CN215763213U - Anti-leakage transfer device of cigarette making and plug assembling machine - Google Patents

Abstract

The utility model discloses an anti-leakage transfer device of a cigarette making and plug assembling machine, which comprises a gear box, a gear shaft and a gear sleeve, wherein the gear shaft is fixedly arranged in the gear box, the gear sleeve is sleeved on the periphery of the gear shaft, an oil seal structure is arranged between the gear shaft and the gear sleeve, the oil seal structure comprises an oil seal piece I, an oil seal piece II and an oil seal piece III which are sequentially clamped between a gear shaft and a gear sleeve, wherein the inner ring of the oil seal piece III is in threaded connection with the gear shaft, the screwing direction of the threads is the same as the rotating direction of the gear sleeve around the gear shaft, the oil seal piece I and the oil seal piece III comprise a first annular rubber and a first steel ring framework packaged in the first annular rubber, the oil seal piece II comprises a second steel ring framework and a second annular rubber inserted in the inner ring of the second steel ring framework, and the outer diameter of the steel ring framework II is smaller than that of the annular rubber I, so that the stability of the oil seal structure is ensured, meanwhile, the steel ring framework can ensure that the oil seal structure is not easy to deform under a long-time high-temperature environment.

Description

Anti-leakage transfer device of cigarette making and plug assembling machine

Technical Field

The utility model relates to the technical field of cigarette making machines, in particular to an anti-leakage transfer device of a cigarette making machine.

Background

The main production machine in the cigarette industry is a PT series cigarette making and connecting machine, which comprises a ZJ17 cigarette making and connecting machine set and a ZJ112 high-speed cigarette making and connecting machine set. The PT series cigarette making and tipping machine uses a spider hand conveying device to convey double-length cigarettes to a mouth connecting machine, and the spider hand conveying device plays an important role in the whole machine set. However, in production, oil stains are often adhered to the surfaces of cigarettes due to oil leakage of the spider hand conveying arms, so that the equipment is stopped for a long time for maintenance, and the reason for the oil leakage of the conveying arms is obtained through observation and analysis in production as follows: the transmission structure of spider hand assembly belongs to the planet wheel structure, and internally mounted has a large amount of planetary gears, and at the operation in-process, these gears revolve around the sun gear and rotate, drive eight cigarette transfer arms respectively, and the inside negative pressure that leads to of transfer arm adsorbs the conveying to rolling up fashioned double-length cigarette. In gear box and drive arm, there is a negative pressure circuit, it has sufficient negative pressure to ensure spider hand suction groove and can adsorb the conveying cigarette, and form a negative pressure chamber in spider hand conduction arm and the handing-over department of gear box, negative pressure chamber both sides all have the oil blanket to seal, but negative pressure chamber and gear box only have an oil blanket to separate, the negative pressure chamber middle has been full of the negative pressure and has been induced drafted, the negative pressure is induced drafted and can be produced pressure to the oil blanket of both sides, lead to the oil blanket to warp, cause the inside fluid of spider hand gear box to produce the seepage phenomenon, get into the negative pressure passageway, under the centrifugal force of high-speed rotation, be got rid of on the surface, it scraps to form the cigarette, therefore it is necessary to carry out the improvement to prop up the cigarette.

Disclosure of Invention

The utility model aims to provide an anti-leakage transfer device of a cigarette making and plug assembling machine, which ensures the stability of an oil seal structure under the environment of high-frequency radial circular runout of a gear sleeve on one hand and ensures that the oil seal structure is not easy to deform under heat in a long-time high-temperature environment to cause failure of a sealing structure by the aid of the design of the oil seal structure on the other hand.

The technical purpose of the utility model is realized by the following technical scheme: an anti-leakage transmission device of a rolling machine comprises a gear box, a gear shaft and a gear sleeve, wherein a containing cavity is arranged in the gear box, the gear shaft is fixedly arranged in the containing cavity, the gear sleeve is arranged on the periphery of the gear shaft through a bearing sleeve, a lubricating channel communicated with the containing cavity is arranged on the side wall of the gear sleeve, one end, far away from the gear box, of the gear sleeve is fixedly connected with a conducting arm, a negative pressure channel communicated with each other is formed in the gear box, the gear shaft and the conducting arm, a negative pressure control device communicated with the negative pressure channel is arranged on the gear box, an oil seal structure is arranged between the gear shaft and the gear sleeve and is positioned between the lubricating channel and the conducting arm, the oil seal structure comprises an oil seal piece I, an oil seal piece II and an oil seal piece III which are sequentially clamped between the gear shaft and the gear shaft in a threaded connection mode, the screwing direction of an inner ring of the oil seal piece III is the same as the rotating direction of the gear sleeve around the gear shaft, the oil seal I and the oil seal III comprise a first annular rubber and a first steel ring framework packaged in the first annular rubber, the oil seal II comprises a second steel ring framework and a second annular rubber inserted into the inner ring of the second steel ring framework, and the outer diameter of the second steel ring framework is smaller than that of the first annular rubber.

Furthermore, the periphery of the inner rings of the oil seal piece I and the oil seal piece III is integrally molded with an annular hollow spring ring, and the periphery of the inner ring of the oil seal piece II is also integrally molded with an annular hollow spring ring.

Further, the inner ring of the oil seal piece I is of a corrugated inner-outer double-layer structure, and the inner ring of the oil seal piece III is of a threaded inner-outer double-layer structure.

Furthermore, a shaft sleeve is arranged on the periphery of the gear sleeve, a dynamic sealing element and a static sealing element are clamped between the shaft sleeve and the gear box, the rotating direction of the inner ring thread of the dynamic sealing element is opposite to the rotating direction of the shaft sleeve, a gap is reserved between the inner ring of the dynamic sealing element and the outer ring of the shaft sleeve, and the static sealing element is abutted against the outer end part of the dynamic sealing element.

Furthermore, the negative pressure channel comprises a channel I positioned in the conduction arm, a channel II positioned in the gear shaft and a channel III positioned in the gear box, wherein the channel I, the channel II and the channel III are communicated with each other, and the channel III is communicated with the negative pressure control device.

Further, the one end that the pinion lies in the conduction arm is equipped with the hole groove of intercommunication passageway II, is equipped with the negative pressure chamber that is used for intercommunication passageway I and hole groove between pinion and the conduction arm, the both ends that the negative pressure chamber corresponds the hole groove are equipped with the oil blanket group respectively, the oil blanket group clamp is arranged in between pinion and the conduction arm.

Further, the other end of the gear box, which is opposite to the conducting arm, is provided with a main shaft, the gear box is rotatably connected to the main shaft, an oil duct is arranged in the main shaft, the oil duct is provided with an oil pipe extending to the accommodating cavity, a gap is formed between the oil duct and the oil pipe, a return channel communicating the accommodating cavity and the oil duct is arranged in the gear box, and an oil return hole communicating the oil duct is formed in the outer end of the main shaft.

Further, the gear box includes left end lid, ring body and the right-hand member lid of sealed fixed connection, the middle part of ring body is equipped with the wall portion, the wall portion separates into two chambeies with the gear box, backflow channel is for lining up the passageway that the wall portion is used for communicateing two chambeies.

Furthermore, the flow detector and the warning lamp are further included, the flow detector is connected to the inlet end of the oil pipe, and the flow detector is electrically connected with the warning lamp.

Furthermore, one end of the main shaft, which is close to the gear box, is rotatably connected with the partition part through a bearing, a sun wheel is fixedly mounted on one side of the main shaft, which is located on the partition part, a plurality of planet wheels which are in meshing transmission with the sun wheel are mounted on the partition part, the planet wheels drive a gear sleeve and a transmission arm to rotate around a gear shaft, and a lubricating flow channel which is communicated with cavities at two ends of the partition part is arranged at the position of the partition part, which corresponds to the planet wheels.

In conclusion, the utility model has the following beneficial effects:

the utility model provides a rolling up machine antiseep transmission device, design through the oil blanket structure, on the one hand, under the environment of tooth cover high frequency radius run-out, guarantee this oil blanket structure's stability, on the other hand, this steel ring skeleton can guarantee that the oil blanket structure is difficult for the thermal deformation and lead to the seal structure inefficacy in long-time high temperature environment, the inner circle of seal structure III and tooth axle threaded connection and the screw thread of oil seal III revolve to around tooth axle pivoted opposite direction with the tooth cover for tooth cover and conduction arm are around tooth axle pivoted in-process, oil seal III and tooth axle connecting thread are connected inseparabler, and then guaranteed greatly that the lubricating oil that holds the intracavity can not soak the negative pressure passageway.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an enlarged view of the present invention at a.

Fig. 3 is an enlarged view of the present invention at B.

Fig. 4 is a schematic view of an oil seal structure of the present invention.

In the figure: 1. a gear case; 11. a cavity; 12. a left end cap; 13. a ring body; 131. a partition part; 132. a return channel; 133. lubricating the flow channel; 14. a right end cap; 2. a gear shaft; 21. a hole groove; 22. a negative pressure chamber; 23. an oil seal group; 24. a clamp spring; 3. a gear sleeve; 31. a lubrication channel; 32. a shaft sleeve; 33. a dynamic seal; 34. a static seal; 4. a conducting arm; 41. a toothed tube; 42. a carrier gear; 43. a suction claw; 5. a negative pressure channel; 51. a negative pressure control device; 52. A channel I; 53. a channel II; 54. a channel III; 6. an oil seal structure; 61. an oil seal piece I; 611. a first annular rubber; 612. a first steel ring framework; 62. an oil seal II; 621. a second steel ring framework; 622. a second annular rubber; 63. an oil seal member III; 64. an annular hollow spring ring; 7. a main shaft; 71. an oil passage; 72. an oil pipe; 73. an oil return hole; 74. a flow detector; 75. a warning light; 76. a sun gear; 77. and a planet wheel.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

As shown in fig. 1-4, an antiseep transfer device of a cigarette making and plug assembling machine comprises a gear case 1, a gear shaft 2 and a gear sleeve 3, wherein a containing cavity 11 is arranged in the gear case 1, the gear shaft 2 is fixedly installed in the containing cavity 11, the gear sleeve 3 is arranged on the periphery of the gear shaft 2 through a bearing sleeve, specifically, a main shaft 7 is arranged at the left end of the gear case 1, the gear case 1 is rotatably connected to the main shaft 7, the gear case 1 adopts a split structure and comprises a left end cover 12, a ring body 13 and a right end cover 14 which are fixedly connected in a sealing manner, a partition part 131 is arranged in the middle of the ring body 13, and the partition part 131 divides the gear case 1 into two containing cavities 11.

The main shaft 7 is internally provided with an oil passage 71, the oil passage 71 is provided with an oil pipe 72 extending to the cavity 11, a gap is formed between the oil passage 71 and the oil pipe 72, the partition 131 is provided with a return passage 132 communicating the cavity 11 and the oil passage 71, specifically, the return passage 132 is a passage penetrating the partition 131 and communicating the two cavities 11, a connecting pipe is arranged in the cavity 11 at the left end of the gear box 1, the return passage 132 is communicated with the oil passage 71 through the connecting pipe, the outer end of the main shaft 7 is provided with an oil return hole 73 communicating the oil passage 71, lubricating oil enters the cavity 11 at the right end of the gear box 1 through the oil pipe 72 and is thrown away under the action of centrifugal force, further, parts in the cavity 11 at the right end are lubricated, finally, the lubricating oil sequentially flows back to the oil passage 71 through the return passage 132 and the connecting pipe and is converged through the oil return hole 73, and through the above arrangement, the parts in the gear box 1 can be conveniently and fully lubricated, prevent that sealing member or oil seal spare from ageing because of not obtaining fine lubrication, simultaneously because lubricating oil runs off easily under the effect of negative pressure vacuum and inside high temperature, easily arouse parts such as each gear and bearing to take place wearing and tearing when lubrication is not in place, cause the transmission clearance too big, influence this cigarette machine's normal work.

The cigarette making machine further comprises a flow detector 74 and a warning lamp 75, wherein the flow detector 74 is connected to the inlet end of the oil pipe 72, the flow detector 74 is electrically connected with the warning lamp 75, when the flow detector 74 detects that the flow of the lubricating oil is smaller than a set threshold value, the warning lamp 75 can send out an alarm signal to remind a user, and at the moment, the cigarette making machine needs to increase the flow of the lubricating oil.

The side wall of the gear sleeve 3 is provided with a lubricating channel 31 communicated with the containing cavity 11, the design enables thrown-off lubricating oil to smoothly enter the gear sleeve 3 so as to lubricate a bearing part in the gear sleeve 3, one end of the gear sleeve 3 far away from the gear box 1 is fixedly connected with a conduction arm 4, a negative pressure channel 5 communicated with each other is formed in the gear box 1, the gear shaft 2 and the conduction arm 4, the gear box 1 is provided with a negative pressure control device 51 communicated with the negative pressure channel 5, specifically, the negative pressure channel 5 comprises a channel I52 positioned in the conduction arm 4, a channel II 53 positioned in the gear shaft 2 and a channel III 54 positioned in the gear box 1, the channel I52, the channel II 53 and the channel III 54 are communicated with each other, the channel III 54 is communicated with the negative pressure control device 51, a gear pipe 41 is rotatably installed in the conduction arm 4, and the gear shaft 2 is rotatably connected with the gear pipe 41 through a bridge gear 42, the outer end of the gear pipe 41 is provided with a suction claw 43, and the suction claw 43 generates negative pressure through a negative pressure control device 51 to grab a cigarette.

An oil seal structure 6 is arranged between the gear shaft 2 and the gear sleeve 3, the oil seal structure 6 is located between the lubricating channel 31 and the conduction arm 4, the oil seal structure 6 comprises an oil seal part I61, an oil seal part II 62 and an oil seal part III 63 which are sequentially clamped between the gear shaft 2 and the gear sleeve 3, wherein the inner ring of the oil seal part III 63 is in threaded connection with the gear shaft 2, the screwing direction of the threads is the same as the rotating direction of the gear sleeve 3 around the gear shaft 2, the oil seal part I61 and the oil seal part III 63 comprise a first annular rubber 611 and a first steel ring framework 612 packaged in the first annular rubber 611, the oil seal part II 62 comprises a second steel ring framework 621 and a second annular rubber 622 inserted in the second steel ring framework 621, and the outer diameter of the second steel ring framework 621 is smaller than that of the first annular rubber 611.

Through the design of oil blanket structure 6, on the one hand, under the environment of 3 high frequency radial circle runouts of tooth cover, this oil blanket structure 6's stability can be guaranteed to the steel ring skeleton, on the other hand, this steel ring skeleton can guarantee that oil blanket structure 6 is difficult for the thermal deformation and leads to the seal structure inefficacy in long-time high temperature environment, the inner circle of the oil seal piece III 63 of seal structure revolves to around 2 pivoted directions of tooth axle with tooth cover 3 with 2 threaded connection of tooth axle and the screw thread of oil seal piece III 63 simultaneously, make tooth cover 3 and conduction arm 4 around 2 pivoted in-process of tooth axle, oil seal piece III 63 is inseparabler with 2 continuous threaded connection of tooth axle, and then guaranteed greatly that the lubricating oil that holds the intracavity 11 can not dip negative pressure passageway 5.

Annular hollow spring ring 64 is moulded plastics to oil seal I61 and the inner circle periphery of oil seal III 63 an organic whole, annular hollow spring ring 64 is also moulded plastics to the inner circle periphery of oil seal II 62 an organic whole, oil seal I61, the inner circle of oil seal II 62 and oil seal III 63 respectively with 2 interference fit of tooth axle, when oil seal I61, oil seal II 62, the inner circle of oil seal III 63 and tooth axle 2 took place wearing and tearing, this annular hollow spring ring 64 can inwards extrude the inner circle of annular rubber in order to realize wearing and tearing compensation.

The inner ring of the oil seal piece I61 is of a corrugated inner-outer double-layer structure, the inner ring of the oil seal piece III 63 is of a threaded inner-outer double-layer structure, the inner ring of the oil seal piece I61 is designed into the corrugated inner-outer double-layer structure, the oil seal effect of the oil seal piece and the gear shaft 2 can be greatly improved, specifically, the corrugation is of a V-shaped lip structure, the lip edge deforms under the action of hydraulic pressure during sealing, the lip edge is enabled to cling to the sealing surface to realize the sealing effect, the hydraulic pressure is higher, the lip edge is attached to the sealing surface more tightly, and certain automatic compensation capability is realized after the sealing lip edge is abraded.

The periphery of the gear sleeve 3 is provided with a shaft sleeve 32, a movable sealing element 33 and a static sealing element 34 are clamped between the shaft sleeve 32 and the gear box 1, the inner ring thread direction of the movable sealing element 33 is opposite to the rotation direction of the shaft sleeve 32, a gap is reserved between the inner ring of the movable sealing element 33 and the outer ring of the shaft sleeve 32, the static sealing element 34 is abutted against the outer end part of the movable sealing element 33, on one hand, the movable sealing element 33 is designed to be capable of extruding a flowing space of lubricating oil, namely, the flow rate of the lubricating oil filled in the space formed by the bearing at the periphery of the gear sleeve 3, the gear box 1, the shaft sleeve 32 and the static sealing element 34 is reduced, meanwhile, when the gear sleeve 32 rotates, the lubricating oil is thrown to the inner ring of the movable sealing element 33 under the action of centrifugal force, and as the inner ring thread direction of the movable sealing element 33 is opposite to the rotation direction of the shaft sleeve 32 and the gap is reserved between the inner ring of the movable sealing element 33 and the outer ring of the shaft sleeve 32, the lubricating oil can flow back along the inner ring thread of the movable sealing element 33, further, the contact between the lubricating oil and the static seal 34 is reduced to achieve a sealing effect, and a seal ring is interposed between the sleeve gear 3 and the sleeve 32 to prevent the lubricating oil from leaking between the sleeve gear 3 and the sleeve 32.

One end that gear shaft 2 is located conduction arm 4 is equipped with the hole groove 21 of intercommunication passageway II 53, is equipped with the negative pressure chamber 22 that is used for intercommunication passageway I52 and hole groove 21 between gear shaft 2 and the conduction arm 4, the both ends that negative pressure chamber 22 corresponds hole groove 21 are equipped with oil blanket group 23 respectively, oil blanket group 23 presss from both sides and arranges in between gear shaft 2 and the conduction arm 4, the both ends that conduction arm 4 is located hole groove 21 are equipped with and are used for carrying out spacing jump ring 24 to oil blanket group 23, and through designing twice oil blanket group 23, when oil seal structure 6 became invalid, this oil blanket group 23 also can prevent effectively that lubricating oil from soaking in negative pressure passageway 5.

One end of the main shaft 7, which is close to the gear box 1, is rotationally connected with the partition part 131 through a bearing, one side of the main shaft 7, which is located at the partition part 131, is fixedly provided with a sun wheel 76, the partition part 131 is provided with a plurality of planet wheels 77 in meshing transmission with the sun wheel 76, the planet wheels 77 drive the gear sleeve 3 and the conduction arm 4 to rotate around the gear shaft 2, a lubrication flow channel 133 communicating with cavities 11 at two ends of the partition part 131 is arranged at a position of the partition part 131 corresponding to the planet wheels 77, and the lubrication flow channel 133 is obliquely arranged, so that lubricating oil can smoothly flow into the bearing of the partition part 131.

The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.

Claims (10)

1. The utility model provides a rolling up machine antiseep transmission, includes gear box (1), tooth axle (2) and tooth cover (3), be equipped with in gear box (1) and hold chamber (11), tooth axle (2) fixed mounting is in holding chamber (11), the periphery of tooth axle (2) is located through the bearing housing in tooth cover (3), tooth cover (3) lateral wall is equipped with lubrication passage (31) that the intercommunication holds chamber (11), the one end fixedly connected with conduction arm (4) of gear box (1) are kept away from in tooth cover (3), be formed with negative pressure passageway (5) that switch on each other in gear box (1), tooth axle (2) and conduction arm (4), be equipped with negative pressure controlling means (51) that are linked together with negative pressure passageway (5) on gear box (1), its characterized in that: an oil seal structure (6) is arranged between the gear shaft (2) and the gear sleeve (3), the oil seal structure (6) is positioned between the lubricating channel (31) and the conduction arm (4), the oil seal structure (6) comprises an oil seal I (61), an oil seal II (62) and an oil seal III (63) which are sequentially clamped between the gear shaft (2) and the gear sleeve (3), wherein the inner ring of the oil seal piece III (63) is in threaded connection with the gear shaft (2) and the screwing direction of the threads is the same as the rotating direction of the gear sleeve (3) around the gear shaft (2), the oil seal I (61) and the oil seal III (63) comprise a first annular rubber (611) and a first steel ring framework (612) encapsulated in the first annular rubber (611), the oil seal part II (62) comprises a steel ring framework II (621) and an annular rubber II (622) inserted into the inner ring of the steel ring framework II (621), and the outer diameter of the steel ring framework II (621) is smaller than that of the annular rubber I (611).

2. The anti-leakage transfer device of the cigarette making and plug assembling machine according to claim 1, wherein: the oil seal piece I (61) and the oil seal piece III (63) have annular hollow spring ring (64) in the periphery of the inner circle of integrative injection moulding, the oil seal piece II (62) also have annular hollow spring ring (64) in the periphery of the inner circle of integrative injection moulding.

3. The anti-leakage transfer device of the cigarette making and plug assembling machine according to claim 2, wherein: the inner ring of the oil seal piece I (61) is of a corrugated inner-outer double-layer structure, and the inner ring of the oil seal piece III (63) is of a threaded inner-outer double-layer structure.

4. The anti-leakage transfer device of the cigarette making and plug assembling machine according to claim 1, wherein: the gear box is characterized in that a shaft sleeve (32) is arranged on the periphery of the gear sleeve (3), a movable sealing element (33) and a static sealing element (34) are clamped between the shaft sleeve (32) and the gear box (1), the rotating direction of the inner ring thread of the movable sealing element (33) is opposite to the rotating direction of the shaft sleeve (32), a gap is reserved between the inner ring of the movable sealing element (33) and the outer ring of the shaft sleeve (32), and the static sealing element (34) abuts against the outer end of the movable sealing element (33).

5. The anti-leakage transfer device of the cigarette making and plug assembling machine according to claim 1, wherein: the negative pressure channel (5) comprises a channel I (52) located in the conduction arm (4), a channel II (53) located in the gear shaft (2) and a channel III (54) located in the gear box (1), the channel I (52), the channel II (53) and the channel III (54) are communicated with each other, and the channel III (54) is communicated with the negative pressure control device (51).

6. The anti-leakage transfer device of the cigarette making and plug assembling machine according to claim 5, wherein: the one end that gear shaft (2) are located conduction arm (4) is equipped with hole groove (21) of intercommunication passageway II (53), is equipped with negative pressure chamber (22) that are used for intercommunication passageway I (52) and hole groove (21) between gear shaft (2) and conduction arm (4), the both ends that negative pressure chamber (22) correspond hole groove (21) are equipped with oil blanket group (23) respectively, oil blanket group (23) clamp is arranged in between gear shaft (2) and conduction arm (4).

7. The anti-leakage transfer device of the cigarette making and plug assembling machine according to any one of claims 1 to 6, wherein: gear box (1) is equipped with main shaft (7) for the other end of conduction arm (4), gear box (1) rotates to be connected in main shaft (7), be equipped with oil duct (71) in main shaft (7), oil duct (71) are equipped with oil pipe (72) that extend to holding chamber (11), be formed with the clearance between oil duct (71) and oil pipe (72), be equipped with backflow channel (132) that the intercommunication was held chamber (11) and oil duct (71) in gear box (1), the outer end of main shaft (7) is equipped with oil gallery (73) that communicate oil duct (71).

8. The anti-leakage transfer device of the cigarette making and plug assembling machine according to claim 7, wherein: gear box (1) is including sealed fixed connection's left end lid (12), ring body (13) and right-hand member lid (14), the middle part of ring body (13) is equipped with cuts off portion (131), cut off portion (131) and separate gear box (1) into two and hold chamber (11), backflow channel (132) are for lining up cut off portion (131) and are used for communicateing the passageway that two hold chamber (11).

9. The anti-leakage transfer device of the cigarette making and plug assembling machine according to claim 8, wherein: the device is characterized by further comprising a flow detector (74) and a warning lamp (75), wherein the flow detector (74) is connected to the inlet end of the oil pipe (72), and the flow detector (74) is electrically connected with the warning lamp (75).

10. The anti-leakage transfer device of the cigarette making and plug assembling machine according to claim 9, wherein: the one end that main shaft (7) is close to gear box (1) is passed through the bearing and is connected with partition portion (131) rotation, one side fixed mounting that main shaft (7) are located partition portion (131) has sun gear (76), install on partition portion (131) a plurality of and this sun gear (76) meshing driven planet wheel (77), planet wheel (77) drive tooth cover (3) and conduction arm (4) rotate around tooth axle (2), the position that partition portion (131) corresponds planet wheel (77) is equipped with the lubricated runner (133) that intercommunication partition portion (131) both ends hold chamber (11).

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