A new drive structure

Abstract

The present invention provides a novel drive structure, relating to the field of sheet forming equipment, comprising a first reducer and a second reducer; the first reducer is a worm-turbine reducer, and the second reducer is a planetary gear reducer. The present invention, by designing the first reducer and the second reducer, wherein the first reducer is a worm-turbine reducer and the second reducer is a planetary gear reducer, and wherein the planetary gear reducer uses a central gear as input, a planetary gear carrier as output, and the first inner gear ring portion of the end shell as a fixed portion, achieves synchronous driving of the first and second screw assemblies of a co-directional parallel twin-screw extruder unit to rotate in the same direction. The structure is simple, the end shell portion is tightly integrated with the co-directional parallel twin-screw extruder unit, and the two-stage reduction can better amplify the torque, thereby solving the problem of long screw lengths in high-end units requiring stronger torque to drive the parallel twin screws.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet material forming equipment, in particular to a novel drive structure. Background Art

[0002] The cylindrical packaging materials used in daily chemical product packaging lines are mostly made by further processing of thermoplastic sheets.

[0003] Thermoplastic sheets are made from granular (or powder) masterbatch, which is melted and pressurized by thermoplastic extrusion equipment through a forming die, and then further extruded by a rolling group. After cooling, the thermoplastic sheet is wound and reeled by the winding equipment at the end of the thermoplastic sheet production line.

[0004] In a co-rotating parallel twin-screw extruder unit, a drive structure is used to synchronously drive the twin screws to rotate. The drive structure is the core power element of the unit. In order to mix materials more evenly and completely heat and melt the materials, the screw length in high-end units can reach more than 10 meters, which requires a stronger torque to drive the parallel twin screws. For this purpose, the present invention provides a new drive structure. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the present invention provides a new driving structure to solve the problem that the screw length in high-end units can reach more than 10 meters, and a stronger torque is needed to drive the parallel twin screws.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A novel drive structure is used to drive the first screw assembly and the second screw assembly of a co-rotating parallel twin-screw extruder to rotate in the same direction, comprising:

[0008] a first reducer, wherein a drive motor is fixedly mounted on a reducer housing of the first reducer, and an output end of the drive motor is fixedly mounted to an input end of the first reducer;

[0009] a second reducer, wherein the input shaft of the second reducer is connected to the output shaft of the first reducer via a coupling;

[0010] The first reducer is a worm gear reducer, and the second reducer is a planetary gear reducer, wherein the planetary gear reducer has a sun gear as input, a planetary gear carrier as output, and the first inner gear ring part of the end housing as fixed;

[0011] The planetary gear carrier includes a second inner gear ring portion and a second flange portion, wherein the second flange portion is fixedly mounted on a first end of the second inner gear ring portion, and the pinion gear assembly of the second reducer is rotatably mounted on an end of the second flange portion away from the second inner gear ring portion;

[0012] The end of the first screw assembly is provided with a first gear head, and the end of the second screw assembly is provided with a second gear head;

[0013] The first screw assembly and the second screw assembly are connected to the end shell through a stabilizing disk, and the first screw assembly and the second screw assembly are both rotatably mounted on the stabilizing disk, the stabilizing disk is fixedly mounted on the end shell, and the first gear head and the second gear head are both engaged with the second inner gear ring portion, and the first gear head and the second gear head are symmetrically distributed on both sides of the interior of the second inner gear ring portion.

[0014] Preferably, a worm and a turbine are installed inside the reducer housing, and a second transmission shaft is installed in conjunction with the center key of the turbine. The second transmission shaft is rotatably connected to the reducer housing through a bearing, and the second transmission shaft is the output shaft of the first reducer. The worm shaft of the worm is rotatably installed with the reducer housing through a bearing, and the worm shaft and the second transmission shaft are perpendicular to each other.

[0015] Preferably, the end shell is one end portion of a co-directional parallel twin-screw extruder group, and the end shell includes an integrally formed first flange portion, a first inner gear ring portion, a step hole portion, and a sealing platform portion. The first flange portion is connected to the left end of the first inner gear ring portion, the left end of the step hole portion is connected to the right end of the first inner gear ring portion, and the sealing platform portion is fixedly connected to the inner side of the step hole portion.

[0016] Preferably, an end cover is fixedly installed on the left end of the end shell, a first flange hole corresponding to the flange hole of the first flange part is opened at the end of the end cover, a center hole is opened at the center of the end cover, and the left end of the center gear is fixedly connected to a first transmission shaft, which is rotatably installed on the inner side of the center hole of the end cover through a bearing, and the first transmission shaft is the input shaft of the second reducer.

[0017] Preferably, the pinion gear assembly comprises: a mounting shaft and a pinion gear, one end of the mounting shaft is fixedly connected to the end of the second flange portion, and the pinion gear is rotatably mounted on the mounting shaft.

[0018] Preferably, the stabilizing disk comprises:

[0019] a first semicircular portion, wherein a first arc-shaped flange portion is fixedly connected to an arc-shaped outer side of the first semicircular portion, and a first arc-shaped opening and a second arc-shaped opening are formed on a straight outer side of the first semicircular portion;

[0020] a second semicircular portion, wherein the arc-shaped outer side of the second semicircular portion is fixedly connected to the second arc-shaped flange portion, and the straight outer side of the second semicircular portion is provided with a third arc-shaped opening and a fourth arc-shaped opening;

[0021] The inner end portion of the first semicircular portion is fixedly connected to a first connecting plate, the inner end portion of the second semicircular portion is fixedly connected to a second connecting plate, and the first connecting plate and the second connecting plate are fixedly connected together by a bolt group, so that the first semicircular portion and the second semicircular portion are assembled into an annular end plate, the first arc-shaped opening and the third arc-shaped opening are assembled into a first mounting hole, the second arc-shaped opening and the fourth arc-shaped opening are assembled into a second mounting hole, and the first arc-shaped flange portion and the second arc-shaped flange portion are assembled into a third flange;

[0022] A first sleeve is rotatably connected in the first mounting hole, a second sleeve is rotatably installed in the second mounting hole, the first screw assembly is rotatably installed on the inner side of the first sleeve, the second screw assembly is rotatably installed on the inner side of the second sleeve, and the third flange is sealed and fixed to the end shell.

[0023] Preferably, the inner sides of the first semicircular portion and the second semicircular portion are fixedly connected with arc-shaped bosses, and the two arc-shaped bosses are assembled into an annular boss, and the annular boss cooperates with the sealing platform to form a sealing contact surface.

[0024] The present invention provides a new type of driving structure. It has the following beneficial effects:

[0025] 1. The present invention, by designing a first reducer and a second reducer, the first reducer is a turbine-worm reducer, the second reducer is a planetary gear reducer, and the planetary gear reducer uses a central gear as input, a planetary gear carrier as output, and the first inner gear ring portion of the end shell as a fixed part, thereby realizing synchronous driving of the first screw assembly and the second screw assembly of the co-directional parallel twin-screw extruder unit to rotate in the same direction. The structure is simple, the end shell part is tightly combined with the co-directional parallel twin-screw extruder unit, and the two-stage deceleration can better amplify the torque, thereby solving the problem that the screw length in the high-end unit is long and a stronger torque is required to drive the parallel twin screws.

[0026] 2. The present invention is designed with a stabilizing disk, which is equivalent to a sealing plug on the side of the end shell close to the conveying cylinder, and is used to stabilize the positions of the first screw assembly and the second screw assembly, and at the same time serves the purpose of sealing and separation; the design of the end cover makes it easy to open the left end of the end shell and disassemble and inspect the central gear and planetary gear frame, so that when there is a problem with the stabilizing disk seal, it can be easily repaired. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of a thermoplastic sheet production device using the drive structure of the present invention;

[0028] Figure 2 This is a three-dimensional schematic diagram of a novel driving structure proposed by the present invention;

[0029] Figure 3A cross-sectional view of a novel drive structure proposed by the present invention;

[0030] Figure 4 This is an exploded diagram of a novel drive structure proposed by the present invention;

[0031] Figure 5 This is a diagram showing the installation of a planetary gear carrier of a novel drive structure proposed by the present invention;

[0032] Figure 6 This is a diagram showing the installation of a stabilizing disk of a novel drive structure proposed by the present invention;

[0033] Figure 7 This is an exploded view of a stabilizing disk of a novel drive structure proposed by the present invention;

[0034] Figure 8 This is a schematic diagram of the internal principle of a reducer with a new drive structure proposed by the present invention.

[0035] Among them, 1. support frame; 2. conveying cylinder; 3. feed hopper; 4. die head; 5. rolling group; 6. power roller group; 7. winding roller; 8. drive structure; 801, end shell; 801a, first inner ring gear portion; 801b, first flange portion; 801c, step hole portion; 801d, sealing platform portion; 802, end cover; 802a, first flange hole; 802b, center hole; 803, first transmission shaft; 804, center gear; 805, planetary gear carrier; 805a, second inner ring gear portion; 805b, second flange portion; 806, pinion assembly; 806a, pinion; 806b, mounting shaft; 807, stabilizing disk; 807a, first semicircular portion; 807b , the first arc-shaped flange portion; 807c, the first arc-shaped opening; 807d, the second arc-shaped opening; 807e, the second semicircular portion; 807f, the second arc-shaped flange portion; 807g, the third arc-shaped opening; 807h, the fourth arc-shaped opening; 807i, the first shaft sleeve; 807j, the second shaft sleeve; 807k, the first connecting plate; 807l, the second connecting plate; 807m, the bolt group; 808, the reducer housing; 809, the coupling; 8010, the drive motor; 8011, the turbine; 8012, the worm; 8012a, the worm shaft; 8013, the second transmission shaft; 9, the first screw assembly; 9a, the first gear head; 10, the second screw assembly; 10a, the second gear head. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0037] Example 1:

[0038] like Figures 1-8 As shown, an embodiment of the present invention provides a novel drive structure 8 for driving a first screw assembly 9 and a second screw assembly 10 of a co-rotating parallel twin-screw extruder to rotate in the same direction.

[0039] like Figure 1 、 Figure 2 As shown, the thermoplastic sheet production equipment using the drive structure 8 of the present invention includes: a support frame 1, a drive structure 8, a conveying cylinder 2, a feed hopper 3, a die head 4, a rolling group 5, a power roller group 6, a winding roller 7 and a first screw assembly 9 and a second screw assembly 10.

[0040] The driving structure 8 and the conveying cylinder 2 are both installed on the support frame 1. The inner side of the conveying cylinder 2 has a chamber that cooperates with the first screw assembly 9 and the second screw assembly 10. The first screw assembly 9 and the second screw assembly 10 are rotatably installed on the inner side of the conveying cylinder 2. The driving structure 8 synchronously drives the first screw assembly 9 and the second screw assembly 10 to rotate in the same direction and at the same speed. The feed hopper 3 is fixedly installed at the top of the conveying cylinder 2 and close to the end where the driving structure 8 is located. The feed hopper 3 is connected to the inside of the conveying cylinder 2, and a multi-stage heating structure (not shown in the drawings) is provided on the outside of the conveying cylinder 2, which is used to heat and melt the masterbatch when the first screw assembly 9 and the second screw assembly 10 convey the masterbatch.

[0041] The die head 4 is fixedly installed at the discharge end of the conveying cylinder 2, and the rolling group 5, the power roller group 6, and the winding roller 7 are all arranged behind the die head 4. The melted masterbatch is extruded from the die hole of the die head 4 through the first screw assembly 9 and the second screw assembly 10 to form a thicker sheet. The sheet is then further extruded and extended by the rolling group 5. After cooling (a cooling device is designed between the rolling group 5 and the power roller group 6), it is wound up by the winding roller 7. After the sheet is extruded from the die head 4, the power for its forward conveyance is provided by the power roller group 6, the rolling group 5, and the winding roller 7.

[0042] like Figures 1-8 As shown, a new driving structure 8 includes a first reducer and a second reducer.

[0043] Among them, a drive motor 8010 is fixedly installed on the reducer housing 808 of the first reducer. The drive motor 8010 is the power source of the drive structure. The output end of the drive motor 8010 is fixedly installed with the input end of the first reducer. The input shaft of the second reducer is connected to the output shaft of the first reducer through a coupling 809.

[0044] The driving motor 8010 transmits the rotation to the first reducer. After the first stage of deceleration, the output shaft of the first reducer transmits the rotation to the second reducer. After deceleration, the second reducer drives the first screw assembly 9 and the second screw assembly 10 to rotate.

[0045] Among them, the first reducer is a turbine-worm reducer, and the second reducer is a planetary gear reducer.

[0046] The worm-turbine tooth contact surface in the worm-turbine reducer is large during the transmission process, which can transmit a large torque and the transmission is relatively smooth. When the worm transmits rotation toward the worm, the worm slows down the rotation and amplifies the rotational torque at the same time.

[0047] A planetary gear reducer generally includes: a ring gear, a sun gear, and a planet carrier. Planetary gears are mounted on the planet carrier, and the planetary gears are transmitted between the ring gear and the sun gear. Depending on the requirements of use, the ring gear, sun gear, and planet carrier are selected as input, output, and fixed.

[0048] The planetary gear reducer in the present invention has a central gear 804 (equivalent to the sun gear) as input, a planetary gear carrier 805 (equivalent to the planetary carrier) as output, and a first inner gear ring portion 801a (equivalent to the ring gear) of the end housing 801 as a fixed part.

[0049] The central gear 804 drives the pinion assembly 806 of the planetary gear carrier 805 to rotate, and at the same time the pinion assembly 806 engages with the first inner gear ring portion 801a of the end shell 801, so that the planetary gear carrier 805 slows down and realizes two-stage deceleration, further amplifying the rotational torque.

[0050] The planetary gear carrier 805 includes a second inner gear ring portion 805a and a second flange portion 805b. The second flange portion 805b is fixedly installed on the first end of the second inner gear ring portion 805a. The pinion assembly 806 (equivalent to a planetary gear) of the second reducer is rotatably installed on the end of the second flange portion 805b away from the second inner gear ring portion 805a.

[0051] The pinion assembly 806 rotates and the second flange portion 805b revolves. The second inner gear ring portion 805a and the second flange portion 805b are an integral structure. At this time, the second inner gear ring portion 805a also rotates.

[0052] A first gear head 9a is provided at the end of the first screw assembly 9, and a second gear head 10a is provided at the end of the second screw assembly 10. The first screw assembly 9 and the second screw assembly 10 are connected to the end shell 801 through a stabilizing disk 807, and the first screw assembly 9 and the second screw assembly 10 are both rotatably mounted on the stabilizing disk 807, and the stabilizing disk 807 is fixedly mounted on the end shell 801, and the first gear head 9a and the second gear head 10a are both engaged with the second inner gear ring portion 805a, and the first gear head 9a and the second gear head 10a are symmetrically distributed on both sides of the interior of the second inner gear ring portion 805a.

[0053] When the second inner gear ring portion 805a rotates, the first gear head portion 9a and the second gear head portion 10a are synchronously driven to rotate, thereby causing the first screw assembly 9 and the second screw assembly 10 to rotate.

[0054] The stabilizing disk 807 serves as a sealing plug at one end of the end shell 801 close to the conveying barrel 2. While stabilizing the positions of the first screw assembly 9 and the second screw assembly 10, it also serves the purpose of separation to prevent the masterbatch inside the conveying barrel 2 from entering the end shell 801.

[0055] In one embodiment, a worm 8012 and a turbine 8011 are installed inside the reducer housing 808. The shape of the reducer housing 808 is designed according to the installation requirements and includes at least a mounting cavity for the worm 8012 and a mounting cavity for the turbine 8011. The center key of the turbine 8011 is fitted with a second transmission shaft 8013. The second transmission shaft 8013 is rotatably connected to the reducer housing 808 through a bearing, and the second transmission shaft 8013 is the output shaft of the first reducer. The worm shaft 8012a of the worm 8012 is rotatably installed with the reducer housing 808 through a bearing, and the worm shaft 8012a and the second transmission shaft 8013 are perpendicular to each other.

[0056] Reference Attachment Figure 1 、 Figure 8 The driving motor 8010 transmits power to the worm shaft 8012a of the worm 8012, the worm shaft 8012a and the worm 8012 rotate, the worm 8012 engages with the turbine 8011, drives the turbine 8011 to rotate, and at the same time drives the second transmission shaft 8013 installed with a key to rotate. The second transmission shaft 8013 is connected to the coupling 809 as the output shaft of the first reducer, driving the coupling 809 and the input shaft of the second reducer to rotate.

[0057] In one embodiment, the end shell 801 is one end portion of the co-directional parallel twin-screw extruder group and is fixedly connected to the conveying barrel 2 of the co-directional parallel twin-screw extruder group. The end shell 801 includes an integrally formed first flange portion 801b, a first inner gear ring portion 801a, a step hole portion 801c, and a sealing platform portion 801d. The first flange portion 801b is connected to the left end of the first inner gear ring portion 801a, the left end of the step hole portion 801c is connected to the right end of the first inner gear ring portion 801a, and the sealing platform portion 801d is fixedly connected to the inner side of the step hole portion 801c.

[0058] Specifically, an end cover 802 is fixedly installed on the left end of the end shell 801, and a first flange hole 802a corresponding to the flange hole of the first flange part 801b is opened at the end of the end cover 802. The end cover 802 is fixedly installed on the first flange part 801b of the end shell 801 using multiple sets of screws. A center hole 802b is opened at the center of the end cover 802. The left end of the center gear 804 is fixedly connected to the first transmission shaft 803, and the first transmission shaft 803 is rotatably installed on the inner side of the center hole 802b of the end cover 802 through a bearing. The first transmission shaft 803 is the input shaft of the second reducer.

[0059] The coupling 809 is fixedly connected to the first transmission shaft 803 . The output shaft of the first reducer drives the coupling 809 to rotate, thereby driving the first transmission shaft 803 to rotate. The first transmission shaft 803 drives the central gear 804 to rotate.

[0060] The end cover 802 is a sealing component at the left end of the end shell 801, so a sealing structure needs to be designed at the connection between the end cover 802 and the end shell 801, such as adding a sealing gasket.

[0061] In one embodiment, the pinion assembly 806 includes: a mounting shaft 806b and a pinion 806a. One end of the mounting shaft 806b is fixedly connected to the end of the second flange portion 805b. The pinion 806a is rotatably mounted on the mounting shaft 806b. The pinion 806a serves as a planetary gear of the planetary gear reducer. It rotates on its own, and the mounting shaft 806b and the pinion 806a also revolve synchronously.

[0062] In one embodiment, the stabilizing plate 807 includes a first semicircular portion 807a, a second semicircular portion 807e, a first sleeve 807i, a second sleeve 807j, and a bolt assembly 807m.

[0063] Among them, the arc-shaped outer side of the first semicircular portion 807a is fixedly connected to the first arc-shaped flange portion 807b, the straight outer side of the first semicircular portion 807a is opened with a first arc-shaped opening 807c and a second arc-shaped opening 807d, the arc-shaped outer side of the second semicircular portion 807e is fixedly connected to the second arc-shaped flange portion 807f, and the straight outer side of the second semicircular portion 807e is opened with a third arc-shaped opening 807g and a fourth arc-shaped opening 807h.

[0064] The inner end of the first semicircular portion 807a is fixedly connected to the first connecting plate 807k, and the inner end of the second semicircular portion 807e is fixedly connected to the second connecting plate 807l. The first connecting plate 807k and the second connecting plate 807l are fixedly connected together by a bolt group 807m, so that the first semicircular portion 807a and the second semicircular portion 807e are assembled into an annular end plate, the first arcuate opening 807c and the third arcuate opening 807g are assembled into a first mounting hole, the second arcuate opening 807d and the fourth arcuate opening 807h are assembled into a second mounting hole, and the first arcuate flange portion 807b and the second arcuate flange portion 807f are assembled into a third flange.

[0065] The first sleeve 807i is rotatably connected in the first mounting hole, the second sleeve 807j is rotatably installed in the second mounting hole, the first screw assembly 9 is rotatably installed on the inner side of the first sleeve 807i, the second screw assembly 10 is rotatably installed on the inner side of the second sleeve 807j, and the third flange is sealed and fixed to the end shell 801.

[0066] A sealing structure is designed at the connection between the first sleeve 807i and the first screw assembly 9, and a sealing structure is also designed at the connection between the second sleeve 807j and the second screw assembly 10.

[0067] During installation, first, the first sleeve 807i and the second sleeve 807j are correspondingly mounted on the first screw assembly 9 and the second screw assembly 10, and then the first semicircular portion 807a and the second semicircular portion 807e are opened from both sides on the first sleeve 807i and the second sleeve 807j, and then the bolt group 807m is tightened, and finally the integrated first semicircular portion 807a and the second semicircular portion 807e are installed on the sealing platform 801d, and the screw group can be used for fixed installation.

[0068] The inner sides of the first semicircular portion 807a and the second semicircular portion 807e are fixedly connected with arc-shaped bosses, and the two arc-shaped bosses are assembled into an annular boss. The annular boss cooperates with the sealing platform portion 801d to form a sealing contact surface, ensuring that after the first semicircular portion 807a, the second semicircular portion 807e and the sealing platform portion 801d are installed, they can achieve a good sealing effect.

[0069] In one embodiment, the second inner gear ring portion 805a is rotatably mounted on the inner side of the step hole portion 801c through a bearing, and the step at the step hole portion 801c cooperates with the second flange portion 805b, so that the step at the step hole portion 801c serves as a positioning portion for the installation of the planetary gear carrier 805, thereby ensuring that the planetary gear carrier 805 can be automatically installed in place, simplifying the positioning process.

[0070] In one embodiment, the pinion gear assembly 806 is meshed with the first inner gear ring portion 801 a , and the pinion gear assembly 806 is meshed with the central gear 804 . The pinion gear assembly 806 serves as a planetary gear of a planetary gear reducer, and rotates and revolves.

[0071] In one embodiment, the end shell 801 is fixedly connected to the conveying barrel 2 of the co-directional parallel twin-screw extruder group, and the first screw assembly 9 and the second screw assembly 10 are located on the inner side of the conveying barrel 2. The first screw assembly 9 and the second screw assembly 10 rotate on the inner side of the conveying barrel 2 to achieve stirring and spiral conveying of the masterbatch, extrude the material (the masterbatch after hot melting), and extrude the material out of the die head 4.

[0072] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A new type of drive structure for driving the first screw assembly and the second screw assembly of a parallel twin-screw extruder to rotate in the same direction, characterized in that: include: A drive motor is fixedly mounted on the reducer housing of the first reducer, and an output end of the drive motor is fixedly mounted to an input end of the first reducer; The input shaft of the second reducer is connected to the output shaft of the first reducer via a coupling; The first reducer is a worm gear reducer, and the second reducer is a planetary gear reducer. The planetary gear reducer has a sun gear as input, a planetary gear carrier as output, and the first inner gear ring part of the end housing as a fixed part; The planetary gear carrier includes a second inner gear ring portion and a second flange portion, wherein the second flange portion is fixedly mounted on a first end of the second inner gear ring portion, and a pinion assembly of the second reducer is rotatably mounted on an end of the second flange portion away from the second inner gear ring portion; The end of the first screw assembly is provided with a first gear head, and the end of the second screw assembly is provided with a second gear head; The first screw assembly and the second screw assembly are connected to the end housing through a stabilizing disk. The first screw assembly and the second screw assembly are both rotatably mounted on the stabilizing disk. The stabilizing disk is fixedly mounted on the end housing. The first gear head and the second gear head are both meshed with the second inner gear ring. The first gear head and the second gear head are symmetrically distributed on both sides of the interior of the second inner gear ring. The pinion gear assembly includes: a mounting shaft and a pinion gear, one end of the mounting shaft is fixedly connected to the end of the second flange portion, and the pinion gear is rotatably mounted on the mounting shaft; The end shell is one end of the co-directional parallel twin-screw extruder unit. The end shell includes an integrally formed first flange portion, a first inner gear ring portion, a step hole portion, and a sealing platform portion. The first flange portion is connected to the left end of the first inner gear ring portion, the left end of the step hole portion is connected to the right end of the first inner gear ring portion, and the sealing platform portion is fixedly connected to the inner side of the step hole portion; an end cover is fixedly installed on the left end, a first flange hole corresponding to the flange hole of the first flange portion is opened at the end of the end cover, a center hole is opened in the center of the end cover, and a first transmission shaft is fixedly connected to the left end of the center gear. The first transmission shaft is rotatably mounted on the inner side of the center hole of the end cover through a bearing. The first transmission shaft is the input shaft of the second reducer; The second inner gear ring is rotatably mounted on the inner side of the step hole portion through a bearing. The step at the step hole portion cooperates with the second flange portion, so that the step at the step hole portion serves as a positioning portion for installing the planetary gear carrier, ensuring that the planetary gear carrier can be automatically installed in place.

2. The novel drive structure according to claim 1 is characterized in that: A worm and a turbine are installed inside the reducer housing. The center key of the turbine is fitted with a second transmission shaft. The second transmission shaft is rotatably connected to the reducer housing through a bearing. The second transmission shaft is the output shaft of the first reducer. The worm shaft of the worm is rotatably mounted to the reducer housing through a bearing, and the worm shaft and the second transmission shaft are perpendicular to each other.

3. The novel drive structure according to claim 1 is characterized in that: The stabilizing plate comprises: a first arc-shaped flange portion fixedly connected to the arc-shaped outer side of a first semicircular portion; and a first arc-shaped opening and a second arc-shaped opening are opened on the straight outer side of the first semicircular portion.

4. The novel drive structure according to claim 3 is characterized in that: The arc-shaped outer side of the second semicircular part is fixedly connected with the second arc-shaped flange part, and the straight outer side of the second semicircular part is provided with a third arc-shaped opening and a fourth arc-shaped opening.

5. The novel drive structure according to claim 4 is characterized in that: The inner end of the first semicircular portion is fixedly connected to the first connecting plate, and the inner end of the second semicircular portion is fixedly connected to the second connecting plate. The first connecting plate and the second connecting plate are fixedly connected together by a bolt group, so that the first semicircular portion and the second semicircular portion are assembled into an annular end plate, the first arc-shaped opening and the third arc-shaped opening are assembled into a first mounting hole, the second arc-shaped opening and the fourth arc-shaped opening are assembled into a second mounting hole, and the first arc-shaped flange portion and the second arc-shaped flange portion are assembled into a third flange.

6. The novel drive structure according to claim 5 is characterized in that: The first sleeve is rotatably connected in the first mounting hole, the second sleeve is rotatably installed in the second mounting hole, the first screw assembly is rotatably installed on the inner side of the first sleeve, the second screw assembly is rotatably installed on the inner side of the second sleeve, and the third flange is sealed and fixed to the end shell.

7. The novel drive structure according to claim 6 is characterized in that: The inner sides of the first semicircular portion and the second semicircular portion are both fixedly connected with arc-shaped bosses, and the two arc-shaped bosses are assembled into an annular boss, which cooperates with the sealing platform to form a sealing contact surface.

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