CN214170976U - Hydraulic unit structure - Google Patents
Hydraulic unit structure Download PDFInfo
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- CN214170976U CN214170976U CN202120058715.8U CN202120058715U CN214170976U CN 214170976 U CN214170976 U CN 214170976U CN 202120058715 U CN202120058715 U CN 202120058715U CN 214170976 U CN214170976 U CN 214170976U
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- hydraulic
- hydraulic oil
- gear pump
- oil
- steering
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Abstract
The utility model discloses a hydraulic unit structure, including hydraulic pressure oil feeding system, hydraulic steering system, hydraulic braking system and hydraulic pressure system of lifting, wherein: the hydraulic oil supply system comprises a hydraulic oil tank, a filter, a duplex gear pump and a gear pump, wherein the filter is arranged on the hydraulic oil tank, the duplex gear pump absorbs oil from the hydraulic oil tank, and the gear pump absorbs oil from the hydraulic oil tank; the hydraulic steering system comprises a full hydraulic steering gear and a steering oil cylinder, and hydraulic oil sequentially flows to the full hydraulic steering gear and the steering oil cylinder after passing through a rear pump of the double gear pump. The hydraulic oil supply system of the utility model supplies oil for the hydraulic steering system, the hydraulic braking system and the hydraulic lifting system at the same time, adopts the double gear pump and the gear pump, and can meet different requirements of the system; the wet brake locks the brake piece to be braked in the initial state, and the locking state can be released when the hydraulic brake system works, so that the device can be in the braking state after the hydraulic system is damaged, and the safety accident is avoided.
Description
Technical Field
The utility model belongs to the technical field of hydraulic pressure, concretely relates to hydraulic unit structure.
Background
The known hydraulic system has the problems of complex structure, large volume, large mass, slow response, low control accuracy and the like. Meanwhile, the hydraulic system is heavier when multiple functions are realized, and certain burden is brought to actual construction operation.
Disclosure of Invention
The utility model aims at providing a hydraulic unit structure, it has the structure compacter, the volume is littleer, light in weight and the faster hydraulic control system of dynamic response, and control accuracy is higher moreover, and response control command's speed is very fast.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a hydraulic unit structure comprises a hydraulic oil supply system, a hydraulic steering system, a hydraulic braking system and a hydraulic lifting system, wherein:
the hydraulic oil supply system comprises a hydraulic oil tank, a filter, a duplicate gear pump and a gear pump, wherein the filter is arranged on the hydraulic oil tank, the duplicate gear pump sucks oil from the hydraulic oil tank, and the gear pump sucks oil from the hydraulic oil tank;
the hydraulic steering system comprises a full hydraulic steering gear and a steering oil cylinder, and hydraulic oil passes through a rear pump of the double gear pump and then sequentially flows to the full hydraulic steering gear and the steering oil cylinder;
the hydraulic brake system comprises a high-pressure filter, a first shock-proof pressure gauge, an overflow valve, a liquid filling valve, a three-way ball valve, a hand pump, a second shock-proof pressure gauge, an energy accumulator, a manual reversing valve, a reverse brake valve, a third shock-proof pressure gauge and four wet brakes, hydraulic oil passes through the front pump of the dual gear pump and then enters the high-pressure filter, the hydraulic oil passes through the high-pressure filter and then enters the first shock-proof pressure gauge, the overflow valve and the liquid filling valve which are connected in parallel, the hydraulic oil passes through the liquid filling valve and then enters the three-way ball valve, the hydraulic oil passes through the three-way ball valve and then enters the hand pump, the second shock-proof pressure gauge, the energy accumulator and the manual reversing valve which are connected in parallel, the hydraulic oil passes through the manual reversing valve and then enters the reverse brake valve and then enters the third shock-proof pressure gauge and the four wet brakes which are connected in parallel;
the hydraulic lifting system is provided with a slow-lowering pneumatic control reversing valve and two lifting oil cylinders, hydraulic oil passes through the gear pump and then reaches the slow-lowering pneumatic control reversing valve, and hydraulic oil passes through the slow-lowering pneumatic control reversing valve and then reaches the two lifting oil cylinders which are connected in parallel.
In the structure, the dual gear pump absorbs oil from the hydraulic oil tank through the first oil absorption filter, and the gear pump absorbs oil from the hydraulic oil tank through the second oil absorption filter.
In the structure, the hydraulic oil tank further comprises a liquid level device, and the liquid level device is installed on one side of the hydraulic oil tank.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the hydraulic oil supply system of the utility model supplies oil for the hydraulic steering system, the hydraulic braking system and the hydraulic lifting system at the same time, adopts the double gear pump and the gear pump, and can meet different requirements of the system; the utility model discloses a wet brake will treat the braking piece locking at initial state, and the locking state can be relieved to hydraulic braking system during operation, can ensure that hydraulic system damages the back equipment and be in the brake state, avoids the incident to take place. Meanwhile, the hydraulic control system is more compact in structure, smaller in size, lighter in weight and faster in dynamic response, the system control precision is higher, the speed of responding to a control instruction is higher, a pressure protection safety valve or other overload protection mechanisms are easily arranged in a hydraulic loop, and the hydraulic system can reliably carry out frequent load starting and braking and forward and reverse linear or rotary motion.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a hydraulic structure diagram of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1, a hydraulic unit structure includes a hydraulic oil supply system, a hydraulic steering system, a hydraulic braking system and a hydraulic lifting system, wherein:
the hydraulic oil supply system comprises a hydraulic oil tank 1, a filter 15, a duplicate gear pump 3 and a gear pump 19, wherein the filter 15 is installed on the hydraulic oil tank 1, the duplicate gear pump 3 sucks oil from the hydraulic oil tank 1, and the gear pump 19 sucks oil from the hydraulic oil tank 1;
the hydraulic steering system comprises a full hydraulic steering gear 16 and a steering oil cylinder 17, and hydraulic oil passes through a rear pump of the double gear pump 3 and then sequentially flows to the full hydraulic steering gear 16 and the steering oil cylinder 17;
the hydraulic brake system comprises a high-pressure filter 4, a first shock-proof pressure gauge 5a, an overflow valve 6, a liquid charging valve 7, a three-way ball valve 8, a manual pump 9, a second shock-proof pressure gauge 5b, an energy accumulator 10, a manual reversing valve 11, a reverse brake valve 12, a third shock-proof pressure gauge 13 and four wet brakes 14, hydraulic oil passes through a front pump of the double gear pump 3 and then reaches the high-pressure filter 4, the hydraulic oil passes through the high-pressure filter 4 and then reaches a first shock-proof pressure gauge 5a, an overflow valve 6 and a liquid filling valve 7 which are connected in parallel, the hydraulic oil passes through the liquid filling valve 7 and then reaches a three-way ball valve 8, the hydraulic oil passes through the three-way ball valve 8 and then reaches a hand pump 9, a second shock-proof pressure gauge 5b, an energy accumulator 10 and a hand reversing valve 11 which are connected in parallel, the hydraulic oil passes through the hand reversing valve 11 and then reaches a reverse braking valve 12, and the hydraulic oil passes through the reverse braking valve 12 and then reaches a third shock-proof pressure 13 and four wet brakes 14 which are connected in parallel;
the hydraulic lifting system is provided with a slow-lowering pneumatic control reversing valve 20 and two lifting oil cylinders 21, hydraulic oil passes through the gear pump 19 and then reaches the slow-lowering pneumatic control reversing valve 20, and hydraulic oil passes through the slow-lowering pneumatic control reversing valve 20 and then reaches the two lifting oil cylinders 21 which are connected in parallel.
The double gear pump 3 sucks oil from the hydraulic oil tank 1 through the first oil suction filter 2a, and the gear pump 19 sucks oil from the hydraulic oil tank 1 through the second oil suction filter 2 b.
The hydraulic oil tank is characterized by further comprising a liquid level device, wherein the liquid level device is installed on one side of the hydraulic oil tank 1.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement, component separation or combination made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The hydraulic unit structure is characterized by comprising a hydraulic oil supply system, a hydraulic steering system, a hydraulic braking system and a hydraulic lifting system, wherein:
the hydraulic oil supply system comprises a hydraulic oil tank, a filter, a duplicate gear pump and a gear pump, wherein the filter is arranged on the hydraulic oil tank, the duplicate gear pump sucks oil from the hydraulic oil tank, and the gear pump sucks oil from the hydraulic oil tank;
the hydraulic steering system comprises a full hydraulic steering gear and a steering oil cylinder, and hydraulic oil passes through a rear pump of the double gear pump and then sequentially flows to the full hydraulic steering gear and the steering oil cylinder;
the hydraulic brake system comprises a high-pressure filter, a first shock-proof pressure gauge, an overflow valve, a liquid filling valve, a three-way ball valve, a hand pump, a second shock-proof pressure gauge, an energy accumulator, a manual reversing valve, a reverse brake valve, a third shock-proof pressure gauge and four wet brakes, hydraulic oil passes through the front pump of the dual gear pump and then enters the high-pressure filter, the hydraulic oil passes through the high-pressure filter and then enters the first shock-proof pressure gauge, the overflow valve and the liquid filling valve which are connected in parallel, the hydraulic oil passes through the liquid filling valve and then enters the three-way ball valve, the hydraulic oil passes through the three-way ball valve and then enters the hand pump, the second shock-proof pressure gauge, the energy accumulator and the manual reversing valve which are connected in parallel, the hydraulic oil passes through the manual reversing valve and then enters the reverse brake valve and then enters the third shock-proof pressure gauge and the four wet brakes which are connected in parallel;
the hydraulic lifting system is provided with a slow-lowering pneumatic control reversing valve and two lifting oil cylinders, hydraulic oil passes through the gear pump and then reaches the slow-lowering pneumatic control reversing valve, and hydraulic oil passes through the slow-lowering pneumatic control reversing valve and then reaches the two lifting oil cylinders which are connected in parallel.
2. The hydraulic unit structure according to claim 1, wherein the double gear pump sucks oil from the hydraulic oil tank through a first oil suction filter, and the gear pump sucks oil from the hydraulic oil tank through a second oil suction filter.
3. The hydraulic unit structure according to claim 1, further comprising a liquid level gauge installed at a side of the hydraulic oil tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120058715.8U CN214170976U (en) | 2021-01-11 | 2021-01-11 | Hydraulic unit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120058715.8U CN214170976U (en) | 2021-01-11 | 2021-01-11 | Hydraulic unit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214170976U true CN214170976U (en) | 2021-09-10 |
Family
ID=77593184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120058715.8U Active CN214170976U (en) | 2021-01-11 | 2021-01-11 | Hydraulic unit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214170976U (en) |
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2021
- 2021-01-11 CN CN202120058715.8U patent/CN214170976U/en active Active
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