall of the mounting channel is provided with an angular contact ball bearing and a rotary oil seal, and the mounting sleeve is fixedly connected to the motor part; the power shaft assembly passes through the mounting channel, and the outer surface is rotatably connected with the angular contact ball bearing and the rotary oil seal, the outer cylindrical surface of the power shaft assembly corresponding to the rotary oil seal is provided with a ceramic coating, and the power shaft assembly is connected to the output end of the motor; the inner wall of the mounting channel is provided with a receiving groove at the edge of the opening, and the power shaft assembly at least partially covers the notch of the receiving groove and forms an annular space with the rotary oil seal. The driving motor device reduces the wear between the rotary oil seal and the shaft body, improves the sealing effect, effectively increases the service life of the angular contact ball bearing and the shaft body, and thus reduces the use cost.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a driving motor device. Background Art

[0002] A motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. In precision control and industrial production, the key role of the drive motor is to improve production efficiency, especially in situations where greater torque is required. Since the cost of directly increasing the motor torque is high, the torque is usually enhanced by adding an external reducer or worm gear or other transmission structure in conjunction with the shaft that transmits power to meet production needs.

[0003] The shaft that drives the motor to transmit power consists of a sleeve, a shaft, and an angular contact ball bearing. During liquid recovery and stirring operations, the shaft that transmits power inevitably comes into contact with the liquid, which poses a challenge to the durability of the equipment. The shaft is supported and operated by angular contact ball bearings, but liquid infiltration into the angular contact ball bearings can cause corrosion and damage, seriously affecting equipment performance. Currently, rotary oil seals are widely used to seal bearings and rotating shafts to prevent liquid intrusion. However, long-term friction between the rotary oil seal and the rotating shaft leads to increased temperature and increased wear, which not only weakens the sealing effect, but also shortens the service life of the rotating shaft. When used in a liquid scenario, it is further likely to affect the service life of the angular contact ball bearing, increasing the use cost of the rotating shaft and the angular contact ball bearing. Summary of the invention

[0004] The purpose of the present invention is to provide a driving motor device, which reduces the wear between the rotating oil seal and the rotating shaft, improves the sealing effect, effectively increases the service life of the angular contact ball bearing and the rotating shaft, and thus reduces the cost of use.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] Design a drive motor device, including a mounting assembly, a power shaft assembly and a motor component;

[0007] The mounting assembly comprises a mounting sleeve with a mounting channel, an inner wall of the mounting channel is provided with an angular contact ball bearing and a rotary oil seal, and the mounting sleeve is fixedly connected to the motor component;

[0008] The power shaft assembly passes through the installation channel, and the outer surface is rotatably connected to the angular contact ball bearing and the rotary oil seal. The outer cylindrical surface of the power shaft assembly corresponding to the rotary oil seal is provided with a ceramic coating, and the power shaft assembly is connected to the output end of the motor component;

[0009] The inner wall of the installation channel is provided with a receiving groove at the edge of the opening, the power shaft assembly at least partially covers the notch of the receiving groove and forms an annular space with the rotary oil seal, and the inner wall of the receiving groove is provided with an oil leakage hole communicating with the annular space;

[0010] It also includes a driven component, which is detachably connected to the end of the power shaft component close to the receiving groove and is used for driven rotation;

[0011] It also includes a heat dissipation component, which is used to dissipate heat from the power shaft component.

[0012] Optionally, the heat dissipation assembly includes an air intake mechanism and a heat dissipation channel opened on the power shaft assembly, the air intake mechanism is arranged on the mounting sleeve, one end of which is connected to the air source, and the other end is interconnected with the input end of the heat dissipation channel, and the output end of the heat dissipation channel is opened on the surface of the power shaft assembly outside the receiving groove, and is inclined along the axis of the power shaft assembly.

[0013] Optionally, the air intake mechanism includes an air intake pipe and an air intake sleeve, the air intake pipe is arranged on the mounting sleeve, one end of the air intake pipe is connected to the air source, and the other end is fixedly connected to the air intake sleeve, the air intake sleeve is fixedly connected to the inner wall of the mounting channel and is sealingly and rotatably connected to the power shaft assembly, the inner wall of the air intake sleeve is provided with a plurality of air holes connected to the air intake pipe, and the air intake pipe is connected to the input end of the heat dissipation channel through the plurality of air holes.

[0014] Optionally, the heat dissipation assembly also includes a locking mechanism, which includes a locking ball and a reset piece. The locking ball is slidably connected in the heat dissipation channel, and the surface of the power shaft assembly is slidably connected to the locking ball through a slot so that the locking ball at least partially extends out of the heat dissipation channel. The reset piece is arranged in the heat dissipation channel and connected to the locking ball to apply traction force to the locking ball so that the locking ball is located in the heat dissipation channel.

[0015] Optionally, the heat dissipation channel includes a first channel and a second channel, the first channel and the second channel are connected via a bypass port, the locking ball is slidably connected in the second channel, and the air intake pipe is connected to the first channel.

[0016] Optionally, the reset member includes a vertical rod and a reset spring, one end of the vertical rod is fixedly connected to the surface of the locking ball in the heat dissipation channel, and the other end of the vertical rod shields the avoidance opening. The reset spring is sleeved on the outer surface of the vertical rod with one end abutting against the vertical rod shielding the avoidance opening, and the other end abutting against the inner wall of the second channel.

[0017] Optionally, the driven component includes a cutting bit, a fastening collet and a locking nut, the end face of the power shaft assembly is provided with a splicing groove, the cutting bit is slidably connected in the splicing groove, the fastening collet is slidably connected in the splicing groove and is sleeved on the outer surface of the cutting bit, and the end face of the locking nut is sleeved on the outer surface of the fastening collet through the opened hole and is threadedly connected to the end of the power shaft assembly.

[0018] Optionally, a locking groove is formed on the inner wall of the locking nut corresponding to the locking ball, and the locking groove is arranged in a ring shape on the inner wall of the locking nut.

[0019] Optionally, it also includes a trigger assembly, which includes a trigger ring, a damping bearing and a blocking valve. The power shaft assembly includes a power shaft body. The trigger ring is mounted on the surface of the power shaft body through a damping bearing. The inner wall of the mounting channel is rotatably connected to the trigger ring through a groove. A first contact is provided on the trigger ring. A second contact is provided on the groove wall of the mounting channel corresponding to the first contact. The blocking valve is arranged in the intake pipe.

[0020] Optionally, a control component is also included, which includes a control module and a driver, the first contact and the second contact are electrically connected to the input end of the control module, the output end of the control module is electrically connected to the input end of the driver, and the output end of the driver is electrically connected to the blocking valve.

[0021] The present invention provides a driving motor device, which has the following beneficial effects:

[0022] The driving motor device installs the power shaft assembly through the installation channel, and the angular contact ball bearing supports the power shaft assembly to be driven to rotate in the installation sleeve. The power shaft assembly is driven to rotate in the installation sleeve to drive the installed driven assembly to rotate. The connection and sealing between the rotary oil seal and the power shaft assembly, combined with the shielding and receiving groove of the power shaft assembly, play a preliminary blocking protection, cooperate with the secondary sealing and blocking of the rotary oil seal to prevent liquid from entering the angular contact ball bearing part during the use of the driven assembly. When the liquid accidentally enters the receiving groove, it can be discharged through the oil leakage hole, which plays a further protective role. At the same time, the ceramic coating set on the surface of the power shaft assembly can reduce the contact heat generated by the rotary oil seal during the rotation of the power shaft assembly. The heat dissipation assembly dissipates heat from the power shaft assembly to avoid wear caused by heat of the power shaft assembly, which greatly improves the service life of the power shaft assembly, ensures that the liquid will not enter the angular contact ball bearing due to wear of the power shaft assembly, thereby improving the service life of the angular contact ball bearing. During long-term use, the high-precision stability and service life of the power shaft assembly transmission are effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the driving motor device in the present invention;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the installation assembly in the present invention;

[0025] Figure 3 It is a side view structural schematic diagram of the installation assembly in the present invention;

[0026] Figure 4 It is a cross-sectional structural schematic diagram of the installation assembly in the present invention;

[0027] Figure 5 It is a cross-sectional structural schematic diagram of the trigger component in the present invention;

[0028] Figure 6 For the present invention Figure 4 A is an enlarged structural diagram of FIG.

[0029] In the figure: 100, mounting assembly; 110, mounting sleeve; 120, angular contact ball bearing; 130, rotary oil seal; 140, mounting channel; 150, receiving groove; 160, oil leakage hole; 200, power shaft assembly; 210, ceramic coating; 220, power shaft body; 300, driven assembly; 310, cutting bit; 320, fastening collet; 330, locking nut; 340, locking groove; 400, heat dissipation assembly ; 410, air intake mechanism; 411, air intake pipe; 412, air intake sleeve; 420, heat dissipation channel; 421, first channel; 422, second channel; 423, avoidance port; 430, locking mechanism; 431, locking ball; 432, reset member; 4321, vertical rod; 4322, reset spring; 500, trigger assembly; 510, trigger ring; 520, damping bearing; 530, blocking valve; 600, motor parts. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. All other embodiments obtained by ordinary technicians in the field without making creative work based on the embodiments of the present invention shall fall within the scope of protection of the present invention.

[0031] See also Figures 1 to 6 , the present invention provides a technical solution: a driving motor device, including a mounting assembly 100, a power shaft assembly 200 and a motor component 600;

[0032] The mounting assembly 100 includes a mounting sleeve 110 having a mounting channel 140, an inner wall of the mounting channel 140 is provided with an angular contact ball bearing 120 and a rotary oil seal 130, and the mounting sleeve 110 is fixedly connected to the motor component 600;

[0033] The power shaft assembly 200 passes through the installation channel 140, and the outer surface is rotatably connected to the angular contact ball bearing 120 and the rotary oil seal 130. The outer circumferential surface of the power shaft assembly 200 corresponding to the rotary oil seal 130 is provided with a ceramic coating 210. The power shaft assembly 200 is connected to the output end of the motor component 600.

[0034] The inner wall of the installation channel 140 is provided with a receiving groove 150 at the edge of the opening, the power shaft assembly 200 at least partially covers the notch of the receiving groove 150 and forms an annular space with the rotary oil seal 130, and the inner wall of the receiving groove 150 is provided with an oil leakage hole 160 communicating with the annular space;

[0035] It also includes a driven component 300, which is detachably connected to the end of the power shaft component 200 near the receiving groove 150 for being driven to rotate;

[0036] It also includes a heat dissipation assembly 400, which is used to dissipate heat from the power shaft assembly 200;

[0037] The installation sleeve 110 provides a fixed and stable installation interface, so that the power shaft assembly 200 can smoothly penetrate it. The power shaft assembly 200 is supported by the angular contact ball bearing 120 to bear radial and axial loads to ensure its smooth and efficient rotation. The rotary oil seal 130 is sealed and rotatably connected with the outer surface of the power shaft assembly 200 to provide a sealing function to prevent liquid from entering the angular contact ball bearing 120 area and protect the bearing from contamination and damage. The power shaft assembly 200 is used to be driven to provide rotational power to drive the objects installed on the power shaft assembly 200 to rotate. One end of the power shaft assembly 200 is installed with an object that needs to be rotated, which can be a stirring rod, a transmission rod of a dispersing device, or a tool for lathe cutting;

[0038] The other end of the power shaft assembly 200 is connected to the output end of the motor component 600 through a gear transmission group, or can be connected to the output end of the motor component 600 through a worm gear transmission assembly, that is, the output end of the motor component 600 is connected to the worm, and one end of the power shaft assembly 200 is connected to the turbine. The gear transmission group and the worm gear transmission assembly are both existing well-known technologies and are only used for reference. The anti-torsion rotation force of the power shaft assembly 200 is increased by the gear transmission group or the worm gear transmission assembly;

[0039] The mounting sleeve 110 is fixedly connected to the end surface of the motor component 600 by bolts, providing a support position for the power shaft assembly 200, and can be disassembled for easy replacement. During this process, the output end of the motor component 600, that is, the output shaft, is in a sealed state and is only connected to the power shaft assembly 200 through the transmission assembly, which can prevent liquid from entering, and at the same time increase the torsional rotation force of the power shaft assembly 200 through the transmission assembly;

[0040] The outer circumferential surface of the power shaft assembly 200 corresponding to the rotating oil seal 130 is provided with a ceramic coating 210 to reduce the friction between the power shaft assembly 200 and the rotating oil seal 130, reduce heat generation, prevent overheating and wear, and extend the service life of the power shaft assembly 200 and the rotating oil seal 130. The power shaft assembly 200 is located at the opening edge of the inner wall of the installation channel 140. The power shaft assembly 200 at least partially covers the notch of the receiving groove 150 and forms an annular space with the rotating oil seal 130, providing a preliminary protective barrier to prevent liquid from entering the angular contact ball bearing 12 0 area, forming a sealed space with the rotating oil seal 130 to further block the liquid. When the liquid accidentally enters the containing groove 150, it is discharged through the oil leakage hole 160 to prevent the liquid from accumulating, further protecting the angular contact ball bearing 120. The rotation of the power shaft assembly 200 drives the driven assembly 300 to perform cutting operations. The detachable connection facilitates the replacement of the stirring rod or the tool and improves the work efficiency. The heat dissipation assembly 400 takes away the heat generated by the power shaft assembly 200 during the high-speed rotation to prevent overheating and avoid wear and performance degradation caused by temperature rise.

[0041] In this embodiment, as a preferred solution, the heat dissipation assembly 400 includes an air intake mechanism 410 and a heat dissipation channel 420 provided on the power shaft assembly 200. The air intake mechanism 410 is provided on the mounting sleeve 110, one end of which is connected to the air source, and the other end is communicated with the input end of the heat dissipation channel 420. The output end of the heat dissipation channel 420 is provided on the surface of the power shaft assembly 200 outside the receiving groove 150, and is provided obliquely along the axis of the power shaft assembly 200.

[0042] One end of the air intake mechanism 410 is connected to the air source, and the other end is interconnected with the input end of the heat dissipation channel 420. By connecting the air source, a stable airflow is provided, so that the cooling gas can continuously flow into the heat dissipation channel 420, and the cooling gas is introduced into the heat dissipation channel 420 to dissipate the power shaft assembly 200. The heat dissipation channel 420 provides a flow path for the cooling gas, so that the gas can effectively take away the heat generated by the power shaft assembly 200. The channel output port inclined along the axis can discharge the gas while the power shaft assembly 200 rotates. As can be seen from the figure, the heat dissipation channel 420 changes from a larger diameter to a smaller diameter when flowing out, which can increase the gas flow rate, contribute to the uniform distribution of the airflow and efficient heat dissipation. At the same time, the high-speed gas is discharged from the heat dissipation channel 420 along the inclined direction, and the gas discharged from the heat dissipation channel 420 continues to flow along the inclined direction. With the rotation of the power shaft assembly 200, an annular air cover can be formed, and the liquid is blown away from the notch of the receiving groove 150 by the gas, so as to further protect the notch of the receiving groove 150 and prevent the liquid from entering, thereby further protecting the receiving groove 150 while dissipating the heat.

[0043] In this embodiment, as a preferred solution, the air intake mechanism 410 includes an air intake pipe 411 and an air intake sleeve 412. The air intake pipe 411 is arranged on the mounting sleeve 110, one end of which is connected to the air source, and the other end is fixedly connected to the air intake sleeve 412. The air intake sleeve 412 is fixedly connected to the inner wall of the mounting channel 140 and is sealed and rotatably connected to the power shaft assembly 200. The inner wall of the air intake sleeve 412 is provided with a plurality of air holes connected to the air intake pipe 411. The air intake pipe 411 is connected to the input end of the heat dissipation channel 420 through the plurality of air holes. The cooling gas is introduced from the gas source into the air intake sleeve 412 through the air intake pipe 411, ensuring that the cooling gas can be continuously and stably supplied to the air intake sleeve 412. The air intake sleeve 412 evenly distributes the cooling gas to the input end of the heat dissipation channel 420 through multiple air holes. The air intake sleeve 412 is sealed and rotatably connected to the power shaft assembly 200, ensuring that the cooling gas does not leak during the transmission process, while allowing the power shaft assembly 200 to rotate freely. The sealing structure is a well-known technology and is only cited here;

[0044] The gas source is also a known technology, and can be an inert gas, or indoor or outdoor air, which enters the air inlet pipe 411 through an air pump.

[0045] In this embodiment, as a preferred solution, the heat dissipation assembly 400 further includes a locking mechanism 430, which includes a locking ball 431 and a reset member 432. The locking ball 431 is slidably connected in the heat dissipation channel 420. The surface of the power shaft assembly 200 is slidably connected to the locking ball 431 through a slot, so that the locking ball 431 at least partially extends out of the heat dissipation channel 420. The reset member 432 is disposed in the heat dissipation channel 420 and connected to the locking ball 431 to apply traction to the locking ball 431 so that the locking ball 431 is located in the heat dissipation channel 420.

[0046] When the power shaft assembly 200 rotates, the locking ball 431 passively slides into the slot and at least partially extends out of the heat dissipation channel 420 to lock and limit the driven component 300. At the same time, the locking ball 431 can be pushed by the airflow in the heat dissipation channel 420, and the locking ball 431 is pushed out by the centrifugal force generated by the rotation of the power shaft assembly 200. The reset member 432 applies traction to the locking ball 431. When the power shaft assembly 200 stops rotating and the air intake stops, that is, the heat dissipation channel 420 no longer passes gas, the locking ball 431 is reset to the heat dissipation channel 420, and the cutting tool assembly or the dispersion and stirring assembly (that is, the driven component 300) can be disassembled.

[0047] In this embodiment, as a preferred solution, the heat dissipation channel 420 includes a first channel 421 and a second channel 422, the first channel 421 and the second channel 422 are connected via a bypass port 423, the locking ball 431 is slidably connected in the second channel 422, the air intake pipe 411 is connected to the first channel 421, the first channel 421 is responsible for introducing cooling gas, the bypass port 423 connects the first channel 421 and the second channel 422, so that the cooling gas can flow smoothly to the second channel 422, taking away the heat generated by the power shaft assembly 200, and at the same time, the gas must pass through the bypass port 423 to enter the second channel 422.

[0048] In this embodiment, as a preferred solution, the reset member 432 includes a vertical rod 4321 and a reset spring 4322. One end of the vertical rod 4321 is fixedly connected to the surface of the locking ball 431 located in the heat dissipation channel 420, and the other end of the vertical rod 4321 shields the avoidance opening 423. The reset spring 4322 is sleeved on the outer surface of the vertical rod 4321, and one end of the reset spring abuts against the shielding avoidance opening 423 of the vertical rod 4321, and the other end abuts against the inner wall of the second channel 422.

[0049] The avoidance opening 423 is shielded by the vertical rod 4321, and the vertical rod 4321 must not block the avoidance opening 423 in order for the gas to enter the second channel 422 from the first channel 421, that is, the gas must be able to exert a certain thrust on the vertical rod 4321 to assist in pushing the locking ball 431 into the second channel 422 to achieve the locking effect. Through the action of the reset spring 4322, when the gas no longer enters the second channel 422 through the first channel 421, that is, when the heat dissipation channel 420 stops ventilating and heat dissipation and the power shaft assembly 200 stops rotating, the vertical rod 4321 is reset and the locking ball 431 is retracted into the second channel 422.

[0050] In this embodiment, as a preferred solution, the driven component 300 includes a cutting bit 310, a fastening collet 320 and a locking nut 330. The end face of the power shaft component 200 is provided with a splicing groove, the cutting bit 310 is slidably connected in the splicing groove, the fastening collet 320 is slidably connected in the splicing groove and sleeved on the outer surface of the cutting bit 310, the end face of the locking nut 330 is sleeved on the outer surface of the fastening collet 320 through the opened hole and is threadedly connected to the end of the power shaft component 200, responsible for the cutting operation, and the sliding connection in the splicing groove ensures that the cutting bit 310 is more convenient to install and replace, and the fastening collet 320 compensates the cutting bit 310. The gap between the splicing groove and the locking nut 330 can tightly clamp the cutting head and prevent it from shifting due to uneven force, providing a stable fixed support to keep the cutting head 310 stable during operation. The locking nut 330 is threadedly connected to the end of the power shaft assembly 200 to fix the fastening collet 320 and the cutting head 310 on the power shaft assembly 200 to ensure that the tool will not loosen during operation. The combination of the cutting head 310, the fastening collet 320 and the locking nut 330 provides a stable and firm fixing structure that can withstand high load and high-speed rotation working conditions and ensure stability during the cutting process.

[0051] In this embodiment, as a preferred solution, a locking groove 340 is provided on the inner wall of the locking nut 330 corresponding to the locking ball 431. The locking groove 340 is arranged in a ring shape on the inner wall of the locking nut 330. The ring-shaped locking groove 340 provides a stable positioning space for the locking ball 431. When the locking ball 431 is extended, it can be extended into the locking groove 340. When the locking nut 330 rotates accidentally, the locking ball 431 cooperates with the locking groove 340 to lock it, so that the locking nut 330 cannot continue to rotate, thereby preventing the locking nut 330 from accidentally falling off.

[0052] In this embodiment, the driven component 300 can also be a rotary centrifugal filter cartridge, that is, a filter cartridge arranged along the extension direction of the power shaft component 200, one end of the filter cartridge is detachably mounted with the power shaft component 200, a plurality of filter holes are provided on the outer surface of the filter cartridge, a filter screen is provided in the filter holes, an input pipe is sleeved on the other end of the filter cartridge, the input pipe inputs waste water into the filter cartridge, the filter cartridge is driven to rotate by the power shaft component 200, centrifugal force is generated, the waste water in the filter cartridge is filtered and discharged, mainly by rotating so that each filter hole of the filter cartridge can contact with the waste water, avoiding clogging of the filter screen when the filter cartridge is stationary. To improve the efficiency of filtration, in this process, a row of nozzles are arranged on the outside of the filter cartridge along the extension direction of the filter cartridge, and the nozzles are used to spray clean water. The clean water is used to flush the outer surface of the filter cartridge to make the dirt on the surface of the filter screen on the filter cartridge fall off, thereby achieving the effect of circulating filtration, so that the filter cartridge can perform continuous circulating filtration work, and avoid clogging of the filter cartridge after a period of use. Continuous filtration and cleaning can be achieved with the nozzles. In this process, the water sprayed by the nozzles can easily enter the angular contact ball bearing 120. The structural setting of the power shaft assembly 200 can protect the angular contact ball bearing 120.

[0053] In this embodiment, as a preferred solution, a trigger assembly 500 is further included, the trigger assembly 500 includes a trigger ring 510, a damping bearing 520 and a blocking valve 530, the power shaft assembly 200 includes a power shaft body 220, the trigger ring 510 is sleeved on the surface of the power shaft body 220 through the damping bearing 520, the inner wall of the installation channel 140 is rotatably connected to the trigger ring 510 through a groove, a first contact is provided on the trigger ring 510, a second contact is provided on the groove wall of the installation channel 140 corresponding to the first contact, and the blocking valve 530 is provided in the intake pipe 411;

[0054] The trigger ring 510 is sleeved on the surface of the power shaft 220 through the damping bearing 520, and is rotatably connected to the inner wall of the installation channel 140 through the groove. The damping bearing 520 provides a certain friction force to ensure that the trigger ring 510 can rotate when the power shaft 220 rotates. When the trigger ring 510 rotates to a specific position, the trigger ring 510 abuts against the inner wall of the installation channel 140 through one end of the groove, and the first contact and the second contact contact to form a circuit closure signal to control the blocking valve 530 to open. At this time, the trigger ring 510 overcomes the friction force provided by the damping bearing 520, and the trigger ring 510 remains stationary. When it stops being used, the power shaft 220 flips over, causing the trigger ring 510 to flip over. When the first contact and the second contact are disconnected, the trigger ring 510 abuts against the inner wall of the installation channel 140 through the other end of the groove, and the blocking valve 530 is closed, thereby reducing manual operation, improving the degree of automation, and further improving the efficiency of continuous processing.

[0055] The blocking valve 530 is a known technology and is only cited here without further description.

[0056] In this embodiment, as a preferred solution, a control component is further included, the control component includes a control module and a driver, the first contact and the second contact are both electrically connected to the input end of the control module, the output end of the control module is electrically connected to the input end of the driver, and the output end of the driver is electrically connected to the blocking valve 530;

[0057] The control module and the driver are both existing well-known technologies and are only referenced here. The purpose is to contact the first contact with the second contact, the control module receives the signal, and drives the blocking valve 530 to open through the driver, and the air enters the first channel 421 through the intake pipe 411. When the first contact is disconnected from the second contact, the blocking valve 530 is closed by the driver, and the air stops entering the first channel 421 through the intake pipe 411.

[0058] 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 driving motor device, characterized in that: It comprises a mounting assembly (100), a power shaft assembly (200) and a motor component (600); The mounting assembly (100) comprises a mounting sleeve (110) having a mounting channel (140), an inner wall of the mounting channel (140) being provided with an angular contact ball bearing (120) and a rotary oil seal (130), and the mounting sleeve (110) being fixedly connected to the motor component (600); The power shaft assembly (200) passes through the installation channel (140), and the outer surface is rotatably connected to the angular contact ball bearing (120) and the rotary oil seal (130); the outer cylindrical surface of the power shaft assembly (200) corresponding to the rotary oil seal (130) is provided with a ceramic coating (210); and the power shaft assembly (200) is connected to the output end of the motor component (600); The inner wall of the installation channel (140) is provided with a receiving groove (150) at the edge of the opening, the power shaft assembly (200) at least partially covers the notch of the receiving groove (150) and forms an annular space with the rotary oil seal (130), and the inner wall of the receiving groove (150) is provided with an oil leakage hole (160) communicating with the annular space; It also includes a driven component (300), wherein the driven component (300) is detachably connected to an end of the power shaft component (200) close to the accommodating groove (150) and is used for being driven to rotate; The invention also comprises a heat dissipation assembly (400), the heat dissipation assembly (400) comprising an air intake mechanism (410) and a heat dissipation channel (420) provided on the power shaft assembly (200), the air intake mechanism (410) being arranged on the mounting sleeve (110), one end of which is connected to an air source, and the other end of which is in communication with an input end of the heat dissipation channel (420), the output end of the heat dissipation channel (420) being provided on a surface of the power shaft assembly (200) outside the receiving groove (150), and being arranged at an angle along the axis of the power shaft assembly (200), for dissipating heat from the power shaft assembly (200).

2. A driving motor device according to claim 1, characterized in that: The air intake mechanism (410) comprises an air intake pipe (411) and an air intake sleeve (412); the air intake pipe (411) is arranged on the mounting sleeve (110), one end of which is connected to an air source, and the other end of which is fixedly connected to the air intake sleeve (412); the air intake sleeve (412) is fixedly connected to the inner wall of the mounting channel (140) and is sealingly rotatably connected to the power shaft assembly (200); a plurality of air holes in communication with the air intake pipe (411) are formed on the inner wall of the air intake sleeve (412); the air intake pipe (411) is connected to the input end of the heat dissipation channel (420) through the plurality of air holes.

3. A driving motor device according to claim 2, characterized in that: The heat dissipation assembly (400) further comprises a locking mechanism (430), wherein the locking mechanism (430) comprises a locking ball (431) and a reset member (432), wherein the locking ball (431) is slidably connected in the heat dissipation channel (420), and the surface of the power shaft assembly (200) is slidably connected to the locking ball (431) via a slot provided therein, so that the locking ball (431) at least partially extends out of the heat dissipation channel (420), and the reset member (432) is disposed in the heat dissipation channel (420) and is connected to the locking ball (431) so as to apply a traction force to the locking ball (431) so that the locking ball (431) is located in the heat dissipation channel (420).

4. A driving motor device according to claim 3, characterized in that: The heat dissipation channel (420) comprises a first channel (421) and a second channel (422); the first channel (421) and the second channel (422) are connected via an escape opening (423); the locking ball (431) is slidably connected in the second channel (422); and the air intake pipe (411) is connected to the first channel (421).

5. A driving motor device according to claim 4, characterized in that: The reset member (432) comprises a vertical rod (4321) and a reset spring (4322); one end of the vertical rod (4321) is fixedly connected to the surface of the locking ball (431) located in the heat dissipation channel (420); the other end of the vertical rod (4321) shields the avoidance opening (423); the reset spring (4322) is sleeved on the outer surface of the vertical rod (4321) and one end of the reset spring abuts against the shielding avoidance opening (423) of the vertical rod (4321), and the other end abuts against the inner wall of the second channel (422).

6. A driving motor device according to claim 3, characterized in that: The driven component (300) comprises a cutting bit (310), a fastening collet (320) and a locking nut (330); a splicing groove is provided on the end surface of the power shaft component (200); the cutting bit (310) is slidably connected in the splicing groove; the fastening collet (320) is slidably connected in the splicing groove and sleeved on the outer surface of the cutting bit (310); the end surface of the locking nut (330) is sleeved on the outer surface of the fastening collet (320) through a hole provided therein and is threadedly connected to the end of the power shaft component (200).

7. A driving motor device according to claim 6, characterized in that: The inner wall of the locking nut (330) is provided with a locking groove (340) corresponding to the locking ball (431), and the locking groove (340) is arranged in an annular shape on the inner wall of the locking nut (330).

8. A driving motor device according to claim 2, characterized in that: The invention also comprises a trigger assembly (500), wherein the trigger assembly (500) comprises a trigger ring (510), a damping bearing (520) and a blocking valve (530); the power shaft assembly (200) comprises a power shaft body (220); the trigger ring (510) is sleeved on the surface of the power shaft body (220) via the damping bearing (520); the inner wall of the mounting channel (140) is rotatably connected to the trigger ring (510) via a groove; a first contact is arranged on the trigger ring (510); a second contact is arranged on the groove wall of the mounting channel (140) corresponding to the first contact; and the blocking valve (530) is arranged in the air intake pipe (411).

9. A driving motor device according to claim 8, characterized in that: It also includes a control component, which includes a control module and a driver, the first contact and the second contact are both electrically connected to the input end of the control module, the output end of the control module is electrically connected to the input end of the driver, and the output end of the driver is electrically connected to the blocking valve (530).

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