CN105937651B - A kind of rotating assembly for effectively reducing foot valve offset - Google Patents
A kind of rotating assembly for effectively reducing foot valve offset Download PDFInfo
- Publication number
- CN105937651B CN105937651B CN201610334509.9A CN201610334509A CN105937651B CN 105937651 B CN105937651 B CN 105937651B CN 201610334509 A CN201610334509 A CN 201610334509A CN 105937651 B CN105937651 B CN 105937651B
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- China
- Prior art keywords
- connecting plate
- foot valve
- rotation seat
- rotation
- rotating assembly
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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 present invention provides a kind of rotating assemblies for effectively reducing foot valve offset, and including connecting plate, connecting plate is equipped with two rotation seats in left and right, and rotation seat is connect by pivot pin with connecting plate；The two sides bottom end of rotation seat is inwardly recessed, and forms end face；The both ends of rotation seat bottom surface tilt upwards, form ramp；End bottom and ramp roof intersection form limiting position；Limiting position corresponding position on connecting plate with two rotation seats is equipped with groove.The method that the present invention utilizes finished surface, the position that rotation seat and connecting plate contact with each other is formed by machine tooling, its machining accuracy is consistent, it reduces and position is limited in rotation seat to horizontal distance and vertical range size tolerance, the horizontal distance dimensional tolerance of the upper plane of connecting plate to pivot pin center at pivot pin center, it is ensured that the deflection angle difference of two rotation seats is no more 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.
Description
Technical field
The present invention relates to a kind of rotating assemblies for effectively reducing foot valve offset, belong to pilot control valve structure technology neck
Domain.
Background technology
Foot valve is mainly used for the pilot hydraulic control system of small type hydraulic excavator and other engineering machinery, is guide's control
The important component of system processed.In pilot hydraulic control system, foot valve working solution pressure oil is provided by guide's delivery valve, is led to
Control foot valve is crossed, pilot control hydraulic oil acts on corresponding main valve control connection, and driving main valve control connection valve core movement is real
It applies executive component to act accordingly, so as to meet the action request to executive component of operator.Rotating assembly is foot valve weight
One of component part wanted.
The rotating assembly of traditional foot valve is formed as shown in Figure 1, it is by two rotation seat 1-1, connecting plate 1-2 and axis
Sell 1-3 compositions.Rotation seat 1-1 is connect by pivot pin 1-3 with connecting plate 1-2, realizes that rotation seat 1-1 is rotated around pivot pin 1-3.Rotation
Seat 1-1 structures are as shown in Fig. 2, rotation seat 1-1 possesses the tradition limit that traditional left and right end face 2-1, inclined-plane 2-3 and the two are crossed to form
Position position 2-2.Connecting plate 1-2 structures are as shown in figure 3, connecting plate 1-2 possesses traditionally plane 3-1.
When foot valve works, rotation seat 1-1 is deflected around pivot pin 1-3, the Conventional limit position 2-2 in rotation seat 1-1 with
The traditionally plane 3-1 contacts of connecting plate 1-2, prevent rotation seat 1-1 from excessively deflecting.Due to the tradition left and right in rotation seat 1-1
Traditionally plane 3-1 in end face 2-1 and inclined-plane 2-3, connecting plate 1-2 is black skin, is passed so as to determine in rotation seat 1-1
System limiting position 2-2 to pivot pin 1-3 centers horizontal distance and vertical range size tolerance be larger, connecting plate 1-2 traditionally
The horizontal distance dimensional tolerance at plane 3-1 to pivot pin 1-3 centers is larger, is more than so as to cause the deflection angle difference of two rotation seats
Design requirement makes two moving block of foot valve that the failure of offset occur, and drastically influences the ex factory pass rate of foot valve.
Invention content
The present invention is to solve the technical issues of existing two moving block of foot valve is staggered.
In order to solve the above-mentioned technical problem, the technical scheme is that providing a kind of foot valve offset of effectively reducing
Rotating assembly, including connecting plate, connecting plate is equipped with two rotation seats in left and right, and rotation seat is connect by pivot pin with connecting plate；
It is characterized in that：
The two sides bottom end of the rotation seat is inwardly recessed, and forms end face；The both ends of the rotation seat bottom surface are upward
It tilts, forms ramp；The end bottom and ramp roof intersection form limiting position；
Limiting position corresponding position on the connecting plate with two rotation seats is equipped with groove.
Preferably, the 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, the connecting plate includes the upper plane and lower plane of stepped connection, in upper plane with two rotation seats
Limiting position corresponding position be equipped with groove.
Preferably, the end face, ramp, groove are formed by machine tooling.
Preferably, the end face, ramp, the surface roughness of groove are consistent.
Since the position that rotation seat and connecting plate contact with each other is formed by machine tooling, roughness, machining accuracy one
It causes, therefore the deflection angle difference of two rotation seats can be controlled in the range of design requirement.
The present invention utilize finished surface method, reduce in rotation seat limit position to pivot pin center horizontal distance with
The horizontal distance dimensional tolerance of vertical range size tolerance, the upper plane of connecting plate to pivot pin center, it is ensured that two rotation seats it is inclined
Gyration difference is no more than design requirement.Apparatus structure is simple, effectively reduces the offset of two foot valve rotation seats, improves foot
Step on the ex factory pass rate of valve.
Description of the drawings
Fig. 1 is the rotating assembly front view of traditional foot valve；
Fig. 2 is conventional rotary holder structure schematic diagram；
Fig. 3 is traditional connecting board structure schematic diagram；
Fig. 4 is the rotating assembly schematic diagram provided in this embodiment for effectively reducing foot valve offset；
Fig. 5 is improved rotation seat structure diagram；
Fig. 6 is the partial enlarged view of I parts in Fig. 5；
Fig. 7 is improved connecting board structure schematic diagram figure；
Fig. 8 is the partial enlarged view of II part in Fig. 7.
Specific embodiment
With reference to specific embodiment, the present invention is further explained.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, people in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
Fig. 4 is the rotating assembly schematic diagram provided in this embodiment for effectively reducing foot valve offset, and described effectively subtracts
The rotating assembly of small foot valve offset is made of two rotation seat 1-1, connecting plate 1-2 and pivot pin 1-3.It is filled on connecting plate 1-2
There are the two rotation seat 1-1 in left and right, rotation seat 1-1 to be connect by pivot pin 1-3 with connecting plate 1-2, realize rotation seat 1-1 around pivot pin 1-
3 rotations.
The present embodiment is the improvement carried out on the basis of the rotating assembly of traditional foot valve, respectively to rotation seat and connection
The structure for contacting with each other position of plate is improved.
With reference to Fig. 5 and Fig. 6, the left and right side 6-1 bottom ends of rotation seat 1-1 are inwardly recessed, and form end face 6-2；Rotation seat
The bottom surface both ends of 1-1 tilt upwards, form ramp 6-3；Side 6-1 is parallel with end face 6-2, end face 6-2 bottoms and ramp
6-3 roof intersections form limiting position A.
Inclined-plane 6-3, left and right end face 6-2 are formed using machine tooling.
Because rotation seat side is inwardly recessed, thus the distance between left and right end face 6-2 be less than left and right side 6-1 it
Between distance.
With reference to Fig. 7 and Fig. 8, connecting plate 1-2 includes the upper plane and lower plane of stepped connection, turns in upper plane with two
The limiting position A corresponding positions of dynamic seat 1-1 are equipped with groove 8-1, and groove 8-1 is formed using machine tooling.
Since the position that rotation seat and connecting plate contact with each other is formed by machine tooling, roughness, precision are consistent, from
And reduce and position A is limited in rotation seat 1-1 to the horizontal distance at pivot pin pivot pin 1-3 centers and vertical range size tolerance,
Reduce the groove 8-1 bottoms of connecting plate 1-2 to the horizontal distance dimensional tolerance at pivot pin 1-3 centers, it is ensured that two rotation seats it is inclined
Gyration difference is no more than design requirement, so foot valve rotation seat offset is efficiently reduced.
Claims (6)
1. a kind of rotating assembly for effectively reducing foot valve offset, including connecting plate (1-2), connecting plate (1-2) is equipped with a left side
Right two rotation seats (1-1), rotation seat (1-1) are connect by pivot pin (1-3) with connecting plate (1-2)；
It is characterized in that：
Two sides (6-1) bottom end of the rotation seat (1-1) is inwardly recessed, and is formed end face (6-2)；The rotation seat (1-1)
The both ends of bottom surface tilt upwards, form ramp (6-3)；End face (6-2) bottom and ramp (6-3) roof intersection,
Form limiting position；
Limiting position corresponding position on the connecting plate (1-2) with two rotation seats (1-1) is equipped with groove (8-1).
2. a kind of rotating assembly for effectively reducing foot valve offset as described in claim 1, it is characterised in that：The side
(6-1) is parallel with end face (6-2).
3. a kind of rotating assembly for effectively reducing foot valve offset as claimed in claim 1 or 2, it is characterised in that：It is left and right
The distance between described end face (6-2) is less than the distance between left and right described side (6-1).
4. a kind of rotating assembly for effectively reducing foot valve offset as described in claim 1, it is characterised in that：The connection
Plate (1-2) includes the upper plane and lower plane of stepped connection, corresponding with the limiting position of two rotation seats (1-1) in upper plane
Place is equipped with groove (8-1).
5. a kind of rotating assembly for effectively reducing foot valve offset as described in claim 1, it is characterised in that：The end face
(6-2), ramp (6-3), groove (8-1) are formed by machine tooling.
6. a kind of rotating assembly for effectively reducing foot valve offset as described in claim 1 or 5, it is characterised in that：It is described
End face (6-2), ramp (6-3), the surface roughness of groove (8-1) are 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 CN105937651A (en) | 2016-09-14 |
| CN105937651B true 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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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 pedal 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 pedal 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105937651A (en) | 2016-09-14 |
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