CN110671378A - Light hydraulic valve block - Google Patents
Light hydraulic valve block Download PDFInfo
- Publication number
- CN110671378A CN110671378A CN201811559467.4A CN201811559467A CN110671378A CN 110671378 A CN110671378 A CN 110671378A CN 201811559467 A CN201811559467 A CN 201811559467A CN 110671378 A CN110671378 A CN 110671378A
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- CN
- China
- Prior art keywords
- valve block
- network structure
- hydraulic valve
- pipe network
- hydraulic
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
Abstract
The invention discloses a light hydraulic valve block, which belongs to the technical field of hydraulic pressure and comprises a pipe network structure, an external filling body and a bolt mounting base. The pipe network structure is an internal circulation pipeline of the hydraulic valve block body, and is built by adopting a high-pressure pipeline, and the size of the internal circulation pipeline is determined according to a hydraulic valve integrated on the valve block; the external filling body is used for filling external gaps of the pipe network structure and is made of light materials; the bolt mounting base is made of high-strength materials, is embedded in the external filling body and is used for connecting the hydraulic valve with the bolt between the valve block bodies. According to the invention, a pipe network structure is adopted to replace an internal flow passage structure of the valve block body, and light materials are adopted to fill external gaps, so that the weight of the valve block body is effectively reduced on the basis of meeting the requirement of integrated installation of the hydraulic valve.
Description
Technical Field
The invention relates to the field of hydraulic transmission, in particular to a valve block body which is an integrated installation part of a hydraulic valve and is a key part of a hydraulic transmission system.
Background
The integrated hydraulic installation valve block integrally installs a plurality of hydraulic valves on the valve block body, so that the design and installation of a hydraulic system can be simplified, the integration and standardization of the hydraulic system are facilitated, and the manufacturing cost is reduced and the reliability is improved. Therefore, the important function of the hydraulic integrated valve block in a hydraulic system is more and more prominent, and the application range is very wide. With the increase of complexity and integration of hydraulic systems, higher requirements are put on the design of the hydraulic valve block body.
The existing hydraulic valve block is usually manufactured by an integral forging piece through machining processes such as milling, drilling, grinding, surface treatment and the like, has certain requirements on internal structures of materials, and cannot have the defects of interlayers, sand holes and the like.
The existing hydraulic valve block body is usually made of forged steel or aluminum alloy materials. The aluminum alloy material has low strength and is only suitable for valve block bodies of medium and low pressure hydraulic systems. The medium-high pressure hydraulic valve block body is generally made of 35 forged steel, A3 steel or nodular cast iron, and has high material density and heavy valve block body weight. Particularly, when the number of integrated hydraulic valves is large, a hoisting structure is required on the valve block body due to overlarge weight.
The oil path channel inside the existing hydraulic valve block body is realized by drilling, and a control channel and a three-dimensional inclined hole which are connected in a complex way are prevented from being arranged in the valve block body as much as possible during design, and an inclined channel is prevented from being adopted. When the inclined hole is required to be arranged, the inclined angle of the hole channel does not exceed 35 degrees so as to avoid the influence on the sealing of the oil port due to the oval hole opening caused by inclined hole machining.
Disclosure of Invention
Aiming at the problems that the traditional middle-high pressure hydraulic integrated valve block is heavy in weight and limited in pore passage processing, the invention aims to provide a light hydraulic valve integrated installation block suitable for a high-pressure and large-flow hydraulic system.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a light hydraulic valve block is structurally characterized in that a high-pressure pipeline is adopted to build a pipe network structure to form an internal flow passage of the valve block; light materials are filled around the pipe network structure to form the overall shape of the valve block body; the bolt mounting base is embedded in the external filling body and used for bolt connection during hydraulic valve mounting.
Therefore, on the basis of realizing the integrated hydraulic installation function through the high-pressure pipe network structure and the embedded bolt installation base, the overall light weight of the hydraulic valve block body is realized through filling light materials in the outer space of the pipeline.
The following is a further improved technical solution of the present invention.
Furthermore, the pipe network structure adopts a high-pressure pipeline, and is divided into a main oil way and an execution oil way according to purposes, the main oil way pipeline is used for connecting the hydraulic valve and a hydraulic oil source, and the execution oil way pipeline is used for connecting the hydraulic valve and a hydraulic execution element.
The inclined pipeline in the valve block adopts a single-shift-line type bent pipe, so that an oval oil port in an inclined hole (particularly a large-angle inclined hole) is avoided, and the sealing effect of the oil port is ensured.
The execution oil pipeline adopts a right-angle bent pipe, so that the local pressure loss of oil is reduced.
The external filling body occupies most of the volume of the valve block body, and a low-density material (such as aluminum alloy, composite material and the like) is adopted.
The bolt mounting base is made of high-strength materials (such as cast steel, forged steel and the like), and the connecting strength of the bolt is improved.
The appearance of the bolt mounting base adopts a frustum structure, so that the connection strength between the bolt mounting base and the external filling body is increased.
The outer side of the bottom of the bolt mounting base is rounded, so that local stress concentration in an external filling body is prevented.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the high-pressure pipeline is adopted to build the oil passage in the valve block body, so that the structural layout is flexible; and the light material is used for filling the external space of the pipe network structure, so that the whole weight of the valve block body is reduced.
On the basis of adopting a high-pressure pipeline to build a pipe network structure to realize the function of the hydraulic valve block body, the lightweight valve block body is realized by filling light materials outside, and the hydraulic valve block body has the characteristics of low technical cost, convenient layout and light weight.
The invention is further illustrated below with reference to the figures and examples.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of the pipe network structure.
Fig. 3 is a schematic view of the lightweight outer filling.
Fig. 4 is a schematic view of the threaded mounting base.
Detailed Description
A light hydraulic integrated valve block is shown in figure 1 and comprises a pipe network structure, a bolt mounting base and an external filling body, wherein the pipe network structure and the bolt mounting base are embedded in the external filling body, and a four-way electromagnetic reversing valve (not shown) and an overflow valve (not shown) are mounted on the upper surface of the valve block.
As shown in fig. 1, in the oil line, P0 and T0 are oil inlets of a main oil inlet line and a main oil return line, P1, T1, a1 and B1 correspond to four oil inlets P, T, A, B of a reversing valve, P2 and T2 correspond to an oil inlet P, T of an overflow valve, and a2 and B2 are oil line interfaces of an actuating element.
When the hydraulic integrated valve block normally works (the overflow valve is not opened), as shown in fig. 1, high-pressure oil flowing out of the hydraulic pump enters a main pipe of the valve block body from a port P0, flows to a port P1 through a branch pipe, then enters a port P of the hydraulic reversing valve, flows to a port A2/B2 through a port A1/B1 after being switched by an oil path in the reversing valve, and finally flows to a hydraulic actuating element; on the contrary, the low-pressure oil returning from the actuating element flows to the ports B1/A1 through the ports B2/A2, enters the ports B/A of the reversing valve, is switched to the port T of the reversing valve through the internal oil way of the reversing valve, then enters the main return oil pipe through the port T1 on the valve block body, and finally flows back to the oil tank. When the system overflows (namely, the overflow valve is opened), high-pressure oil enters the main pipeline of the valve block body from the P0 port, flows to the P2 port through the branch pipeline, then enters the P port of the overflow valve, flows back to the T0 port through the T2 port after being switched by an oil circuit in the overflow valve, and finally returns to the oil tank.
As shown in fig. 2, in the oil line pipeline, a single-shift-line elbow is adopted between P1 and T1 and the main oil line pipeline, so that the oil ports P1 and T1 are circular oil ports.
As shown in FIG. 2, in the oil pipeline, right-angle bends are adopted between the pipelines from A1 to A2 and from B1 to B2.
As shown in fig. 3, the upper surface of the external packing body is used for mounting the hydraulic valve, and the surface roughness of the external packing body is not lower than ra0.8, and the surface roughness of the other surface is not lower than ra3.2.
As shown in FIG. 4, the bolt mounting base is of a frustum structure, a threaded blind hole is machined in the bolt mounting base, and the thread size is matched with that of the hydraulic valve mounting bolt.
The foregoing examples are set forth to illustrate the present invention more clearly and are not to be construed as limiting the scope of the invention, which is defined in the appended claims to which the invention pertains, as those skilled in the art will appreciate, after reading the present invention.
Claims (5)
1. A lightweight hydraulic valve block comprising three sections: pipe network structure, outside obturator and bolt installation base, characterized by, pipe network structure is as the inside oil road passageway of valve block body, and outside obturator is filled in the outside space of pipe network structure, and bolt installation base imbeds in outside obturator.
2. The light hydraulic valve block body according to claim 1, wherein the pipe network structure is built by high-pressure pipes, and the structural size and the spatial position of each pipe are determined by the specification of a corresponding hydraulic valve on the valve block body.
3. The pipe network structure of claim 2, wherein the diagonal line connecting the main oil path and the hydraulic valve is a single shift elbow.
4. The light-duty hydraulic valve block body of claim 1, wherein, the external packing body is made of low-density material, and fills the external gap of the pipe network structure to form the valve block body shape.
5. The lightweight hydraulic valve block of claim 1, wherein the bolt mounting base is made of a high strength material and is shaped like a frustum of a cone embedded in the outer packing body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559467.4A CN110671378A (en) | 2018-12-20 | 2018-12-20 | Light hydraulic valve block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559467.4A CN110671378A (en) | 2018-12-20 | 2018-12-20 | Light hydraulic valve block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110671378A true CN110671378A (en) | 2020-01-10 |
Family
ID=69065529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811559467.4A Pending CN110671378A (en) | 2018-12-20 | 2018-12-20 | Light hydraulic valve block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110671378A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111687603A (en) * | 2020-06-18 | 2020-09-22 | 上海联沁晟实业有限公司 | Hydraulic valve block machining process |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1268211A (en) * | 1997-08-27 | 2000-09-27 | 株式会社日立制作所 | Taper piece, thread fastening construction using taper piece with female thread, formed drill for processing insertion hole for taper piece and hammer for driving of taper piece |
| US20050111931A1 (en) * | 2003-03-14 | 2005-05-26 | Hool Patrick H. | Clinched thread saver |
| CN102913499A (en) * | 2012-10-30 | 2013-02-06 | 中联重科股份有限公司 | Expansion valve block |
| CN102996604A (en) * | 2012-11-16 | 2013-03-27 | 无锡先锋电机有限公司 | Threaded hole of aluminium alloy component and production method for same |
| CN204739067U (en) * | 2015-06-30 | 2015-11-04 | 上海致维自动化控制有限公司 | Bury formula nut with tensile ability |
| CN105134680A (en) * | 2015-09-29 | 2015-12-09 | 徐州重型机械有限公司 | Integrate valve block, integrate valve group and hydraulic system |
| CN107559256A (en) * | 2017-09-01 | 2018-01-09 | 河北华春液压汽配有限公司 | Hydraulic integrated valve block and its preparation and application |
-
2018
- 2018-12-20 CN CN201811559467.4A patent/CN110671378A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1268211A (en) * | 1997-08-27 | 2000-09-27 | 株式会社日立制作所 | Taper piece, thread fastening construction using taper piece with female thread, formed drill for processing insertion hole for taper piece and hammer for driving of taper piece |
| US20050111931A1 (en) * | 2003-03-14 | 2005-05-26 | Hool Patrick H. | Clinched thread saver |
| CN102913499A (en) * | 2012-10-30 | 2013-02-06 | 中联重科股份有限公司 | Expansion valve block |
| CN102996604A (en) * | 2012-11-16 | 2013-03-27 | 无锡先锋电机有限公司 | Threaded hole of aluminium alloy component and production method for same |
| CN204739067U (en) * | 2015-06-30 | 2015-11-04 | 上海致维自动化控制有限公司 | Bury formula nut with tensile ability |
| CN105134680A (en) * | 2015-09-29 | 2015-12-09 | 徐州重型机械有限公司 | Integrate valve block, integrate valve group and hydraulic system |
| CN107559256A (en) * | 2017-09-01 | 2018-01-09 | 河北华春液压汽配有限公司 | Hydraulic integrated valve block and its preparation and application |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111687603A (en) * | 2020-06-18 | 2020-09-22 | 上海联沁晟实业有限公司 | Hydraulic valve block machining process |
| CN111687603B (en) * | 2020-06-18 | 2021-11-30 | 上海联沁晟实业有限公司 | Hydraulic valve block machining process |
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Application publication date: 20200110 |
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