CN113280089A

CN113280089A - Rear-mounted speed reduction and speed regulation type permanent magnet coupler

Info

Publication number: CN113280089A
Application number: CN202110693431.0A
Authority: CN
Inventors: 黄忠念; 王琪华; 陈维平
Original assignee: Nanjing Magnet Intelligent Technology Co ltd
Current assignee: Nanjing Magnet Intelligent Technology Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-08-20
Anticipated expiration: 2041-06-22
Also published as: CN113280089B

Abstract

The invention discloses a rear-mounted speed-reducing and speed-regulating permanent magnet coupler, which comprises a box body, a permanent magnet coupler and a speed reducing device, wherein the box body comprises a lower box body and an upper box body, a partition plate is respectively arranged in the lower box body and the upper box body, the lower box body and the upper box body are respectively divided into a coupler mounting part and a speed reducing device mounting part by the partition plate, the permanent magnet coupler is fixedly mounted on the coupler mounting parts in the lower box body and the upper box body, an input shaft of the permanent magnet coupler is exposed out of the box body, an output shaft of the permanent magnet coupler extends into the speed reducing device mounting parts in the lower box body and the upper box body, the speed reducing device is fixedly mounted on the speed reducing device mounting parts in the lower box body and the upper box body, and the speed reducing device is movably connected with the output shaft of the permanent magnet coupler; the transmission ratio of the output shaft of the permanent magnet coupler is controlled by the speed reducer.

Description

Rear-mounted speed reduction and speed regulation type permanent magnet coupler

Technical Field

The invention relates to the field of mechanical transmission, in particular to a rear-mounted speed-reducing and speed-regulating permanent magnet coupler.

Background

At present, in the industries of steel, cement, petrochemical industry and electric power, a circulating fan system formed by a part of high-power motors, speed reducers and centrifugal fans is installed, the general power is large, the motor power is generally between 1000kW and 6300kW, and due to the requirements of efficiency, investment and engineering construction, the general motors adopt 4-level motors, the synchronous rotating speed is 1500r/min, the rated rotating speed of the general fans is 730r/min, and the speed is reduced through 1:2 speed reducers corresponding to the rotating speed of 8-level motors. When the speed-regulating permanent magnet coupler is selected for speed regulation, the optional scheme comprises the following steps of adopting a general speed-regulating permanent magnet coupler to match 1: scheme of speed reducer. But the scheme has the defects of large occupied area, complex cooling and lubricating system, inconvenient operation and maintenance, low working efficiency, large investment and the like.

Disclosure of Invention

The invention aims to solve the technical problem that the invention provides a rear-mounted speed-reducing and speed-regulating permanent magnet coupler aiming at the defects of the prior art, and the rear-mounted speed-reducing and speed-regulating permanent magnet coupler has the advantages of compact equipment structure, small installation occupied area, centralized lubrication, simple and reliable cooling and lubricating system, convenient operation and maintenance, high working efficiency, lower investment and the like, can control the rotating speed of an output shaft of the permanent magnet coupler through the arranged planetary gear sets, and can prolong the service life through the alternative use of the two arranged gear sets.

In order to solve the technical problem, the technical scheme of the invention is realized by the following modes: a rear-mounted speed reduction and regulation type permanent magnet coupler comprises a box body, a permanent magnet coupler, a speed reduction device and an oil pumping cooling device, wherein the box body comprises a lower box body and an upper box body, a partition plate is arranged in each of the lower box body and the upper box body, the lower box body and the upper box body are divided into a coupler mounting part and a speed reduction device mounting part through the partition plate, the permanent magnet coupler is fixedly mounted on the coupler mounting parts of the lower box body and the upper box body, an input shaft of the permanent magnet coupler is exposed out of the box body, an output shaft of the permanent magnet coupler extends into the speed reduction device mounting parts in the lower box body and the upper box body, the speed reduction device is fixedly mounted on the speed reduction device mounting parts in the lower box body and the upper box body, the speed reduction device is movably connected with the output shaft of the permanent magnet coupler, and the oil pumping cooling device is arranged in the speed reduction device mounting part;

the speed reducer comprises a circular fixed disc, a first needle bearing, a triangular fixed disc, a second needle bearing, three gear shafts, a gear ring fixing frame, six third needle bearings, six locking bolts, six planet gears, a sun gear, a U-shaped bracket, a screw rod, a servo motor, a speed reduction output shaft and two fourth needle bearings, wherein one end of the circular fixed disc in the thickness direction is provided with a first circular through hole, the axis of the first circular through hole is superposed with the axis of the circular fixed disc, one end of the circular fixed disc in the thickness direction is provided with a first annular boss in an outward forming mode along the edge of the first circular through hole, one end, close to the circular fixed disc, of the first annular boss is provided with a first limiting step, one end of the triangular fixed disc in the thickness direction is provided with a second circular through hole, and the circle center of the second circular through hole is located at the geometric center of one end of the triangular fixed disc in the thickness direction, a second annular boss is formed on one end of the triangular fixing disc in the thickness direction and outwards along the edge of the second circular through hole, a second limiting step is arranged at one end, close to the triangular fixing disc, of the second annular boss, and a tooth-shaped boss is arranged on the inner wall of the second annular boss; a first fixing seat and a second fixing seat are respectively arranged at two ends of the U-shaped support, a first fixing clip is arranged at the lower end of the first fixing seat, inward-formed first semicircular installation grooves are respectively formed in the first fixing seat and the first fixing clip, the first semicircular installation grooves in the first fixing seat and the first fixing clip are combined into a circular groove, a second fixing clip is arranged at the lower end of the second fixing seat, inward-formed second semicircular installation grooves are respectively formed in the second fixing seat and the second fixing clip, and the second semicircular installation grooves in the second fixing seat and the second fixing clip are combined into a circular groove;

the middle section of each gear shaft along the length direction is provided with a first boss which is molded outwards, the three-in-three group of six planetary gears is divided into two groups of gear sets, three planetary gears in each group of gear sets are respectively arranged on the three gear shafts, the two groups of gear sets are respectively positioned on two sides of the first boss, the planetary gears and the gear shafts are matched with each other through keys and key grooves to synchronously rotate, the six locking bolts are respectively arranged on the three gear shafts, two ends of each gear shaft along the length direction are respectively provided with one locking bolt, and each locking bolt is respectively clung to the corresponding planetary gear; the two ends of each gear shaft along the length direction are respectively provided with a second boss in an outward forming mode, every two of six third needle roller bearings are divided into three groups, each group of two third needle roller bearings are respectively arranged on the second bosses at the two ends of the gear shaft, one end, away from the first annular boss, of the circular fixing disc along the thickness direction is provided with three first bearing grooves formed inwards, the three first bearing grooves are uniformly distributed in the circumferential direction, the three gear shafts are arranged side by side, the third needle roller bearings at the same end of the three gear shafts are respectively embedded into the three first bearing grooves, three vertex angles on one end, away from the second annular boss, of the triangular fixing disc along the thickness direction are respectively provided with three second bearing grooves formed inwards, and the third needle roller bearings at the other ends of the three gear shafts are respectively embedded into the three second bearing grooves; the first needle bearing is sleeved on the first annular boss and abuts against the first limiting step, the second needle bearing is sleeved on the second annular boss and abuts against the second limiting step, the first needle bearing is embedded into the first semicircular mounting grooves in the first fixing seat and the first fixing clamp, and the second needle bearing is embedded into the second semicircular mounting grooves in the second fixing seat and the second fixing clamp;

an output shaft of the permanent magnet coupler penetrates through the first circular through hole, and the axis of the output shaft of the permanent magnet coupler is overlapped with the axis of the first circular through hole;

the gear ring fixing frame is fixedly arranged on the partition plate, the gear ring is fixedly arranged on the gear ring fixing frame, the axis of the gear ring is superposed with the axis of the output shaft of the permanent magnet coupler, the sun gear is fixedly arranged on the output shaft of the permanent magnet coupler, the sun gear and the output shaft of the permanent magnet coupler are matched and synchronously rotated through keys and key grooves, the sun gear is engaged and matched with the six planetary gears, and the six planetary gears are engaged and matched with the gear ring;

a third semicircular mounting groove is formed in one side wall, away from the coupler mounting part, of the upper speed reducer mounting part of the lower box body and the upper box body, the third semicircular mounting grooves in the lower box body and the upper box body are combined into a whole circular groove, a fourth semicircular mounting groove is formed in one side wall, away from the speed reducer mounting part, of the third semicircular mounting groove in the axial direction, and a whole circular groove is formed by combining the fourth semicircular mounting grooves in the lower box body and the upper box body; the middle section of the speed reducing output shaft along the length direction is provided with a second boss, two fourth needle bearings are sleeved on the speed reducing output shaft and are respectively positioned at two sides of the second boss, the two fourth needle bearings are embedded in a third semicircular mounting groove arranged on the lower box body, the two fourth needle bearings are respectively abutted against two side ends of the third semicircular mounting groove along the length direction, one end of the speed reducing output shaft is positioned in the speed reducing device mounting part, one end of the speed reducing output shaft is exposed out of the box body, one end of the speed reducing output shaft positioned in the speed reducing device mounting part is provided with a tooth-shaped groove, the tooth-shaped groove is meshed with the tooth-shaped boss and is connected with the triangular fixing disc in a sliding manner; a first oil seal ring is arranged on one side of the speed reducing output shaft along the length direction, and the first oil seal ring is embedded into a fourth semicircular installation groove in the lower box body;

the upper wall inside the upper box body is inwards formed and provided with a rectangular sliding groove, a through hole penetrating through the upper box body is formed in the rectangular sliding groove along the length direction and at one end far away from the coupler mounting portion, a sealing ring groove is formed in the side wall outside the upper box body and at a position corresponding to the through hole, one end of the screw rod penetrates through the through hole and is rotatably connected with one end, far away from the sealing ring groove, of the rectangular sliding groove through a fifth bearing, the servo motor is fixedly arranged on the side wall outside the upper box body, an output shaft of the servo motor extends into the through hole and is connected with the other end of the screw rod, a second oil seal ring is further arranged on the output shaft of the servo motor, and the second oil seal ring is embedded into the sealing ring groove;

the outside shaping in middle section of U-shaped support is equipped with two rectangle sliders, and the both ends setting of U-shaped support is kept away from to the rectangle slider, and the rectangle slider slides through screw-thread fit and sets up on the lead screw, and sliding fit between rectangle slider and the rectangle spout.

According to the invention, the rotation speed of the output shaft of the permanent magnet coupler is reduced by matching the two sets of gear sets with the sun gear, the two sets of gear sets are alternatively matched with the sun gear by matching the screw rod, the servo motor and the U-shaped bracket, so that the heat dissipation of the gear sets is facilitated, the service life is prolonged, the cooling oil in the installation part of the speed reducer is circulated and irrigated to the gear sets by the oil pumping cooling device, the heat generated during the working of the gear sets is further taken away, and the abrasion during the working of the gear sets is reduced.

The technical scheme of the invention is further defined as follows:

the oil pumping cooling device comprises two oil inlets, a plurality of oil nozzles, a first pipe joint, an oil pump motor, a filter, a plate type oil cooler and a second pipe joint; two oil inlet nozzles are arranged at the bottom end inside the lower box body, the two oil inlet nozzles are connected through a copper pipe, a first pipe joint is arranged on the side wall outside the lower box body, an inlet at one end of the first pipe joint penetrates through the side wall of the lower box body and extends into the lower box body, one end of the first pipe joint extending into the lower box body is communicated with a pipeline between the two oil inlet nozzles through the copper pipe, an oil pump motor, a filter, a plate type oil cooler and a second pipe joint are arranged on the side wall outside the lower box body, an oil inlet of the oil pump motor is connected with the free end of the first pipe joint through the copper pipe, an oil outlet of the oil pump motor is connected with the inlet of the filter through the copper pipe, an outlet of the filter is connected with an oil inlet of the plate type oil cooler through the copper pipe, an oil outlet of the plate type oil cooler is connected with one end of the second pipe joint through the copper pipe, the other end of the second pipe joint penetrates through the side wall of the lower box body and extends into the lower box body, the plurality of oil nozzles are arranged on one side wall, far away from the coupler mounting part, in the speed reducer mounting part, and are arranged corresponding to the gear ring; through oil pump motor and oil feed nozzle cooperation, with the cooling oil pump sending to the filter in the decelerator installation department, through the filter with the interior impurity filtering of cooling oil, rethread plate oil cooler takes away the heat of cooling oil, reduces the temperature of the cooling oil of flowing through plate oil cooler, waters the cooling oil on planetary gear and sun gear through a plurality of diversified the fuel sprayer to take away the heat of planetary gear and sun gear and ring gear, reduce wearing and tearing.

The circuits of the servo motor and the oil pump motor are both electrically connected with a controller, and an external power line is arranged on the controller; the controller controls the start and stop of the servo motor and the oil pump motor, and the operation is simple, convenient and easy.

Cooling oil is arranged in the lower box body; the temperature of the reduction gear is reduced by the cooling oil, and the abrasion of the reduction gear is reduced.

The thickness of the planet gear along the axial direction is m, the thickness of the sun gear along the axial direction is n, the thickness of the gear ring along the axial direction is p, the thickness of the first boss along the axial direction is q, m = q, and n = p =2 m; through the set data relation, when the two gear sets are alternated, the two gear sets are meshed and matched with different positions of the sun gear and the gear ring, so that the load of working parts of the sun gear and the gear ring is reduced, and the service lives of the sun gear and the gear ring are prolonged.

The invention has the beneficial effects that: according to the technical scheme, the speed reduction and speed regulation type permanent magnet coupler is matched with a sun gear through two sets of gear sets, the rotating speed of an output shaft of the permanent magnet coupler is reduced, the two sets of gear sets are matched with the sun gear alternately through a screw rod, a servo motor and a U-shaped support, so that the heat dissipation of the gear sets is facilitated, the service life is prolonged, the cooling oil in a mounting part of a speed reduction device is pumped to a filter through the matching of an oil pump motor and an oil inlet nozzle, impurities in the cooling oil are filtered through the filter, the heat of the cooling oil is taken away through a plate type oil cooler, the temperature of the cooling oil flowing through the plate type oil cooler is reduced, and the cooling oil is poured onto the planet gear and the sun gear in multiple directions through a plurality of oil nozzles, so that the heat of the planet gear, the sun gear and a gear ring is taken away, and the abrasion is reduced; the controller controls the start and stop of the servo motor and the oil pump motor, so that the operation is simple, convenient and easy; through the set data relation, when the two gear sets are alternated, the two gear sets are meshed and matched with different positions of the sun gear and the gear ring, so that the load of working parts of the sun gear and the gear ring is reduced, and the service lives of the sun gear and the gear ring are prolonged.

Drawings

FIG. 1 is an axial view of the overall construction of the present invention;

FIG. 2 is an exploded front right axial half-section view of the speed reduction unit of the present invention;

FIG. 3 is an exploded fragmentary view in left rear axial half section of the speed reduction unit of the present invention;

FIG. 4 is a front view of the present invention;

FIG. 5 is a cross-sectional view taken at A-A of FIG. 4;

FIG. 6 is an enlarged view of a portion of FIG. 5 at B;

FIG. 7 is a top view of the reduction gear of the present invention;

wherein: 1-a permanent magnet coupler, 1 a-an input shaft, 1 b-an output shaft, 2-a lower box, 3-an upper box, 4-a partition plate, 4 a-a limit hole, 5-a coupler mounting part, 6-a speed reducer mounting part, 7-a circular fixed disc, 7 a-a first bearing groove, 7 b-a first circular through hole, 7 c-a first annular boss, 7 d-a first limit step, 8-a first needle bearing, 9-a triangular fixed disc, 9 a-a second bearing groove, 9 b-a second circular through hole, 9 c-a second annular boss, 9 d-a second limit step, 9 e-a toothed boss, 10-a second needle bearing, 11-a gear shaft, 11 a-a first boss, 11 b-a second boss, 12-a gear ring, 13-a gear ring fixing frame, 14-a third needle bearing, 15-a locking bolt, 16-a planet gear, 17-a sun gear, 18-a U-shaped bracket, 18 a-a rectangular sliding block, 19-a servo motor, 21-a speed reduction output shaft, 21 a-a second boss, 21 b-a tooth-shaped groove, 22-a fourth needle bearing, 23-a first fixing seat, 24-a second fixing seat, 25-a first fixing clamp, 26-a first semicircle mounting groove, 27-a second fixing clamp, 28-a second semicircle mounting groove, 29-a third semicircle mounting groove, 30-a fourth semicircle mounting groove, 30 a-a first oil seal ring, 31-a rectangular sliding groove, 32-a through hole, 33-a seal ring groove, 34-a fifth bearing, 35-a second oil seal ring, 36-an oil inlet nozzle, 37-an oil nozzle, 38-a first pipe joint, 39-an oil pump motor, 40-a filter, 41-a plate type oil cooler, 42-a second pipe joint and 43-a controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings in the embodiments of the present invention.

It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements can be directly connected or indirectly connected through an intermediate medium, and the two elements can be communicated with each other, so that the specific meaning of the terms in the invention can be understood by those skilled in the art.

Example 1

As shown in fig. 1, 2 and 3, a rear-mounted speed-reducing and speed-regulating permanent magnet coupler comprises a box body, a permanent magnet coupler 1, a speed reducing device and an oil pumping cooling device, wherein the box body comprises a lower box body 2 and an upper box body 3, a partition plate 4 is respectively arranged in the lower box body 2 and the upper box body 3, the lower box body 2 and the upper box body 3 are respectively divided into a coupler mounting part 5 and a speed reducing device mounting part 6 by the partition plate 4, the permanent magnet coupler 1 is fixedly mounted on the coupler mounting parts 5 of the lower box body 2 and the upper box body 3, an input shaft 1a of the permanent magnet coupler 1 is exposed out of the box body, a coupler output shaft 1b of the permanent magnet coupler 1 extends into the speed reducing device mounting parts 6 in the lower box body 2 and the upper box body 3, the speed reducing device is fixedly mounted on the speed reducing device mounting parts 6 in the lower box body 2 and the upper box body 3, and the speed reducing device is movably connected with a coupler output shaft 1b of the permanent magnet coupler 1, the oil pumping cooling device is arranged in the speed reducer mounting part 6, cooling oil is arranged in the speed reducer mounting part 6, and the oil pumping cooling device pumps and waters the cooling oil in the speed reducer mounting part 6 to the speed reducer;

the speed reducer comprises a circular fixing disc 7, a first needle bearing 8, a triangular fixing disc 9, a second needle bearing 10, three gear shafts 11, a gear ring 12, a gear ring fixing frame 13, six third needle bearings 14, six locking bolts 15, six planet gears 16, a sun gear 17, a U-shaped support 18, a screw rod 19, a servo motor 20, a speed reduction output shaft 21 and two fourth needle bearings 22, wherein one end of the circular fixing disc 7 in the thickness direction is provided with a first circular through hole 7b, the axis of the first circular through hole 7b is superposed with the axis of the circular fixing disc 7, one end of the circular fixing disc 7 in the thickness direction is provided with a first annular boss 7c in a forming mode outwards along the edge of the first circular through hole 7b, one end of the first annular boss 7c close to the circular fixing disc 7 is provided with a first limiting step 7d, one end of the triangular fixing disc 9 in the thickness direction is provided with a second circular through hole 9b, the circle center of the second circular through hole 9b is located at the geometric center of one end of the triangular fixed disk 9 in the thickness direction, a second annular boss 9c is formed on one end of the triangular fixed disk 9 in the thickness direction and outwards along the edge of the second circular through hole 9b, a second limiting step 9d is arranged at one end, close to the triangular fixed disk 9, of the second annular boss 9c, and a tooth-shaped boss 9e is arranged on the inner wall of the second annular boss 9 c; a first fixing seat 23 and a second fixing seat 24 are respectively arranged at two ends of the U-shaped support 18, a first fixing clip 25 is arranged at the lower end of the first fixing seat 23, inward-formed first semicircular installation grooves 26 are respectively arranged on the first fixing seat 23 and the first fixing clip 25, the first semicircular installation grooves 26 on the first fixing seat 23 and the first fixing clip 25 are combined into a circular groove, a second fixing clip 27 is arranged at the lower end of the second fixing seat 24, inward-formed second semicircular installation grooves 28 are respectively arranged on the second fixing seat 24 and the second fixing clip 27, and the second semicircular installation grooves 28 on the second fixing seat 24 and the second fixing clip 27 are combined into a circular groove;

a first boss 11a which is formed outwards is arranged at the middle section of each gear shaft 11 along the length direction, three groups of six planetary gears 16 are divided into two groups of gear sets, three planetary gears 16 in each group of gear sets are respectively arranged on the three gear shafts 11, the two groups of gear sets are respectively positioned at two sides of the first boss 11a, the planetary gears 16 and the gear shafts 11 are matched and synchronously rotate through keys and key grooves, when the planetary gear 16 at one side rotates on each gear shaft 11, the gear at the other side is driven to synchronously rotate, and when the U-shaped support 18 slides, the planetary gear 16 which is not meshed with the gear ring 12 can seamlessly slide into the gear ring 12 and is meshed and matched with the sun gear 17;

the six locking bolts 15 are respectively arranged on the three gear shafts 11, two ends of each gear shaft 11 along the length direction are respectively provided with one locking bolt 15, each locking bolt 15 is respectively clung to the corresponding planetary gear 16, and the locking bolts 15 enable the planetary gear 16 to be axially fixed; two ends of each gear shaft 11 along the length direction are respectively provided with a second boss 11b in an outward forming mode, six third needle roller bearings 14 are grouped into three groups in pairs, each group of two third needle roller bearings 14 are respectively arranged on the second bosses 11b at the two ends of the gear shaft 11, one end of the circular fixing disc 7 far away from the first annular boss 7c along the thickness direction is provided with three first bearing grooves 7a formed inwards, the three first bearing grooves 7a are evenly distributed along the circular circumference direction, the three gear shafts 11 are arranged side by side, the third needle roller bearings 14 at the same end of the three gear shafts 11 are respectively embedded into the three first bearing grooves 7a, the triangular fixing disc 9 is respectively provided with three second bearing grooves 9a formed inwards at three top angles on one end of the triangular fixing disc 9 along the thickness direction far away from the second annular boss 9c, the third needle roller bearings 14 at the other ends of the three gear shafts 11 are respectively embedded into the three second bearing, the third needle bearing 14 enables the gear shaft 11 to freely rotate between the circular fixed disk 7 and the triangular fixed disk 9;

first bearing 8 is located on first annular boss 7c and is supported with first spacing step 7d, second bearing 10 is located on second annular boss 9c and is supported with second spacing step 9d, first bearing 8 imbeds in the first semicircle mounting groove 26 on first fixing base 23 and the first fixing clip 25, second bearing 10 imbeds in the second semicircle mounting groove 28 on second fixing base 24 and the second fixing clip 27, first fixing base 23, first fixing clip 25, second fixing base 24 and the cooperation of second fixing clip 27, restriction circular fixed disk 7 and the axial slip of triangle fixed disk 9.

As shown in fig. 2 and 3, the coupler output shaft 1b of the permanent magnet coupler 1 passes through the first circular through hole 7b, and the axis of the coupler output shaft 1b of the permanent magnet coupler 1 coincides with the axis of the first circular through hole 7 b.

The gear ring fixing frame 13 is fixedly arranged on the partition plate 4, the gear ring 12 is fixedly arranged on the gear ring fixing frame 13, the axis of the gear ring 12 is overlapped with the axis of the coupler output shaft 1b of the permanent magnet coupler 1, the sun gear 17 is fixedly arranged on the coupler output shaft 1b of the permanent magnet coupler 1, the sun gear 17 and the coupler output shaft 1b of the permanent magnet coupler 1 are matched and synchronously rotate through keys and key grooves, the sun gear 17 is engaged with the six planetary gears 16, and the six planetary gears 16 are engaged with the gear ring 12; when the sun gear 17 rotates, the set of planetary gears 16 are driven to rotate, when the planetary gears 16 rotate, the planetary gears 16 are limited by the gear ring 12, the set of planetary gears 16 rotate at a constant speed along the circumferential direction, meanwhile, the circular fixed disk 7 and the triangular fixed disk 9 are driven to rotate, the triangular fixed disk 9 and the speed reducing output shaft 21 are meshed with the tooth-shaped boss 9e through the tooth-shaped groove 21b to rotate synchronously, and then the speed reducing output shaft 21 is driven to rotate when the triangular fixed disk 9 rotates.

As shown in fig. 1 and 4, a third semicircular mounting groove 29 is formed outwardly on a side wall of the reduction gear mounting portion 6 of the lower case 2 and the upper case 3 away from the coupler mounting portion 5, the third semicircular mounting grooves 29 on the lower case 2 and the upper case 3 are combined into a circular groove, a fourth semicircular mounting groove 30 is formed on a side wall of the third semicircular mounting groove 29 axially away from the reduction gear mounting portion 6, and the fourth semicircular mounting grooves 30 on the lower case 2 and the upper case 3 are combined into a circular groove; the middle section of the speed reducing output shaft 21 along the length direction is provided with a second boss 21a, two fourth needle roller bearings 22 are all sleeved on the speed reducing output shaft 21, the two fourth needle roller bearings 22 are respectively positioned at two sides of the second boss 21a, the two fourth needle roller bearings 22 are all embedded in a third semicircular mounting groove 29 arranged on the lower box body 2, the two fourth needle roller bearings 22 are respectively abutted against two side ends of the third semicircular mounting groove 29 along the length direction, one end of the speed reducing output shaft 21 is positioned in the speed reducing device mounting part 6, one end of the speed reducing output shaft is exposed out of the box body, one end of the speed reducing output shaft 21 positioned in the speed reducing device mounting part 6 is provided with a tooth-shaped groove 21b, the tooth-shaped groove 21b is engaged with the tooth-shaped boss 9e, and the speed reducing output shaft 21 is in sliding connection with the triangular fixing disc 9; a first oil seal ring 30a is arranged on one side of the speed reducing output shaft 21 along the length direction, the first oil seal ring 30a is embedded into a fourth semicircular installation groove 30 on the lower box body 2, and the first oil seal ring 30a prevents cooling oil in the speed reducing device installation part 6 from leaking outwards; the two fourth needle bearings 22 are matched with the speed reduction output shaft 21, and the two fourth needle bearings 22 are matched with the fourth semicircular mounting groove 30, so that the speed reduction output shaft 21 can be axially fixed, and the speed reduction output shaft 21 can rotate in the fourth semicircular mounting groove 30.

The upper wall inside the upper box body 3 is inwards formed and provided with a rectangular sliding groove 31, one end, away from the coupler mounting part 5, of the rectangular sliding groove 31 in the length direction is provided with a through hole 32 penetrating through the upper box body 3, a sealing ring groove 33 is arranged on the side wall outside the upper box body 3 and in a position corresponding to the through hole 32, one end of the screw rod 19 penetrates through the through hole 32 and is rotatably connected with one end, away from the sealing ring groove 33, of the rectangular sliding groove 31 through a fifth bearing 34, the servo motor 20 is fixedly arranged on the side wall outside the upper box body 3, an output shaft of the servo motor 20 extends into the through hole 32 and is connected with the other end of the screw rod 19, a second oil sealing ring 35 is further arranged on the output shaft of the servo motor 20, the second oil sealing ring 35 is embedded into the sealing ring groove 33, and the second oil sealing ring 35 can prevent cooling oil in the speed reducer mounting part 6 from leaking outwards; two rectangular sliding blocks 18a are formed outwards in the middle section of the U-shaped support 18, the rectangular sliding blocks 18a are arranged at two ends, far away from the U-shaped support 18, of the rectangular sliding blocks 18a, the rectangular sliding blocks 18a are arranged on the screw rod 19 in a sliding mode through threaded fit, and the rectangular sliding blocks 18a are in sliding fit with the rectangular sliding grooves 31; an output shaft of the servo motor 20 rotates to drive the screw rod 19 to rotate, when the screw rod 19 rotates, the U-shaped support 18 slides along the screw rod 19 through being in threaded fit with the rectangular sliding block 18a, and when the U-shaped support 18 slides, the two groups of planet gears 16 are driven to slide, so that the two groups of planet gears 16 are alternately matched with the sun gear 17 and the gear ring 12; the controller 43 controls the servo motor 20 to start each time the input source of the permanent magnet coupler 1 stops working, so that the two sets of planet gears 16 alternate once.

As shown in fig. 7, the pump oil cooling device includes two oil feed nozzles 36, a plurality of oil jet nozzles 37, a first pipe joint 38, an oil pump motor 39, a filter 40, a plate oil cooler 41, and a second pipe joint 42; two oil inlets 36 are arranged at the bottom end inside the lower box body 2, the two oil inlets 36 are connected through a copper pipe, a first pipe joint 38 is arranged on the side wall outside the lower box body 2, one end inlet of the first pipe joint 38 penetrates through the side wall of the lower box body 2 and extends into the lower box body 2, one end of the first pipe joint 38 extending into the lower box body 2 is communicated with a pipeline between the two oil inlets 36 through a copper pipe, an oil pump motor 39, a filter 40, a plate type oil cooler 41 and a second pipe joint 42 are arranged on the side wall outside the lower box body 2, an oil inlet of the oil pump motor 39 is connected with the free end of the first pipe joint 38 through a copper pipe, an oil outlet of the oil pump motor 39 is connected with an inlet of the filter 40 through a copper pipe, an outlet of the filter 40 is connected with an oil inlet of the plate type oil cooler 41 through a copper pipe, an oil outlet of the plate type oil cooler 41 is connected with one end of the second pipe joint 42 through a copper pipe, the other end of the second pipe joint 42 penetrates through the side wall of the lower box body 2 and extends into the lower box body 2, the plurality of oil nozzles 37 are arranged on one side wall, far away from the coupler mounting part 5, in the speed reducer mounting part 6, the plurality of oil nozzles 37 are all arranged corresponding to the gear ring 12, and the plurality of oil nozzles 37 are all connected with one end, extending into the lower box body 2, of the second pipe joint 42 through a copper pipe; after the oil pump motor 39 is started, the cooling oil in the speed reducer mounting part 6 is pumped out through the oil inlet nozzle 36 by negative pressure and is pumped to the filter 40, impurities in the cooling oil flowing through are filtered by the filter 40, the filtered cooling oil is pumped to the plate oil cooler 41, heat carried by the flowing cooling oil is exchanged with the outside through the plate oil cooler 41, the temperature of the flowing cooling oil is reduced, the cooling oil is transmitted to the oil spray nozzles 37 through the second pipe joints 42, and the cooling oil is poured to the speed reducer in multiple directions by the oil spray nozzles 37.

The circuits of the servo motor 20 and the oil pump motor 39 are both electrically connected with a controller 43, an external power line is arranged on the controller 43, and the external power line is connected with an external power supply to provide electric energy; the controller 43 controls the servo motor 20 and the oil pump motor 39 to start and stop, a coded control program is arranged in the controller 43, the servo motor 20 is controlled to rotate forwards and backwards, the U-shaped support 18 slides on the screw rod 19 in a circulating mode, and the two groups of planetary gears 16 are alternately matched with the sun gear 17 and the gear ring 12.

Cooling oil is arranged in the lower box body 2.

The thickness of the pinion gear 16 in the axial direction is m, the thickness of the sun gear 17 in the axial direction is n, the thickness of the ring gear 12 in the axial direction is p, and the thickness of the first boss 11a in the axial direction is q, m = q, n = p =2 m.

The using process of the embodiment is as follows: the servo motor 20 and the oil pump motor 39 are controlled to start through the controller 43, the input shaft 1a of the permanent magnet coupler 1 is connected with a transmission source, the input shaft 1a is driven to rotate by the transmission source, the sun gear 17 is driven to rotate by the coupler output shaft 1b, the sun gear 17 drives a set of planetary gears 16 which are currently meshed with the sun gear 17 to rotate, when the planetary gears 16 rotate, the planetary gears 16 are limited by the gear ring 12, the set of planetary gears 16 rotate at a constant speed along the circumferential direction, meanwhile, the circular fixed disk 7 and the triangular fixed disk 9 are driven to rotate, the triangular fixed disk 9 and the speed reduction output shaft 21 are meshed with the toothed boss 9e through the toothed groove 21b to rotate synchronously, and the speed reduction output shaft 21 is driven to rotate when the triangular fixed disk 9 rotates;

when the input source of the permanent magnet coupler 1 stops working, the controller 43 can control the servo motor 20 to start, the output shaft of the servo motor 20 rotates to drive the screw rod 19 to rotate, the screw rod 19 rotates and is in threaded fit with the rectangular sliding block 18a to enable the U-shaped support 18 to slide along the screw rod 19, the U-shaped support 18 slides to drive the two groups of planetary gears 16 to slide, the two groups of planetary gears 16 are enabled to be alternately matched with the sun gear 17 and the gear ring 12, and when the input source of the permanent magnet coupler 1 stops working next time, next alternation is carried out again, and the circulation is repeated;

after the oil pump motor 39 is started, the cooling oil in the speed reducer mounting part 6 is pumped out through the oil inlet nozzle 36 by negative pressure and is pumped to the filter 40, impurities in the cooling oil flowing through are filtered by the filter 40, the filtered cooling oil is pumped to the plate oil cooler 41, heat carried by the cooling oil flowing through is exchanged with the outside through the plate oil cooler 41, the temperature of the flowing cooling oil is reduced, the cooling oil is transmitted to the oil spray nozzles 37 through the second pipe joints 42, and the oil spray nozzles 37 irrigate the speed reducer in multiple directions.

The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modifications made on the basis of the technical scheme according to the technical idea of the present invention fall within the protection scope of the present invention.

Claims

1. A rear-mounted speed-reducing and speed-regulating permanent magnet coupler is characterized by comprising a box body, a permanent magnet coupler (1), a speed reducing device and an oil pumping cooling device, wherein the box body comprises a lower box body (2) and an upper box body (3), a partition plate (4) is arranged in each of the lower box body (2) and the upper box body (3), the lower box body (2) and the upper box body (3) are respectively internally divided into a coupler mounting part (5) and a speed reducing device mounting part (6) through the partition plate (4), the permanent magnet coupler (1) is fixedly mounted on the coupler mounting parts (5) of the lower box body (2) and the upper box body (3), a coupler input shaft (1 a) of the permanent magnet coupler (1) is exposed out of the box body, a coupler output shaft (1 b) of the permanent magnet coupler (1) extends into the speed reducing device mounting parts (6) in the lower box body (2) and the upper box body (3), and the speed reducing device is fixedly mounted on the mounting parts (6) in the lower box body (2) and the upper box body (3), the speed reducing device is movably connected with a coupler output shaft (1 b) of the permanent magnet coupler (1), and the oil pumping cooling device is arranged in the speed reducing device mounting part (6);

the speed reducer comprises a circular fixed disc (7), a first needle bearing (8), a triangular fixed disc (9), a second needle bearing (10), three gear shafts (11), a gear ring (12), a gear ring fixing frame (13), six third needle bearings (14), six locking bolts (15), six planetary gears (16), a sun gear (17), a U-shaped support (18), a screw rod (19), a servo motor (20), a speed reduction output shaft (21) and two fourth needle bearings (22), wherein one end of the circular fixed disc (7) in the thickness direction is provided with a first circular through hole (7 b), the axis of the first circular through hole (7 b) is overlapped with the axis of the circular fixed disc (7), one end of the circular fixed disc (7) in the thickness direction is provided with a first annular boss (7 c) in an outward forming mode along the edge of the first circular through hole (7 b), one end, close to the circular fixing disk (7), of the first annular boss (7 c) is provided with a first limiting step (7 d), one end, in the thickness direction, of the triangular fixing disk (9) is provided with a second circular through hole (9 b), the circle center of the second circular through hole (9 b) is located at the geometric center of one end, in the thickness direction, of the triangular fixing disk (9), one end, in the thickness direction, of the triangular fixing disk (9) is provided with a second annular boss (9 c) in an outward forming mode along the edge of the second circular through hole (9 b), one end, close to the triangular fixing disk (9), of the second annular boss (9 c) is provided with a second limiting step (9 d), and the inner wall of the second annular boss (9 c) is provided with a tooth-shaped boss (9 e); a first fixing seat (23) and a second fixing seat (24) are respectively arranged at two ends of the U-shaped support (18), a first fixing clamp (25) is arranged at the lower end of the first fixing seat (23), inward-formed first semicircular installation grooves (26) are respectively formed in the first fixing seat (23) and the first fixing clamp (25), a circular groove is formed by combining the first semicircular installation grooves (26) in the first fixing seat (23) and the first semicircular installation grooves (25), a second fixing clamp (27) is arranged at the lower end of the second fixing seat (24), inward-formed second semicircular installation grooves (28) are respectively formed in the second fixing seat (24) and the second fixing clamp (27), and a circular groove is formed by combining the second semicircular installation grooves (28) in the second fixing seat (24) and the second semicircular installation grooves (28) in the second fixing clamp (27);

the middle section of each gear shaft (11) along the length direction is provided with a first boss (11 a) which is formed outwards, three or three of the six planetary gears (16) are divided into two groups of gear sets, three planetary gears (16) in each group of gear sets are respectively arranged on the three gear shafts (11), the two groups of gear sets are respectively positioned at two sides of the first boss (11 a), the planetary gears (16) and the gear shafts (11) are matched with each other through keys and key grooves to rotate synchronously, six locking bolts (15) are respectively arranged on the three gear shafts (11), two ends of each gear shaft (11) along the length direction are respectively provided with one locking bolt (15), and each locking bolt (15) is respectively clung to the corresponding planetary gear (16); two ends of each gear shaft (11) along the length direction are respectively provided with a second boss (11 b) in an outward forming mode, every two of six third needle roller bearings (14) are divided into three groups, each group of two third needle roller bearings (14) are respectively arranged on the second bosses (11 b) at the two ends of the gear shaft (11), one end, away from the first annular boss (7 c), of the circular fixing disc (7) along the thickness direction is provided with three first bearing grooves (7 a) in an inward forming mode, the three first bearing grooves (7 a) are uniformly distributed in the circular circumferential direction, the three gear shafts (11) are arranged side by side, the third needle roller bearings (14) at the same end of the three gear shafts (11) are respectively embedded into the three first bearing grooves (7 a), the triangular fixing disc (9) along the thickness direction and at three vertex angles at one end, away from the second annular boss (9 c), are respectively provided with three second bearing grooves (9 a) in an inward forming mode, third needle roller bearings (14) at the other ends of the three gear shafts (11) are respectively embedded into the three second bearing grooves (9 a); the first needle bearing (8) is sleeved on the first annular boss (7 c) and abuts against the first limiting step (7 d), the second needle bearing (10) is sleeved on the second annular boss (9 c) and abuts against the second limiting step (9 d), the first needle bearing (8) is embedded in a first semicircular mounting groove (26) on the first fixing seat (23) and the first fixing clamp (25), and the second needle bearing (10) is embedded in a second semicircular mounting groove (28) on the second fixing seat (24) and the second fixing clamp (27);

the coupler output shaft (1 b) of the permanent magnet coupler (1) penetrates through the first circular through hole (7 b), and the axis of the coupler output shaft (1 b) of the permanent magnet coupler (1) is overlapped with the axis of the first circular through hole (7 b);

the gear ring fixing frame (13) is fixedly arranged on the partition plate (4), the gear ring (12) is fixedly arranged on the gear ring fixing frame (13), the axis of the gear ring (12) is overlapped with the axis of the coupler output shaft (1 b) of the permanent magnet coupler (1), the sun gear (17) is fixedly arranged on the coupler output shaft (1 b) of the permanent magnet coupler (1), the sun gear (17) and the coupler output shaft (1 b) of the permanent magnet coupler (1) are matched and synchronously rotated through keys and key grooves, the sun gear (17) and six planetary gears (16) are in meshing fit, and the six planetary gears (16) are in meshing fit with the gear ring (12);

a third semicircular mounting groove (29) is formed outwards on one side wall of the upper speed reducer mounting part (6) of the lower box body (2) and the upper box body (3) far away from the coupler mounting part (5), the third semicircular mounting grooves (29) on the lower box body (2) and the upper box body (3) are combined into a circular groove, a fourth semicircular mounting groove (30) is formed in one side wall of the third semicircular mounting groove (29) far away from the speed reducer mounting part (6) along the axial direction, and the fourth semicircular mounting grooves (30) on the lower box body (2) and the upper box body (3) are combined into a circular groove; a second boss (21 a) is arranged at the middle section of the speed reducing output shaft (21) along the length direction, the two fourth needle roller bearings (22) are sleeved on the speed reduction output shaft (21), and two fourth needle bearings (22) are respectively positioned at two sides of the second boss (21 a), the two fourth needle bearings (22) are embedded in a third semicircular mounting groove (29) arranged on the lower box body (2), and two fourth needle bearings (22) are respectively abutted against the two side ends of the third semicircular mounting groove (29) along the length direction, one end of the speed reduction output shaft (21) is positioned in the speed reduction device mounting part (6), and the other end is exposed out of the box body, and one end of the speed reducing output shaft (21) positioned in the speed reducing device mounting part (6) is provided with a tooth-shaped groove (21 b), the tooth-shaped groove (21 b) is meshed and matched with the tooth-shaped boss (9 e), the speed reduction output shaft (21) is in sliding connection with the triangular fixed disc (9); a first oil seal ring (30 a) is arranged on one side of the speed reducing output shaft (21) along the length direction, and the first oil seal ring (30 a) is embedded into a fourth semicircular installation groove (30) in the lower box body (2);

a rectangular sliding groove (31) is formed inwards on the upper wall in the upper box body (3), a through hole (32) penetrating through the upper box body (3) is formed in one end, far away from the coupler mounting part (5), of the rectangular sliding groove (31) along the length direction, a sealing ring groove (33) is arranged on the side wall of the outer part of the upper box body (3) and at the position corresponding to the through hole (32), one end of the screw rod (19) passes through the through hole (32) and is rotatably connected with one end of the rectangular sliding groove (31) far away from the sealing ring groove (33) through a fifth bearing (34), the servo motor (20) is fixedly arranged on the side wall outside the upper box body (3), and the output shaft of the servo motor (20) extends into the through hole (32) and is connected with the other end of the screw rod (19), a second oil seal ring (35) is further arranged on an output shaft of the servo motor (20), and the second oil seal ring (35) is embedded into the seal ring groove (33);

the middle section of U-shaped support (18) outwards the shaping be equipped with two rectangle slider (18 a), the both ends setting of U-shaped support (18) are kept away from in rectangle slider (18 a), and rectangle slider (18 a) slide through screw-thread fit and set up on lead screw (19), and sliding fit between rectangle slider (18 a) and rectangle spout (31).

2. The rear-mounted speed reduction and speed regulation type permanent magnet coupler according to claim 1, characterized in that: the oil pumping cooling device comprises two oil inlets (36), a plurality of oil nozzles (37), a first pipe joint (38), an oil pump motor (39), a filter (40), a plate type oil cooler (41) and a second pipe joint (42); the two oil inlet nozzles (36) are arranged at the bottom end inside the lower box body (2), the two oil inlet nozzles (36) are connected through a copper pipe, a first pipe joint (38) is arranged on the side wall outside the lower box body (2), an inlet at one end of the first pipe joint (38) penetrates through the side wall of the lower box body (2) and extends into the lower box body (2), one end of the first pipe joint (38) extending into the lower box body (2) is communicated with the two oil inlet nozzles (36) through a pipeline between the copper pipe, an oil pump motor (39), a filter (40), a plate type oil cooler (41) and a second pipe joint (42) are arranged on the side wall outside the lower box body (2), an oil inlet of the oil pump motor (39) is connected with the free end of the first pipe joint (38) through a copper pipe, an oil outlet of the oil pump motor (39) is connected with an inlet of the filter (40) through a copper pipe, an outlet of the filter (40) is connected with an oil inlet of the plate type oil cooler (41) through a copper pipe, the oil-out of plate-type oil cooler (41) passes through the copper pipe and links to each other with the one end of second coupling (42), the other end of second coupling (42) passes down the lateral wall of box (2) and stretches into down in box (2), a plurality of fuel sprayer (37) set up in decelerator installation department (6) inside keep away from on the lateral wall of coupler installation department (5), and a plurality of fuel sprayer (37) all correspond ring gear (12) and set up, and a plurality of fuel sprayer (37) all stretch into the one end in box (2) through copper pipe and second coupling (42) and link to each other down.

3. The rear-mounted speed reduction and speed regulation type permanent magnet coupler according to claim 1, characterized in that: the servo motor (20) and the oil pump motor (39) are electrically connected with a controller (43), and an external power line is arranged on the controller (43).

4. The rear-mounted speed reduction and speed regulation type permanent magnet coupler according to claim 1, characterized in that: and cooling oil is arranged in the lower box body (2).

5. The rear-mounted speed reduction and speed regulation type permanent magnet coupler according to claim 1, characterized in that: the thickness of the planetary gear (16) in the axial direction is m, the thickness of the sun gear (17) in the axial direction is n, the thickness of the ring gear (12) in the axial direction is p, and the thickness of the first boss (11 a) in the axial direction is q, m = q, n = p =2 m.