CN111536165A - Ball cage type synchronous universal coupling - Google Patents
Ball cage type synchronous universal coupling Download PDFInfo
- Publication number
- CN111536165A CN111536165A CN201910515473.8A CN201910515473A CN111536165A CN 111536165 A CN111536165 A CN 111536165A CN 201910515473 A CN201910515473 A CN 201910515473A CN 111536165 A CN111536165 A CN 111536165A
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- China
- Prior art keywords
- inner sleeve
- sleeve shaft
- sleeve
- spline
- 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.)
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Classifications
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- 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
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
- F16D3/226—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines in each coupling part lying on a cylinder co-axial with the respective coupling part
- F16D3/227—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines in each coupling part lying on a cylinder co-axial with the respective coupling part the joints being telescopic
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- 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
- F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
- F16D3/843—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
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- 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
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
- F16D2003/2232—Elements arranged in the hollow space between the end of the inner shaft and the outer joint member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
Abstract
A ball cage type synchronous universal coupling comprises a sleeve, wherein the sleeve comprises a steel pipe, spline sleeves which are bilaterally symmetrical are welded at two end parts of the steel pipe, and a plurality of axially extending spline grooves are formed in the inner peripheral surfaces of the spline sleeves; one end of the first inner sleeve shaft and one end of the second inner sleeve shaft are spherical outside surfaces, the peripheral surface of the other end surface is provided with a plurality of spline teeth which are matched with the spline grooves and extend axially, the spline teeth correspond to the spline grooves on the inner peripheral surface of the spline sleeve one by one, the first inner sleeve shaft and the second inner sleeve shaft are sleeved in the spline sleeves at two end parts of the sleeve in a bilateral symmetry mode, and the outer peripheries of the end parts of the spherical outside surfaces of the first inner sleeve shaft and the second inner sleeve shaft are respectively; an outer sleeve is arranged outside each of the two retainers; the outer ends of the two outer sleeves are respectively provided with a flange; the two steel ball groups are respectively arranged in circular channels formed by the inner sleeve shaft I, the inner sleeve shaft II and the corresponding outer sleeve; the two sealing devices are respectively arranged on the inner sides of the corresponding outer sleeves; the two-end body is uniformly stressed and stably transferred, and the service life is prolonged.
Description
Technical Field
The invention relates to the technical field of couplings, in particular to a ball cage type synchronous universal coupling.
Background
The rzeppa synchronous universal coupling (hereinafter referred to as a rzeppa coupling) is widely applied to the industries of machinery, automobiles, petroleum, metallurgy and the like. The core body of the ball cage coupler consists of four parts, namely an outer sleeve, an inner sleeve, a retainer and a steel ball. The outer sleeve and the inner sleeve are respectively connected with the driving shaft and the driven shaft, the steel ball is positioned in the channel of the outer sleeve and the inner sleeve by the retainer, the center of the steel ball is positioned in a plane passing through the center of the coupling and is always positioned on a bisection plane of an included angle between the axes of the driving shaft and the driven shaft, and the rotating speed synchronization between the driving shaft and the driven shaft of the ball cage coupling is kept. Generally, when the expansion amount of the ball cage coupler is less than or equal to 35mm, the sliding ball cage coupler realizes the expansion requirement through the relative sliding of the steel balls in the channel, and the fixed ball cage coupler realizes the expansion through the axial tension and compression of the inner sleeve and the spline shaft; when the expansion amount is larger than 35mm and a large expansion amount is needed, the expansion requirement is generally realized by a pair of spline pairs arranged on a single side of the middle section of the ball cage coupler (see a part A in fig. 1). The ball cage coupler with the spline pair can meet the large telescopic requirements of corners, lifting or descending and the like, but has some disadvantages when in use: when the ball cage coupler is stretched or compressed, the parts at the two ends of the spring are of asymmetric structures, so that the sliding resistance of the steel balls in the coupler body and the axial force of the coupler body at the two ends are not uniform, the service life of the coupler body at the two ends is unbalanced, and one end fails in advance.
Disclosure of Invention
The invention aims to overcome the defects of the conventional spline pair telescopic Rzeppa synchronous universal coupling, and provides the Rzeppa synchronous universal coupling, which has the advantages that the stress in the bodies at the two ends is uniform, the transmission is stable, and the service life is prolonged.
The technical scheme of the invention is as follows: a ball cage type synchronous universal coupling comprises a sleeve, wherein the sleeve comprises a steel pipe, spline sleeves which are bilaterally symmetrical are welded at two end parts of the steel pipe, and a plurality of axially extending spline grooves are formed in the inner peripheral surfaces of the spline sleeves;
the outer circumferences of the outer spherical surfaces of the inner sleeve shaft I and the inner sleeve shaft II are respectively provided with a retainer; an outer sleeve is arranged outside each of the two retainers, and N uniformly distributed first channels extending axially are arranged on the inner cylindrical surface of each outer sleeve; the outer ends of the two outer sleeves are respectively provided with a flange; the end parts of the outer spherical surfaces of the first inner sleeve shaft and the second inner sleeve shaft are respectively provided with a tip, the outer spherical surfaces of the first inner sleeve shaft and the second inner sleeve shaft are provided with N uniformly distributed second channels extending axially, and the second channels correspond to the first channels one to one;
the two steel ball groups are respectively arranged in circular channels formed by the inner sleeve shaft I, the inner sleeve shaft II and the corresponding outer sleeve;
the two sealing devices are respectively arranged on the inner sides of the corresponding outer sleeves.
The spline grooves on the inner peripheral surface of the spline sleeve are arranged at equal intervals along the circumferential direction.
The middle parts of the inner sleeve shaft I and the inner sleeve shaft II are provided with a circular bulge; a first spring is arranged between the first inner sleeve shaft and the left end part of the sleeve, and one end of the first spring is sleeved on the first inner sleeve shaft; a second spring is arranged between the right end parts of the sleeves of the second inner sleeve shaft, and the second spring is sleeved on the second inner sleeve shaft.
One end of the first spring is abutted against the annular bulge on the first inner sleeve shaft, and the other end of the first spring is abutted against the left end part of the sleeve; one end of the second spring is abutted against the annular bulge on the second inner sleeve shaft, and the other end of the second spring is abutted against the right end part of the sleeve.
One end of the inner cylindrical surface of the outer sleeve is provided with an inner spigot, and the other end of the inner cylindrical surface of the outer sleeve is provided with a clamping groove.
A baffle plate used for blocking the tip is arranged in the inner spigot at one end of the outer sleeve, and a check ring used for axially limiting the steel ball during stretching is arranged in the clamping groove at the other end of the outer sleeve.
The two retainers are provided with N uniformly distributed windows along the circumference, and the N uniformly distributed windows on each retainer are respectively in one-to-one correspondence with the corresponding first channels and the second channels.
The two flanges and the peripheries of the corresponding outer sleeves are provided with grooves for welding, and the two flanges are welded on the corresponding outer sleeves.
The two sealing devices comprise a gland, a large clamp, sealing covers and a small clamp, the small opening ends of the two sealing covers are respectively and radially clamped on the corresponding inner sleeve shaft I and the inner sleeve shaft II through the small clamp, the large opening ends of the two sealing covers are respectively and radially clamped on the corresponding gland through the large clamp, and the gland is arranged on the outer sleeve and is riveted with the outer sleeve into a whole.
The invention has the beneficial effects that: compared with the prior art, the ball cage coupling has the advantages that when the ball cage coupling is stretched or compressed, the stress in the bodies at the two ends is uniform, the transmission is stable, the service life is prolonged, and the consistent favorable comment of customers is obtained.
Drawings
FIG. 1 is a schematic structural view of the present invention before improvement;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the sealing device of the present invention;
FIG. 4 is a schematic view of the structure of the bushing of the present invention;
in the figure: 1. the device comprises a flange, 2, a baffle, 3, a retainer, 4, an outer sleeve, 5, a steel ball group, 6-1, a first inner sleeve, a second inner sleeve, 7, a retainer ring, 8, a sealing device, 8-1, a gland, 8-2, a large hoop, 8-3, a sealing cover, 8-4, a small hoop, 9-1, a first spring, a second spring, 10 sleeves, 10-1, a spline sleeve, 10-2 steel pipes and 11 apexes; A. the welding device comprises a spline pair, J1, a spline pair I, J2, a spline pair II, H1, a welding line I, H2 and a welding line II.
Detailed Description
The invention is further described in detail below with reference to the embodiments provided in the drawings.
In FIG. 2, the device comprises a sleeve 10, a first inner sleeve shaft 6-1, a second inner sleeve shaft 6-2, two outer sleeves, two retainers, two flanges, two baffles and two sealing devices; one end of the inner sleeve shaft I6-1 and one end of the inner sleeve shaft II 6-2 are spherical outside surfaces, the outer peripheral surface of the other end surface is provided with a plurality of spline teeth which are matched with the spline grooves and extend axially, each spline tooth corresponds to the spline grooves on the inner peripheral surface of the spline sleeve 10-1 one by one, the inner sleeve shaft I6-1 is sleeved at the left end of the sleeve 10 to form a spline pair I J1, the inner sleeve shaft II 6-2 is sleeved at the right end of the sleeve 10 to form a spline pair II J2 to realize extension or compression, and the outer peripheries of the end parts of the spherical outside surfaces of the inner sleeve shaft I6-1 and the inner sleeve shaft II 6; an outer sleeve is arranged outside each of the two retainers; the outer ends of the two outer sleeves are respectively provided with a flange; the inner surface and the outer surface of the two outer sleeves 4 are cylindrical surfaces, one end of the cylindrical surface of the inner surface is provided with an inner spigot, the other end of the cylindrical surface of the inner surface is provided with a clamping groove, and the cylindrical surface is also provided with N first channels which are uniformly distributed along the axial direction; the two baffles 2 are correspondingly placed in the inner spigot of one outer sleeve 4, grooves for welding are formed in the peripheries of the two flanges 1 and the corresponding outer sleeve 4, the two flanges 1 and the corresponding outer sleeve 4 are matched and then welded into a whole along the circumference, and a first welding line H1 and a second welding line H2 are formed; n uniformly distributed second channels are axially arranged on the spherical surfaces of the first inner sleeve shaft 6-1 and the second inner sleeve shaft 6-2, the second channels correspond to the first channels one to one, and the two tips 11 are respectively arranged in inner holes at the outer spherical surface ends of the first inner sleeve shaft 6-1 and the second inner sleeve shaft 6-2; a retainer 3 is arranged between the outer spherical surface of the inner sleeve shaft I6-1 and the inner cylindrical surface of the corresponding outer sleeve 4, another retainer is arranged between the outer spherical surface of the inner sleeve shaft II 6-2 and the inner cylindrical surface of the corresponding outer sleeve, the two retainers are respectively provided with N uniformly distributed windows along the circumference, and the N uniformly distributed windows of the retainer 3 are respectively and simultaneously in one-to-one correspondence with N uniformly distributed first channels on the inner cylindrical surface of the outer sleeve 4 and N uniformly distributed second channels on the outer spherical surface of the inner sleeve shaft 6-1; the N uniformly distributed windows of the other retainer respectively correspond to the N uniformly distributed first channels on the inner cylindrical surface of the corresponding outer sleeve and the N uniformly distributed second channels on the outer spherical surface of the second 6-2 inner sleeve shaft in a one-to-one mode; n steel balls of each steel ball group are arranged in N windows of the corresponding retainer and are simultaneously positioned in N channels of the corresponding outer sleeve and the corresponding inner sleeve shaft; the retainer limits the steel ball; each retainer ring is placed in the corresponding clamping groove of the outer sleeve, and the steel ball is axially limited during stretching;
the middle parts of the inner sleeve shaft I6-1 and the inner sleeve shaft II 6-2 are provided with a circular ring-shaped bulge; a spring I9-1 is arranged between the inner sleeve shaft I6-1 and the left end part of the sleeve 10, one end of the spring I9-1 is sleeved on the inner sleeve shaft I6-1, one end of the spring I9-1 is abutted against the annular bulge on the inner sleeve shaft I6-1, and the other end of the spring I9-1 is abutted against the left end part of the sleeve 10;
a second spring 9-2 is arranged between the second inner sleeve shaft 6-2 and the right end part of the sleeve 10, the second spring 9-2 is sleeved on the second inner sleeve shaft 6-2, one end of the second spring 9-2 is abutted against the annular bulge on the second inner sleeve shaft 6-2, and the other end of the second spring is abutted against the right end part of the sleeve 10; the spring force of the first spring 9-1 and the spring force of the second spring 9-2 can effectively realize that the tip 11 is abutted against the baffle 2 and the two flanges 1 at the two ends are axially pressed.
In fig. 3, the sealing device 8 includes a gland 8-1, a large clamp 8-2, a sealing cover 8-3, a small clamp 8-4, the small opening end of the sealing cover is respectively radially clamped on the corresponding first inner sleeve 6-1 and second inner sleeve 6-2 through the small clamp 8-4, the large opening end of the sealing cover is respectively radially clamped on the corresponding gland 8-1 through the large clamp 8-2, and the gland 8-1 is arranged on the outer sleeve and riveted with the outer sleeve into a whole.
In fig. 4, the sleeve 10 and the sleeve 10 comprise a steel pipe 10-2, the bilateral spline housing 10-1 is welded at two end parts of the steel pipe 10-2, and the inner peripheral surface of the spline housing 10-1 is provided with a plurality of axially extending spline grooves which are circumferentially arranged at equal intervals.
The quick assembly structure is mainly used for the quick assembly structure of metallurgical equipment, one end flange is connected with the transfer case, the other end flange is connected with the roller, springs are symmetrically arranged at two ends, the quick assembly or disassembly of the coupling is facilitated, the bodies at the two ends are uniformly stressed and stably transmitted, and the integral service life is obviously prolonged.
Having thus shown and described the basic principles and principal features of this patent, together with the advantages thereof, it will be understood by those skilled in the art that the invention is not limited by the foregoing embodiments, which are given by way of illustration of the principles of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (9)
1. The utility model provides a synchronous universal joint of ball cage which characterized in that: the sleeve comprises a sleeve (10), wherein the sleeve (10) comprises a steel pipe (10-2), spline sleeves which are bilaterally symmetrical are welded at two end parts of the steel pipe (10-2), and a plurality of axially extending spline grooves are formed in the inner peripheral surfaces of the spline sleeves;
the outer ring gear is characterized by further comprising a first inner sleeve shaft (6-1) and a second inner sleeve shaft (6-2), one end of the first inner sleeve shaft (6-1) and one end of the second inner sleeve shaft (6-2) are outer spherical surfaces, the outer peripheral surface of the other end surface is provided with a plurality of axially extending spline teeth matched with the spline grooves, the spline teeth are in one-to-one correspondence with the spline grooves on the inner peripheral surface of the spline sleeve, the first inner sleeve shaft (6-1) and the second inner sleeve shaft (6-2) are bilaterally symmetrical and sleeved in the spline sleeves at two end parts of the sleeve (10), and the outer peripheries of the end parts of the outer spherical surfaces of the first inner sleeve shaft (6-1; an outer sleeve is arranged outside each of the two retainers, and N uniformly distributed first channels extending axially are arranged on the inner cylindrical surface of each outer sleeve; the outer ends of the two outer sleeves are respectively provided with a flange; the end parts of the outer spherical surfaces of the first inner sleeve shaft (6-1) and the second inner sleeve shaft (6-2) are respectively provided with a tip (11), the outer spherical surfaces of the first inner sleeve shaft (6-1) and the second inner sleeve shaft (6-2) are provided with N uniformly distributed second channels extending axially, and the second channels correspond to the first channels one to one;
the two steel ball groups are respectively arranged in a circular channel formed by the inner sleeve shaft I (6-1), the inner sleeve shaft II (6-2) and the corresponding outer sleeve;
the two sealing devices are respectively arranged on the inner sides of the corresponding outer sleeves.
2. A rzeppa synchronous universal coupling according to claim 1, characterized in that: the spline grooves on the inner peripheral surface of the spline sleeve are arranged at equal intervals along the circumferential direction.
3. A rzeppa synchronous universal coupling according to claim 1, characterized in that: a circular bulge is arranged in the middle of the inner sleeve shaft I (6-1) and the inner sleeve shaft II (6-2); a first spring (9-1) is arranged between the first inner sleeve shaft (6-1) and the left end part of the sleeve (10), and one end of the first spring (9-1) is sleeved on the first inner sleeve shaft (6-1); a second spring (9-2) is arranged between the right end parts of the second sleeve (6-2) of the inner sleeve shaft and the sleeve (10), and the second spring (9-2) is sleeved on the second inner sleeve shaft (6-2).
4. A rzeppa synchronous universal coupling according to claim 3, characterized in that: one end of the spring I (9-1) abuts against the annular bulge on the inner sleeve I (6-1), and the other end of the spring I abuts against the left end of the sleeve (10); one end of the second spring (9-2) abuts against the annular bulge on the second inner sleeve shaft (6-2), and the other end of the second spring abuts against the right end of the sleeve (10).
5. A rzeppa synchronous universal coupling according to claim 1, characterized in that: one end of the inner cylindrical surface of the outer sleeve is provided with an inner spigot, and the other end of the inner cylindrical surface of the outer sleeve is provided with a clamping groove.
6. A rzeppa synchronous universal coupling according to claim 5, characterized in that: a baffle plate used for blocking the tip is arranged in the inner spigot at one end of the outer sleeve, and a check ring used for axially limiting the steel ball during stretching is arranged in the clamping groove at the other end of the outer sleeve.
7. A rzeppa synchronous universal coupling according to claim 1, characterized in that: the two retainers are provided with N uniformly distributed windows along the circumference, and the N uniformly distributed windows on each retainer are respectively in one-to-one correspondence with the corresponding first channels and the second channels.
8. A rzeppa synchronous universal coupling according to claim 1, characterized in that: the two flanges and the peripheries of the corresponding outer sleeves are provided with grooves for welding, and the two flanges are welded on the corresponding outer sleeves.
9. A rzeppa synchronous universal coupling according to claim 1, characterized in that: the two sealing devices respectively comprise a gland (8-1), a large clamp (8-2), sealing covers (8-3) and a small clamp (8-4), the small end of each sealing cover (8-3) is radially clamped on the corresponding inner sleeve shaft I (6-1) and the corresponding inner sleeve shaft II (6-2) through the small clamp (8-4), the large end of each sealing cover (8-3) is radially clamped on the corresponding gland (8-1) through the large clamp (8-2), and the gland (8-1) is arranged on the outer sleeve and is riveted with the outer sleeve into a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910515473.8A CN111536165A (en) | 2019-06-14 | 2019-06-14 | Ball cage type synchronous universal coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910515473.8A CN111536165A (en) | 2019-06-14 | 2019-06-14 | Ball cage type synchronous universal coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111536165A true CN111536165A (en) | 2020-08-14 |
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ID=71972891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910515473.8A Pending CN111536165A (en) | 2019-06-14 | 2019-06-14 | Ball cage type synchronous universal coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111536165A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113458468A (en) * | 2021-07-31 | 2021-10-01 | 哈尔滨轮速科技有限公司 | Motor torque sensor and processing method thereof |
-
2019
- 2019-06-14 CN CN201910515473.8A patent/CN111536165A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113458468A (en) * | 2021-07-31 | 2021-10-01 | 哈尔滨轮速科技有限公司 | Motor torque sensor and processing method thereof |
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