CN203044776U - Closed loop for traveling of forging manipulator - Google Patents
Closed loop for traveling of forging manipulator Download PDFInfo
- Publication number
- CN203044776U CN203044776U CN 201220347318 CN201220347318U CN203044776U CN 203044776 U CN203044776 U CN 203044776U CN 201220347318 CN201220347318 CN 201220347318 CN 201220347318 U CN201220347318 U CN 201220347318U CN 203044776 U CN203044776 U CN 203044776U
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- China
- Prior art keywords
- closed circuit
- oil
- way proportional
- proportional variable
- hydraulic motor
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Abstract
The utility model relates to a hydraulic transmission control system, in particular to a closed loop for the traveling of a forging manipulator. The closed loop at least comprises a two-way proportional variable displacement pump, hydraulic motors, a proportional operating handle, an electric control system and a motor, and is characterized in that the oil outlet of the two-way proportional variable displacement pump is directly connected in series with the oil inlets of the hydraulic motors through a pipeline, the oil outlets of the hydraulic motors are directly connected in series with the oil suction inlet of the two-way proportional variable displacement pump through a pipeline, and therefore the closed loop is formed; and the proportional operating handle is electrically connected with the electric control system. By means of the electric control system, the proportional operating handle can control the oil inflow direction, oil outflow direction and flow of the two-way proportional variable displacement pump, so that the rotational direction and speed of the hydraulic motors are controlled. The closed loop changes the conventional method of controlling the hydraulic motors with valves, and directly controls the flow and rotational direction of the hydraulic motors, thus controlling the traveling speed and direction of the manipulator.
Description
Technical field
The utility model relates to hydraulic transmission control system, belongs to the all-hydraulic track forging manipulator walking enclosed control system that has, and is a kind of forging manipulator walking closed circuit.
Background technology
The front and back walking of forging manipulator is realized by the transmission on tooth bar of fluid motor-driven pin wheel, hydraulic motor is controlled its direction by reversal valve, and speed is regulated by flow system flow, because the weight of forging manipulator own is big, movement inertia is big, make impact when manipulator stops to commutate with front and back big; Especially for the large-sized forging manipulator, because the big inertia of its moving-mass is bigger, impact greatlyyer during the motion conversion, stop distance is long, and control accuracy is low, has a strong impact on efficiency of equipment.
Summary of the invention
The purpose of this utility model provides a kind of forging manipulator walking closed circuit, changed the mode of traditional valve control hydraulic motor, flow and pressure outbound course by control two-way proportional variable pump, the direct flow of control hydraulic motor and turning to, thus realize control to the speed of travel and the direction of manipulator.
The technical solution of the utility model is a kind of forging manipulator walking closed circuit, which comprises at least two-way proportional variable pump, hydraulic motor, operation sequential handle, electric control system and motor, it is characterized in that: the oil-out of two-way proportional variable pump is directly connected by pipeline with the oil-in of hydraulic motor, the oil-out of hydraulic motor is directly connected by pipeline with the inlet port of two-way proportional variable pump, forms closed circuit; The operation sequential handle is electrically connected with electric control system.
Described manipulator walking closed circuit also comprises fuel tank, first overflow valve, second overflow valve and auxiliary pump, and auxiliary pump is communicated with fuel tank, first overflow valve, and inserts in the whole closed circuit, and two second overflow valves directly are connected into closed circuit.
One end of described auxiliary pump is communicated with cooler, filter and check valve, and the other end of auxiliary pump is communicated with fuel tank, first overflow valve and check valve.
Described manipulator walking closed circuit also comprises pilot operated directional control valve, and pilot operated directional control valve directly is connected into closed circuit, and is communicated with first overflow valve.
Characteristics of the present utility model are that this forging manipulator walking closed circuit is by flow and the pressure outbound course of control two-way proportional variable pump, directly control the rotating speed of hydraulic motor and turn to, thereby realize control to the speed of travel and the direction of forging manipulator; It goes back flow and the direction of passing ratio operating grip control two-way proportional variable pump, makes that hydraulic motor rotary speed and direction hypermetamorphosis are steady, has greatly reduced compression shock and vibration, has improved equipment life.
Description of drawings
Be further described below in conjunction with the utility model of embodiment.
Fig. 1 is a kind of principle schematic of novel forging manipulator walking closed circuit.
Among the figure: 1, two-way proportional variable pump; 2, fuel tank; 3, auxiliary pump; 4, first overflow valve; 5, pilot operated directional control valve; 6, hydraulic motor; 7, second overflow valve; 8, check valve; 9, cooler; 10, filter; 11, operation sequential handle; 12, electric control system; 13, motor.
The specific embodiment
Embodiment 1
A kind of forging manipulator walking closed circuit, which comprises at least two-way proportional variable pump 1, hydraulic motor 6, operation sequential handle 11, electric control system 12 and motor 13, hydraulic motor 6 is by driving the front and back walking of the pin wheel realization forging manipulator on tooth bar, motor 13 drives two-way proportional variable pump 1, the oil-out of two-way proportional variable pump 1 is directly connected by pipeline with the oil-in of hydraulic motor 6, the oil-out of hydraulic motor 6 is directly connected by pipeline with the inlet port of two-way proportional variable pump 1, forms closed circuit; Operation sequential handle 11 is electrically connected with electric control system 12.Operation sequential handle 11 is by direction and the flow of electric control system 12 control two-way proportional variable pumps 1 into and out of oil, and then direction of rotation and the speed of control hydraulic motor 6.
Embodiment 2
As shown in Figure 1, the front and back walking of forging manipulator is realized by the transmission on tooth bar of fluid motor-driven pin wheel, the pressure oil of hydraulic motor is provided by two-way proportional variable pump 1, the hydraulic fluid port of two-way proportional variable pump 1 and hydraulic motor 6 is directly connected through piping, the oil-out of proportional variable pump 1 connects the oil-in of hydraulic motor 6, hydraulic motor 6 oil-outs connect the inlet port of two-way proportional variable pump 1, form closed circuit.
Hydraulic motor 6 has two, is communicated with two hydraulic motor 6 common walkings that drive forging manipulator respectively with two-way proportional variable pump 1.Two-way proportional variable pump 1 normal condition drives hydraulic motor 6 forward rotation, the walking of manipulator forward, and when the oil-out of two-way proportional variable pump 1 and inlet port were reverse, hydraulic motor 6 is backward rotation also, realized that manipulator oppositely walks.
Operation sequential handle 11 is controlled two-way proportional variable pump 1 oil inlet and outlet direction and flow by electric control system 12, thereby control hydraulic motor 6 direction of rotation and speed, be direction of travel and the speed of manipulator, the control of passing ratio operating grip 11 and electric control system 12 makes hydraulic motor 6 direction of rotation and velocity variations excessively steady, has greatly reduced compression shock and vibration.
Auxiliary pump 3 is all driven by motor 13 with two-way proportional variable pump 1, one end of auxiliary pump 3 is communicated with cooler 9, filter 10 and check valve 8, the other end of auxiliary pump 3 is communicated with fuel tank 2, first overflow valve 4 and check valve 8, and in the whole closed circuit of all connecting, two second overflow valves 7 directly are connected into closed circuit.
The loss of hydraulic oil is mainly let out in two-way proportional variable pump 1 and the hydraulic motor 6 and the overflow of manipulator overload or vexed Che Shicong first overflow valve 4 and second overflow valve 7 in the loop, all system's drainings are all got back in the fuel tank 2, added in the closed circuit by auxiliary pump 3 again, guarantee the oil mass of closed circuit.
Auxiliary pump 3 provides outer governor pressure for two-way proportional variable pump 1, and filter cooling for whole loop and give the loop repairing through subcooler 9 and filter 10, the effect of isolating when check valve 8 plays repairing, overflow valve 4 is used for adjusting oil compensation pressure, and overflow valve 7 is used for adjusting circuit pressure.
Pilot operated directional control valve 5 directly is connected into system circuit, and is communicated with first overflow valve 4, and pilot operated directional control valve 5 and first overflow valve 4 provide protection when the vexed car in loop.
In whole loop, most of hydraulic oil closed circulation in two-way proportional variable pump 1 and hydraulic motor 6 and pipeline is used, the loss of hydraulic oil is mainly let out in two-way proportional variable pump 1 and the hydraulic motor 6 and the overflow of manipulator overload or vexed Che Shicong first overflow valve 4 and second overflow valve 7 in the loop, all loop drainings are all got back in the fuel tank 2, added in the closed circuit by auxiliary pump 3 again, guarantee the oil mass of closed circuit.
All kinds of valves in the whole loop, pump etc. all are directly to connect by common conduit under fluid pressure to connect, and electric control system 12 is realizing that the commutation function of two-way proportional variablees 1 is as the criterion, and does not do special requirement at this by passing ratio operating grip 11.
This novel forging manipulator walking closed circuit is by flow and the pressure outbound course of control two-way proportional variable pump, the rotating speed of directly controlling hydraulic motor with turn to, thereby realization is to the control of the speed of travel and the direction of forging manipulator; It goes back flow and the direction of passing ratio operating grip control two-way proportional variable pump, makes that hydraulic motor rotary speed and direction hypermetamorphosis are steady, has greatly reduced compression shock and vibration, has improved equipment life.
The parts that present embodiment is not described in detail and structure belong to well-known components and common structure or the conventional means of the industry, here not narration one by one.
Claims (4)
1. forging manipulator walking closed circuit, which comprises at least two-way proportional variable pump (1), hydraulic motor (6), operation sequential handle (11), electric control system (12) and motor (13), it is characterized in that: the oil-out of two-way proportional variable pump (1) is directly connected by pipeline with the oil-in of hydraulic motor (6), the oil-out of hydraulic motor (6) is directly connected by pipeline with the inlet port of two-way proportional variable pump (1), forms closed circuit; Operation sequential handle (11) is electrically connected with electric control system (12).
2. according to a kind of forging manipulator walking closed circuit described in the claim 1, it is characterized in that: described manipulator walking closed circuit also comprises fuel tank (2), first overflow valve (4), second overflow valve (7) and auxiliary pump (3), auxiliary pump (3) is communicated with fuel tank (2), first overflow valve (4), and insert in the whole closed circuit, two second overflow valves (7) directly are connected into closed circuit.
3. according to a kind of forging manipulator walking closed circuit described in the claim 2, it is characterized in that: an end of described auxiliary pump (3) is communicated with cooler (9), filter (10) and check valve (8), and the other end of auxiliary pump (3) is communicated with fuel tank (2), first overflow valve (4) and check valve (8).
4. according to a kind of forging manipulator walking closed circuit described in the claim 1, it is characterized in that: described manipulator walking closed circuit also comprises pilot operated directional control valve (5), pilot operated directional control valve (5) directly is connected into closed circuit, and is communicated with first overflow valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347318 CN203044776U (en) | 2012-07-18 | 2012-07-18 | Closed loop for traveling of forging manipulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347318 CN203044776U (en) | 2012-07-18 | 2012-07-18 | Closed loop for traveling of forging manipulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203044776U true CN203044776U (en) | 2013-07-10 |
Family
ID=48727773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220347318 Expired - Fee Related CN203044776U (en) | 2012-07-18 | 2012-07-18 | Closed loop for traveling of forging manipulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203044776U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108583680A (en) * | 2018-04-03 | 2018-09-28 | 安徽合力股份有限公司 | A kind of full-hydraulic forklift independent steering system |
| CN113958543A (en) * | 2021-09-27 | 2022-01-21 | 太原重工股份有限公司 | Traveling mechanism control system and control method thereof |
-
2012
- 2012-07-18 CN CN 201220347318 patent/CN203044776U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108583680A (en) * | 2018-04-03 | 2018-09-28 | 安徽合力股份有限公司 | A kind of full-hydraulic forklift independent steering system |
| CN108583680B (en) * | 2018-04-03 | 2024-01-09 | 安徽合力股份有限公司 | Independent steering system of full hydraulic forklift |
| CN113958543A (en) * | 2021-09-27 | 2022-01-21 | 太原重工股份有限公司 | Traveling mechanism control system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20130710 Termination date: 20180718 |