CN205527576U - Cab tilting mechanism and fork truck - Google Patents
Cab tilting mechanism and fork truck Download PDFInfo
- Publication number
- CN205527576U CN205527576U CN201620202308.9U CN201620202308U CN205527576U CN 205527576 U CN205527576 U CN 205527576U CN 201620202308 U CN201620202308 U CN 201620202308U CN 205527576 U CN205527576 U CN 205527576U
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- cab
- drivers
- oil
- hydraulic
- oil cylinder
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Abstract
The utility model relates to a cab tilting mechanism and fork truck, wherein, cab tilting mechanism includes the cab, overturn hydro -cylinder and liquid accuse device, the one side and the frame joint of cab, the upset hydro -cylinder one end articulate in the cab, the upset hydro -cylinder the other end articulate in the frame, liquid accuse device includes manual pump and switching -over valve, the manual pump is used for doing the oil feed of upset hydro -cylinder provides power, the switching -over valve is used for changing the flow direction of hydraulic oil, controls its entering upset the having the pole chamber or does not have the pole chamber of hydro -cylinder. The utility model discloses do not need engine power for public use when the upset cab, convenient to use, it is energy -conserving high -efficient, when the tail -off, but the upset of normal running cab, reducing fuel consumption, the energy can be saved.
Description
Technical field
This utility model relates to engineering machinery field, particularly relate to a kind of drivers' cab switching mechanism and
Fork truck.
Background technology
Counterbalanced forklift is also known as heavily pitching, along with the lifting of user's request, user-friendly for operation, maintenance side
Just property increasingly becomes the emphasis that user pays close attention to.For the fork truck of compact conformation, parts
Place requirement higher, be generally placed in vehicle frame including change speed gear box, Hydraulic Elements, electric wiring etc.
Portion, the bottom of drivers' cab.For the convenience keeped in repair, drivers' cab be it is also proposed new demand, as
Really drivers' cab can band turn over function, bring great convenience to the maintenance of complete machine and maintenance.
At present, the switching mechanism that there is two ways in which in industry, one is fluid pressure type, and one is mechanical type.
Hydraulic inverting mechanism is typically to be provided with hydraulic jack bottom drivers' cab, and hydraulic jack is even
Connect floor and the vehicle frame wing plate of drivers' cab, by hydraulic jack flexible realize drivers' cab upset and
Reset.When drivers' cab is turned to require position, by the rigid link of installation on wing plate by driver
Room locks, to prevent drivers' cab unexpected reset from causing security incident.
But hydraulic inverting mechanism medium power of the prior art is provided by hydraulic pump, when upset department
During unit room, need engine continuous work (or extra electric-motor pump), to be flipped complete after,
Electromotor can be closed.After maintenance completes, also need first to start electromotor, make hydraulic pump works,
So that drivers' cab returns to initial position, the most this switching mechanism necessarily has power consumption, joint
Energy property is the best.Furthermore, above-mentioned hydraulic inverting mechanism, after drivers' cab upset puts in place, by just
Property connecting rod locking fix, this mode can not arbitrarily regulate flip angle, inefficient, keep in repair people
When member keeps in repair every time, it is necessary to drivers' cab is turned to fixed position, is then fixed by rigid link,
This mode can not operate according to practical situation, inefficient.
Mechanical type switching mechanism is provided with torsion-bar spring between drivers' cab and vehicle frame, when drivers' cab not
When upset is in normal condition, store elastic force by torsion-bar spring, when needs overturn, at torsion bar
Under the resilience force effect of spring, drivers' cab overturns around gyroaxis, after upset puts in place, passes through
The locking of linkage fixes drivers' cab.Mechanical type switching mechanism can not arbitrarily regulate flip angle,
Inefficient, when maintainer keeps in repair every time, it is necessary to drivers' cab is turned to fixed position, then
Fixed by rigid link, it is impossible to operate according to practical situation, inefficient.
Utility model content
The purpose of this utility model is to propose a kind of drivers' cab switching mechanism and fork truck, and it is in upset
Engine power for public use it is not required to, it is possible to reduction oil consumption during drivers' cab, efficient energy-saving, easy to use.
For achieving the above object, this utility model provides a kind of drivers' cab switching mechanism, its bag
Including drivers' cab, overturning oil cylinder and hydraulic control unit, the side of described drivers' cab is hinged with vehicle frame, institute
The one end stating overturning oil cylinder is articulated with described drivers' cab, and the other end of described overturning oil cylinder is articulated with
Described vehicle frame, described hydraulic control unit includes manual pump and reversal valve, and described manual pump is used for as institute
The oil-feed stating overturning oil cylinder provides power, and described reversal valve, for changing the flow direction of hydraulic oil, is controlled
Make its rod chamber entering described overturning oil cylinder or rodless cavity.
One, preferably or in alternative embodiment, described reversal valve includes the first working position and the second work
Making position, at the first working position, the hydraulic oil in fuel tank can enter described by described reversal valve
The rodless cavity of overturning oil cylinder, the hydraulic oil of the rod chamber of described overturning oil cylinder can pass through described in change
To valve oil sump tank；At the second working position, the hydraulic oil in fuel tank can be entered by described reversal valve
Entering the rod chamber of described overturning oil cylinder, the hydraulic oil of the rodless cavity of described overturning oil cylinder can pass through
Described reversal valve oil sump tank.
One, preferably or in alternative embodiment, described hydraulic control unit also includes hydraulic lock, described liquid
Pressure is locked on the oil circuit between the rodless cavity of described reversal valve and described overturning oil cylinder, described hydraulic pressure
The hydraulic control end of lock connects the rod chamber of described overturning oil cylinder.
One, preferably or in alternative embodiment, described hydraulic lock includes hydraulic control one-way valve, described liquid
The oil-in of control check valve connects described reversal valve, and the oil-out of described hydraulic control one-way valve connects institute
Stating the rodless cavity of overturning oil cylinder, the hydraulic control end of described hydraulic control one-way valve connects described overturning oil cylinder
Rod chamber.
One, preferably or in alternative embodiment, described hydraulic control unit also includes choke valve, described joint
The oil circuit between described hydraulic lock and described reversal valve is located at by stream valve.
One preferably or in alternative embodiment, the oil that the oil-in of described manual pump connects with fuel tank
Road is provided with the first check valve, the oil circuit that the oil-out of described manual pump connects with described reversal valve
It is provided with the second check valve.
One, preferably or in alternative embodiment, described vehicle frame is provided with locking device, in described department
Under the non-rollover states of unit room, described locking device is for locking described drivers' cab with described vehicle frame
Fixing.
One, preferably or in alternative embodiment, described locking device includes being located at described drivers' cab
First connecting plate and be located at the second connecting plate of described vehicle frame, described first connecting plate and described the
Two connecting plates are connected by clamping screw locking.
Preferably or in alternative embodiment, described vehicle frame is additionally provided with stopping means, described limit one
Position device is for limiting the maximum flip angle of described drivers' cab.
One, preferably or in alternative embodiment, described stopping means includes being located on described drivers' cab
Arc-shaped limit plate and the stopper slot be located on described vehicle frame, be located at described arc-shaped limit board
Under the state of described stopper slot, it is possible to limit described drivers' cab and continue upset.
For achieving the above object, this utility model additionally provides a kind of fork truck, and it includes above-mentioned
Drivers' cab switching mechanism in one embodiment.
Based on technique scheme, this utility model at least has the advantages that
The drivers' cab switching mechanism that this utility model provides drives drivers' cab to overturn by overturning oil cylinder,
The oil-feed that manually pump is overturning oil cylinder provides power, is changed the stream of hydraulic oil by reversal valve
To, control hydraulic oil and enter rod chamber or the rodless cavity of overturning oil cylinder.This utility model uses hands
Dynamic pump is as power source, and being manually operated can be the oil sources required for hydraulic system provides, hands
The flow of dynamic pump is typically small, and pressure can be the highest, is not required to electromotor for public use when overturning drivers' cab
Power, easy to use, efficient energy-saving, when tail-off, can the turning over of normal operating drivers' cab
Turn, reduce oil consumption, save the energy.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes this
A part for application, schematic description and description of the present utility model is used for explaining this practicality
Novel, it is not intended that improper restriction of the present utility model.In the accompanying drawings:
The structural representation of the drivers' cab switching mechanism that Fig. 1 provides for this utility model；
The hydraulic principle schematic diagram of the drivers' cab switching mechanism that Fig. 2 provides for this utility model.
Label in accompanying drawing:
1-drivers' cab；2-overturning oil cylinder；3-hydraulic lock；4-stopping means；5-vehicle frame；6-locks dress
Put；7-choke valve；8-reversal valve；9-manual pump；10-the first check valve；11-the second check valve.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in embodiment is entered
Row clearly and completely describes.Obviously, described embodiment is only one of the present utility model
Divide embodiment rather than whole embodiments.Based on embodiment of the present utility model, this area is general
The every other embodiment that logical technical staff is obtained under not making creative work premise, all
Belong to the scope of this utility model protection.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " horizontal stroke
To ", "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ",
Orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only
It is for the ease of describing this utility model and simplifying description rather than instruction or the dress of hint indication
Put or element must have specific orientation, with specific azimuth configuration and operation, therefore can not
It is interpreted as the restriction to this utility model protection domain.
As shown in Figure 1 and Figure 2, drivers' cab switching mechanism schematic provided for this utility model
Embodiment, in this illustrative examples, drivers' cab switching mechanism includes drivers' cab 1, upset oil
Cylinder 2 and hydraulic control unit, the side of drivers' cab 1 is hinged with vehicle frame 5, drivers' cab 1 and vehicle frame 5
Between upset bearing pin can be set, drivers' cab 1 can by upset bearing pin overturn relative to vehicle frame 5.
One end of overturning oil cylinder 2 is articulated with drivers' cab 1, and the other end of overturning oil cylinder 2 is articulated with vehicle frame 5,
Hydraulic control unit includes manual pump 9 and reversal valve 8, and manual pump 9 is for entering for overturning oil cylinder 2
Oil provides power, and reversal valve 8, for changing the flow direction of hydraulic oil, controls hydraulic oil and enters upset
The rod chamber of oil cylinder 2 or rodless cavity.
Manual pump 9 in above-described embodiment is a kind of power source, and being manually operated can be hydraulic pressure
Oil sources required for system offer, the flow of manual pump 9 is typically small, and pressure can be the highest, no
Need engine power for public use, easy to use, efficient energy-saving.When tail-off, can be normal
The upset of operation drivers' cab 1, reduces oil consumption, saves the energy.
As in figure 2 it is shown, reversal valve 8 can include the first working position and the second working position,
One working position, the hydraulic oil in fuel tank can by reversal valve 8 enter overturning oil cylinder 2 without bar
Chamber, the hydraulic oil of the rod chamber of overturning oil cylinder 2 can pass through reversal valve 8 oil sump tank；Second
Working position, the hydraulic oil in fuel tank can enter the rod chamber of overturning oil cylinder 2 by reversal valve 8,
The hydraulic oil of the rodless cavity of overturning oil cylinder 2 can pass through reversal valve 8 oil sump tank.
As in figure 2 it is shown, hydraulic control unit can also include that hydraulic lock 3, hydraulic lock 3 are located at commutation
Oil circuit between the rodless cavity of valve 8 and overturning oil cylinder 2, the hydraulic control end connection upset of hydraulic lock 3
The rod chamber of oil cylinder 2.Use hydraulic lock 3 carry out locking overturning oil cylinder 2, can according to practical situation,
Arbitrarily regulating the upturned position of drivers' cab 1, upset locking is reliable, it is not necessary to rigidly fix, operation
Convenient, it is possible to increase the convenience of maintenance.
Hydraulic lock 3 can include hydraulic control one-way valve, the oil-in connection reversal valve of hydraulic control one-way valve
8, the rodless cavity of the oil-out connection overturning oil cylinder 2 of hydraulic control one-way valve, the hydraulic control of hydraulic control one-way valve
The rod chamber of end connection overturning oil cylinder 2.During the circulation of hydraulic oil forward, hydraulic control one-way valve can be smooth
Opening, hydraulic oil enters the rodless cavity of overturning oil cylinder 2；During hydraulic oil reverse circulated, overturning oil cylinder
The hydraulic oil of the rod chamber of 2 is provided by hydraulic control end and controls opened by pressure hydraulic control one-way valve, upset oil
The hydraulic oil of the rod chamber of cylinder 2 passes through hydraulic control one-way valve oil sump tank, can by arranging hydraulic control one-way valve
To play balanced load, pressurize etc. acts on.
As in figure 2 it is shown, hydraulic control unit can also include that hydraulic pressure is located at by choke valve 7, choke valve 7
Oil circuit between lock 3 and reversal valve 8.Employing inlet throttle controls, and adjustable speed is to being suitable for
Only, stable action, it is possible to increase the ride comfort of rotary movement, reduce impact.Entering of manual pump 9
The first check valve 10, the oil-out of manual pump 9 can be provided with fuel tank on the oil circuit that hydraulic fluid port connects
The second check valve 11 can be provided with on the oil circuit connected with reversal valve 8, prevent hydraulic oil suck-back.
As it is shown in figure 1, the drivers' cab switching mechanism that this utility model provides, permissible on vehicle frame 5
Being provided with locking device 6, under the non-rollover states of drivers' cab 1, locking device 6 is for by driver
Room 1 is locked with vehicle frame 5.By arranging locking device 6, when drivers' cab 1 initial position
Locking, it is possible to prevent drivers' cab 1 play.
One, preferably or in alternative embodiment, locking device 6 can include being located at drivers' cab 1
First connecting plate and the second connecting plate being located at vehicle frame 5, the first connecting plate and the second connecting plate can
To be connected by clamping screw locking.Locking device 6 can also use of the prior art other
Version realizes.
As it is shown in figure 1, the drivers' cab switching mechanism that this utility model provides, vehicle frame 5 also may be used
To be provided with stopping means 4, stopping means 4 is for limiting the maximum flip angle of drivers' cab 1.
By arranging stopping means 4, it is possible to carry out anti-mistake and turn over protection, limit flip angle, when being turned to
During predetermined angular, stopping means 4 works, and can effectively prevent drivers' cab 1 from crossing and turn over, it is to avoid injury
The generation of accident.
One, preferably or in alternative embodiment, stopping means 4 can include being located on drivers' cab 1
Arc-shaped limit plate and the stopper slot be located on vehicle frame 5, be located at stopper slot at arc-shaped limit board
State under, it is possible to limit drivers' cab 1 continue upset.
The work process of the drivers' cab switching mechanism that this utility model provides is as follows: during initial position,
Drivers' cab 1 is fixed on vehicle frame 5 by locking device 6, when needs upset drivers' cab 1, first
First open locking device 6, unlock drivers' cab 1；Then operation manual pump 9, pressure oil is through commutation
Valve 8, choke valve 7, hydraulic lock 3 promote overturning oil cylinder 2, so that drivers' cab 1 is around rotary shaft
Steadily upset, when needs arbitrarily stop, only need to stop operation manual pump 9, overturning oil cylinder
2 lean on hydraulic lock 3 locking, and drivers' cab 1 is just parked in this position；When continuing operation manual pump 9, driver
Upset will be continued in room 1, until stopping means 4 works, illustrates that drivers' cab 1 is turned to maximum
Angle, it is possible to meet service clearance requirement, due to spacing, drivers' cab 1 will not be further continued for upset.
When needs recover drivers' cab 1 position, the most reversing valve operated 8, it is switched to the second working position
Work, then operate manual pump 9, pressure oil enters into the rod chamber of overturning oil cylinder 2 by reversal valve 8,
Control oil simultaneously and can open hydraulic lock 2, make the hydraulic oil of overturning oil cylinder 2 rodless cavity flow counterflow through hydraulic pressure
Lock 2, enters finally in fuel tank, until drivers' cab 1 returns to initial position, finally by locking
Device 6 fixes drivers' cab 1.
This utility model additionally provides a kind of fork truck, and it includes the driver in any of the above-described embodiment
Room switching mechanism.
The drivers' cab switching mechanism that this utility model provides can make department when safeguarding with maintenance vehicle
Unit room can overturn, and then makes operator have enough spaces to grasp the element of frame interior
Keep in repair, time saving and energy saving, improve maintainability and the work efficiency of vehicle.
In description of the present utility model, it is to be understood that use " first ", " second " etc.
Word limits parts, it is only for be easy to distinguish above-mentioned parts, as not having
Stated otherwise, above-mentioned word does not has particular meaning, therefore it is not intended that to this utility model
The restriction of protection domain.
Finally should be noted that: above example is only in order to illustrate technical side of the present utility model
Case is not intended to limit；Although this utility model having been carried out specifically with reference to preferred embodiment
Bright, those of ordinary skill in the field are it is understood that still can be to tool of the present utility model
Body embodiment is modified or portion of techniques feature is carried out equivalent；Without deviating from this
The spirit of utility model technical scheme, it all should contain the technology being claimed at this utility model
In the middle of aspects.
Claims (11)
1. a drivers' cab switching mechanism, it is characterised in that: include drivers' cab (1), upset oil
Cylinder (2) and hydraulic control unit, the side of described drivers' cab (1) is hinged with vehicle frame (5), described
One end of overturning oil cylinder (2) is articulated with described drivers' cab (1), described overturning oil cylinder (2)
The other end is articulated with described vehicle frame (5), and described hydraulic control unit includes manual pump (9) and commutation
Valve (8), described manual pump (9) provides power for the oil-feed for described overturning oil cylinder (2),
Described reversal valve (8), for changing the flow direction of hydraulic oil, controls it and enters described overturning oil cylinder (2)
Rod chamber or rodless cavity.
2. drivers' cab switching mechanism as claimed in claim 1, it is characterised in that: described commutation
Valve (8) includes the first working position and the second working position, at the first working position, the hydraulic pressure in fuel tank
Oil can enter the rodless cavity of described overturning oil cylinder (2) by described reversal valve (8), described
The hydraulic oil of the rod chamber of overturning oil cylinder (2) can pass through described reversal valve (8) oil sump tank；
At the second working position, the hydraulic oil in fuel tank can turn over described in described reversal valve (8) entrance
Turning the rod chamber of oil cylinder (2), the hydraulic oil of the rodless cavity of described overturning oil cylinder (2) can lead to
Cross described reversal valve (8) oil sump tank.
3. drivers' cab switching mechanism as claimed in claim 1, it is characterised in that: described hydraulic control fills
Putting and also include hydraulic lock (3), described hydraulic lock (3) is located at described reversal valve (8) with described
Oil circuit between the rodless cavity of overturning oil cylinder (2), the hydraulic control end connection of described hydraulic lock (3)
The rod chamber of described overturning oil cylinder (2).
4. drivers' cab switching mechanism as claimed in claim 3, it is characterised in that: described hydraulic pressure
Lock (3) includes hydraulic control one-way valve, and the oil-in of described hydraulic control one-way valve connects described reversal valve (8),
The oil-out of described hydraulic control one-way valve connects the rodless cavity of described overturning oil cylinder (2), described hydraulic control
The hydraulic control end of check valve connects the rod chamber of described overturning oil cylinder (2).
5. drivers' cab switching mechanism as claimed in claim 3, it is characterised in that: described hydraulic control fills
Putting and also include choke valve (7), described choke valve (7) is located at described hydraulic lock (3) with described
Oil circuit between reversal valve (8).
6. drivers' cab switching mechanism as claimed in claim 1, it is characterised in that: described manually
The oil circuit that the oil-in of pump (9) connects with fuel tank is provided with the first check valve (10), described hands
The oil circuit that the oil-out of dynamic pump (9) connects with described reversal valve (8) is provided with the second check valve
(11)。
7. drivers' cab switching mechanism as claimed in claim 1, it is characterised in that: described vehicle frame
(5) locking device (6) it is provided with, under described drivers' cab (1) non-rollover states, described
Locking device (6) is for being locked described drivers' cab (1) with described vehicle frame (5).
8. drivers' cab switching mechanism as claimed in claim 7, it is characterised in that: described locking
Device (6) includes the first connecting plate being located at described drivers' cab (1) and is located at described vehicle frame (5)
The second connecting plate, described first connecting plate is locked by clamping screw with described second connecting plate
Connect.
9. drivers' cab switching mechanism as claimed in claim 1, it is characterised in that: described vehicle frame
(5) being additionally provided with stopping means (4) on, described stopping means (4) is used for limiting described driver
The maximum flip angle of room (1).
10. drivers' cab switching mechanism as claimed in claim 9, it is characterised in that: described spacing
Device (4) includes the arc-shaped limit plate being located on described drivers' cab (1) and is located at described vehicle frame
(5) stopper slot on, when described arc-shaped limit board is located at described stopper slot, energy
Enough limit described drivers' cab (1) and continue upset.
11. 1 kinds of fork trucks, it is characterised in that: include the department as described in any one of claim 1-10
Unit room switching mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620202308.9U CN205527576U (en) | 2016-03-16 | 2016-03-16 | Cab tilting mechanism and fork truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620202308.9U CN205527576U (en) | 2016-03-16 | 2016-03-16 | Cab tilting mechanism and fork truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205527576U true CN205527576U (en) | 2016-08-31 |
Family
ID=56781830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620202308.9U Active CN205527576U (en) | 2016-03-16 | 2016-03-16 | Cab tilting mechanism and fork truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205527576U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108408651A (en) * | 2018-05-15 | 2018-08-17 | 龙工（上海）叉车有限公司 | A kind of tilt bed suspension overhead guard for fork truck |
| CN109278878A (en) * | 2018-11-27 | 2019-01-29 | 安徽江淮汽车集团股份有限公司 | Driver's cab turnover control system and driver's cabin |
| CN111595593A (en) * | 2020-05-29 | 2020-08-28 | 东风商用车有限公司 | Cab turnover test device and test method thereof |
-
2016
- 2016-03-16 CN CN201620202308.9U patent/CN205527576U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108408651A (en) * | 2018-05-15 | 2018-08-17 | 龙工（上海）叉车有限公司 | A kind of tilt bed suspension overhead guard for fork truck |
| CN109278878A (en) * | 2018-11-27 | 2019-01-29 | 安徽江淮汽车集团股份有限公司 | Driver's cab turnover control system and driver's cabin |
| CN111595593A (en) * | 2020-05-29 | 2020-08-28 | 东风商用车有限公司 | Cab turnover test device and test method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |