CN205858817U - Hoistable platform and fluid power system thereof - Google Patents
Hoistable platform and fluid power system thereof Download PDFInfo
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- CN205858817U CN205858817U CN201620854710.5U CN201620854710U CN205858817U CN 205858817 U CN205858817 U CN 205858817U CN 201620854710 U CN201620854710 U CN 201620854710U CN 205858817 U CN205858817 U CN 205858817U
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- damping
- oil
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- way
- fluid power
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- 239000012530 fluid Substances 0.000 title claims abstract description 42
- 238000013016 damping Methods 0.000 claims abstract description 75
- 239000003921 oil Substances 0.000 claims abstract description 41
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 21
- 239000000446 fuel Substances 0.000 claims abstract description 10
- 239000002828 fuel tank Substances 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000003028 elevating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- -1 braking release Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses the fluid power system of a kind of hoistable platform, including brake and motor, also include damping reversing arrangement, described motor is by described damping reversing arrangement connection oil pump and fuel tank, described damping reversing arrangement can control the flow direction of hydraulic oil in described motor, and hinders the flowing of hydraulic oil in described motor after fuel cut-off.When needing braking, while by brake, stopping the flowing of hydraulic oil in motor fuel feeding, obstruction motor, increase motor return oil pressure, slow down motor rotary speed, coordinates brake, it is possible to shortens braking distance and improves stability and comfort level.The invention also discloses a kind of hoistable platform including above-mentioned fluid power system.
Description
Technical field
This utility model relates to hoistable platform field, particularly relates to the fluid power system of a kind of hoistable platform.Additionally,
This utility model further relates to a kind of hoistable platform including above-mentioned fluid power system.
Background technology
Hoistable platform is widely used in multiple field, generally comprises underframe, work platforms and fluid power system.Pass through
Drive revolution, and then drive car load to advance, be currently the purpose being reached car braking by brake, rely on spring compression
Friction disc brake, thus reach vehicle and stop the purpose of walking.In existing fluid power system, control system by hydraulic oil
Dynamic device, when the oil-in of brake has pressure oil, braking release, vehicle can be walked, when stopping supply pressure oil, braking
Device relies on the effect of self spring, and vehicle starts braking.
In order to ensure the stability of product, protect staff's life security, prevent poor stop, it is desirable to the greatest extent
Amount shortens braking distance, but existing hoistable platform braking distance is longer, and safety is the highest；If by strengthening brake
Braking moment shortens braking distance, and hoistable platform can produce bigger impact, reduces stability and comfort level.
Therefore, how to provide a kind of to shorten braking distance and improve the fluid power system of stability and comfort level and be
Those skilled in the art are presently required and solve the technical problem that.
Utility model content
The purpose of this utility model is to provide the fluid power system of a kind of hoistable platform, it is possible to shortens braking distance and carries
High stability and comfort level.Another object of the present utility model is to provide a kind of lifting including above-mentioned fluid power system and puts down
Platform, it is possible to shorten braking distance and improve stability and comfort level.
For solving above-mentioned technical problem, this utility model provides the fluid power system of a kind of hoistable platform, including braking
Device and motor, also include damping reversing arrangement, and described motor is by described damping reversing arrangement connection oil pump and fuel tank, described resistance
Buddhist nun's reversing arrangement can control the flow direction of hydraulic oil in described motor, and hinders hydraulic pressure in described motor after fuel cut-off
The flowing of oil.
Preferably, described damping reversing arrangement specially damps reversal valve.
Preferably, described damping reversal valve is specially 3-position 4-way damping reversal valve, described 3-position 4-way damping reversal valve
Two actuator ports be respectively communicated with two actuator ports of described motor, described 3-position 4-way damping reversal valve is in middle position
Time, it is provided with damping in two working oil chamber, and its oil-in, oil return opening and two actuator ports all turn on.
Preferably, described damping reversing arrangement includes reversal valve and the damping reversal valve being sequentially communicated.
Preferably, described reversal valve is specially three position four-way directional control valve, and described damping reversal valve is specially two-position four-way resistance
Buddhist nun's reversal valve；
Two actuator ports of described two-position four-way damping reversal valve are respectively communicated with two actuator ports of described motor, institute
State the two-position four-way damping oil-in of reversal valve and oil return opening is respectively communicated with two actuator ports of described three position four-way directional control valve；
When described three position four-way directional control valve is in middle position, its oil-in, oil return opening and two actuator ports all turn on；
When described two-position four-way damping reversal valve is in a working position, its oil-in and an actuator port are normally led
Logical, its oil return opening and another actuator port normally, when described two-position four-way damping reversal valve is in another working position,
Its oil-in and an actuator port are turned on by damping, and its oil return opening and another actuator port are turned on by damping.
Preferably, including two the described motors connecting described damping reversing arrangement simultaneously.
Preferably, the series-parallel conversion valve simultaneously connecting described damping reversing arrangement and two described motors is also included.
Preferably, described series-parallel conversion valve is specially two-position four way change valve, and described two-position four way change valve is in one
During individual working position, its oil-in and an actuator port normally, its oil return opening and another actuator port normally；Institute
State two-position four way change valve when being in another working position, an only actuator port conducting oil-in or oil return opening.
This utility model also provides for a kind of hoistable platform, including fuselage and the fluid power system that connects described fuselage,
Described fluid power system is specially the fluid power system described in above-mentioned any one.
Preferably, described hoistable platform is specially scissor-type lifting platform.
This utility model provides a kind of fluid power system, including brake and motor, also includes damping reversing arrangement,
Described motor is by described damping reversing arrangement connection oil pump and fuel tank, and described damping reversing arrangement can control in described motor
The flow direction of hydraulic oil, and after fuel cut-off, hinder the flowing of hydraulic oil in described motor.In the mistake that hoistable platform is exercised
Cheng Zhong, by damping reversing arrangement control hydraulic oil flow to, and then control hoistable platform run direction.When needing braking,
While brake, stop the flowing of hydraulic oil in motor fuel feeding, obstruction motor, increase motor return oil pressure,
Slow down motor rotary speed, coordinates brake, it is possible to shortens braking distance and improves stability and comfort level.
This utility model also provides for a kind of hoistable platform including above-mentioned fluid power system, due to above-mentioned hydraulic-driven system
System has above-mentioned technique effect, and above-mentioned hoistable platform also should have same technique effect, is no longer discussed in detail at this.
Accompanying drawing explanation
Fig. 1 is the hydraulic schematic diagram of the first detailed description of the invention of fluid power system provided by the utility model；
Fig. 2 is the hydraulic schematic diagram of the second detailed description of the invention of fluid power system provided by the utility model；
Fig. 3 is the hydraulic schematic diagram of the third detailed description of the invention of fluid power system provided by the utility model；
Fig. 4 is the hydraulic schematic diagram of the 4th kind of detailed description of the invention of fluid power system provided by the utility model.
Detailed description of the invention
Core of the present utility model is to provide the fluid power system of a kind of hoistable platform, it is possible to shortens braking distance and carries
High stability and comfort level.Another core of the present utility model is to provide a kind of lifting including above-mentioned fluid power system and puts down
Platform, it is possible to shorten braking distance and improve stability and comfort level.
In order to make those skilled in the art be more fully understood that this utility model scheme, below in conjunction with the accompanying drawings and be embodied as
The utility model is described in further detail for mode.
The fluid power system that this utility model detailed description of the invention provides, including brake 1 and motor 2, also includes resistance
Buddhist nun's reversing arrangement, motor 2 can control liquid in motor 2 by damping reversing arrangement connection oil pump and fuel tank, damping reversing arrangement
The flow direction of force feed, and the flowing of hydraulic oil in obstruction motor 2 after fuel cut-off.During hoistable platform is exercised,
By damping reversing arrangement control hydraulic oil flow to, and then control hoistable platform run direction.When needing braking, by system
While dynamic device 1 braking, stop the flowing of hydraulic oil in motor 2 fuel feeding, obstruction motor 2, increase horse 2 and reach return oil pressure, subtract
Slow motor 2 rotating speed, coordinates brake 1 to brake, it is possible to shorten braking distance and improve stability and comfort level.
Wherein damping reversing arrangement can be damping reversal valve, and specially 3-position 4-way damping reversal valve 3, refer to Fig. 1,
Fig. 1 is the hydraulic schematic diagram of the first detailed description of the invention of fluid power system provided by the utility model.
Two actuator ports of 3-position 4-way damping reversal valve 3 are respectively communicated with two actuator ports of motor 2,3-position 4-way
When damping reversal valve 3 is in middle position, in two working oil chamber, it is provided with damping, and its oil-in, oil return opening and two works
All turn on as hydraulic fluid port.Being the 3-position 4-way damping reversal valve 3 of position in H type, when hoistable platform normally travels, 3-position 4-way hinders
Two, the left and right of Buddhist nun's reversal valve 3 working position is connected into oil circuit, and is realized the switching of the direction of motion by the switching of the two working position.
When needs are braked, while brake 1 is braked, 3-position 4-way damping reversal valve 3 is in middle position, fuel cut-off, pumps out
Hydraulic oil directly flows back to fuel tank.In motor 2, the hydraulic oil of residual still may proceed to flowing under the effect of inertia, flows to middle position
Time, due to the effect of damping, the flowing of hydraulic oil can be slowed down, increase motor 2 return oil pressure, and then coordinate brake 1 to brake.
Damping reversing arrangement can also include reversal valve and the damping reversal valve being sequentially communicated, and specifically, reversal valve is three
Position and four-way reversing valve 4, damping reversal valve is that two-position four-way damps reversal valve 5.Refer to Fig. 2, Fig. 2 provided by this utility model
The hydraulic schematic diagram of the second detailed description of the invention of fluid power system.
Two actuator ports of two-position four-way damping reversal valve 5 are respectively communicated with two actuator ports of motor 2, two-position four-way
The oil-in of damping reversal valve 5 and oil return opening are respectively communicated with two actuator ports of three position four-way directional control valve 4；3-position 4-way commutates
When valve 4 is in middle position, its oil-in, oil return opening and two actuator ports all turn on；Two-position four-way damping reversal valve 5 is in row
When making working position, its oil-in and an actuator port normally, its oil return opening and another actuator port normally, two
When position four-way damping reversal valve 5 is in braking operation position, its oil-in and an actuator port are turned on by damping, its oil return opening
Turned on by damping with another actuator port.
When hoistable platform normally travels, two-position four-way damping reversal valve 5 is in enforcement working position, hydraulic oil proper flow,
Two, the left and right of three position four-way directional control valve 4 working position is connected into oil circuit, and realizes the direction of motion by the switching of the two working position
Switching.When needs are braked, while brake 1 is braked, two-position four-way damping reversal valve 5 is in braking operation position, and three
Position and four-way reversing valve 4 is in middle position, fuel cut-off, and the hydraulic oil pumped out directly flows back to fuel tank.In motor 2, the hydraulic oil of residual exists
Flowing is still may proceed to, when flowing to the braking operation position of two-position four-way damping reversal valve 5, due to the work of damping under the effect of inertia
With, the flowing of hydraulic oil can be slowed down, increase motor 2 return oil pressure, and then coordinate brake 1 to brake.
Certainly may be used without the reversal valve of other models, and increase the parts such as overflow valve and check valve, all new in this practicality
Within the protection domain of type.
On the basis of the fluid power system that above-mentioned each detailed description of the invention provides, all connection damping commutation dresses can be set
Two motors 2 put.Refer to Fig. 3 and Fig. 4, Fig. 3 is that the third of fluid power system provided by the utility model is concrete
The hydraulic schematic diagram of embodiment；Fig. 4 is the 4th kind of detailed description of the invention of fluid power system provided by the utility model
Hydraulic schematic diagram.
Connection damping reversing arrangement and the series-parallel conversion valve 6 of two motors 2 simultaneously can also be set, for switching two
The connected mode of motor 2, specifically, can be two-position four way change valve, when two-position four way change valve is in a working position, its
Oil-in and an actuator port normally, its oil return opening and another actuator port normally；Two-position four way change valve
When being in another working position, an only actuator port conducting oil-in or oil return opening.And by the design of oil circuit, it is achieved root
Switching two motor 2 serial or parallel connections according to needs, during series connection, one actuator port of three position four-way directional control valve connects the first motor
An actuator port, another actuator port of the first motor connects an actuator port of the second motor, the second motor
Another actuator port of another actuator port connection three position four-way directional control valve.Time in parallel, a working oil of the first motor
One actuator port of mouth connection three position four-way directional control valve, another actuator port connection three position four-way directional control valve of the first motor
Another actuator port, an actuator port of actuator port connection three position four-way directional control valve of the second motor, second
Another actuator port of another actuator port connection three position four-way directional control valve of motor.
Except above-mentioned fluid power system, detailed description of the invention of the present utility model also provides for one and includes that above-mentioned hydraulic pressure drives
The hoistable platform of dynamic system, the structure of these other each several parts of hoistable platform refer to prior art, repeats no more herein.
Specifically, above-mentioned hoistable platform can be scissor-type lifting platform.
Above hoistable platform provided by the utility model and fluid power system thereof are described in detail.Herein
Applying specific case to be set forth principle of the present utility model and embodiment, the explanation of above example is only intended to
Help to understand method of the present utility model and core concept thereof.It should be pointed out that, those skilled in the art are come
Saying, on the premise of without departing from this utility model principle, it is also possible to this utility model is carried out some improvement and modification, these change
Enter and modification also falls in this utility model scope of the claims.
Claims (10)
1. a fluid power system for hoistable platform, including brake (1) and motor (2), it is characterised in that also include damping
Reversing arrangement, described motor (2) is by described damping reversing arrangement connection oil pump and fuel tank, and described damping reversing arrangement can be controlled
Make the flow direction of described motor (2) interior hydraulic oil, and after fuel cut-off, hinder the flowing of hydraulic oil in described motor (2).
Fluid power system the most according to claim 1, it is characterised in that described damping reversing arrangement specially damping is changed
To valve.
Fluid power system the most according to claim 2, it is characterised in that described damping reversal valve is specially 3-position 4-way
Damping reversal valve (3), two actuator ports of described 3-position 4-way damping reversal valve (3) are respectively communicated with the two of described motor (2)
Individual actuator port, when described 3-position 4-way damping reversal valve (3) is in middle position, is provided with damping in two working oil chamber,
And its oil-in, oil return opening and two actuator ports all turn on.
Fluid power system the most according to claim 1, it is characterised in that described damping reversing arrangement includes being sequentially communicated
Reversal valve and damping reversal valve.
Fluid power system the most according to claim 4, it is characterised in that described reversal valve is specially 3-position 4-way commutation
Valve (4), described damping reversal valve is specially two-position four-way damping reversal valve (5)；
Two actuator ports of described two-position four-way damping reversal valve (5) are respectively communicated with two actuator ports of described motor (2),
The oil-in of described two-position four-way damping reversal valve (5) and oil return opening are respectively communicated with two of described three position four-way directional control valve (4)
Actuator port；
When described three position four-way directional control valve (4) is in middle position, its oil-in, oil return opening and two actuator ports all turn on；
When described two-position four-way damping reversal valve (5) is in a working position, its oil-in and an actuator port normally,
Its oil return opening and another actuator port normally, when described two-position four-way damping reversal valve (5) is in another working position,
Its oil-in and an actuator port are turned on by damping, and its oil return opening and another actuator port are turned on by damping.
6. according to the fluid power system described in claim 1 to 5 any one, it is characterised in that include connecting described simultaneously
Two described motors (2) of damping reversing arrangement.
Fluid power system the most according to claim 6, it is characterised in that also include simultaneously connecting described damping commutation dress
Put the series-parallel conversion valve (6) with two described motors (2).
Fluid power system the most according to claim 7, it is characterised in that described series-parallel conversion valve (6) is specially two
Position and four-way reversing valve, when described two-position four way change valve is in a working position, its oil-in and an actuator port are normally led
Logical, its oil return opening and another actuator port normally；When described two-position four way change valve is in another working position, only have
One actuator port conducting oil-in or oil return opening.
9. a hoistable platform, including fuselage and the fluid power system that connects described fuselage, it is characterised in that described hydraulic pressure
Drive system is specially the fluid power system described in claim 1 to 8 any one.
Hoistable platform the most according to claim 9, it is characterised in that described hoistable platform is specially scissors type elevating and puts down
Platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620854710.5U CN205858817U (en) | 2016-08-08 | 2016-08-08 | Hoistable platform and fluid power system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620854710.5U CN205858817U (en) | 2016-08-08 | 2016-08-08 | Hoistable platform and fluid power system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205858817U true CN205858817U (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620854710.5U Active CN205858817U (en) | 2016-08-08 | 2016-08-08 | Hoistable platform and fluid power system thereof |
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| Country | Link |
|---|---|
| CN (1) | CN205858817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050769A (en) * | 2016-08-08 | 2016-10-26 | 湖南星邦重工有限公司 | Lifting platform and hydraulic driving system thereof |
-
2016
- 2016-08-08 CN CN201620854710.5U patent/CN205858817U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050769A (en) * | 2016-08-08 | 2016-10-26 | 湖南星邦重工有限公司 | Lifting platform and hydraulic driving system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 410600, 128, Jinzhou Avenue East, Jinzhou new district, Changsha, Hunan, Ningxiang Patentee after: Hunan Xingbang Intelligent Equipment Co., Ltd Address before: 410600, 128, Jinzhou Avenue East, Jinzhou new district, Changsha, Hunan, Ningxiang Patentee before: Hunan Sinoboom Heavy Industry Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |