CN113864321B - Axial large-expansion drum-shaped gear coupling with good lubricating performance - Google Patents
Axial large-expansion drum-shaped gear coupling with good lubricating performance Download PDFInfo
- Publication number
- CN113864321B CN113864321B CN202111094739.XA CN202111094739A CN113864321B CN 113864321 B CN113864321 B CN 113864321B CN 202111094739 A CN202111094739 A CN 202111094739A CN 113864321 B CN113864321 B CN 113864321B
- Authority
- CN
- China
- Prior art keywords
- grease
- transmission shaft
- lubricating
- hole
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
- F16C3/03—Shafts; Axles telescopic
-
- 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
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/36—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with feed by pumping action of the member to be lubricated or of a shaft of the machine; Centrifugal lubrication
- F16N7/363—Centrifugal lubrication
Abstract
The invention discloses an axial large-expansion drum-shaped gear coupling with good lubricating property, which comprises a roller end assembly, a driving end assembly and an expansion transmission shaft assembly; the telescopic transmission shaft assembly comprises a telescopic shaft, a transition shaft sleeve, a transmission shaft, a protective cover and a spring assembly, wherein the telescopic shaft comprises a left end transmission shaft, an intermediate shaft, a right end transmission shaft and a sectional type lubricating system; the sectional type lubricating system comprises a lubricating system of a right-end transmission shaft, and comprises an L-shaped grease inlet hole arranged in the middle of the lubricating system, an annular grease storage tank arranged on the right section of the lubricating system, and a main lubricating oil path arranged at the tooth top of the external rectangular spline; the main lubricating oil way comprises a plurality of main lubricating units, and each main lubricating unit comprises a main transverse oil way, a grease outlet hole and two symmetrical grease outlet holes. The invention can effectively lubricate the telescopic part and prolong the service life of the coupler. Meanwhile, the oil storage function can be realized, the repeated utilization of lubricating grease is realized, and the production efficiency of the whole steel rolling production line is improved.
Description
Technical Field
The invention relates to the technical field of lubrication of drum-shaped gear couplings in steel rolling machinery, in particular to lubrication of a crowned tooth coupling with axial large telescopic displacement.
Background
The crowned tooth coupler consists of two pairs of inner gear rings and outer crowned gears which are meshed with each other, wherein the outer gears have certain crowned tooth shapes and allow small-amplitude angular displacement and axial displacement between the inner gear rings and the crowned gears, so that a driving shaft and a driven shaft which are connected with two ends of the coupler simultaneously perform deflection motion in the rotating process. The unique self-compensating inter-shaft inclination angle and axial displacement of the crowned tooth coupling can be adjusted, so that the crowned tooth coupling is widely applied to heavy mechanical equipment such as steel rolling machinery and rail transit.
In a steel rolling production line, when the distance between two connecting shafts which are used for transmission is uncertain, the crowned tooth coupling is required to have the function of large axial displacement and expansion, so that long-distance power transmission can be met, and the axial displacement can be freely adjusted in a larger range. In a conventional crowned gear coupling, a drum gear at a movable end is matched with an inner gear ring through a gear pair, and the drum gear slides in long teeth in the inner gear ring to adjust axial displacement between two connecting shafts. Because the gear pair contact form is point contact, the axial sliding process has larger contact stress, and the phenomenon of tooth surface abrasion is easy to occur. Meanwhile, the axial length of the gear teeth of the inner gear ring is limited, the moving distance of the drum-shaped gear in the inner gear ring is limited, the telescopic range of the connecting shaft is small, and the application occasions of the drum-shaped gear in the production field of steel rolling machinery are greatly limited.
Patent CN 211423204U discloses a long telescopic crowned tooth coupling, in which an inner gear ring is connected with a connecting shaft by a tooth-like spline pair, the tooth-like spline pair is connected by an inner spline and an outer spline, both the inner spline and the outer spline are multi-tooth parts, the spline on the inner cylindrical surface is an inner spline, and the spline on the outer cylindrical surface is an outer spline. The inner gear ring moves telescopically along the connecting shaft, and the connecting shaft transmits torque through the spline pair to drive the inner gear ring to rotate. The spline pair has larger contact area and small contact stress in the telescopic process, and the defect of axial sliding of the gear pair is overcome. However, since the axial distance of the spline pair is long, lubricating oil supplied from the end face of the spline pair is difficult to enter between the contact surfaces, the lubricating effect is poor, and the phenomenon of serious abrasion of the contact surfaces cannot be avoided.
Patent CN 112524167 a discloses a drum-shaped gear coupling with axial large expansion function, which adopts a ball spline pair transmission scheme at the axial expansion position, thus having axial large expansion function and good lubricating performance. Meanwhile, the coupler lubricating system adopts a sectional grease lubricating mode, so that the lubricating quality and the transmission part abrasion defect are effectively improved, and the working requirement of metallurgical transmission equipment is met. The disadvantages are that: firstly, the contact area of the ball spline pair is small, the transfer torque force is limited, and the phenomenon of serious abrasion of the contact surface can not be avoided under the severe working condition on site, so that the transmission precision and the service life of the coupler are influenced; and secondly, the lubricating system can not store oil, and needs to be frequently stopped and added with lubricating grease, so that the production efficiency of a steel rolling production line is reduced.
To sum up, for satisfying the big actual needs of adjustable and transmission moment on a large scale of power transmission distance among the steel rolling production line, need to develop a novel big flexible crowned tooth shaft coupling of axial urgently, and when realizing the big flexible function of shaft coupling axial, how to solve the lubrication and the wearing and tearing problem of big flexible in-process transmission moment big kinematic pair is the heavy center.
Disclosure of Invention
The invention aims to provide an axial large-telescopic drum-shaped tooth coupler with good lubricating property, which can effectively lubricate a telescopic part and prolong the service life of the coupler. Meanwhile, the oil storage function can be realized, the repeated utilization of lubricating grease is realized, and the production efficiency of the whole steel rolling production line is improved. In addition, the large torque transmission is ensured while the large telescopic function is realized.
The invention relates to an axial large-telescopic drum-shaped tooth coupler with good lubricating property, which comprises a roller end component at the left end, a driving end component at the right end and a telescopic transmission shaft component in the middle, wherein two ends of the telescopic transmission shaft component are respectively connected with the roller end component and the driving end component; the telescopic transmission shaft assembly comprises a left telescopic shaft, a middle transition shaft sleeve, a right transmission shaft, a protective cover and a spring assembly, the telescopic shaft comprises a left end transmission shaft, an intermediate shaft, a right end transmission shaft and a sectional type lubricating system, and the left end and the right end of the intermediate shaft are respectively connected with the left end transmission shaft and the right end transmission shaft through flange surfaces; the left end of the left end transmission shaft is connected with the roller end assembly, the right end outer circle of the right end transmission shaft is connected with the inner hole of the transition shaft sleeve through a rectangular spline pair, the transition shaft sleeve is fixedly connected with the transmission shaft, the transmission shaft is connected with the driving end assembly, the protection cover is sleeved outside the right end telescopic shaft and the transition shaft sleeve, and the spring assembly is arranged in the inner hole of the right end telescopic shaft; the sectional type lubricating system comprises a lubricating system of a right-end transmission shaft, and comprises an L-shaped grease inlet hole arranged in the middle of the lubricating system, an annular grease storage tank arranged on the right section of the lubricating system, and a main lubricating oil path arranged at the tooth top of the external rectangular spline; the main lubricating oil way comprises a plurality of main lubricating units, and each main lubricating unit comprises a main transverse oil way, a grease outlet hole and two symmetrical grease outlet holes; the main transverse oil way is axially arranged at the top of the outer rectangular spline, the grease outlet hole is arranged in the middle of the transverse oil way, the other end of the grease outlet hole is communicated with the grease storage bin, and the grease outlet hole is used for communicating the main transverse oil way with the two sides of the spline; the horizontal hole intercommunication fat storehouse, the perpendicular hole opening of L type advance fat hole just are located the outside of protection casing on the excircle of right-hand member transmission shaft.
Further, the number of the L-shaped grease inlet holes is determined according to the size of the rectangular spline pair, and is preferably 1-4.
Further, the main lubricating unit is arranged at the top of each outer rectangular spline tooth or uniformly distributed at the top of each outer rectangular spline tooth.
Furthermore, the lubricating system of the right-end transmission shaft further comprises an auxiliary lubricating oil path arranged on the tooth side of the outer rectangular spline, the auxiliary lubricating oil path comprises a plurality of auxiliary lubricating units, and the auxiliary lubricating units are symmetrically arranged on two sides of each main lubricating unit; each auxiliary lubricating unit comprises an auxiliary transverse oil way and two symmetrical grease introducing holes; the auxiliary transverse oil path is arranged on the tooth side of the outer rectangular spline along the axial direction, the upper part of the grease introducing hole is communicated with the auxiliary transverse oil path and the grease leading-out hole, and the lower part of the grease introducing hole is communicated with the tooth bottom of the outer rectangular spline.
Further, depending on the height of the flanks of the external rectangular spline, one to two auxiliary lubrication units may be provided per flank.
Furthermore, the lubricating system of right-hand member transmission shaft still includes the L type grease returning hole of setting in its right side section, and the cross bore intercommunication grease storage storehouse of L type grease returning hole, perpendicular hole opening just are located the inboard of protection casing on the non-spline department excircle of right-hand member transmission shaft right side section.
Further, the number of the L-shaped grease returning holes is determined according to the size of the rectangular spline pair.
Furthermore, the sectional type lubricating system also comprises a lubricating system of the left end transmission shaft, which comprises a grease inlet hole, a cavity and a grease outlet hole; one end of a transverse hole of the grease inlet hole is communicated with the radial through hole and the other end of the transverse hole is communicated with the cavity, and one end of the radial grease outlet hole is communicated with the cavity and the other end of the transverse hole is opened on the excircle of the left-end transmission shaft and is positioned in the roller end assembly.
Furthermore, the lubricating system of the right end transmission shaft further comprises a lubricating system arranged at the left section of the lubricating system, the lubricating system comprises a grease inlet hole of the spring assembly, one end of the grease inlet hole of the spring assembly is opened on the excircle at the middle part of the right end telescopic shaft, and the other end of the grease inlet hole of the spring assembly is communicated with the inner hole of the right end telescopic shaft.
Furthermore, the telescopic transmission shaft assembly also comprises a baffle ring and a limiting ring; the right-hand member at the telescopic shaft is fixed to the spacing ring, keeps off the ring and fixes the left end at the transmission shaft.
The axial large-expansion drum-shaped tooth coupling has the advantages that: 1. when the crowned tooth coupler works, lubricating grease in an oil storage is pressed into the whole rectangular spline pair by centrifugal force generated by rotation, so that the telescopic part is effectively lubricated, abnormal abrasion of a transmission part is avoided, and the service life of the coupler is prolonged; 2. when the drum-shaped gear coupling contracts axially, lubricating grease returns to the oil storage warehouse through the grease return hole for oil storage, so that the lubricating grease is recycled, the lubricating grease is not required to be added frequently, the number of times of on-site shutdown oiling is reduced, the production cost is reduced, and the production efficiency of the whole steel rolling production line is improved; 3. the axial expansion of the coupler replaces the sliding friction of a traditional gear pair or a tooth-type spline pair by the transmission of a large-diameter centering rectangular spline pair, so that the axial large expansion function of the coupler is realized; the contact area in the axial sliding process of the large-diameter centering rectangular spline pair is large, the torque is transmitted stably and reliably, and the large torque transmission is realized.
Drawings
Fig. 1 is a schematic structural view (extended state) of the axial large telescopic crowned tooth coupling of the present invention.
Fig. 2 is a schematic structural view of the telescopic shaft.
Fig. 3 is a right side view of fig. 2.
Fig. 4 is a view taken along direction a in fig. 3.
Fig. 5 is a top view of fig. 4.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the drawings. The invention is not limited to the specific embodiments described below but may comprise further embodiments within the inventive idea.
Example 1
As can be seen from fig. 1, 2, 3 and 4, the axial large telescopic drum-shaped gear coupling with good lubricating performance comprises a roller end component at the left end, a driving end component at the right end and a middle telescopic transmission shaft component, wherein two ends of the telescopic transmission shaft component are respectively connected with the roller end component and the driving end component; the telescopic transmission shaft assembly comprises a left telescopic shaft 4, a middle transition shaft sleeve 6, a right transmission shaft 7, a protective cover 5 and a spring assembly 11, the telescopic shaft 4 comprises a left end transmission shaft 41, an intermediate shaft 42, a right end transmission shaft 43 and a sectional type lubricating system, and the left end and the right end of the intermediate shaft 42 are respectively connected with the left end transmission shaft 41 and the right end transmission shaft 43 through flange surfaces; the left end of the left end transmission shaft 41 is connected with the roller end assembly, the right end excircle of the right end transmission shaft 43 is connected with the inner hole of the transition shaft sleeve 6 through a rectangular spline pair, the transition shaft sleeve 6 is fixedly connected with the transmission shaft 7, the transmission shaft 7 is connected with the driving end assembly, the protective cover 5 is sleeved outside the right end telescopic shaft 43 and the transition shaft sleeve 6, and the spring assembly 11 is arranged in the inner hole of the right end telescopic shaft 43; the sectional type lubricating system comprises a lubricating system of a right-end transmission shaft 43, which comprises an L-shaped grease inlet hole 45 arranged in the middle of the lubricating system, an annular grease storage 44 arranged at the right section of the lubricating system, and a main lubricating oil path arranged at the tooth top of an external rectangular spline; the main lubricating oil path comprises a plurality of main lubricating units, and each main lubricating unit comprises a main transverse oil path 103, a grease outlet hole 104 and two symmetrical grease outlet holes 105; the main transverse oil path 103 is arranged at the top of the outer rectangular spline along the axial direction, the grease outlet hole 104 is arranged in the middle of the transverse oil path 103, the other end of the transverse oil path is communicated with the grease storage 44, and the grease outlet hole 105 is used for communicating the main transverse oil path 103 with the two sides of the spline; the horizontal hole of the L-shaped grease inlet hole 45 is communicated with the grease storage 44, and the vertical hole is opened on the excircle of the right end transmission shaft 43 and is positioned at the outer side of the protective cover 5.
The number of the L-shaped grease inlet holes 45 is determined according to the size of the rectangular spline pair, and is preferably 1-4; the main lubricating units are arranged at the top of each outer rectangular spline tooth or are uniformly distributed at the top of each outer rectangular spline tooth.
Wherein, the small hole at the left end of the protective cover 5 is sleeved on the right telescopic shaft 43, and the contact surface of the two is provided with a sealing ring; the big hole at the right end of the protective cover 5 is sleeved on the transition shaft sleeve 6 and is fixedly connected with the transition shaft sleeve 6. The large-diameter centering rectangular spline pair has large contact area in the axial sliding process, is stable and reliable in torque transmission, and realizes large axial expansion and large torque transmission.
When the crowned tooth coupling works, the centrifugal force generated during rotation presses the lubricating grease in the grease storage into the rectangular spline pair for grease supply lubrication: grease is introduced from the L-shaped grease inlet hole 45 and stored in the grease reservoir 44, and the grease in the grease reservoir 44 flows to the main lateral oil passage 103 through the grease outlet hole 104 and to both flanks through the grease outlet holes 105. Lubricating grease at the main transverse oil path 103 lubricates the tooth tops of the external rectangular splines and the tooth bottoms of the internal rectangular splines; the grease discharged from the grease discharge hole 105 lubricates the flanks of the internal and external rectangular splines, the bottoms of the external rectangular splines, and the crests of the internal rectangular splines. The grease storage 44 can continuously provide lubricating grease for the rectangular spline pair for lubrication, and the main transverse oil path 103 has a certain oil storage function, so that better lubrication can be achieved.
The crowned tooth coupling effectively realizes the lubrication of the contact surface of the telescopic part, namely the rectangular spline pair, through the lubricating system, has good lubricating effect, delays the abrasion of the contact surface and prolongs the service life of the crowned tooth coupling. Meanwhile, the crowned tooth coupling realizes continuous grease supply through the grease storage warehouse, does not need to frequently add lubricating grease, reduces the frequency of on-site shutdown oiling, and improves the production efficiency of the whole steel rolling production line.
Example 2
As can be seen from fig. 1, 2, 3, 4 and 5, the axial large telescopic drum-type tooth coupling of the present invention: the lubricating system of the right-end transmission shaft 43 further comprises an auxiliary lubricating oil path arranged on the tooth side of the external rectangular spline, the auxiliary lubricating oil path comprises a plurality of auxiliary lubricating units, and the auxiliary lubricating units are symmetrically arranged on two sides of each main lubricating unit; each auxiliary lubricating unit comprises an auxiliary transverse oil way 107 and two symmetrical grease introducing holes 106; and the auxiliary transverse oil path 107 is arranged on the tooth side of the external rectangular spline along the axial direction, the upper part of the grease introducing hole 106 is communicated with the auxiliary transverse oil path 107 and the grease leading-out hole 105, and the lower part of the grease leading-in hole is communicated with the tooth bottom of the external rectangular spline.
Wherein, according to the height of outer rectangle spline flank, each flank can set up one to two and assist the lubrication unit.
When the axial large expansion drum type gear coupling of the invention works, the lubricating grease from the grease outlet hole 105 of the main lubricating unit flows to the auxiliary transverse oil path 107 through the upper part of the grease inlet hole 106 and flows to the bottom of the gear through the lower part of the grease inlet hole 106. Lubricating grease at the auxiliary transverse oil path 107 lubricates the tooth sides of the internal and external rectangular splines; the grease that comes out from the lower portion of the grease introduction hole 106 lubricates the tooth bottoms of the external rectangular splines and the tooth crests of the internal rectangular splines.
The auxiliary lubrication unit realizes the lubrication of the tooth sides, the tooth bottoms of the external rectangular splines and the tooth tops of the internal rectangular splines; the auxiliary transverse oil passage 107 has a certain oil storage function, so that lubrication can be performed better.
Example 3
As can be seen from fig. 1 and 2, the axial large expansion drum type gear coupling of the present invention: the lubricating system of the right end transmission shaft 43 further comprises an L-shaped grease returning hole 46 arranged at the right section of the right end transmission shaft, and a transverse hole of the L-shaped grease returning hole 46 is communicated with the grease storage 44, and a vertical hole is opened on the excircle of the non-spline position at the right section of the right end transmission shaft 43 and is positioned on the inner side of the protective cover 5.
Wherein, the number of the L-shaped grease returning holes 46 is determined according to the size of the rectangular spline pair.
The pressure generated during the contraction process of the telescopic shaft 4 moving to the right enables the lubricating grease at the spline pair to flow to the transverse port through the vertical hole of the L-shaped grease returning hole 46 and then return to the grease storage 44, and the self-circulation of the lubricating system is realized. The oil storage type lubricating mode of the invention realizes the reutilization of the lubricating grease, reduces the production cost and does not need frequent shutdown and lubricating grease addition.
Example 4
As can be seen from fig. 1 and 2, the axial large expansion drum type gear coupling of the present invention: the sectional type lubricating system also comprises a lubricating system of the left end transmission shaft 41, which comprises a grease inlet hole 48, a cavity 47 and a grease outlet hole 49; one end of a transverse hole of the grease inlet hole 48 is communicated with a radial through hole of the grease inlet hole, the other end of the transverse hole is communicated with the cavity 47, one end of a radial grease outlet hole 49 is communicated with the cavity 47, the other end of the radial grease outlet hole is opened on the excircle of the left-end transmission shaft 41 and is positioned in the roller end assembly.
The roller end assembly of the axial large telescopic drum-shaped gear coupling comprises a roller end shaft sleeve 1, an inner gear sleeve 2, an outer gear shaft sleeve 3 and a connecting disc 10, wherein the roller end shaft sleeve 1 and the inner gear sleeve 2 are connected through a spline pair, the inner gear sleeve 2 and the outer gear shaft sleeve 3 are connected through a gear pair, the connecting disc 10 is fixedly arranged in an inner hole of the roller end shaft sleeve 1, and the outer gear shaft sleeve 3 is sleeved on an outer circle of the left end of a telescopic shaft 4 and is fixedly connected with the outer circle. The grease enters from the radial through hole of the grease inlet hole 48, flows through the transverse hole of the grease inlet hole 48, the cavity 47 and the grease outlet hole 49 to reach the interior of the roller end assembly, and lubricates a gear pair and the like of the roller end assembly.
Example 5
As can be seen from fig. 1 and 2, the axial large telescopic drum-type gear coupling of the present invention: the lubricating system of the right end transmission shaft 43 further comprises a lubricating system arranged at the left section of the lubricating system, the lubricating system comprises a spring assembly grease inlet hole 40, one end of the spring assembly grease inlet hole 40 is opened on the excircle in the middle of the right end telescopic shaft 43, and the other end of the spring assembly grease inlet hole is communicated with the inner hole of the right end telescopic shaft 43.
Grease lubricates the spring assembly 11 through the spring assembly grease feed holes 40.
Example 6
As can be seen from fig. 1, the axial large expansion drum type gear coupling of the present invention: the telescopic transmission shaft assembly also comprises a baffle ring 8 and a limiting ring 9; the limit ring 9 is fixed at the right end of the telescopic shaft 4, and the baffle ring 8 is fixed at the left end of the transmission shaft 7.
When the axial large-telescopic-drum-shaped gear coupling is axially retracted, the telescopic shaft 4 extends rightwards into the transition shaft sleeve 6, and the baffle ring 8 is used for limiting the maximum retraction displacement; when the telescopic shaft extends axially, the telescopic shaft 4 extends leftwards from the transition shaft sleeve 6, and the limiting ring 9 is used for limiting the maximum extending position.
When the telescopic parts of the axial large-telescopic drum-shaped gear coupling are assembled: firstly, the assembly of the telescopic shaft 4 is installed by using a pin, and the tooth surface of a rectangular spline in the transition shaft sleeve 6 is coated with lubricating grease; inserting the external rectangular spline groove of the telescopic shaft 4 into the internal rectangular spline tooth crest to complete the installation of the telescopic shaft 4; and fixedly mounting the transition shaft sleeve 6 on the right end transmission shaft 7 by using pins, and finally fixedly connecting the protective cover 5 and the telescopic shaft 4 by using the pins to complete the mounting of the protective cover 5.
The axial large-expansion drum-shaped tooth coupling has the advantages that: 1. when the crowned tooth coupling works, the centrifugal force generated by rotation presses lubricating grease in an oil storage into the whole rectangular spline pair for effective lubrication, so that abnormal abrasion of a transmission part is avoided, and the defects of long axial distance, large contact area, small contact gap, difficult oil entering and small effective lubrication area of the common tooth spline pair are overcome; 2. when the drum-shaped gear coupling axially contracts, lubricating grease returns to the oil storage warehouse through the grease return hole for oil storage, so that the lubricating grease is recycled, the lubricating grease is not required to be frequently added, the number of times of on-site shutdown oiling is reduced, the production cost is reduced, and the production efficiency of the whole steel rolling production line is improved; 3. the axial expansion of the coupler replaces the sliding friction of a traditional gear pair or a tooth-type spline pair by large-diameter centering rectangular spline pair transmission, so that the axial large expansion function of the coupler is realized; the contact area in the axial sliding process of the large-diameter centering rectangular spline pair is large, the torque is transmitted stably and reliably, and the large torque transmission is realized.
In a word, the invention can obviously improve the lubricating quality of the crowned tooth coupling without additionally adding a complex oil inlet component and frequently adding lubricating grease, and realizes large axial telescopic displacement.
Claims (10)
1. An axial large-telescopic drum-shaped tooth coupler with good lubricating property comprises a roller end component at the left end, a driving end component at the right end and a telescopic transmission shaft component in the middle, wherein two ends of the telescopic transmission shaft component are respectively connected with the roller end component and the driving end component; the method is characterized in that: the telescopic transmission shaft assembly comprises a left telescopic shaft (4), a middle transition shaft sleeve (6), a right transmission shaft (7), a protective cover (5) and a spring assembly (11), wherein the telescopic shaft (4) comprises a left end transmission shaft (41), an intermediate shaft (42), a right end transmission shaft (43) and a sectional type lubricating system, and the left end and the right end of the intermediate shaft (42) are respectively connected with the left end transmission shaft (41) and the right end transmission shaft (43) through flange surfaces; the left end of a left end transmission shaft (41) is connected with the roller end assembly, the right end excircle of a right end transmission shaft (43) is connected with the inner hole of a transition shaft sleeve (6) through a rectangular spline pair, the transition shaft sleeve (6) is fixedly connected with a transmission shaft (7), the transmission shaft (7) is connected with a driving end assembly, a protective cover (5) is sleeved outside the right end transmission shaft (43) and the transition shaft sleeve (6), and a spring assembly (11) is arranged in the inner hole of the right end transmission shaft (43); the sectional type lubricating system comprises a lubricating system of a right-end transmission shaft (43), and comprises an L-shaped grease inlet hole (45) arranged in the middle of the lubricating system, an annular grease storage tank (44) arranged on the right section of the lubricating system, and a main lubricating oil way arranged at the tooth top of the external rectangular spline; the main lubricating oil way comprises a plurality of main lubricating units, and each main lubricating unit comprises a main transverse oil way (103), a grease outlet hole (104) and two symmetrical grease outlet holes (105); the main transverse oil path (103) is arranged along the axial direction at the outer rectangular spline top, the grease outlet hole (104) is arranged in the middle of the main transverse oil path (103), the other end of the main transverse oil path is communicated with the grease storage tank (44), and the grease outlet hole (105) is used for communicating the main transverse oil path (103) with the two sides of the gear; the transverse hole of the L-shaped grease inlet hole (45) is communicated with the grease storage tank (44), and the vertical hole is opened on the excircle of the right-end transmission shaft (43) and is positioned on the outer side of the protective cover (5).
2. The axial large expansion drum type gear coupling according to claim 1, wherein: the number of the L-shaped grease inlet holes (45) is preferably 1-4.
3. The axial large expansion drum type gear coupling as claimed in claim 1, wherein: the main lubricating units are arranged at the top of each outer rectangular spline tooth or are uniformly distributed at the top of each outer rectangular spline tooth.
4. The axial large expansion drum type gear coupling as claimed in claim 1, wherein: the lubricating system of the right-end transmission shaft (43) further comprises an auxiliary lubricating oil path arranged on the tooth side of the outer rectangular spline, the auxiliary lubricating oil path comprises a plurality of auxiliary lubricating units, and the auxiliary lubricating units are symmetrically arranged on two sides of each main lubricating unit; each auxiliary lubricating unit comprises an auxiliary transverse oil way (107) and two symmetrical grease introducing holes (106); the auxiliary transverse oil path (107) is axially arranged on the tooth side of the external rectangular spline, the upper part of the grease introducing hole (106) is communicated with the auxiliary transverse oil path (107) and the grease leading-out hole (105), and the lower part of the grease introducing hole is communicated with the tooth bottom of the external rectangular spline.
5. The axial large expansion drum type gear coupling as claimed in claim 4, wherein: one to two auxiliary lubrication units are arranged on each tooth flank according to the height of the tooth flanks of the external rectangular spline.
6. The axial large expansion drum type gear coupling according to claim 4, wherein: the lubricating system of the right end transmission shaft (43) further comprises an L-shaped grease returning hole (46) arranged at the right section of the lubricating system, a transverse hole of the L-shaped grease returning hole (46) is communicated with a grease storage tank (44), and a vertical hole is opened on the excircle of the non-spline position of the right section of the right end transmission shaft (43) and is positioned on the inner side of the protective cover (5).
7. The axial large expansion drum type gear coupling as claimed in claim 6, wherein: the number of the L-shaped grease return holes (46) is determined according to the size of the rectangular spline pair.
8. The axial large expansion drum type gear coupling according to claim 6, wherein: the sectional type lubricating system also comprises a lubricating system of a left end transmission shaft (41), which comprises a grease inlet hole (48), a cavity (47) and a grease outlet hole (49); one end of a transverse hole of the grease inlet hole (48) is communicated with the radial through hole and the other end of the transverse hole is communicated with the cavity (47), one end of a radial grease outlet hole (49) is communicated with the cavity (47), and the other end of the transverse hole is opened on the excircle of the left-end transmission shaft (41) and is positioned in the roller end assembly.
9. The axial large expansion drum type gear coupling according to claim 8, wherein: the lubricating system of the right end transmission shaft (43) further comprises a lubricating system arranged at the left section of the lubricating system, the lubricating system comprises a spring assembly grease inlet hole (40), one end of the spring assembly grease inlet hole (40) is opened on the excircle in the middle of the right end transmission shaft (43), and the other end of the spring assembly grease inlet hole is communicated with the inner hole of the right end transmission shaft (43).
10. The axial large expansion drum type gear coupling as claimed in claim 1, wherein: the telescopic transmission shaft assembly also comprises a baffle ring (8) and a limiting ring (9); the limiting ring (9) is fixed at the right end of the telescopic shaft (4), and the baffle ring (8) is fixed at the left end of the transmission shaft (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111094739.XA CN113864321B (en) | 2021-09-17 | 2021-09-17 | Axial large-expansion drum-shaped gear coupling with good lubricating performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111094739.XA CN113864321B (en) | 2021-09-17 | 2021-09-17 | Axial large-expansion drum-shaped gear coupling with good lubricating performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113864321A CN113864321A (en) | 2021-12-31 |
| CN113864321B true CN113864321B (en) | 2022-07-15 |
Family
ID=78996562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111094739.XA Active CN113864321B (en) | 2021-09-17 | 2021-09-17 | Axial large-expansion drum-shaped gear coupling with good lubricating performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113864321B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4819755A (en) * | 1988-03-14 | 1989-04-11 | Deere & Company | Telescoping drive shaft having lubricating passage |
| JP2956334B2 (en) * | 1991-12-04 | 1999-10-04 | トヨタ自動車株式会社 | Spline structure |
| JP2006207639A (en) * | 2005-01-26 | 2006-08-10 | Nsk Ltd | Manufacturing method of female spline shaft with oil reservoir and female spline shaft manufactured thereby |
| CN205918783U (en) * | 2016-08-28 | 2017-02-01 | 泰尔重工股份有限公司 | Novel vice lubricating structure of rectangular spline |
-
2021
- 2021-09-17 CN CN202111094739.XA patent/CN113864321B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113864321A (en) | 2021-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209354548U (en) | A kind of crown gear coupling and transmission mechanism | |
| CN104989808B (en) | Duplex helical gear transmission device in the middle of a kind of engine | |
| CN116498718B (en) | Lightweight high-speed gear box | |
| CN211343328U (en) | Internal gear pump | |
| CN202867607U (en) | Ball spline type ball cage constant speed universal coupling | |
| CN113864321B (en) | Axial large-expansion drum-shaped gear coupling with good lubricating performance | |
| CN103089928A (en) | Bearing grease lubrication megawatt-level ten-shunting wind power acceleration box | |
| CN105626828A (en) | Synchronous belt pulley device | |
| CN101340123B (en) | Bidirectional geared motor | |
| CN110873129A (en) | Telescopic crowned tooth coupling with oil-gas lubrication function | |
| CN105333067A (en) | Speed reducer provided with oil collecting, lubricating and clearance eliminating structure | |
| CN112524167B (en) | Drum-shaped gear coupling with axial large-expansion function | |
| CN112879527B (en) | Drum gear with oil supply and lubrication functions | |
| CN101852252A (en) | Jacket-welded short CV joint coupling | |
| CN201159249Y (en) | Spherical tooth type universal coupling | |
| CN104196894A (en) | Primary transmission support of engineering mechanical driving bridge | |
| RU2680993C1 (en) | Gear reducer and machine for production of granules, including such gear reducer | |
| CN102996774B (en) | Bearing-grease-lubridynamic-balance dynamic-balance cycloid tricyclic reduction gearbox | |
| CN201090621Y (en) | Spherical gear type cardan joint | |
| CN202790174U (en) | Coaxial double-speed double-direction ball-basket constant-speed universal coupler | |
| CN219082110U (en) | Novel dual shock attenuation formula shaft coupling | |
| CN219549496U (en) | Spiral bevel gear of directional reduction gearbox | |
| CN211693424U (en) | Thrust washer lubricating structure of middle axle driving cylindrical gear | |
| CN200978895Y (en) | Cross slot type ball universal coupling | |
| CN212455415U (en) | Combined type gear shifting gear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Kind of Axial Large Telescopic Drum Gear Coupling with Good Lubrication Performance Effective date of registration: 20230525 Granted publication date: 20220715 Pledgee: Agricultural Bank of China Limited Ma'anshan Huashan District Branch Pledgor: TAIER HEAVY INDUSTRY Co.,Ltd. Registration number: Y2023980041708 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |