CN208749704U - A kind of speed governing valve - Google Patents
A kind of speed governing valve Download PDFInfo
- Publication number
- CN208749704U CN208749704U CN201821219974.9U CN201821219974U CN208749704U CN 208749704 U CN208749704 U CN 208749704U CN 201821219974 U CN201821219974 U CN 201821219974U CN 208749704 U CN208749704 U CN 208749704U
- Authority
- CN
- China
- Prior art keywords
- adjusting rod
- spool
- valve
- speed governing
- nut
- 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
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model provides a kind of speed governing valve, including valve seat, adjusting rod external member, spool and spring；Wherein valve seat includes external thread part, installs and put forth effort portion, the excessive inclined-plane between portion is puted forth effort in external thread part and installation, the inside of valve seat further includes the adjusting rod mounting portion for approaching installation and putting forth effort portion one end, and the throttling chamber of opening is formed towards external thread part one end, there is the oil inlet being connected to internal restriction chamber on the excessive inclined-plane；The utility model speed governing valve replaces traditional slide valve by spool, adjusting rod is mounted in throttling chamber simultaneously, spool is mounted in throttling chamber, pressure is provided by the spring to mount elastically, and the position of spool is limited by nut B, the pressure size that spool is given by adjustment spring can control the oil inlet speed for adjusting oil cylinder；Meanwhile the internal structure of the utility model is simple, reduces production cost.
Description
Technical field
The utility model relates to the components of hydraulic system more particularly to a kind of speed governing valves.
Background technique
One-way speed-regulating valve is widely used in the speed control of machinery hydraulic system, and workpiece is made to realize unidirectional stepless-adjustment
Speed.
Existing tradition one-way speed-regulating valve includes valve body, adjusting handle, flow control rod, throttling valve core, slide valve, adjusts spiral shell
Seat and spring base.Hydraulic oil enters throttling chamber through oil inlet passage by pumping plant, by throttling valve core, flow control rod, adjusts hand
The throttle mechanism that wheel and adjusting spiral shell seat collectively form enters operating cylinder by oil discharge passage after carrying out step-less adjustment flow, from
And the speed of operating cylinder is made to carry out stepless speed regulation.Conversely, hydraulic oil after oil discharge passage opens slide valve, is flowed into through oil inlet passage
The oil back chamber of pumping plant, such operating cylinder can quick counter motions.Although this one-way speed-regulating valve can make workpiece real
Now unidirectional stepless speed regulation, but when operating cylinder quickly returns, need a higher pressure to open slide valve, so should not be low
It pushes back in road and uses.It is separately placed in valve body in cross bore by throttle mechanism and slide valve simultaneously, so that the speed governing valve volume is big,
Structure is sufficiently complex, but also needs mostly several fabrication holes, increases outer leakage link, manufacture difficulty is also big, at high cost, makes
With being limited by huge shape in the process.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of speed governing valve, it is able to reality by the following technical programs
It is existing.
A kind of speed governing valve provided by the utility model, including valve seat, adjusting rod external member, spool and spring；Wherein valve seat packet
It includes external thread part, portion of putting forth effort is installed, the excessive inclined-plane between portion is puted forth effort in external thread part and installation, and the inside of valve seat further includes approaching
The adjusting rod mounting portion of portion one end is puted forth effort in installation, and the throttling chamber of opening, the excessive inclined-plane are formed towards external thread part one end
On have the oil inlet being connected to internal restriction chamber；
Further, the adjusting rod external member includes adjusting rod and spring base, and adjusting rod is fixed on by nut A
On adjusting rod mounting portion in valve seat；The other end of adjusting rod is equipped with the nut C of spring base and fixed spring seat, adjusts
The intermediate position of bar is equipped with spool, and spring is equipped between spool and spring base.
Further, there are also nut B between spring base more than the adjusting rod upper valve core.
Further, on adjusting rod of the installation site of the nut B between the port and spring base of throttling chamber.
Further, the nut C is double nuts structure.
Further, the oil inlet at least there are four.
The utility model has the beneficial effects that: the utility model speed governing valve replaces traditional slide valve by spool, simultaneously
Adjusting rod is mounted in throttling chamber, spool is mounted in throttling chamber, provides pressure by the spring to mount elastically,
And by nut B limit spool position, the pressure size of spool is given by adjustment spring, can control adjust oil cylinder into
Speed oil；Meanwhile the internal structure of the utility model is simple, reduces production cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure: portion, the excessive inclined-plane 13-, 131- oil inlet, 14- adjusting are puted forth effort in 1- valve seat, 11- external thread part, 12- installation
Bar mounting portion, 15- throttling chamber, 21- adjusting rod, 22- nut A, 23- nut B, 24- spring base, 25- nut C, 3- spool, 4- bullet
Spring.
Specific embodiment
Be described further below the technical solution of the utility model, but claimed range be not limited to it is described.
A kind of speed governing valve as shown in Figure 1, including valve seat 1, adjusting rod external member, spool 3 and spring 4；Wherein valve seat 1 includes
External thread part 11, installation put forth effort portion 12, and the excessive inclined-plane 13 between portion 12, the inside of valve seat 1 are puted forth effort in external thread part 11 and installation
Further include the adjusting rod mounting portion 14 for approaching installation and putting forth effort 12 one end of portion, and forms the throttling of opening towards 11 one end of external thread part
Chamber 15 has the oil inlet 131 being connected to internal restriction chamber 15 on the excessive inclined-plane 13；The adjusting rod external member includes adjusting
Bar 21 and spring base 24, adjusting rod 21 are fixed on the adjusting rod mounting portion 14 in valve seat 1 by nut A22；Adjusting rod
21 other end is equipped with the nut C25 of spring base 24 and fixed spring seat 24, and the intermediate position of adjusting rod 21 is equipped with valve
Core 3 is equipped with spring 4 between spool 3 and spring base 24.Between more than 3 spring base 24 of 21 upper valve core of adjusting rod also
Nut B23.The installation site of the nut B23 is on the adjusting rod 21 between the port and spring base 24 of throttling chamber 15.Institute
The nut C25 stated is double nuts structure.The oil inlet 131 at least there are four.
The device is mounted on oil inlet passage, then hydraulic oil is reached through oil inlet passage by the speed governing valve by pumping plant
In oil cylinder, when passing through speed governing valve, under pumping plant effect, spool is pushed toward the direction far from valve seat 1 and is moved by hydraulic oil, so that
Speed governing valve forms access, also, can be adjusted by the nut C25 on adjusting rod 21 in the compression degree of spring 4, with this, rises
It is acted on to speed regulation.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
It also should be regarded as the protection scope of the utility model into replacement.
Claims (5)
1. a kind of speed governing valve, including valve seat (1), adjusting rod external member, spool (3) and spring (4), it is characterised in that: wherein valve seat
(1) include external thread part (11), install and put forth effort portion (12), the excessive inclined-plane between portion (12) is puted forth effort in external thread part (11) and installation
(13), the inside of valve seat (1) further includes the adjusting rod mounting portion (14) for putting forth effort portion (12) one end close to installation, and towards external screw thread
Portion (11) one end forms the throttling chamber (15) of opening, has the oil inlet being connected to internal restriction chamber (15) on the excessive inclined-plane (13)
Mouth (131)；
The adjusting rod external member includes adjusting rod (21) and spring base (24), and adjusting rod (21) is solid by nut A (22) installation
It is scheduled on the adjusting rod mounting portion (14) in valve seat (1)；The other end of adjusting rod (21) is equipped with spring base (24), and fixed
The nut C (25) of spring base (24), the intermediate position of adjusting rod (21) are equipped with spool (3), in spool (3) and spring base (24)
Between spring (4) are installed.
2. speed governing valve as described in claim 1, it is characterised in that: spring base more than adjusting rod (21) upper valve core (3)
(24) there are also nut B (23) between.
3. speed governing valve as described in claim 1, it is characterised in that: the installation site of the nut B (23) is in throttling chamber
(15) on the adjusting rod (21) between port and spring base (24).
4. speed governing valve as described in claim 1, it is characterised in that: the nut C (25) is double nuts structure.
5. speed governing valve as described in claim 1, it is characterised in that: the oil inlet (131) at least there are four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821219974.9U CN208749704U (en) | 2018-07-31 | 2018-07-31 | A kind of speed governing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821219974.9U CN208749704U (en) | 2018-07-31 | 2018-07-31 | A kind of speed governing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208749704U true CN208749704U (en) | 2019-04-16 |
Family
ID=66059479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821219974.9U Expired - Fee Related CN208749704U (en) | 2018-07-31 | 2018-07-31 | A kind of speed governing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208749704U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692154A (en) * | 2020-06-23 | 2020-09-22 | 三一海洋重工有限公司 | Speed limiting valve |
-
2018
- 2018-07-31 CN CN201821219974.9U patent/CN208749704U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692154A (en) * | 2020-06-23 | 2020-09-22 | 三一海洋重工有限公司 | Speed limiting valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190416 Termination date: 20210731 |