CN111894996A - Spherical single-slider type universal coupling - Google Patents
Spherical single-slider type universal coupling Download PDFInfo
- Publication number
- CN111894996A CN111894996A CN202010724004.XA CN202010724004A CN111894996A CN 111894996 A CN111894996 A CN 111894996A CN 202010724004 A CN202010724004 A CN 202010724004A CN 111894996 A CN111894996 A CN 111894996A
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- China
- Prior art keywords
- shaft
- spherical
- inner ball
- ball shaft
- phi
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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
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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
- F16D3/202—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 one coupling part having radially projecting pins, e.g. tripod joints
- F16D3/205—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 one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
- F16D3/2052—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 one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part having two pins
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention relates to the field of mechanical transmission, in particular to a spherical single-slider universal coupling. Comprises an inner ball shaft, a slide block and an outer ball shaft; the outer circle section of the sliding block is placed in a hole with the diameter phi B and the depth H on the spherical surface of the outer spherical shaft, the inner spherical surface of the sliding block is attached to the spherical surface of the outer spherical shaft, and the sliding block rotates freely on the spherical surface of the outer spherical shaft by 360 degrees around the center of the outer circle; the hole is made on a plane which passes through the center of the spherical body of the outer spherical shaft and is vertical to the axis; and (3) the outer ball shaft provided with the sliding block is arranged in the inner ball shaft, wherein the thickness dimension of the sliding block is just opposite to the groove with the width of F on the inner spherical surface of the inner ball shaft in the direction of F. By adopting the combination of the spherical single-slider universal coupling and the spline connection, the transmission input problem of the fuel centrifugal pump is better solved.
Description
The technical field is as follows:
the invention relates to the field of mechanical transmission, in particular to a spherical single-slider universal coupling (a slider rotating shaft is arranged on an outer ball part) for connecting two shafts and transmitting power when the two shafts are not concentric.
Background art:
in mechanical transmission, there are many methods for connecting and transmitting power between two concentric shafts, such as spline connection, key (mainly referring to flat key) connection, interference connection, pin connection, threaded connection, conical surface connection, quincunx elastic coupling connection, sleeve coupling connection, flange coupling connection, elastic coupling connection, and the like. Most of these connections solve the problem of transmission of motion and torque between two concentric shafts. If two shafts to be connected have the problem of different shafts in the working process and the different shafts have larger quantities, the transmission shaft and the related working machine can be damaged by using the connecting methods. Therefore, the invention provides a spherical single-slider universal coupling, and provides a solution for motion and torque transmission under the condition that two shafts are connected and have larger different shaft quantities in the working process.
The invention content is as follows:
a spherical single-slider universal coupling comprises an outer ball shaft part, a slider part and an inner ball shaft part and is used for solving the problem of transmission of movement and force under the condition of large different mental capacities possibly existing in the working process between two connected shafts.
Technical scheme of the invention
A spherical single-slider universal coupling comprises an inner ball shaft 1, a slider 2 and an outer ball shaft 3; the excircle section of the diameter phi B of the sliding block 2 is placed in a hole with the diameter phi B and the depth H on the diameter S phi A sphere of the outer spherical shaft 3, the diameter S phi A inner sphere of the sliding block 2 is attached to the diameter S phi A sphere of the outer spherical shaft 3, and the sliding block 2 rotates freely on the diameter S phi A sphere of the outer spherical shaft 3 by 360 degrees around the excircle center of the diameter phi B; the diameter phi B hole is formed on a plane which passes through the center of the S phi A sphere of the outer ball shaft 3 and is vertical to the axis of the diameter phi C; and (3) installing the outer ball shaft 3 with the slide block 2 into the inner ball shaft 1, wherein the slide block 2 is just opposite to the groove with the width of F on the inner spherical surface with the diameter S phi A of the inner ball shaft 1 in the thickness dimension of F.
The inner ball shaft 1 is of a split structure and consists of an outer end inner ball block 5, a screw 6 and a semi-inner ball shaft 7.
According to the split type inner ball shaft 1 in the last step, after the outer ball shaft 3 is installed in the semi-inner ball shaft 7, the outer end inner ball block 5 is fixedly connected with the outer end inner ball block 5 and the semi-inner ball shaft 7 through the screw 6.
And an adjusting gasket 4 is arranged at the joint of the outer end inner ball block 5 and the semi-inner ball shaft 7.
The adjusting shim 4 is made of the same material as the outer end inner ball block 5 and the inner ball shaft 7.
The number of screws 6 is determined according to the actual torque transmission requirements.
The hole with the diameter phi B can also be processed on a plane passing through the center of the sphere of the outer spherical shaft S phi A and having any included angle with the axis of phi C theoretically, and the center line of the hole with the diameter phi B passes through the center of the sphere of the outer spherical shaft S phi A.
The groove with the width F on the inner spherical surface of the diameter S phi A of the inner ball shaft 1 is a through groove or a blind groove.
A gap is reserved between the matched surfaces, and the gap is 0.01 mm.
Advantageous effects
As shown in the figure, if a spline, a flat key and other connection modes are adopted, when the different axial quantities of the transmission shaft T and the impeller shaft of the centrifugal pump are larger, normal transmission cannot be realized, and even the product is damaged. By adopting the combination of the spherical single-slider universal coupling and the spline connection (shown as U in the figure), the transmission input problem of the fuel centrifugal pump is better solved.
Description of the drawings:
FIG. 1 is a schematic diagram of a spherical single-slider universal coupling;
FIG. 2a is a side view of an inner ball axle component;
FIG. 2b is a schematic view of an inner ball shaft component;
FIG. 2c is a schematic view of the inner ball axle component;
FIG. 3a is a schematic view of a slider structure;
FIG. 3b shows a side view of the slider structure;
FIG. 3c is a block diagram of a slider;
FIG. 4a is a side view of an outer ball shaft component;
FIG. 4b is a front view of the outer ball axle component;
FIG. 5 is a diagram of the application of a spherical single-slider universal coupling (the slider rotating shaft is mounted on the outer ball part) in the transmission of a certain product.
The specific implementation mode is as follows:
the invention relates to a spherical single-slider universal coupling, which has a structure shown in figure 1 and comprises an inner ball shaft 1, a slider 2 and an outer ball shaft 3; as shown in fig. 3a, 3B and 3c, the outer circle section of the slide block 2 with the diameter phi B is placed in a hole with the diameter phi B and the depth H on the spherical surface with the diameter phi A of the outer spherical shaft 3 (shown in fig. 4a or 4B), the inner spherical surface with the diameter phi A of the slide block 2 is attached to the spherical surface with the diameter phi A of the outer spherical shaft 3, and the slide block 2 rotates freely on the spherical surface with the diameter phi B around the center of the outer circle with the diameter phi B by 360 degrees on the spherical surface with the diameter phi A of the outer spherical shaft 3; the diameter Φ B holes are made in a plane through the center of the diameter S Φ a sphere of the outer ball shaft 3 and perpendicular to the axis of the diameter Φ C. The outer ball shaft 3 with the slide block 2 is arranged in the inner ball shaft 1 (figure 2b), wherein the thickness dimension of the slide block 2 is the direction F and is opposite to the groove with the width F on the inner spherical surface with the diameter S phi A of the inner ball shaft 1.
Considering the assembly, the inner ball axle 1 is actually made in a split type, i.e. composed of an outer end inner ball block 5, a screw 6 and a half inner ball axle 7 (as shown in fig. 2b), and theoretically, the P-P section passes through the center of the S phi A sphere on the inner ball axle and is perpendicular to the phi D axis. After the assembly work is completed according to fig. 1, the outer ball shaft 3 can rotate flexibly in the inner ball shaft 1 and can transmit movement and torque.
According to the split type inner ball shaft 1 in the last step, after the outer ball shaft 3 is installed in the semi-inner ball shaft 7, the outer end inner ball block 5 is fixedly connected with the outer end inner ball block 5 and the semi-inner ball shaft 7 through the screw 6. After the assembly work is completed according to fig. 1, the outer ball shaft 3 can rotate flexibly in the inner ball shaft 1 and can transmit movement and torque.
And an adjusting gasket 4 is arranged at the joint of the outer end inner ball block 5 and the semi-inner ball shaft 7. Because the clearance after the interior ball axle 1 cuts needs to increase the gasket, in order to guarantee spherical integrity, just can make outer ball axle 3 nimble rotate in interior ball axle 1, the gasket also can play fine safeguard function in addition, prevents the friction loss between the part.
The adjusting shim 4 is made of the same material as the outer end inner ball block 5 and the inner ball shaft 7. The deformation and the rigidity of the material are the same, the integrity of the whole circle cannot be influenced, and the flexible rotation between the parts can be ensured.
The number of screws 6 is determined according to the actual torque transmission requirements.
The hole with the diameter phi B can also be processed on a plane passing through the center of the sphere of the outer spherical shaft S phi A and having any included angle with the axis of phi C theoretically, and the center line of the hole with the diameter phi B passes through the center of the sphere of the outer spherical shaft S phi A.
The groove with the width F on the inner spherical surface of the diameter S Φ a of the inner ball axle 1 may be a through groove as shown in fig. 2a, or may not be a through groove, as long as the use requirement is met. The size of the size K of the slide block 2 is determined according to actual needs.
In practical engineering application, each matched surface can actually leave a proper gap according to needs, and the movement between parts after assembly is flexible. A gap is reserved between the matched surfaces, and the gap is 0.01 mm.
IN fig. 5, M is 1 fuel centrifugal pump, the impeller rotates at high speed IN the working process, and fuel enters the centrifugal pump from "IN", is supplied by "OUT" after being pressurized by the impeller by applying work. The mounting flange N of the fuel centrifugal pump is connected with the tool P, and the tool is arranged on the workbench S. As shown in the figure, if a spline, a flat key and other connection modes are adopted, when the different axial quantities of the transmission shaft T and the impeller shaft of the centrifugal pump are larger, normal transmission cannot be realized, and even the product is damaged. By adopting the combination of the spherical single-slider universal coupling and the spline connection (shown as U in the figure), the transmission input problem of the fuel centrifugal pump is better solved.
Working principle of the invention
As shown in figure 1, the inner S phi A spherical surface and the outer S phi A spherical surface of the inner spherical shaft 1 and the outer spherical shaft 3 form a spherical joint, and the joint can flexibly rotate without a slide block 2 but cannot transmit motion and torque. When the phi B hole is processed on the outer ball shaft and the sliding block is arranged, the head part of the sliding block is F, and the part of the head part of the sliding block is arranged in the groove with the width of F corresponding to the inner ball body, the sliding block limits the circumferential rotation between the outer ball body and the inner ball body around the axis, and the joint characteristics between the two inner ball body and the outer ball body exist, so that the motion and the torque can be transmitted between the inner ball body and the outer ball body without losing the joint effect.
Claims (9)
1. A spherical single-slider universal coupling is characterized by comprising an inner ball shaft (1), a slider (2) and an outer ball shaft (3); the excircle section of the diameter phi B of the sliding block (2) is placed in a hole with the diameter phi B and the depth H on the diameter phi A sphere of the outer spherical shaft (3), the diameter phi A inner sphere of the sliding block (2) is attached to the diameter phi A sphere of the outer spherical shaft (3), and the sliding block (2) rotates freely on the diameter phi A sphere of the outer spherical shaft (3) by 360 degrees around the excircle center of the diameter phi B; the diameter phi B hole is formed on a plane which passes through the center of the S phi A sphere of the outer spherical shaft (3) and is vertical to the axis of the diameter phi C; and (3) installing the outer ball shaft (3) with the sliding block (2) into the inner ball shaft (1), wherein the thickness dimension of the sliding block (2) is just opposite to the groove with the width of F on the inner spherical surface with the diameter S phi A of the inner ball shaft (1).
2. A spherical single-slider type universal coupling according to claim 1, wherein the inner ball shaft (1) is a split structure comprising an outer end inner ball block (5), a screw (6) and a semi-inner ball shaft (7).
3. The universal coupling of a spherical single-slider type according to claim 2, characterized in that after the outer ball shaft (3) is installed in the semi-inner ball shaft (7), the semi-inner ball shaft (7) is fixedly connected by the outer end inner ball block (5) through the screw (6).
4. A spherical single-block type universal joint according to claim 3, wherein the joint of the outer end inner ball block (5) and the semi-inner ball shaft (7) is provided with an adjusting shim (4).
5. A ball and single-block type universal joint according to claim 4, wherein the adjusting shim (4) is made of the same material as the outer end inner ball block (5) and the semi-inner ball shaft (7).
6. A spherical single-block type universal joint according to claim 1, wherein the number of said screws (6) is determined according to the actual torque transmission requirement.
7. The universal coupling of claim 1, wherein the diameter Φ B is machined through the center of the sphere of the outer spherical shaft Φ a on a plane having any included angle with the axis Φ C, and the center line of the Φ B hole passes through the center of the outer spherical shaft Φ a.
8. A spherical single-slider type universal joint according to claim 1, wherein the grooves with width F on the inner spherical surface of the diameter S Φ a of the inner ball shaft (1) are through grooves or blind grooves.
9. A ball and single-slider type universal joint according to claim 1, wherein a gap is left between the mating surfaces, said gap being 0.01 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010724004.XA CN111894996A (en) | 2020-07-24 | 2020-07-24 | Spherical single-slider type universal coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010724004.XA CN111894996A (en) | 2020-07-24 | 2020-07-24 | Spherical single-slider type universal coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111894996A true CN111894996A (en) | 2020-11-06 |
Family
ID=73189928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010724004.XA Pending CN111894996A (en) | 2020-07-24 | 2020-07-24 | Spherical single-slider type universal coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111894996A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0119989A1 (en) * | 1983-03-18 | 1984-09-26 | Karl Hufnagl | Torque-transmitting universal joint |
| CN2382889Y (en) * | 1998-11-05 | 2000-06-14 | 杨佩兰 | Ball hinged T shape pin universal coupling |
| EP1085226A1 (en) * | 1999-09-20 | 2001-03-21 | Marco Torreggiani | Mechanical joint for variable angle power transmission |
| RU2377452C1 (en) * | 2008-06-04 | 2009-12-27 | Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации | Articulated coupling |
| CN101846140A (en) * | 2009-03-02 | 2010-09-29 | 通用汽车环球科技运作公司 | Constant velocity joint |
| CN105003558A (en) * | 2015-06-12 | 2015-10-28 | 马鞍山市华美联轴器有限公司 | Novel spherical hinge type universal coupler |
-
2020
- 2020-07-24 CN CN202010724004.XA patent/CN111894996A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0119989A1 (en) * | 1983-03-18 | 1984-09-26 | Karl Hufnagl | Torque-transmitting universal joint |
| CN2382889Y (en) * | 1998-11-05 | 2000-06-14 | 杨佩兰 | Ball hinged T shape pin universal coupling |
| EP1085226A1 (en) * | 1999-09-20 | 2001-03-21 | Marco Torreggiani | Mechanical joint for variable angle power transmission |
| RU2377452C1 (en) * | 2008-06-04 | 2009-12-27 | Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации | Articulated coupling |
| CN101846140A (en) * | 2009-03-02 | 2010-09-29 | 通用汽车环球科技运作公司 | Constant velocity joint |
| CN105003558A (en) * | 2015-06-12 | 2015-10-28 | 马鞍山市华美联轴器有限公司 | Novel spherical hinge type universal coupler |
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| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201106 |
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| RJ01 | Rejection of invention patent application after publication |