CN105937651A - Rotating assembly capable of effectively decreasing stagger amount of foot operated valve - Google Patents
Rotating assembly capable of effectively decreasing stagger amount of foot operated valve Download PDFInfo
- Publication number
- CN105937651A CN105937651A CN201610334509.9A CN201610334509A CN105937651A CN 105937651 A CN105937651 A CN 105937651A CN 201610334509 A CN201610334509 A CN 201610334509A CN 105937651 A CN105937651 A CN 105937651A
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- CN
- China
- Prior art keywords
- connecting plate
- rotating assembly
- rotating seats
- foot valve
- face
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/62—Pedals or like operating members, e.g. actuated by knee or hip
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
- Lift Valve (AREA)
Abstract
The invention provides a rotating assembly capable of effectively decreasing stagger amount of a foot operated valve. The rotating assembly comprises a connecting plate, wherein left and right rotating seats are arranged on the connecting plate; the rotating seats are connected with the connecting plate through hinge pins; the bottom ends of the two side surfaces of the rotating seats are concave inwards to form end faces; the two ends of the bottom surfaces of the rotating seats are oblique upwards to form upper oblique surfaces; the bottoms of the end faces and the tops of the upper oblique surfaces intersect with each other to form limiting parts; and grooves are formed in the parts, corresponding to the limiting parts of the two rotating seats, on the connecting plate. According to the rotating assembly, through utilizing a surface processing method, the parts where the rotating seats and the connecting plate are in mutual contact are formed through processing of a machine tool, the processing accuracy is uniform, the dimensional tolerances of horizontal distances and vertical distances from the limiting parts in the rotating seats to the centers of the hinge pins, and the dimensional tolerance of horizontal distances from the upper plane of the connecting plate to the centers of the hinge pins are decreased, and the deflection angle difference of the two rotating seats does not exceed the design requirement; and the device is simple in structure, the stagger amount of the two rotating seats of the foot operated valve is effectively decreased, and the ex factory pass rate of the foot operated valve is increased.
Description
Technical field
The present invention relates to a kind of rotating assembly effectively reducing foot valve offset, belong to pilot-actuated valve technical field of structures.
Background technology
Foot valve is mainly used in the pilot hydraulic control system of small type hydraulic excavator and other engineering machinery, is the important component part of pilot control system.In pilot hydraulic control system, foot valve working solution force feed is provided by guide's delivery valve, by controlling foot valve, pilot control hydraulic oil acts on corresponding main valve and controls connection, main valve is driven to control connection valve core movement, implement the corresponding action of executive component, thus meet the action request to executive component of operator.Rotating assembly is one of important ingredient of foot valve.
The rotating assembly of traditional foot valve forms as it is shown in figure 1, it is made up of two rotation seat 1-1, connecting plate 1-2 and pivot pin 1-3.Rotation seat 1-1 is connected with connecting plate 1-2 by pivot pin 1-3, it is achieved rotation seat 1-1 rotates around pivot pin 1-3.Rotation seat 1-1 structure is as in figure 2 it is shown, rotation seat 1-1 has tradition left and right end face 2-1, inclined-plane 2-3 and Conventional limit position 2-2 that both are crossed to form.Connecting plate 1-2 structure is as it is shown on figure 3, connecting plate 1-2 has plane 3-1 traditionally.
When foot valve works, rotation seat 1-1 deflects around pivot pin 1-3, and plane 3-1 traditionally of Conventional limit position 2-2 and the connecting plate 1-2 in rotation seat 1-1 contacts, and stops rotation seat 1-1 too much to deflect.Owing to plane 3-1 traditionally in traditional left and right end face 2-1 and inclined-plane 2-3, the connecting plate 1-2 in rotation seat 1-1 is all black skin, thus determine the horizontal range at Conventional limit position 2-2 to pivot pin 1-3 center in rotation seat 1-1 and vertical dimension size tolerance plane 3-1 traditionally relatively big, connecting plate 1-2 is bigger to the horizontal range dimensional tolerance at pivot pin 1-3 center, thus cause the deflection angle difference of two rotation seats to exceed design requirement, make the fault of foot valve two moving block generation offset, drastically influence the ex factory pass rate of foot valve.
Summary of the invention
The present invention is to solve the technical problem that existing foot valve two moving block staggers.
In order to solve above-mentioned technical problem, the technical scheme is that a kind of rotating assembly effectively reducing foot valve offset of offer, including connecting plate, connecting plate is provided with two rotation seats in left and right, and rotation seat is connected with connecting plate by pivot pin；
It is characterized in that:
The bottom, two sides of described rotation seat is all inwardly recessed, and forms end face；The two ends of described rotation seat bottom surface are all inclined upwardly, and form ramp；Described end bottom and ramp roof intersection, form spacing position；
On described connecting plate, the corresponding position, spacing position with two rotation seats is equipped with groove.
Preferably, described side is parallel with end face.
Preferably, the distance between described left and right described end face is less than the distance between left and right described side.
Preferably, described connecting plate includes upper plane and the lower plane that notch cuttype connects, and in upper plane, the corresponding position, spacing position with two rotation seats is equipped with groove.
Preferably, described end face, ramp, groove are formed by machine tooling.
Preferably, described end face, ramp, groove surface roughness consistent.
The position contacted with each other due to rotation seat and connecting plate is formed by machine tooling, and its roughness, machining accuracy are consistent, therefore can the deflection angle difference of two rotation seats be controlled in design claimed range.
The present invention utilizes the method for finished surface, reduce spacing position in rotation seat to the horizontal range at pivot pin center and vertical dimension size tolerance, connecting plate upper plane to the horizontal range dimensional tolerance at pivot pin center, it is ensured that the deflection angle difference of two rotation seats is less than design requirement.Apparatus structure is simple, effectively reduces the offset of two foot valve rotation seats, improves the ex factory pass rate of foot valve.
Accompanying drawing explanation
Fig. 1 is the rotating assembly front view of tradition foot valve；
Fig. 2 is conventional rotary holder structure schematic diagram；
Fig. 3 is tradition connecting board structure schematic diagram；
The rotating assembly schematic diagram effectively reducing foot valve offset that Fig. 4 provides for the present embodiment；
Fig. 5 is the rotation seat structural representation after improving；
Fig. 6 is the partial enlarged drawing of I part in Fig. 5；
Fig. 7 is the connecting board structure schematic diagram figure after improving；
Fig. 8 is the partial enlarged drawing of II part in Fig. 7.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further.Should be understood that these embodiments are merely to illustrate the present invention rather than limit the scope of the present invention.In addition, it is to be understood that after having read the content that the present invention lectures, the present invention can be made various changes or modifications by those skilled in the art, and these equivalent form of values fall within the application appended claims limited range equally.
The rotating assembly schematic diagram effectively reducing foot valve offset that Fig. 4 provides for the present embodiment, the described rotating assembly effectively reducing foot valve offset is made up of two rotation seat 1-1, connecting plate 1-2 and pivot pin 1-3.It is connected with connecting plate 1-2 by pivot pin 1-3 equipped with two, left and right rotation seat 1-1, rotation seat 1-1 on connecting plate 1-2, it is achieved rotation seat 1-1 rotates around pivot pin 1-3.
The present embodiment is the improvement carried out on the basis of the rotating assembly of tradition foot valve, and the structure that rotation seat and connecting plate contact with each other position respectively is improved.
6-1 bottom, left and right side in conjunction with Fig. 5 and Fig. 6, rotation seat 1-1 is all inwardly recessed, and forms end face 6-2；The two ends, bottom surface of rotation seat 1-1 are inclined upwardly, and form ramp 6-3；Side 6-1 is parallel with end face 6-2, forms spacing position A with ramp 6-3 roof intersection bottom end face 6-2.
Inclined-plane 6-3, left and right end face 6-2 are all to utilize machine tooling to be formed.
Because rotation seat side is inwardly recessed, the distance between the most left and right end face 6-2 is less than the distance between the 6-1 of left and right side.
Including, in conjunction with Fig. 7 and Fig. 8, connecting plate 1-2, upper plane and the lower plane that notch cuttype connects, in upper plane, A corresponding position, spacing position with two rotation seat 1-1 is equipped with groove 8-1, groove 8-1 and utilizes machine tooling to be formed.
The position contacted with each other due to rotation seat and connecting plate is formed by machine tooling, its roughness, precision are consistent, thus reduce horizontal range and the vertical dimension size tolerance at spacing position A to pivot pin pivot pin 1-3 center in rotation seat 1-1, decrease the horizontal range dimensional tolerance to pivot pin 1-3 center bottom the groove 8-1 of connecting plate 1-2, guarantee that the deflection angle difference of two rotation seats is less than design requirement, so foot valve rotation seat offset is efficiently reduced.
Claims (6)
1. effectively reduce a rotating assembly for foot valve offset, including connecting plate (1-2), connecting plate (1-2)
Being provided with two rotation seats (1-1) in left and right, rotation seat (1-1) is by pivot pin (1-3) and connecting plate (1-2)
Connect；
It is characterized in that:
Two sides (6-1) bottom of described rotation seat (1-1) is all inwardly recessed, and forms end face (6-2)；Institute
The two ends stating rotation seat (1-1) bottom surface are all inclined upwardly, and form ramp (6-3)；Described end face (6-2)
Bottom and ramp (6-3) roof intersection, form spacing position；
The upper corresponding position, spacing position with two rotation seats (1-1) of described connecting plate (1-2) is equipped with groove (8-1).
A kind of rotating assembly effectively reducing foot valve offset, it is characterised in that:
Described side (6-1) is parallel with end face (6-2).
A kind of rotating assembly effectively reducing foot valve offset, its feature exists
In: the distance between left and right described end face (6-2) is less than the distance between left and right described side (6-1).
A kind of rotating assembly effectively reducing foot valve offset, it is characterised in that:
Described connecting plate (1-2) includes upper plane and the lower plane that notch cuttype connects, with two rotation seats in upper plane
(1-1) corresponding position, spacing position is equipped with groove (8-1).
A kind of rotating assembly effectively reducing foot valve offset, it is characterised in that:
Described end face (6-2), ramp (6-3), groove (8-1) are formed by machine tooling.
6. a kind of rotating assembly effectively reducing foot valve offset as described in claim 1 or 5, its feature exists
In: described end face (6-2), ramp (6-3), groove (8-1) surface roughness consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334509.9A CN105937651B (en) | 2016-05-19 | 2016-05-19 | A kind of rotating assembly for effectively reducing foot valve offset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334509.9A CN105937651B (en) | 2016-05-19 | 2016-05-19 | A kind of rotating assembly for effectively reducing foot valve offset |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105937651A true CN105937651A (en) | 2016-09-14 |
| CN105937651B CN105937651B (en) | 2018-06-19 |
Family
ID=57152494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610334509.9A Active CN105937651B (en) | 2016-05-19 | 2016-05-19 | A kind of rotating assembly for effectively reducing foot valve offset |
Country Status (1)
| Country | Link |
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| CN (1) | CN105937651B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2786401B2 (en) * | 1994-11-10 | 1998-08-13 | 川崎重工業株式会社 | Hydraulic operation valve |
| JP3655280B2 (en) * | 2002-12-05 | 2005-06-02 | 株式会社カワサキプレシジョンマシナリ | Valve operating machine and pilot valve equipped with it |
| CN201236972Y (en) * | 2008-07-02 | 2009-05-13 | 浙江苏强格液压有限公司 | Variable pin pilot valve |
| CN202691260U (en) * | 2012-07-24 | 2013-01-23 | 中联重科股份有限公司渭南分公司 | Pilot Foot Valve and Excavator |
| CN103603993A (en) * | 2013-11-29 | 2014-02-26 | 钟细环 | Novel foot valve |
| CN103672138A (en) * | 2013-12-20 | 2014-03-26 | 龙工（上海）精工液压有限公司 | Single-pedal type foot valve |
| CN206246811U (en) * | 2016-05-19 | 2017-06-13 | 龙工（上海）精工液压有限公司 | Effectively reduce the rotating assembly of foot valve offset |
-
2016
- 2016-05-19 CN CN201610334509.9A patent/CN105937651B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2786401B2 (en) * | 1994-11-10 | 1998-08-13 | 川崎重工業株式会社 | Hydraulic operation valve |
| JP3655280B2 (en) * | 2002-12-05 | 2005-06-02 | 株式会社カワサキプレシジョンマシナリ | Valve operating machine and pilot valve equipped with it |
| CN201236972Y (en) * | 2008-07-02 | 2009-05-13 | 浙江苏强格液压有限公司 | Variable pin pilot valve |
| CN202691260U (en) * | 2012-07-24 | 2013-01-23 | 中联重科股份有限公司渭南分公司 | Pilot Foot Valve and Excavator |
| CN103603993A (en) * | 2013-11-29 | 2014-02-26 | 钟细环 | Novel foot valve |
| CN103672138A (en) * | 2013-12-20 | 2014-03-26 | 龙工（上海）精工液压有限公司 | Single-pedal type foot valve |
| CN206246811U (en) * | 2016-05-19 | 2017-06-13 | 龙工（上海）精工液压有限公司 | Effectively reduce the rotating assembly of foot valve offset |
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| Publication number | Publication date |
|---|---|
| CN105937651B (en) | 2018-06-19 |
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