CN208281391U - Universal coupling with spider and its test testing stand with overload protection - Google Patents
Universal coupling with spider and its test testing stand with overload protection Download PDFInfo
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- CN208281391U CN208281391U CN201820445261.8U CN201820445261U CN208281391U CN 208281391 U CN208281391 U CN 208281391U CN 201820445261 U CN201820445261 U CN 201820445261U CN 208281391 U CN208281391 U CN 208281391U
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- universal
- splined shaft
- overload protection
- universal coupling
- spider
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Abstract
The utility model discloses a kind of universal coupling with spider with overload protection and contain its test testing stand; belong to the ancillary equipment field of wind power generating set; including splined shaft and the left and right universal-joint fork for being connected to the splined shaft both ends; it is corresponding; left and right cross axle is connected separately on the outside of the left and right universal-joint fork; the splined shaft, left and right universal-joint fork and left and right cross axle are axial connection, are connected with limiter of moment between the left universal-joint fork and splined shaft；It is connected with transfer panel on the outside of the left cross axle, is provided on the outside of the transfer panel for the spare interface with generating set transmission chain link.The universal coupling with spider of the utility model; when carrying out generating set test; overload protection can be carried out in torque transmittance process; special setting is carried out additionally by transfer panel; different megawatt generation units are also accommodated, reduce the cost of testing equipment investment and fixed equipment to the greatest extent.
Description
Technical field
The utility model relates to the ancillary equipment field of wind power generating set, more particularly to a kind of with overload protection
Testing stand is used in universal coupling with spider and its test.
Background technique
Currently, tide energy or wind power generating set require that carrying out complete machine dynamic tests before factory.Complete machine dynamic is tested
Refer to and generating set is installed on testing stand, impeller is substituted come the operation of drive train main drive chain by testing stand dragging system
The load test of progress.Before testing, the unit on testing stand needs to connect progress with testing stand dragging system by shaft coupling
Torsion pass.
In the prior art, different technologies route and the generating set of different MW class are when carrying out load test, because of unit
With the variation of the axially mounted size of testing stand dragging system or size for connection etc., different megawatts according to different technologies route are needed
Grade unit is equipped with the universal coupling with spider of various specifications, increases corporate device input cost；And in different size
In cross axle type coupling replacement process, the waste of human cost and the decline of working efficiency are caused.
In dynamic testing process, because power grid powers off suddenly, testing stand failure, the set drive system failure, automatically controlled failure,
It overloads caused by artificial incorrect operation, the error of centralization are big etc. and shaft current problem that the ground faults such as generator generate, not only can
Generating set or testing stand are damaged, biggish property loss is caused, and will affect research and development of products progress, also will form
Adverse effect.
Utility model content
The purpose of the utility model is to provide one kind can either be carried out in torque transmittance process overload protection, be suitable for
The universal coupling with spider with overload protection of different megawatt generation units and the generating set test examination containing it
Test platform.
To achieve the above objectives, the present invention adopts the following technical solutions:
On the one hand, the utility model provides a kind of universal coupling with spider with overload protection, including splined shaft
It is corresponding with the left and right universal-joint fork for being connected to the splined shaft both ends, it is separately connected on the outside of the left and right universal-joint fork
There is left and right cross axle, the splined shaft, left and right universal-joint fork and left and right cross axle are axial connection, the left universal-joint fork
Limiter of moment is connected between splined shaft；It is connected with transfer panel on the outside of the left cross axle, is set on the outside of the transfer panel
It is equipped with for the spare interface with generating set transmission chain link.
Further, the spare interface includes the different multi-turn interface of internal diameter, is respectively used to other from different MW class
Generating set is driven chain link, and the transfer panel is driven chain link by bolt and generating set.
Further, the cross axle includes cross shaft body and the flanged structure for being connected to cross axle outer body, institute
It states and is provided with end-tooth on the inside of transfer panel, the flanged structure of the end-tooth and the left cross axle is bolted.
Further, the outer ring of the limiter of moment is connect with left universal-joint fork, the inner ring of the limiter of moment with
Spline axis connection；Insulation protection device is additionally provided between the limiter of moment inner and outer rings.
Further, the periphery of the splined shaft is equipped with spline housing, and one end of right universal-joint fork and the spline housing is fixed
Connection, the spline housing and splined shaft can relatively move.
Further, the periphery of the spline housing is provided with dirt-proof boot, and one end of the dirt-proof boot is fixedly connected on described
Splined shaft is close to the side of the limiter of moment, the removable company in the outside of the other end of the dirt-proof boot and the spline housing
It connects.
Further, the spline housing is being provided with outside outer lug close to splined shaft side, and the dirt-proof boot correspondence is set
It is equipped with the internal projection towards axle center and outer lug cooperation limit, the journey stop gear includes the internal projection and outer
Protrusion, the dirt-proof boot form the journey stop gear of the spline housing.
Further, the dirt-proof boot and the spline housing move junction and are provided with sealing ring.
Further, the card slot for installing the sealing ring is provided in the dirt-proof boot internal projection.
On the other hand, the utility model also provides a kind of generating set test testing stand, including testing stand dragging system,
It further include the universal coupling with spider with overload protection, the right cross axle is used to drag with the testing stand
System connection.
Due to the adoption of the above technical scheme, the utility model at least has the following advantages:
(1) universal coupling with spider of the utility model, when carrying out generating set test, limiter of moment can be with
Low-speed big is transmitted, and can be used in the transmitting small torque of high speed, and progress can be misaligned in torque transmittance process
Compensation, can carry out overload protection in torque transmittance process, carry out special setting additionally by transfer panel, also accommodate not
With megawatt generation unit, the cost of testing equipment investment and fixed equipment is reduced to the greatest extent.
(2) universal coupling with spider of the utility model uses limiter of moment, can prevent from dynamically testing
Because power grid powers off suddenly, testing stand failure, the set drive system failure, automatically controlled failure, artificial incorrect operation, the error of centralization are big in journey
The excessive load Deng caused by is transmitted to testing stand side or tide energy or wind power generating set side；The utility model is connected by transfer panel
It connects shaft coupling to connect with Wind turbines, one can be used from the size for connection of different megawatts of rank units by adjusting transfer panel
Platform or two shaft couplings cover the test demand of all units of some company, reduce testing equipment investment to the greatest extent and fix
The cost of equipment, and because shaft coupling replacement caused by manpower, the waste in working hour, greatly shorten the time of test,
Improve the testing efficiency and efficiency of research and development of product.
(3) the utility model uses the limiter of moment with insulation function, insulate to electric current, can shield dynamic and survey
The problems such as box bearing or base bearing are impaired caused by the shaft current generated during examination by ground faults such as generators, maximum journey
Degree avoids equipment damage, the generation of property loss and safety accident.
(4) splined shaft and spline housing of the utility model, when in use can by adjusting the length of fit of splined shaft and set,
And then the axial length of shaft coupling is adjusted, structure design, even if also can guarantee interior external splines most under longest working condition
Small effective active length, it is ensured that shaft coupling torsion pass reliability.
(5) it fastens, is linked together with splined shaft on the left of the dirt-proof boot of the utility model；Right side and spline housing pass through sealing ring
Sealing is formed, prevents dust or aqueous vapor etc. from entering the spline working face of splined shaft and spline housing, influences the service life of shaft coupling.
The journey stop gear formed on the right side of dirt-proof boot with spline housing can effectively be matched by the longest of limitation splined shaft and spline housing
Length is closed, to limit the extreme length of shaft coupling.
(6) the utility model installation is simple, and interchangeability is good, and high reliablity, long service life, ease for maintenance is strong, cost performance
Height, use scope are wide.
Detailed description of the invention
Above-mentioned is only the general introduction of technical solutions of the utility model, in order to better understand the technology hand of the utility model
Section, below in conjunction with attached drawing, the utility model is described in further detail with specific embodiment.
Fig. 1 is the structural schematic diagram of the universal coupling with spider with overload protection of the utility model；
Fig. 2 is the transfer panel structural schematic diagram of the utility model, wherein figure A is the axial section of transfer panel, and figure B is
Side view on the outside of transfer panel；
Fig. 3 is the spline shaft structure schematic diagram of the utility model；
Fig. 4 is the splined shaft of the utility model and the partial structure diagram of spline housing；
Fig. 5 is the dust-proof cover structure partial region schematic diagram of the utility model；
Fig. 6 is the dust-proof cover structure partial region enlarged diagram of the utility model.
Specific embodiment
The utility model provides a kind of embodiment of universal coupling with spider with overload protection, such as Fig. 1 to Fig. 6
It is shown, including splined shaft 4 and the left universal-joint fork 2, the right universal-joint fork 8 that are connected to 4 both ends of splined shaft, corresponding, left universal joint
The outside for pitching 2, right universal-joint fork 8 is connected separately with left cross axle 20, right cross axle 20 ', splined shaft 4, left universal-joint fork 2, the right side
Universal-joint fork 8 and left cross axle 20, right cross axle 20 ' are axial connection, are connected between left universal-joint fork 2 and splined shaft 4 strong
Square limiter 3；Be connected with transfer panel 1 on the outside of left cross axle 20, the outside of transfer panel 1 be provided with for generating set transmission chain
The spare interface of connection.
When the utility model is used, tide energy or wind-driven generator can be installed on when carrying out generating set test
Between group and testing stand dragging system, transfer panel is driven chain link, fastening by the whole circle bolt and generating set of outer ring, is led to
Cross to transfer panel carry out special setting, also accommodate different megawatt generation units, to the greatest extent reduce testing equipment investment and
The cost of fixed equipment.Overload protection can be carried out in torque transmittance process using limiter of moment, because limiter of moment is set
It sets between left universal-joint fork and splined shaft.Limiter of moment have need to peak torque, require when use the maximum of transmitting to turn round
Square, which is less than, need to use torque, and limiter of moment need to use the adjustable size of torque.It is limited using preceding Torque-adjusting according to actual needs
The peak torque that device processed allows to transmit in this test.Limiter of moment can also be misaligned in torque transmittance process and be mended
It repays, protection is formed to overload.
As an improvement as shown in Fig. 2, spare interface includes the different multi-turn interface of internal diameter, be respectively used to from it is different
The other generating set of MW class is driven chain link, and transfer panel 1 is driven chain link by bolt and generating set.Outside transfer panel 1
Circle can have the interface formed by several bolts.Transfer panel can be designed according to maximum megawatt of rank, the interface with set drive chain
All units of some company can be covered using one or two shaft couplings by different megawatt generation machine group platform spare interfaces
Test demand reduces the cost of testing equipment investment and fixed equipment to the greatest extent.
Further, cross axle 20 (or 20 ') includes cross shaft body and the flange knot for being connected to cross axle outer body
Structure, the inside of transfer panel 1 are provided with end-tooth 11, and end-tooth 11 and the flanged structure of left cross axle 20 are bolted.Turn
It connects disk and torsion pass is carried out by the end-tooth and shaft coupling cross axle of inner ring, axial connect is carried out by bolt and shaft coupling cross axle 20
It connects, fasten.Transfer panel 1 is connect with generating set transmission chain (dynamical system), is fastened by the whole circle bolt of outer ring.
In order to insulate to electric current, the outer ring of limiter of moment 3 is connect with left universal-joint fork 2, limiter of moment 3 it is interior
Ring is connect with splined shaft 4；It is additionally provided with insulation protection device between 3 inner and outer rings of limiter of moment, dynamic can be shielded and tested
The problems such as box bearing or base bearing are impaired caused by the shaft current generated in journey by ground faults such as generators, to the greatest extent
Avoid equipment damage, the generation of property loss and safety accident.Limiter of moment with insulation function can also pass through purchase
It obtains.
In order to facilitate the axial length for adjusting shaft coupling, the periphery of splined shaft 4 is equipped with spline housing 7, right universal-joint fork 8 and flower
One end of key set 7 is fixedly connected, and spline housing 7 and splined shaft 4 can relatively move.It when in use can be by adjusting splined shaft 4
With the length of fit of spline housing 7, and then adjust shaft coupling axial length.As shown in fig. 1, maximum elongation length is L；In axis
When needing to extend to length, splined shaft 4 is moved to the left, and spline housing 7 moves right；When axial length needs to shorten, splined shaft 4
It moves right, spline housing 7 is moved to the left.Structure design, even if under longest working condition, it is also ensured that interior external splines
Minimum effective active length, it is ensured that shaft coupling torsion pass reliability.
As shown in figure 1, figure 3 and figure 4, in order to reduce the spline that dust or steam etc. enter between splined shaft 4 and spline housing 7
Between 41, the periphery of spline housing 7 is provided with dirt-proof boot 5, and one end of dirt-proof boot 5 is fixedly connected on splined shaft 4 and limits close to torque
The side of device 3, the removable connection of the other end of dirt-proof boot 5 and the outside of spline housing 7.The embodiment of one of shaft coupling can
Think that the right end of spline housing 7 is fixedly connected with right universal-joint fork 8, the left end of dirt-proof boot 5 is fixedly connected with the left side of splined shaft 4,
The removable connection of the right end of dirt-proof boot 5 and the outside of spline housing 7, the right end of dirt-proof boot 5 can relatively move on the outside of spline housing, i.e.,
When adjusting the axial length of shaft coupling, dirt-proof boot 5 relatively moves on spline housing 7 with splined shaft 4, and splined shaft 4 is made to exist always
In the protection scope of dirt-proof boot 5 and spline housing, the working face that dust or steam etc. enter spline 41 is reduced, to extend shaft coupling
Service life, dirt-proof boot 5 formed spline housing 7 journey stop gear, to limit the extreme length of shaft coupling, dirt-proof boot 5
Length of the length slightly larger than maximum elongation length L in Fig. 1.
In above-described embodiment, spline housing 7 is being provided with outside outer lug 71 close to 4 side of splined shaft, and the correspondence of dirt-proof boot 5 is set
It is equipped with the internal projection 51 with the cooperation limit of outer lug 71 towards axle center, dirt-proof boot 5 forms the journey stop gear of spline housing 7.
The maximum moving distance of internal projection and outer lug cooperation limit dirt-proof boot and spline housing, thus long to limit the longest of shaft coupling
Degree.
In order to increase sealing effect, shown in Fig. 1, Fig. 5, Fig. 6, dirt-proof boot 5 and spline housing 7 move junction be provided with it is close
Seal 52.Sealing ring belongs to vulnerable part, can be replaced.
In order to facilitate replacing or installing sealing ring, the card for installing sealing ring 52 is provided in 5 internal projection 51 of dirt-proof boot
Slot.
On the other hand, the utility model also provides a kind of generating set test testing stand, including testing stand dragging system,
It further include the above-mentioned universal coupling with spider with overload protection, right cross axle 20 ' is used to drag with the testing stand
System connection.
When the utility model is used, it can be installed between tide energy or wind power generating set and testing stand dragging system,
Transfer panel is driven chain link, fastening by the whole circle bolt and generating set of outer ring, transfer panel can be according to maximum megawatt rank
Design, can use one or two shaft couplings by different megawatt generation machine group platform spare interfaces from the interface of set drive chain
Device covers the test demand of all units of some company；Limiter of moment have need to peak torque, transmitting is required when use
Peak torque, which is less than, need to use torque, and limiter of moment need to use the adjustable size of torque, be adjusted according to actual needs using preceding
The peak torque that limiter of moment allows to transmit in this test, limiter of moment can also misalign in torque transmittance process
It compensates, protection is formed to overload；Can also be by adjusting the length of fit of splined shaft and spline housing, and then adjust shaft coupling
Axial length, even if making the utility model under longest working condition, it is also ensured that the minimum of inside and outside spline effectively work length
Degree, it is ensured that shaft coupling torsion pass reliability；And on the one hand the design of dirt-proof boot reduces dust or steam etc. and enters spline working interface,
And the extreme length of shaft coupling is limited by the cooperation of internal projection and outer lug；Sealing ring be vulnerable part can also in time into
Row replacement.
The utility model not only forms overload and electrical insulation is protected by using the limiter of moment with insulation protection
Shield, and overload occurs without shutdown or replacement components；Also by the different designs of transfer panel, realize that a shaft coupling exists
Different capacity grade is used interchangeably, and not only realizes being used interchangeably between different capacity grade, but also inside and outside by increasing and decreasing
Spline fitted length realizes the flexible of axial length；By the Seal Design between dirt-proof boot and spline housing, connection is effectively extended
The service life of axis device has expanded the scope of application of shaft coupling to the greatest extent.The utility model has the advantages of convenient installation, easy to operate,
Long service life；It is full-featured to be protected, it can be achieved that overloading with electrical insulation；Use scope is wide, and a shaft coupling may be implemented
Use under the more places of multi-state.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation, those skilled in the art make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above,
It falls within the protection scope of the present utility model.
Claims (10)
1. a kind of universal coupling with spider with overload protection including splined shaft and is connected to the splined shaft both ends
Left and right universal-joint fork, it is corresponding, it is connected separately with left and right cross axle on the outside of the left and right universal-joint fork, the splined shaft,
Left and right universal-joint fork and left and right cross axle are axial connection, which is characterized in that wherein, the left universal-joint fork and splined shaft it
Between be connected with limiter of moment；
It is connected with transfer panel on the outside of the left cross axle, is provided on the outside of the transfer panel for connecting with generating set transmission chain
The spare interface connect.
2. the universal coupling with spider according to claim 1 with overload protection, which is characterized in that described reserved
Interface includes the different multi-turn interface of internal diameter, be respectively used to from different MW class other generating set transmission chain link, described turn
It connects disk and chain link is driven by bolt and generating set.
3. the universal coupling with spider according to claim 1 with overload protection, which is characterized in that the cross
Axis includes cross shaft body and the flanged structure for being connected to cross axle outer body, is provided with end face on the inside of the transfer panel
The flanged structure of tooth, the end-tooth and the left cross axle is bolted.
4. the universal coupling with spider according to claim 1 with overload protection, which is characterized in that the torque
The outer ring of limiter is connect with left universal-joint fork, the inner ring and spline axis connection of the limiter of moment；The limiter of moment
Insulation protection device is additionally provided between inner and outer rings.
5. the universal coupling with spider according to any one of claims 1 to 4 with overload protection, which is characterized in that
The periphery of the splined shaft is equipped with spline housing, and right universal-joint fork is fixedly connected with one end of the spline housing, the spline housing with
Splined shaft can relatively move.
6. the universal coupling with spider according to claim 5 with overload protection, which is characterized in that the spline
The periphery of set is provided with dirt-proof boot, and one end of the dirt-proof boot is fixedly connected on the splined shaft close to the limiter of moment
The removable connection in the outside of side, the other end of the dirt-proof boot and the spline housing.
7. the universal coupling with spider according to claim 6 with overload protection, which is characterized in that the spline
It covers splined shaft side is being provided with outside outer lug, the dirt-proof boot is correspondingly arranged on towards axle center and the outer lug
Cooperate the internal projection of limit, the dirt-proof boot forms the journey stop gear of the spline housing.
8. the universal coupling with spider according to claim 7 with overload protection, which is characterized in that described dust-proof
Set and the spline housing move junction and are provided with sealing ring.
9. the universal coupling with spider according to claim 8 with overload protection, which is characterized in that described dust-proof
The card slot for installing the sealing ring is provided in set internal projection.
10. a kind of generating set test testing stand, including testing stand dragging system, which is characterized in that further include claim
The described in any item universal coupling with spider with overload protection of 1-9, the right cross axle are used for and the testing stand
Dragging system connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820445261.8U CN208281391U (en) | 2018-03-30 | 2018-03-30 | Universal coupling with spider and its test testing stand with overload protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820445261.8U CN208281391U (en) | 2018-03-30 | 2018-03-30 | Universal coupling with spider and its test testing stand with overload protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208281391U true CN208281391U (en) | 2018-12-25 |
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ID=64750311
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820445261.8U Active CN208281391U (en) | 2018-03-30 | 2018-03-30 | Universal coupling with spider and its test testing stand with overload protection |
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| Country | Link |
|---|---|
| CN (1) | CN208281391U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571527A (en) * | 2018-03-30 | 2018-09-25 | 国电联合动力技术有限公司 | Universal coupling with spider with overload protection and its test testing stand |
-
2018
- 2018-03-30 CN CN201820445261.8U patent/CN208281391U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571527A (en) * | 2018-03-30 | 2018-09-25 | 国电联合动力技术有限公司 | Universal coupling with spider with overload protection and its test testing stand |
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