AU2018454882A1 - Drum-shaped gear coupling and gear drive system provided with same - Google Patents
Drum-shaped gear coupling and gear drive system provided with same Download PDFInfo
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- AU2018454882A1 AU2018454882A1 AU2018454882A AU2018454882A AU2018454882A1 AU 2018454882 A1 AU2018454882 A1 AU 2018454882A1 AU 2018454882 A AU2018454882 A AU 2018454882A AU 2018454882 A AU2018454882 A AU 2018454882A AU 2018454882 A1 AU2018454882 A1 AU 2018454882A1
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- drum gear
- drum
- limiting
- gear coupling
- sleeve
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- 230000008878 coupling Effects 0.000 title claims abstract description 125
- 238000010168 coupling process Methods 0.000 title claims abstract description 125
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 125
- 238000007789 sealing Methods 0.000 claims abstract description 141
- 230000002093 peripheral effect Effects 0.000 claims abstract description 54
- 230000000670 limiting effect Effects 0.000 claims description 137
- 238000004891 communication Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 12
- 238000005299 abrasion Methods 0.000 description 9
- 230000001050 lubricating effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/18—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts the coupling parts (1) having slidably-interengaging teeth
- F16D3/185—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts the coupling parts (1) having slidably-interengaging teeth radial teeth connecting concentric inner and outer coupling parts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Gear Transmission (AREA)
- Transmission Devices (AREA)
Abstract
Provided are a drum-shaped gear coupling and a gear drive system provided with same. The drum-shaped gear coupling comprises: a sleeve (10), the sleeve (10) comprising a sleeve body (11) and an inner toothed portion (12) arranged on an inner peripheral face of the sleeve body (11); a drum-shaped gear (20), wherein at least part of the drum-shaped gear (20) is arranged in a cavity of the sleeve (10), the drum-shaped gear (20) comprises a sheath body (21), an extension portion (22) and a drum-shaped toothed portion (23), the extension portion (22) extends from a first end of the sheath body (21) to a second end of the sheath body (21), a ring-shaped gap (24) provided with an opening is formed between the extension portion (22) and the sheath body (21), the drum-shaped toothed portion (23) is arranged on an outer peripheral face of the extension portion (22), the drum-shaped toothed portion (23) meshes with the inner toothed portion (12), the drum-shaped gear (20) can swing and axially move relative to the sleeve (10), and an outer peripheral face of the sheath body (21) is provided with a first arc-shaped face (211) protruding outwards; and a ring-shaped sealing portion (50), wherein the ring-shaped sealing portion (50) is sheathed on the outer peripheral face of the sheath body (21), a first end of the ring-shaped sealing portion (50) is in contact with the first arc-shaped face (211), and a second end of the ring-shaped sealing portion (50) is directly or indirectly connected to the sleeve body (11). The solution can solve the problem of the poor sealing performance of the drum-shaped gear coupling.
Description
Drum Gear Coupling and Gear Drive System with Same
Technical Field
The present invention relates to the technical field of couplings, and particularly relates to a drum gear coupling and a gear drive system with same.
Background
The coupling is mainly configured for connecting two shafts (a driving shaft and a driven shaft) of different mechanisms and rotating the two shafts together to complete torque transmission, which is widely applied to mechanical drive apparatuses. In the field of rail transit, as a key component on a bogie of a rail vehicle, the coupling plays an important role in transmitting traction load and compensating displacement deviation between an output shaft of an electric motor and a high-speed shaft of a gear box. In high-speed and heavy-load power drive of rail transit, the coupling must have the effects of buffering, damping and improving the dynamic performance.
There are many types of couplings, and generally, the couplings may be divided into fixed couplings and movable couplings according to the relative positions and the position change conditions of two connected shafts. The fixed coupling is mainly used in places where the two shafts are required to be strictly centered and do move relative to each other in work. The movable coupling is mainly configured for occasions where the two shafts are inclined or have relative displacement in work. According to the method of displacement compensation, the movable couplings are divided into rigid movable couplings and elastic movable couplings. The drum gear coupling belongs to the rigid movable couplings, and can be widely used in various mechanical drive systems of rail transit, ships, mines, etc. owing to its large axial displacement, radial displacement and angular displacement compensation capacity.
The drum gear coupling mainly consists of a sleeve with inner teeth and a drum tooth portion with outer teeth, and the inner teeth and the outer teeth mesh with each other. Since the external teeth of the drum gear are machined into a drum shape, angular displacement and axial displacement between the sleeve and the drum gear are allowed, thereby allowing the driving shaft and the driven shaft connected to the drum gear coupling to move relatively in a rotational motion.
Generally, one side of the drum gear coupling is connected to an output shaft (a driving shaft) of an electric motor, and the other side of the drum gear coupling is connected to an input shaft (a driven shaft) of a drive gear box.
1 DnI)Q1All
Since the two shafts connected to the drum tooth coupling can generate relative displacement in the operation process, tooth surfaces of the inner teeth and the outer teeth periodically and relatively slide in an axial direction, inevitably resulting in tooth surface abrasion and power loss. To reduce abrasion of the gear teeth and frictional resistance to relative movement, the coupling needs to work in a well lubricated and sealed state.
Disclosed in the patent CN1181469A is a coupling which can guarantee the sealing performance and prolong the service life of a sealing member when the axes of two connected shafts are staggered. A spring arranged on a drum gear shaft body is mainly configured for pushing and pressing the sealing member which is slidably arranged on the outer peripheral surface of a drum gear main body and is provided with a spherical sealing surface and an adaptive surface of an end cap to achieve close contact, so as to enhance the sealing performance of the coupling and reduce the abrasion of the sealing member, thereby prolonging the service life of the sealing member.
Disclosed in the patent CN1101899C is a coupling capable of avoiding medium exchange and avoiding abrasion of a sealing member during operation. According to its solution, at least one corrugated pipe is arranged between a sleeve of the coupling and each connection member, wherein the corrugated pipe is fixed on one of the sleeve and the connection member and is in an axial direction, and the corrugated pipe seals a synchronous gear pair and elastically adjusts the position of the sleeve of the coupling.
In the above patents or other related art, when the drum gear deflects relative to the sleeve in the drum gear coupling, sealing between the sealing member and the drum gear is not tight, and different portions of the sealing member are abraded unevenly, which greatly affects the sealing effect and the service life of the coupling.
Summary
Some embodiments of the present invention provide a drum gear coupling and a gear drive system with same, so as to solve the problem of poor sealing performance of a drum gear coupling in the related art.
For solving the above problems, according to an aspect of the present invention, provided is a drum gear coupling, including: a sleeve, wherein the sleeve includes a barrel and an inner tooth portion arranged on an inner peripheral surface of the barrel; a drum gear, wherein at least part of the drum gear is arranged in a cavity of the sleeve, the drum gear includes a sleeve body, an extension portion and a drum tooth portion, the extension portion extends from a first end of the sleeve body to a second end of the sleeve body, an annular gap provided with an opening is formed between the
2 DnI210AII extension portion and the sleeve body, the drum tooth portion is arranged on an outer peripheral surface of the extension portion, the drum tooth portion meshes with the inner tooth portion, the drum gear may swing and axially move relative to the sleeve, and an outer peripheral surface of the sleeve body is provided with a first arc-shaped surface protruding outwards; and an annular sealing portion, wherein the annular sealing portion sleeves the outer peripheral surface of the sleeve body, a first end of the annular sealing portion makes contact with the first arc-shaped surface, and a second end of the annular sealing portion is connected to the barrel directly or indirectly.
Further, a plane perpendicular to an axial direction of the drum tooth portion and passing through a midpoint of a width of the drum tooth portion is a central plane, and a highest point of the first arc shaped surface is located on the central plane.
Further, the first arc-shaped surface is a spherical surface.
Further, a surface where tooth tip of the drum tooth portion is a second spherical surface, and a spherical center of the first arc-shaped surface coincides with a spherical center of the second spherical surface.
Further, the sleeve body includes a first sleeve section and a second sleeve section, which are connected in sequence, the extension portion surrounds the first sleeve section and extends towards the second sleeve section, and the first arc-shaped surface is located on an outer peripheral surface of the second sleeve section.
Further, the outer peripheral surface of the second sleeve section is a spherical surface, or the outer peripheral surface of the second sleeve section consists of a spherical surface and a cylindrical surface.
Further, the drum gear coupling further includes: a limiting structure connected to the barrel, wherein the limiting structure is configured for limiting a moving range of the drum gear, and the second end of the annular sealing portion is arranged on the limiting structure.
Further, the limiting structure includes: a second limiting portion, the second limiting portion being connected to an end of the barrel, the second limiting portion being located on one side, provided with the annular gap, of the drum gear, the second limiting portion being configured for abutting against the sleeve body of the drum gear or the extension portion of the drum gear, and the second end of the annular sealing portion is fixedly provided on the second limiting portion.
Further, the second limiting portion is configured for abutting against the sleeve body of the drum gear, and the second limiting portion is provided with a second arc-shaped surface matching with the
3 DnI210AII first arc-shaped surface.
Further, the second limiting portion includes: a first end cap, a larger-diameter end of the first end cap being connected to the end of the barrel; and a limiting member arranged at a smaller-diameter end of the first end cap, the second arc-shaped surface being arranged on the limiting member, and the second end of the annular sealing portion being connected to the limiting member or the first end cap.
Further, the first end cap includes an annular member arranged in a radial direction of the barrel and a tubular member arranged in an axial direction of the barrel, the annular member being connected to the end of the barrel, the tubular member being located on one side, facing the extension portion of the drum tooth portion, of the annular member, and the limiting member being connected to an inner wall of the tubular member.
Further, the second limiting portion is configured for abutting against the extension portion of the drum tooth portion, and the sleeve further includes a second end cap connected to the end of the barrel, the second end cap being arranged in a radial direction of the barrel, the second end cap having a center hole allowing the sleeve body passing through, and the second end cap forming the second limiting portion.
Further, the second end of the annular sealing portion is connected to the second end cap by a fastener.
Further, an inner end surface of the second end cap is provided with a groove, and the second end of the annular sealing portion is interference fit in the groove of the second end cap.
Further, the annular sealing portion includes a skeleton, a sealing member and a support member, the sealing member and the support member being connected to two sides of the skeleton separately, wherein the support member is connected to the second end cap, and the sealing member makes contact with the first arc-shaped surface.
Further, one side, away from the annular gap, of the extension portion of the drum gear is provided with a first spherical surface, and the limiting structure further includes: a first limiting portion fixed in the cavity of the barrel of the sleeve, the first limiting portion being located on the side, away from the annular gap, of the extension portion, and thefirst limiting portion being provided with a third spherical surface, wherein the third spherical surface matches with the first spherical surface to limit a moving distance of the drum gear.
4 DnI210AII
Further, a first step is arranged on the inner peripheral surface of the barrel, the first limiting portion has a tubular structure, a second step is arranged on an outer peripheral surface of the first limiting portion, and the second step matches the first step in a limiting manner.
Further, an end surface of the first limiting portion abuts against an end surface of the inner tooth portion.
Further, the first limiting portion has a tubular structure, and a seal ring is arranged between an outer wall of the first limiting portion and an inner wall of the barrel.
Further, the drum gear coupling further includes: a clamping ring, wherein a part of the clamping ring is embedded into the inner wall of the barrel, and the other part of the clamping ring abuts against one end surface, away from the inner tooth portion, of the first limiting portion.
Further, the first limiting portion has a tubular structure, and the first limiting portion is provided with a first through hole.
Further, the barrel is provided with a second through hole, the second through hole is in communication with the first through hole, and the gear drum coupling further includes: a plug, the plug being configured for plugging the second through hole.
Further, the extension portion is provided with a third through hole, and the third through hole is configured for communicating cavities on two sides of the extension portion.
Further, the inner peripheral surface of the sleeve body of the drum gear is provided with an oil guide groove.
Further, the gear drum coupling further includes: a bushing arranged on the inner peripheral surface of the sleeve body, wherein an outer peripheral surface of the bushing is in interference fit with the inner peripheral surface of the sleeve body.
Further, the gear drum coupling includes two sleeves, two drum gears and two annular sealing portions, the two sleeves being connected to each other, the two drum gears and the two sleeves being arranged in a one-to-one correspondence manner, and the two annular sealing portions and the two sleeves being arranged in a one-to-one correspondence manner.
Further, the annular sealing portion includes a skeleton and a sealing member, skeleton vulcanized integrally with the skeleton, the skeleton being interference fit in a groove in the inner wall of the tubular member of the first end cap, and the sealing member making sliding contact with the first arc-shaped surface.
5 DnI210AII
Further, the annular sealing portion includes a skeleton and a sealing member, skeleton vulcanized integrally with the skeleton, the skeleton being interference fit in a groove in the second end cap, and the sealing member making sliding contact with the first arc-shaped surface.
According to the other aspect of the present invention, provided is a gear drive system, including the drum gear coupling provided above, and further including a drive gear box, wherein an input shaft of the drive gear box is in conical interference fit with an inner peripheral surface of a sleeve body of a drum gear of the drum gear coupling.
According to the technical solution of the present invention, the inner tooth portion is arranged in the sleeve of the drum gear coupling, the drum tooth portion is arranged on the extension portion of the drum gear, in this way, the drum gear swings and axially moves relative to the sleeve by means of cooperation between the drum tooth portion and the inner tooth portion, and sealing is conducted by means of cooperation between the annular sealing portion and the sleeve body. Since the outer peripheral surface of the sleeve body of the drum gear is provided with the first arc-shaped surface, when the drum gear deflects relative to the sleeve, the circumferential direction of the annular sealing portion makes uniform contact with the first arc-shaped surface of the sleeve body for sealing. Therefore, on one hand, the good sealing effect at different positions may be guaranteed, and on the other hand, the annular sealing portion is evenly abraded, thereby improving the sealing effect and prolonging the service life of the drum gear coupling during operation.
Brief Description of the Drawings
The accompanying drawings, forming a part of the present application, of the description serve to provide a further understanding of the present invention, and the illustrative embodiments of the present invention and the description of the illustrative embodiments serve to explain the present invention and are not to be construed as unduly limiting the present invention. In the drawings:
Fig. 1 shows a schematic structural diagram of a drum gear coupling in an initial position according to Embodiment 1 of the present invention;
Fig. 2 shows a schematic structural diagram of the drum gear coupling in Fig. 1 in a tilted position;
Fig. 3 shows a schematic structural diagram of the drum gear coupling in Fig. 1 in an extreme position;
Fig. 4 shows a schematic structural diagram of the drum gear coupling in Fig. 1 in another extreme position;
Fig. 5 shows a schematic structural diagram of a drum gear coupling according to Embodiment
6 DnI210AII
2 of the present invention;
Fig. 6 shows a schematic structural diagram of a drum gear coupling according to Embodiment 3 of the present invention;
Fig. 7 shows a schematic structural diagram of the drum gear coupling in Fig. 6 in a tilted position.
The above-mentioned figures include the following reference numerals:
10. sleeve; 11. barrel; 111. first step; 12. inner tooth portion; 13. second end cap; 20. drum gear; 21. sleeve body; 211. first arc-shaped surface; 212. first sleeve section; 213. second sleeve section; 214. oil guide groove; 22. extension portion; 221. first spherical surface; 23. drum tooth portion; 24. annular gap; 25. third through hole; 30. first limiting portion; 31. third spherical surface; 32. second step; 33. first through hole; 41. seal ring; 42. clamping ring; 43. plug; 44. fastener; 50. annular sealing portion; 51. skeleton; 52. sealing member; 53. support member; 60, second limiting portion; 61. second arc-shaped surface; 62. first end cap; 63. limiting member; 70. bushing.
Detailed Description of the Embodiments
The technical solutions of embodiments of the present invention will be described below clearly and comprehensively in conjunction with accompanying drawings of the embodiments of the present invention. Apparently, the embodiments described are merely some embodiments rather than all embodiments of the present invention. The following description of at least one illustrative embodiment is merely illustrative in nature and in no way serves as any limitation of the present invention and its application or uses. Based on the embodiments of the present invention, other various embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.
As shown in Fig. Ito Fig. 4, Embodiment 1 of the present invention provides a drum gear coupling, including a sleeve 10, wherein the sleeve 10 includes a barrel 11 and an inner tooth portion 12 arranged on an inner peripheral surface of the barrel 11; a drum gear 20, wherein at least part of the drum gear 20 is arranged in a cavity of the sleeve 10, the drum gear 20 includes a sleeve body 21, an extension portion 22 and a drum tooth portion 23, the extension portion 22 extends from a first end of the sleeve body 21 to a second end of the sleeve body 21, an annular gap 24 provided with an opening is formed between the extension portion 22 and the sleeve body 21, the drum tooth portion 23 is arranged on an outer peripheral surface of the extension portion 22, the drum tooth portion 23 meshes with the inner tooth portion 12, the drum gear 20 may swing and axially move relative to the sleeve 10, and an outer peripheral surface of the sleeve body 21 is provided with a first arc-shaped surface 211 protruding outwards; and an annular sealing portion 50, wherein the annular sealing 7 DnI210AII portion 50 sleeves the outer peripheral surface of the sleeve body 21, a first end of the annular sealing portion 50 makes contact with the first arc-shaped surface 211, and a second end of the annular sealing portion 50 is connected to the barrel 11 directly or indirectly.
According to the technical solution of the present invention, the inner tooth portion 12 is arranged in the barrel 11 of the sleeve 10 of the drum gear coupling, the drum tooth portion 23 is arranged on the extension portion 22 of the drum gear 20, in this way, the drum gear 20 swings and axially moves relative to the sleeve 10 by means of cooperation between the drum tooth portion 23 and the inner tooth portion 12, and sealing is conducted by means of cooperation between the annular sealing portion 50 and the sleeve body 21. In the present embodiment, the inner tooth portion 12 specifically consists of a plurality of involute straight teeth, and the drum tooth portion 23 consists of a plurality of drum-type teeth. Since the outer peripheral surface of the sleeve body 21 of the drum gear 20 is provided with the first arc-shaped surface 211, when the drum gear 20 deflects relative to the sleeve , the circumferential direction of the annular sealing portion 50 makes uniform contact with the first arc-shaped surface 211 of the sleeve body 21 for sealing. Therefore, on one hand, the good sealing effect at different positions of the drum gear coupling may be guaranteed, and on the other hand, different portions of the annular sealing portion 50 are evenly abraded, thereby effectively improving the sealing effect and prolonging the service life of the drum gear coupling during operation.
In the present embodiment, a plane perpendicular to an axial direction of the drum tooth portion 23 and passing through a midpoint of a width of the drum tooth portion 23 is a central plane, and a highest point of the first arc-shaped surface 211 is located on the central plane. In an initial state, one end of the annular sealing portion 50 makes contact with a circumference where the highest point of the first arc-shaped surface 211 is located, accordingly, when the drum gear 20 deflects relative to the sleeve 10, the circumferential direction of the annular sealing portion 50 makes contact with the first arc-shaped surface 211 of the sleeve body 21 all the time, the elastic deformation amount is smaller, and the sealing effect is better.
Specifically, the first arc-shaped surface 211 may be set to be a spherical surface. The first arc shaped surface 211 is set to be a spherical surface, such that when the sleeve body 21 rotates, even though the position of the first arc-shaped surface 211 making contact with the annular sealing portion changes, the elastic deformation amount of the annular sealing portion 50 does not change when the sleeve body 21 has no axial displacement; and different portions, making contact with the spherical surface, of the annular sealing portion 50 are only slightly and uniformly deformed when the sleeve body 21 has axial displacement. Therefore, by means of the technical solution, good sealing may be achieved between the first arc-shaped surface 211 and different contact portions of the annular sealing portion 50, and abrasion of the different contact portions of the annular sealing portion 50 is 8 DnI210AII even, thereby significantly improving the sealing effect and prolonging the service life of the drum gear coupling during operation. The spherical surface in the present embodiment is not a complete spherical surface and may be understood as an annular partial spherical surface.
In the present embodiment, a surface where tooth tip of the drum tooth portion 23 is a second spherical surface, and a spherical center of thefirst arc-shaped surface 211 coincides with a spherical center of the second spherical surface. By means of the above arrangement, when the drum gear 20 deflects relative to the sleeve 10, no additional torque is generated, thereby reducing abrasion or vibration of the sleeve 10 and the drum gear 20, and further prolonging the service life of the drum gear coupling.
In the present embodiment, the sleeve body 21 includes a first sleeve section 212 and a second sleeve section 213, which are connected in sequence, the extension portion 22 surrounds the first sleeve section 212 and extends towards the second sleeve section 213, and thefirst arc-shaped surface 211 is located on an outer peripheral surface of the second sleeve section 213. Specifically, the outer peripheral surface of the second sleeve section 213 is a spherical surface or the outer peripheral surface of the second sleeve section 213 consists of a spherical surface and a cylindrical surface. By means of the above arrangement, reasonable arrangement of the overall geometric structure and shape of the drum gear coupling is facilitated, the structure is compact, it can be guaranteed that the drum gear 20 has enough strength, and machining and detection are facilitated. In the present embodiment, the drum gear 20 is a integrally formed structure, and preferably, is integrally forging formed, that is, a forge piece blank of the drum gear 20 is manufactured firstly, then the drum gear 20 is obtained after machining of the drum tooth portion 23, and other forming manufacturing processes may also be used. Certainly, the drum gear 20 may also be set as a split structure if desired.
In the present embodiment, the drum gear coupling further includes: a limiting structure connected to the barrel 11, wherein the limiting structure is configured for limiting a moving range of the drum gear 20, and the second end of the annular sealing portion 50 is arranged on the limiting structure. The drum gear 20 may be prevented from being separated from the sleeve 10 by means of the limiting structure.
In the present embodiment, the limiting structure includes: a second limiting portion 60, the second limiting portion 60 being connected to an end of the barrel 11, the second limiting portion 60 being located on one side, provided with the annular gap 24, of the drum gear 20, the second limiting portion 60 being configured for abutting against the sleeve body 21 of the drum gear 20 or the extension portion 22 of the drum gear 20, and the second end of the annular sealing portion 50 is fixedly provided on the second limiting portion 60. The drum gear 20 may be prevented from being
9 DnI210AII separated from the sleeve 10 by means of the second limiting portion 60.
Specifically, the second limiting portion 60 is configured for abutting against the sleeve body 21 of the drum gear 20, and the second limiting portion 60 is provided with a second arc-shaped surface 61 matching with the first arc-shaped surface 211. The second arc-shaped surface 61 makes contact with the first arc-shaped surface 211, such that a large contact area is formed during limiting, which may achieve a good limiting effect. Under the condition that the first arc-shaped surface 211 is a spherical surface, the second arc-shaped surface 61 is correspondingly provided as a spherical surface.
In the present embodiment, the second limiting portion 60 includes: a first end cap 62, a larger diameter end of the first end cap 62 being connected to the end of the barrel 11; and a limiting member 63, arranged at a smaller-diameter end of the first end cap 62, the second arc-shaped surface 61 being arranged on the limiting member 63 or the first end cap 62, and the second end of the annular sealing portion 50 being connected to the limiting member 63. In this way, the limiting member 63 may be configured for both limiting the drum gear 20 and axially constraining or fixing the annular sealing portion 50. The limiting member 63 may be made of a metallic material or a wear-resistant non metallic material.
Specifically, the first end cap 62 includes an annular member arranged in a radial direction of the barrel 11 and a tubular member arranged in an axial direction of the barrel 11, the annular member being connected to the end of the barrel 11, the tubular member being located on one side, facing the extension portion 22 of the drum tooth portion 23, of the annular member, and the limiting member 63 being connected to an inner wall of the tubular member. By means of the above arrangement, the arrangement of the second limiting portion 60 and the annular sealing portion 50 is facilitated, which may improve the compactness of the drum gear coupling.
In the present embodiment, a groove may be provided in the limiting member 63, and the annular sealing portion 50 includes a skeleton 51 and a sealing member 52 connected to the skeleton 51, wherein a part of the skeleton 51 is arranged in the groove and the sealing member 52 makes contact with the first arc-shaped surface 211.
Alternatively, in the present embodiment, the annular sealing portion 50 includes a skeleton 51 and a sealing member 52 vulcanized integrally with the skeleton 51, a larger-diameter end with support of the skeleton 51 and a smaller-diameter end without support of the skeleton 51 are formed, the larger-diameter end defines a second end of the annular sealing portion 50 and is in interference fit in a groove in an inner wall of the tubular member of the first end cap 62, and the smaller-diameter end defines a first end of the annular sealing portion 50 and makes sliding contact with the first arc shaped surface 211. 10 DnI210AII
In the present embodiment, one side, away from the annular gap 24, of the extension portion 22 of the drum gear 20 is provided with a first spherical surface 221, and the limiting structure further includes: a first limiting portion 30, fixed in the cavity of the barrel 11 of the sleeve 10, the first limiting portion 30 being located on the side, away from the annular gap 24, of the extension portion 22, and the first limiting portion 30 being provided with a third spherical surface 31, wherein the third spherical surface 31 matches with the first spherical surface 221 to limit an axial moving distance of the drum gear 20. Therefore, during limiting, the two spherical surfaces are configured for matching, meshing between the drum tooth portion 23 and the inner tooth portion 12 is not influenced, the contact area of a limiting area is increased, stress in a unit area is reduced, no additional torque is generated, accordingly, violent vibration at a limiting extreme position is avoided, and abrasion between the limiting portion in the sleeve 10 and the drum gear 20 is reduced, thereby improving the stability during operation and prolonging the service life of the drum gear coupling. Further, a spherical center of the first spherical surface 221 may coincide with a spherical center of the second spherical surface, which may further improve the stability of the drum gear coupling during operation.
In the present embodiment, a first step 111 is arranged on the inner peripheral surface of the barrel 11, the first limiting portion 30 has a tubular structure, a second step 32 is arranged on an outer peripheral surface of the first limiting portion 30, and the second step 32 matches the first step 111 in a limiting manner. By means of cooperation between the second step 32 and the first step 111, the first limiting portion 30 may be limited in the axial direction of the sleeve 10, so as to make the first limiting portion 30 limit the axial direction of the drum gear 20.
In the present embodiment, a third through hole 25 may further be provided in the extension portion 22 for communicating cavities on two sides of the extension portion 22, which facilitates gas flow. Under the condition that the cavities on the two sides of the extension portion 22 are sealed separately, when the extension portion 22 moves, pressure in the cavities may be changed greatly, which may bring damage of unstable operation to the drum gear coupling. After the third through hole 25 communicates the cavities on the two sides of the extension portion 22, the pressure in different cavities may be balanced, and therefore the risk of unstable operation of the drum gear coupling is avoided.
In the present embodiment, the gear drum coupling includes two sleeves 10, two drum gears 20 and two annular sealing portions 50, the two sleeves 10 being connected to each other, the two drum gears 20 and the two sleeves 10 being arranged in a one-to-one correspondence manner, and the two annular sealing portions 50 and the two sleeves 10 being arranged in a one-to-one correspondence manner. By means of the above arrangement, one drum gear coupling may be configured for connecting two shaft components to achieve torque transmission, and relative displacement of the 11 DnI)Q1All two shaft components may be compensated.
As shown in Fig. 5, in Embodiment 2 of the present invention, in contrast to the above embodiment, the second limiting portion 60 is configured for abutting against the extension portion 22 of the drum tooth portion 23, and the sleeve 10 further includes a second end cap 13 connected to the end of the barrel 11, the second end cap 13 being arranged in a radial direction of the barrel 11, the second end cap 13 having a center hole allowing the sleeve body 21 to penetrate there, and the second end cap 13 forming the second limiting portion 60. By means of the above arrangement, the sleeve 10 has a function of limiting the drum tooth portion 23, and the barrel 11 and the second limiting portion 60 are of an integrally-formed structure, which improves the structural strength.
In the present embodiment, the second end of the annular sealing portion 50 is connected to the second end cap 13 by a fastener 44. This facilitates disassembly and assembly between the annular sealing portion 50 and the second end cap 13.
In the present embodiment, the annular sealing portion 50 includes a skeleton 51, a sealing member 52 and a support member 53, the sealing member 52 and the support member 53 being connected to two sides of the skeleton 51 separately, wherein the support member 53 is connected to the second end cap 13, and the sealing member 52 makes contact with the first arc-shaped surface 211. By means of the above arrangement, the strength of the annular sealing portion 50 may be improved, and the service life is prolonged.
In the present embodiment, an end surface of the first limiting portion 30 abuts against an end surface of the inner tooth portion 12. The end surface of the first limiting portion 30 abuts against the end surface of the inner tooth portion 12, so as to limit the first limiting portion 30.
Further, the first limiting portion 30 has a tubular structure, and a seal ring 41 is arranged between an outer wall of the first limiting portion 30 and an inner wall of the barrel 11. By arranging the seal ring 41, the sealing performance of the drum gear coupling may be improved, a lubricating medium in the drum gear coupling is prevented from leaking out, which guarantees the lubricating effect. The lubricating medium is preferably lubricating grease.
In the present embodiment, the drum gear coupling further includes: a clamping ring 42, wherein a part of the clamping ring 42 is embedded into the inner wall of the barrel 11, and the other part of the clamping ring 42 abuts against one end surface of the first limiting portion 30. In this way, the first limiting portion 30 may be limited in a direction away from the inner tooth portion 12 by means of the clamping ring 42, so as to prevent the first limiting portion 30 from moving.
Further, the first limiting portion 30 has a tubular structure, the first limiting portion 30 is 12 DnI210AII provided with a first through hole 33, the first through hole 33 is configured for balancing air pressure and may also be used as a lubricating grease flowing channel for lubricating the limiting area and reducing abrasion; and the first through holes 33 may be uniformly arranged in a circumferential direction, and preferably two or more first through holes are symmetrically arranged. Certainly, no first through hole 33 may be provided.
Further, as shown in Fig. 5, the first limiting portion 30 has a tubular structure, and the first limiting portion 30 includes a limiting ring close to the inner tooth portion, a clamping ring and a center plate sequentially, a seal ring being arranged between the limiting ring and the inner wall of the barrel of the sleeve, one end of the clamping ring making contact with the limiting ring, the other end thereof making contact with an end surface of the center plate, and a seal ring is further arranged between the center plate and the inner wall of the barrel of the sleeve. An outer peripheral wall of the clamping ring is partially embedded into the groove in the inner wall of the barrel of the sleeve, so as to achieve the effects of limiting the limiting ring and the center plate. The central plate is provided with a conical hole with a reduced inner diameter, which may block the lubricating medium.
As shown in Fig. 5, the barrel 11 is provided with a second through hole, the second through hole may be in communication with the first through hole 33 or not, and the gear drum coupling further includes: a plug 43, the plug 43 being configured for plugging the second through hole. In this way, the lubricating medium may be added from the outside into the barrel 11, and after addition, the plug 43 is configured for plugging. The barrel 11 may be provided with no second through hole, such that no plug 43 is arranged, and lubricating oil may be added into the cavity of the sleeve 10 directly during assembly to lubricate the inner tooth portion, the drum tooth portion and other portions.
In the present embodiment, the inner peripheral surface of the sleeve body 21 of the drum gear is provided with an oil guide groove 214. In this way, when an electric motor shaft or other shaft components installed in the sleeve body 21 are disassembled and assembled, pressure oil may be injected into the oil guide groove 214 to reduce friction.
In the present embodiment, the gear drum coupling further includes: a bushing 70 arranged on the inner peripheral surface of the sleeve body 21, wherein an outer peripheral surface of the bushing is in interference fit with the inner peripheral surface of the sleeve body 21. The bushing 70 is configured for the electric motor shaft or other shaft components to be installed. The shaft component is in interference fit with an inner peripheral surface of the bushing 70, but the amount of interference is lower than the amount of interference between an outer peripheral surface of the bushing 70 and the inner peripheral surface of the sleeve body 21. In this way, when the shaft component is overloaded, the shaft component may axially slide relative to the bushing 70 so as to prevent the
13 DnI210AII component from being damaged, which achieves the overload protection effect.
As shown in Fig. 6, in Embodiment 3 of the present invention, in contrast to Embodiment 2, an inner end surface of the second end cap 13 is provided with a groove, the second end of the annular sealing portion 50 is interference fit in the groove of the second end cap 13. By means of interference fit, the connection strength of the annular sealing portion 50 may be improved, meanwhile, space may be saved, and disassembly and maintenance are facilitated.
In the present embodiment, the annular sealing portion 50 includes a skeleton 51 and a sealing member 52 connected to the skeleton 51, wherein the skeleton 51 is connected to the second end cap 13, and the sealing member 52 makes contact with the first arc-shaped surface 211. Specifically, the annular sealing portion 50 includes a skeleton 51 and a sealing member 52 vulcanized integrally with the skeleton 51, a larger-diameter end with support of the skeleton 51 and a smaller-diameter end without support of the skeleton 51 are formed, the larger-diameter end defines a second end of the annular sealing portion 50 and is in interference fit in a groove of the second end cap 13, and the smaller-diameter end defines a first end of the annular sealing portion 50 and makes sliding contact with the first arc-shaped surface 211. In Embodiment 3, the drum tooth portion 23 may make contact with the end cap for limiting, and may also make contact with a certain appropriate end surface of the larger-diameter end of the annular sealing portion 50 for limiting according to space allowance and process requirements.
In addition, in Embodiment 3 of the present invention, in contrast to Embodiment 2, the first limiting portion 30 is provided with no center plate and only includes a limiting ring and a clamping ring, and a third spherical surface 31 matching with the first spherical surface 221 on the extension portion of the drum gear is arranged in an inner hole wall of the limiting ring.
Fig. 7 is a schematic structural diagram of the drum gear coupling in Fig. 6 in a tilted position, wherein the right half coupling connected to an input shaft of a gear box is in an upward radial displacement state, and the limiting portion of the sleeve of the left half coupling connected to an output shaft of the electric motor side makes contact with the first spherical surface on the extension portion of the drum gear, which achieves the limiting effect and avoids violent impact.
Compared with the related art, the present invention has obvious technical advantages. On one hand, since the present invention uses slide sealing matching between the drum gear with the arc shaped surface and the annular sealing portion 50, even contact sealing and minimum elastic deformation of the sealing member at different deflection positions may be ensured to the maximum extent, which scientifically solves the common problems of poor sealing of a drum gear coupling, and non-uniform abrasion and short service life of a sealing member in the related art for a long time; 14 DnI210AII and meanwhile, the drum gear with the arc-shaped surface optimally matches the second end cap and the annular sealing portion 50, so as to guarantee the sealing reliability and the long service life of the drum gear coupling. Therefore, the drum gear coupling provided in the present invention is reliable in sealing, the sealing effect of the lubricating medium may be effectively improved, and the sealing performance of the drum gear coupling is improved; on the other hand, since the drum gear with the arc-shaped surface, a spherical limiting structure and other optimal designs with the compact structure are used, the additional torque generated in the operation process of the drum gear coupling may be effectively eliminated, the balance and stability of the coupling in the operation process are enhanced, accordingly, the coupling is stable and reliable in drive and high in displacement compensation capacity, the overall structure is simple and compact, and light weight and miniaturization design may be achieved more easily; and meanwhile, the drum gear with the arc-shaped surface, the second end cap 13 and the annular sealing portion 50 are simple in structure and convenient to manufacture and replace, and therefore the drum gear coupling provided in the present invention further has the obvious advantages of being convenient to manufacture, assemble, disassemble and maintain and low in maintenance and application cost.
Another embodiment of the present invention further provides a gear drive system, including the drum gear coupling provided above. Specifically, the gear drive system further includes a drive gear box, wherein an input shaft of the drive gear box is in conical interference fit with an inner peripheral surface of an inner hole of a sleeve body 21 of a drum gear 20 of the drum gear coupling. According to the technical solution of the present invention, the inner tooth portion 12 is arranged in the barrel 11 of the sleeve 10 of the drum gear coupling, the drum tooth portion 23 is arranged on the extension portion 22 of the drum gear 20, in this way, the drum gear 20 swings and axially moves relative to the sleeve 10 by means of cooperation between the drum tooth portion 23 and the inner tooth portion 12, and sealing is conducted by means of cooperation between the annular sealing portion 50 and the sleeve body 21. Since the outer peripheral surface of the sleeve body 21 of the drum gear 20 is provided with the first arc-shaped surface 211, when the drum gear 20 deflects relative to the sleeve , the circumferential direction of the annular sealing portion 50 makes uniform contact with the first arc-shaped surface 211 of the sleeve body 21 for sealing. Therefore, on one hand, the good sealing effect of the drum gear coupling at different deviation positions may be guaranteed, and on the other hand, the different contact portions of the annular sealing portion 50 are evenly abraded, thereby improving reliability of the gear drive system.
In conclusion, the drum gear coupling provided in the present invention is compact in structure, reliable in sealing, high in bearing capacity, large in displacement compensation capacity, high in 15 DnI210AII drive stability, long in service life and convenient to maintain, may be suitable for various drive mechanisms, and is particularly suitable for a drive apparatus which is high in coupling drive requirement and has complex and variable operation working conditions, especially for a rail vehicle gear drive system in which an output shaft of an electric motor and a high-speed shaft of a gear box are not aligned in various road conditions of rail traffic.
The foregoing is merely the preferred embodiments of the present invention and is not intended to limit the present invention, and various changes and modifications may be made by those skilled in the art. Any modifications, equivalent substitutions, improvements, and the like within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.
16 DnI210AII
Claims (29)
1. A drum gear coupling, comprising:
a sleeve (10), wherein the sleeve (10) comprises a barrel (11) and an inner tooth portion (12) arranged on an inner peripheral surface of the barrel (11);
a drum gear (20), wherein at least part of the drum gear (20) is arranged in a cavity of the sleeve (10), the drum gear (20) comprises a sleeve body (21), an extension portion (22) and a drum tooth portion (23), the extension portion (22) extends from a first end of the sleeve body (21) to a second end of the sleeve body (21), an annular gap (24) provided with an opening is formed between the extension portion (22) and the sleeve body (21), the drum tooth portion (23) is arranged on an outer peripheral surface of the extension portion (22), the drum tooth portion (23) meshes with the inner tooth portion (12), the drum gear (20) is swing and axially move relative to the sleeve (10), and an outer peripheral surface of the sleeve body (21) is provided with a first arc-shaped surface (211) protruding outwards; and
an annular sealing portion (50), wherein the annular sealing portion (50) sleeves the outer peripheral surface of the sleeve body (21), a first end of the annular sealing portion (50) makes contact with the first arc-shaped surface (211), and a second end of the annular sealing portion (50) is connected to the barrel (11) directly or indirectly.
2. The drum gear coupling according to claim 1, wherein a plane perpendicular to an axial direction of the drum tooth portion (23) and passing through a midpoint of a width of the drum tooth portion (23) is a central plane, and a highest point of the first arc-shaped surface (211) is located on the central plane.
3. The drum gear coupling according to claim 1, wherein the first arc-shaped surface (211) is a spherical surface.
4. The drum gear coupling according to claim 3, wherein a surface where tooth tip of the drum tooth portion (23) is a second spherical surface, and a spherical center of the first arc-shaped surface (211) coincides with a spherical center of the second spherical surface.
5. The drum gear coupling according to claim 1, wherein the sleeve body (21) comprises a first sleeve section (212) and a second sleeve section (213) which are connected in sequence, the extension portion (22) surrounds the first sleeve section (212) and extends towards the second sleeve section (213), and the first arc-shaped surface (211) is located on an outer peripheral surface of the second sleeve section (213).
17 DnI214AII
6. The drum gear coupling according to claim 5, wherein the outer peripheral surface of the second sleeve section (213) is a spherical surface, or the outer peripheral surface of the second sleeve section (213) consists of a spherical surface and a cylindrical surface.
7. The drum gear coupling according to claim 1, wherein the drum gear coupling further comprises:
a limiting structure connected to the barrel (11), wherein the limiting structure is configured for limiting a moving range of the drum gear (20), and the second end of the annular sealing portion (50) is arranged on the limiting structure.
8. The drum gear coupling according to claim 7, wherein the limiting structure comprises:
a second limiting portion (60), the second limiting portion (60) being connected to an end of the barrel (11), the second limiting portion (60) being located on one side, provided with the annular gap (24), of the drum gear (20), and the second limiting portion (60) being configured for abutting against the sleeve body (21) of the drum gear (20) or the extension portion (22) of the drum gear (20), and
the second end of the annular sealing portion (50) is fixedly provided on the second limiting portion (60).
9. The drum gear coupling according to claim 8, wherein the second limiting portion (60) is configured for abutting against the sleeve body (21) of the drum gear (20), and the second limiting portion (60) is provided with a second arc-shaped surface (61) matching with the first arc-shaped surface (211).
10. The drum gear coupling according to claim 9, wherein the second limiting portion (60) comprises:
a first end cap (62), a larger-diameter end of the first end cap (62) being connected to the end of the barrel (11); and
a limiting member (63) arranged at a smaller-diameter end of the first end cap (62), the second arc-shaped surface (61) being arranged on the limiting member (63), and the second end of the annular sealing portion (50) being connected to the limiting member (63) or the first end cap (62).
11. The drum gear coupling according to claim 10, wherein the first end cap (62) comprises an annular member arranged in a radial direction of the barrel (11) and a tubular member arranged in an axial direction of the barrel (11), the annular member being connected to the end of the barrel (11), the tubular member being located on one side, facing the extension portion (22) of the drum tooth
18 DnI210AII portion (23), of the annular member, and the limiting member (63) being connected to an inner wall of the tubular member.
12. The drum gear coupling according to claim 8, wherein the second limiting portion (60) is configured for abutting against the extension portion (22) of the drum tooth portion (23), and the sleeve (10) further comprises a second end cap (13) connected to the end of the barrel (11), the second end cap (13) being arranged in a radial direction of the barrel (11), the second end cap (13) having a center hole configured for the sleeve body (21) passing through, and the second end cap (13) forming the second limiting portion (60).
13. The drum gear coupling according to claim 12, wherein the second end of the annular sealing portion (50) is connected to the second end cap (13) by a fastener (44).
14. The drum gear coupling according to claim 12, wherein an inner end surface of the second end cap (13) is provided with a groove, and the second end of the annular sealing portion (50) is interference fit in the groove of the second end cap (13).
15. The drum gear coupling according to claim 12, wherein the annular sealing portion (50) comprises a skeleton (51), a sealing member (52) and a support member (53), the sealing member (52) and the support member (53) being connected to two sides of the skeleton (51) separately, wherein the support member (53) is connected to the second end cap (13), and the sealing member (52)makes contact with the first arc-shaped surface (211).
16. The drum gear coupling according to claim 8, wherein one side, away from the annular gap (24), of the extension portion (22) of the drum gear (20) is provided with a first spherical surface (221), and the limiting structure further comprises:
a first limiting portion (30) fixed in the cavity of the barrel (11) of the sleeve (10), thefirst limiting portion (30) being located on the side, away from the annular gap (24), of the extension portion (22), and the first limiting portion (30) being provided with a third spherical surface (31), wherein the third spherical surface (31) matches with the first spherical surface (221) to limit a moving distance of the drum gear (20).
17. The drum gear coupling according to claim 16, wherein a first step (111) is arranged on the inner peripheral surface of the barrel (11), the first limiting portion (30) has a tubular structure, a second step (32) is arranged on an outer peripheral surface of the first limiting portion (30), and the second step (32) matches the first step (111) in a limiting manner.
18. The drum gear coupling according to claim 16, wherein an end surface of the first limiting
19 DnI210AII portion (30) abuts against an end surface of the inner tooth portion (12).
19. The drum gear coupling according to claim 16, wherein the first limiting portion (30) has a tubular structure, and a seal ring (41) is arranged between an outer wall of the first limiting portion (30) and an inner wall of the barrel (11).
20. The drum gear coupling according to claim 18, the drum gear coupling further comprises:
a clamping ring (42), wherein a part of the clamping ring (42) is embedded into the inner wall of the barrel (11), and the other part of the clamping ring (42) abuts against one end surface, away from the inner tooth portion (12), of the first limiting portion (30).
21. The drum gear coupling according to claim 16, wherein the first limiting portion (30) has a tubular structure, and the first limiting portion (30) has afirst through hole (33).
22. The drum gear coupling according to claim 21, wherein the barrel (11) is provided with a second through hole, the second through hole is in communication with the first through hole (33), and the gear drum coupling further comprises:
a plug (43), the plug (43) being configured for plugging the second through hole.
23. The drum gear coupling according to claim 1, wherein the extension portion (22) is provided with a third through hole (25), and the third through hole (25) is configured for communicating cavities on two sides of the extension portion (22).
24. The drum gear coupling according to claim 1, wherein the inner peripheral surface of the sleeve body (21) of the drum gear (20) is provided with an oil guide groove (214).
25. The drum gear coupling according to claim 1, the drum gear coupling further comprises:
a bushing (70) arranged on the inner peripheral surface of the sleeve body (21), wherein an outer peripheral surface of the bushing (70) is in interference fit with the inner peripheral surface of the sleeve body (21).
26. The drum gear coupling according to claim 1, the drum gear coupling further comprises two sleeves (10), two drum gears (20) and two annular sealing portions (50), the two sleeves (10) being connected to each other, the two drum gears (20) and the two sleeves (10) being arranged in a one to-one correspondence manner, and the two annular sealing portions (50) and the two sleeves (10) being arranged in a one-to-one correspondence manner.
27. The drum gear coupling according to claim 11, wherein the annular sealing portion (50) comprises a skeleton (51) and a sealing member (52) vulcanized integrally with the skeleton (51), the 20 DnI214AII skeleton (51) being interference fit in a groove in the inner wall of the tubular member of the first end cap (62), and the sealing member (52) making sliding contact with the first arc-shaped surface (211).
28. The drum gear coupling according to claim 14, wherein the annular sealing portion (50) comprises a skeleton (51) and a sealing member (52) vulcanized integrally with the skeleton (51), the skeleton (51) being interference fit in a groove in the second end cap (13), and the sealing member (52) making sliding contact with the first arc-shaped surface (211).
29. A gear drive system, comprising the drum gear coupling according to any one of claims 1-28, and further comprising a drive gear box, wherein an input shaft of the drive gear box is in conical interference fit with an inner peripheral surface of a sleeve body (21) of a drum gear (20) of the drum gear coupling.
21 DnI210AII
Fig. 1
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Fig. 2
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Fig. 3
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Fig. 4
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Fig. 5
/7 P0319AU
Fig. 6
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Fig. 7
7/7 P0319AU
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/125035 WO2020133263A1 (en) | 2018-12-28 | 2018-12-28 | Drum-shaped gear coupling and gear drive system provided with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2018454882A1 true AU2018454882A1 (en) | 2021-08-12 |
| AU2018454882B2 AU2018454882B2 (en) | 2023-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2018454882A Active AU2018454882B2 (en) | 2018-12-28 | 2018-12-28 | Drum-shaped gear coupling and gear drive system provided with same |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU2018454882B2 (en) |
| WO (1) | WO2020133263A1 (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29506461U1 (en) * | 1995-04-15 | 1995-06-22 | Renk Tacke Gmbh | Double joint coupling |
| BE1010639A3 (en) * | 1996-09-20 | 1998-11-03 | Paul Egide Boucquey | Clutch transmission. |
| CN203214684U (en) * | 2013-04-23 | 2013-09-25 | 中国汽车工程研究院股份有限公司 | Gear coupler for crowned teeth |
| DE102015007711A1 (en) * | 2015-06-17 | 2016-12-22 | HENKE Property UG (haftungsbeschränkt) | Double toothed coupling for connecting a driven shaft to a driven shaft |
| CN205503800U (en) * | 2016-03-28 | 2016-08-24 | 长春德尔邦汽车部件有限公司 | A shaft coupling that is used for agglomeration machine equipment |
| CN105972107B (en) * | 2016-06-30 | 2019-02-19 | 泰尔重工股份有限公司 | A kind of high performance crown gear coupling |
| CN205937557U (en) * | 2016-06-30 | 2017-02-08 | 泰尔重工股份有限公司 | High -performance crown gear coupling |
| CN106438735A (en) * | 2016-11-18 | 2017-02-22 | 泰尔重工股份有限公司 | Track-traffic crowned tooth shaft coupler |
| JP2020512515A (en) * | 2017-03-31 | 2020-04-23 | デーナ、オータモウティヴ、システィムズ、グループ、エルエルシー | Constant velocity joint assembly |
| CN207621196U (en) * | 2017-08-23 | 2018-07-17 | 沈阳鼓风机集团核电泵业有限公司 | A kind of drum-type gear coupling applied to axle envelope type core main pump |
-
2018
- 2018-12-28 WO PCT/CN2018/125035 patent/WO2020133263A1/en active Application Filing
- 2018-12-28 AU AU2018454882A patent/AU2018454882B2/en active Active
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| AU2018454882B2 (en) | 2023-09-21 |
| WO2020133263A1 (en) | 2020-07-02 |
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