CN200949011Y - Hydrostatic transmission apparatus for controlling single-rope grab bucket - Google Patents
Hydrostatic transmission apparatus for controlling single-rope grab bucket Download PDFInfo
- Publication number
- CN200949011Y CN200949011Y CN 200520047394 CN200520047394U CN200949011Y CN 200949011 Y CN200949011 Y CN 200949011Y CN 200520047394 CN200520047394 CN 200520047394 CN 200520047394 U CN200520047394 U CN 200520047394U CN 200949011 Y CN200949011 Y CN 200949011Y
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- hydraulic
- fluid port
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- oil
- cylinder
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Abstract
The utility model relates to a hydraulic transmission device for controlling the single-chain grab bucket which is characterized in that two groups of hydraulic cylinders are installed in the hydraulic transmission device and at least two oil outlets are positioned at the bottom of the hydraulic cylinder; one oil outlet is connected with the oil tank through a solenoid control valve and the other oil outlets are directly connected with the oil tank. When using, the two sides of the slipping base of the handle are fixed on the top of the piston rod of the two groups of cylinders which are connected with the lower supporting beam on the bottom. Under the control of the solenoid control valve, the lower supporting beam is driven up and down by the movement of the hydraulic cylinders to make the grab bucket open, load and unload the goods. The device is of easy operation, which greatly improves working efficiency and safety.
Description
Technical field:
The utility model relates to the technical field of bulk goods material handling, specifically a kind of hydraulic actuator that is used to control the single rope grab open and close.
Background technology:
The single rope grab that in bulk handling, uses at present all be usually pull open or land and open, need to operate or grab bucket and to open after landing by the workman is manual, work efficiency is lower, and poor stability, can't adapt to extensive modern industrial development needs.
Summary of the invention:
The purpose of this utility model is to provide a kind of improved hydraulic actuator that is used to control single rope grab, it need pull in the time of can overcoming single rope grab handling goods in the prior art open or land and open, work efficiency is lower, the some shortcomings of poor stability.
To achieve these goals, the technical solution of the utility model is: a kind of hydraulic actuator that is used to control single rope grab, described single rope grab is provided with through beam and slip base, wherein slip base links to each other with downslide wheels mechanism, hydraulic actuator mainly comprises hydraulic actuating cylinder, the fuel tank that is located at the hydraulic cylinder piston rod on the hydraulic actuating cylinder and links to each other with hydraulic actuating cylinder, it is characterized in that: be provided with two groups of hydraulic actuating cylinders in the hydraulic actuator, each hydraulic actuating cylinder bottom is equipped with at least two oil outlets, one of them oil outlet links to each other with fuel tank by a solenoid electric valve, and remaining oil outlet directly links to each other with fuel tank.
During use captive joint with the top of two groups of hydraulic cylinder piston rods respectively in the both sides of the slip base of grab bucket of the present utility model, captive joint with through beam respectively in two groups of hydraulic actuating cylinder cylinder barrel bottoms, under the control of electromagnetic valve, motion by hydraulic actuating cylinder drives through beam decline and rising, make grab bucket finish the work of opening and closing handling goods, simple easy operating improves work efficiency and safety greatly.
Description of drawings:
Fig. 1 is the structural representation of the utility model grab bucket
Fig. 2 is the internal connection scheme drawing of the utility model hydraulic actuator
Grab bucket structural representation when Fig. 3 is fully retracted for the utility model hydraulic cylinder piston rod
Grab bucket structural representation when Fig. 4 is stretched for the utility model hydraulic cylinder piston rod
Fig. 5 is the structural representation of the utility model hydraulic actuator
Fig. 6 is the closed structural representation of the utility model grab bucket
The structural representation of hydraulic actuator when Fig. 7 opens for the utility model grab bucket
The another structural representation of hydraulic actuator when Fig. 8 opens for the utility model grab bucket
The structural representation of hydraulic actuator when Fig. 9 grabs bucket closure for the utility model
The another structural representation of hydraulic actuator when Figure 10 grabs bucket closure for the utility model
The specific embodiment:
The utility model will be further described below in conjunction with drawings and Examples.
Grab bucket described in the utility model is provided with through beam 6 and slip base 5, wherein slip base links to each other with downslide wheels mechanism, the fuel tank 9 that hydraulic actuator mainly comprises hydraulic actuating cylinder 8, is located at the hydraulic cylinder piston rod on the hydraulic actuating cylinder and links to each other with hydraulic actuating cylinder, its difference with the prior art is: be provided with two groups of hydraulic actuating cylinders in the hydraulic actuator, each hydraulic actuating cylinder bottom is equipped with at least two oil outlets, one of them oil outlet links to each other with fuel tank by a solenoid electric valve 10, and remaining oil outlet directly links to each other with fuel tank; Captiveing joint with the top of two groups of hydraulic cylinder piston rods 11 respectively in the both sides of slip base, captives joint with through beam respectively in two groups of hydraulic actuating cylinder cylinder barrel bottoms.
The piston rod bottom of hydraulic actuating cylinder is provided with at least two hydraulic fluid ports 15 and a hydraulic fluid port 16, the hydraulic actuating cylinder bottom is provided with at least two hydraulic fluid ports 17 and a hydraulic fluid port 18, the position of hydraulic fluid port 18 is corresponding with the position of hydraulic fluid port 16, and hydraulic fluid port 18 is arranged on hydraulic actuating cylinder center, bottom and extends a barrel-contoured oil outlet pipe 12 to cylinder interior.The diameter of hydraulic fluid port 18 oil outlet pipes matches with the diameter of hydraulic fluid port 16, and can be sealed and matched with hydraulic fluid port 16 formation.Hydraulic fluid port 15 is the hydraulic fluid port of unidirectional conducting, and the oil pipe passage on its top is provided with a ball plug 13 greater than the oil pipe passage of bottom in the oil pipe passage on top, and the diameter of ball plug plays the effect of check valve greater than the diameter of bottom oil pipe.Fuel tank is provided with an oil filter 14.
In force, the handgrip structural representation is seen Fig. 1, wherein mark 1 is an equalizing bar, 2 is guide rope device, 3 is deck beam, 4 is strut, 7 is the jaw lobe, hydraulic cylinder piston rod was fully retracted hydraulic actuating cylinder cylinder barrel the inside when grab bucket was normally placed, during use, the equalizing bar of will grabbing bucket links to each other with crane fall, crane lifting, driving slip base by the inner downslide wheels mechanism of grabbing bucket rises, the slip base both sides are connected (referring to Fig. 3 with the hydraulic cylinder piston rod top, Fig. 4), slip base contacts with through beam when hydraulic cylinder piston rod is fully retracted, and when hydraulic cylinder piston rod was stretched, slip base then separated with through beam.When hydraulic cylinder piston rod is fully retracted, the rod chamber of hydraulic actuating cylinder forms certain pressure, piston hydraulic fluid port 15 is dead by the unidirectional block of valve, hydraulic fluid port 16 and hydraulic fluid port 18 combine as a whole, hydraulic fluid port 18 is by the normally closed electromagnetic valve system block of valve dead (referring to Fig. 5), hydraulic oil in the rod chamber can't be got back to rodless cavity, then hydraulic cylinder piston rod can't move, the hydraulic actuating cylinder cylinder barrel bottom (see figure 3) that links to each other with through beam, slip base drives through beam by oil cylinder and rises, make jaw lobe 7 closures, a closed action (see figure 6) that grasps material is promptly finished in grab bucket.
Crane fall continues to promote, when making grab bucket move to assigned address and need open, the user only need press remote control transmitter and send signal, receiver of remote-control sytem in the grab bucket receives signal and sends signal through control capsule to solenoid electric valve, allow its valve core move, (time delay device on the solenoid electric valve is started working at this moment to make the hydraulic actuating cylinder rod chamber connect fuel tank by hydraulic fluid port 16, hydraulic fluid port 18, allow slowly return of valve core, time enough allows the oil cylinder piston bar e stroke of passing by), the pressure in the hydraulic actuating cylinder rod chamber f obtains discharging.The through beam by gravity is given drop-down power of hydraulic actuating cylinder cylinder barrel, and hydraulic actuating cylinder is stretched gradually, and the jaw lobe of grabbing bucket simultaneously also relaxes open (effect that hydraulic actuating cylinder also plays buffering in this process).In this process, piston is in the e stroke, hydraulic oil in the rod chamber f is by hydraulic fluid port 16, hydraulic fluid port 18 is forced in the fuel tank, meanwhile form negative pressure in the rodless cavity g of Xing Chenging, by barometric pressure hydraulic oil in the fuel tank is compressed into rodless cavity g (see figure 7), (close in this stroke by electromagnetic valve in the h stroke for piston, cut off the path of hydraulic fluid port 18 and fuel tank), hydraulic oil is pressed in the rodless cavity g by hydraulic fluid port 16 in the rod chamber f, because the volume that dwindles in the hydraulic actuating cylinder rod chamber is less than the volume that increases in the rodless cavity, then form certain negative pressure power in the rodless cavity, hydraulic oil in the fuel tank is pressed in the rodless cavity g to its compensation (see figure 8) by cylinder barrel hydraulic fluid port 17 by barometric pressure.When the jaw lobe was opened fully, grab bucket was promptly finished one and is opened the action of finishing the release material.
When grab bucket need come back to bank extracting goods, grab bucket is put on the bank, crane fall descends, slip base descends and descends along with crane fall under the effect of deadweight, the oil cylinder piston bar himself with the slip base action of gravity under along with slip base descends and is returned to (when slip base contact with through beam, complete return of piston rod while) in the cylinder barrel gradually.In this process, piston is in the I stroke, hydraulic oil is got back to rod chamber by hydraulic fluid port 16 in the rodless cavity, because the volume that dwindles in the rodless cavity is greater than the volume that increases in the rod chamber, part hydraulic oil is compressed the oil sump tank (see figure 9) by hydraulic fluid port 17, piston is in the j stroke, and hydraulic oil replenishes by the check valve of hydraulic fluid port 15 in the rod chamber, and the inner hydraulic oil that divides of rodless cavity still pushes back the fuel tank (see figure 10) by hydraulic fluid port 17.At this moment, promote crane fall, grab bucket can be finished closed action.So circulation, grab bucket can be finished the work of loading and unloading material continuously.
Claims (6)
1, a kind of hydraulic actuator that is used to control single rope grab, described grab bucket is provided with through beam and slip base, wherein slip base links to each other with downslide wheels mechanism, the fuel tank that hydraulic actuator mainly comprises hydraulic actuating cylinder, is located at the hydraulic cylinder piston rod on the hydraulic actuating cylinder and links to each other with hydraulic actuating cylinder, it is characterized in that: be provided with two groups of hydraulic actuating cylinders in the hydraulic actuator, each hydraulic actuating cylinder bottom is equipped with at least two oil outlets, one of them oil outlet links to each other with fuel tank by a solenoid electric valve, and remaining oil outlet directly links to each other with fuel tank.
2, a kind of hydraulic actuator that is used to control single rope grab according to claim 1, it is characterized in that: captive joint with the top of two groups of hydraulic cylinder piston rods respectively in the both sides of slip base, and captive joint with through beam respectively in two groups of hydraulic actuating cylinder cylinder barrel bottoms.
3, a kind of hydraulic actuator that is used to control single rope grab according to claim 1, it is characterized in that: the piston rod bottom of hydraulic actuating cylinder is provided with at least two hydraulic fluid ports (15) and a hydraulic fluid port (16), the hydraulic actuating cylinder bottom is provided with at least two hydraulic fluid ports (17) and a hydraulic fluid port (18), the position of hydraulic fluid port (18) is corresponding with the position of hydraulic fluid port (16), and hydraulic fluid port (18) is arranged on cylinder bottom portion center and extends a barrel-contoured oil outlet pipe to cylinder interior.
4, a kind of hydraulic actuator that is used to control single rope grab according to claim 3 is characterized in that: the diameter of hydraulic fluid port (18) oil outlet pipe matches with the diameter of hydraulic fluid port (16), and can be sealed and matched with hydraulic fluid port (16) formation.
5, a kind of hydraulic actuator that is used to control single rope grab according to claim 3, it is characterized in that: hydraulic fluid port (15) is the hydraulic fluid port of unidirectional conducting, the oil pipe passage on its top is greater than the oil pipe passage of bottom, be provided with a ball plug in the oil pipe passage on top, the diameter of ball plug is greater than the diameter of bottom oil pipe.
6, a kind of hydraulic actuator that is used to control single rope grab according to claim 1, it is characterized in that: fuel tank is provided with an oil filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047394 CN200949011Y (en) | 2005-12-09 | 2005-12-09 | Hydrostatic transmission apparatus for controlling single-rope grab bucket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047394 CN200949011Y (en) | 2005-12-09 | 2005-12-09 | Hydrostatic transmission apparatus for controlling single-rope grab bucket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200949011Y true CN200949011Y (en) | 2007-09-19 |
Family
ID=38891553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520047394 Expired - Fee Related CN200949011Y (en) | 2005-12-09 | 2005-12-09 | Hydrostatic transmission apparatus for controlling single-rope grab bucket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200949011Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352879A (en) * | 2013-06-28 | 2013-10-16 | 安庆市华鑫重工有限公司 | Hydraulic lock system for realizing remote control on opening and closing of single-rope grab bucket |
-
2005
- 2005-12-09 CN CN 200520047394 patent/CN200949011Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352879A (en) * | 2013-06-28 | 2013-10-16 | 安庆市华鑫重工有限公司 | Hydraulic lock system for realizing remote control on opening and closing of single-rope grab bucket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |