CN104653829A - Novel embedded safety valve of lifting pump of dump truck - Google Patents
Novel embedded safety valve of lifting pump of dump truck Download PDFInfo
- Publication number
- CN104653829A CN104653829A CN201310595499.0A CN201310595499A CN104653829A CN 104653829 A CN104653829 A CN 104653829A CN 201310595499 A CN201310595499 A CN 201310595499A CN 104653829 A CN104653829 A CN 104653829A
- Authority
- CN
- China
- Prior art keywords
- spring
- valve
- valve body
- safety valve
- lifting pump
- 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.)
- Withdrawn
Links
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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
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- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
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- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses design development and application of a novel embedded safety valve of a lifting pump of a dump truck, and belongs to the technical field of modern manufacturing engineering. The novel embedded safety valve comprises a valve element, a valve body, a spring seat, a spring and a pressure regulation nut; a liquid inlet is formed in the middle part of the left end of the valve body, and while a liquid outlet is formed in the lower end, close to the left part of the valve boy; the valve element is fixedly arranged in the valve body; the front end of the valve element passes through the liquid inlet, and while the rear end of the valve element is fixedly connected with the spring seat; the rear end of the spring base is fixedly connected with the spring; the front end of the pressure regulation nut is equipped with the spring, and while the rear end of the pressure regulation unit is closed; a damping hole is formed in the pressure regulation nut. The novel embedded safety valve of the lifting pump of the dump truck is reasonable in design, and simple in structure; that the spring is impacted by high-pressure and high-speed liquid to generate resonance which leads to breaking of the spring can be avoided; the valve element is dynamically matched with the valve body through a s H7/ H6 mall clearance, thus the concentricity of the valve element and the valve body is ensured, and the valve element is prevented from being transversely vibrated due to the vortex generated by the high-pressure and high-speed liquid; an annular clearance between the spring seat and the valve body has the damping effect.
Description
Technical field
The present invention relates to modern Manufacturing Engineering apparatus, specifically the embedded safety valve of a kind of novel dump lorry lifting pump.
Background technique
Dumping car driver is for increasing work efficiency; elevating ram is shot out; in actual mechanical process; often step on the gas too hard; lifting pump is caused often to bear moment overload impact; and the safety valve of hoisting system can not be opened sometimes in time, lifting pump impacts because being under pressure and lost efficacy, therefore is necessary that arranging embedded safety valve in lifting pump inside realizes self overload protection.The embedded safety valve of existing Tipper Lifting pump adopts the design of Static Design reason, and the high vibration usually due to embedded safety valve spool and spring in unloading process, causes spring breakage to be lost efficacy.
In order to well solve the problem, the invention provides the embedded safety valve of a kind of novel dump lorry lifting pump.
Summary of the invention
The technical solution adopted for the present invention to solve the technical problems is: designing and developing and application of the embedded safety valve of a kind of novel dump lorry lifting pump, comprise spool, valve body, spring seat, spring and look nut, liquid entering hole is provided with in the middle part of described valve body left end, the lower end portion of keeping left is provided with liquid outlet, described valve inner is fixed with spool, described spool front end is through liquid entering hole, rear end is fixedly connected with spring seat, described spring pedestal rear end is fixedly connected with spring, described look nut front end is provided with spring rear end and closes, and described look nut is provided with damping hole.
Described spool with adopt between valve body that H7/h6 small―gap suture is dynamic to be coordinated.
Described safety valve is provided with damping hole on look nut.
The invention has the beneficial effects as follows: reasonable in design, structure is simple, and the reasonable design overflow ducts of liquid, avoids high-voltage high-speed hydraulic shock spring and produce resonance, thus causing spring breakage.Existing its valve body of embedded safety valve does not have leading role to spool, valve pocket is entered when fluid backs down spool, spool also has transverse vibration except travelling forward, spool of the present invention with adopt between valve body that H7/h6 small―gap suture is dynamic to be coordinated, ensure that the concentricity of spool and valve body, prevent spool from causing the transverse vibration of spool because of whirlpool that high-voltage high-speed liquid produces, damping hole is not had in the structure of existing embedded safety valve, and the safety valve of the present invention's design is provided with damping hole on look nut, the effect of damping is also played in the annulus that spring seat and valve body are formed, damping hole effectively can suppress the vibration of spool and spring, noise decrease.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
In figure: 1, spool; 2, valve body; 3, spring seat; 4, spring; 5, look nut; 6, liquid entering hole; 7, liquid outlet; 8, damping hole; 9, annular damper.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described below:
As shown in Figure 1, the embedded safety valve of a kind of novel dump lorry lifting pump, belong to modern Manufacturing Engineering technical field, comprise spool 1, valve body 2, spring seat 3, spring 4 and look nut 5, liquid entering hole 6 is provided with in the middle part of described valve body 2 left end, the lower end portion of keeping left is provided with liquid outlet 7, described valve body 2 inside is fixed with spool 1, described spool 1 front end is through liquid entering hole 6, rear end is fixedly connected with spring seat 3, described spring seat 3 rear end is fixedly connected with spring 4, described look nut 5 front end is provided with spring 4 back-end closure, described look nut 5 is provided with damping hole 8, described valve body 2 inside is provided with annular damper 9, its working principle is: when the working pressure of lifting pump increases suddenly, when exceeding the pressure that safety valve limits, spool moves axially along valve body hole under fluid pressure effect, spool is opened under fluid pressure effect, Compress Spring, high-voltage high-speed liquid is not through spring chamber, but directly flow out from 4 radial symmetric liquid outlets on valve body circumference wall, realize instantaneous quick relief, thus ensure that the safety of hydraulic system.When after pressure balance, under spring force, valve core reset, returns to former setting state.The present invention is reasonable in design, structure is simple, and the reasonable design overflow ducts of liquid, avoids high-voltage high-speed hydraulic shock spring and produce resonance, thus causing spring breakage.Existing its valve body of embedded safety valve does not have leading role to spool, valve pocket is entered when fluid backs down spool, spool also has transverse vibration except travelling forward, spool of the present invention with adopt between valve body that H7/h6 small―gap suture is dynamic to be coordinated, ensure that the concentricity of spool and valve body, prevent spool from causing the transverse vibration of spool because of whirlpool that high-voltage high-speed liquid produces, damping hole is not had in the structure of existing embedded safety valve, and the safety valve of the present invention's design is provided with damping hole on look nut, the effect of damping is also played in the annulus that spring seat and valve body are formed, damping hole effectively can suppress the vibration of spool and spring, noise decrease.
Claims (3)
1. the embedded safety valve of novel dump lorry lifting pump, comprise spool, valve body, spring seat, spring and look nut, it is characterized in that: in the middle part of described valve body left end, be provided with liquid entering hole, the lower end portion of keeping left is provided with liquid outlet, and described valve inner is fixed with spool, and described spool front end is through liquid entering hole, rear end is fixedly connected with spring seat, described spring pedestal rear end is fixedly connected with spring, and described look nut front end is provided with spring rear end and closes, and described look nut is provided with damping hole.
2. the embedded safety valve of novel dump lorry lifting pump according to claim 1, is characterized in that: described spool with adopt between valve body that H7/h6 small―gap suture is dynamic to be coordinated.
3. the embedded safety valve of novel dump lorry lifting pump according to claim 1, is characterized in that: described safety valve is provided with damping hole on look nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310595499.0A CN104653829A (en) | 2013-11-25 | 2013-11-25 | Novel embedded safety valve of lifting pump of dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310595499.0A CN104653829A (en) | 2013-11-25 | 2013-11-25 | Novel embedded safety valve of lifting pump of dump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104653829A true CN104653829A (en) | 2015-05-27 |
Family
ID=53245291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310595499.0A Withdrawn CN104653829A (en) | 2013-11-25 | 2013-11-25 | Novel embedded safety valve of lifting pump of dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104653829A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555882A (en) * | 2019-01-21 | 2019-04-02 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of safety valve suitable for oil-filled cabinet |
| JP2019190599A (en) * | 2018-04-26 | 2019-10-31 | 北越工業株式会社 | Follow-up pressure valve |
-
2013
- 2013-11-25 CN CN201310595499.0A patent/CN104653829A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019190599A (en) * | 2018-04-26 | 2019-10-31 | 北越工業株式会社 | Follow-up pressure valve |
| JP7160552B2 (en) | 2018-04-26 | 2022-10-25 | 北越工業株式会社 | Pressure holding valve |
| CN109555882A (en) * | 2019-01-21 | 2019-04-02 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of safety valve suitable for oil-filled cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20150527 |