阅读说明：本技术 一种便于更换齿轮的新能源汽车差速器壳体结构 (New energy automobile differential mechanism shell structure convenient to change gear ) 是由 唐建新 许栩 林建华 吴金龙 李猛 于 2021-07-29 设计创作，主要内容包括：本发明公开了一种便于更换齿轮的新能源汽车差速器壳体结构,包括外壳,外壳上安装有第一对接管和第二对接管和第三对接管,第一对接管内转动安装有第一输出轴,第二对接管内转动安装有第二输出轴,第三对接管内转动安装有输入轴,本发明通过外壳、弧面封盖以及对接管道内安装的限位组件共同组成封闭式壳体结构,防止灰尘与齿轮接触,防尘效果好,有效降低齿轮的损坏几率,打开弧面封盖可以对内置套筒以及第一弧形压板进行拆卸,再将第一对接管、第二对接管以及第三对接管上安装的半弧形封板拆下,可以将第二弧形压板从半弧形卡座上取下,便于挪动第一输出轴、第二输出轴以及输入轴,便于将行星齿轮从外壳中取出,大大提高了更换齿轮的便捷性。(The invention discloses a differential mechanism shell structure of a new energy automobile convenient for gear replacement, which comprises a shell, wherein a first butt joint pipe, a second butt joint pipe and a third butt joint pipe are arranged on the shell, a first output shaft is rotatably arranged in the first butt joint pipe, a second output shaft is rotatably arranged in the second butt joint pipe, and an input shaft is rotatably arranged in the third butt joint pipe Second output shaft and input shaft are convenient for take out planetary gear from the shell, have improved the convenience of changing the gear greatly.)

1. The new energy automobile differential mechanism shell structure convenient for gear replacement is characterized by comprising an outer shell (1), a third butt joint pipe (9) is fixedly installed on the outer wall of the outer shell (1), a first butt joint pipe (2) and a second butt joint pipe (8) are symmetrically and fixedly installed on the outer wall of the outer shell (1), a first output shaft (3) is installed in the first butt joint pipe (2) in a rotating mode, a second output shaft (7) is installed in the second butt joint pipe (8) in a rotating mode, an input shaft (6) is installed in the third butt joint pipe (9) in a rotating mode, one end of the input shaft (6) is inserted into the outer shell (1) and is connected with the second output shaft (7) in a meshing mode, one end of the first output shaft (3) extends into the outer shell (1) and is connected with the second output shaft (7) in a meshing mode, a built-in sleeve (14) is fixedly installed in the outer shell (1), it installs planetary gear (15) to rotate on built-in sleeve (14), equal fixed mounting has spacing subassembly (10) in first butt joint pipe (2), second butt joint pipe (8) and the third butt joint pipe (9), first output shaft (3), input shaft (6) and second output shaft (7) all pass spacing subassembly (10) that the phase-match set up and rotate rather than being connected, equal fixed mounting has half arc shrouding (4) on first butt joint pipe (2), second butt joint pipe (8) and the third butt joint pipe (9), every half arc shrouding (4) all are located the top of the spacing subassembly (10) that the phase-match set up, the top fixed mounting of shell (1) has cambered surface closing cap (5).

2. The differential case structure of the new energy automobile convenient for gear replacement according to claim 1, characterized in that: one end of the first output shaft (3) extends into the shell (1) and is fixedly provided with a first sun gear (31), one end of the input shaft (6) extends into the shell (1) and is fixedly provided with a driving bevel gear (61), and the driving bevel gear (61) and the first sun gear (31) are both meshed with the planetary gear (15).

3. The differential case structure of the new energy automobile convenient for gear replacement according to claim 1, characterized in that: the inner wall of the shell (1) is fixedly provided with two built-in triangular blocks (13), the built-in sleeve (14) is fixedly arranged at the bottom ends of the two built-in triangular blocks (13) through screws, and the inner wall of the built-in sleeve (14) is fixedly provided with a limiting ring (141).

4. The differential case structure of the new energy automobile convenient for gear replacement according to claim 1, characterized in that: the inner fixed mounting of shell (1) has built-in layer board (12), the top of built-in layer board (12) is cut and is had semi-arc spacing groove (121), the top fixed mounting of built-in layer board (12) has first arc clamp plate (11), first output shaft (3) imbeds in semi-arc spacing groove (121) and rotate and install between built-in layer board (12) and first arc clamp plate (11).

5. The differential case structure of the new energy automobile convenient for gear replacement according to claim 1, characterized in that: every spacing subassembly (10) all include half arc cassette (101), and three half arc cassette (101) respectively fixed mounting be in first butt joint pipe (2), second butt joint pipe (8) and third butt joint pipe (9), every the top of half arc cassette (101) all has second arc clamp plate (103), every second arc clamp plate (103) all are equipped with spacing recess (102) rather than half arc cassette (101) inner wall that the phase-match set up jointly, fixed mounting's spacing collar all rotates with spacing recess (102) that the phase-match set up on first output shaft (3), input shaft (6) and second output shaft (7) and is connected.

6. The differential case structure of the new energy automobile convenient for gear replacement according to claim 1, characterized in that: planetary gear (15) include external gear (151), external gear (151) are rotated and are installed on built-in sleeve (14), annular groove (154) have been dug on the outer wall of external gear (151), spacing ring (141) embedding annular groove (154) of built-in sleeve (14) inner wall fixed mounting are interior and rotate rather than being connected, external gear (151) are connected with drive bevel gear (61) meshing, the one end fixed mounting that built-in sleeve (14) were kept away from in external gear (151) has carrier (152), rotate on carrier (152) and install two internal gear (153), two internal gear (153) all are connected with first sun gear (31) meshing.

7. The differential case structure of the new energy automobile convenient for gear replacement according to claim 1, characterized in that: one end of the second output shaft (7) penetrates through the outer gear (151) and the gear carrier (152) and is fixedly provided with a connecting shaft (71), one end, far away from the second output shaft (7), of the connecting shaft (71) is fixedly provided with a second sun gear (72), the second sun gear (72) is meshed with the two inner gears (153) and is connected with the two inner gears, a third nut (40) is installed on the second output shaft (7) in a threaded mode, and one end of the connecting shaft (71) is inserted into the second output shaft (7) and is in threaded connection with the third nut (40).

8. The differential case structure of the new energy automobile convenient for gear replacement according to claim 1, characterized in that: every half arc shrouding (4) all are located the top of second arc clamp plate (103) that the phase-match set up, every equal threaded mounting has second nut (30) on half arc shrouding (4), every the screw thread end of second nut (30) all with second arc clamp plate (103) threaded connection that the phase-match set up.

9. The differential case structure of the new energy automobile convenient for gear replacement according to claim 1, characterized in that: four first nuts (20) are installed on the cambered surface sealing cover (5) in a threaded mode, the threaded ends of the two first nuts (20) are in threaded connection with the built-in triangular blocks (13) which are arranged in a matched mode, and the threaded ends of the other two first nuts (20) are in threaded connection with the built-in supporting plate (12).

The technical field is as follows:

the invention belongs to the technical field of differentials, and particularly relates to a differential shell structure of a new energy automobile, which is convenient for gear replacement.

Background art:

the differential is one of important parts of the automobile and can enable left and right driving wheels or front and rear driving wheels to rotate at different rotating speeds. Mainly comprises a left half shaft gear, a right half shaft gear, two planet gears and a gear carrier. The left and right half-axle gears which are meshed with the planetary gears are also called as sun gears, the planetary gears, the sun gears and the driving gears are usually arranged in the same shell, most of the shells adopt a semi-closed structure, the main function of the shell is to limit and assemble various gears which form the differential, different gears are prevented from being disengaged and connected, and the driving stability of the automobile is ensured.

Traditional new energy automobile differential shell structure is in actual use, most adopt semi-enclosed frame construction, easily lead to the dust adhesion on the gear, increase the friction between the intermeshing connection gear, the probability of gear wear damage has been increased, and the gear of installation generally can't carry out horizontal or longitudinal movement in the shell, if need change the planetary gear of damage, because the clearance between the different gears is little, be difficult to dismantle planetary gear from the shell in, greatly reduced the convenience of changing the gear.

The invention content is as follows:

the invention aims to solve the problems and provide a differential shell structure of a new energy automobile with gears convenient to replace, which adopts a closed shell structure, can prevent dust from adhering to the gears forming the differential, reduce the frictional resistance of the gears and reduce the damage probability of the gears, can move a shaft body connected with wheels, can increase the clearance between different gears after a sun gear and a driving gear move away from a planetary gear, is convenient to take the planetary gear out of the shell, and greatly reduces the convenience of replacing the gears.

In order to solve the problems, the invention provides a technical scheme of a differential case structure of a new energy automobile, which is convenient for gear replacement, and comprises the following steps:

a differential mechanism shell structure of a new energy automobile convenient for gear replacement comprises an outer shell, wherein a third butt joint pipe is fixedly installed on the outer wall of the outer shell, a first butt joint pipe and a second butt joint pipe are symmetrically and fixedly installed on the outer wall of the outer shell, a first output shaft is installed in the first butt joint pipe in a rotating mode, a second output shaft is installed in the second butt joint pipe in a rotating mode, an input shaft is installed in the third butt joint pipe in a rotating mode, one end of the input shaft is inserted into the outer shell and is connected with the second output shaft in a meshing mode, one end of the first output shaft extends into the outer shell and is connected with the second output shaft in a meshing mode, a built-in sleeve is fixedly installed in the outer shell, a planetary gear is installed on the built-in sleeve in a rotating mode, the planetary gear is connected with the built-in sleeve in a rotating mode, and limiting assemblies are fixedly installed in the first butt joint pipe, the second butt joint pipe and the third butt joint pipe, first output shaft, input shaft and second output shaft all pass the spacing subassembly of phase-match setting and rotate rather than being connected, equal fixed mounting has half arc shrouding on first butt joint pipe, second butt joint pipe and the third butt joint pipe, every half arc shrouding all is located the top of the spacing subassembly of phase-match setting, the top fixed mounting of shell has the cambered surface closing cap.

Preferably, one end of the first output shaft extends into the housing and is fixedly provided with a first sun gear, one end of the input shaft extends into the housing and is fixedly provided with a drive bevel gear, the drive bevel gear and the first sun gear are both meshed with the planetary gear, the input shaft is ensured to drive the planetary gear to rotate through the meshed connection between the drive bevel gear and the planetary gear, and the planetary gear is meshed with the first sun gear and the second sun gear, so that the first output shaft and the second output shaft can be driven to rotate.

Preferably, two built-in triangular blocks are fixedly mounted on the inner wall of the shell, the built-in sleeve is fixedly mounted at the bottom ends of the two built-in triangular blocks through screws, a limiting ring is fixedly mounted on the inner wall of the built-in sleeve, and the built-in sleeve is fixedly mounted at the top end of the built-in triangular block through screws, so that the built-in sleeve can be firmly mounted in the shell.

Preferably, a built-in supporting plate is fixedly installed in the shell, a semi-arc-shaped limiting groove is formed in the top end of the built-in supporting plate, a first arc-shaped pressing plate is fixedly installed at the top end of the built-in supporting plate, the first output shaft is embedded into the semi-arc-shaped limiting groove and is rotatably installed between the built-in supporting plate and the first arc-shaped pressing plate, the first output shaft can be limited through the built-in supporting plate and the first arc-shaped pressing plate, the first output shaft can be kept in a parallel state, the phenomenon that the first sun gear and the inner gear are staggered and cannot be accurately meshed and connected is avoided, and the rotating stability of the first output shaft is effectively improved.

Preferably, each limiting component comprises a semi-arc-shaped clamping seat, the three semi-arc-shaped clamping seats are respectively and fixedly arranged in the first butt joint pipe, the second butt joint pipe and the third butt joint pipe, the top end of each semi-arc-shaped clamping seat is fixedly provided with a second arc-shaped pressing plate through screws, each second arc-shaped pressing plate and the inner wall of the semi-arc-shaped clamping seat matched with the second arc-shaped pressing plate are jointly provided with a limiting groove, the limiting rings fixedly arranged on the first output shaft, the input shaft and the second output shaft are respectively and rotatably connected with the limiting grooves matched with the second arc-shaped pressing plate, and the limiting rings fixedly arranged on the outer walls of the first output shaft, the input shaft and the second output shaft are respectively and rotatably connected with the corresponding limiting grooves, so that the three shaft bodies can be rotatably connected with the matched limiting components, the three shaft bodies can be prevented from generating transverse movement, and the stable meshing connection of internal gears of the differential can be ensured, the stability of differential mechanism during operation has effectively been improved.

Preferably, the planetary gear comprises an external gear, the external gear is rotatably mounted on an internal sleeve, an annular groove is cut on the outer wall of the external gear, a limiting ring fixedly mounted on the inner wall of the internal sleeve is embedded in the annular groove and is rotatably connected with the annular groove, the external gear can be stably rotatably mounted in the shell through the rotary connection between the limiting ring and the annular groove, the external gear is in meshing connection with a driving bevel gear, an input shaft can drive the planetary gear to rotate through the meshing connection between the driving bevel gear and the external gear, a gear carrier is fixedly mounted at one end of the external gear, which is far away from the internal sleeve, two internal gears are rotatably mounted on the gear carrier, both the two internal gears are in meshing connection with a first sun gear, and the planetary gear is ensured to rotate through the meshing connection between the first sun gear and the internal gears, can drive first output shaft and rotate, can let input shaft, first output shaft and second output shaft reach synchronous pivoted effect then.

Preferably, one end of the second output shaft penetrates through the external gear and the gear carrier and is fixedly provided with a connecting shaft, the outer wall of the second output shaft is not in contact with the external gear and the gear carrier, one end of the connecting shaft, which is far away from the second output shaft, is fixedly provided with a second sun gear, the second sun gear is in meshed connection with the two internal gears, the planetary gear can drive the second output shaft to rotate through the meshed connection between the second sun gear and the internal gears, the second output shaft is provided with a third nut in a threaded manner, one end of the connecting shaft is inserted into the second output shaft and is in threaded connection with the third nut, the part of the connecting shaft inserted into the second output shaft can be locked and fixed through the third nut, the connecting shaft can be firmly arranged on the second output shaft, and the connecting shaft and the second sun gear can be detached from the end part of the second output shaft by removing the third nut, the second sun gear is prevented from obstructing the disassembly of the planetary gear, and the disassembly convenience of the planetary gear is effectively improved.

As preferred, every half arc shrouding all sets up in the top of assorted second arc clamp plate, every equal threaded mounting has the second nut on the half arc shrouding, every the screw thread end of second nut all with the second arc clamp plate threaded connection that the phase-match set up, through the threaded connection between second nut and the second arc clamp plate, ensure that half arc shrouding can firmly be installed on the butt joint pipeline that corresponds, take off the second nut and can pull down half arc shrouding, conveniently dismantle spacing subassembly.

Preferably, four first nuts are installed on the arc-surface sealing cover in a threaded mode, the threaded ends of two first nuts are in threaded connection with the built-in triangular blocks which are arranged in a matched mode, the threaded ends of the other two first nuts are in threaded connection with the built-in supporting plate, the arc-surface sealing cover can be fixed to the top end of the shell through threaded connection between the first nuts and the built-in triangular blocks and the built-in supporting plate, the firmness of connection between the arc-surface sealing cover and the shell is improved, and the arc-surface sealing cover is convenient to disassemble and assemble.

The invention has the beneficial effects that:

the invention is provided with a shell and an arc sealing cover, wherein the first butt joint pipe, the second butt joint pipe and the third butt joint pipe which are fixedly arranged on the outer wall of the shell are internally provided with a limiting component, the three butt joint pipes can be blocked by the limiting component, the planetary gear, the sun gear and the drive bevel gear can be ensured to be arranged in a closed space formed by the shell and the arc sealing cover, the dust is prevented from falling on the gear to increase the friction resistance of the gear, the damage probability of the gear is effectively reduced, the built-in sleeve and the first arc-shaped pressing plate can be disassembled by opening the arc sealing cover, then the half arc-shaped sealing plates arranged on the first butt joint pipe, the second butt joint pipe and the third butt joint pipe are disassembled, and then the second arc-shaped pressing plate can be disassembled from the half arc-shaped clamping seat, so that the first output shaft, the second output shaft and the input shaft can be conveniently moved, and the space between the planetary gear and the first sun gear and the drive bevel gear is increased, the planetary gear can be taken out of the shell conveniently, and convenience in gear replacement is greatly improved.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is a schematic structural view of a spacing assembly of the present invention;

FIG. 5 is a schematic view of the planetary gear of the present invention coupled to an internal sleeve;

FIG. 6 is a schematic view of the structure of the built-in pallet of the present invention;

FIG. 7 is a schematic view of a first arcuate platen according to the present invention;

fig. 8 is a schematic view of the connection shaft of the present invention connected to a second output shaft.

In the figure: 1. a housing; 11. a first arc-shaped pressing plate; 12. a supporting plate is arranged inside; 121. a semi-arc shaped limit groove; 13. a triangular block is arranged inside; 14. a sleeve is arranged inside; 141. a limiting ring; 2. a first docking pipe; 3. a first output shaft; 31. a first sun gear; 4. a semi-arc-shaped sealing plate; 5. sealing the cover by the cambered surface; 6. an input shaft; 61. a drive bevel gear; 7. a second output shaft; 71. a connecting shaft; 72. a second sun gear; 8. a second pair of adapter tubes; 9. a third butt joint pipe; 10. a limiting component; 101. a semi-arc shaped card seat; 102. a limiting groove; 103. a second arc-shaped pressing plate; 15. a planetary gear; 151. an outer gear; 152. a gear carrier; 153. an internal gear; 154. an annular groove; 20. a first nut; 30. a second nut; 40. and a third nut.

The specific implementation mode is as follows:

as shown in fig. 1 to 8, the following technical solutions are adopted in the present embodiment:

example 1

Referring to fig. 1-3, the present embodiment provides a new energy vehicle differential housing structure convenient for gear replacement, which includes a housing 1, a third butt pipe 9 is fixedly installed on an outer wall of the housing 1, a first butt pipe 2 and a second butt pipe 8 are symmetrically and fixedly installed on the outer wall of the housing 1, a first output shaft 3 is rotatably installed in the first butt pipe 2, a second output shaft 7 is rotatably installed in the second butt pipe 8, an input shaft 6 is rotatably installed in the third butt pipe 9, one end of the input shaft 6 is inserted into the housing 1 and is engaged with the second output shaft 7, one end of the first output shaft 3 extends into the housing 1 and is engaged with the second output shaft 7, a built-in sleeve 14 is fixedly installed in the housing 1, a planetary gear 15 is rotatably installed on the built-in sleeve 14, and a limiting component 10 is fixedly installed in each of the first butt pipe 2, the second butt pipe 8 and the third butt pipe 9, first output shaft 3, input shaft 6 and second output shaft 7 all pass the spacing subassembly 10 that the phase-match set up and rotate rather than being connected, and equal fixed mounting has half arc shrouding 4 on first butt joint pipe 2, the second butt joint pipe 8 and the third butt joint pipe 9, and every half arc shrouding 4 all is located the top of the spacing subassembly 10 that the phase-match set up, and the top fixed mounting of shell 1 has cambered surface closing cap 5.

The existing differential shell structure of the new energy automobile mostly adopts a semi-closed frame structure, and mainly has the main effects of limiting and assembling the planetary gear 15, the sun gear and the drive bevel gear 61 which form the differential, because a large number of openings exist on the frame structure, dust is easily caused to fall into the semi-closed frame structure during the use period of the differential, if the dust is adhered to the gear inside the differential for a long time, the friction resistance of the gear is increased in the mutual transmission process of the gears, and the gear is easily caused to be seriously worn, if the closed shell structure is adopted, the differential shell structure not only can limit and assemble the planetary gear 15, the sun gear and the drive bevel gear 61, but also can prevent the dust from being adhered to the gear, thereby improving the dustproof effect and effectively reducing the probability of gear damage;

in order to improve the dustproof effect of the differential case structure and reduce the probability of gear damage, in this embodiment, the built-in sleeve 14 is fixedly mounted at the bottom ends of the two built-in triangular blocks 13 through screws, so as to ensure that the planetary gear 15 rotatably connected with the built-in sleeve 14 can be stably rotatably mounted inside the case 1, the first output shaft 3, the input shaft 6 and the second output shaft 7 can be limited through the limiting component 10, so as to effectively prevent the shaft body inserted into the case 1 from tilting, ensure that the first sun gear 31, the driving bevel gear 61 and the second sun gear 72 can be precisely engaged and butted with the planetary gear 15, and seal the first butt joint pipe 2, the second butt joint pipe 8 and the third butt joint pipe 9 through the limiting component 10, so as to prevent dust from entering a closed space formed by the case 1 and the cambered surface sealing cover 5, at this time, the first sun gear 31, the driving bevel gear 61, and the second output shaft 9 can be precisely engaged and butted with the planetary gear 15 through the limiting component 10, so as to prevent dust from entering the closed space formed by the case 1 and the cambered surface sealing cover 5, and the case, Second sun gear 72 and planetary gear 15 all install inside closed shell structure, can reduce the probability of all kinds of gear adhesion dust, improve shell structure's dustproof effect, avoid the dust adhesion to increase its frictional force on the gear, effectively reduced the probability of gear damage.

This embodiment is preferred, first butt joint pipe 2, equal fixed mounting has half arc shrouding 4 on second butt joint pipe 8 and the third butt joint pipe 9, every half arc shrouding 4 all sets up the top at the spacing subassembly 10 of assorted, open half arc shrouding 4 and can carry out the dismouting to spacing subassembly 10, the problem of spacing subassembly 10 installation at the inside dismouting that is difficult to of pipeline has been solved, install to first butt joint pipe 2 when half arc shrouding 4, when second butt joint pipe 8 and third butt joint pipe 9 are gone up, can carry out the shutoff to the opening on the pipeline, prevent that the dust from getting into shell structure along the pipeline inside, shell structure's dustproof performance has effectively been guaranteed.

Example 2

Referring to fig. 1-8, a further improvement is made on the basis of embodiment 1:

in order to make the input shaft 6, the first output shaft 3 and the second output shaft 7 form an effective transmission, one end of the first output shaft 3 extends into the housing 1 and is fixedly mounted with the first sun gear 31, one end of the input shaft 6 extends into the housing 1 and is fixedly mounted with the drive bevel gear 61, the planetary gears 15 are composed of the external gears 151, the gear carrier 152 and the internal gear 153 are jointly formed, the external gear 151 is meshed with the driving bevel gear 61, the gear carrier 152 is fixedly installed at one end, away from the internal sleeve 14, of the external gear 151, two internal gears 153 are rotatably installed on the gear carrier 152, the two internal gears 153 are both meshed with the first sun gear 31, one end of the second output shaft 7 penetrates through the external gear 151 and the gear carrier 152 and is fixedly installed with the connecting shaft 71, the second sun gear 72 is fixedly installed at one end, away from the second output shaft 7, of the connecting shaft 71, and the second sun gear 72 is meshed with the two internal gears 153;

in this embodiment, the input shaft 6 drives the driving bevel gear 61 to rotate, the driving bevel gear 61 is meshed with the planetary gear 15, it is ensured that the planetary gear 15 can rotate along with the driving bevel gear 61, the first output shaft 3 can rotate along with the input shaft 6 through the meshed connection between the planetary gear 15 and the first sun gear 31, the second output shaft 7 can rotate along with the first output shaft 3 through the meshed connection between the second sun gear 72 and the internal gear 153, transmission between the input shaft 6 and the first output shaft 3 and the second output shaft 7 can be realized in this embodiment, the input shaft 6 vertically arranged is ensured, and the first output shaft 3 can synchronously rotate.

In order to firmly install the planetary gear 15 in the shell 1, firstly, two built-in triangular blocks 13 are fixedly welded on the inner wall of the shell 1, then a connecting plate fixedly installed on the outer wall of a built-in sleeve 14 is fixed on the lower surface of the built-in triangular block 13 in a threaded manner, so that the built-in sleeve 14 can be firmly installed in the shell 1, an annular groove 154 is formed in the outer wall of an external gear 151 of a component of the planetary gear 15, and a limiting ring 141 fixedly installed on the inner wall of the built-in sleeve 14 is embedded in the annular groove 154 and is in rotating connection with the annular groove 154;

in this embodiment, the end of the external gear 151 is inserted into the internal sleeve 14, and the external gear 151 is securely rotatably mounted on the internal sleeve 14 through the rotational connection between the retainer ring 141 and the annular groove 154, and the external gear 151 is prevented from falling off from the internal sleeve 14, so that the planetary gear 15 can be securely mounted inside the housing 1 in a rotating state, and the stability of the planetary gear 15 after being mounted is effectively improved.

In order to prevent the inclination of the part of the first output shaft 3 in the housing 1, a built-in supporting plate 12 is fixedly installed in the housing 1, a semi-arc limiting groove 121 is cut at the top end of the built-in supporting plate 12, a first arc pressing plate 11 is fixedly installed at the top end of the built-in supporting plate 12, and the first output shaft 3 is embedded in the semi-arc limiting groove 121 and is rotatably installed between the built-in supporting plate 12 and the first arc pressing plate 11;

in this embodiment, because the part that first output shaft 3 is located shell 1 is longer, imbed first output shaft 3 in half arc spacing groove 121, can prevent that first output shaft 3 from producing the distortion of horizontal direction, with first arc clamp plate 11 fixed mounting on the top of built-in layer board 12, then can carry out the spacing of vertical direction to first output shaft 3, prevent that first output shaft 3 from producing the distortion of vertical direction, avoid first output shaft 3 distortion to produce the slope phenomenon.

In order to improve the stability of the first output shaft 3, the input shaft 6 and the second output shaft 7 during rotation, limiting assemblies 10 are fixedly installed in a first butt joint pipe 2, a second butt joint pipe 8 and a third butt joint pipe 9, each limiting assembly 10 comprises a semi-arc-shaped clamping seat 101, three semi-arc-shaped clamping seats 101 are respectively and fixedly installed in the first butt joint pipe 2, the second butt joint pipe 8 and the third butt joint pipe 9, a second arc-shaped pressing plate 103 is fixedly installed at the top end of each semi-arc-shaped clamping seat 101, a limiting groove 102 is jointly arranged on each second arc-shaped pressing plate 103 and the inner wall of the semi-arc-shaped clamping seat 101 matched with the second arc-shaped pressing plate 103, and limiting rings fixedly installed on the outer walls of the first output shaft 3, the input shaft 6 and the second output shaft 7 are rotatably connected with the limiting grooves 102 matched with each other;

in this embodiment, can be to first output shaft 3 through half arc cassette 101 and second arc clamp plate 103, input shaft 6 and second output shaft 7 carry on spacingly, can prevent that three axis body from producing and rocking, and first output shaft 3, equal fixed mounting has the spacing collar on the outer wall of input shaft 6 and second output shaft 7, the spacing collar imbeds in the spacing recess 102 and rotates rather than being connected, ensure that three axis body homoenergetic can be connected with the stable rotation of assorted spacing subassembly 10, and can prevent first output shaft 3, input shaft 6 and second output shaft 7 produce the removal of horizontal direction, first output shaft 3 has effectively been improved, input shaft 6 and second output shaft 7 rotate the stability of in-process.

In order to improve the convenience of detaching the second sun gear 72, a third nut 40 is installed on the second output shaft 7 in a threaded manner, one end of the connecting shaft 71 is inserted into a circular groove cut in the second output shaft 7 and is movably connected with the circular groove, and a threaded end of the third nut 40 is inserted into the second output shaft 7 and is in threaded connection with an internal thread groove cut in the outer wall of the connecting shaft 71;

in this embodiment, one end of the connecting shaft 71 is inserted into the circular groove at the end of the second output shaft 7, so that the connecting shaft 71 can be easily inserted into one end of the second output shaft 7, and the part of the connecting shaft 71 inserted into the circular groove is locked and fixed by the third nut 40, so that the firmness of the connection between the connecting shaft 71 and the second output shaft 7 can be improved, the third nut 40 is taken down from the second output shaft 7, the connecting shaft 71 and the second sun gear 72 can be taken out from the housing 1, and the convenience of detaching the second sun gear 72 is effectively improved.

In order to improve the convenience of disassembling the limiting assembly 10, each semi-arc-shaped sealing plate 4 is arranged above the matched second arc-shaped pressing plate 103, a second nut 30 is arranged on each semi-arc-shaped sealing plate 4 in a threaded mode, and the threaded end of each second nut 30 is in threaded connection with the matched second arc-shaped pressing plate 103;

in this embodiment, when the threaded end of second nut 30 passed half arc shrouding 4 and with second arc clamp plate 103 threaded connection, can lock the location to half arc shrouding 4, ensure that half arc shrouding 4 can firmly be installed at the first butt joint pipe 2 that corresponds the setting, the second is to taking over 8 and the third is to the pipe wall of taking over 9, take off second nut 30 and can pull down half arc shrouding 4 from the pipeline, first butt joint pipe 2 this moment, the opening on the second is to taking over 8 and the third is to the pipe wall of taking over 9 is opened, the convenience is dismantled spacing subassembly 10.

In order to improve the convenience of disassembling the planetary gear 15, four first nuts 20 are installed on the cambered surface sealing cover 5 in a threaded mode, wherein the threaded ends of two first nuts 20 are in threaded connection with the internal triangular block 13 which is arranged in a matched mode, and the threaded ends of the other two first nuts 20 are in threaded connection with the internal supporting plate 12;

in this embodiment, through the threaded connection between first nut 20 and built-in triangle piece 13 and the built-in layer board 12, ensure that cambered surface closing cap 5 can firmly be installed on the top of shell 1, after first nut 20 is taken off, cambered surface closing cap 5 loses spacingly, can relax take off its top from shell 1, can let shell 1 top opening be in the open mode, the staff can use the screwdriver to take off the screw that is used for fixed built-in sleeve 14 on built-in triangle piece 13 this moment, then let built-in sleeve 14 and built-in triangle piece 13 break away from the connection, can take out built-in sleeve 14 and the planetary gear 15 of its tip rotation installation from shell 1, the convenience of planetary gear 15 dismantlement has effectively been improved.

Example 3

Referring to fig. 1-7, a further improvement is made on the basis of embodiment 1:

in order to prevent the driving bevel gear 61 and the first sun gear 31 from obstructing the disassembly of the planetary gear 15, the first nut 20 is firstly removed from the arc-shaped sealing cover 5, when the arc-shaped sealing cover 5 is removed from the shell 1, a worker can disassemble the first arc-shaped pressure plate 11 and the built-in sleeve 14 inside the shell 1, and then remove the half-arc-shaped sealing plate 4 from the first butt joint pipe 2, the second butt joint pipe 8 and the third butt joint pipe 9, and at this time, the second arc-shaped pressure plate 103 inside the first butt joint pipe 2, the second butt joint pipe 8 and the third butt joint pipe 9 can be disassembled;

in this embodiment, after the first arc pressing plate 11 is disconnected from the built-in supporting plate 12, the first arc pressing plate 11 can be taken out from the inside of the housing 1, so as to ensure that the first arc pressing plate 11 does not limit the first output shaft 3 any more, after the second arc pressing plate 103 in the first butt joint pipe 2 is taken out, the first output shaft 3 is not limited by the limiting component 10 in the first butt joint pipe 2 any more, at this time, one end of the first output shaft 3, which is far away from the planetary gear 15, is slightly lifted, and then the limiting ring installed on the outer wall of the first output shaft 3 is pulled out from the limiting groove 102, and then the first output shaft 3 is pulled to the right side, so as to drive the first sun gear 31 to move to the right side, so as to effectively increase the distance between the first sun gear 31 and the planetary gear 15, after the second arc pressing plate 103 installed in the third butt joint pipe 9 is taken out, the input shaft 6 is not limited by the limiting component 10 any more, at this time, one end of the input shaft 6, which is far away from the planetary gear 15, is slightly lifted, then the limiting ring installed on the outer wall of the input shaft 6 is pulled out of the limiting groove 102, the input shaft 6 is pulled towards one end far away from the planetary gear 15, and then the driving bevel gear 61 can be driven to move towards one side of the third butt joint pipe 9, so as to ensure that the driving bevel gear 61 is not blocked on the right side of the planetary gear 15 any more, when the half arc-shaped sealing plate 4 installed on the second butt joint pipe 8 is removed, the second arc-shaped pressing plate 103 installed in the second butt joint pipe 8 is convenient to detach, at the moment, one end of the second output shaft 7 far away from the planetary gear 15 is slightly lifted, and the second output shaft 7 is pulled towards the left side, so that the second output shaft 7 and the second sun gear 72 installed at the end part thereof can be pulled into the second butt joint pipe 8, the second output shaft 7 and the connecting shaft 71 are prevented from blocking the detachment of the planetary gear 15, at the moment, the built-in sleeve 14 and the planetary gear 15 rotationally installed at the end part thereof can be taken out from the inside of the housing 1, the convenience of disassembling the planetary gear 15 is effectively improved.

While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.