CN112128259B - Coupling with rubber bushing - Google Patents
Coupling with rubber bushing Download PDFInfo
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- CN112128259B CN112128259B CN202010993912.9A CN202010993912A CN112128259B CN 112128259 B CN112128259 B CN 112128259B CN 202010993912 A CN202010993912 A CN 202010993912A CN 112128259 B CN112128259 B CN 112128259B
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- assembly
- connecting disc
- taper
- shaft
- rubber bushing
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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
- F16D3/58—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 the intermediate members being made of rubber or like material
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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
- F16D3/70—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 elements arranged in holes in one coupling part and surrounding pins on the other coupling part
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides a rubber bushing coupling, comprising: the central pipe assembly comprises a central pipe and flanges fixedly connected to two ends of the central pipe; the two connecting disc assemblies are symmetrically arranged at two ends of the central tube assembly and comprise a first connecting disc and a second connecting disc, and the two connecting disc assemblies are respectively and fixedly connected with the power output shaft and the power transmission shaft through the corresponding second connecting discs; the first connecting disc is connected with the flange disc through a plurality of taper pin components, the second connecting disc is connected with the first connecting disc through a plurality of taper shaft components, rigidity adjusting devices are arranged between the taper pin components and the first connecting disc and between the taper shaft components and the first connecting disc, and the power output shaft outputs torque and transmits the torque to the power transmission shaft through the connecting disc assembly at one end, the central pipe component and the connecting disc assembly at the other end in sequence.
Description
Technical Field
The invention belongs to the technical field of mechanical transmission, and particularly relates to a rubber bushing coupling.
Background
The coupling is connected between the driving shaft and the driven shaft of different mechanisms and is mainly used for transmitting torque. The existing rubber connecting rod type coupler is difficult to assemble connecting rods, and the connecting rods are complex in shape, so that the initial dynamic balance effect of the coupler is poor, time and labor are wasted in the process of balancing the connecting rods, and the assembly and balancing efficiencies are low.
In addition, the rubber type coupling commonly used at present adopts a rubber connecting rod type structure, the structure is limited by the rigidity of the connecting rod component, so that the torsional rigidity of the coupling is small, and for a wind turbine type with large megawatt, the low torsional rigidity means low strength, the fatigue life can be seriously influenced, and the coupling is not suitable for use. And, the rubber connecting rod type structure assembly is more complicated, and the assembly of the whole connecting rod can only be carried out in a wind power main engine plant, and for the main engine plant requiring high-efficiency assembly, the assembly efficiency of the coupler is low, and the applicability is poor.
Disclosure of Invention
In view of the above technical problems, the present invention is directed to a rubber bush coupling, which can significantly improve torque transmission performance, can compensate axial, radial, and angular displacements between a power output shaft and two power transmission shafts, and can adjust the stiffness of the rubber bush coupling.
To this end, according to the invention, a rubber-lined coupling is provided, comprising: the central pipe assembly comprises a central pipe and flange plates fixedly connected to two ends of the central pipe; the two connecting disc assemblies are symmetrically arranged at two ends of the central tube assembly and comprise a first connecting disc and a second connecting disc, and the two connecting disc assemblies are respectively and fixedly connected with a power output shaft and a power transmission shaft through the corresponding second connecting discs; the first connecting disc is connected with the flange plate through a plurality of taper pin components, the second connecting disc is connected with the first connecting disc through a plurality of taper shaft components, the taper pin components are connected with the first connecting disc, the taper shaft components are connected with the first connecting disc through rigidity adjusting devices, the power output shaft outputs torque and sequentially passes through one end, the connecting disc assembly, the central pipe assembly and the other end, the connecting disc assembly transmits the torque to the power transmission shaft, the rubber bushing coupler passes through the connecting disc assembly and the rigidity adjusting devices can realize axial, radial and angular displacement compensation between the power output shaft and the power transmission shaft, and the rigidity of the rubber bushing coupler can be adjusted by adjusting the quantity of the rigidity adjusting devices.
In one embodiment, the stiffness adjustment device is a rubber bushing assembly or a rubber ball hinge assembly.
In one embodiment, a plurality of first mounting holes and a plurality of second mounting holes are formed in the first connecting disc, the first mounting holes are located on the radial inner side of the second mounting holes, the first mounting holes are used for mounting the taper pin assemblies, and the second mounting holes are used for mounting the taper shaft assemblies.
In one embodiment, the first mounting holes and the second mounting holes are uniformly distributed along the circumferential direction of the first connecting disc, and the first mounting holes and the second mounting holes are alternately distributed in a staggered manner in the circumferential direction.
In one embodiment, a plurality of first kidney-shaped grooves and second kidney-shaped grooves are symmetrically arranged on two end faces of the first connecting disc, the first kidney-shaped grooves are distributed between the circumferential directions of the adjacent first mounting holes, and the second kidney-shaped grooves are distributed between the circumferential directions of the adjacent second mounting holes.
In one embodiment, the rubber bushing component comprises an inner taper sleeve, an outer sleeve sleeved on the radial outer side of the inner taper sleeve and a rubber layer arranged between the inner taper sleeve and the outer sleeve, the inner taper sleeve, the outer sleeve and the rubber layer are compounded into a whole in a vulcanization molding mode,
the outer peripheral surface of the outer sleeve is used for being installed in a matched mode with the first installation hole or the second installation hole, and the inner wall surface of the inner taper sleeve is used for being installed in a matched mode with the taper pin assembly or the taper shaft assembly.
In one embodiment, the inner diameter of the inner taper sleeve is configured to decrease from the first end to the second end, thereby tapering an inner wall surface of the inner taper sleeve,
the first end of the inner taper sleeve installed in the first installation hole faces the flange plate, and the first end of the inner taper sleeve installed in the second installation hole faces the second connection plate.
In one embodiment, the taper pin assembly comprises a taper pin, wherein the outer peripheral surface of the taper pin is configured into a taper surface capable of being matched with the inner wall surface of the inner taper sleeve, and the taper pin is in interference fit with the inner taper sleeve correspondingly installed in the first installation hole.
In one embodiment, the taper pin assembly further comprises a first fastening piece, the taper pin is provided with a central through hole extending axially, a spigot is arranged at one end of the taper pin close to the flange plate, the flange plate is provided with a countersunk threaded hole capable of corresponding to the first mounting hole,
the first fastener penetrates through the central through hole to be in adaptive connection with the countersunk head threaded hole, and the spigot is in interference fit with the countersunk head threaded hole, so that the first connecting disc is connected with the flange disc through the taper pin assembly and the rubber bushing assembly.
In one embodiment, the taper shaft assembly comprises a taper shaft, the outer peripheral surface of the taper shaft is configured into a taper surface capable of being matched with the inner wall surface of the inner taper sleeve, and the taper shaft is in interference fit with the inner taper sleeve correspondingly installed in the second installation hole.
In one embodiment, the conical shaft assembly further comprises a second fastening piece, the first end of the conical shaft is provided with a threaded blind hole extending inwards in the axial direction, the second connecting disc is provided with a countersunk through hole capable of corresponding to the second mounting hole,
the cone shaft sequentially penetrates through the countersunk head through hole and the inner taper sleeve correspondingly installed in the second installation hole, and the second fastener is in adaptive connection with the threaded blind hole, so that the first connecting disc is connected with the second connecting disc.
In one embodiment, the cone shaft assembly further comprises a plurality of baffles, the baffles are arranged at the second ends of the corresponding cone shafts, and the baffles are fixedly connected with the second connecting discs through fixing pieces.
In one embodiment, the central tube is fixedly connected with the flange plate by means of bonding.
Compared with the prior art, the method has the advantages that:
the rubber bushing coupling can remarkably improve the torque transmission performance, and the rigidity of the rubber bushing coupling can be adjusted by adjusting the number of the rigidity adjusting devices. When the rubber bushing coupling works normally, the output torque of the power output shaft can be transmitted to the power transmission shaft. When the power output shaft or the power transmission shaft is not centered in a static state or high-speed rotation state, the axial, radial and angular displacement compensation between the power output shaft or the power transmission shaft can be realized through the rubber bushing coupler, so that the torque transmission performance and the transmission efficiency are greatly enhanced. The connection disc assembly of the rubber bushing coupling can be assembled independently and subjected to a balance test independently, and the influence of centrifugal force caused by unbalance on bearings at the gear box end and the generator end can be effectively reduced. In addition, the rubber bushing coupling is simple in structure, low in manufacturing cost and high in assembling efficiency.
Drawings
The invention will now be described with reference to the accompanying drawings.
Fig. 1 shows the structure of a rubber bush coupling according to the present invention.
Fig. 2 is a side view of the rubber bushing coupling shown in fig. 1.
Fig. 3 is a cross-sectional view taken along line E-E in fig. 2.
Fig. 4 is a cross-sectional view taken along the line F-F in fig. 2.
Fig. 5 shows the structure of the first coupling disc in the rubber bush coupling shown in fig. 3.
Fig. 6 is a cross-sectional view taken along line a-a of fig. 5.
Fig. 7 shows the structure of the rubber bushing assembly.
Fig. 8 is an enlarged view of the area D in fig. 4.
Fig. 9 is an enlarged view of the region C in fig. 3.
In the present application, the drawings are all schematic and are used only for illustrating the principles of the invention and are not drawn to scale.
Detailed Description
The invention is described below with reference to the accompanying drawings.
Fig. 1 shows the structure of a rubber bush coupling 100 according to the present invention. As shown in fig. 1, the rubber bushing coupling 100 includes a center tube assembly 20 and two coupling disc assemblies 10 symmetrically disposed at both ends of the center tube assembly 20. The two connecting disc assemblies 10 are respectively used for connecting a power output shaft and a power transmission shaft, and the power output shaft outputs torque and transmits the torque to the power transmission shaft through the rubber bushing coupler 100, so that the function of transmitting the torque is realized. For example, the power output shaft may be a gear box end, the power transmission shaft may be a generator, the gear box end and the generator are respectively connected to both ends of the rubber bush coupling 100, and the output torque of the gear box end is transmitted to the generator through the rubber bush coupling 100.
Fig. 3 is a cross-sectional view taken along line E-E in fig. 2. As shown in FIG. 3, the center tube assembly 20 includes a center tube 21 and flanges 22 fixedly attached to opposite ends of the center tube 21. The flange 22 is used for fixedly connecting with the connecting disc assembly 10. In one embodiment, the center tube 21 is made of a fiberglass material. The central tube 21 and the flange 22 are fixedly connected by bonding, so that the central tube 21 and the flange 22 have insulating property. For example, the central tube 21 and the flange 22 are bonded by a high-strength adhesive, and the bonding manner of the central tube 21 and the flange 22 can make the stress distribution uniform, so as to avoid stress concentration and significantly improve the fatigue life of the central tube assembly 20.
In the present embodiment, the inner wall surfaces of both ends of the center tube 21 are configured as negative taper connection buttons. The flange plate 22 is constructed in a flange structure extending radially inward, and one end of the flange plate 22 is provided with a connecting end extending axially, and the outer wall surface of the connecting end is provided with a positive taper connecting buckle capable of being connected with the negative taper connecting buckle in an adaptive manner. Therefore, the flange plate 22 is connected with the negative conical connecting buckle of the central tube 21 in an adaptive manner through the positive conical connecting buckle and is fixedly connected through a bonding mode. In addition, the flange plate 22 is further provided with a plurality of countersunk threaded holes 221 which are uniformly distributed in the circumferential direction and used for connecting and installing the connecting disc assembly 10.
As shown in fig. 3 and 4, the land assembly 10 includes a first land 11 and a second land 12. The first connecting disc 11 is used for being connected with the flange disc 22, and the connecting disc assemblies 10 at two ends of the central tube component 20 are respectively and fixedly connected with the power output shaft and the power transmission shaft through the corresponding second connecting discs 12. The first interface disc 11 is connected to the flange 22 by a plurality of taper pin assemblies 30 and the second interface disc 12 is connected to the first interface disc 11 by a plurality of taper pin assemblies 40.
Fig. 5 and 6 show the structure of the first connection pad 11. As shown in fig. 5 and 6, the first connecting disk 11 is configured in a ring plate shape. The first flange 11 is provided with a plurality of first mounting holes 111 and a plurality of second mounting holes 112, and the first mounting holes 111 are located radially inward of the second mounting holes 112. The plurality of first mounting holes 111 and the plurality of second mounting holes 112 are respectively provided so as to be evenly distributed in the circumferential direction, and the first mounting holes 111 and the second mounting holes 112 are alternately distributed in a staggered manner in the circumferential direction. First mounting hole 111 is used to mount taper pin assembly 30 and second mounting hole 112 is used to mount taper pin assembly 40. For example, in the embodiment shown in fig. 3, the first connection plate 11 is provided with 6 first mounting holes 111 and 6 second mounting holes 112, respectively. The distribution structure of the first mounting holes 111 in the second mounting holes 112 can ensure the stability of connection between the land assembly 10 and the central tube assembly 20 and the power output shaft or the power transmission shaft, and ensure the stability of torque transmission, thereby being beneficial to improving the torque transmission performance of the rubber bushing coupling 100.
According to the present invention, a plurality of first and second kidney-shaped grooves 113 and 114 are symmetrically provided on both end surfaces of the first connection pad 11. As shown in fig. 5, the first and second slots 113 and 114 are arranged to extend circumferentially. The first kidney grooves 113 are provided radially inward of the second kidney grooves 114, the first kidney grooves 113 are distributed between the circumferential directions of the adjacent first mounting holes 111, and the second kidney grooves 116 are distributed between the circumferential directions of the adjacent second mounting holes 112. The first and second slots 113 and 114 can effectively reduce the weight of the first connecting disc 11, thereby facilitating the reduction of the overall weight of the rubber bush coupling 100.
In one embodiment, the first connecting plate 11 may be made of a metal material, and may be formed by forging or casting. The first connecting disc 11 may also be made of a composite material, which may be compression molded.
According to the present invention, stiffness adjustment devices 50 are provided between the taper pin assembly 30 and the first coupling plate 11, and between the taper shaft assembly 40 and the first coupling plate 11. Specifically, the stiffness adjustment device 50 is disposed at the connection of the taper pin assembly 30 and the first connecting disk 11 and the taper shaft assembly 40 and the first connecting disk 11. The power output shaft outputs a torque sequentially through the land assembly 10 at one end of the center pipe assembly 20, and the land assembly 10 at the other end of the center pipe assembly 20, thereby transmitting the torque to the power transmission shaft. The stiffness adjustment device 50 may be a rubber bushing assembly or a rubber ball hinge assembly.
Fig. 7 shows the structure of the rubber bushing assembly. As shown in fig. 7, the rubber bushing assembly 50 includes an inner taper sleeve 51, an outer sleeve 52 fitted over a radial outer side of the inner taper sleeve 51, and a rubber layer 53 disposed between the inner taper sleeve 51 and the outer sleeve 52, and the inner taper sleeve 51, the outer sleeve 52, and the rubber layer 53 are compounded into a whole by vulcanization molding. The outer peripheral surface of the outer sleeve 52 is adapted to be fitted into the first fitting hole 111 or the second fitting hole 112 of the first connecting disk 11, and the inner wall surface of the inner taper sleeve 51 is adapted to be fitted into the taper pin assembly 30 or the taper shaft assembly 40. The shaft pin assembly 30 is mounted to the first mounting hole 111 of the first coupling plate 11 through the rubber bushing assembly 50, thereby forming a connection with the first coupling plate 11. The taper pin assembly 40 is mounted to the second mounting hole 112 of the first coupling plate 11 through the rubber bushing assembly 50, thereby forming a connection with the first coupling plate 11.
According to the present invention, the inner diameter of the inner taper sleeve 51 is configured to decrease from a first end (left end in FIG. 7) to a second end (right end in FIG. 7) such that the inner wall surface of the inner taper sleeve 51 is tapered. When the rubber bushing assembly 50 is mounted, the first end of the inner tapered sleeve 51 of the first mounting hole 111 is mounted toward the flange 22, and the first end of the inner tapered sleeve 51 of the rubber bushing assembly 50 of the second mounting hole 112 is mounted toward the second connecting plate 12. Thereby, the rubber bush assembly 50 is mounted in the first mounting hole 111 and the second mounting hole 112 of the first flange 11 in opposite directions. This not only facilitates the installation, but also ensures the stability of the installation and connection of the land assembly 10.
Fig. 8 is an enlarged view of the area D in fig. 4. As shown in fig. 8, taper pin assembly 30 includes taper pin 31 and first fastener 32. The outer peripheral surface of the taper pin 31 is configured as a taper surface capable of fitting with the inner wall surface of the inner taper sleeve 51, and the taper pin 31 is interference-fitted with the inner taper sleeve 51 in the rubber bush assembly 50 correspondingly installed in the first installation hole 111. The taper pin 31 is further provided with a central through hole 311 extending axially, and the periphery of the first end of the taper pin 31 close to the flange plate 22 is provided with an annular protrusion extending radially outwards, and the annular protrusion is located axially inwards of the first end, so that a spigot is formed at the first end of the taper pin 31. The plurality of countersunk screw holes 221 formed in the flange plate 22 can correspond to the first mounting holes 111 of the first connection plate 11. The outer peripheral tapered surface of the tapered pin 31 is fitted into the inner wall surface of the inner tapered sleeve 51 of the rubber bush assembly 50 fitted into the first fitting hole 111 to form a fixed connection. In one embodiment, the first fastener 32 may be a hex head bolt. The first fastening member 32 passes through the central through hole 311 to be fittingly connected with the countersunk threaded hole 221, and the spigot of the taper pin 31 is in interference fit with the countersunk threaded hole 221, thereby fixedly connecting the first connecting plate 11 and the flange plate 22 through the taper pin assembly 30 and the rubber bushing assembly 50.
Fig. 9 is an enlarged view of the region C in fig. 3. As shown in fig. 9, awl shaft assembly 40 includes awl shaft 41 and second fastener 42. The outer peripheral surface of the tapered shaft 41 is configured as a tapered surface capable of fitting with the inner wall surface of the inner taper sleeve 51, and the tapered shaft 41 is interference-fitted with the inner taper sleeve 51 correspondingly installed in the second installation hole 112 in the rubber bush assembly 50. A first end (right end in fig. 9) of the conical shaft 41 is provided with a threaded blind hole 411 extending axially inward, and a second end of the conical shaft 41 is provided with an annular convex portion extending radially outward to form a head. The second land 12 is provided with a countersunk through hole 121 that can correspond to the second mounting hole 112 in the first land 11. In one embodiment, the second fastener 42 may be a hex head bolt. The taper shaft 41 passes through the countersunk head through hole 121 of the second connecting disc 12 and the second mounting hole 112 of the first connecting disc 11 in sequence, and the head of the taper shaft 41 is matched with the countersunk head through hole 121, the peripheral conical surface of the taper shaft 41 is matched and mounted with the inner wall surface of the inner taper sleeve 51 correspondingly mounted in the second mounting hole 112, and meanwhile, the second fastener 42 is matched and mounted in the threaded blind hole 411 at the first end of the taper shaft 41, so that the first connecting disc 11 and the second connecting disc 12 are fixedly connected through the taper shaft assembly 40 and the rubber bushing assembly 50. In one embodiment, the conical shaft 41 and the countersunk through hole 121 are provided with chamfers, so that the installation of the conical shaft 41 can be guided, and the installation of the conical shaft 41 is greatly facilitated.
Further, the awl shaft assembly 40 can also include a plurality of baffles 43. As shown in fig. 2 and 9, the baffle 43 is disposed at the second end of the corresponding taper shaft 41, and is fixedly connected to the second connection plate by a fixing member 431. The baffle 43 can form effective axial limitation on the conical shaft 41, and further enhances the stability of the rubber bushing coupling 100.
The connecting disc assembly 10 according to the invention realizes the connection of the first connecting disc 11 and the second connecting disc 12, the connection of the first connecting disc 11 and the flange plate 22, and the connection of the second connecting disc 12 and a power output shaft or a power transmission shaft through the taper pin component 30, the taper shaft component 40 and the rigidity adjusting device 50. Further, the rigidity of the rubber bush coupling 100 can be adjusted by adjusting the number of the rigidity adjusting devices 50. The rubber bush coupling 100 can transmit the output torque of the power output shaft to the power transmission shaft during normal operation. When the power output shaft or the power transmission shaft is not centered in a static state or high-speed rotation state, the axial, radial and angular displacement compensation between the two shafts of the power output shaft or the power transmission shaft can be realized through the rubber bushing coupler 100.
In the assembling process, first, the rubber bushing assembly 50 is pressed into the first mounting hole 11 and the second mounting hole of the first connection plate 11 by a flat press, respectively. Wherein the first end of the inner cone 51 is mounted towards the flange 22 when the rubber bushing assembly 50 in the first mounting hole 111 is mounted. When the rubber bushing assembly 50 in the second mounting hole 112 is mounted, the first end of the inner taper sleeve 51 is mounted toward the second coupling plate 12. After the rubber bushing assembly 50 is correspondingly installed in the first connecting plate 11 and integrated with the first connecting plate 11, a dynamic balance test can be performed on a dynamic balance testing machine to ensure that the integrated assembly formed by the first connecting plate 11 and the rubber bushing assembly 50 meets the requirement of the specified dynamic balance grade.
The integral assembly of the first coupling disc 11 with the rubber bushing assembly 50 and the flange plate 22 of the central tube assembly 20 can then be assembled in the coupling factory. An end of the center tube assembly 20 is illustrated. Firstly, the taper pin assemblies 30 are fittingly mounted with the countersunk threaded holes 221 of the flange plate 22, so that the taper pin assemblies 30 and the flange plate 22 form a fixed connection until a plurality of taper pin assemblies 30 are correspondingly mounted in the corresponding countersunk threaded holes 221 of the flange plate 22. And then, the integral assembly formed by the first connecting disc 11 and the rubber bushing assembly 50 is installed and connected with the taper pin assembly 30, and specifically, the inner taper sleeve 51 of the rubber bushing assembly 50 in the first connecting disc 11 is correspondingly sleeved on the taper pin assembly 30. In the sleeving process, the taper pin assembly 30 has a centering function, and when the end surface of the first connecting disc 11 is not parallel to the end surface of the flange plate 22, the installation of the first connecting disc 11 can be adjusted by lightly knocking by a copper rod to ensure that the first connecting disc 11 is parallel to the flange plate 22. Thereafter, the first fastening members 32 are tightened, and all the first fastening members 32 are tightened by the crisscross method until a prescribed tightening torque is reached, so that an interference fit is formed between the outer circumferential tapered surface of the tapered pin 31 and the inner wall surface of the inner tapered sleeve 51 of the rubber bush assembly 50. The first flange 11 is thereby fixedly connected to the flange 22, so that torque can be transmitted. Similarly, the first connection disc 11 of another connection disc assembly 10 is fixedly connected with the other end of the central tube assembly 20 through the above steps.
The second interface disc 12 in the interface disc assembly 10 may then be installed at the wind turbine host plant. First, the second coupling disc 12 of the coupling disc assembly 10 for coupling to one end of the center pipe member 20 is assembled with a power output shaft (e.g., a gear box output shaft). Then, the second connecting disc 12 of the connecting disc assembly 10 for connecting to the other end of the center pipe assembly 20 is fit-connected to a power transmission shaft (e.g., a generator input shaft). During the installation process, the distance between the two second connecting discs 12 needs to be ensured to meet the requirement.
Then, the central tube assembly 20 is assembled with the first connecting disk 11 to form an assembly, and the assembly is integrally hoisted between the two second connecting disks 12 connected to the power output shaft end and the power transmission shaft end, respectively. The angle of the second connecting plate 12 connected to the power output shaft end is adjusted to ensure that the inner taper 51 of the rubber bush assembly 50 in the first connecting plate 11 is aligned with the countersunk through hole 121 of the second connecting plate 12 connected to the power output shaft end. Then, the conical shaft 41 in the conical shaft assembly 40 is sequentially passed through the countersunk head through hole 121 on the second connecting disc 12 and the inner taper 51 of the rubber bushing assembly 50 installed in the second installation hole 112, the second fastening member 42 is correspondingly installed in the threaded blind hole 411 at the end of the conical shaft 41, and the second fastening member 42 is screwed until the head of the conical shaft 41 is completely fitted with the countersunk head through hole 121. During the tightening process, all the second fastening members 42 are tightened by the crisscross method until a predetermined tightening torque is reached, so that an interference fit is formed between the outer circumferential tapered surface of the tapered shaft 41 and the inner wall surface of the inner tapered sleeve 51 of the rubber bush assembly 50. Then, the baffle 43 is correspondingly mounted on the axial outer side of the conical shaft 41 through the fixing member 431, so that the conical shaft 41 is axially limited. Thereby, the fitting connection between the second land 12 and the first land 11 is completed, and the connection between one end of the rubber bush coupling 100 and the power output shaft is completed. Likewise, the second coupling disc 11 of the other coupling disc assembly 10 is assembled and connected with the first coupling disc 11 of the other end of the center pipe assembly 20 through the above steps to complete the assembly and connection between the other end of the rubber bush coupling 100 and the power transmission shaft. Thereby, the assembly of the rubber bush coupling 100 is completed.
The process of transmitting torque of the rubber bush coupling 100 according to the present invention will be described. The rubber bushing coupler 100 has a first end connected to the power output shaft and a second end connected to the power transmission shaft. Firstly, the power output shaft outputs torque and transmits the torque to the connecting disc assembly 10 at the first end; the land assembly 10 at the first end then transmits torque to the center tube assembly 20; the center tube assembly 20 then transmits torque to the second end of the land assembly 10; then, the land assembly 10 of the second end transmits the torque to the power transmission shaft, thereby completing the transmission of the torque. The torque transmission process of the land assembly 10 at the first end is that the output torque of the power output shaft is transmitted to the second land 12, the taper shaft component 40, the rubber bushing component 50 in the second mounting hole 112, the first land 11, the rubber bushing component 50 in the first mounting hole 111, the taper pin component 30, the flange plate 22 and the middle pipe 21 in sequence. The torque transmission process of the connecting disc assembly 10 at the second end is that the middle pipe 21 transmits torque, which is transmitted to the flange plate 22, the taper pin component 30, the rubber bushing component 50 in the first mounting hole 111, the first connecting disc 11, the rubber bushing component 50 in the second mounting hole 112, the taper shaft component 40, the second connecting disc 12 and the power transmission shaft in sequence. Thereby, the torque transmission of the power output shaft to the power transmission shaft is completed through the rubber bush coupling 100.
The rubber bush coupling 100 according to the present invention can significantly improve torque transmission performance, and the rigidity of the rubber bush coupling 100 can be adjusted by adjusting the number of the rigidity adjusting devices 50. The rubber bush coupling 100 can transmit the output torque of the power output shaft to the power transmission shaft during normal operation. When the power output shaft or the power transmission shaft is not centered in a static state or high-speed rotation state, the axial, radial and angular displacement compensation between the two shafts of the power output shaft or the power transmission shaft can be realized through the rubber bushing coupler 100, so that the torque transmission performance and the transmission efficiency are greatly enhanced. The land assembly 10 of the rubber bushing coupling 100 can also be assembled separately and tested separately for balance, which effectively reduces the effect of centrifugal forces caused by imbalance on the gearbox end and generator end bearings. In addition, the rubber bush coupling 100 has a simple structure, low manufacturing cost, and high assembly efficiency.
Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and do not limit the present invention. Although the present invention 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 embodiments described in the foregoing examples, or that equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. A rubber bushing coupling comprising:
the central pipe assembly (20) comprises a central pipe (21) and flanges (22) fixedly connected to two ends of the central pipe;
the two connecting disc assemblies (10) are symmetrically arranged at two ends of the central pipe assembly, each connecting disc assembly comprises a first connecting disc (11) and a second connecting disc (12), and the two connecting disc assemblies are respectively and fixedly connected with the power output shaft and the power transmission shaft through the corresponding second connecting discs;
wherein the first connecting disc is connected with the flange disc through a plurality of taper pin components (30), the second connecting disc is connected with the first connecting disc through a plurality of taper shaft components (40), rigidity adjusting devices (50) are arranged between the taper pin components and the first connecting disc and between the taper shaft components and the first connecting disc, the output torque of the power output shaft is transmitted to the power transmission shaft through the connecting disc assembly at one end, the central pipe component and the connecting disc assembly at the other end in sequence,
the rubber bushing coupler is used for compensating axial, radial and angular displacements between the power output shaft and the power transmission shaft through the connecting disc assembly and the rigidity adjusting device, and the rigidity of the rubber bushing coupler can be adjusted through adjusting the number of the rigidity adjusting device.
2. A rubber bushing coupling according to claim 1, characterized in that said stiffness adjusting means is a rubber bushing assembly or a rubber ball hinge assembly.
3. A rubber bush coupling according to claim 2, characterized in that a plurality of first mounting holes (111) for mounting the taper pin assembly and a plurality of second mounting holes (112) for mounting the taper shaft assembly are provided on the first connection disc, the first mounting holes being radially inward of the second mounting holes.
4. The rubber bushing coupling according to claim 3, wherein a plurality of the first mounting holes and a plurality of the second mounting holes are provided evenly distributed in a circumferential direction of the first connecting disc, and the first mounting holes and the second mounting holes are alternately staggered in the circumferential direction.
5. A rubber bush coupling according to claim 3 or 4, wherein a plurality of first and second kidney grooves (113, 114) are symmetrically provided on both end faces of the first coupling disc, the first kidney grooves being distributed between the circumferential directions of the adjacent first mounting holes, and the second kidney grooves being distributed between the circumferential directions of the adjacent second mounting holes.
6. The coupling of claim 3, wherein said rubber bushing assembly comprises an inner taper sleeve (51), an outer sleeve (52) disposed radially outside said inner taper sleeve, and a rubber layer (53) disposed between said inner taper sleeve and said outer sleeve, said inner taper sleeve, said outer sleeve, and said rubber layer being compounded into a single body by vulcanization molding,
the outer peripheral surface of the outer sleeve is used for being installed in a matched mode with the first installation hole or the second installation hole, and the inner wall surface of the inner taper sleeve is used for being installed in a matched mode with the taper pin assembly or the taper shaft assembly.
7. The rubber bushing coupling of claim 6, wherein said inner taper is configured to decrease in inner diameter from a first end to a second end, thereby tapering an inner wall surface of said inner taper,
the first end of the inner taper sleeve installed in the first installation hole faces the flange plate, and the first end of the inner taper sleeve installed in the second installation hole faces the second connection plate.
8. A rubber bushing coupling according to claim 6, characterized in that said taper pin assembly comprises a taper pin (31) having an outer peripheral surface configured as a taper surface adaptable to an inner wall surface of said inner taper sleeve, said taper pin having an interference fit with said inner taper sleeve correspondingly mounted in said first mounting hole.
9. A rubber bushing coupling according to claim 8, characterized in that said taper pin assembly further comprises a first fastening member (32), said taper pin being provided with an axially extending central through hole (311), a spigot being provided at an end of said taper pin adjacent to said flange, said flange being provided with a countersunk threaded hole (221) adapted to correspond to said first mounting hole,
the first fastener penetrates through the central through hole to be in adaptive connection with the countersunk head threaded hole, and the spigot is in interference fit with the countersunk head threaded hole, so that the first connecting disc is connected with the flange disc through the taper pin assembly and the rubber bushing assembly.
10. A rubber bushing coupling according to claim 6, characterized in that said cone shaft assembly comprises a cone shaft (41) having an outer peripheral surface configured as a conical surface adapted to an inner wall surface of said inner cone, said cone shaft being interference fitted with said inner cone correspondingly mounted in said second mounting hole.
11. A rubber bushing coupling according to claim 10, characterized in that said cone shaft assembly further comprises a second fastening member (42), said cone shaft having a first end provided with a threaded blind hole (411) extending axially inwards, said second coupling disc being provided with a countersunk through hole (121) adapted to correspond to said second mounting hole,
the cone shaft sequentially penetrates through the countersunk head through hole and the inner taper sleeve correspondingly installed in the second installation hole, and the second fastener is in adaptive connection with the threaded blind hole, so that the first connecting disc is connected with the second connecting disc.
12. A rubber bushing coupling according to claim 10 or 11, characterized in that said cone shaft assembly further comprises a plurality of baffles (43) arranged at the second end of the corresponding cone shaft, said baffles being fixedly connected with said second coupling disc by means of fasteners (431).
13. A rubber bushing coupling according to claim 1, wherein said center tube is fixedly attached to said flange by bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010993912.9A CN112128259B (en) | 2020-09-21 | 2020-09-21 | Coupling with rubber bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010993912.9A CN112128259B (en) | 2020-09-21 | 2020-09-21 | Coupling with rubber bushing |
Publications (2)
| Publication Number | Publication Date |
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| CN112128259A CN112128259A (en) | 2020-12-25 |
| CN112128259B true CN112128259B (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010993912.9A Active CN112128259B (en) | 2020-09-21 | 2020-09-21 | Coupling with rubber bushing |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114321197B (en) * | 2021-11-29 | 2023-04-07 | 株洲时代新材料科技股份有限公司 | Compact coupling with adjustable rigidity |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3443485A1 (en) * | 1984-11-29 | 1986-06-05 | ATEC-Weiss KG, 4426 Vreden | FLEXIBLE ALL-STEEL COUPLING |
| CN85101485B (en) * | 1985-04-01 | 1987-03-11 | 成都无缝钢管厂 | Heavy-duty rubber elastic safety coupling |
| GB9215518D0 (en) * | 1992-07-22 | 1992-09-02 | Holset Engineering Co | A flexible coupling |
| EP0580443B1 (en) * | 1992-07-22 | 1996-12-18 | Renold Holset Couplings Limited | A flexible coupling |
| FR2696800B1 (en) * | 1992-10-08 | 1994-12-30 | Neyrpic Framatome Mecanique | Device for the rotational coupling of two independent drive shafts. |
| CN2610156Y (en) * | 2003-05-04 | 2004-04-07 | 江苏亨通光电股份有限公司 | Elastic covering coupling |
| CN201827263U (en) * | 2010-07-02 | 2011-05-11 | 黄天梵 | Building block type special-shaped diaphragm flexible coupling |
| CN202659755U (en) * | 2012-05-31 | 2013-01-09 | 南车青岛四方机车车辆股份有限公司 | Elastic flange assembly structure for internal-combustion engine |
| CN205578544U (en) * | 2015-10-26 | 2016-09-14 | 温州华特机械有限公司 | Novel coupler |
| US10446310B2 (en) * | 2016-06-01 | 2019-10-15 | Honeywell International Inc. | Linear variable displacement transformer (LVDT) with improved linearity using extreme end booster winding |
| CN206738421U (en) * | 2017-05-05 | 2017-12-12 | 谐铸动力科技（上海）有限公司 | A kind of shaft coupling |
| CN109470408B (en) * | 2018-10-12 | 2020-10-16 | 株洲时代新材料科技股份有限公司 | Dynamic balance testing device for coupler |
| CN209856256U (en) * | 2019-03-31 | 2019-12-27 | 丹东克隆先锋泵业有限公司 | Pin coupling for long shaft distance |
| CN210118390U (en) * | 2019-06-26 | 2020-02-28 | 洛阳精联机械基础件有限公司 | Insulating elastic cylindrical pin assembly for coupler |
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2020
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