CN114233762B - Flexible coupling rod and coupling - Google Patents
Flexible coupling rod and coupling Download PDFInfo
- Publication number
- CN114233762B CN114233762B CN202111355285.7A CN202111355285A CN114233762B CN 114233762 B CN114233762 B CN 114233762B CN 202111355285 A CN202111355285 A CN 202111355285A CN 114233762 B CN114233762 B CN 114233762B
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- Prior art keywords
- transmission
- driven
- connecting rod
- driving
- flexible
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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
- F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
- F16D3/56—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic metal lamellae, elastic rods, or the like, e.g. arranged radially or parallel to the axis, the members being shear-loaded collectively by the total load
Abstract
The application relates to a flexible coupling rod comprising: the driving part and the driven part are connected through the transmission part, the driving part and the driven part are provided with shaft holes capable of being connected with a mechanical device, the transmission part can transmit torque from the driving part to the driven part, and the transmission part is constructed as an elastic part, so that the transmission part can be elastically deformed in the transmission process, and compensation displacement is generated. The flexible connecting rod can realize flexible connection between mechanical equipment and reduce counter force generated when the rod is displaced.
Description
Technical Field
The present application relates to a flexible coupling rod, and a coupling comprising a flexible coupling rod.
Background
In a mechanical system, the different mechanical transmission devices require certain components to be coupled in order to transfer motion and torque backward. The coupler has good displacement compensation performance and vibration and noise reduction capability in a mechanical system, so the coupler is often used for connecting mechanical transmission equipment in the industries of vehicles, ships, lifting, chemical industry, logistics and the like.
In the field of rail transit, the requirements on a locomotive transmission system are extremely high, the size of a transmission space is strictly limited, and as a key component of the transmission system, the locomotive coupler is required to improve and optimize the axial vibration frequency, reduce the vibration amplitude, and perform displacement compensation on the axial space and reduce noise. Therefore, conventional rigid connection rods or large-sized couplings have failed to meet rail transit vehicle development requirements. In addition, some elastic couplings used in rail vehicles have the problem of generating large counter forces by displacement along the axial direction thereof, which can adversely affect the bearings of the components of the transmission system, such as the traction motor, reducing bearing life.
Disclosure of Invention
The present application aims to address the technical problems described above by providing a flexible coupling rod. The flexible connecting rod can realize flexible connection between mechanical equipment and reduce counter force generated when the rod is displaced.
According to a first aspect of the present application there is provided a flexible coupling rod comprising a driving member and a driven member connected by a transmission member, the driving member and the driven member being formed with shaft bores for enabling connection of mechanical means, the transmission member being capable of transmitting torque from the driving member to the driven member.
The transmission element is designed as an elastic element, so that the transmission element can be elastically deformed during transmission, so that a compensating displacement is produced.
In a preferred embodiment, a protective layer is further provided on the transmission member, and vulcanization molding is adopted between the protective layer and the transmission member.
In a preferred embodiment, a plurality of slots are further provided in the protective layer.
In a preferred embodiment, the transmission element is configured as a plurality of elastic filaments connected between the driving element and the driven element, the filaments being made of carbon fiber material or nylon fiber material.
In a preferred embodiment, connecting rods for connecting the filaments are provided on opposite side walls of the driving member and the driven member, respectively, and the plurality of filaments are uniformly arranged on the connecting rods in the width direction.
In a preferred embodiment, the connecting rod has a first gap between the connecting rod and the driving member and the driven member in the length direction, respectively, and the fiber is formed in a ring shape, and both ends of the fiber are respectively passed through the first gap to be wound around the connecting rod.
In a preferred embodiment, the connecting rod is constructed in a flat plate shape, serial holes penetrating the connecting rod in the height direction are respectively provided on opposite side walls of the driving member and the driven member, and both ends of the fiber yarn are respectively penetrated through the serial holes to be wound around the connecting rod.
In a preferred embodiment, the connecting rod is configured in a flat plate shape, and a plurality of reinforcing ribs are symmetrically provided at both ends in the height direction of the connecting rod.
In a preferred embodiment, the transmission element is configured as a sheet-like fiber cloth made of the fiber threads, which is connected between the driving element and the driven element.
In a preferred embodiment, the driving member and the driven member comprise an upper plate body and a lower plate body which are arranged along the height direction, a second gap is formed between the upper plate body and the lower plate body, and two ends of the fiber sheet respectively extend into and are connected in the second gap.
According to a second aspect of the present application there is provided a coupling comprising a plurality of said flexible coupling rods. The flexible shaft connecting rods are connected end to end through the pin shafts penetrating through the shaft holes, so that the flexible shaft connecting rods are annular, and the side walls at two ends of the shaft connecting rods are respectively provided with a power input shaft and a power output shaft which can be connected with a mechanical device.
In a preferred embodiment, the number of flexible coupling rods is set to an integer multiple of 2.
Drawings
The present application will be described below with reference to the accompanying drawings.
Fig. 1 shows a schematic view of a flexible coupling rod according to an embodiment of the application.
Fig. 2 is a schematic view of a driving member and a driven member of another embodiment of the flexible coupling rod shown in fig. 1.
Fig. 3 is a schematic view of another embodiment of the transmission of the flexible coupling rod shown in fig. 1.
Fig. 4 is a schematic view of another embodiment of the flexible coupling rod shown in fig. 1.
Fig. 5 is a schematic view of a coupling made up of the flexible coupling rod shown in fig. 1.
In the present application, all of the figures are schematic drawings which are intended to illustrate the principles of the application only and are not to scale.
Detailed Description
The application is described below with reference to the accompanying drawings.
Fig. 1 shows a flexible coupling rod 100 according to one embodiment of the application. As shown in fig. 1, the flexible coupling rod 100 includes a driving member 10 and a driven member 20. The driving member 10 and the driven member 20 are connected through a transmission member 30, and the transmission member 30 can transmit torque from the driving member 10 to the driven member 20. Meanwhile, shaft holes 15 are provided on the driving member 10 and the driven member 20, respectively, and the driving member 10 and the driven member 20 can be connected to different mechanical devices (not shown) through the shaft holes 15, respectively. In this way, when the mechanical equipment connected to the driving piece 10 moves, the driving piece 10 can be driven to move, and torque is transmitted to the driven piece 20 through the transmission piece 30, so that the mechanical equipment connected to the driven piece 20 is driven to move, and torque transmission among different mechanical equipment is realized.
Herein, for convenience, the term "length direction" means a direction extending from the driving member 10 to the driven member 20, i.e., a horizontal direction of the drawing in fig. 1, and the term "width direction" means a vertical direction of the drawing in fig. 1, and the term "height direction" means a direction perpendicular to the drawing in fig. 1.
In the present application, the transmission member 30 is configured as an elastic member, so that the transmission member 30 can be elastically deformed during transmission to generate a compensation displacement, thereby achieving flexible connection between different mechanical devices. By this arrangement, the vibration damping and noise reducing capabilities of the mechanical device can be improved during transmission.
Further, the transmission member 30 is configured as a fiber yarn 32 having elasticity connected between the driving member 10 and the driven member 20. The filaments 32 are preferably made of carbon fiber material or nylon fiber material, which have good strength and toughness to meet the elastic deformation requirements during transmission. At the same time, the lower density of these materials, compared to the metallic materials commonly used in prior art transmission devices, can effectively reduce the mass of the flexible coupling rod 100. Also, the number of the filaments 32 may be set to be plural, so that the strength of the transmission member 30 can be increased or decreased by increasing or decreasing the number of the filaments 32, thereby adapting to different connection conditions.
As shown in fig. 1, connecting rods 22 are connected to opposite side walls 25 of the driving member 10 and the driven member 20, respectively, and the connecting rods 22 are arranged in the width direction. The two ends of the fiber yarn 32 are respectively connected to the connecting rod 22.
Specifically, a first gap 23 is provided between the connecting rod 22 and the longitudinal directions of the driving member 10 and the driven member 20, respectively. The fiber yarn 32 is formed in a ring shape, and both ends thereof pass through the first gaps 23, respectively, so as to be wound around the connecting rod 22. And, the plurality of filaments 32 are uniformly arranged in the width direction.
Thus, when it is necessary to increase the strength of the transmission member 30, it is possible to eliminate the need to accumulate a plurality of filaments 32 together in the height direction at the same position of the connecting rod 22 by merely increasing the number of filaments 32 in the width direction. With this arrangement, the dimension of the transmission member 30 in the height direction (i.e., the thickness of the transmission member 30) can be reduced as much as possible. Thereby enabling the flexible coupling rod 100 to be installed in a mounting environment having a small height.
On the other hand, when the transmission member 30 is elastically displaced by the stretching, a reaction force in the height direction is received, and this reaction force hinders the normal elastic displacement of the transmission member 30. While damaging the flexible coupling rod 100 when this reaction force is above a certain threshold. Since the magnitude of the reaction force is proportional to the dimension of the transmission member 30 in the height direction, the reaction force applied to the transmission member 30 decreases as the dimension thereof decreases in the height direction. In summary, the flexible connecting rod 100 of the present application can also effectively reduce the reaction force generated when the transmission member 30 is deformed, thereby protecting the transmission member 30.
Fig. 2 is a schematic view of the driving member 10 and the driven member 20 of another embodiment of the flexible joint lever 100 shown in fig. 1. As shown in fig. 2, in the present embodiment, the connection rod 22 connected to the driving member 10 and the driven member 20 is constructed in a flat plate shape. Series holes 24 penetrating the connection rod 22 in the height direction are respectively provided on opposite sidewalls of the driving member 10 and the driven member 20, and both ends of the fiber yarn are respectively penetrated through the series holes 24 to be wound around the connection rod.
Thus, the connecting rod 22 can be made to have a certain width in the length direction by configuring the connecting rod 22 in a flat plate shape. Thereby improving the connecting rod 22 to support the fiber yarn 32, reducing vibration of the fiber yarn 32 in the height direction during the stretching process, and reducing the risk of fracture failure of the fiber yarn 32
Further, as shown in fig. 2, a plurality of reinforcing ribs 321 are symmetrically provided at both ends in the height direction of the connecting rod 22. The plurality of reinforcing ribs 321 are preferably provided at the center and both ends of the connecting rod 22 in the width direction. The strength of the driving member 10 and the driven member 20 can be increased through the reinforcing ribs 321, and the driving member 10 and the driven member 20 are prevented from being damaged under the action of long-term tension, so that the failure risk of the driving member 10 and the driven member 20 is reduced, and the service life of the driving member is prolonged.
Fig. 3 is a schematic view of another embodiment of the transmission member 30 of the flexible joint lever 100 shown in fig. 1. As shown in fig. 3, the transmission member 30 is provided as a sheet-like fiber cloth 325 made of fiber filaments 32 by a spinning process or the like. Specifically, the driving member 10 and the driven member 20 respectively include an upper plate body 16 and a lower plate body 18 arranged in the height direction, and a second gap 17 is formed between the upper plate body 16 and the lower plate body 18. The two ends of the fiber cloth 325 respectively extend into the second gap 17 and form a fixed connection with the upper plate 16 and the lower plate 18 by crimping.
It will be readily appreciated that the individual filaments 32 are relatively low in strength due to their relatively small diameter and are prone to failure by breakage during the drawing process, particularly during vibration during the drawing process. By using the sheet-shaped fiber cloth 325 made of the fiber yarn 32 by a process such as spinning, the strength of the fiber yarn 32 can be effectively improved, the risk of breakage can be reduced, and the reliability of the transmission 30 can be improved. When the force strength of the transmission member 30 needs to be increased, the dimension of the fiber cloth 325 in the width direction is only increased, so that the dimension (i.e., the thickness) of the fiber cloth 325 in the height direction is prevented from being increased. Thereby reducing the reaction force in the height direction to which the fiber cloth 325 is subjected when it is elastically displaced.
Fig. 4 is a schematic view of another embodiment of the flexible coupling rod 100 shown in fig. 1. As shown in fig. 4, a protective layer 40 is further provided on the transmission member 30. The protective layer 40 is made of an elastic material, which may be rubber, for example, which is provided on the transmission member 30 by a vulcanization process. The protective layer 40 can protect and manufacture the transmission member 30 on one hand, and prevent the transmission member 30 from being damaged by external objects; on the other hand, the protective layer 40 can also maintain the wound state of the filaments 32, and improve the reliability of the transmission 30.
Further, a plurality of hollowed-out slots 45 are further disposed on the protection layer 40. The plurality of slots 45 are arranged along the width direction of the protective layer 40. The provision of slots 45 reduces the stiffness of the protective layer 40 and thus facilitates elastic displacement of the flexible coupling rod 100.
In the present application, a worker may splice a plurality of the flexible coupling rods 100 to form the coupling 50 as desired.
Fig. 5 is a schematic view of a coupling 50 comprised of the flexible coupling rod 100 shown in fig. 1. As shown in fig. 5, the plurality of flexible coupling rods 100 are connected end to end by pin shafts 151 passing through the shaft holes 15, thereby forming a ring shape. A power input shaft 52 and a power output shaft 54 to which a mechanical device can be connected are provided on side walls of both ends of the coupling 50, respectively. The flexible coupling rod 100 is equally divided into two groups, one of which is connected to the power input shaft 52 and the other of which is connected to the power output shaft 54. The number of flexible coupling rods 100 is thus set to an integer multiple of 2 in order to ensure stability of the coupling 50.
The coupling 50 formed by the 4 flexible coupling rods 100 of fig. 5 is described in detail below.
As shown in fig. 5, two of the flexible coupling shafts 100 of the coupling 50 are connected to the power input shaft 52 to form the drive shaft 56, and the other two are connected to the power output shaft 54 to form the driven shaft 58.
When the mechanical device connected to the power input shaft 52 moves, power enters from the input shaft 52 and is transferred to the two drive shafts 56 through the connection, causing the two drive shafts 56 to be stretched. The other two driven shafts 58 are then compressed by the drive shaft 56 and transmit torque to the power take-off shaft 54, thereby completing the torque transmission.
When there is a change in axial displacement between the power input shaft 52 and the power output shaft 54, the flexible coupling rod 100 is capable of completing displacement in the axial direction by using elastic deformation of the fibers, thereby satisfying the requirement for elastic displacement between the power input shaft 52 and the power output shaft 54.
The operation of the flexible coupling rod 100 according to the present application is briefly described below.
The flexible coupling rod 100 of the present application is coupled to both mechanical devices simultaneously, enabling torque transfer between the two mechanical devices. When the mechanical equipment connected to the driving piece 10 moves, the driving piece 10 can be driven to move, and torque is transmitted to the driven piece 20 through the transmission piece 30, so that the mechanical equipment connected to the driven piece 20 is driven to move, and torque transmission among different mechanical equipment is realized. In this process, the transmission member 30 is configured as an elastic member, so that the transmission member 30 can be elastically deformed during transmission, thereby generating compensation displacement, thereby realizing flexible connection between different mechanical devices, and improving vibration damping capacity and noise reduction capacity of the mechanical devices.
Finally, it should be noted that the above description is only of a preferred embodiment of the application and is not to be construed as limiting the application in any way. Although the application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the techniques described in the foregoing examples, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (5)
1. A flexible axle rod comprising:
a driving part (10) and a driven part (20) which are connected by a transmission part (30), wherein shaft holes (15) capable of being connected with a mechanical device are formed on the driving part and the driven part, the transmission part can transmit the moment from the driving part to the driven part,
the transmission member is configured as an elastic member such that the transmission member is elastically deformed during transmission to thereby generate a compensation displacement,
the transmission element is configured as a plurality of elastic fiber wires (32) connected between the driving element and the driven element,
connecting rods (22) for connecting the plurality of elastic fiber wires are respectively arranged on the opposite side walls of the driving piece and the driven piece, the plurality of elastic fiber wires are uniformly arranged on the connecting rods in the width direction and are parallel to each other,
first gaps (23) are respectively arranged between the connecting rod and the length directions of the driving piece and the driven piece, the plurality of elastic fiber wires are in ring-shaped structures, two ends of the elastic fiber wires respectively pass through the first gaps so as to be wound on the connecting rod,
the connecting rod is in a flat plate shape, serial holes (24) penetrating through the connecting rod in the height direction are respectively arranged on the opposite side walls of the driving part and the driven part, two ends of the plurality of elastic fiber wires respectively penetrate through the serial holes so as to be wound on the connecting rod,
the transmission part is also provided with a protective layer (40), vulcanization molding is adopted between the protective layer and the transmission part, wherein a plurality of slotted holes (45) are also arranged on the protective layer.
2. The flexible coupling rod of claim 1, wherein the fiber filaments are made of a carbon fiber material or a nylon fiber material.
3. The flexible joint lever according to claim 1 or 2, characterized in that a plurality of reinforcing ribs (321) are also symmetrically arranged at both ends in the height direction of the connecting rod.
4. A coupling comprising a plurality of flexible joint shafts according to any one of claims 1 to 3, said plurality of flexible joint shafts being connected end to end by pin shafts (151) passing through said shaft holes so as to be formed in a ring shape,
the side walls of the two ends of the coupler are respectively provided with a power input shaft (52) and a power output shaft (54) which can be connected with a mechanical device.
5. The coupling of claim 4, wherein the number of flexible coupling rods is set to an integer multiple of 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111355285.7A CN114233762B (en) | 2021-11-16 | 2021-11-16 | Flexible coupling rod and coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111355285.7A CN114233762B (en) | 2021-11-16 | 2021-11-16 | Flexible coupling rod and coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114233762A CN114233762A (en) | 2022-03-25 |
| CN114233762B true CN114233762B (en) | 2023-09-08 |
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ID=80749565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111355285.7A Active CN114233762B (en) | 2021-11-16 | 2021-11-16 | Flexible coupling rod and coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114233762B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5163876A (en) * | 1990-07-30 | 1992-11-17 | Kop-Flex, Inc. | Method of constructing a composite flexible coupling element |
| JPH0893781A (en) * | 1994-09-29 | 1996-04-09 | Unisia Jecs Corp | Flexible joint and its manufacture |
| JPH08261246A (en) * | 1995-01-24 | 1996-10-08 | Unisia Jecs Corp | Flexible joint |
| CN1617985A (en) * | 2002-01-25 | 2005-05-18 | Nok株式会社 | Flexible coupling |
| WO2007090890A1 (en) * | 2006-02-10 | 2007-08-16 | Wulf Gaertner Autoparts Ag | Method for manufacturing a loop unit |
| CN202100622U (en) * | 2011-06-10 | 2012-01-04 | 施建昌 | Elastic diaphragm of coupling |
| CN202510578U (en) * | 2012-03-21 | 2012-10-31 | 无锡创明传动工程有限公司 | Novel diaphragm component structure of coupler |
| CN103398116A (en) * | 2013-08-13 | 2013-11-20 | 兰州英克石化有限公司 | Coupling combined diaphragm |
| DE102019127763A1 (en) * | 2019-10-15 | 2021-04-15 | Hackforth Gmbh | coupling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011133084A (en) * | 2009-12-25 | 2011-07-07 | Toyota Motor Corp | Flexible coupling and vehicular power transmission device |
-
2021
- 2021-11-16 CN CN202111355285.7A patent/CN114233762B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5163876A (en) * | 1990-07-30 | 1992-11-17 | Kop-Flex, Inc. | Method of constructing a composite flexible coupling element |
| JPH0893781A (en) * | 1994-09-29 | 1996-04-09 | Unisia Jecs Corp | Flexible joint and its manufacture |
| JPH08261246A (en) * | 1995-01-24 | 1996-10-08 | Unisia Jecs Corp | Flexible joint |
| CN1617985A (en) * | 2002-01-25 | 2005-05-18 | Nok株式会社 | Flexible coupling |
| WO2007090890A1 (en) * | 2006-02-10 | 2007-08-16 | Wulf Gaertner Autoparts Ag | Method for manufacturing a loop unit |
| CN202100622U (en) * | 2011-06-10 | 2012-01-04 | 施建昌 | Elastic diaphragm of coupling |
| CN202510578U (en) * | 2012-03-21 | 2012-10-31 | 无锡创明传动工程有限公司 | Novel diaphragm component structure of coupler |
| CN103398116A (en) * | 2013-08-13 | 2013-11-20 | 兰州英克石化有限公司 | Coupling combined diaphragm |
| DE102019127763A1 (en) * | 2019-10-15 | 2021-04-15 | Hackforth Gmbh | coupling |
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| Publication number | Publication date |
|---|---|
| CN114233762A (en) | 2022-03-25 |
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