CN206977954U - It is a kind of to control the lifting device of hoisting depth and the tractor with the device - Google Patents
It is a kind of to control the lifting device of hoisting depth and the tractor with the device Download PDFInfo
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- CN206977954U CN206977954U CN201720485104.5U CN201720485104U CN206977954U CN 206977954 U CN206977954 U CN 206977954U CN 201720485104 U CN201720485104 U CN 201720485104U CN 206977954 U CN206977954 U CN 206977954U
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- Prior art keywords
- lifter
- hoisting depth
- lifting device
- shaft
- lift
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Abstract
The utility model provides a kind of lifting device for controlling hoisting depth, include lifter casing, rotary setting is in the lift shaft on lifter casing, the lift arm being located in lift shaft and the hydraulic jack for acting power to lift shaft, lifter box house has accommodating cavity, hydraulic jack one end is connected with piston rod, the free end of piston rod is flexibly connected with the input of lift shaft, the rotating shaft of the hydraulic jack other end connects control shaft, lifter box outer surface is provided with multiple projections along control shaft at control shaft around rotary motion trace, control shaft is close to lifter box outer surface；A kind of tractor is additionally provided, includes the lifting device of above-mentioned control hoisting depth.The utility model can prevent the excessive height that lifter lifts, so as to avoid excessively damage of the lifting to the hydraulic system of the lifter, and the infringement of the component on the lifting path of lifter is pointed to, and can require to realize the regulation to hoisting depth based on different liftings.
Description
Technical field
The utility model belongs to agricultural machinery hydraulic lifting mechanism field, and in particular to a kind of lifting for controlling hoisting depth
Device and the tractor with the device.
Background technology
For many years, tractor rear-mounted hydraulic lifting system never has big change, and lifter band is driven by gearbox
Dynamic rear-mounted rod member lifting, although can be with supporting lifting from structure, reliability be relatively low in actual applications, failure is more, dimension
Repair inconvenience.Existing tractor lift structure, the mounting bracket on lift cylinder and tractor rear axle housing are direct by bearing pin
Connection, abrasion is also easy to produce in lifting process bearing pin, influences the service life of bearing pin, and then influence lift cylinder functional reliability；
Or oil cylinder seat and lift cylinder, directly by hinge, bearing pin is also easy to produce abrasion in lifting process, influences making for bearing pin
With the life-span, and then influence lift cylinder functional reliability；Or lift cylinder and bearing pin support assemble an oscillating bearing, this
Though scheme solves the problems, such as abrasion, unstable in lifting process lift cylinder axis, easily collided with its Surrounding Parts.And
And tractor horsepower is bigger requires that lifting force is bigger, lifter need to such as improve lifting force, then need to increase while horsepower is lifted
Cylinder diameter, increase housing, and then need tractor chassis to increase, but so greatly increase development difficulty and cost.
Tractor during use, it is necessary to farm implements that rear tractor is pulled are lifted or fallen with lifter, with
Just operation is carried out using farm implements.The domestic lifter that this type tractor is configured in the prior art above has two kinds of disadvantages in application
End：First, the drawbacks of in terms of lifter control mode, lifter control mode has two kinds present on domestic market：One kind is power
Control, position control, the lifting device of power position Comprehensive Control, complicated, poor reliability；Another kind is that simple height regulation carries
Device is risen, function is simple, and handling comfort is poor.Second, distributor and hydraulic pressure delivery valve the installation drawback of lifter, domestic city
The distributor of lifter and the installation of hydraulic pressure delivery valve separated type, empty because small compact type complete machine of tractor is compact-sized on field
Between it is narrow and small, and fluid pressure line is more and complicated, causes external hydraulic pressure delivery valve installation difficulty.
Utility model content
【1】Technical problems to be solved
The technical problems to be solved in the utility model is to provide a kind of excessive height that can prevent lifter from lifting, so as to
Excessively damage of the lifting to the hydraulic system of the lifter is avoided, and the component being pointed on the lifting path of lifter
Infringement, and can require to realize the lifting device of the regulation to hoisting depth and dragging with the device based on different liftings
Machine drawing.
【2】The technical scheme solved the problems, such as
The utility model provides a kind of lifting device for controlling hoisting depth, includes lifter casing, rotary setting in described
Lift shaft on lifter casing, the lift arm being located in the lift shaft and the liquid for acting power to the lift shaft
Compressing cylinder, the lifter box house have accommodating cavity, and described hydraulic jack one end is connected with piston rod, the piston rod
Free end is flexibly connected with the input of the lift shaft, and the hydraulic jack other end rotating shaft connects control shaft, the lifting
Device box outer surface is provided with multiple projections along the control shaft at the control shaft around rotary motion trace, and the control shaft is close to
The lifter box outer surface.
The lifting device of above-mentioned control hoisting depth, the lift arm have two, are symmetricly set on the lifter case
The both sides of body.
The lifting device of above-mentioned control hoisting depth, the raised inner side pass through lifter casing described in elastic connection
Inner surface.
The lifting device of above-mentioned control hoisting depth, the hydraulic jack are located at the accommodating cavity of the lifter casing
In.
The lifting device of above-mentioned control hoisting depth, the lifter casing are connected with oil inlet pipe, the fuel feed pump
The other end is connected with gear pump, and hydraulic oil is delivered to and suppresses distributor by the gear pump by oil inlet pipe, described to suppress distribution
Device is connected by rising oil pipe and declining oil pipe with the hydraulic jack respectively, rises oil with described in the distributor of suppressing
The junction of pipe, the decline oil pipe and the oil inlet pipe is provided with safety valve.
The lifting device of above-mentioned control hoisting depth, the hydraulic jack is connected with the lifter casing rushes down oil
Pipe.
The utility model additionally provides a kind of tractor, includes the lifting device of above-mentioned control hoisting depth.
【3】Beneficial effect
The lifting device of this control hoisting depth of the utility model and the tractor with the device can prevent from being lifted
The excessive height that device lifts, so as to avoid excessively damage of the lifting to the hydraulic system of the lifter, and it is pointed to be lifted
The infringement of component on the lifting path of device, and can require to realize the regulation to hoisting depth based on different liftings；Together
When be provided with safety valve with the junction for rising oil pipe, declining oil pipe and oil inlet pipe suppressing distributor, be effectively protected oil cylinder, from
And the service life of system is enhanced, the utility model is compact-sized, it is relatively low to manipulate concentration, manufacturing cost.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the lifting device of control hoisting depth of the utility model.
Embodiment
Below in conjunction with the accompanying drawings, the utility model embodiment is discussed in detail.
Refering to Fig. 1, the utility model provides a kind of lifting device for controlling hoisting depth, includes lifter casing 1, rotation is set
The lift shaft 2 that is placed on the lifter casing 1, the lift arm 21 being located in the lift shaft 2 and for the lift shaft 2
The hydraulic jack 3 of power is acted, the inside of lifter casing 1 has accommodating cavity, and described one end of hydraulic jack 3 is connected with work
Stopper rod 31, the free end of the piston rod 31 are flexibly connected with the input of the lift shaft 2, the other end of hydraulic jack 3
Rotating shaft connects control shaft 22, and the outer surface of lifter casing 1 is at the control shaft 22 along the control shaft 22 around rotation
Track is provided with multiple raised 11, and the control shaft 22 is close to the outer surface of lifter casing 1.Lifter casing 1 is used for dragging
Machine drawing rear axle housing body top connect, the lifting device of this control hoisting depth is installed on tractor, outer lift arm for
The lifting arm of tractor mounnted frame is attached.It is located at the inner arm in lift shaft 2 and inside lifter casing 1, inner arm
One end be fixedly connected with lift shaft 2, the other end is rotatablely connected by the piston rod 31 of bearing pin and hydraulic jack 3, hydraulic jack 3
Piston rod 31 make stretching motion so that inner arm can swing back and forth, and inner arm drives lift shaft 2 to rotate simultaneously.
Further, it is described to carry in a kind of preferred embodiment for the lifting device for controlling hoisting depth of the utility model
Rising arm 21 has two, is symmetricly set on the both sides of the lifter casing 1.Peace of the end of lift shaft 2 out of lifter casing 1
Dress is stretched out in hole, and the rear end of lift arm 21 is connected with the end of lift shaft 2, and front end is used to carry out with the farm implements that machine drawing rear is pulled
Connection.
Further, it is described convex in a kind of preferred embodiment for the lifting device for controlling hoisting depth of the utility model
Play the inner surface that 11 inner sides pass through lifter casing 1 described in elastic connection.
Further, in a kind of preferred embodiment for the lifting device for controlling hoisting depth of the utility model, the liquid
Compressing cylinder 3 is located in the accommodating cavity of the lifter casing 1.
Further, it is described to carry in a kind of preferred embodiment for the lifting device for controlling hoisting depth of the utility model
Rise device casing 1 to be connected with oil inlet pipe, the other end of the fuel feed pump is connected with gear pump, and the gear pump is by oil inlet pipe by liquid
Force feed, which is delivered to, suppresses distributor, described to suppress distributor respectively by rising oil pipe and declining oil pipe and the hydraulic jack 3
Connection, safety is provided with the rising oil pipe, the junction for declining oil pipe and the oil inlet pipe in the distributor of suppressing
Valve.
Further, in a kind of preferred embodiment for the lifting device for controlling hoisting depth of the utility model, the liquid
Compressing cylinder 3 is connected with the lifter casing 1 rushes down oil pipe.
A kind of tractor, include the lifting device of above-mentioned control hoisting depth.
The lifting device of this control hoisting depth of the utility model and the tractor with the device can prevent from being lifted
The excessive height that device lifts, so as to avoid excessively damage of the lifting to the hydraulic system of the lifter, and it is pointed to be lifted
The infringement of component on the lifting path of device, and can require to realize the regulation to hoisting depth based on different liftings；Together
When be provided with safety valve with the junction for rising oil pipe, declining oil pipe and oil inlet pipe suppressing distributor, be effectively protected oil cylinder, from
And the service life of system is enhanced, the utility model is compact-sized, it is relatively low to manipulate concentration, manufacturing cost.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of lifting device for controlling hoisting depth, includes lifter casing (1), rotary setting in the lifter casing (1)
On lift shaft (2), the lift arm (21) that is located in the lift shaft (2) and for acting power to the lift shaft (2)
Hydraulic jack (3), there is accommodating cavity inside the lifter casing (1), it is characterised in that：Described hydraulic jack (3) one end
Piston rod (31) is connected with, the free end of the piston rod (31) is flexibly connected with the input of the lift shaft (2), the liquid
Compressing cylinder (3) other end rotating shaft connection control shaft (22), lifter casing (1) outer surface is close to the control shaft (22) place
Multiple raised (11) are provided with around rotary motion trace along the control shaft (22), the control shaft (22) is close to the lifter casing
(1) outer surface.
A kind of 2. lifting device for controlling hoisting depth as claimed in claim 1, it is characterised in that：The lift arm (21) has
Two, it is symmetricly set on the both sides of the lifter casing (1).
A kind of 3. lifting device for controlling hoisting depth as claimed in claim 1, it is characterised in that：On the inside of the projection (11)
Pass through the inner surface of lifter casing (1) described in elastic connection.
A kind of 4. lifting device for controlling hoisting depth as claimed in claim 1, it is characterised in that：The hydraulic jack (3)
It is located in the accommodating cavity of the lifter casing (1).
A kind of 5. lifting device for controlling hoisting depth as claimed in claim 1, it is characterised in that：The lifter casing
(1) it is connected with oil inlet pipe, the other end of the oil inlet pipe is connected with gear pump, and the gear pump is defeated by hydraulic oil by oil inlet pipe
To deliver to and suppress distributor, the distributor of suppressing is connected by rising oil pipe and declining oil pipe with the hydraulic jack (3) respectively,
In the distributor of suppressing safety valve is provided with the rising oil pipe, the junction for declining oil pipe and the oil inlet pipe.
A kind of 6. lifting device for controlling hoisting depth as claimed in claim 1, it is characterised in that：The hydraulic jack (3)
It is connected with the lifter casing (1) and rushes down oil pipe.
A kind of 7. tractor, it is characterised in that：Include the lifting device of any described control hoisting depth of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720485104.5U CN206977954U (en) | 2017-05-04 | 2017-05-04 | It is a kind of to control the lifting device of hoisting depth and the tractor with the device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720485104.5U CN206977954U (en) | 2017-05-04 | 2017-05-04 | It is a kind of to control the lifting device of hoisting depth and the tractor with the device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206977954U true CN206977954U (en) | 2018-02-09 |
Family
ID=61392596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720485104.5U Active CN206977954U (en) | 2017-05-04 | 2017-05-04 | It is a kind of to control the lifting device of hoisting depth and the tractor with the device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206977954U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114568058A (en) * | 2022-03-08 | 2022-06-03 | 宁波奔野重工股份有限公司 | Agricultural tractor |
-
2017
- 2017-05-04 CN CN201720485104.5U patent/CN206977954U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114568058A (en) * | 2022-03-08 | 2022-06-03 | 宁波奔野重工股份有限公司 | Agricultural tractor |
| CN114568058B (en) * | 2022-03-08 | 2022-11-29 | 宁波奔野重工股份有限公司 | Agricultural tractor |
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