Built-in motor sealing device for power tool turret

Abstract

According to the built-in motor sealing device for the power tool turret, the stator, the power main shaft and the coupler are arranged, and under the action that the static sealing block is matched with the output main shaft and the dynamic sealing block is matched with the dynamic sealing ferrule, the installation difficulty of a built-in motor sealing structure of the power tool turret is lowered; the influence of disassembly, assembly and maintenance of the dynamic sealing structure on the built-in motor shaft on the machining precision of the power tool turret is reduced, and the sealing effect of the built-in motor of the power tool turret is improved; by arranging a guide mounting seat, a radial sealing spring, a dynamic sealing block, a static sealing block and an axial sealing spring, the dynamic sealing contact automatic compensation capability of the built-in motor of the power tool turret is improved, and the sealing effect maintaining effect of the sealing structure is improved when the built-in motor shaft of the power tool turret runs at medium and low speeds; and the installation requirement of the sealing structure and the structural performance damage of the sealing structure to motor parts are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of power turrets, in particular to a built-in motor sealing device for a power turret. Background Art

[0002] The power turret is a power turret that integrates turning and milling in mechanical processing. It belongs to a turret used for CNC turning and milling compound machine tools, including a box body, a motor is installed in the box body, the motor includes a motor stator and a motor rotor, the motor stator is fixedly installed on the box body, a hollow spline shaft is fixedly connected in the middle of the motor rotor, one end of the hollow spline shaft is transmission-connected with a clutch, the clutch includes clutch movable teeth and clutch fixed teeth, the clutch movable teeth are connected to the hollow spline shaft, the clutch movable teeth can move along the axial direction of the hollow spline shaft, the clutch fixed teeth are transmission-connected with a transmission shaft, the transmission shaft passes through the hollow spline shaft, and the other end of the transmission shaft is transmission-connected with a spiral bevel gear; a cutter disc is relatively rotationally connected to one end of the box body, a rotating tool is installed on the cutter disc, one side of the rotating tool is transmission-connected with a second transmission shaft, and the other end of the second transmission shaft is transmission-connected with a second spiral bevel gear, and the second spiral bevel gear is meshed with the spiral bevel gear.

[0003] Due to the high speed of high-speed motors, the bearings and lubricants used need to be specially customized and are very expensive. This special bearing dust is very harmful to it. Dust entering will cause bearing wear and reduce the service life of the high-speed motor. The current sealing methods used in high-speed motors include skeleton oil seals, mechanical seals and labyrinth seals. These traditional sealing methods cannot meet the requirements of zero leakage, so the sealing of high-speed motor bearings is very important; mechanical seals refer to at least one pair of end faces perpendicular to the axis of rotation, which are kept in contact and relatively sliding under the action of fluid pressure and the elastic force of the compensation mechanism and the cooperation of auxiliary seals to prevent fluid leakage. It is mainly used for shaft sealing devices of rotating machinery.

[0004] In the prior art, the power turret usually needs to have the Dongli motor built into the turret box due to structural size requirements to improve the compactness of the structure and processing accuracy. The traditional mechanical seal structure has high installation accuracy requirements, and the mechanical seal structure needs to be disassembled and assembled during maintenance, which can easily affect the processing positioning accuracy of the power turret during maintenance. The sealing effect of the traditional mechanical seal on the motor shaft depends to a large extent on the lubrication of the oil film of the dynamic seal structure. When the cooling and lubrication effects are not good, it is very easy to cause the dynamic seal to fail, thereby enriching the friction heat of the dynamic seal, damaging the sealing structure and causing the seal to fail.

[0005] In the prior art, there are some methods for strengthening the mechanical seal structure to improve the sealing effect. For example, the U.S. utility model patent US20080265515A1 discloses a driven seal assembly for a motor rotating transmission shaft, wherein the shaft is rotated by a motor arranged in a motor housing and has a sealing housing adjacent to the motor housing, and the shaft extends through the sealing housing; a first fixed seal seat is mounted on the shaft and fixed in a hole of the sealing housing; a first rotating seal is frictionally fitted on the shaft adjacent to the first fixed seal seat; a second fixed seal seat is mounted on the shaft and fixed in the hole of the motor housing; a second rotating seal is frictionally fitted on the shaft adjacent to the second fixed seal seat; a spring surrounds the shaft and provides a bidirectional axial force to the first and second fixed seal seats on the first and second rotating seals; an active drive mechanism is mounted on the shaft between the first and second rotating seals in a driving mating relationship, and includes a first drive element drivingly engaged with the first rotating seal and a second drive element drivingly engaged with the second rotating seal; the spring is placed in a compressed state between the first and second drive elements.

[0006] In this invention patent, the sealing effect of the mechanical seal structure is mainly maintained by using an active mechanism in combination with elastic force to provide a bidirectional axial force, which can ensure the reliability of the mechanical seal to a certain extent. However, it is still difficult to avoid the need for frequent cooling and lubrication to reduce the friction heat of the dynamic seal to maintain the sealing effect. During the disassembly and assembly process of the sealing structure maintenance, there are still situations that affect the processing accuracy of the power turret; in addition, during the high-speed rotation of the power turret motor shaft, the dynamic seal always has contact friction, and the dynamic seal is formed under the action of the lubricating oil film, which inevitably generates heat enrichment, and the requirements for lubrication and cooling will increase rapidly. When the motor shaft rotates at high speed, the service life of the mechanical seal structure will decrease rapidly, which restricts the performance of the high-speed drive of the built-in motor of the power turret. Utility Model Content

[0007] The purpose of the utility model is to provide a built-in motor sealing device for a power turret, so as to solve the problems in the prior art that the mechanical sealing structure of the motor shaft of the power turret restricts the high-speed performance of the sealing shaft, and the enriched heat caused by dynamic seal failure causes modification or damage of the dynamic seal structure and affects the sealing effect.

[0008] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:

[0009] The built-in motor sealing device for a power turret comprises a motor housing, wherein a power cavity is arranged in the motor housing, a stator is fixedly connected in the power cavity, a power main shaft is rotatably connected in the right end wall of the power cavity, a rotor is fixedly connected at the left end of the power main shaft, the positions of the rotor and the stator cooperate with each other, a coupling is fixedly connected at the right end of the power main shaft, an output main shaft is fixedly connected at the right end of the coupling, a built-in bearing is rotatably connected at the right end of the output main shaft, a sealing disk is provided at the right end of the output main shaft, the built-in bearing is rotatably connected in the sealing disk, a dynamic sealing chassis is fixedly connected to the right end surface of the sealing disk, a dynamic sealing ring is fixedly connected to the right end of the dynamic sealing chassis, a static sealing block is arranged at the right end of the output main shaft, the static sealing block is located on the right side of the dynamic sealing ring, a dynamic sealing block is fixedly connected to the left end of the static sealing block, and the position of the dynamic sealing block corresponds to the dynamic sealing ring, thereby reducing the installation difficulty of the built-in motor sealing structure of the power turret and reducing the influence of the disassembly, assembly and maintenance of the dynamic sealing structure on the built-in motor shaft on the processing accuracy of the power turret.

[0010] Preferably, a shaft sleeve is fixedly connected to the right end of the output main shaft, a synchronous sealing cover is fixedly connected to the shaft sleeve, a synchronous sealing chamber is provided in the synchronous sealing cover, an opening is provided at the left end of the synchronous sealing chamber, a group of evenly distributed guide track grooves are provided in the right end wall of the synchronous sealing chamber, a guide slider is slidably connected in the guide track groove, a guide mounting seat is fixedly connected to the left end face of the guide slider, a contact slider is slidably connected to the left end of the guide mounting seat, the contact slider is located on the lower side of the guide mounting seat, and a static sealing block is fixedly connected to the left end face of the contact slider, thereby improving the automatic compensation capability of the dynamic seal contact of the built-in motor of the power turret, improving the sealing effect maintenance effect of the sealing structure when the shaft of the built-in motor of the power turret is running at medium and low speeds, and reducing the installation requirements of the sealing structure and the damage of the sealing structure to the structural performance of motor parts.

[0011] Preferably, a group of evenly distributed radial sealing springs are fixedly connected to the end wall of the synchronous sealing cavity in the circumferential direction, the other end of the radial sealing spring is fixedly connected to the guide mounting seat, the right end of the guide mounting seat is fixedly connected to an axial sealing spring, the left end of the axial sealing spring is fixedly connected to the contact slider, a first sealing ring is fixedly connected to the sleeve, a second static sealing block is fixedly connected to the lower end of the static sealing block, a gap is provided at the lower end of the second static sealing block in a plane perpendicular to the axis of the output main shaft, the second static sealing block cooperates with the output main shaft to improve the sealing reliability of the motor shaft.

[0012] Preferably, a second static sealing block is fixedly connected to the lower end of the static sealing block, and the second static sealing block is tightly arranged in the circumferential direction of the output spindle. The second static sealing block is made of a material with elastic deformation properties, which reduces the possibility of heat enrichment generated by friction of the sealing structure when the built-in motor shaft of the power turret rotates at high speed, reduces the influence of the dynamic friction heat of the sealing structure on the performance of the sealing structure material, increases the service life of the sealing structure, and reduces the limitation of the sealing structure on the high-speed performance of the built-in motor of the power turret.

[0013] Preferably, a sealing storage cylinder is fixedly connected to the right end face of the sealing cover disk, a sealing storage cavity is provided in the sealing storage cylinder, a group of evenly distributed lubricating liquid tubes are fixedly connected to the dynamic sealing chassis, a lubricating liquid cavity is provided in the dynamic sealing chassis, and the lubricating liquid tubes and the lubricating liquid cavity are interconnected, thereby improving the sealing effect and sealing stability of the dynamic sealing structure of the built-in motor of the power turret.

[0014] Preferably, a group of evenly distributed blocking ring teeth are fixedly connected to the side of the synchronous sealing cover, a sealing storage cylinder is fixedly connected to the right end face of the covering disk, a sealing storage cylinder is provided in the sealing storage cylinder, a sealing storage cavity is provided in the side wall of the sealing storage cavity, a circumferential groove is provided in the side wall of the sealing storage cavity, and a gap is left between the blocking ring teeth and the blocking ring teeth, and a group of evenly distributed airflow pipe seats are fixedly connected to the right end face of the covering disk, and the positions of the airflow pipe seats cooperate with the blocking ring teeth. The gap between the blocking ring teeth and the groove in the side wall of the sealing storage cavity can effectively block larger debris from entering the internal space of the motor, and the outward flow of the airflow in the gap can keep smaller impurities from entering the internal space of the motor, thereby improving the sealing effect when the built-in motor of the power turret rotates at high speed.

[0015] Preferably, a built-in packaging box is provided at the left end of the motor housing, a packaging cavity is provided in the built-in packaging box, a heat dissipation sleeve is fixedly connected to the outer wall of the motor housing, the position of the heat dissipation sleeve corresponds to the stator, a group of evenly distributed storage and mounting seats are fixedly connected to the heat dissipation sleeve, and the storage and mounting seats are slidably connected in the packaging cavity.

[0016] Preferably, the right end face of the built-in packaging box is fixedly connected to the cover plate by threads, and the left end face of the cover plate and the right end face of the built-in packaging box are provided with a second sealing ring, which improves the sealing effect when the built-in motor of the power turret rotates at high speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall assembly of the built-in motor sealing device for the power turret of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the built-in motor sealing device for the power turret of the utility model;

[0020] Figure 3 yes Figure 2 A partial enlarged schematic diagram of the central synchronous sealing cover;

[0021] Figure 4 yes Figure 3 A partial enlarged schematic diagram of the built-in bearing;

[0022] Figure 5 yes Figure 3 A partial cross-sectional schematic diagram of the center synchronous sealing cover;

[0023] Figure 6 yes Figure 3 Schematic diagram of the three-dimensional structure at the middle cover plate;

[0024] Figure 7 yes Figure 4 Schematic diagram of the three-dimensional structure of the middle dynamic seal chassis;

[0025] Figure 8 yes Figure 3 Schematic diagram of the assembly structure at the middle sealing storage cylinder;

[0026] Fig. 9 yes Figure 5 Schematic diagram of the assembly structure at the middle guide mounting seat;

[0027] Fig.10 yes Figure 5 Schematic diagram of the three-dimensional structure at the middle guide mounting seat;

[0028] Fig.11 yes Figure 5 Schematic diagram of the internal structure of the middle contact slider;

[0029] Fig.12 yes Figure 2 Schematic diagram of the three-dimensional structure of the motor housing;

[0030] Fig.13 yes Fig.12 Schematic side view of .

[0031] Figure numbers: built-in packaging box 10; packaging cavity 11; motor housing 12; power cavity 13; rotor 14; stator 15; power spindle 16; coupling 17; built-in bearing 18; cover plate 19; output spindle 20; sleeve 21; synchronous seal cover 22; seal storage cylinder 23; seal storage cavity 24; air flow pipe seat 25; radial sealing spring 26; guide mounting seat 27; dynamic seal block 28; static seal block 29; contact slider 30; axial sealing spring 31; first sealing ring 32; guide track groove 33; guide slider 34; blocking ring tooth 35; dynamic seal chassis 36; lubricating fluid cavity 37; dynamic sealing ring 38; lubricating fluid pipe 39; bearing mounting hole 40; second sealing ring 41; second static seal block 43; heat dissipation sleeve 44; heat dissipation exchange seat 45; storage mounting seat 46; synchronous sealing cavity 47. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0034] Embodiment 1

[0035] See attached Figure 1 To Attachment Figure 5 As shown, the utility model provides a built-in motor sealing device for a power turret, including a motor housing 12, a power chamber 13 is provided in the motor housing 12, a stator 15 is fixedly connected in the power chamber 13, a power spindle 16 is rotatably connected in the right end wall of the power chamber 13, a rotor 14 is fixedly connected to the left end of the power spindle 16, the positions of the rotor 14 and the stator 15 cooperate with each other, a coupling 17 is fixedly connected to the right end of the power spindle 16, an output spindle 20 is fixedly connected to the right end of the coupling 17, a built-in bearing 18 is rotatably connected to the right end of the output spindle 20, a cover plate 19 is provided at the right end of the output spindle 20, a sealing boss is provided in the left end surface of the cover plate 19, a bearing mounting hole 40 is provided in the cover plate 19, the built-in bearing 18 is rotatably connected in the bearing mounting hole 40, and the cover plate 19 is provided at the right end. The end surface is fixedly connected with a dynamic sealing chassis 36, and the right end of the dynamic sealing chassis 36 is fixedly connected with a dynamic sealing ring 38. The dynamic sealing chassis 36 and the dynamic sealing ring 38 are located outside the bearing mounting hole 40 and the output main shaft 20. A static sealing block 29 is provided at the right end of the output main shaft 20. The static sealing block 29 is located on the right side of the dynamic sealing ring 38. The left end of the static sealing block 29 is fixedly connected with the dynamic sealing block 28. The position of the dynamic sealing block 28 corresponds to the dynamic sealing ring 38. The dynamic sealing block 28 and the static sealing block 29 are evenly distributed in the circumferential direction of the output main shaft 20. The dynamic sealing ring 38 remains stationary relative to the cover plate 19. The dynamic sealing block 28 and the static sealing block 29 rotate with the output main shaft 20 and can rotate relative to the dynamic sealing ring 38. There is dynamic friction contact between the dynamic sealing ring 38 and the dynamic sealing block 28.

[0036] The change in magnetic flux generated by the stator 15 drives the rotor 14 to drive the power spindle 16 to rotate, and drives the output spindle 20 to rotate synchronously through the coupling 17. When the motor is built-in, the motor is encapsulated as a whole through the cover disk 19, and the power provided by the motor is transmitted to the output spindle 20 through the coupling 17 on the power spindle 16, thereby providing power for the power turret. The channel connected to the motor is sealed under the cooperation of the static sealing block 29 and the output spindle 20, and the dynamic sealing block 28 and the dynamic sealing ring 38. The sealing structure is installed outside the motor and is easy to disassemble and assemble, which reduces the difficulty of installing the sealing structure of the motor built into the power turret, and reduces the influence of the disassembly and maintenance of the dynamic sealing structure on the built-in motor shaft on the processing accuracy of the power turret, thereby improving the sealing effect of the motor built into the power turret.

[0037] Refer to the attached Figure 5 To Attachment Fig.11 As shown, the right end of the output main shaft 20 is fixedly connected with a shaft sleeve 21, and the shaft sleeve 21 is fixedly connected with a synchronous sealing cover 22. A synchronous sealing chamber 47 is provided in the synchronous sealing cover 22, and an opening is provided at the left end of the synchronous sealing chamber 47. A group of uniformly distributed guide track grooves 33 are provided in the right end wall of the synchronous sealing chamber 47, and a guide slider 34 is slidably connected in the guide track groove 33. The left end face of the guide slider 34 is fixedly connected with a guide mounting seat 27, and the left end of the guide mounting seat 27 is slidably connected with a contact slider 30, which is located at the lower side of the guide mounting seat 27, and the left end face of the contact slider 30 is fixedly connected with a static sealing block 29;

[0038] Four groups of guide mounting seats 27 and guide sliders 34 are slidably connected in four evenly distributed guide track grooves 33 in the right end wall of the synchronous sealing chamber 47. Under the push of the elastic force of the radial sealing spring 26, the guide mounting seat 27 and the guide slider 34 slide in the guide track groove 33 toward the axial direction of the output main shaft 20, thereby driving the four contact sliders 30 and the static sealing block 29 to move toward the axial direction of the output main shaft 20 as a whole. After the lower ends of the four static sealing blocks 29 contact the surface of the output main shaft 20, the output main shaft 20 is completely closed in the circumferential direction under the elastic extrusion force and kept relatively still with the output main shaft 20, forming a static seal in the circumferential direction. The elastic force of the axial sealing spring 31 pushes the contact slider 30 on the left side of the guide mounting seat 27 to the left along the output main shaft 20 axis direction slides, drives the static seal block 29 and the dynamic seal block 28 to move left, makes the dynamic seal ring 38 and the end face of the dynamic seal block 28 contact to form a dynamic seal, connects the space on the left side of the static seal block 29 to the channel seal inside the motor, when the motor shaft built into the power turret rotates at medium and low speeds, the elastic force of the radial seal spring 26 and the axial seal spring 31 always pushes the dynamic seal block 28 and the static seal block 29 to maintain the contact state of the static seal and the dynamic seal, under the thrust of the axial seal spring 31, the automatic compensation capability of the dynamic seal contact of the motor built into the power turret is improved, improves the sealing effect of the sealing structure when the motor shaft built into the power turret runs at medium and low speeds, reduces the installation requirements of the sealing structure and the structural performance damage of the motor parts by the sealing structure.

[0039] A group of uniformly distributed radial sealing springs 26 are fixedly connected in the circumferential end wall of the synchronous sealing chamber 47, the other end of the radial sealing spring 26 is fixedly connected to the guide mounting seat 27, the right end of the guide mounting seat 27 is fixedly connected to the axial sealing spring 31, the left end of the axial sealing spring 31 is fixedly connected to the contact slider 30, the shaft sleeve 21 is fixedly connected to the first sealing ring 32, the lower end of the static sealing block 29 is fixedly connected to the second static sealing block 43, the lower end of the second static sealing block 43 is provided with a gap in a plane perpendicular to the axis of the output main shaft 20, and the second static sealing block 43 cooperates with the output main shaft 20;

[0040] After the second static sealing block 43 moves centripetally following the static sealing block 29, the circumferentially distributed second static sealing block 43 fits in place and seals the circumferential direction of the output main shaft 20 under the extrusion of the radial sealing spring 26. At this time, the gap at the lower end of the second static sealing block 43 separates the sealing of the second static sealing block 43 on the output main shaft 20 in the circumferential direction into a plurality of sealing rings arranged in parallel in the axial direction of the output main shaft 20, further improving the sealing reliability of the motor shaft.

[0041] The lower end of the static seal block 29 is fixedly connected with a second static seal block 43, and the second static seal block 43 is arranged in a tightly fitting manner in the circumferential direction of the output spindle 20. The dynamic seal block 28, the static seal block 29 and the second static seal block 43 are all made of a material having elastic deformation properties;

[0042] When the motor rotates at high speed, the output main shaft 20 drives the shaft sleeve 21 and the synchronous sealing cover 22 to rotate synchronously. The guide mounting seat 27 in the synchronous sealing cover 22 drives the guide slider 34 to slide upward in the guide track groove 33 under the action of centrifugal force. The guide track groove 33 keeps the sliding track of the guide mounting seat 27 fixed, which can improve the stability of the static sealing block 29 fitting the output main shaft 20 to form a seal. At this time, the guide mounting seat 27 drives the contact slider 30, the dynamic sealing block 28 and the static sealing block 29 as a whole away from the output main shaft 20 and out of the dynamic sealing contact with the dynamic sealing ring 38. Under the static sealing action of the first sealing ring 32 and the shaft sleeve 21, the motor The passage connecting the internal space to the outside is connected to the gap passage between the side wall of the sealing storage chamber 24 and the blocking ring gear 35. At this time, the external compressed gas is started to flow through the airflow pipe seat 25 to the matching gap at the blocking ring gear 35, which can blow away impurities that tend to enter the internal space of the motor, prevent debris from entering the internal space of the motor to form a contactless seal, reduce the possibility of heat enrichment generated by the friction of the sealing structure when the motor shaft built into the power turret rotates at high speed, reduce the influence of the dynamic friction heat of the sealing structure on the performance of the sealing structure material, increase the service life of the sealing structure, and reduce the limitation of the sealing structure on the high-speed performance of the motor built into the power turret;

[0043] In addition, the high-speed airflow can cool and dissipate heat for the dynamic sealing block 28 when passing through the synchronous sealing cavity 47, thereby preventing the accumulation of heat generated by high-speed friction when the dynamic sealing block 28 is not completely out of dynamic sealing contact, thereby improving the heat dissipation effect of the sealing structure.

[0044] The right end surface of the cover plate 19 is fixedly connected with a sealing receiving cylinder 23, and a sealing receiving chamber 24 is provided in the sealing receiving cylinder 23. A group of uniformly distributed lubricating liquid pipes 39 are fixedly connected to the dynamic sealing bottom plate 36, and a lubricating liquid chamber 37 is provided in the dynamic sealing bottom plate 36. The lubricating liquid pipes 39 and the lubricating liquid chamber 37 are communicated with each other.

[0045] When the dynamic sealing ring 38 and the dynamic sealing block 28 form a dynamic sealing contact, the lubricating oil can be supplied to the lubricating liquid chamber 37 through the lubricating liquid pipe 39 to infiltrate the dynamic sealing ring 38, thereby improving the sealing effect and sealing stability of the dynamic sealing structure of the built-in motor of the power turret.

[0046] Refer to the attached Fig.12 and attached Fig.13As shown, a group of evenly distributed blocking ring teeth 35 are fixedly connected to the side of the synchronous sealing cover 22, a sealing receiving cylinder 23 is fixedly connected to the right end face of the sealing plate 19, a sealing receiving chamber 24 is provided in the sealing receiving cylinder 23, a circumferential groove is provided in the side wall of the sealing receiving chamber 24, and a gap is left between the blocking ring teeth 35 and the right end face of the sealing plate 19, and a group of evenly distributed airflow pipe seats 25 are fixedly connected, and the positions of the airflow pipe seats 25 are matched with the blocking ring teeth 35;

[0047] The groove in the side wall of the sealed storage chamber 24 corresponds to the position of the blocking ring gear 35. The sealed storage cylinder 23 remains separated from the blocking ring gear 35 and the synchronous sealing cover 22, and does not contact the synchronous sealing cover 22 and the blocking ring gear 35 that rotate synchronously with the output spindle 20. The gap between the blocking ring gear 35 and the groove in the side wall of the sealed storage chamber 24 can effectively block larger debris from entering the internal space of the motor. The outward flow of air in the gap can keep smaller debris from entering the internal space of the motor, thereby improving the sealing effect when the built-in motor of the power turret rotates at high speed.

[0048] A built-in packaging box 10 is provided at the left end of the motor housing 12, and a packaging cavity 11 is provided in the built-in packaging box 10. A heat dissipation sleeve 44 is fixedly connected to the outer wall of the motor housing 12, and the position of the heat dissipation sleeve 44 corresponds to the stator 15. A group of evenly distributed storage and mounting seats 46 are fixedly connected to the heat dissipation sleeve 44, and the storage and mounting seats 46 are slidably connected in the packaging cavity 11.

[0049] The right end face of the built-in packaging box 10 is fixedly connected to the cover plate 19 by a thread, and the left end face of the cover plate 19 and the right end face of the built-in packaging box 10 are provided with a second sealing ring 41; a heat dissipation sleeve 44 is installed on the motor housing 12 to correspond to the position of the stator 15, which can improve the convenience of the internal heat dissipation operation of the motor and reduce the possibility of disassembly and maintenance of the motor; with the cooperation of the heat dissipation sleeve 44 and the heat dissipation exchange seat 45, the heat dissipation contact exchange area can be further increased, and the heat dissipation effect of the motor can be improved; with the cooperation of the storage mounting seat 46, the motor housing 12 is installed and stored in the packaging cavity 11, and with the cooperation of the second sealing ring 41 and the threaded connection, the motor is encapsulated in the packaging cavity 11 to ensure the use effect of the sealing structure, thereby improving the convenience and versatility of installation of the built-in motor of the power turret.

[0050] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the utility model, and are not intended to limit the implementation methods of the technology of the utility model in any form. Any technical personnel in this field may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the utility model, but they should still be regarded as technologies or embodiments that are essentially the same as the utility model.

[0051] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A built-in motor sealing device for a power turret, comprising a motor housing (12), wherein a power chamber (13) is provided in the motor housing (12), a stator (15) is fixedly connected in the power chamber (13), a power main shaft (16) is rotatably connected in the right end wall of the power chamber (13), a rotor (14) is fixedly connected at the left end of the power main shaft (16), a coupling (17) is fixedly connected at the right end of the power main shaft (16), an output main shaft (20) is fixedly connected at the right end of the coupling (17), and a built-in bearing (18) is rotatably connected at the right end of the output main shaft (20), characterized in that: The right end of the output main shaft (20) is provided with a cover plate (19), the cover plate (19) is rotatably connected to the built-in bearing (18), the right end surface of the cover plate (19) is fixedly connected to a dynamic sealing base plate (36), the right end of the dynamic sealing base plate (36) is fixedly connected to a dynamic sealing ring (38), the right end of the output main shaft (20) is provided with a static sealing block (29), and the left end of the static sealing block (29) is fixedly connected to the dynamic sealing block (28).

2. The built-in motor sealing device for a power turret according to claim 1, characterized in that: The right end of the output main shaft (20) is fixedly connected to a shaft sleeve (21), and a synchronous sealing cover (22) is fixedly connected to the shaft sleeve (21). A synchronous sealing chamber (47) is provided in the synchronous sealing cover (22), and an opening is provided at the left end of the synchronous sealing chamber (47). A group of uniformly distributed guide track grooves (33) are provided in the right end wall of the synchronous sealing chamber (47), and a guide slider (34) is slidably connected in the guide track groove (33). The left end surface of the guide slider (34) is fixedly connected to a guide mounting seat (27), and the left end of the guide mounting seat (27) is slidably connected to a contact slider (30), and the contact slider (30) is located at the lower side of the guide mounting seat (27). The left end surface of the contact slider (30) is fixedly connected to the static sealing block (29).

3. The built-in motor sealing device for a power turret according to claim 2, characterized in that: A group of uniformly distributed radial sealing springs (26) are fixedly connected in the circumferential end wall of the synchronous sealing chamber (47); the other end of the radial sealing spring (26) is fixedly connected to the guide mounting seat (27); the right end of the guide mounting seat (27) is fixedly connected to an axial sealing spring (31); the left end of the axial sealing spring (31) is fixedly connected to the contact slider (30); a first sealing ring (32) is fixedly connected in the shaft sleeve (21); a second static sealing block (43) is fixedly connected at the lower end of the static sealing block (29); and a gap is provided at the lower end of the second static sealing block (43) in a plane perpendicular to the axis of the output main shaft (20).

4. The built-in motor sealing device for a power turret according to any one of claims 1 to 3, characterized in that: A second static sealing block (43) is fixedly connected to the lower end of the static sealing block (29); the second static sealing block (43) is arranged in close contact with the circumferential direction of the output main shaft (20); and the second static sealing block (43) is made of a material having elastic deformation properties.

5. The built-in motor sealing device for a power turret according to claim 1, characterized in that: A sealing receiving cylinder (23) is fixedly connected to the right end surface of the sealing cover plate (19), a sealing receiving chamber (24) is provided in the sealing receiving cylinder (23), a group of evenly distributed lubricating liquid pipes (39) are fixedly connected to the dynamic sealing chassis (36), a lubricating liquid chamber (37) is provided in the dynamic sealing chassis (36), and the lubricating liquid pipes (39) are communicated with the lubricating liquid chamber (37).

6. The built-in motor sealing device for a power turret according to claim 2, characterized in that: A group of evenly distributed blocking ring teeth (35) are fixedly connected to the side of the synchronous sealing cover (22); a sealing receiving tube (23) is fixedly connected to the right end surface of the sealing plate (19); a sealing receiving chamber (24) is provided in the sealing receiving tube (23); a circumferential groove is provided in the side wall of the sealing receiving chamber (24) and is matched with the blocking ring teeth (35) with a gap therebetween; a group of evenly distributed airflow pipe seats (25) are fixedly connected to the right end surface of the sealing plate (19); the positions of the airflow pipe seats (25) are matched with the blocking ring teeth (35).

7. The built-in motor sealing device for a power turret according to claim 1, characterized in that: A built-in packaging box (10) is provided at the left end of the motor housing (12), a packaging cavity (11) is provided in the built-in packaging box (10), a heat dissipation sleeve (44) is fixedly connected to the outer wall of the motor housing (12), the position of the heat dissipation sleeve (44) corresponds to the stator (15), a group of evenly distributed storage mounting seats (46) are fixedly connected to the heat dissipation sleeve (44), and the packaging cavity (11) is slidably connected to the storage mounting seats (46).

8. The built-in motor sealing device for a power turret according to claim 7, characterized in that: The right end surface of the built-in packaging box (10) is fixedly connected to the sealing plate (19) via threads, and a second sealing ring (41) is provided on the left end surface of the sealing plate (19) and the right end surface of the built-in packaging box (10).

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