CN206814350U - A kind of Telescopic boom crane fork truck dual-purpose hydraulic control system - Google Patents
A kind of Telescopic boom crane fork truck dual-purpose hydraulic control system Download PDFInfo
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- CN206814350U CN206814350U CN201720626452.XU CN201720626452U CN206814350U CN 206814350 U CN206814350 U CN 206814350U CN 201720626452 U CN201720626452 U CN 201720626452U CN 206814350 U CN206814350 U CN 206814350U
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- leveling cyclinder
- switching valve
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Abstract
It the utility model is related to a kind of Telescopic boom crane fork truck dual-purpose hydraulic control system, including leveling cyclinder and dump ram, switching valve, switching valve has first passage, second channel, third channel, fourth lane, Five-channel, 6th passage and switching handle, first passage connects with the rodless cavity of leveling cyclinder, second channel connects with the rod chamber of leveling cyclinder, third channel connects with the rodless cavity of dump ram, fourth lane connects with the rod chamber of dump ram, Five-channel is connected with the 6th passage by connection tube, switching valve correspondingly switches handle and is provided with the first switching station and make the second switching station that first passage connects with Five-channel and second channel connects with the 6th passage for making that first passage connects with third channel and second channel connects with fourth lane.Hydraulic system of the present utility model compensate for telescopic arm forklift and Telescopic boom crane and use upper difference so that fork dress and lifting can be realized on a chassis.
Description
Technical field
It the utility model is related to a kind of Telescopic boom crane fork truck dual-purpose hydraulic control system.
Background technology
Telescopic arm forklift truck is the continuity and development of traditional forklift truck, it the advantages of be by the telescopic arm knot of autocrane
Structure and the function of traditional forklift truck organically combine, and the characteristics of making full use of telescopic arm structure to stretch high, stretch remote, match somebody with somebody
Close and apply various operation accessories, effectively expand the job area of forklift truck, improve adaptation of the forklift truck to Active workings
Property.For telescopic arm forklift truck in lifting process, its telescopic arm luffing, which is swung, can cause inclination of the pallet fork with equal angular, therefore,
It is required that levelling gear can be adjusted in real time to the angle of inclination of pallet fork, pallet fork is set to be in desired safe condition.
As Authorization Notice No. CN201525732U, the China of entitled " automatic cargo adjuster of cargo fork for fork loading with telescopie arm " are real
With automatic cargo adjuster of cargo fork for fork loading with telescopie arm, including telescopic arm and fast replacing device in new patent, is disclosed, described is fast
The upper articulation of changing device is hinged in the head front end of described telescopic arm, bottom and connecting rod one end of described fast replacing device,
Driven leveling cyclinder one end is hinged on the head rear end of described telescopic arm, among the head of rocking bar one end and described telescopic arm
Be hinged, the other end is hinged with the other end of described driven leveling cyclinder and the other end of described connecting rod, active leveling cyclinder
One end is hinged on car body, and the described active leveling cyclinder other end is hinged on described telescopic arm, described active leveling
The rod chamber of oil cylinder connects with the rod chamber of described driven leveling cyclinder, the rodless cavity of described active leveling cyclinder with it is described
Driven leveling cyclinder rodless cavity connection.
And Telescopic boom crane is when in use, without carrying out leveling, in use, according to the demand of application scenario, divide
Not Shi Yong telescopic arm forklift and Telescopic boom crane, its use cost is higher.
In consideration of it, the present inventor carries out in-depth study to above mentioned problem, there is this case generation then.
Utility model content
The purpose of this utility model be to provide one kind crane function and forklift function can be concentrated on same chassis,
Save the Telescopic boom crane fork truck dual-purpose hydraulic control system of production cost.
In order to achieve the above object, technical scheme as the utility model use：
A kind of Telescopic boom crane fork truck dual-purpose hydraulic control system, including the leveling cyclinder and use being connected with telescopic arm
Dump ram in adjustment lift truck attachment angle of inclination, in addition to the switching valve being arranged between leveling cyclinder and dump ram,
Switching valve has first passage, second channel, third channel, fourth lane, Five-channel, the 6th passage and switching handle,
First passage connects with the rodless cavity of leveling cyclinder, and second channel connects with the rod chamber of leveling cyclinder, and third channel is with tilting
The rodless cavity connection of oil cylinder, fourth lane connect with the rod chamber of dump ram, and Five-channel and the 6th passage pass through connection tube
Connection, switching valve, which correspondingly switches handle and is provided with, makes first passage be connected with third channel and second channel connects with fourth lane
First switches station and makes the second switching station that first passage connects with Five-channel and second channel connects with the 6th passage.
As a kind of preferred embodiment of the present utility model, the connection tube is provided with threeway oil return valve block, threeway oil return valve
First port of block connects with the Five-channel, and the second port connects with the 6th passage, and third connectivity mouth is connected with back pressure
Valve.
As a kind of preferred embodiment of the present utility model, the switching valve is that two six of model 26-ZF-A are logical manual
Reversal valve.
After the technical solution of the utility model, with telescopic arm forklift truck, forklift truck is being carried out the utility model
During forklift workability, switching valve switches to the first switching station, and the rod chamber of leveling cyclinder connects with the rod chamber of dump ram, adjusts
The rodless cavity of flat oil cylinder connects with the rodless cavity of dump ram, realizes that leveling acts on by leveling cyclinder and dump ram；Work as fork
When as crane operation, switching valve switches to the second switching station, and leveling is realized by Five-channel and the 6th passage for entrucking
Cylinder rod chamber connects with rodless cavity, cuts off the contact of leveling cyclinder and dump ram, hydraulic system of the present utility model is more
Telescopic arm forklift and Telescopic boom crane are mended and have used upper difference so that fork dress and lifting can be realized on a chassis, reach
To cost-effective purpose.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of telescopic arm forklift truck in the utility model；
In figure：
1- telescopic arm forklift truck 10- leveling cyclinders
The rodless cavity of the rod chamber 12- leveling cyclinders of 11- leveling cyclinders
The rod chamber of 20- dump ram 21- dump rams
The rodless cavity 30- switching valves of 22- dump rams
31- first passage 32- second channels
33- third channel 34- fourth lanes
The passages of 35- Five-channels 36- the 6th
37- switches handle 40- connection tubes
50- threeway oil return valve block 60- counterbalance valves
Embodiment
In order to which the technical solution of the utility model is explained further, it is described in detail below in conjunction with the accompanying drawings.
Referring to Figures 1 and 2, a kind of Telescopic boom crane fork truck dual-purpose hydraulic control system, including be connected with telescopic arm
Leveling cyclinder 10 and for adjusting the dump ram 20 at lift truck attachment angle of inclination, in addition to be arranged on leveling cyclinder 10 with inclining
Switching valve 30 between oblique oil cylinder 20, switching valve 30 have first passage 31, second channel 32, third channel 33, fourth lane
34th, Five-channel 35, the 6th passage 36 and switching handle 37, first passage 31 connect with the rodless cavity 12 of leveling cyclinder, the
Two passages 32 connect with the rod chamber 11 of leveling cyclinder, and third channel 33 connects with the rodless cavity 22 of dump ram, fourth lane
34 are connected with the rod chamber 21 of dump ram, and Five-channel 35 is connected with the 6th passage 36 by connection tube 40, and switching valve 30 is right
Handle 37 should be switched be provided with makes first passage 31 be connected with third channel 33 and second channel 32 connects with fourth lane 34 the
One switching station and first passage 31 is set to be connected with Five-channel 35 and second channel 32 connects with the 6th passage 36 second cuts
Change station.
As a kind of preferred embodiment of the present utility model, the connection tube 40 is provided with threeway oil return valve block 50, and threeway is returned
First port of fuel tap block 50 connects with the Five-channel 35, and the second port connects with the 6th passage 36, third connectivity mouth
Counterbalance valve 60 is connected with, by setting counterbalance valve 60 to carry out repairing to leveling cyclinder 10, the inside of leveling cyclinder 10 is avoided and enters
Air.
As a kind of preferred embodiment of the present utility model, the switching valve 30 is two six of model 26-ZF-A and leads to hands
Dynamic reversal valve, the switching valve 30 are produced by Fenghua City Ding Rui starting elements factory.
Because telescopic arm forklift must use levelling gear, and Telescopic boom crane need not use levelling gear.This practicality
New hydraulic system can just make up this species diversity so that hang fork dual-purpose can realize on same chassis.Work as telescopic arm
When forklift truck 1 needs to use forklift truck function, switching valve 30 pushes No. 1 position, i.e., first passage 31 connected with third channel 33 and
Second channel 32 is connected with fourth lane 34, and the oil circuit of threeway oil return valve block 50 is closed, and oil circuit can be with having leveling cyclinder
Rod cavity 11 is connected with the rod chamber 21 of dump ram, and the rodless cavity 12 of leveling cyclinder is connected with the rodless cavity 22 of dump ram, with
Realize the effect of hydraulic leveling.And when as sling cart function in use, switching valve 30 is dialed in No. 2 positions, first passage 31 with
Five-channel 35 connects and second channel 32 connects with the 6th passage 36, and oil circuit just can not lead to dump ram 20 so that lifting
Car need not use levelling gear.And when sling cart function, as Telescopic boom body rises, leveling cyclinder 10 can be drawn therewith
Go out, and the now oil-feed of rodless cavity 12 of leveling cyclinder, the oil return of rod chamber 11 of leveling cyclinder, oil circuit return through threeway oil return valve block 50
Fuel tank, and now whole leveling cyclinder 10 is independent from whole hydraulic system, install a counterbalance valve 60 additional, so as to for
Leveling cyclinder 10 carries out repairing, has air entrance inside leveling cyclinder 10 so as to avoid.
Product form of the present utility model is not limited to this case diagram and embodiment, and anyone carries out similar thinking to it
Appropriate change or modification, all should be regarded as not departing from patent category of the present utility model.
Claims (3)
1. a kind of Telescopic boom crane fork truck dual-purpose hydraulic control system, including the leveling cyclinder that is connected with telescopic arm and it is used for
Adjust the dump ram at lift truck attachment angle of inclination, it is characterised in that：Also include being arranged between leveling cyclinder and dump ram
Switching valve, switching valve have first passage, second channel, third channel, fourth lane, Five-channel, the 6th passage and
Switch handle, first passage connects with the rodless cavity of leveling cyclinder, and second channel connects with the rod chamber of leveling cyclinder, threeway
Road connects with the rodless cavity of dump ram, and fourth lane connects with the rod chamber of dump ram, and Five-channel leads to the 6th passage
Cross connection tube connection, switching valve, which correspondingly switches handle and is provided with, makes first passage be connected with third channel and second channel and four-way
First switching station of road connection and first passage is set to be connected with Five-channel and second channel connects with the 6th passage second
Switch station.
2. Telescopic boom crane fork truck dual-purpose hydraulic control system as claimed in claim 1, it is characterised in that：On the connection tube
Provided with threeway oil return valve block, the first port of threeway oil return valve block connects with the Five-channel, the second port and the described 6th
Passage connects, and third connectivity mouth is connected with counterbalance valve.
3. Telescopic boom crane fork truck dual-purpose hydraulic control system as claimed in claim 1, it is characterised in that：The switching valve is
The logical hand-operated direction valve of two six of model 26-ZF-A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720626452.XU CN206814350U (en) | 2017-06-01 | 2017-06-01 | A kind of Telescopic boom crane fork truck dual-purpose hydraulic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720626452.XU CN206814350U (en) | 2017-06-01 | 2017-06-01 | A kind of Telescopic boom crane fork truck dual-purpose hydraulic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206814350U true CN206814350U (en) | 2017-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720626452.XU Active CN206814350U (en) | 2017-06-01 | 2017-06-01 | A kind of Telescopic boom crane fork truck dual-purpose hydraulic control system |
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| Country | Link |
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| CN (1) | CN206814350U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109484991A (en) * | 2018-08-06 | 2019-03-19 | 福建华南重工机械制造有限公司 | A kind of fork crane |
| CN111547653A (en) * | 2020-05-19 | 2020-08-18 | 三一海洋重工有限公司 | Fork leveling system and method and telescopic arm forklift |
-
2017
- 2017-06-01 CN CN201720626452.XU patent/CN206814350U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109484991A (en) * | 2018-08-06 | 2019-03-19 | 福建华南重工机械制造有限公司 | A kind of fork crane |
| CN109484991B (en) * | 2018-08-06 | 2023-09-01 | 福建华南重工机械制造有限公司 | Fork crane |
| CN111547653A (en) * | 2020-05-19 | 2020-08-18 | 三一海洋重工有限公司 | Fork leveling system and method and telescopic arm forklift |
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