CN205044522U - Photovoltaic array of shovel washs car caterpillar base plate hydraulic drive device before area - Google Patents
Photovoltaic array of shovel washs car caterpillar base plate hydraulic drive device before area Download PDFInfo
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- CN205044522U CN205044522U CN201520720679.1U CN201520720679U CN205044522U CN 205044522 U CN205044522 U CN 205044522U CN 201520720679 U CN201520720679 U CN 201520720679U CN 205044522 U CN205044522 U CN 205044522U
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Abstract
The utility model belongs to the hydraulic drive device, concretely relates to photovoltaic array of shovel washs car caterpillar base plate hydraulic drive device before area, include the hydraulic tank, hydraulic pump, hydraulic control valve, double speed crawler hydraulic motor and the preceding shovel lift cylinder that connect through the fluid pressure line, hydraulic pump and hydraulic tank intercommunication, the hydraulic pump includes first hydraulic pump and second hydraulic pump, hydraulic control valve shovels the second solenoid valve of flexible first solenoid valve of lift cylinder and the conversion of the high low -speed of control crawler hydraulic motor before walking hydraulic control valve, control, the crawler hydraulic motor and the hydraulic control valve intercommunication of walking, walking hydraulic control valve and second hydraulic pump, hydraulic tank intercommunication. The utility model discloses the high low -speed that can carry out caterpillar base plate traveling speed switches over, sets up simultaneously at the chassis low -speed mode in -process of advancing, and preceding shovel can move wantonly, and nevertheless at the chassis fast mode in -process of advancing, preceding shovel is locked, can not transfer the security working method of action.
Description
Technical field
The utility model relates to a kind of fluid pressure drive device, particularly relates to a kind of for the photovoltaic array cleaning Vehicle crawler body fluid pressure drive device with front shovel.
Background technology
Along with the problems such as global energy shortage, unusual weather conditions and environmental pollution become increasingly conspicuous, actively push forward new forms of energy strategy, quickening new forms of energy are applied, become the common recognition of countries in the world.Solar power enriches as one, clean and reproducible new forms of energy, and it develops alleviating energy crisis, preserves the ecological environment and ensure that sustainable economic development have great and practical meaning.In recent years, solar energy power generating industry presents the impetus developed rapidly under the support of various countries' relevant policies, enters the extensive development stage.
The solar panel of photovoltaic plant is installed with the outdoor inclination of the form of array, and the sand grains in air, dust, foreign material and some corrosive deposits are easy to be attached to its surface.Especially in arid, windy and that vegetation is rare desertificated area, 1 ~ 2 week just can at the full sand and dust of cell panel upper cover, have a strong impact on its photoelectric transformation efficiency, even damage cell panel, therefore, regularly or in good time to solar panel carry out clean just become photovoltaic plant day-to-day operation safeguard in requisite important step.
The European countries such as external especially Italy comparatively early achieve the mechanized cleaning to photovoltaic plant solar panel, by 2011, foreign market have just occurred the independent travelling cleaning Vehicle of multiple different model.The domestic research for independent travelling solar panel cleaning Vehicle sees 2011 the earliest, and in recent years, corresponding patent application and mandate start to increase, and market also start occur conducting promotion to of related products.
Domestic and international existing solar panel cleaning Vehicle many employings crawler type is advanced chassis, its CD-ROM drive motor of advancing mostly is conventional crawler travel HM Hydraulic Motor, function of advancing and speed control method single, the demand of the actual washing and cleaning operation of large area photovoltaic power plant can not be met very well.Indivedual track bottom disc type cleaning Vehicle is also configured with front shovel, for removing the obstacle on operation road surface, but walk and separate between speed handoff functionality in its front shovel elevating function and chassis, without logic control relation between the two oil circuit control, especially cleaning Vehicle is in the high speed traveling process of chassis, if accidentally make front shovel transfer too much and insert ground, then may cause chassis run-off the straight or topple by jack-up, cause serious safety misadventure.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of crawler body fluid pressure drive device that can be used for the band front shovel of solar panel cleaning Vehicle, this device can realize the conversion of speed of travel height low speed, simple to operate, front shovel reliable in action, operate steadily, safety is high, can be applicable to walking operation when the poor large area photovoltaic power plant cell panel of geologic condition cleans preferably.
The utility model is by the following technical solutions:
A kind of photovoltaic array cleaning Vehicle crawler body fluid pressure drive device with front shovel, comprise the hydraulic reservoir, Hydraulic Pump, fluid control valve, two crawler travel HM Hydraulic Motor and the front shovel hoist cylinder that are connected by hydraulic tubing, the oil inlet of Hydraulic Pump is communicated with hydraulic reservoir;
Described crawler travel HM Hydraulic Motor is the double speed crawler travel HM Hydraulic Motor being provided with high low speed conversion and control hydraulic fluid port;
Described Hydraulic Pump comprises the first Hydraulic Pump and the second Hydraulic Pump;
Described fluid control valve comprises walking fluid control valve that control two crawler travel HM Hydraulic Motor rotates, controls the first electromagnetic valve that front shovel hoist cylinder stretches and the second electromagnetic valve controlling the conversion of crawler travel HM Hydraulic Motor height low speed, wherein, first electromagnetic valve is three-position four-way electromagnetic directional valve, and the second electromagnetic valve is two-position four-way solenoid directional control valve;
During the second electromagnetic valve dead electricity, its P mouth is communicated with its B mouth, and its T mouth is communicated with its A mouth, and when it obtains electric, its P mouth is communicated with its A mouth, and its T mouth is communicated with its B mouth;
Two main hydraulic fluid ports of each crawler travel HM Hydraulic Motor are communicated with each self-corresponding actuator port on walking fluid control valve respectively, the oil inlet of walking fluid control valve is communicated with the oil outlet of the second Hydraulic Pump, and the return opening of walking fluid control valve is communicated with hydraulic reservoir;
The A mouth of front shovel hoist cylinder is communicated with B mouth with the A mouth of the first electromagnetic valve respectively with B mouth, and the P mouth of the first electromagnetic valve is communicated with the B mouth of the second electromagnetic valve, and the T mouth of the first electromagnetic valve is communicated with hydraulic reservoir;
The high low speed conversion and control hydraulic fluid port of each crawler travel HM Hydraulic Motor is all communicated with the A mouth of the second electromagnetic valve;
The P mouth of the second electromagnetic valve is communicated with the oil outlet of the first Hydraulic Pump, and the T mouth of the second electromagnetic valve is communicated with hydraulic reservoir.
As optimization, described first Hydraulic Pump and the second Hydraulic Pump assembled in series, form twin pump.
As optimization, described first Hydraulic Pump is gear type pump, and the second Hydraulic Pump is load sensitive pump.
As optimization, the hydraulic tubing between described front shovel hoist cylinder and the first electromagnetic valve is provided with balance cock.
As optimization, the Median Function of the first electromagnetic valve is automatic deloading.
As optimization, described walking fluid control valve is the fabricate block of two proportional reversing valves, and each proportional reversing valve all has two actuator ports, and two proportional reversing valves have common oil inlet and return opening.
As optimization, the delivery line from the first Hydraulic Pump oil outlet to the second electromagnetic valve P mouth is disposed with check valve and by pass valve.
As optimization, the first Hydraulic Pump is communicated with hydraulic reservoir by oil suction filter with the oil inlet of the second Hydraulic Pump, and walking fluid control valve, the first electromagnetic valve are communicated with hydraulic reservoir by oil return filter with the return opening of the second electromagnetic valve.
The beneficial effects of the utility model are: the utility model can carry out the high low speed switching of the crawler body speed of travel according to different operating mode, for the mode of operation of front shovel, set high low speed in front shovel action and chassis traveling process change between subordinate relation, namely in the low-speed mode traveling process of chassis, front shovel can carry out any action, but in the fast mode traveling process of chassis, front shovel is locked, can not carry out transferring action, thus ensure that the safety advanced in work in chassis.
Accompanying drawing explanation
Fig. 1 is the structure composition diagram of the utility model embodiment.
Fig. 2 is photovoltaic array cleaning Vehicle front elevation after the utility model embodiment is installed in photovoltaic array cleaning Vehicle.
Fig. 3 is photovoltaic array cleaning Vehicle lateral plan after the utility model embodiment is installed in photovoltaic array cleaning Vehicle.
In figure: 1-crawler travel HM Hydraulic Motor; 2-front shovel hoist cylinder; 3-walks fluid control valve; 4-balance cock; 5-first electromagnetic valve; 6-second electromagnetic valve; 7-by pass valve; 8-check valve; 9-compression indicator assembly; 10-first Hydraulic Pump; 11-second Hydraulic Pump; 12-driving engine; 13-oil return is filtered; 14-oil suction is filtered; 15-hydraulic reservoir; 16-crawler belt; 17-headstock; 18-front shovel; 19-operator's compartment.
Detailed description of the invention
In order to enable those skilled in the art to better to understand scheme of the present utility model, below in conjunction with accompanying drawing 1 ~ 3 and detailed description of the invention, the utility model is described in further detail.
As shown in Figure 1, a kind of photovoltaic array cleaning Vehicle crawler body fluid pressure drive device with front shovel, comprise the hydraulic reservoir 15, Hydraulic Pump, fluid control valve, two crawler travel HM Hydraulic Motor 1 and the front shovel hoist cylinder 2 that are connected by hydraulic tubing, Hydraulic Pump provides power by driving engine 12, its oil inlet is communicated with hydraulic reservoir 15, front shovel hoist cylinder 2 is hinged between the front shovel 18 of crawler body stem and girder bottom, chassis, is driven the folding and unfolding campaign of front shovel 18 by front shovel hoist cylinder 2.
Above-mentioned crawler travel HM Hydraulic Motor 1 is for being provided with the double speed crawler travel HM Hydraulic Motor of high low speed conversion and control hydraulic fluid port, they are connected with the crawler belt sprocket coaxiality of both sides, crawler belt 16 chassis and are controlled by fluid control valve respectively, the rotation that two crawler travel HM Hydraulic Motor 1 are axle provides rotary power, and then can drive the motion of crawler belt 16.
The high low speed conversion oil circuit that it is crawler travel HM Hydraulic Motor 1 that Hydraulic Pump comprises the first Hydraulic Pump 10 and the second Hydraulic Pump 11, first Hydraulic Pump 10 provides pressure oil-source, and the second Hydraulic Pump 11 provides pressure oil-source for the spinning movement of crawler travel HM Hydraulic Motor 1.In order to increase high efficiency and the accuracy of system, the first Hydraulic Pump 10 and the second Hydraulic Pump 11 are cascaded and form twin pump use, and gear type pump selected by the first Hydraulic Pump 10, and load sensitive pump selected by the second Hydraulic Pump 11.Gear type pump and load sensitive pump are installed in series and use, and form a set of twin pump, both save installing space, in turn ensure that multisystem at the same time mutual when working do not interfere.
Fluid control valve comprises the walking fluid control valve 3 that control two crawler travel HM Hydraulic Motor is rotated, the second electromagnetic valve 6 controlling the first flexible electromagnetic valve 5 of front shovel hoist cylinder 2 and the conversion of control crawler travel HM Hydraulic Motor height low speed.Wherein, the first electromagnetic valve 5 is three-position four-way electromagnetic directional valve, and the second electromagnetic valve 6 is two-position four-way solenoid directional control valve.
Walking fluid control valve 3 is the fabricate block of two proportional reversing valves, and each proportional reversing valve all has two actuator ports, and two proportional reversing valves have common oil inlet and return opening.Two main hydraulic fluid ports of each crawler travel HM Hydraulic Motor 1 are communicated with each self-corresponding actuator port on walking fluid control valve 3 respectively, the oil inlet of walking fluid control valve 3 is communicated with the oil outlet of the second Hydraulic Pump 11, and the return opening of walking fluid control valve 3 is communicated with hydraulic reservoir 15.Two proportional reversing valves in walking fluid control valve 3 all have automatic deloading Median Function, can prevent hydraulic motor travel motor 1 from occurring emptying phenomenon when stopping suddenly.
First electromagnetic valve 5 and the second electromagnetic valve 6 as shown in Figure 1, they include P mouth, A mouth, B mouth, T mouth, when the second electromagnetic valve 6 dead electricity, its P mouth is communicated with its B mouth, and its T mouth is communicated with its A mouth, when it obtains electric, its P mouth is communicated with its A mouth, and its T mouth is communicated with its B mouth.The A mouth of front shovel hoist cylinder 2 is communicated with B mouth with the A mouth of the first electromagnetic valve 5 respectively with B mouth, and the P mouth of the first electromagnetic valve 5 is communicated with the B mouth of the second electromagnetic valve 6, and the T mouth of the first electromagnetic valve 5 is communicated with hydraulic reservoir 15; The high low speed conversion and control hydraulic fluid port of each crawler travel HM Hydraulic Motor 1 is all communicated with the A mouth of the second electromagnetic valve 6; The P mouth of the second electromagnetic valve 6 is communicated with the oil outlet of the first Hydraulic Pump, and the T mouth of the second electromagnetic valve 6 is communicated with hydraulic reservoir.The Median Function of the first above-mentioned electromagnetic valve 5 is automatic deloading.
Hydraulic tubing between front shovel hoist cylinder 2 and the first electromagnetic valve 5 is provided with balance cock 4, balance cock 4 prioritizing selection Bidirectional balanced valve.
For increasing the safety performance of oil circuit, check valve 8 and by pass valve 7 is disposed with from the first Hydraulic Pump 10 oil outlet to the delivery line of the P mouth of the second electromagnetic valve 6, on pipeline simultaneously between the second electromagnetic valve 6 with the first Hydraulic Pump 10 and two Reference numerals 9 pipeline of walking between fluid control valve 3 and the second Hydraulic Pump 11 all being arranged compression indicator assembly 9(accompanying drawing refer to the compression indicator assembly being arranged on diverse location that two have phase same-action), compression indicator assembly comprises compression indicator and pressure meter switch, the oil liquid pressure value that by pass valve regulates can show in compression indicator.The preferred board-like direct acting type of by pass valve 7.
First Hydraulic Pump 10 is communicated with hydraulic reservoir 15 by oil suction filter 14 with the oil inlet of the second Hydraulic Pump 11, and walking fluid control valve 3, first electromagnetic valve 5 is communicated with hydraulic reservoir 15 by oil return filter 13 with the return opening of the second electromagnetic valve 6.
When using in cleaning Vehicle to make system, the entire arrangement of each device has more safety, the first Hydraulic Pump 10 in system and the second Hydraulic Pump 11 are arranged in headstock 17, headstock 17 can be arranged on cleaning Vehicle rear positions, driving engine 12 and transmission gearbox is provided with in headstock 17, transmission gearbox one end is connected with driving engine 12, and the other end is connected with the second Hydraulic Pump 11.
Simultaneously in detailed description of the invention more of the present utility model; walking fluid control valve 3, balance cock 4, first electromagnetic valve 5, second electromagnetic valve 6, by pass valve 7, check valve 8 and compression indicator assembly 9 above are all arranged at operator's compartment 19 inside, while being convenient to driver's operation and maintenance, to steerman and each balancing boom device, there is certain protective effect again.
The utility model can be divided into again front shovel control system, high low speed walking switching control system and traveling control system from the angle of systemic-function.
Front shovel control system mainly comprises front shovel 18, front shovel hoist cylinder 2, Bidirectional balanced valve 4, first electromagnetic valve 5, by pass valve 7, check valve 8, first Hydraulic Pump 10, oil suction filter 14, oil return filter 13 and respective line annex.
The principle of work of front shovel control system is as follows: the first Hydraulic Pump 10 does revolution action under the effect of driving engine 12, and hydraulic oil is pumped, the hydraulic oil pumped exports constant setting pressure oil after by pass valve 7 pressure regulation, pressure oil enters rodless cavity or the rod chamber of front shovel hoist cylinder 2 by the first electromagnetic valve 5 and Bidirectional balanced valve 4, the rodless cavity of what if pressure oil entered is front shovel hoist cylinder 2, then the piston rod of front shovel hoist cylinder 2 stretches out, and what realize front shovel 18 transfers action; The rod chamber of what if pressure oil entered is front shovel hoist cylinder 2, then the piston rod of front shovel hoist cylinder 2 is retracted, and realizes the upper receipts action of front shovel 18.The Bidirectional balanced valve 4 that front shovel control system hydraulic branch is arranged, is convenient to front shovel 18 and can has certain pressure maintaining effect to front shovel hoist cylinder 2 again while held stationary action in the course of the work.
High low speed walking switching control system mainly comprises crawler travel HM Hydraulic Motor 1, second electromagnetic valve 6, by pass valve 7, check valve 8, first Hydraulic Pump 10, oil suction filter 14, oil return filter 13 and respective line annex.Crawler travel HM Hydraulic Motor 1 inside is provided with discharge capacity regulating control, and the double speed that can be realized this hydraulic motor travel motor 1 speed of travel by the action of high low speed walking switching control system is changed.
The principle of work of high low speed walking switching control system is as follows: the first Hydraulic Pump 10 does revolution action under the effect of driving engine 12, and hydraulic oil is pumped, the hydraulic oil pumped exports constant pressure oil after by pass valve 7 pressure regulation, pressure oil enters the height speed control port of crawler travel HM Hydraulic Motor 1 by the second electromagnetic valve 6, change the hydraulic displacement of crawler travel HM Hydraulic Motor 1, thus make car body according to advancing at a high speed.
In above-mentioned control process, the high low speed of hydraulic motor travel motor 1 switches the shared by pass valve 7 of oil circuit control of oil circuit and front shovel oil cylinder 2.
Front shovel control system and high low speed walking switching control system have corresponding subordinate relation, namely the argument action of crawler travel HM Hydraulic Motor 1 is not by the constraint of front shovel hoist cylinder 2 action, and the action of front shovel hoist cylinder 2 is subject to the restriction of crawler travel HM Hydraulic Motor 1 high low speed walking switching motion, specific works principle is as follows: the first electromagnetic valve 5 controlling the action of front shovel hoist cylinder 2 for meta be the three-position valve of automatic deloading function, the second electromagnetic valve 6 that the high low speed of control crawler travel HM Hydraulic Motor 1 is changed is two-position valve, under the second electromagnetic valve 6 and the equal power failure state of the first electromagnetic valve 5, second electromagnetic valve 6 and the first electromagnetic valve 5 are for being connected in series, now pressure oil is first by the meta again by the first electromagnetic valve 5 behind the second left position of electromagnetic valve 6, hydraulic reservoir 15 is got back to through associated pipe, now crawler travel HM Hydraulic Motor 1 is low speed travel condition, first electromagnetic valve 5 obtains electric in one end arbitrarily, pressure oil directly drives front shovel hoist cylinder 2 action by this first electromagnetic valve 5, when the second electromagnetic valve 6 obtains electric, when namely implementing crawler travel HM Hydraulic Motor 1 from low speed to high-speed transitions, first electromagnetic valve 5 oil circuit is cut off, front shovel hoist cylinder 2 can not do any action, now pressure oil enters the high low speed conversion oil circuit of crawler travel HM Hydraulic Motor 1 by the second electromagnetic valve 6, and crawler body is converted to high speed travel condition.Namely, this crawler body can be driven arbitrarily at work to advance with high speed or low speed, but front shovel hoist cylinder 2 can only be driven under the operating mode of crawler body low speed to drive front shovel 18 to carry out transferring action, crawler body cannot drive front shovel 18 to carry out transferring action when advancing at a high speed, only change into when low speed is advanced in the gait of march of photovoltaic array cleaning Vehicle crawler body and could realize front shovel 18 action, thus avoid the misoperation of front shovel 18 when crawler body is advanced at a high speed, improve the safety in operation of photovoltaic array cleaning Vehicle crawler body.
Traveling control system mainly comprises crawler travel HM Hydraulic Motor 1, walking fluid control valve 3, second Hydraulic Pump 11, oil suction filter 14, oil return filter 13 and relevant hydraulic tubing annex.
The principle of work of traveling control system is as follows: the second Hydraulic Pump 11 does revolution action under the effect of driving engine 12, and hydraulic oil is pumped, the hydraulic oil pumped enters in crawler travel HM Hydraulic Motor 1 after the pressure regulating valve that walking fluid control valve 3 carries carries out pressure adjustment, crawler travel HM Hydraulic Motor 1 is driven to rotate, crawler travel HM Hydraulic Motor 1 drives crawler belt 16 to make gyroscopic movement again, thus drives car load to move.Crawler travel HM Hydraulic Motor 1 inside is provided with Bidirectional balanced valve and brake system simultaneously, is convenient to keep car body invariant position when car body stops at level land, hillside fields.
The utility model can carry out the high low speed conversion of the crawler body speed of travel, in the low speed traveling process of chassis, front shovel can be transferred arbitrarily and upper receipts action, but in the fast mode traveling process of chassis, front shovel is locked, can not carry out transferring action, thus ensure that the safety advanced in work in chassis.
The illustrative embodiments that above embodiment is only used to principle of the present utility model is described and adopts, but the utility model is not limited thereto.For those skilled in the art, when not departing from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement are also considered as protection domain of the present utility model.
Claims (8)
1. the photovoltaic array cleaning Vehicle crawler body fluid pressure drive device with front shovel, comprise the hydraulic reservoir, Hydraulic Pump, fluid control valve, two crawler travel HM Hydraulic Motor and the front shovel hoist cylinder that are connected by hydraulic tubing, the oil inlet of Hydraulic Pump is communicated with hydraulic reservoir, it is characterized in that:
Described crawler travel HM Hydraulic Motor is the double speed crawler travel HM Hydraulic Motor being provided with high low speed conversion and control hydraulic fluid port;
Described Hydraulic Pump comprises the first Hydraulic Pump and the second Hydraulic Pump;
Described fluid control valve comprises walking fluid control valve that control two crawler travel HM Hydraulic Motor rotates, controls the first electromagnetic valve that front shovel hoist cylinder stretches and the second electromagnetic valve controlling the conversion of crawler travel HM Hydraulic Motor height low speed, wherein, first electromagnetic valve is three-position four-way electromagnetic directional valve, and the second electromagnetic valve is two-position four-way solenoid directional control valve;
During the second electromagnetic valve dead electricity, its P mouth is communicated with its B mouth, and its T mouth is communicated with its A mouth, and when it obtains electric, its P mouth is communicated with its A mouth, and its T mouth is communicated with its B mouth;
Two main hydraulic fluid ports of each crawler travel HM Hydraulic Motor are communicated with each self-corresponding actuator port on walking fluid control valve respectively, the oil inlet of walking fluid control valve is communicated with the oil outlet of the second Hydraulic Pump, and the return opening of walking fluid control valve is communicated with hydraulic reservoir;
The A mouth of front shovel hoist cylinder is communicated with B mouth with the A mouth of the first electromagnetic valve respectively with B mouth, and the P mouth of the first electromagnetic valve is communicated with the B mouth of the second electromagnetic valve, and the T mouth of the first electromagnetic valve is communicated with hydraulic reservoir;
The high low speed conversion and control hydraulic fluid port of each crawler travel HM Hydraulic Motor is all communicated with the A mouth of the second electromagnetic valve;
The P mouth of the second electromagnetic valve is communicated with the oil outlet of the first Hydraulic Pump, and the T mouth of the second electromagnetic valve is communicated with hydraulic reservoir.
2. the photovoltaic array cleaning Vehicle crawler body fluid pressure drive device of band front shovel according to claim 1, is characterized in that: described first Hydraulic Pump and the second Hydraulic Pump assembled in series, forms twin pump.
3. the photovoltaic array cleaning Vehicle crawler body fluid pressure drive device of band front shovel according to claim 1, it is characterized in that: described first Hydraulic Pump is gear type pump, the second Hydraulic Pump is load sensitive pump.
4. the photovoltaic array cleaning Vehicle crawler body fluid pressure drive device of band front shovel according to claim 1, is characterized in that: the hydraulic tubing between described front shovel hoist cylinder and the first electromagnetic valve is provided with balance cock.
5. the photovoltaic array cleaning Vehicle crawler body fluid pressure drive device of band front shovel according to claim 1, is characterized in that: the Median Function of the first electromagnetic valve is automatic deloading.
6. the photovoltaic array cleaning Vehicle crawler body fluid pressure drive device of band front shovel according to claim 1, it is characterized in that: described walking fluid control valve is the fabricate block of two proportional reversing valves, each proportional reversing valve all has two actuator ports, and two proportional reversing valves have common oil inlet and return opening.
7. the photovoltaic array cleaning Vehicle crawler body fluid pressure drive device of band front shovel according to claim 1, is characterized in that: the delivery line from the first Hydraulic Pump oil outlet to the second electromagnetic valve P mouth is disposed with check valve and by pass valve.
8. the photovoltaic array cleaning Vehicle crawler body fluid pressure drive device of band front shovel according to claim 1, it is characterized in that: the first Hydraulic Pump is communicated with hydraulic reservoir by oil suction filter with the oil inlet of the second Hydraulic Pump, walking fluid control valve, the first electromagnetic valve are communicated with hydraulic reservoir by oil return filter with the return opening of the second electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520720679.1U CN205044522U (en) | 2015-09-17 | 2015-09-17 | Photovoltaic array of shovel washs car caterpillar base plate hydraulic drive device before area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520720679.1U CN205044522U (en) | 2015-09-17 | 2015-09-17 | Photovoltaic array of shovel washs car caterpillar base plate hydraulic drive device before area |
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| Publication Number | Publication Date |
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| CN205044522U true CN205044522U (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520720679.1U Expired - Fee Related CN205044522U (en) | 2015-09-17 | 2015-09-17 | Photovoltaic array of shovel washs car caterpillar base plate hydraulic drive device before area |
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| CN (1) | CN205044522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112655696A (en) * | 2020-12-21 | 2021-04-16 | 正从科技(上海)有限公司 | Multi-work maintenance robot based on artificial intelligence and maintenance method |
-
2015
- 2015-09-17 CN CN201520720679.1U patent/CN205044522U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112655696A (en) * | 2020-12-21 | 2021-04-16 | 正从科技(上海)有限公司 | Multi-work maintenance robot based on artificial intelligence and maintenance method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170830 Address after: 450001 No. 311 science Avenue, hi tech Zone, Henan, Zhengzhou Patentee after: HAIWEI ZHENGZHOU HIGH TECHNOLOGY Co.,Ltd. Address before: Beijing Guangzhou road 450015 Henan city of Zhengzhou province No. 126 Patentee before: 713TH Research Institute OF CSIC |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20210917 |