CN203655755U - Confluence valve block assembly of hydraulic system - Google Patents

Confluence valve block assembly of hydraulic system Download PDF

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Publication number
CN203655755U
CN203655755U CN201320800342.2U CN201320800342U CN203655755U CN 203655755 U CN203655755 U CN 203655755U CN 201320800342 U CN201320800342 U CN 201320800342U CN 203655755 U CN203655755 U CN 203655755U
Authority
CN
China
Prior art keywords
hydraulic
valve
interface
assembly
valve block
Prior art date
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.)
Expired - Fee Related
Application number
CN201320800342.2U
Other languages
Chinese (zh)
Inventor
吴兆平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LONKING (SHANGHAI) MACHINERY PARTS CO Ltd
Original Assignee
LONKING (SHANGHAI) MACHINERY PARTS CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LONKING (SHANGHAI) MACHINERY PARTS CO Ltd filed Critical LONKING (SHANGHAI) MACHINERY PARTS CO Ltd
Priority to CN201320800342.2U priority Critical patent/CN203655755U/en
Application granted granted Critical
Publication of CN203655755U publication Critical patent/CN203655755U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a confluence valve block assembly of a hydraulic system. The confluence valve block assembly of the hydraulic system comprises a distribution valve, a priority valve and a working pump, and is characterized in that an oil port of the distribution valve is connected with a confluence valve block through an oil outlet rubber pipe assembly of the working pump, an oil port of the priority valve is connected with the confluence valve block through a flow distributing rubber pipe assembly of the priority valve, and the confluence valve block is arranged on the working pump. According to the confluence valve block assembly of the hydraulic system, an existing distribution valve oil inlet steel pipe welding assembly is improved into an integral type confluence valve block mode, and the confluence valve block assembly of the hydraulic system has the advantages of saving manufacturing cost, being simple and attractive, greatly reducing the fault rate of the hydraulic system and the like.

Description

A kind of hydraulic system converging valve block assembly
Technical field
The utility model relates to a kind of hydraulic system converging valve block assembly, belongs to hydraulic system for wheel loader technical field.
Background technique
In prior art, what hydraulic system for wheel loader working pump interflow fuel-displaced and pressure-gradient control valve part hydraulic oil adopted is by distributing valve 1, pressure-gradient control valve 2, working pump 4, hose assembly (being pressure-gradient control valve shunting hose assembly 3 and the fuel-displaced hose assembly 6 of working pump), hose assembly one end adopts flange and valve, pump hydraulic fluid port connects, the other end adopts the movable internal thread of 24 ° of conical surfaces to be connected with distributing valve oil-feed steel pipe assembly 7, as Fig. 1, shown in Fig. 2, distributing valve 1 is connected with one end of distributing valve oil-feed steel pipe assembly 7, pressure-gradient control valve 2 is shunted hose assembly 3 by pressure-gradient control valve and is connected with distributing valve oil-feed steel pipe assembly 7, working pump 4 is connected with distributing valve oil-feed steel pipe assembly 7 by the fuel-displaced hose assembly 6 of working pump, its deficiency is: distributing valve oil-feed steel pipe assembly 7 is assemblied in front frame, there is the inharmonic situation of ratio in fit on, round flange and two inipple valve piece imbalances, two weight differs larger, because the operating environment of wheel loader is more severe, use frequent, vibration is large, in the time of complete machine work continuous shaking, though be fixedly connected with, but the own wt at two ends and involving from hose assembly, cause distributing valve oil-feed steel pipe assembly 7 weld fatigues to destroy, it is the major reason that occurs that seepage fault is occurred frequently, and the fuel-displaced pipeline of working pump is on high-pressure oil passage, working pressure is higher, the fittings quality using in hydraulic system is had relatively high expectations, distributing valve oil-feed steel pipe assembly 7 in use seepage rate of fault is high, repair and replacement cost is very high.
Summary of the invention
The technical problems to be solved in the utility model is: a kind of hydraulic system converging valve block assembly that has proposed a kind of more reasonable structure, can greatly save manufacture cost, thoroughly solve steel pipe welding fitting weld defect, greatly reduce the rate of fault of hydraulic system, its handling are also more easy, while having solved complete machine work continuous shaking, cause weld fatigue to destroy, there is seepage fault situation occurred frequently, the problem that repair and replacement cost is very high.
In order to solve the problems of the technologies described above, the technical solution of the utility model has been to provide a kind of hydraulic system converging valve block assembly, comprise distributing valve, pressure-gradient control valve, working pump, it is characterized in that, the hydraulic fluid port of described distributing valve is connected with converging valve piece by the fuel-displaced hose assembly of working pump, the hydraulic fluid port of described pressure-gradient control valve is shunted hose assembly by pressure-gradient control valve and is connected with converging valve piece, and converging valve piece is located on working pump.
Preferably, described converging valve piece comprises first interface, and the side of first interface is provided with the second interface, and the right opposite of first interface is provided with the 3rd interface, and the right opposite of the second interface is provided with the 4th interface, and the 4th interface is connected with plug.
Preferably, the 3rd described interface is connected with working pump.
Preferably, described first interface with the second interface one of them be connected with the fuel-displaced hose assembly of working pump.Another is connected with pressure-gradient control valve shunting hose assembly.
Existing distributing valve oil-feed steel-pipe welding assembly is improved to integrated type converging valve piece form by the utility model, save manufacturing cost, improve the reliability of hydraulic system, reduce the complexity of hydraulic system, make the line arrangement of loader hydraulic system more succinctly attractive in appearance, maintenance handling are easier, owing to having cancelled distributing valve oil-feed steel-pipe welding assembly, the quality fault of weld defect is thoroughly resolved, and greatly reduces the rate of fault of hydraulic system.
Brief description of the drawings
Fig. 1 is the partial schematic diagram of former pressure-gradient control valve oil-feed steel-pipe welding assembly in hydraulic system;
Fig. 2 is the schematic diagram of former pressure-gradient control valve oil-feed steel-pipe welding assembly;
Fig. 3 is the plan view of Fig. 2;
Fig. 4 is a kind of structural representation of hydraulic system converging valve block assembly;
Fig. 5 is the sectional view of converging valve piece.
In figure: 1 be distributing valve, 2 for pressure-gradient control valve, 3 for pressure-gradient control valve shunting hose assembly, 4 for working pump, 5 for converging valve piece, 6 for the fuel-displaced hose assembly of working pump, 7 for distributing valve oil-feed steel-pipe welding assembly, 8 be plug.
Embodiment
For the utility model is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
The utility model is a kind of hydraulic system converging valve block assembly, as shown in Figure 4, is a kind of structural representation of hydraulic system converging valve block assembly.It comprises distributing valve 1, pressure-gradient control valve 2, pressure-gradient control valve shunting hose assembly 3, working pump 4, converging valve piece 5, the fuel-displaced hose assembly 6 of working pump, converging valve piece 5 is fixed and is assemblied on rear vehicle frame gear pump by 4 bolts, and the 3rd interface 5-3 of converging valve piece 5 and the hydraulic fluid port of working pump 4 employing square flange round section joint ring seal form.One end of the fuel-displaced hose assembly 6 of working pump adopts the movable internal thread of 24 ° of conical surfaces to be connected on converging valve piece 5, the other end is fixedly connected on by banjo clip supported flange on the hydraulic fluid port of distributing valve 1, pressure-gradient control valve shunting hose assembly 3 one end adopt the movable internal thread of 24 ° of conical surfaces to be connected on converging valve piece 5, and the other end is fixedly connected on the hydraulic fluid port of pressure-gradient control valve 2 by banjo clip supported flange.
As shown in Figure 5, be the sectional view of converging valve piece 5.Converging valve piece 5 comprises first interface 5-1, and the side of first interface 5-1 is provided with the second interface 5-2, and the right opposite of first interface 5-1 is provided with the 3rd interface 5-3, and the right opposite of the second interface 5-2 is provided with the 4th interface 5-4, and the 4th interface 5-4 is connected with plug 8.First interface 5-1 is connected with the fuel-displaced hose assembly 6 of working pump with one of them of the second interface 5-2.Another is connected with pressure-gradient control valve shunting hose assembly 3.
By above-mentioned connection, working pump hydraulic oil approach converging valve piece 5 goes out oil rubber hose by working pump and enters distributing valve 1, and a part of fluid of pressure-gradient control valve 2 is through branching to converging valve piece 5.At the hinged rear point of the forward and backward vehicle frame of loader, on gearbox gear wheel pump, use a converging valve piece 5 to realize the fuel-displaced object of collaborating with pressure-gradient control valve part hydraulic oil of working pump.

Claims (4)

1. a hydraulic system converging valve block assembly, comprise distributing valve (1), pressure-gradient control valve (2), working pump (4), it is characterized in that, the hydraulic fluid port of described distributing valve (1) is connected with converging valve piece (5) by the fuel-displaced hose assembly of working pump (6), the hydraulic fluid port of described pressure-gradient control valve (2) is shunted hose assembly (3) by pressure-gradient control valve and is connected with converging valve piece (5), and converging valve piece (5) is located on working pump (4).
2. a kind of hydraulic system converging valve block assembly as claimed in claim 1, it is characterized in that, described converging valve piece (5) comprises first interface (5-1), the side of first interface (5-1) is provided with the second interface (5-2), the right opposite of first interface (5-1) is provided with the 3rd interface (5-3), the right opposite of the second interface (5-2) is provided with the 4th interface (5-4), and the 4th interface (5-4) is connected with plug (8).
3. a kind of hydraulic system converging valve block assembly as claimed in claim 2, is characterized in that, the 3rd described interface (5-3) is connected with working pump (4).
4. a kind of hydraulic system converging valve block assembly as claimed in claim 2, it is characterized in that, described first interface (5-1) is connected with the fuel-displaced hose assembly of working pump (6) with one of them of the second interface (5-2), and another is connected with pressure-gradient control valve shunting hose assembly (3).
CN201320800342.2U 2013-12-06 2013-12-06 Confluence valve block assembly of hydraulic system Expired - Fee Related CN203655755U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320800342.2U CN203655755U (en) 2013-12-06 2013-12-06 Confluence valve block assembly of hydraulic system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320800342.2U CN203655755U (en) 2013-12-06 2013-12-06 Confluence valve block assembly of hydraulic system

Publications (1)

Publication Number Publication Date
CN203655755U true CN203655755U (en) 2014-06-18

Family

ID=50922146

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320800342.2U Expired - Fee Related CN203655755U (en) 2013-12-06 2013-12-06 Confluence valve block assembly of hydraulic system

Country Status (1)

Country Link
CN (1) CN203655755U (en)

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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: 20140618

Termination date: 20191206