CN204344729U - A kind of universal joint - Google Patents
A kind of universal joint Download PDFInfo
- Publication number
- CN204344729U CN204344729U CN201420725027.2U CN201420725027U CN204344729U CN 204344729 U CN204344729 U CN 204344729U CN 201420725027 U CN201420725027 U CN 201420725027U CN 204344729 U CN204344729 U CN 204344729U
- Authority
- CN
- China
- Prior art keywords
- spheroid
- cavity
- joint member
- concave surface
- spherical concave
- 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.)
- Expired - Fee Related
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Abstract
A kind of universal joint, comprises the first joint member, the second joint member, neck bush, external bushing, locking nut and at least three steel balls; First joint member is the circular rod member that one end is provided with spheroid, second joint member is cylindrical body, limited ring is provided with in described cylindrical body, the inner chamber of this cylindrical body is separated into the first cavity and the second cavity by limited ring, neck bush is circle structure, its one end is provided with the spherical concave surface mated with spheroid, and external bushing is made up of the component of two semicircular ring structures, and their one end are provided with the spherical concave surface mated with spheroid; Neck bush is arranged in the second cavity of the second joint member, the spheroid of the first joint member and the spherical concave surface of neck bush are affixed, each steel ball is arranged in the hemispherical dimples on spheroid and the groove on the second cavity inner wall respectively, the spheroid of one end and the first joint member that external bushing is provided with spherical concave surface is affixed, and locking nut is threaded with the second cavity and contacts with external bushing.
Description
Technical field
The utility model relates to the connected element in mechanical structure, the connection joint component that the axial motion transmission particularly in mechanical transmission between diaxon and torque force transmit.
Background technique
The cross universal joint of the many employings of traditional universal joint, structure is as Fig. 8, shown in Fig. 9, first joint member is connected by intermediate member and four pins with the second joint member, described intermediate member is four prisms cylinder, four pins become cross layout, wherein, one end of two pins is welded with the first joint member respectively, their the other end inserts in a hole of intermediate member setting respectively, one end of another two pins is welded with the second joint member respectively, their the other end inserts in a hole of intermediate member setting respectively, the hole that four pins and intermediate member are arranged adopts Spielpassung, form kinematic pair, axial force and torque force is transmitted by this structure.This kind of universal joint has the following disadvantages: (1) first joint member, second is connected to component and intermediate member joint intensity difference, easily destroys.(2), when intermediate connector wearing and tearing and damage, change inconvenient.(3) two ends connect driving shaft and driven shaft each other several angle transmitting torque power time have dead angle phenomenon; When driving shaft angular velocity is constant, driven shaft angular velocity is not constant, changes within the specific limits, thus can produce additional dynamic load, produces vibrations.
Model utility content
The purpose of this utility model is to overcome prior art deficiency, provides a kind of novel universal joint, to increase the service life, avoids dead angle phenomenon to occur, and change conveniently in Movement transmit.
Universal joint described in the utility model, comprises the first joint member, the second joint member, neck bush, external bushing, locking nut and at least three steel balls; First joint member is the circular rod member that one end is provided with spheroid, described spheroid surface is provided with the hemispherical dimples matched with steel ball quantity and size, each pit that to be centrally located at the centre of sphere of spheroid be the center of circle is circumferentially same, the angle between adjacent pit is identical; Second joint member is cylindrical body, limited ring is provided with in described cylindrical body, the inner chamber of this cylindrical body is separated into the first cavity and the second cavity by limited ring, the chamber wall of the first cavity is provided with the hanging hole that two are symmetrical in cylindrical body center line, the inwall of the second cavity is provided with the groove matched with steel ball quantity and size, the position of each groove is corresponding with the pit on described spheroid surface, and the port part section of the second cavity is provided with the internal thread matched with locking nut; Neck bush is circle structure, and its one end is provided with the spherical concave surface mated with spheroid; External bushing is made up of the component of two semicircular ring structures, and component one end of two semicircular ring structures is provided with the spherical concave surface mated with spheroid; The assembling mode of each component: neck bush is arranged in the second cavity of the second joint member, the end face of its one end and described limited ring of not being provided with spherical concave surface is affixed, the spheroid of the first joint member and the spherical concave surface of neck bush are affixed, each steel ball is arranged in the hemispherical dimples on spheroid and the groove on the second cavity inner wall respectively, the spheroid of one end and the first joint member that external bushing is provided with spherical concave surface is affixed, and locking nut is threaded with the second cavity and contacts with external bushing.
In order to adapt to the connection of some movement parts, the first joint member in universal joint described in the utility model can arrange center hole, this center hole is run through the circular rod member of composition first joint member and the through hole of spheroid.
Universal joint described in the utility model, steel ball is 3 ~ 6.
Universal joint described in the utility model, the hanging hole preferred L shape hanging hole that the first cavity body wall of the second joint member is arranged, to realize being connected with the stable of moving link.
The utility model has following beneficial effect:
1, because the connection of the first joint member, the second joint member adopts ball pivot connect and be configured with steel ball, thus joint intensity is good, and when using, frictional force reduces, and wearing and tearing reduce, and are conducive to increasing the service life.
2, the Placement of two joint member in universal joint described in the utility model, can avoid driving shaft and driven shaft each other several angle transmitting torque power time produce dead angle phenomenon.
3, the Placement of two joint member in universal joint described in the utility model, can realize assembling fast, and it is convenient to change, and increases work efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of universal joint described in the utility model;
Fig. 2 is the A-A sectional drawing of Fig. 1;
Fig. 3 is the structural representation of the second joint member;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the P-P sectional view of Fig. 3;
Fig. 6 is the structural representation of the second joint member;
Fig. 7 is the connection diagram of universal joint described in the utility model and honing head, honing lever
Fig. 8 is the schematic diagram of cross universal joint of the prior art
Fig. 9 is the M-M sectional drawing of Fig. 8.
In figure, 1 first joint member, 1-1 spheroid, 1-2 hemispherical dimples, 1-3 center hole, 2 locking nuts, 3 second joint member, 3-1 limited ring, 3-2 first cavity, 3-2-1 hanging hole, 3-3 second cavity, 3-3-1 groove, 3-3-2 internal thread, 4 steel balls, 5 neck bushs, 6 external bushings, 7 workpieces to be machined, 8 honing heads, 9 push rods, 10 honing levers, pin in 11 cross universal joints, 12 intermediate members, the first joint member in 13 cross universal joints, the second joint member in 14 cross universal joints.
Embodiment
By reference to the accompanying drawings the structure of universal joint described in the utility model and use to be described further below by embodiment.
Embodiment 1
Universal joint described in the present embodiment is used for the connection of honing head and honing lever, and its structure as shown in Figure 1 and Figure 2, is made up of the first joint member 1, second joint member 3, neck bush 5, external bushing 6, locking nut 2 and four steel balls 4.The sphere diameter of described steel ball 4 is Φ 8mm, first joint member 1 is provided with the Step Circular rod member of spheroid for one end, the sphere diameter of described spheroid 1-1 is Φ 30mm, spheroid surface is provided with the hemispherical dimples 1-2 matched with steel ball quantity and size, each pit that to be centrally located at the centre of sphere of spheroid be the center of circle is circumferentially same, angle between adjacent pit is identical, be 90 °, first joint member 1 is provided with center hole 1-3, and this center hole is run through the circular rod member of composition first joint member and the through hole of spheroid; Second joint member 3 is cylindrical body, limited ring 3-1 is provided with in described cylindrical body, the inner chamber of this cylindrical body is separated into the first cavity 3-2 and the second cavity 3-3 by limited ring, the chamber wall of the first cavity is provided with the L shape hanging hole 3-2-1 that two are symmetrical in cylindrical body center line, the inwall of the second cavity is provided with the groove 3-3-1 matched with steel ball quantity and size, the position of each groove is corresponding with the pit on described spheroid surface, and the port part section of the second cavity is provided with the internal thread 3-3-2 matched with locking nut 2; Neck bush 5 is circle structure, and its one end is provided with the spherical concave surface mated with spheroid 1-1; External bushing 6 is made up of the component of two semicircular ring structures, and component one end of two semicircular ring structures is provided with the spherical concave surface mated with spheroid 1-1; The assembling mode of above-mentioned component: neck bush 5 is arranged in the second cavity 3-3 of the second joint member 3, the end face of its one end and described limited ring 3-1 of not being provided with spherical concave surface is affixed, the spheroid 1-1 of the first joint member 1 and the spherical concave surface of neck bush 5 are affixed, each steel ball 4 is arranged in the hemispherical dimples on spheroid and the groove on the second cavity inner wall respectively, the spheroid 1-1 of one end and the first joint member that external bushing 6 is provided with spherical concave surface is affixed, and locking nut 2 is threaded with the second cavity and contacts with external bushing.
Embodiment 2
Universal joint described in embodiment 1 is used for the connection of honing head 8 and honing lever 10 by the present embodiment, inner bore honing processing is carried out to workpiece to be machined 7, Placement as shown in Figure 7, honing lever 10 welds with the first joint member 1 in universal joint, honing head 8 is connected by hanging hole 3-2-1 with the second joint member 3, and the push rod 9 on honing lever 10 contacts with honing head 8 through the center hole of the first joint member 1.Use the utility model institute universal joint, honing head 8 (driven shaft) angular velocity is consistent with honing lever 10 (driving shaft) angular velocity, and formed between them and do not fall lower powered flexibly connecting, thus do not produce vibrations during honing, endoporus quality of processing is stablized.
Claims (5)
1. a universal joint, comprise the first joint member (1), the second joint member (3), characterized by further comprising neck bush (5), external bushing (6), locking nut (2) and at least three steel balls (4);
First joint member (1) is provided with the circular rod member of spheroid for one end, described spheroid (1-1) surface is provided with the hemispherical dimples (1-2) matched with steel ball quantity and size, each pit that to be centrally located at the centre of sphere of spheroid be the center of circle is circumferentially same, the angle between adjacent pit is identical;
Second joint member (3) is cylindrical body, limited ring (3-1) is provided with in described cylindrical body, the inner chamber of this cylindrical body is separated into the first cavity (3-2) and the second cavity (3-3) by limited ring, the chamber wall of the first cavity is provided with the hanging hole (3-2-1) that two are symmetrical in cylindrical body center line, the inwall of the second cavity is provided with the groove (3-3-1) matched with steel ball quantity and size, the position of each groove is corresponding with the pit on described spheroid surface, the port part section of the second cavity is provided with the internal thread (3-3-2) matched with locking nut (2),
Neck bush (5) is circle structure, and its one end is provided with the spherical concave surface mated with spheroid (1-1); External bushing (6) is made up of the component of two semicircular ring structures, and component one end of two semicircular ring structures is provided with the spherical concave surface mated with spheroid (1-1);
Neck bush (5) is arranged in second cavity (3-3) of the second joint member (3), the end face of its one end and described limited ring (3-1) of not being provided with spherical concave surface is affixed, the spheroid (1-1) of the first joint member (1) and the spherical concave surface of neck bush (5) are affixed, each steel ball (4) is arranged in the hemispherical dimples on spheroid and the groove on the second cavity inner wall respectively, the spheroid (1-1) of one end and the first joint member that external bushing (6) is provided with spherical concave surface is affixed, locking nut (2) is threaded with the second cavity and contacts with external bushing.
2. universal joint according to claim 1, it is characterized in that described first joint member (1) is provided with center hole (1-3), this center hole is run through the circular rod member of composition first joint member and the through hole of spheroid.
3. universal joint according to claim 1 or 2, is characterized in that described steel ball (4) is 3 ~ 6.
4. universal joint according to claim 1 or 2, is characterized in that the hanging hole (3-2-1) that the first cavity body wall is arranged is L shape hanging hole.
5. universal joint according to claim 3, is characterized in that the hanging hole (3-2-1) that the first cavity body wall is arranged is L shape hanging hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420725027.2U CN204344729U (en) | 2014-11-26 | 2014-11-26 | A kind of universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420725027.2U CN204344729U (en) | 2014-11-26 | 2014-11-26 | A kind of universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344729U true CN204344729U (en) | 2015-05-20 |
Family
ID=53228000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420725027.2U Expired - Fee Related CN204344729U (en) | 2014-11-26 | 2014-11-26 | A kind of universal joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204344729U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405782A (en) * | 2014-11-26 | 2015-03-11 | 四川法斯特机械制造有限责任公司 | Universal connector |
| CN110630631A (en) * | 2019-10-15 | 2019-12-31 | 上海电气集团股份有限公司 | Ball joint and position adjusting device comprising same |
| TWI724957B (en) * | 2020-07-31 | 2021-04-11 | 張季豐 | Universal joint for tools |
-
2014
- 2014-11-26 CN CN201420725027.2U patent/CN204344729U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405782A (en) * | 2014-11-26 | 2015-03-11 | 四川法斯特机械制造有限责任公司 | Universal connector |
| CN110630631A (en) * | 2019-10-15 | 2019-12-31 | 上海电气集团股份有限公司 | Ball joint and position adjusting device comprising same |
| TWI724957B (en) * | 2020-07-31 | 2021-04-11 | 張季豐 | Universal joint for tools |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20191126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |