CN215762516U - Multi-path hydraulic electric control system of tractor - Google Patents
Multi-path hydraulic electric control system of tractor Download PDFInfo
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- CN215762516U CN215762516U CN202122002393.8U CN202122002393U CN215762516U CN 215762516 U CN215762516 U CN 215762516U CN 202122002393 U CN202122002393 U CN 202122002393U CN 215762516 U CN215762516 U CN 215762516U
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Abstract
The utility model discloses a multi-path hydraulic electric control system of a tractor, which comprises a hydraulic oil block, a pressure retaining valve, a throttle valve, a one-way electromagnetic valve and an electromagnetic valve, wherein an upper computer calculates whether a hydraulic cylinder needs to be extended or retracted, the electromagnetic valve is controlled by an electric signal, the electromagnetic valve controls the flow direction of hydraulic oil by controlling an internal oil path switch, so as to control the extension or retraction of the hydraulic cylinder, the throttle valve positioned below the electromagnetic valve can respectively control the extension or retraction speed of each path of hydraulic cylinder through the throttle valve, so that more accurate control is achieved, and the pressure retaining valve positioned above the hydraulic oil block can enable the position of the hydraulic cylinder to be kept unchanged when the hydraulic cylinder is acted by external force. The utility model realizes that one set of hydraulic system controls the multi-path hydraulic cylinder to work normally at the same time, and improves the working efficiency of the hydraulic system.
Description
Technical Field
The utility model relates to the technical field of agricultural automatic driving, in particular to a multi-path hydraulic electric control system of a tractor.
Background
The tractor hydraulic system is a general name for converting partial power of an engine into hydraulic energy to operate a tractor and hydraulic elements of working parts of matched agricultural implements, generally, the tractor hydraulic system is a circulating hydraulic oil circuit consisting of a hydraulic pump, a hydraulic cylinder, a distributor and an auxiliary device, and the hydraulic system is controlled by an operating mechanism to enable the tractor to be in various states so as to meet the action requirements of various machines. The traditional tractor hydraulic system only can control a single hydraulic cylinder to normally work by using one hydraulic system, cannot control a plurality of hydraulic cylinders simultaneously, and is mainly manually controlled.
SUMMERY OF THE UTILITY MODEL
The utility model provides a multi-path hydraulic electric control system for a tractor, which solves the problem that the existing tractor hydraulic system can only control a single hydraulic cylinder to work and is mostly controlled manually.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a tractor multichannel hydraulic pressure electrical system, includes hydraulic oil piece, pressure retaining valve, choke valve, one way solenoid valve and solenoid valve, and is a plurality of the pressure retaining valve is installed in proper order hydraulic oil piece upper surface, and is a plurality of the choke valve is installed in proper order the pressure retaining valve top, the choke valve with the pressure retaining valve corresponds respectively, the choke valve is used for controlling the velocity of flow of hydraulic oil, one way solenoid valve is located hydraulic oil piece upper surface, just one way solenoid valve is located pressure retaining valve one side, and is a plurality of the solenoid valve is located the choke valve upper end, the solenoid valve with the choke valve corresponds respectively, one way solenoid valve is equipped with a plurality of cartridge holes with the solenoid valve surface, the solenoid valve receives electric signal control, through control hydraulic oil flow direction, and then the flexible of control pneumatic cylinder.
Preferably, the side surface of the hydraulic oil block is provided with an oil inlet and an oil outlet, the front surface of the hydraulic oil block is provided with a plurality of first oil ports and second oil ports, and the first oil ports are sequentially arranged above the second oil ports.
Preferably, a first socket is arranged above the one-way solenoid valve.
Preferably, solenoid valve one side is equipped with the second socket, and the opposite side is equipped with the third socket, just second socket and third socket are located respectively hydraulic oil block's tow sides.
Preferably, the one-way electromagnetic valve is used for controlling to switch on or switch off the oil inlet and the oil outlet.
Preferably, the electromagnetic valves respectively and correspondingly control the clutch, the direction, the left brake, the right brake and the auxiliary clutch.
Preferably, the pressure retaining valve is used for preventing the first oil port and the second oil port from returning.
Preferably, the one-way solenoid valve and the solenoid valve are fastened with the hydraulic oil block through bolts arranged in the insertion holes.
Preferably, the hydraulic oil block is made of metal.
Compared with the prior art, the utility model has the beneficial effects that: the hydraulic cylinder control system can realize that one set of hydraulic system can control multiple hydraulic cylinders to work normally at the same time without mutual influence, and compared with the traditional hydraulic cylinder control system which can only control a single hydraulic cylinder, the hydraulic cylinder control system can greatly improve the working efficiency; the utility model is totally controlled by the electromagnetic valve, is controlled automatically by electrons, can control the extension or the shortening of the hydraulic cylinder by using electronic signals, provides a bottom layer guarantee for unmanned driving, enables a computer to be controlled more conveniently, and provides a bottom layer foundation for a full-automatic unmanned tractor; the throttle valve is adopted to control the movement speed of the hydraulic cylinder, so that the hydraulic cylinder can adapt to more scenes; the utility model adopts the pressure retaining valve to keep the position of the hydraulic cylinder from changing due to external force, thereby greatly improving the safety and the accuracy of the system.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.
In the drawings:
FIG. 1 is a schematic diagram of the hydraulic electronic control system of the present invention;
FIG. 2 is a front view of the hydraulic electronic control system of the present invention;
FIG. 3 is a hydraulic port diagram of the hydraulic electronic control system of the present invention;
FIG. 4 is a circuit interface diagram of a solenoid valve of the hydraulic electronic control system of the present invention;
reference numbers in the figures: 1. a hydraulic oil block; 2. a pressure retaining valve; 3. a throttle valve; 4. a one-way solenoid valve; 5. an electromagnetic valve; 6. inserting holes; 7. an oil inlet; 8. an oil outlet; 9. a first oil port; 10. a second oil port; 11. a first socket; 12. a second socket; 13. and a third socket.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1-2, a multi-path hydraulic electric control system for a tractor comprises a hydraulic oil block 1, a pressure retaining valve 2, a throttle valve 3, a one-way solenoid valve 4 and a solenoid valve 5, in this embodiment, the hydraulic oil block 1 is a six-path hydraulic oil block 1, an oil inlet 7 and an oil outlet 8 are arranged on the side surface of the hydraulic oil block 1, a plurality of first oil ports 9 and second oil ports 10 are arranged on the front surface of the hydraulic oil block 1, in this embodiment, the first oil ports 9 and the second oil ports 10 are respectively provided with six groups of oil ports, the first oil ports 9 are sequentially arranged above the second oil ports 10, the hydraulic oil block 1 is made of metal, the pressure retaining valves 2 are sequentially mounted on the upper surface of the hydraulic oil block 1, the pressure retaining valves 2 are used for preventing the first oil ports 9 and the second oil ports 10 from flowing back, the throttle valves 3 are sequentially mounted above the pressure retaining valves 2, the throttle valve 3 corresponds to the pressure retaining valve 2 respectively, the throttle valve 3 is used for controlling the flow rate of hydraulic oil, the one-way solenoid valve 4 is located on the upper surface of the hydraulic oil block 1, the one-way solenoid valve 4 is located on one side of the pressure retaining valve 2, a first socket 11 is arranged above the one-way solenoid valve 4, the one-way solenoid valve 4 is used for controlling connection or disconnection of an oil inlet 7 and an oil outlet 8, the solenoid valves 5 are located at the upper end of the throttle valve 3, the solenoid valves 5 correspond to the throttle valve 3 respectively, a second socket 12 is arranged on one side of the solenoid valve 5, a third socket 13 is arranged on the other side of the solenoid valve 5, the second socket 12 and the third socket 13 are located on the front and back sides of the hydraulic oil block 1 respectively, a plurality of inserting holes 6 are arranged on the surfaces of the one-way solenoid valve 4 and the solenoid valve 5, and the one- way solenoid valves 4 and 5 are fastened with the hydraulic oil block 1 through bolts arranged in the inserting holes 6, the electromagnetic valves 5 are controlled by electric signals, the hydraulic cylinder is controlled to stretch and retract by controlling the flow direction of hydraulic oil, and the electromagnetic valves 5 correspondingly control the clutch, the direction, the left brake, the right brake and the auxiliary clutch respectively.
When the hydraulic control system is used, a five-way electromagnetic valve 5, a throttle valve 3 and a pressure retaining valve 2 are arranged on the six-way hydraulic oil block 1 and used for controlling the extension or the contraction of the five hydraulic cylinders.
In one embodiment, as shown in fig. 3, when all the connectors are not powered, the oil inlet 7 and the oil outlet 8 are communicated with the oil inlet 7 through the one-way solenoid valve 4 to be connected with the oil outlet 8 of the hydraulic pump, and the oil outlet 8 is connected with the oil tank. When not powered on, hydraulic oil enters the oil inlet 7 through the oil pump, flows into the oil outlet 8 through the one-way solenoid valve 4, flows out of the six-way hydraulic oil block 1 and flows back to the oil tank.
In one embodiment, as shown in fig. 4, when any one of the two ways is used, the first socket 11 or the second socket 12 is connected, and the third socket 13 is connected, so that hydraulic oil will enter from the oil inlet 7, since the third socket 13 is connected to the oil inlet 7 and the oil outlet 8, the connection will be disconnected, when the first socket 11 is connected, the oil inlet 7 will be connected to the first oil port 9, the oil outlet 8 will be connected to the second oil port 10, hydraulic oil is pumped into the hydraulic oil block 1 through the oil inlet 7 by the oil pump, flows into the first oil port 9 through the solenoid valve 5 to drive the hydraulic cylinder to extend, and hydraulic oil in the hydraulic cylinder is extruded out of the hydraulic cylinder, flows into the hydraulic oil block 1 from the second oil port 10, flows into the oil outlet 8 again through the solenoid valve 5, and flows back to the oil tank.
In one embodiment, as shown in fig. 4, when the second socket 12 is connected, the oil inlet 7 is connected to the second oil port 10, the oil outlet 8 is connected to the first oil port 9, hydraulic oil is pumped from the oil pump into the hydraulic oil block 1 through the oil inlet 7, flows into the second oil port 10 through the solenoid valve 5 to drive the hydraulic cylinder to shorten, and hydraulic oil in the hydraulic cylinder is extruded out of the hydraulic cylinder, flows into the hydraulic oil block 1 from the first oil port 9, flows into the oil outlet 8 again through the solenoid valve 5, and flows back to the oil tank. The other four ways are the same in principle.
As shown in fig. 1, because the throttle valve 3 is added in the system, when the electromagnetic valve 5 works, hydraulic oil flows back through the throttle valve 3, and when the throttle valve 3 on the first socket 11 side is screwed, the flow rate of return oil during shortening is reduced, so that the speed during shortening is reduced; when the throttle valve 3 on the second spigot 12 side is tightened, the flow rate of return oil at the time of elongation is reduced, thereby reducing the speed at the time of elongation. By controlling the tightness of the throttle 3 of each path, the extension or contraction of the hydraulic cylinder of each path can be adjusted to a suitable speed, respectively.
Wherein, as shown in fig. 1, because the pressure retaining valve 2 has been added in the system, when solenoid valve 5 during operation, pressure retaining valve 2 is inoperative, can not influence normal pneumatic cylinder work, and when solenoid valve 5 was out of work, pressure retaining valve 2 can keep the hydraulic oil of first oil and second hydraulic fluid port 10 and can not flow back, and it can not make the pneumatic cylinder stroke receive the change yet to receive very big external force to indulge the pneumatic cylinder. If no pressure retaining valve 2 is added, when the hydraulic cylinder receives external force, the hydraulic oil in the hydraulic cylinder can flow back, and the position of the hydraulic cylinder is changed.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a tractor multichannel hydraulic pressure electrical system which characterized in that: including hydraulic pressure oil block, pressure retaining valve, choke valve, one way solenoid valve and solenoid valve, it is a plurality of the pressure retaining valve is installed in proper order hydraulic pressure oil block upper surface, and is a plurality of the choke valve is installed in proper order the pressure retaining valve top, the choke valve with the pressure retaining valve corresponds respectively, the choke valve is used for controlling the velocity of flow of hydraulic oil, one way solenoid valve is located hydraulic pressure oil block upper surface, just one way solenoid valve is located pressure retaining valve one side, and is a plurality of the solenoid valve is located the choke valve upper end, the solenoid valve with the choke valve corresponds respectively, the solenoid valve receives electric signal control, through control hydraulic oil flow direction, and then the flexible of control pneumatic cylinder.
2. The multi-path hydraulic electric control system of the tractor according to claim 1, characterized in that: the hydraulic oil block is characterized in that an oil inlet and an oil outlet are formed in the side surface of the hydraulic oil block, a plurality of first oil ports and second oil ports are formed in the front surface of the hydraulic oil block, and the first oil ports are sequentially arranged above the second oil ports.
3. The multi-path hydraulic electric control system of the tractor according to claim 1, characterized in that: a first socket is arranged above the one-way electromagnetic valve.
4. The multi-path hydraulic electric control system of the tractor according to claim 1, characterized in that: and a second socket is arranged on one side of the electromagnetic valve, a third socket is arranged on the other side of the electromagnetic valve, and the second socket and the third socket are respectively positioned on the positive side and the negative side of the hydraulic oil block.
5. The multi-path hydraulic electric control system of the tractor according to claim 1, characterized in that: the one-way electromagnetic valve is used for controlling connection or disconnection of the oil inlet and the oil outlet.
6. The multi-path hydraulic electric control system of the tractor according to claim 1, characterized in that: the electromagnetic valves respectively and correspondingly control the clutch, the direction, the left brake, the right brake and the auxiliary clutch.
7. The multi-path hydraulic electric control system of the tractor according to claim 1, characterized in that: the pressure retaining valve is used for preventing the first oil port and the second oil port from flowing back.
8. The multi-path hydraulic electric control system of the tractor according to claim 1, characterized in that: the one-way electromagnetic valve and the electromagnetic valve are fastened with the hydraulic oil block through bolts arranged in the insertion holes.
9. The multi-path hydraulic electric control system of the tractor according to claim 1, characterized in that: the hydraulic oil block is made of metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122002393.8U CN215762516U (en) | 2021-08-24 | 2021-08-24 | Multi-path hydraulic electric control system of tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122002393.8U CN215762516U (en) | 2021-08-24 | 2021-08-24 | Multi-path hydraulic electric control system of tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215762516U true CN215762516U (en) | 2022-02-08 |
Family
ID=80078417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122002393.8U Active CN215762516U (en) | 2021-08-24 | 2021-08-24 | Multi-path hydraulic electric control system of tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215762516U (en) |
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2021
- 2021-08-24 CN CN202122002393.8U patent/CN215762516U/en active Active
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