CN215596041U - Speed regulator and oil-supplementing integrated valve set thereof - Google Patents

Abstract

The utility model discloses a speed regulator and an oil supplementing integrated valve set thereof, wherein the oil supplementing integrated valve set comprises a valve block body, a high-pressure filter, a one-way valve, an overflow valve, an oil drain valve and a master control valve, wherein the high-pressure filter, the one-way valve, the overflow valve, the oil drain valve and the master control valve are integrally arranged on the valve block body; the oil outlet of the high-pressure filter is communicated with the oil inlet of the one-way valve, the oil outlet of the one-way valve is communicated with the oil inlet of the master control valve and the oil inlet of the oil drain valve, the oil outlet of the oil drain valve is communicated with the oil return tank, the oil inlet of the overflow valve is communicated with the oil outlet of the high-pressure filter, and the oil outlet of the overflow valve is communicated with the oil return tank. The oil-supplementing integrated valve group has the advantages of high integration degree, less leakage, good sealing performance and pressure maintaining effect, capability of reducing fault points, convenience in maintenance and overhaul, and capability of rapidly replacing damaged components, thereby reducing the maintenance cost; meanwhile, the valve group has a safe and reliable automatic overflow function, and can provide a safe and reliable oil source for the system.

Description

Speed regulator and oil-supplementing integrated valve set thereof

Technical Field

The utility model relates to the technical field of hydraulic control, in particular to an oil supplementing integrated valve bank. The utility model also relates to a speed regulator with the oil supplementing integrated valve bank.

Background

The speed regulator oil pressure device is composed of a high-pressure gear pump, an energy accumulator, a one-way valve, a safety valve, a high-pressure high-precision filtering device, a safe oil drain valve and the like, and provides a safe and reliable oil source for the system. In the prior art, as shown in fig. 1, fig. 1 is a schematic diagram of a hydraulic system of a speed regulator, the hydraulic system of the speed regulator includes a gear pump 01, a high-pressure filter 1, a check valve 2, an overflow valve 3, a safety valve and other devices, the high-pressure filter 1, the check valve 2, the overflow valve 3, the safety valve and other devices are connected by hard pipes, and due to the fact that the number of joints and pipelines of each component is large, after the component operates for a period of time, the number of leakage point faults is large, the sealing performance is poor, and the maintenance cost is increased.

Therefore, how to avoid the increase of maintenance cost caused by the poor sealing performance of the hydraulic system of the speed regulator is a technical problem which needs to be solved by the technical personnel in the field at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an oil-supplementing integrated valve bank, which adopts an integrated design and can greatly improve the sealing performance of the valve bank, thereby reducing the existence of fault points and lowering the maintenance cost. Another object of the utility model is to provide a speed governor comprising the oil compensation integrated valve group.

In order to achieve the purpose, the utility model provides an oil supplementing integrated valve group, which comprises a valve block body, a high-pressure filter, a one-way valve, an overflow valve, an oil drain valve and a master control valve, wherein the high-pressure filter, the one-way valve, the overflow valve, the oil drain valve and the master control valve are integrally arranged on the valve block body; the oil outlet of the high-pressure filter is communicated with the oil inlet of the one-way valve, the oil outlet of the one-way valve is communicated with the oil inlet of the master control valve and the oil inlet of the oil drain valve, the oil outlet of the oil drain valve is communicated with the oil return tank, the oil inlet of the overflow valve is communicated with the oil outlet of the high-pressure filter, and the oil outlet of the overflow valve is communicated with the oil return tank.

Optionally, the check valve and the overflow valve are both mounted on the valve block body through a plug-in connection structure.

Optionally, the oil drain valve and the master control valve are plate-type high-pressure ball valves.

Optionally, the valve block body is embodied as an axisymmetric structure.

Optionally, the number of the high-pressure filters is two, and the two high-pressure filters are symmetrically installed on two side walls of the valve block body.

Optionally, the number of the check valves and the number of the overflow valves are two, and the two check valves and the two overflow valves are symmetrically installed on two sides of the oil drain valve.

Optionally, the master control valve is mounted at the bottom of the valve block body.

Optionally, the valve block body is a cuboid structure.

The utility model also provides a speed regulator, which comprises a gear pump, an oil return box communicated with the gear pump, and the oil supplementing integrated valve bank communicated with the gear pump and provided with any one of the oil supplementing integrated valve banks.

Optionally, the hydraulic oil recovery system further comprises a low-pressure filter communicated with the gear pump and used for filtering hydraulic oil pumped out by the oil return tank, and an energy accumulator communicated with the oil supplementing integrated valve bank.

Compared with the background art, the oil supplementing integrated valve set provided by the embodiment of the utility model comprises a valve block body, a high-pressure filter, a one-way valve, an overflow valve, an oil drain valve and a master control valve, wherein the high-pressure filter, the one-way valve, the overflow valve, the oil drain valve and the master control valve are integrally arranged on the valve block body; meanwhile, an oil outlet of the high-pressure filter is communicated with an oil inlet of the one-way valve, an oil outlet of the one-way valve is communicated with an oil inlet of the master control valve and an oil inlet of the oil drain valve, an oil outlet of the oil drain valve is communicated with the oil return tank, an oil inlet of the overflow valve is communicated with an oil outlet of the high-pressure filter, and an oil outlet of the overflow valve is communicated with the oil return tank. In this way, the hydraulic oil filtered by the high-pressure filter valve is conveyed to the master control valve through the one-way valve, and further supplies oil to the control integrated valve group; the overflow valve can overflow the hydraulic oil filtered by the high-pressure filter valve into the oil return tank, and meanwhile, the oil discharge valve can allow the hydraulic oil coming out of the one-way valve to flow back into the oil return tank, so that the stability and the safety of the operation of the oil supplementing integrated valve group can be ensured. Compared with the traditional non-integrated valve bank, the oil supplementing integrated valve bank provided by the embodiment of the utility model has the advantages of high integration degree, less connection quantity of pipelines and joints, less leakage, good sealing performance and pressure maintaining effect, capability of reducing fault points, convenience in maintenance and overhaul, and capability of rapidly replacing damaged components, thereby reducing the maintenance cost; meanwhile, the valve group has a safe and reliable automatic overflow function, and can provide a safe and reliable oil source for the system. In addition, because the high-pressure filter valve is arranged in front of the oil circuit where the check valve and the overflow valve are located, the fault occurrence rate of the check valve and the overflow valve can be greatly reduced, and the problem that the check valve and the overflow valve are easy to damage after being operated under the condition of poor oil quality for a long time can be solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic diagram of a governor hydraulic system of the prior art;

fig. 2 is a schematic structural diagram of an oil supply integrated valve assembly according to an embodiment of the present invention;

FIG. 3 is a schematic view of another angle of the oil supply integrated valve set;

FIG. 4 is a schematic view of an oil port on the valve block body in FIG. 1;

FIG. 5 is a schematic view of an oil port at another angle on the valve block body of FIG. 1;

fig. 6 is a hydraulic schematic diagram of the connection of an oil supply integrated valve group, an oil return tank and an accumulator in the speed governor according to the embodiment of the present invention.

Wherein:

01-gear pump, 02-low pressure filter, 03-oil return tank, 04-accumulator;

1-a high-pressure filter, 2-a one-way valve, 3-an overflow valve, 4-an oil drain valve and 5-a master control valve;

10-a valve block body;

101-a first oil pump interface, 102-an energy accumulator oil storage port, 103-a total oil return port, 104-a second oil pump interface, 105-a control valve block total oil inlet, 106-a high-pressure filter oil inlet, 107-a high-pressure filter oil outlet, 108-a total control valve oil outlet, 109-a total control valve oil inlet, 110-an oil drain valve oil inlet and 111-an oil drain valve oil outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.

The core of the utility model is to provide an oil-supplementing integrated valve bank, which adopts an integrated design and can greatly improve the sealing performance of the valve bank, thereby reducing the existence of fault points and lowering the maintenance cost. The other core of the utility model is to provide a speed regulator comprising the oil supplementing integrated valve group.

In order that those skilled in the art will better understand the disclosure, the utility model will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 2 to 6, fig. 2 is a schematic structural diagram of an oil compensation integrated valve set according to an embodiment of the present invention; FIG. 3 is a schematic view of another angle of the oil supply integrated valve set;

FIG. 4 is a schematic view of an oil port on the valve block body in FIG. 1; FIG. 5 is a schematic view of an oil port at another angle on the valve block body of FIG. 1; fig. 6 is a hydraulic schematic diagram of the connection of an oil supply integrated valve group, an oil return tank and an accumulator in the speed governor according to the embodiment of the present invention.

The oil supplementing integrated valve set provided by the embodiment of the utility model comprises a valve block body 10, a high-pressure filter 1, a one-way valve 2, an overflow valve 3, an oil drain valve 4 and a master control valve 5, wherein the high-pressure filter 1, the one-way valve 2, the overflow valve 3, the oil drain valve 4 and the master control valve 5 are integrally arranged on the valve block body 10.

Of course, according to actual need, above-mentioned valve block body 10 is preferred the axisymmetric structure, and this text is preferred to adopt the cuboid structure, can evenly arrange each components and parts like this to guarantee the stability and the unobstructed of valves oil circuit.

Specifically, an oil outlet of the high-pressure filter 1 is communicated with an oil inlet of the one-way valve 2, an oil outlet of the one-way valve 2 is communicated with an oil inlet of the master control valve 5, an oil inlet of the oil drain valve 4 is communicated with an oil outlet of the one-way valve 2, an oil outlet of the oil drain valve 4 is communicated with the oil return tank 03, an oil inlet of the overflow valve 3 is communicated with an oil outlet of the high-pressure filter 1, and an oil outlet of the overflow valve 3 is communicated with the oil return tank 03.

Therefore, after being filtered by the high-pressure filter valve, the hydraulic oil is conveyed to the master control valve 5 through the one-way valve 2 and further supplies oil to the control integrated valve group; the overflow valve 3 can overflow the hydraulic oil filtered by the high-pressure filter valve to the oil return tank 03, and meanwhile, the oil drain valve 4 can allow the hydraulic oil coming out of the check valve 2 to flow back to the oil return tank 03, so that the stability and the safety of the operation of the oil supplementing integrated valve set can be ensured.

Compared with the traditional non-integrated valve bank, the oil supplementing integrated valve bank provided by the embodiment of the utility model has the advantages of good sealing performance, good maintainability and high safety.

From the sealing aspect: the valve bank is high in integration degree, the number of the pipelines and the connectors is small, leakage is few, sealing performance and pressure maintaining effect are good, and fault points can be reduced.

From the aspect of maintenance: the maintenance and overhaul are convenient, and the damaged components can be replaced rapidly, so that the maintenance cost can be reduced.

From the viewpoint of safety: the valve bank has a safe and reliable automatic overflow function, and can provide a safe and reliable oil source for the system.

In addition, because the high-pressure filter valve is arranged in front of the oil circuit where the check valve 2 and the overflow valve 3 are located, the fault occurrence rate of the check valve 2 and the overflow valve 3 can be greatly reduced, and the problem that the check valve 2 and the overflow valve 3 are easy to damage after long-term operation under the condition of poor oil quality can be solved.

For the convenience of installation, the check valve 2 and the overflow valve 3 are both installed on the valve block body 10 through a plug-in type connecting structure, wherein the plug-in type connecting structure may be arranged on the valve block body 10, or of course, may also be a plug-in structure which is adapted to the check valve 2 or the overflow valve 3 and is arranged on the check valve 2 or the overflow valve 3. The arrangement mode can facilitate the overhauling and maintenance of the check valve 2 and the overflow valve 3, thereby saving the maintenance cost.

In order to further improve the sealing performance, the oil drain valve 4 and the master control valve 5 both adopt plate-type high-pressure ball valves. The plate-type high-pressure ball valve adopts spherical seal, has good sealing performance, and can reduce the oil leakage faults of the oil drain valve 4 and the master control valve 5, thereby improving the pressure maintaining effect of the system.

In this embodiment, the oil supply integrated valve set is in an axisymmetric structure after being integrally assembled. Specifically, the valve block body 10 has an axisymmetric structure, and a rectangular parallelepiped structure is used herein. The number of the high-pressure filters 1 is two, and the two high-pressure filters 1 are symmetrically arranged on the left side wall and the right side wall of the valve block body 10. Simultaneously, the quantity of check valve 2 and overflow valve 3 also sets up to two, and two check valves 2 and two overflow valves 3 are all installed in the both sides of fuel outlet valve 4 symmetrically.

Specifically speaking, two high pressure filter 1 symmetries are installed on two lateral walls of the left and right sides of valve block body 10, fuel outlet valve 4 is installed on the antetheca of valve block body 10, the antetheca of valve block body 10 is as the operating surface, be favorable to the maintenance and the maintenance of valve body, simultaneously, two check valve 2 symmetries are installed in fuel outlet valve 4's both sides, two overflow valves 3 symmetries are installed in fuel outlet valve 4's both sides, and the check valve 2 of arbitrary side is located the top of overflow valve 3, total control valve 5 is installed in the bottom of valve block body 10.

In this way, the left and right oil passages of the valve block body 10 can be independently supplemented with oil, and are mutually standby and redundant in design.

It should be noted that the above components are all installed outside the valve block body 10, so that the installation and maintenance are more convenient.

In order to facilitate the smooth oil path of the oil supplementing integrated valve group, the front wall of the valve block body 10 is provided with mounting positions for mounting two one-way valves 2 and two overflow valves 3, the front wall is also provided with an oil drain valve oil inlet 110 for feeding oil into the oil drain valve 4 and an oil drain valve oil outlet 111 for feeding oil out from the oil drain valve 4, two side walls of the valve block body 10 are respectively provided with a high-pressure filter oil inlet 106 for feeding oil into the high-pressure filter 1 and a high-pressure filter oil outlet 107 for discharging oil from the high-pressure filter 1, the bottom of the valve block body 10 is provided with a total oil return port 103, a total control valve oil inlet 109 for feeding oil into the total control valve 5 and a total control valve oil outlet 108 for discharging oil from the total control valve 5, in addition, the rear wall of the valve block body 10 is also provided with a first oil pump interface 101 (an oil source inlet), an energy accumulator oil storage 102, a second oil pump interface 104 (an oil source inlet) and a control valve block oil inlet 105 communicated with the total control valve oil outlet 108, the control valve block main oil inlet 105 is used as an oil inlet of a control integrated valve group, the control integrated valve group is connected with an oil supplementing integrated valve group, and the oil supplementing integrated valve group provides a stable oil source for the control integrated valve group.

The speed regulator provided by the utility model comprises a gear pump 01, an oil return tank 03 communicated with the gear pump 01, and an oil supplementing integrated valve group communicated with the gear pump 01 and described in the specific embodiment; the speed regulator further comprises a low-pressure filter 02, an energy accumulator 04 and a pressure gauge set, wherein the low-pressure filter 02 is communicated with the gear pump 01, the low-pressure filter 02 is used for filtering hydraulic oil pumped out by the oil return tank 03, and therefore the low-pressure filter 02 serves as a first stage of filtering, the high-pressure filter 1 serves as a second stage of filtering, and the oil quality of the hydraulic oil can be greatly improved through the two-stage filtering; accumulator 04 and the integrated valves intercommunication of benefit oil, the pipeline afterbody of being connected with accumulator 04 still is equipped with the manometer group, can the oil pressure in the real-time detection system to guarantee the stability and the security of system operation. Other parts of the governor can be referred to the prior art and are not expanded herein.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The speed regulator and the oil-supplementing integrated valve set thereof provided by the utility model are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are provided only to help understand the concepts of the present invention and the core concepts thereof. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (10)

1. The oil supplementing integrated valve bank is characterized by comprising a valve block body (10), a high-pressure filter (1), a one-way valve (2), an overflow valve (3), an oil drain valve (4) and a master control valve (5), wherein the high-pressure filter (1), the one-way valve (2), the overflow valve (3), the oil drain valve (4) and the master control valve (5) are integrally installed on the valve block body (10); the oil-out of high pressure filter (1) with the oil inlet intercommunication of check valve (2), the oil-out of check valve (2) with the oil inlet of total control valve (5) with the oil inlet intercommunication of fuel outlet valve (4), the oil-out of fuel outlet valve (4) is used for returning oil tank (03) intercommunication, the oil inlet of overflow valve (3) with the oil-out intercommunication of high pressure filter (1), the oil-out of overflow valve (3) is used for returning oil tank (03) intercommunication.

2. The integrated valve group of oil supply according to claim 1, characterized in that the check valve (2) and the overflow valve (3) are mounted on the valve block body (10) by means of a cartridge type connection structure.

3. The oil recharging integrated valve group of claim 1, wherein the oil discharging valve (4) and the master control valve (5) are plate type high-pressure ball valves.

4. -oil feeding integrated valve group according to any one of claims 1 to 3, characterised in that the valve block body (10) is embodied with an axisymmetric structure.

5. The group of integrated oil feeding valves as defined in claim 4, wherein the number of the high-pressure filters (1) is two, and two high-pressure filters (1) are symmetrically mounted on two side walls of the valve block body (10).

6. The oil supplementing integrated valve group according to claim 5, characterized in that the number of the check valves (2) and the overflow valves (3) is two, and the two check valves (2) and the two overflow valves (3) are symmetrically arranged on two sides of the oil drain valve (4).

7. The integrated valve group for replenishing oil according to claim 6, wherein the master control valve (5) is mounted at the bottom of the valve block body (10).

8. The integrated valve group for replenishing oil according to claim 4, characterized in that the valve block body (10) is embodied in the form of a rectangular parallelepiped.

9. A speed governor, comprising a gear pump (01) and an oil return tank (03) communicated with the gear pump (01), characterized by further comprising an oil supply integrated valve set according to any one of claims 1 to 8 communicated with the gear pump (01).

10. A governor according to claim 9, further comprising a low pressure filter (02) communicating with the gear pump (01) for filtering hydraulic oil drawn out by the oil return tank (03), and an accumulator (04) communicating with the oil supply integration valve group.

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