WO2003006845A1

WO2003006845A1 - A type of speed reducer or speed-varying device with sprocket-wheel drive assembly

Info

Publication number: WO2003006845A1
Application number: PCT/CN2001/001165
Authority: WO
Inventors: Ganxu Zhou
Original assignee: Ganxu Zhou
Priority date: 2001-07-09
Filing date: 2001-07-09
Publication date: 2003-01-23
Also published as: CN1262772C; CN1461391A

Abstract

The present invention relates to a type of speed reducer or speed-varying device with sprocket-wheel drive assembly. It consists of a single or double row of sprocket-wheel drive assemblies connected with a single or double row of planetary gear mechanisms of high-speed output. The maximum torque of such a sprocket-wheel speed reducer can reach to 7840 KN-m. Through the medium of a sprocket-wheel speed-varying device, it is possible to control a high voltage equipment with a small power controlling motor. The device of present invention has advantages of high load capability, compact structure, smooth running, easy maintenance, long service life and high efficiency. It can be used as a sprocket-wheel speed reducer in heavy-duty machinery like scraper, and in fluid transport equipment, for example, pump or blower system.

Description

Star wheel reducer or governor using star wheel transmission component

The present invention relates to the technical field of gear transmissions, and in particular, to a star gear reducer or governor (a star gear governor also known as a "multifunctional star gear reducer") using a double-row or single-row star gear transmission assembly.

Background technique

The present inventors have described the speed reduction mechanism using a double-row star gear transmission in the patent specifications of application numbers "96118189.3" and "01249209.4" and on page 10 of the patent specification application number "98112433.X", but It is not comprehensive enough; the patent specification with the application number "98112433.X" also describes the shortcomings of using a single-row star gear transmission assembly combined star speed governor.

Object of the invention

The present invention aims to overcome the above-mentioned shortcomings, thereby providing a high-capacity star-wheel reducer or governor using a double-row star-wheel drive assembly and a star-wheel reducer or a widely-used star-wheel reducer or Governor.

Summary of the Invention

The object of the present invention is achieved as follows:

1. According to the design principle of making full use of the effective circle area, the single-row star-wheel drive assembly series is first universalized and standardized. The single-row star-wheel drive assembly consists of a row of n as a torque and speed transmission mechanism-by high load capacity Bearing and double crank (double eccentric) rolling star wheel combined with a star wheel shaft, two planetary gears with exactly the same technical parameters, a double crank eccentric sleeve, n supporting shafts and a planet carrier made up of front and rear supporting disks, and a planet carrier The internal gears are combined; the two planetary gears are 180 ° symmetrical and mesh with the internal gears at the same time. (Note: The n rolling star wheels and n supporting shafts on the single-row or double-row star gear transmission assembly are distributed on the center circle with diameter D _z and diameter D _x , respectively.)

2. The two single-row star wheel transmission assemblies that have achieved generalization and standardization use an intermediate support disk and n long support shafts are fastened and connected in parallel to form an integrated structure to form a double-row star wheel transmission. Module, each model and specification of the single-row star-wheel drive assembly series is connected in parallel as described above to form a double-row star-wheel drive assembly series, and its bearing capacity is 0.75 to 1 times higher than that of the single-row star-wheel drive assembly series.

3. According to the design principle of making full use of the effective circle, design the planetary gear transmission unit that matches the bearing capacity of the single-row star gear transmission assembly, and realize serialization, generalization and standardization; the single-row planetary gear drive unit consists of a floating sun gear , N rotatable planetary gears, a planet carrier with n support shafts and n force transmission shafts for fastening the front and rear support discs together, and a rotatable internal gear.

4. In the same way, two single-row planetary gear transmission units that have achieved universalization and standardization are firmly connected in parallel to form a double-row planetary gear transmission unit series.

5. According to the design method of making full use of the effective circle, design the high-speed output planetary gear transmission unit series that matches the bearing capacity of the single-row star gear transmission assembly series, and also achieve generalization and standardization; the high-speed output planetary gear transmission unit The structure includes a set of planetary gear mechanism for speed adjustment and a set of speed-increasing planetary gear mechanism. The two sets of mechanisms share a planet carrier, and the planetary gear mechanism for speed control transmission. The internal gear is rotatable and used. The planetary gear mechanism for speed-up transmission has fixed internal gears, and the sun gears of both are floating.

The specific technical solution to achieve the purpose of the present invention is: The star wheel reducer and governor using the star wheel transmission component are composed of a serialized, generalized and standardized star wheel transmission component and a planetary gear transmission unit according to different technical requirements and The combination of different connection methods. The star wheel transmission assembly uses a rolling star wheel as a torque and speed transmission mechanism. The rolling star wheel is an independent component. It consists of a double crank with a symmetrical 180 ° arrangement (the eccentricity of the crank is the center distance of the gear) and A double-shaft star wheel shaft and four rolling or sliding bearings mounted on the double-shaft and double-shaft star wheel shaft are combined; a single-row star wheel drive assembly is composed of a double crank eccentric sleeve (the eccentricity of the crank is the center distance of the gear) ), Two planetary gears with the same technical parameters, two planetary gears that are symmetrically 180 ° simultaneously meshing internal gears, n rolling star wheels, and a planet carrier that is fastened and connected by n support shafts and front and rear support disks. The double-row star wheel transmission assembly is composed of two double crank eccentric sleeves, four planetary gears with the same technical parameters, and four planetary gear pairs. 180 ° two internal gear while meshing, the n double star wheel and tighten scroll by the support shaft and the n number three bearing plate The planetary carrier and other main parts are combined together; the single-row planetary gear transmission unit is composed of a floating sun gear, n planet gears, a rotatable internal gear, and n support shafts and n transmissions. The force shaft is combined with the main parts such as the planet carrier which is fastened to the front and rear support discs. The double-row planetary gear transmission unit is composed of two floating sun gears, double-row n planetary gears, and two rotatable technical parameters. The internal gears, as well as the planetary carrier with n support shafts and n power transmission shafts tightly connected to the front and rear support disks, are combined; the planetary gear transmission unit with high speed output consists of a sun gear and n planetary gears. A planetary gear transmission mechanism for speed control with a rotatable internal gear, a planetary gear transmission mechanism for speed increase with another sun gear and n planetary gears, a fixed internal gear, etc., and n support shafts And n force-transmitting shafts are used to fasten the front and rear support discs into a whole-two sets of planetary gears common to the planetary gear transmission mechanism are combined; the above components and units are Requirements, different ways of coupling can be used to assemble the various applications, the installation of various types of planetary reducer or governor.

The present invention is described in detail below with reference to the drawings of the embodiments:

Figure 1: Schematic diagram of the structure of a star wheel reducer using a double-row star gear transmission assembly, a high-speed series single-row planetary gear drive unit, and the output of the inner gear housing;

Figure 2: Schematic diagram of a parallel-axis star gear reducer using a double-row star gear transmission component that meshes with a cylindrical gear through the external teeth of the component;

Figure 3: Two star-wheel reducers combined with a double-row star gear drive assembly, high-speed star-wheel reducers combined with a single-row star gear drive assembly in series, and floating bridge gears in parallel Schematic diagram of the double-in and double-out star wheel reducer transmission;

Figure 4: Schematic diagram of a low-speed star speed governor using a double-row star gear transmission assembly and a combination of external teeth and a double-row planetary gear unit;

Figure 5: Schematic diagram of a low-speed star speed governor using a dual-row star gear transmission assembly through an internal gear and a double-row planetary gear unit in series;

Figure 6: Principle diagram of star wheel governor transmission with single-row star gear transmission assembly, low speed output through combination of external teeth and single-row planetary gear unit;

Figure 7: Using a single-row star wheel transmission assembly, planetary gears with external teeth and high speed output Transmission principle diagram of star wheel governor with high speed output in parallel combination of wheel transmission unit;

Figure 8: The principle diagram of the low-speed output star gear governor using a single-row star gear transmission assembly and a series combination of an internal gear and a single-row planetary gear drive unit.

Figure 9: Rolling Star Wheel (4) Structure

In the embodiments shown in Figs. 1 to 8, the rolling pairs of all the rotating parts adopt rolling bearings, which are not shown in the figure.

In the picture: 1-Internal gear 2-Planetary gear 3-Internal gear 4-Rolling star gear 5-Double eccentric sleeve 6-Intermediate support disc 7-Support shaft 8-Rear support disc 9-Support disc 10-Front bearing block 11- Coupling 12—internal gear star gear 13—support disk 14—support shaft 15—front end cover 16—support disk 17—external gear 18—sun gear 19—planetary gear 20—power transmission shaft 21—hollow shaft 22—bearing 23—bearing seat 24—bearing seat 25—motor shaft extension 26—input shaft 27—motor end cover 28—fixing plate 29—connecting seat 30—rear bearing seat 31—oil distribution plate 32—wheel hub 40—external gear 41-level Key 42—bearing block 43—input shaft 44—gland 45—bearing block 46—internal gear 47—end cap 48—bearing block 49—retaining ring 50—hollow shaft 51—bearing 52—flat key 53—cylinder gear 54 — Base 60—Support plate 61—Support shaft 62—Support plate 64—Output shaft 65—Support plate 67—Planetary gear 68—Internal gear 69—Input shaft 70—Internal gear 71—Planetary gear 74—Input shaft 75—rear Support plate 76—front support plate 77—support shaft 78—bridge gear 79—gear 80—rear support plate 81—bearing block 82—input shaft 83—split frame 84—fixed Pin 85—Threaded hole 86—Ring gear 87—Inner gear 88—End cap 89—Support shaft 90—Front support disk 91—Sun gear 92—External gear 93—Flat key 94—Bearing block 95—Bearing block 96—Transfer force Shaft 97—planetary gear 98—output shaft 100—input shaft 101—end cover 102—support plate 103—internal gear 104—support plate 105—bearing block 106—bolt 107—bearing block 108—frame 109—end cover 110— Internal gear 111—supporting plate 112—supporting shaft 113—bearing seat 114—sun gear 115—shaft gear 116—input shaft 117—supporting plate 118—external spline 119—power transmission shaft 120—planetary gear 130—end cover 131— Input shaft 133—support disk 134—support shaft 135—external gear 136—external gear 137—internal gear 138—planetary gear 139—output shaft 140—sun gear 141 One end cover 142—planet 143—input shaft 144—external gear 145—Fixed internal gear 146 A planetary gear 147—sun gear 148—output shaft 149—support seat 150—end cover 151—planet 153—sun gear 154—planet gear 155—internal gear 156—input shaft 160—input shaft 161—rear support disk 162— Front support disk 163—support shaft 164—chassis 165—connecting disk 166—end cover 167—input shaft 168—sun gear 169—spline 170—planet 171—planet gear 172—internal gear 180—rolling star gear shaft extension 181 —Rolling bearing 182—Axle bushing 183—Double crank a—Eccentric distance of double crank A—Center distance D—Effective circle diameter K—Sensor element L—Internal gear total width J—Inlet oil C—Out oil

Example 1: (see Figure 1)

This embodiment is a star-wheel reducer using a star-wheel transmission component, which adopts a combination type of a double-row star-wheel transmission component and a single-row planetary gear transmission unit. The input shaft of the double-row star-wheel transmission component is a hollow shaft. The star gear unit is installed on the outer end of the reducer. The inner cavity of the reducer is convenient for installing signal sensing components. The decelerated motion is directly output by the convex circle on the outer circle of the internal gear of the star gear transmission assembly. The reducer is equipped with an oil distribution plate. As shown in Figure 1. The high-speed stage of the star wheel reducer is a single unit composed of (12), (13), (14), (16), (17), (18), (19), (20), (26) Row planetary gear transmission unit, the input shaft (26) is connected to the motor shaft extension (25) through a coupling, and the other end of the input shaft (26) passes through the hole center shaft (21) and is supported in the bearing of the front cover (15) In the hole, an external gear (17) is fastened to the input shaft, and the internal teeth of the sun gear (18) are floatingly engaged with the external teeth (17), and the external gear of the sun gear (18) is engaged with the planetary gear (19). The planetary gear is rotatably mounted on the power transmission shaft (20) through rolling bearings, and the support disks (16) and (13) are fastened to form an integral planet carrier through the support shaft (14) and the power transmission shaft (20). The support plate (16) is supported by the bearing in the inner hole of the front cover (15). The support plate (13) of the planet carrier is tightly coupled with the hollow shaft (21), and the planet gear (19) meshes with the internal gear (12). The gear is connected to the fixed support plate (9), and can float radially on the support plate (9), but cannot rotate; the low-speed stage shown in Figure 1 is made of parts (1 ) ~ (9), (21), (22), (23) A double-row star wheel transmission assembly, the movement is input by a hollow shaft (21), and the hollow shaft is fastened with two double eccentric (double cranks) ) Sleeve (5), two eccentric sleeves are rotatably sleeved in the center hole of four planetary gears (2) with the same technical parameters through rolling bearings, n rows of two rolling star wheels (two on a star wheel shaft Axial extension with two symmetrical 180 ° offsets The heart crank is equipped with a total of four rolling bearings or four sliding bearings, and the combination of the star wheel shaft and the four bearings is collectively referred to as a rolling star wheel.) Rolling star wheel (4) The bearings on the double crank are set on the planetary gear (2). In the bearing holes, the bearings of both ends of the rolling star wheel are respectively set in the bearing holes of the front support plate (9), the intermediate support plate (6) and the rear support plate (8), and n pieces are staggered with the rolling star wheel (4). The support shaft (7) passes through the perforations of the four planetary gears (2) (^ the support disks (6), (8) and (9) are fastened to form an integrally fixed planet carrier, the internal gear (1) The technical parameters are the same as (3). The four planetary gears (2) are symmetrically engaged with the internal gear at 180 °, the front bearing block (10) and the internal gear (3) are tightly connected, and the rear bearing block (30) and The internal gear (1) is tightly connected, so that the front and rear bearing housings and the internal gear form an integral housing, which is connected to the wheel hub (32) through the convex circle of the housing. The component (31) in Figure 1 is the oil distribution plate, and the component ( 29) is a coupling seat, one end is inserted into the spline hole of the back support plate (8), and the other end is connected to the fixed plate (28) The black bar indicated by the letter "K" in Figure 1 is the position of the sensing element that picks up vibration, noise, and temperature, and the signal line can also be led out through the appropriate position of the oil distribution plate (31). The reducer is This works: when the motor shaft extension (25) rotates, the gear (17) on the input shaft (26) rotates; the piece (17) drives the sun gear (18), and the sun gear (18) drives the planet gear (19) to rotate The planetary gear (19) meshes with the internal gear (12). Because the internal gear (12) cannot rotate, the planetary gear pushes the planet carrier for rotation through the force transmission shaft (20), and the planetary carrier support plate (13) and the hollow shaft (21) Tighten the connection, so that the rotary motion of the motor shaft is decelerated by the high-speed planetary gear transmission unit, and the decelerated motion is input to the low-speed shaft (21) by the support plate (13); when the hollow shaft (21) During rotation, the four planetary gears (2) are moved simultaneously by the rolling bearings on the crank of the two eccentric sleeves (5) fixed to the hollow shaft, and the rolling star wheels (4) are moved synchronously by the planetary gears. end Inserted into the bearing holes of the fixed support discs (6), (8), and (9), so the planetary gear (2) can only make revolutions but not rotate under the combined action of the eccentric sleeve and the rolling star wheel. The rolling star wheel can only perform the rotation motion but not the revolution motion. The planetary gear makes the revolution motion while pushing the internal gears (1) and (3) for the rotation motion, and simultaneously pushes the wheel hub (32) for the rotation motion, thereby reducing the speed. When the equipment needs to brake, the brake can brake the high-speed input shaft (26), and the low-speed input shaft (21); When the reducer is working, the filtered special lubricating oil enters the inner hole of the rolling star wheel (4) shaft through the oil distribution plate (31), and flows out from the through hole of the supporting shaft (7); the sensor indicated by the letter K The component continuously sends out the signal of the internal condition of the reducer's internal cavity to provide a condition for remote monitoring of the condition of the reducer.

Is provided in FIG. 1, the sun gear (18) the number of teeth is 2, the internal gear (12) the number of teeth Z _2, the number of teeth of the planetary gear (2) for Z _3, the number of teeth of the internal gear (1) and (3) is Z ₄ , The input speed of the reducer is ", and the output speed of the reducer is, then the transmission ratio of the reducer i ₌ z ₄ , + z ₂ )

-z ₃ )

Reducer output speed

η _λ ζ _λ ζ-ζ ₃ )

"2 = — = η ― ~~ ―

izz _x + z ₂ ) The present invention has the following characteristics:

1. The low-speed stage of the present invention adopts a double-row star-wheel drive assembly which is composed of two single-row star-wheel drive assemblies in parallel. It consists of four planetary gears, two internal gears, three support disks, two-row n-rolling star wheels, and η. The root bearing shaft, two eccentric sleeves, and other major components are combined. Relative to a specific effective circle diameter D and a specific width L, its load capacity, allowable input speed, component structure size, rolling bearing used, use The six aspects of life and production process are the same for any of the transmission ratios. They do not change due to the change of the transmission ratio. The change of the transmission ratio only needs to change the gear parameters and eccentricity (gear center distance). A high degree of generalization and standardization. This highly generalized and standardized star wheel transmission assembly can be used to combine other various types of mounting and connection types and various purposes of star wheel reducers and governors.

2. The main parts of the gear, star wheel shaft, support shaft and other parts of the double-row star wheel transmission assembly of the present invention are made of high-performance alloy steel and advanced heat treatment process; the structural design makes the internal gear part of the reducer casing, making the effective circle Get the most full use; The four planetary gears are symmetrical at 180 ° and the internal gears can simultaneously mesh with up to 56 pairs of teeth, and achieve two-way balance of the moving parts; therefore, the bearing capacity of the present invention is as high as 140N.m / lkg or more, and it also has work Reliable, long life, smooth transmission and high efficiency. 3. High-speed single-row planetary gear transmission (also use double-row planetary gear transmission unit) The mechanism is installed on the outer end of the reducer-the most convenient place to disassemble, which not only facilitates maintenance, but also shortens the suspension distance of the reducer and enhances the whole machine. rigidity.

4. The high-speed sun gear relies on its internal ring gear to floatably fit on the external gear fixed to the input shaft. This sun gear floating mechanism has the remarkable feature of short axial size.

5. The present invention adopts the internal gear output type, the planet carrier is fixed, and has the characteristics of convenient installation of a sensing element in the inner cavity of the reducer.

6. The present invention has designed a series of products that can transmit a maximum torque of more than 7480KN.m. The nominal transmission ratio can be selected between 1: 90 ~ 1: 1000.

7. According to the requirements of working conditions, the present invention can be changed to a single-row planetary gear transmission unit and a single-row star gear transmission assembly in series, or the high-speed stage can be eliminated. Output single-stage drive star gear reducer.

Example 2: (see Figure 2)

This embodiment is a star gear reducer adopting a star gear transmission assembly. A parallel-axis star gear reducer using a double-row star gear transmission assembly and a cylindrical gear is used in parallel. A single-row star gear transmission assembly and a cylinder may be used as required. The gears are connected in parallel to form a set-type parallel shaft star gear reducer, as shown in FIG. 2. The parallel shaft star gear reducer is a combination of a double-row star gear transmission component and a cylindrical gear in parallel. The reducer uses a split casing. The double-row star gear transmission component consists of two internal gears (46), four with the same technical parameters. Planetary gears (2) with the same technical parameters, n rows of rolling star wheels (4), an input shaft (43) equipped with two eccentric sleeves (5), bearing housings (42) at both ends of the input shaft, and ( 48), composed of n supporting shafts (7) and supporting discs (6), (8), (9), and integrally connected with the main planetary carrier and external gear (40), as shown in FIG. 1 The difference is that the outer ring gear (40) is added to the double-row star gear transmission assembly, and both internal gears are fastened in the inner hole of the ring gear (40). The second difference is the front and rear support discs of the planet carrier ( 8) and (9) are fastened to the machine base (54) by the flat key (41) and bolts; the third difference is that the input shaft is a solid shaft; the fourth difference is the front and rear bearing housings (45 ) And the internal gear (46) are fastened to the two ends of the ring gear (40) at the same time by bolts, and the bearing housing (45) is rotatably mounted through a rolling bearing. Two fixed support plate (8) and the cylindrical surface (9), as shown in a rest The second part of the present invention is composed of cylindrical gears (53), flat keys (52), bearings (51), retaining rings (49), and hollow (solid shafts can also be used) output shafts and other major components; the present invention is This works: when the input shaft (43) rotates, the two eccentric sleeves (5) are driven to rotate, and the two eccentric sleeves simultaneously move the four planetary gears (2) through the four rolling bearings mounted on the eccentric crank. The bearings of both ends of the n rolling star wheels are set in the bearing holes of the three supporting discs (6), (8) and (9), and the supporting discs are fixed. Therefore, the four planetary gears can only push the rolling star wheels to rotate. The planetary gear can only revolve but cannot rotate. The planetary gear meshes with the internal gear and pushes the internal gear for rotation. Because the internal gear (46) is tightly connected with the ring gear (40), the ring gear ( 40) Drive the cylindrical gear (53) to rotate in the reverse direction, and the cylindrical gear drives the hollow output shaft (50) to rotate through the flat key (52), thereby outputting the decelerated motion.

The present invention can also adopt a single-row star gear transmission assembly and a cylindrical gear in parallel to form a parallel shaft star gear reducer.

The main advantages of the present invention are: 1. The parallel shaft reducer used to replace a three-stage or more cylindrical gear transmission with a transmission ratio of 22.4 ~ 100 or more can reduce the volume and weight by more than 25%. 2. As the parts and components of the star wheel transmission assembly have been universalized and standardized, the level of generalization and standardization of the parallel shaft retarder components has been improved. 3. The parallel shaft star gear reducer overcomes the shortcomings of the standard star gear reducer which is inconvenient to adopt a hollow output shaft package structure. 4. It is flexible to use, with the output shaft as the center, n star gear transmission components with the same technical parameters are evenly distributed on the circumference with the center distance A as the radius, and its ring gear meshes with the cylindrical gear that can float at the same time (floating mechanism). (Not shown in the figure), its output torque can be increased by (0.75 ~ 1) n times; on the contrary, with the star gear transmission component as the center, n cylindrical gears with the same technical parameters are evenly distributed on the circumference with the center distance A as the radius. At the same time, it meshes with the ring gear of the star gear transmission assembly to form a parallel shaft star gear reducer with n output shafts.

Example 3: (see Figure 3)

This embodiment is a star-wheel reducer using a star-wheel transmission component. A single-row star-wheel transmission component is combined into a universal star-wheel reducer, and a double-row star-wheel transmission component can also be combined into a universal star-wheel reducer. Two technical parameters combined by a double-row star wheel transmission assembly can be used The same number of star gear reducers are connected in series at the input of the reducer. A star gear reducer composed of a single row of star gear transmission components with the same technical parameters is connected in parallel, and then two sets of gear reducers are connected in parallel through the bridge gear. A double-in and double-out star wheel reducer is assembled, as shown in FIG. 3. Double-in and double-out star gear reducer is a star gear reducer combined with a double-row star gear transmission assembly. It consists of two internal gears (68), four planetary gears (67), and double-row n rolls. Star wheel (4), two eccentric sleeves (5) mounted on the input shaft (69), and three support disks (60), (62) and (65) fastened by n support shafts (61) The integrated planetary carrier and other major components are combined; the planetary carrier front support plate (62) and the output shaft (64) are firmly connected, and the front support plate (62) and the rear support plate (60) are supported by rolling bearings. In the inner hole of the casing, the two internal gears have the same technical parameters and are fixed to the casing. The four planetary gears (67) have the same technical parameters. They are rotatably mounted on the four eccentric cranks of the two eccentric sleeves through rolling bearings. The rolling bearings on the rows of n rolling star wheel cranks are set in the planetary gear shaft holes, and the rolling bearings at both ends are respectively set in the bearing holes of the front and rear support disks and the intermediate support disk (65). The n support shafts (61) pass through four d _x perforations planet gears, and the n-th rolling double star wheel are staggered The reducer works as follows: When the input shaft (69) rotates, the four planetary gears are simultaneously moved by the rolling bearings on the eccentric sleeve (5), and the four planetary gears are symmetrically 180 ° and mesh with the internal gear (68). Because the internal gear is fixedly connected to the casing, the planetary gear performs both revolutions and rotations under the combined action of the eccentric sleeve (5) and the internal gears (68), and promotes n rows of rolling star wheels for revolutions and rotations. Because the bearings at both ends of the rolling star wheel are inserted into the bearing holes of the three supporting discs of the planet carrier, the planetary gears propel the planet carrier for rotation through the n rolling star wheels, and the front supporting disc of the planet carrier is tightly coupled with the output shaft (64). Then the planet carrier pushes the output shaft to output the decelerated motion. A high-speed end of the reducer is connected in series with a star-wheel reducer using a single-row star-wheel transmission assembly, which is composed of an internal gear (70), a planetary gear (71), a rolling star gear (4), an eccentric sleeve (5), and an input shaft ( 74), front support plate (76), support shaft (77), rear support plate (75) and other major components are combined; a high-speed reducer works as follows: the input shaft (74) is connected to the motor, and when the motor starts The input shaft (74) pushes the two planetary gears (71) through the rolling bearing on the eccentric sleeve crank, because they are evenly distributed on the diameter _Dz . The bearings of both ends of the n rolling star wheels (4) on the center circle are inserted into the front support plate (76) and the rear support plate (75) fixed on the casing In the bearing hole of the planet gear, the planetary gear can only push the rolling star gear for rotation. Two planetary gears (71) with the same technical parameters are symmetrically meshed with the internal gear (70) at 180 °, so the planetary gear is in the eccentric sleeve (5) and Under the common action of the rolling star wheel (4), the internal gear (70) is pushed to perform a rotation motion after deceleration, and the internal gear is tightly coupled with the rotating shaft (69). Therefore, on the one hand, the motion is transmitted to the low-speed reducer, and the gear (79), (78) Pass the motion to another low speed reducer.

The technical parameters of the two low-speed star gear reducers used to form a double-in and double-out star gear reducer are the same; the technical parameters of the same two high-speed star gear reducers are also the same.

The invention is mainly used for driving two binding rollers of a plate rolling machine, two output shafts (64) are connected to the plate rolling machine rollers through a coupling, and two input shafts (74) have the same technical parameters through a coupling. The motor shaft extension is connected (not shown in the figure). The two sets of reducers are connected in parallel through the gear (79) and the bridge gear (78) to complete the machine. When the two motors frequently move forward and reverse, the two stages After decelerating, the two output shafts (64) are controlled to rotate forward and backward frequently in the same direction, thereby driving the two tying rollers (not shown in the figure) to synchronize forward and reverse, and frequently reciprocate the left and right steel plates, The shape of the steel plate is gradually changed, but in the process of making the steel plate, the two output shafts exchange to bear the maximum load torque, so the power of the two motors, through the gears (79) and (78), exchanges the flow to the low speed that bears the maximum load torque. Grade star wheel reducer, to meet the requirements of the two output shafts can exchange to withstand the maximum load torque.

The invention has designed a series of double-inlet and double-outlet star wheel reducer products with a transmission ratio of 1:

Choose between 400 ~ 1: 5000, input speed ^ 1000rpm, and the maximum torque can reach 9800KN.m. Adopting the power split and synthetic transmission scheme, not only can reduce the installed capacity of the motor by 50%, but also meet the technical requirements of the two output shafts running in the same direction;

The low-speed stage star gear reducer and the high-speed stage star gear reducer are respectively designed with a single-stage transmission star gear reducer series product. Star wheel reducer series, there is a star wheel reducer series with a transmission ratio expansion mechanism in series at the input end of the low-speed star wheel reducer;

The product of the invention has small volume, light weight, large carrying capacity, high efficiency and workability Relying on the significant advantages of high standardization and generalization.

Example 4: (see Figure 4)

This embodiment is a star wheel speed governor using a star wheel transmission assembly, and a low-speed output star wheel speed governor composed of a parallel combination of a dual-row star wheel transmission assembly and a dual-row planetary gear transmission unit is shown in FIG. 4 As shown. Comparing FIG. 4 with FIG. 2, the double-row star gear transmission assembly used is the same, except that the double-row star gear transmission assembly shown in FIG. 4 is connected to the ring gear ( 86) The two parts are meshed in parallel, and the main motor power and the control motor power are parallel input. It is suitable for high-powered star speed governor (the motor is not shown in the figure). The double-row planetary gear transmission unit is driven by the input shaft. (82), an external gear (92) on the input shaft, a sun gear (91) meshing with the external gear (92) through the internal teeth, and a planetary gear (97) rotatably mounted on the force transmission shaft (96) through a rolling bearing ), And the end cover (88) — and the internal gear (87) fastened to the end of the ring gear (86), the support plate (90) is supported by n support shafts (89) and n force transmission shafts (96). ), (80) are combined into a single planetary carrier and main parts such as bearing blocks (81), (95), (94); the input shaft (82) is supported on the bearing block (94) and the support plate ( In the inner hole of 80), the front support plate (90) and the rear support plate (80) are mounted on the bearing seat (81) through rolling bearings. And (95), the bearing housings (81) and (95) are fastened to the split housing (83), and the ring gears (86) have end covers (88) at both ends that are rotatably installed. On the cylinders of the bearing housings (95) and (81), the front support disc (90) is fastened to the output shaft (98) by means of a flat key (93). The invention works like this-it is driven by two motors, the input shaft (43) is connected to the control motor M _κ (not shown in the figure), the control motor is usually a low-voltage low-power motor; the input shaft (82) is connected to the main power motor M is connected (not shown in the figure). The main power motor M is usually a high-voltage and high-power motor. When the main power input shaft (82) is braked, the control motor M _K drives the input shaft (43) to rotate. The double crank eccentric sleeve (5) simultaneously drives the four planetary gears (2) through rolling bearings. Because the planetary carrier is fixed, the planetary gears make revolutions under the combined action of the planetary carrier and the eccentric sleeve (5), and push the rolling star wheel ( 4) For the rotation motion, the planetary gear meshes with the internal gear (46), and the internal gear (46) is tightly coupled with the ring gear (40), thus pushing the ring gear (40) to slow down In the high-speed rotation motion, the ring gear (40) meshes with the ring gear (86), so that the ring gear (86) is driven to rotate at a slow speed. Because the main power input shaft (82) is fixed, the ring gear (87) drives the planetary gear ( 97) Make revolution and rotation movement around the sun gear (91), and drive the output shaft (98) for decelerating rotation movement through the force transmission shaft (96) and the support plate (90), and the output shaft obtains a regulated speed n _d; When the input shaft (43) is braked, the main power motor M drives the main power input shaft (82) to rotate. Since the ring gear (87) is fixed, the input shaft (82) is driven by an external gear ( 92) Drive the sun gear (91) to rotate, the sun gear meshes with the planetary gear (97), and drive the planetary gear to orbit and rotate around the ring gear (87), and its orbital motion drives the planet carrier through the force transmission shaft (96) Rotate the output shaft (98) to obtain an intermediate working speed n _H; Similarly, when the main power motor M continues to drive the input shaft (82) to rotate, without stopping the motor, start the control motor M _κ and the main power motor. M Rotate in the same direction, output shaft (98) Another working speed n _{f is obtained} . When the start-up control motor M _κ rotates in the opposite direction to the main power motor M, the output shaft (98) obtains a maximum working speed n _{g. When the} equipment is working, the high power main motor is According to the working conditions, it is necessary to rotate in one direction at all times. The rotation speed and rotation speed of the control motor M _κ are completely changed to achieve the purpose of equipment speed regulation. When the control motor has only one speed, the four specific speeds mentioned above can be obtained. n _d , n _f , _¾ and, the relationship between them is: n _d + n _f = n _H , n _H + n _d = n _g , it can be seen that if the control speed n _d is stepped (when the speed control motor M _κ is a two-speed motor and has 5 output speeds, and a regulated motor is a three-speed motor and has 7 output speeds, and so on) or stepless, from n _f to n _H and then from n _H to n _g Step or stepless, or the opposite process; because the star wheel governor has the function of reducing the speed and increasing the torque, the control speed n _d is obtained by regulating the speed of the motor M _κ after multi-stage deceleration and increasing the torque, so the motor M is regulated _κ power P _k - as the main power of the motor power P (0.09 0.2) times, thus _κ level speed regulation by a small motor Μ power or high-power variable speed driving apparatus has reached level object or variable speed operation. This is the main technical feature of the present invention.

The main advantages of the invention are:

1. The purpose of speed regulation of high voltage and high power motor drive equipment is achieved through speed regulation of smaller power motors, which reduces the cost of speed regulation and facilitates operation and maintenance;

2. Used for speed regulation of fluid conveying equipment such as pumps and fans, with an average power saving rate of 22% The above is used for speed regulation operation of heavy-duty machinery and equipment, and the average power saving rate is more than 10%;

3. Because the present invention has the functions of reducing the speed and increasing the torque, a high-speed motor can be used to replace a low-speed motor with a lot of consumables used to drive equipment such as water pumps, and the high-speed motor can be realized by reducing the speed of the high-speed motor through a star wheel governor Speed-adjusting operation not only saves a lot of motor materials, but also achieves the purpose of saving electrical energy by speed-adjusting.

4. The low-speed output shaft of the present invention can be connected in series with a large speed reducer or a large speed increaser.

The main motor power of the present invention can reach a maximum of 10,000 kW.

Example 5: (see Figure 5)

This embodiment is a star gear governor using a star gear transmission assembly. A double-row star gear transmission assembly and a double-row planetary gear transmission unit are combined in series to form a low symmetrical 180 ° arrangement of the main motor input shaft and the control motor input shaft. The star speed governor with speed output is shown in Figure 5. The main differences shown in Figure 5 and Figure 4 are: The double-row star gear transmission assembly is combined with the double-row planetary gear drive unit in series through the internal gears (103) and (110) to regulate the motor! ^^ (not shown in the figure) is connected to the input shaft (100), the main power motor is connected to the input shaft (116) through a coupling, the main power input shaft (116) and the regulated power input shaft (100) are symmetrical 180 ° Arrangement; speed-adjusted working speeds n _d , n _H , n _f , n _g are output through external splines (118) on the support plate (117) of the planetary gear transmission unit; Fixing is through the rear support plate

(102) and the base (108) are bolted tightly. The present invention works as follows: when the main power input shaft (116) is braked, and the starter control motor M _κ drives the input shaft (100) to rotate, the four planetary gears (2) are simultaneously pushed by the rolling bearings on the crank through the eccentric sleeve (5) The movement of the planetary carrier is fixed because the supporting discs (104), (6), (102) and n supporting shafts (7) are fastened. Therefore, the planetary gear only works under the combined action of the planetary carrier and the eccentric sleeve. Can make orbital motion and push the rolling star wheel (4) for rotation, planetary gear and internal gear

(103) meshes, thereby pushing the internal gear to perform a slow rotation motion. The internal gear (103) is fastened into the internal gear (110) by bolts (106) and bearing housings (105) and (107), thereby driving the internal gear. The gear (110) rotates slowly. Because the sun gear (114) is fixed, the internal gear (110) drives the planet gear (120) to rotate and orbit around the sun gear (114). The planet gear (120) can be rotated through a rolling bearing. Rotatably mounted on the journal of the force transmission shaft (119), Then the revolution of the planetary gear drives the planetary carrier support disc (117) to rotate slowly through the force transmission shaft to obtain a regulated speed n _d; when the input shaft (100) is braked, the main motor drives the main power input shaft through the coupling ( 116) Rotation, the support plate (117) obtains an intermediate speed n _H ; when the main motor rotates continuously, the input shaft (100) is driven to rotate in the forward and reverse directions by regulating the motor M _κ , and the support plate (117) The starting speed n _f and the maximum speed n _g can be obtained, and the rest are shown in FIG. 4.

Example 6: (see Figure 6)

This embodiment is a star-wheel speed governor using a star-wheel drive component. A single-row star-wheel drive component and a single-row planetary gear unit are combined in parallel to form a commonly-used low-speed output star-wheel speed governor, as shown in FIG. 6. As shown. It is a commonly used low-speed star speed governor that uses a single-row planetary gear assembly and a single-row planetary gear unit in parallel. Its working principle is exactly the same as that shown in FIG. 4. The star wheel transmission assembly shown in FIG. 6 includes an input shaft (131), an eccentric sleeve (5), n rolling star wheels (4), a planetary gear (2), an internal gear (1), and two supporting disks (133 ) And n supporting shafts (134) are tightly connected to the planet carrier and two end caps (130) and other major components are combined, through the internal gear (1) external gear (135) on the outer circle and external teeth (136) Meshing to achieve a parallel combination with the planetary gear transmission unit; the planetary gear unit consists of an input shaft (143), a floating sun gear (140), a planet gear (138), an internal gear (137), and a planet carrier (142 ), Two end caps (141), and output shaft (139) are combined; similarly, the low-speed output shaft (139) of the present invention can be connected in series with either a heavy-duty transmission reducer or a speed increaser. In order to achieve high-speed equipment speed regulation operation; the main motor M rotates continuously during the operation of the present invention, and the method for obtaining various output speeds by controlling and controlling the rotation and speed of the motor M _{κ is shown} in FIG. 4. identical.

The advantages of the invention are: 1. The application range is wide, the maximum power of the main motor can reach more than 5000kW, not only can be used for low-speed water pump speed control operation, but also often used for low-speed and heavy-load mechanical speed control operation. The output shaft (139) speed increaser in series It can be widely used in high-speed water pumps, fans and other equipment for speed regulation operation. 2. In the range of effective circle diameter ϋ = Φ200 ~ Φ2500ιηπι, arranged according to the R20 priority number system, the star wheel transmission component series and load capacity are designed to match it. The planetary gear unit series can be combined into a wide range of star speed governor series. Series products have high standardization and generalization, and other advantages are shown in Figure 4.

Example 7: (see Figure 7)

This embodiment is a star wheel governor using a star wheel transmission assembly. A single-row star wheel transmission assembly is used in parallel with a planetary gear transmission unit with a high speed output to form a commonly used star wheel speed governor with a high speed output, such as Figure 7 shows. It is a high-speed output star-wheel governor, which is a combination of the standardized and universal single-row star gear transmission assembly shown in Figure 6 and the standardized and general-purpose high-speed output planetary gear transmission unit. The planetary gear transmission unit consists of a main power input shaft (156), a sun gear (153), a planetary gear (154), a rotatable internal gear (155), an outer ring gear (144), a front and rear end cover (150), and a planet The frame (151), fixed internal gear (145), planetary gear (146), sun gear (147), and output shaft (148) are combined; the main technical features are: the planetary gear transmission unit contains two sets The planetary gear transmission mechanism is composed of a sun gear (153), a planet gear (154), an internal gear (155), and the like for speed adjustment. Its function is similar to that of the planetary gear transmission unit shown in FIG. 4 and FIG. 6. It is the same; the planetary gear transmission speed increasing mechanism is composed of the sun gear (147), the planet gear (146), and the fixed internal gear (145); its speed increasing ratio

^Z A

In the formula, eight is the number of teeth of the sun gear (147), 2 ₈ is the number of teeth of the internal gear (145); two sets of planetary gear transmission mechanisms share a set of planet carriers (151), and the planet gears (154) and (146) both pass rolling bearings rotatably mounted in the carrier (151) of the force-transmitting shaft; governor according to the method of FIG. 4, when the carrier (151) to obtain _{_{_{n g, n H, n f}}} , n d four specific working speed When these four speeds are not directly output, they are output by the output shaft (148) after increasing speed, and the output speeds after increasing speed are i _k .n _g , i _k .n _H , i _k .n _f , i _k .n _d , that is, the speed obtained by the planet carrier is always multiplied by the speed increase ratio i _k .

The invention is mainly used for speed regulating operation of high-speed water pumps, fans and other fluid conveying equipment, and the average power saving rate can reach more than 20%. A prominent feature of the present invention is that the rotation speed of working equipment such as water pumps and fans is not restricted by the rotation speed of the main motor within a certain range, and the speed of the equipment can be adjusted to a direction where the rotation speed of the motor is low. Directional speed regulation is not only for setting The design department of the design department has created the conditions for the optimal speed of the equipment, and it is helpful for the user to reasonably configure the equipment. The invention can also be used in other mechanical transmission fields. The rest is described in FIG. 6.

Example 8: (see Figure 8)

This embodiment is a star-wheel speed governor using a star-wheel transmission component. A single-row star-wheel transmission component and a single-row planetary gear transmission unit are combined in series to form two commonly used input shafts.

The 180 ° starwheel governor with low speed output is shown in Figure 8. It is a star-wheel governor with an input shaft symmetry of 180 ° arranged by combining the speed governor shown in Figure 5 with a double-row star gear transmission assembly and a double-row planetary gear transmission unit into a single-row structure. The working principle is shown in Figure 5. 5 stated. The single-row star wheel transmission assembly of the present invention is supported by a regulated power input shaft (160), an eccentric sleeve (5), a planetary gear (2), a rolling star wheel (4), and front and rear support discs (162), (161), and supports. The shaft (163) is firmly combined with the planet carrier and the rotatable internal gear (1) and other major components; the single-row planetary gear transmission unit of the present invention is composed of a main power input shaft (167), a sun gear (168), The planetary gear (171), the internal gear (172), and the planet carrier (170) are combined. The speed-adjusted movement is output by the spline (169) on the front support plate (170) of the planet carrier; two The internal gears (1) and (172) of the components are tightly coupled; the speed regulation method and working principle of the present invention are described in FIG. 5.

The structural feature of the present invention is that it adopts an integral casing, and the two components are directly connected through two internal gears, thereby eliminating the processing of the large-sized external gears (135) and (136) shown in FIG. The present invention is mainly used for speed-adjusting operation of mechanical equipment such as horizontal mills and vertical mills, and speed-adjusting operation of fluid conveying equipment such as water pumps and wind turbines, and the others are described in FIGS. 4 and 5 and 6.

Claims

Rights request

1. A star gear reducer or governor using a star gear transmission assembly is a combination of a serialized, generalized and standardized star gear transmission assembly and a planetary gear transmission unit according to different technical requirements and different connection methods. It is characterized in that the star wheel transmission assembly adopts a rolling star wheel as a torque and speed transmission mechanism. The rolling star wheel is an independent component. It consists of a double crank with a symmetrical 180 ° arrangement (the eccentricity of the crank means the center distance of the gear) and a biaxial extension. The star wheel shaft and four rolling or sliding bearings mounted on the double crank and double shaft extension of the star wheel shaft are combined; the single-row star wheel transmission assembly is composed of a double crank eccentric sleeve (the eccentricity of the crank means the center distance of the gear), two The planetary gears with the same technical parameters, internal gears with two planetary gears symmetrically 180 ° simultaneously meshing, n rolling star wheels, and planetary carriers which are fastened and connected by n support shafts and front and rear support discs are combined; double The row star wheel transmission assembly is composed of two double crank eccentric sleeves, four planetary gears with the same technical parameters, and four planetary gears symmetrically 180 ° at the same time The two internal gears that mesh with each other, n rolling star wheels in two rows, and a planet carrier that is fastened and connected with n support shafts and three support disks are combined; single-row planetary gear transmission units are composed of a floating The sun gear, n planetary gears, a rotatable internal gear, and the planetary carrier which is tightly connected with n support shafts and n power transmission shafts to the front and rear support disks are combined; the double-row planetary gear transmission The unit is composed of two floating sun gears, n planetary gears in two rows, two internal gears that can rotate with the same technical parameters, and n support shafts and n power transmission shafts are firmly connected to the front and rear support disks. The planetary carrier and other major components are combined; a high-speed output planetary gear transmission unit includes a sun gear, n planetary gears, a rotatable internal gear, etc. as the planetary gear transmission mechanism for speed regulation, and another sun gear and η planetary gears, a fixed internal gear, etc. are used as speed-increasing planetary gear transmission mechanisms, and η support shafts and η power transmission shafts are used to fasten the front and rear support disks into a whole. ——The two sets of planetary gears common to the planetary gear transmission mechanism are combined; the above components and units can be combined into different types of various types of installations, star gear reducers or different types of installations according to different requirements. Governor.

2. A star gear reducer using a star gear transmission assembly according to claim 1, characterized in that a double-row star gear transmission assembly is combined with a single-row planetary gear transmission unit in series, and the double-row star gear transmission assembly The input shaft is a hollow shaft. A single-row planetary gear unit is installed on the outer end of the reducer. The internal cavity of the reducer is convenient for installing signal sensing components. The decelerated motion is directly on the outer circle of the internal gear of the star gear transmission assembly. Convex output, the reducer is equipped with an oil distribution plate.

3. A star gear reducer using a star gear transmission assembly according to claim 1, characterized in that a parallel-axis star gear reducer in which a double-row star gear transmission component is combined with a spur gear is used in parallel. The single-row star wheel transmission assembly is combined with the cylindrical gear in parallel to form a set-type parallel shaft star wheel reducer.

4. A star gear reducer using a star gear transmission component according to claim 1, characterized in that a single-row star gear transmission component can be combined into a universal star gear reducer, or a double-row star gear transmission component can be used. Combined with a universal star gear reducer, at the same time, two star gear reducers with the same technical parameters combined by a double-row star gear transmission assembly can be used, and a single row of stars with the same technical parameters are connected in series at the input of the reducer. The star gear reducer combined by the wheel transmission assembly, and then two sets of gear reducers are combined in parallel through the bridge gear to form a double-in and double-out star gear.

5. A star speed governor using a star gear transmission assembly according to claim 1, characterized in that a low-speed output star composed of a double-row star gear transmission assembly and a double-row planetary gear transmission unit is connected in parallel. The wheel governor can also use a single-row star gear transmission component and a single-row planetary gear transmission unit in parallel to form a commonly used low-speed output star gear speed governor. A single-row star gear transmission component and a high-speed output gear can also be used. The planetary gear transmission unit is connected in parallel to form a commonly used star speed governor with a high speed output.

6. The star wheel governor using a star wheel transmission assembly according to claim 1, characterized in that a double-row star wheel transmission assembly and a double-row planetary gear transmission unit are combined in series to form a main motor input shaft and a regulating motor. The input-axis symmetrical 180 ° low-speed output star speed governor can also use a single-row star gear transmission assembly and a single-row planetary gear unit in series to form two commonly used input-axis symmetrical 180 ° low-speed outputs. Star wheel governor.