CN204416933U - The all-hydraulic control cart system of a kind of crane in bridge type - Google Patents
The all-hydraulic control cart system of a kind of crane in bridge type Download PDFInfo
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- CN204416933U CN204416933U CN201520004609.6U CN201520004609U CN204416933U CN 204416933 U CN204416933 U CN 204416933U CN 201520004609 U CN201520004609 U CN 201520004609U CN 204416933 U CN204416933 U CN 204416933U
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Abstract
The utility model relates to the all-hydraulic control cart system of a kind of crane in bridge type, comprising: the dolly with wheel; Described dolly is provided with the walk motor with hydraulic pressure that power is provided to described wheel; Described dolly is provided with motor, and the force-output shaft of motor is connected with Hydraulic Pump, and Hydraulic Pump is communicated with the hydraulic reservoir be located in dolly; The left and right sides of described motor is respectively equipped with main hoisting drum and secondary hoisting drum; Wherein, the end of main hoisting drum is provided with the main HM Hydraulic Motor that hoists; The end of described secondary hoisting drum is provided with pair and hoists HM Hydraulic Motor; And dolly is provided with hoists the automatically controlled valve mechanism of multichannel of HM Hydraulic Motor and walk motor with hydraulic pressure for controlling hoist HM Hydraulic Motor, pair of described master, the automatically controlled valve mechanism of multichannel is controlled by regulator cubicle.Cart system provided by the utility model, whole system only uses a motor, and uses relatively simple, the lightweight low speed high torque hydraulic motor of structure to make actuating unit, does not use reductor, alleviates the quality of dolly.
Description
Technical field
The utility model relates to crane facility field, specifically, relates to the all-hydraulic control cart system of a kind of crane in bridge type.
Background technology
At present, the dolly of domestic large tonnage crane in bridge type there are major and minor two unit that hoist, the walking of dolly is that dispersion drives mostly, and hoisting and walking is all that mode with motor-speed reducer drives, and such dolly has four motors and four reductors at least.Such type of drive has more shortcoming:
(1) use a lot of motor and speed reducers, some Special use application requirements crane in bridge type has two kinds of even more a lot of liters, speeds of travel, and needing increases more reductors, increases the stressed burden of dolly, improves productive costs;
(2) mechanical vibration make to hoist, walking movement is steady, larger to the force structure harm of hoister in large tonnage;
(3) when main lifting motor is different with secondary lifting motor use, hoist weight time always have a motor not work, waste resource.
Therefore, how designing a kind of brand-new trolley control system, is the problem that those skilled in the art's letter need solve.
Utility model content
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, provides a kind of crane in bridge type all-hydraulic control cart system.Cart system provided by the utility model, whole system only uses a motor, and uses relatively simple, the lightweight low speed high torque hydraulic motor of structure to make actuating unit, does not use reductor, alleviates the burden of dolly, saved resource.When hydraulic oil and mechanical action, there is buffer action, alleviate mechanical vibration.
In order to reach upper object, the utility model adopts following technical scheme:
The all-hydraulic control cart system of a kind of crane in bridge type, comprising:
There is the dolly of wheel;
Described dolly is provided with the walk motor with hydraulic pressure that power is provided to described wheel;
Described dolly is provided with motor, and the force-output shaft of motor is connected with Hydraulic Pump, and Hydraulic Pump is communicated with the hydraulic reservoir be located in dolly;
The left and right sides of described motor is respectively equipped with main hoisting drum and secondary hoisting drum; Wherein, the end of main hoisting drum is provided with the main HM Hydraulic Motor that hoists; The end of described secondary hoisting drum is provided with pair and hoists HM Hydraulic Motor;
Dolly is provided with and hoists the automatically controlled valve mechanism of multichannel of HM Hydraulic Motor and walk motor with hydraulic pressure for controlling hoist HM Hydraulic Motor, pair of described master, the automatically controlled valve mechanism of multichannel is controlled by regulator cubicle.
Preferably, the wheel of described dolly comprises left side wheel and right side wheels, and walk motor with hydraulic pressure comprises left side walk motor with hydraulic pressure and right side walk motor with hydraulic pressure, and left side walk motor with hydraulic pressure drives left side wheel, and right side walk motor with hydraulic pressure drives right side wheels.
Preferably, the automatically controlled valve mechanism of described multichannel is four tunnels, and first via electric control valve mechanism comprises and is connected with main hydraulic lifting motor successively and forms first electro-hydraulic proportion reversing valve in loop, Hydraulic Pump, the first pressure-compensated valve, the first check valve, first flow control cock and the first balance cock; Loop wherein between main hydraulic lifting motor and the first balance cock is provided with the first shuttle valve; Described first shuttle valve is also connected with the first hydraulic motor brake with second control valve successively, and the other end of the first hydraulic motor brake and main hydraulic lifting motors lead to.
Preferably, the automatically controlled valve mechanism of described multichannel is four tunnels, and the second road electric control valve mechanism comprises and is connected with secondary hydraulic lifting motor successively and forms second electro-hydraulic proportion reversing valve in loop, Hydraulic Pump, the second pressure-compensated valve, the 3rd check valve, the 3rd flow-controlling gate and the second balance cock; Loop wherein between secondary hydraulic lifting motor and the second balance cock is provided with the second shuttle valve; Described second shuttle valve is also connected with the second hydraulic motor brake with the 4th flow-controlling gate successively, and the other end of the second hydraulic motor brake and secondary hydraulic lifting motors lead to.
Preferably, the automatically controlled valve mechanism of described multichannel is four tunnels, and the 3rd road electric control valve mechanism comprises and is connected with left side walk motor with hydraulic pressure successively and forms the 4th balance cock in loop, the 3rd electro-hydraulic proportion reversing valve, Hydraulic Pump, the 3rd pressure-compensated valve, the 5th check valve, the 5th flow-controlling gate and the 3rd balance cock; Loop wherein between the 3rd balance cock and the 4th balance cock is provided with the 3rd shuttle valve, described 3rd shuttle valve is also connected with the 3rd hydraulic motor brake with the 6th flow-controlling gate successively, and the other end of the 3rd hydraulic motor brake is connected with left side walk motor with hydraulic pressure.
Preferably, the automatically controlled valve mechanism of described multichannel is four tunnels, and the 4th road electric control valve mechanism comprises and is connected with right side walk motor with hydraulic pressure successively and forms the 6th balance cock in loop, the 4th electro-hydraulic proportion reversing valve, Hydraulic Pump, the 4th pressure-compensated valve the 7th check valve, the 7th flow-controlling gate and the 5th balance cock; Loop wherein between the 5th balance cock and the 6th balance cock is provided with the 4th shuttle valve, described 4th shuttle valve is also connected with the 4th hydraulic motor brake with the 8th flow-controlling gate successively, and the other end of the 4th hydraulic motor brake is connected with right side walk motor with hydraulic pressure.
Preferably, described Hydraulic Pump is connected with by pass valve, and the other end of by pass valve is all communicated with any one electro-hydraulic proportion reversing valve.
Preferably, the 7th shuttle valve is connected with the loop of by pass valve with for connecting fluid press pump, and the 7th shuttle valve is also connected with the 6th shuttle valve with the 5th shuttle valve respectively; 5th shuttle valve is also connected with the 3rd road electric control valve mechanism with the 4th road electric control valve mechanism respectively; 6th shuttle valve is also connected with the second road electric control valve mechanism with first via electric control valve mechanism respectively.
Preferably, described first pressure-compensated valve is connected with the pipeline of second control valve with for being connected the first shuttle valve, and the 6th shuttle valve is connected with the pipeline of second control valve with for being connected the first pressure-compensated valve; Described second pressure-compensated valve is connected with the pipeline of the 4th flow-controlling gate with for being connected the second shuttle valve, and the 6th shuttle valve also with for being connected the second pressure-compensated valve is connected with the pipeline of the 4th flow-controlling gate.
Preferably, described 3rd pressure-compensated valve is connected with the pipeline of the 6th flow-controlling gate with for being connected the 3rd shuttle valve, and the 5th shuttle valve is connected with the pipeline of the 6th flow-controlling gate with for being connected the 3rd pressure-compensated valve; Described 4th pressure-compensated valve is connected with the pipeline of the 8th flow-controlling gate with for being connected the 4th shuttle valve, and the 5th shuttle valve also with for being connected the 4th pressure-compensated valve is connected with the pipeline of the 8th flow-controlling gate.
The beneficial effects of the utility model are: use a motor to drive four HM Hydraulic Motor, do not use reductor, alleviate the burden of dolly, saved resource.When hydraulic oil and mechanical action, there is buffer action, alleviate mechanical vibration.
Accompanying drawing illustrates:
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is readiness for action hydraulic schematic diagram of the present utility model;
Fig. 3 is walking states hydraulic schematic diagram of the present utility model;
Wherein: 1.1, main hydraulic lifting motor, 1.2, secondary hydraulic lifting motor, 1.3, left side walk motor with hydraulic pressure, 1.4, right side walk motor with hydraulic pressure, 2.1, first balance cock, 2.2, second balance cock, 2.3, 3rd balance cock, 2.4, 4th balance cock, 2.5, 5th balance cock, 2.6, 6th balance cock, 3.1, first electro-hydraulic proportion reversing valve, 3.2, second electro-hydraulic proportion reversing valve, 3.3, 3rd electro-hydraulic proportion reversing valve, 3.4, 4th electro-hydraulic proportion reversing valve, 4.1, first pressure-compensated valve, 4.2, second pressure-compensated valve, 4.3, 3rd pressure-compensated valve, 4.4, 4th pressure-compensated valve, 5.1, first check valve, 5.2, second check valve, 5.3, 3rd check valve, 5.4, 4th check valve, 5.5, 5th check valve, 5.6, 6th check valve, 5.7, 7th check valve, 5.8, 8th check valve, 6.1, first flow control cock, 6.2, second control valve, 6.3, 3rd flow-controlling gate, 6.4, 4th flow-controlling gate, 6.5, 5th flow-controlling gate, 6.6, 6th flow-controlling gate, 6.7, 8th flow-controlling gate, 7.1, Hydraulic Pump, 8.1, by pass valve, 9.1, first shuttle valve, 9.2, second shuttle valve, 9.3, 3rd shuttle valve, 9.4, 4th shuttle valve, 9.5, 5th shuttle valve, 9.6, 6th shuttle valve, 9.7, 7th shuttle valve, 10.1, first hydraulic motor brake, 10.2, second hydraulic motor brake, 10.3, 3rd hydraulic motor brake, 10.4, 4th hydraulic motor brake, 11.1, main hoisting drum, 11.2, secondary hoisting drum, 12, dolly, 13, regulator cubicle, 14, the automatically controlled valve mechanism of multichannel, 15, motor, 17, oil outlet, 18, return opening, 19 rolling wheels, 20, end carriage.
Detailed description of the invention:
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment 1: as Figure 1-3: the all-hydraulic control cart system of a kind of crane in bridge type, comprising:
There is the dolly 12 of wheel;
Described dolly 12 is provided with the walk motor with hydraulic pressure providing power to described wheel;
Described dolly is provided with motor 15, the force-output shaft of motor 15 is connected with Hydraulic Pump 7.1, and Hydraulic Pump 7.1 is communicated with the hydraulic reservoir be located in dolly; Specifically, the both sides of dolly 12 are end carriage, and fuel tank is arranged in the end carriage of dolly 12, and fuel tank has oil outlet 17 and return opening 18;
The left and right sides of described motor 15 is respectively equipped with main hoisting drum 11.1 and secondary hoisting drum 11.2; Wherein, the end of main hoisting drum 11.1 is provided with the main HM Hydraulic Motor 1.1 that hoists; The end of described secondary hoisting drum 11.2 is provided with pair and hoists HM Hydraulic Motor 1.2;
Dolly is provided with and hoists the automatically controlled valve mechanism of multichannel of HM Hydraulic Motor 1.2 and walk motor with hydraulic pressure for controlling hoist HM Hydraulic Motor 1.1, pair of described master, the automatically controlled valve mechanism of multichannel is controlled by regulator cubicle 13.
The wheel of described dolly 12 comprises left side wheel and right side wheels, walk motor with hydraulic pressure comprises left side walk motor with hydraulic pressure 1.3 and right side walk motor with hydraulic pressure 1.4, and left side walk motor with hydraulic pressure 1.3 drives left side wheel, right side walk motor with hydraulic pressure 1.4 drives right side wheels.
The automatically controlled valve mechanism of described multichannel is four tunnels, and first via electric control valve mechanism comprises and is connected with main hydraulic lifting motor 1.1 successively and forms first electro-hydraulic proportion reversing valve 3.1 in loop, Hydraulic Pump 7.1, first pressure-compensated valve 4.1, first check valve 5.1, first flow control cock 6.1 and the first balance cock 2.1; Loop wherein between main hydraulic lifting motor and the first balance cock 2.1 is provided with the first shuttle valve 9.1; Described first shuttle valve 9.1 is also connected with the first hydraulic motor brake 10.1 with second control valve 6.2 successively, and the other end of the first hydraulic motor brake 10.1 is connected with main hydraulic lifting motor 1.1.
The automatically controlled valve mechanism of described multichannel is four tunnels, and the second road electric control valve mechanism comprises and is connected with secondary hydraulic lifting motor 1.2 successively and forms the second electro-hydraulic proportion reversing valve 3.2, Hydraulic Pump 7.1, second pressure-compensated valve 4.2, the 3rd check valve 5.3, the 3rd flow-controlling gate 6.3 and second balance cock 2.2 in loop; Loop wherein between secondary hydraulic lifting motor and the second balance cock 2.2 is provided with the second shuttle valve 9.2; Described second shuttle valve 9.2 is also connected with the second hydraulic motor brake 10.2 with the 4th flow-controlling gate 6.4 successively, and the other end of the second hydraulic motor brake 10.2 is connected with secondary hydraulic lifting motor 1.1.
The automatically controlled valve mechanism of described multichannel is four tunnels, and the 3rd road electric control valve mechanism comprises and is connected with left side walk motor with hydraulic pressure 1.3 successively and forms the 4th balance cock 2.4 in loop, the 3rd electro-hydraulic proportion reversing valve 3.3, Hydraulic Pump 7.1, the 3rd pressure-compensated valve 4.3, the 5th check valve 5.5, the 5th flow-controlling gate 6.5 and the 3rd balance cock 2.3; Loop wherein between the 3rd balance cock 2.3 and the 4th balance cock 2.4 is provided with the 3rd shuttle valve 9.3, described 3rd shuttle valve 9.3 is also connected with the 3rd hydraulic motor brake 10.3 with the 6th flow-controlling gate 6.6 successively, and the other end of the 3rd hydraulic motor brake 10.3 is connected with left side walk motor with hydraulic pressure 1.3.
The automatically controlled valve mechanism of described multichannel is four tunnels, and the 4th road electric control valve mechanism comprises and is connected with right side walk motor with hydraulic pressure 1.4 successively and forms the 6th balance cock 2.6 in loop, the 4th electro-hydraulic proportion reversing valve 3.4, Hydraulic Pump 7.1, the 4th pressure-compensated valve 4.4, the 7th check valve 5.7, the 7th flow-controlling gate 6.7 and the 5th balance cock 2.5; Loop wherein between the 5th balance cock 2.5 and the 6th balance cock 2.6 is provided with the 4th shuttle valve 9.4, described 4th shuttle valve 9.4 is also connected with the 4th hydraulic motor brake 10.4 with the 8th flow-controlling gate 6.8 successively, and the other end of the 4th hydraulic motor brake 10.4 is connected with right side walk motor with hydraulic pressure 1.4.
Described Hydraulic Pump 7.1 is connected with by pass valve 8.1, and the other end of by pass valve 8.1 is all communicated with any one electro-hydraulic proportion reversing valve.
7th shuttle valve 9.7 is connected with for the loop of connecting fluid press pump 7.1 with by pass valve 8.1, and the 7th shuttle valve 9.7 is also connected with the 6th shuttle valve 9.6 with the 5th shuttle valve 9.5 respectively; 5th shuttle valve 9.5 is also connected with the 3rd road electric control valve mechanism with the 4th road electric control valve mechanism respectively; 6th shuttle valve 9.6 is also connected with the second road electric control valve mechanism with first via electric control valve mechanism respectively.
Described first pressure-compensated valve 4.1 is connected with the pipeline of second control valve 6.2 with for being connected the first shuttle valve 9.1, and the 6th shuttle valve 9.6 is connected with the pipeline of second control valve 6.2 with for being connected the first pressure-compensated valve 4.1; Described second pressure-compensated valve 4.2 is connected with the pipeline of the 4th flow-controlling gate 6.4 with for being connected the second shuttle valve 9.2, and the 6th shuttle valve 9.6 also with for being connected the second pressure-compensated valve 4.2 is connected with the pipeline of the 4th flow-controlling gate 6.4.
Described 3rd pressure-compensated valve 4.3 is connected with the pipeline of the 6th flow-controlling gate 6.6 with for being connected the 3rd shuttle valve 9.3, and the 5th shuttle valve 9.5 is connected with the pipeline of the 6th flow-controlling gate 6.6 with for being connected the 3rd pressure-compensated valve 4.3; Described 4th pressure-compensated valve 4.4 is connected with the pipeline of the 8th flow-controlling gate 6.6 with for being connected the 4th shuttle valve 9.4, and the 5th shuttle valve 9.5 also with for being connected the 4th pressure-compensated valve 4.4 is connected with the pipeline of the 8th flow-controlling gate 6.8.
Continue referring to figs. 2 and 3, in first via electric control valve mechanism, when the left position of electro-hydraulic proportion reversing valve 3.1 is connected, the main moving loop that hoists is connected, electro-hydraulic proportion reversing valve 3.1 obtains an electric signal, its electromagnet is corresponding under the electric signal effect of this intensity produces an application force, and electro-hydraulic proportion reversing valve 3.1 valve port correspondence produces an openings of sizes.Hydraulic oil in hydraulic circuit under pressure, successively through pressure-compensated valve 4.1, check valve 5.1, first flow control cock 6.1, electro-hydraulic proportion reversing valve 3.1, hydraulic oil opens hydraulic motor brake 10.1 after shuttle valve 9.1 and first flow control cock 6.1, for main hydraulic lifting motor 1.1 work provides prerequisite, hydraulic oil, through balance cock 2.1, promotes main hydraulic lifting motor 1.1 and to have worked the motion that hoists.Hoist weight time, pressure in loop is larger, hydraulic oil arrives the control mouth of pressure-compensated valve 4.1 through shuttle valve 9.1, it is identical that pressure-compensated valve 4.1 regulates the pressure of hydraulic oil herein and the pressure of shuttle valve 9.1 place hydraulic oil to change size, and the difference of pressure namely before and after the first electro-hydraulic proportion reversing valve 3.1 is constant.Now, the openings of sizes of the first electro-hydraulic proportion reversing valve 3.1 valve port does not also change (electrical signal intensity no change-thrust does not become), according to Throttle Principle, in hydraulic circuit, flow would not change, being reacted to mechanical system is exactly that lifting velocity does not change, namely lifting velocity is only relevant with the valve port openings of sizes of electro-hydraulic proportion reversing valve 3.1, and it doesn't matter with the change playing liter weight (in rated range).Therefore, only need control, to the electric signal of the first electro-hydraulic proportion reversing valve 3.1 varying strength, its valve port openings of sizes to be changed, just can realize the change of lifting velocity, also can carry out stepless time adjustment in certain speed range.
Hydraulic oil is successively through the first shuttle valve 9.1, the 6th shuttle valve 9.6, the 7th shuttle valve 9.7, under by pass valve 8.1 (making this branch's pressure be certain fixed value to the maximum) effect, enter Hydraulic Pump 7.1, the uninterrupted of regulator solution press pump 7.1, to adapt to different lifting velocities.
When the meta of the first electro-hydraulic proportion reversing valve 3.1 is connected, lifting mechanism does not move, and suspension hook is parked in when suspension heavy weight in the air.Due to weight effect, do not have pressure on the left of main hydraulic lifting motor 1.1 place, the left-hand branch of the first balance cock 2.1 is not opened by oil circuit control (2.1 left-hand broken line) by hydraulic oil.Main hydraulic lifting motor 1.1 place right atrial pressure is very large, hydraulic oil arrives on the upside of the first balance cock 2.1 under pressure, the left-hand branch of the first balance cock 2.1 is not opened herein, right-hand branch check valve only allows hydraulic oil to flow from bottom to top, therefore, hydraulic oil by the first balance cock 2.1, does not realize locking function, hydraulic efficiency pressure system is static, and the suspension hook weight that plays is parked in the air.
When the right position of the first electro-hydraulic proportion reversing valve 3.1 is connected, lifting mechanism does descending motion, now hydraulic work system principle is similar to upward movement, unlike working connection be hydraulic oil from Hydraulic Pump 7.1 successively through the first pressure-compensated valve 4.1, first check valve 5.1, first flow control cock 6.1 and the first electro-hydraulic proportion reversing valve 3.1, then first on the left of the first balance cock 2.1, the first balance cock 2.1 left-hand branch is opened by oil circuit control, again from the first electro-hydraulic proportion reversing valve 3.1, through main hydraulic lifting motor 1.1, first balance cock 2.1 left-hand branch flows back to fuel tank, hydraulic oil drives main hydraulic lifting motor 1.1 to operate and realizes descending motion, still can realize change or the stepless time adjustment of lifting velocity.
The principle of the second road electric control valve mechanism is identical with first via electric control valve mechanism.
3rd road electric control valve mechanism concrete distinctive points compared with first via electric control valve mechanism is to adds additional the 4th balance cock 2.4, and by the 4th balance cock 2.4 be used for the pipeline be connected between the 3rd balance cock 2.3 and the 3rd shuttle valve 9.3 and be connected, and the 3rd balance cock 2.3 is connected with for the pipeline be connected between the 4th balance cock 2.4 and the 3rd shuttle valve 9.3.In use, the 3rd balance cock 2.3, the 4th balance cock 2.4 are by locked to the rotating forward of left side walk motor with hydraulic pressure 1.3, reverse directions, and after namely dolly stops walking, left side wheel can not be walked by before and after ectocine.
4th road electric control valve mechanism is identical with the 3rd road electric control valve mechanism with principle.
After have employed said structure, this programme uses a motor to drive four HM Hydraulic Motor, does not use reductor, alleviates the burden of dolly, saved resource.When hydraulic oil and mechanical action, there is buffer action, alleviate mechanical vibration.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. the all-hydraulic control cart system of crane in bridge type, is characterized in that, comprising:
There is the dolly of wheel;
Described dolly is provided with the walk motor with hydraulic pressure that power is provided to described wheel;
Described dolly is provided with motor, and the force-output shaft of motor is connected with Hydraulic Pump, and Hydraulic Pump is communicated with the hydraulic reservoir be located in dolly;
The left and right sides of described motor is respectively equipped with main hoisting drum and secondary hoisting drum; Wherein, the end of main hoisting drum is provided with the main HM Hydraulic Motor that hoists; The end of described secondary hoisting drum is provided with pair and hoists HM Hydraulic Motor;
And dolly is provided with hoists the automatically controlled valve mechanism of multichannel of HM Hydraulic Motor and walk motor with hydraulic pressure for controlling hoist HM Hydraulic Motor, pair of described master, the automatically controlled valve mechanism of multichannel is controlled by regulator cubicle.
2. the all-hydraulic control cart system of crane in bridge type according to claim 1, it is characterized in that, the wheel of described dolly comprises left side wheel and right side wheels, walk motor with hydraulic pressure comprises left side walk motor with hydraulic pressure and right side walk motor with hydraulic pressure, and left side walk motor with hydraulic pressure drives left side wheel, right side walk motor with hydraulic pressure drives right side wheels.
3. the all-hydraulic control cart system of crane in bridge type according to claim 2, it is characterized in that, the automatically controlled valve mechanism of described multichannel is four tunnels, and first via electric control valve mechanism comprises and is connected with main hydraulic lifting motor successively and forms first electro-hydraulic proportion reversing valve in loop, Hydraulic Pump, the first pressure-compensated valve, the first check valve, first flow control cock and the first balance cock; Loop wherein between main hydraulic lifting motor and the first balance cock is provided with the first shuttle valve; Described first shuttle valve is also connected with the first hydraulic motor brake with second control valve successively, and the other end of the first hydraulic motor brake and main hydraulic lifting motors lead to.
4. the all-hydraulic control cart system of crane in bridge type according to claim 2, it is characterized in that, the automatically controlled valve mechanism of described multichannel is four tunnels, and the second road electric control valve mechanism comprises and is connected with secondary hydraulic lifting motor successively and forms second electro-hydraulic proportion reversing valve in loop, Hydraulic Pump, the second pressure-compensated valve, the 3rd check valve, the 3rd flow-controlling gate and the second balance cock; Loop wherein between secondary hydraulic lifting motor and the second balance cock is provided with the second shuttle valve; Described second shuttle valve is also connected with the second hydraulic motor brake with the 4th flow-controlling gate successively, and the other end of the second hydraulic motor brake and secondary hydraulic lifting motors lead to.
5. the all-hydraulic control cart system of crane in bridge type according to claim 2, it is characterized in that, the automatically controlled valve mechanism of described multichannel is four tunnels, and the 3rd road electric control valve mechanism comprises and is connected with left side walk motor with hydraulic pressure successively and forms the 4th balance cock in loop, the 3rd electro-hydraulic proportion reversing valve, Hydraulic Pump, the 3rd pressure-compensated valve, the 5th check valve, the 5th flow-controlling gate and the 3rd balance cock; Loop wherein between the 3rd balance cock and the 4th balance cock is provided with the 3rd shuttle valve, described 3rd shuttle valve is also connected with the 3rd hydraulic motor brake with the 6th flow-controlling gate successively, and the other end of the 3rd hydraulic motor brake is connected with left side walk motor with hydraulic pressure.
6. the all-hydraulic control cart system of crane in bridge type according to claim 2, it is characterized in that, the automatically controlled valve mechanism of described multichannel is four tunnels, and the 4th road electric control valve mechanism comprises and is connected with right side walk motor with hydraulic pressure successively and forms the 6th balance cock in loop, the 4th electro-hydraulic proportion reversing valve, Hydraulic Pump, the 4th pressure-compensated valve the 7th check valve, the 7th flow-controlling gate and the 5th balance cock; Loop wherein between the 5th balance cock and the 6th balance cock is provided with the 4th shuttle valve, described 4th shuttle valve is also connected with the 4th hydraulic motor brake with the 8th flow-controlling gate successively, and the other end of the 4th hydraulic motor brake is connected with right side walk motor with hydraulic pressure.
7. the all-hydraulic control cart system of the crane in bridge type according to any one of claim 3-6, it is characterized in that, described Hydraulic Pump is connected with by pass valve, and the other end of by pass valve is all communicated with any one electro-hydraulic proportion reversing valve.
8. the all-hydraulic control cart system of crane in bridge type according to claim 7, is characterized in that, the 7th shuttle valve is connected with the loop of by pass valve with for connecting fluid press pump, and the 7th shuttle valve is also connected with the 6th shuttle valve with the 5th shuttle valve respectively; 5th shuttle valve is also connected with the 3rd road electric control valve mechanism with the 4th road electric control valve mechanism respectively; 6th shuttle valve is also connected with the second road electric control valve mechanism with first via electric control valve mechanism respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520004609.6U CN204416933U (en) | 2015-01-06 | 2015-01-06 | The all-hydraulic control cart system of a kind of crane in bridge type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520004609.6U CN204416933U (en) | 2015-01-06 | 2015-01-06 | The all-hydraulic control cart system of a kind of crane in bridge type |
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| Publication Number | Publication Date |
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| CN204416933U true CN204416933U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520004609.6U Expired - Fee Related CN204416933U (en) | 2015-01-06 | 2015-01-06 | The all-hydraulic control cart system of a kind of crane in bridge type |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104590995A (en) * | 2015-01-06 | 2015-05-06 | 山东丰汇设备技术有限公司 | Full hydraulic control trolley system of bridge crane |
-
2015
- 2015-01-06 CN CN201520004609.6U patent/CN204416933U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104590995A (en) * | 2015-01-06 | 2015-05-06 | 山东丰汇设备技术有限公司 | Full hydraulic control trolley system of bridge crane |
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Granted publication date: 20150624 Termination date: 20180106 |