CN209569273U - Float positioning device, the transmission system comprising the device and machine - Google Patents
Float positioning device, the transmission system comprising the device and machine Download PDFInfo
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- CN209569273U CN209569273U CN201920129945.1U CN201920129945U CN209569273U CN 209569273 U CN209569273 U CN 209569273U CN 201920129945 U CN201920129945 U CN 201920129945U CN 209569273 U CN209569273 U CN 209569273U
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- spline housing
- positioning device
- input shaft
- hydraulic pump
- power output
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Abstract
The utility model relates to float positioning device, the transmission system comprising the device and machines.Float positioning device includes: the power output shaft (1) connecting with engine output end；Hydraulic pump including input shaft (2)；And the spline housing (3) of the input shaft (2) for connecting power output shaft (1) and hydraulic pump, wherein, the one end of spline housing (3) connecting with the input shaft (2) of hydraulic pump is provided with butterfly spring (4), the end face that the outer diameter of the butterfly spring (4) is big is pressed on the end face of spline housing (3), and the end face that the outer diameter of the butterfly spring (4) is small is stuck on the input shaft (2) of hydraulic pump.The transmission system and machine of the utility model include above-mentioned float positioning device.Float positioning device can utilize simple structure prevent such as land leveller machine the spline housing for axis and axis connection excessive axial motion, and then extend the service life of original part and stable behavior in service be provided.
Description
Technical field
The utility model relates to a kind of float positioning devices.The utility model is further related to comprising this float positioning device
Transmission system and machine.
Background technique
With the development of economy and modern project science and technology, the construction machines such as land leveller, loading machine are widely used in society
In meeting production and construction.Engine, the gearbox connecting with the output end of engine and and speed change are generally comprised in these machines
The hydraulic pump etc. of case connection, to realize that the every of operator is intended to.
In general, the power input of hydraulic pump needs to be attached by spline housing, by power in some construction machines
Pass to hydraulic pump.When power output shaft and hydraulic pump rotate synchronously, since there are gaps to cause certain for spline fitted
Internal spline, external splines can move axially under the action of power, especially when axial string momentum is excessive, easily cause splined shaft, power
The abrasion of output shaft or the spline of pump input shaft reduces original part service life, the more serious damage that will cause high added value original part.
Hence it is highly desirable to provide a kind of simple float positioning device of the structure for preventing spline housing axial motion.
Utility model content
The utility model provides a kind of float positioning device, can prevent such as land leveller using simple structure
The excessive axial motion for axis and the spline housing of axis connection of machine, and then extend the service life of original part and provide stable
Behavior in service.
One aspect according to the present utility model, provides a kind of float positioning device, the float positioning device include: with
The power output shaft of engine output end connection；Hydraulic pump including input shaft；And for connect power output shaft with it is hydraulic
The spline housing of the input shaft of pump, wherein spline housing and one end of the input axis connection of hydraulic pump are provided with butterfly spring, institute
The big end face of outer diameter for stating butterfly spring is pressed on the end face of spline housing, and the small end face of the outer diameter of the butterfly spring is stuck in hydraulic
On the input shaft of pump.
According to a kind of embodiment, power output shaft is connected by the cooperation of power output shaft external splines and spline housing internal spline
It is connected together, the input shaft of hydraulic pump is cooperated together by input shaft external splines and spline housing internal spline, is thus spent
Key set plays the role of connecting the input shaft of power output shaft and hydraulic pump.
According to a kind of embodiment, the big end face of the outer diameter of butterfly spring is pressed on the end face of spline housing, butterfly spring
The small end face of outer diameter is stuck in the annular groove on the input shaft of hydraulic pump, and thus butterfly spring is played to butterfly spring axial direction
The effect of limit.
According to another embodiment, the end face that the outer diameter of butterfly spring is big is pressed on the end face of spline housing, butterfly spring
The small end face of outer diameter abut the annular convex platform on the input shaft of hydraulic pump, thus butterfly spring is played to butterfly spring axial direction
The effect of limit.
According to a kind of embodiment, spline housing compresses on power output shaft with the end face of power output axis connection one end
Annular convex platform is pressed on the end face with input axis connection one end of hydraulic pump of spline housing, spline housing from there through butterfly spring
Can compress the annular convex platform on power output shaft with the end face of power output axis connection one end.
According to a kind of embodiment, it is provided in one end of spline housing and the input axis connection of hydraulic pump concatenated multiple
Butterfly spring.
Other side according to the present utility model provides a kind of transmission system comprising foregoing positioning of floating
Device.
Another aspect according to the present utility model provides a kind of machine comprising transmission system, the transmission system packet
Include foregoing float positioning device.
According to a kind of embodiment, the machine is land leveller or loading machine.
The advantageous effects of the utility model are: when power output shaft and pump input shaft rotate synchronously, passing through utilization
Butterfly spring carries out axial limiting to the spline housing for connecting power output shaft and pump input shaft, and butterfly spring is by axial force
Effect, when the axial motion of spline housing is excessive, butterfly spring relies on itself deformation, generates certain elastic force to prevent
The excessive axial motion of spline housing, the deflection of butterfly spring is smaller, and the string quantity of motion of spline housing is also by very little, to prevent original part
Abrasion, promotes the service life of original part, while making the operating of transmission system more stable.
Detailed description of the invention
Fig. 1 is include a kind of transmission system of the float positioning device of preferred embodiment according to the present utility model one
Partial structural schematic diagram.
Fig. 2 is the transmission system of the float positioning device comprising another preferred embodiment according to the present utility model
The structural schematic diagram of a part.
In figure:
1 power output shaft
The input shaft of 2 hydraulic pumps
3 spline housings
The first end of 3a spline housing
The second end of 3b spline housing
4 butterfly springs
The first end of 4a butterfly spring
The second end of 4b butterfly spring
5 annular grooves
6 annular convex platform
7 annular convex platform
Specific embodiment
Describe the embodiments of the present invention in detail with reference to the accompanying drawings.Wherein, directional terminology described in the text, it is all
It is for drawing such as " left side ", " right side ".
Fig. 1 is include a kind of transmission system of the float positioning device of preferred embodiment according to the present utility model one
Partial structural schematic diagram.Transmission system generally comprises the power output shaft 1 including input shaft connecting with engine output end
2 hydraulic pump, spline housing 3 of input shaft 2 for connecting power output shaft 1 and hydraulic pump etc. (only show portions in Fig. 1
Part).Power output shaft 1 is cooperated together by power output shaft external splines and spline housing internal spline, hydraulic pump it is defeated
Enter the cooperating together by input shaft external splines and spline housing internal spline of axis 2.The rotation of power output shaft 1 drives flower
The rotation of key set 3, and the rotation of spline housing 3, and drive the rotation of the input shaft 2 of hydraulic pump.In power output shaft 1 via spline
When set 3 drives the input shaft 2 of hydraulic pumps to rotate synchronously, between power output shaft 1 and spline housing 3 and the input shaft 2 of hydraulic pump
Spline between spline housing 3 may axial motion, small vibration is little to the damage of spline, but when the axial string of spline
When momentum is excessive, spline wear will cause, and then reduce the service life of original part.The axial motion of spline in order to prevent guarantees
The stability of transmission system and the service life for extending original part, are provided with for preventing spline housing axial motion in transmission system
Float positioning device.
With continued reference to preferred embodiment shown in FIG. 1, spline housing 3 has first end 3a (left-hand end in figure) to receive
At least part and second end 3b (right-hand end in figure) of power output shaft 1 are to receive at least the one of the input shaft 2 of hydraulic pump
Part.The first end 3a of spline housing 3 is equipped with internal spline, and at least part of power output shaft 1 is equipped with external splines, spline housing 3
The external splines of the internal spline of first end 3a and power output shaft 1 cooperates and links together.The second end 3b of spline housing 3 is equipped with interior
At least part of spline, the input shaft 2 of hydraulic pump is equipped with external splines, the internal spline and hydraulic pump of the second end 3b of spline housing 3
Input shaft 2 external splines cooperation and link together.Float positioning device includes the butterfly that the second end 3b of spline housing 3 is arranged in
Shape spring 4, naturally it is also possible to which concatenated multiple butterfly springs are set.The first end 4a (left-hand end in figure) of butterfly spring 4 is outer
The big one end of diameter, is pressed on the second end 3b of spline housing 3, and the second end 4b (right-hand end in figure) of butterfly spring 4 is that outer diameter is small
One end, be stuck in the annular groove 5 on the input shaft 2 of hydraulic pump.The first end 3a of spline housing 3 abuts power output shaft 1
On annular convex platform 7, be pressed on the second end 3b of spline housing 3 by butterfly spring 4, the first end 3a of spline housing 3 is necessarily compressed
Annular convex platform 7 on power output shaft 1, is achieved in the axial limiting of spline housing 3.In the normal operation of transmission system
In, that is, when power output shaft 1 drives the input shaft 2 of hydraulic pump to rotate synchronously via spline housing 3, when axial direction occurs in spline housing 3
Vibration trend, butterfly spring 4 can rely on itself deformation, generate certain elastic force to prevent the excessive vibration of spline housing 3,
String quantity of motion is small, and with regard to small, the service life of original part is accordingly promoted the abrasion loss of spline.
Fig. 2 is the transmission system of the float positioning device comprising another preferred embodiment according to the present utility model
The structural schematic diagram of a part.Unlike float positioning device shown in Fig. 1, outside butterfly spring shown in Fig. 2
The big end face of diameter is pressed on the end face of spline housing, and the small end face of the outer diameter of butterfly spring abuts the annular on the input shaft of hydraulic pump
Boss 6.Another side end face opposite with a side end face of butterfly spring is pressed with of spline housing abuts the annular on power output shaft
Boss is pressed on a side end face for spline housing by butterfly spring, and it is defeated that another side end face of spline housing necessarily compresses power
Annular convex platform on shaft is achieved in the axial limiting of spline housing.
In addition, according to a kind of embodiment, in addition to being provided in spline housing and one end of the input axis connection of hydraulic pump
Except butterfly spring, equally spline housing and one end of power output axis connection can be provided with butterfly spring, setting side
Formula can be identical or different with the set-up mode of butterfly spring described in above-mentioned preferred embodiment, is achieved in spline housing
Axial limiting and the axial motion for preventing spline excessive.
In addition, according to a kind of embodiment, substitution uses spline housing, can be used splined shaft, power output shaft with it is hydraulic
The input shaft of pump can be equipped with and axially receive hole, be respectively used to receive the first end and second end of splined shaft, to utilize flower
The input shaft of key axis connection power output shaft and hydraulic pump.In this embodiment, power output shaft passes through in power output shaft
Spline and splined shaft external splines cooperate together, and the input shaft of hydraulic pump passes through flower outside input shaft internal spline and spline housing
Key cooperates together.In the input shaft of hydraulic pump, the endface of splined shaft is provided with butterfly spring, butterfly spring
The big end face of outer diameter be pressed on the end face of splined shaft, the end face that the outer diameter of butterfly spring is small is stuck in the input shaft of hydraulic pump
In annular groove or end face that the outer diameter of butterfly spring is small abuts the annular convex platform in the input shaft of hydraulic pump.Meanwhile spline
Axis abuts the annular convex platform in power output shaft with the end face of power output axis connection one end, or can splined shaft with
One end of power output axis connection is also provided with butterfly spring, to realize the axial limiting of splined shaft.In the normal of transmission system
In operation process, that is, when power output shaft drives the input shaft of hydraulic pump to rotate synchronously via splined shaft, when splined shaft occurs
Axial motion trend, butterfly spring can rely on the deformation of itself, generate certain elastic force to prevent the excessive string of splined shaft
Dynamic, string quantity of motion is small, and with regard to small, the service life of original part is accordingly promoted the abrasion loss of spline.
Other kinds of spring can be used it is contemplated that substitution butterfly spring in those of ordinary skill in the art, as long as its
It is able to bear the either statically or dynamically load along axial action, by the deformation of itself, generates certain elastic force to prevent spline
The excessive axial motion of set or splined shaft.
The utility model further relates to the machine comprising the transmission system with the float positioning device, such as land leveller, dress
Carrier aircraft etc..
Industrial applicibility
Float positioning device according to the present utility model can be used for including in the various construction machines of transmission system, such as
Land leveller, loading machine etc. can realize excellent positioning performance using simple structure, to prevent the excessive axial direction of spline
Vibration, while the fatigue life etc. of its axis for being able to extend gearbox, it is possible thereby to reduce cost.
It, only need to be in the transmission system of the utility model for connecting power output shaft and pump in manufacture, process
The damping piece of at least one end setting such as butterfly spring of the spline housing or splined shaft of axis, makes one end of the damping piece compress spline
Set or splined shaft, the other end are stuck in the annular groove on pump shaft Nei or abut the annular projection on pump shaft, realization to spline housing or
The axial limiting of splined shaft.In the normal operation of transmission system, even if spline housing or splined shaft go out during rotation
Existing axial motion, damping piece rely on the deformation of itself, generate certain elastic force to prevent the excessive string of spline housing or splined shaft
It is dynamic, so that it is guaranteed that the service life of original part.
Specific embodiment of the present utility model is illustrated above with reference to attached drawing, but these explanations should not be construed as
Limitation to scope of protection of the utility model.Those skilled in the art's introduction according to the present utility model is to above-mentioned specific embodiment party
The improvement or modification that formula is made, fall into the protection scope of the utility model.
Claims (10)
1. a kind of float positioning device comprising:
The power output shaft (1) being connect with engine output end；
Hydraulic pump including input shaft (2)；And
For connecting the spline housing (3) of the input shaft (2) of power output shaft (1) and hydraulic pump,
It is characterized in that, one end connecting with the input shaft (2) of hydraulic pump in spline housing (3) is provided with butterfly spring (4), institute
The big end face of outer diameter for stating butterfly spring (4) is pressed on the end face of spline housing (3), the small end of the outer diameter of the butterfly spring (4)
Face is stuck on the input shaft (2) of hydraulic pump.
2. float positioning device as described in claim 1, which is characterized in that power output shaft (1) passes through outside power output shaft
Spline and spline housing internal spline cooperate together, and the input shaft (2) of hydraulic pump passes through input shaft external splines and spline housing
Internal spline cooperates together.
3. float positioning device as described in claim 1, which is characterized in that the small end face of the outer diameter of the butterfly spring (4)
It is stuck in the annular groove (5) on the input shaft (2) of hydraulic pump Nei.
4. float positioning device as described in claim 1, which is characterized in that the small end face of the outer diameter of the butterfly spring (4)
Abut the annular convex platform (6) on the input shaft (2) of hydraulic pump.
5. float positioning device according to any one of claims 1 to 4, which is characterized in that the spline housing (3) with it is dynamic
The end face of power output shaft (1) connection one end compresses the annular convex platform (7) on power output shaft (1).
6. float positioning device according to any one of claims 1 to 4, which is characterized in that spline housing (3) and power
One end of output shaft (1) connection is provided with butterfly spring.
7. float positioning device according to any one of claims 1 to 4, which is characterized in that spline housing (3) with it is hydraulic
One end of input shaft (2) connection of pump is provided with concatenated multiple butterfly springs.
8. a kind of transmission system, which is characterized in that the transmission system includes such as floating of any of claims 1-7
Positioning device.
9. a kind of machine, which is characterized in that the machine includes transmission system, and the transmission system includes such as claim 1-7
Any one of described in float positioning device.
10. machine as claimed in claim 9, which is characterized in that the machine is land leveller or loading machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920129945.1U CN209569273U (en) | 2019-01-25 | 2019-01-25 | Float positioning device, the transmission system comprising the device and machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920129945.1U CN209569273U (en) | 2019-01-25 | 2019-01-25 | Float positioning device, the transmission system comprising the device and machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209569273U true CN209569273U (en) | 2019-11-01 |
Family
ID=68332862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920129945.1U Active CN209569273U (en) | 2019-01-25 | 2019-01-25 | Float positioning device, the transmission system comprising the device and machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209569273U (en) |
-
2019
- 2019-01-25 CN CN201920129945.1U patent/CN209569273U/en active Active
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