CN204199357U - Automatic pressure control device in a kind of hydraulic breaking hammer - Google Patents
Automatic pressure control device in a kind of hydraulic breaking hammer Download PDFInfo
- Publication number
- CN204199357U CN204199357U CN201420603408.3U CN201420603408U CN204199357U CN 204199357 U CN204199357 U CN 204199357U CN 201420603408 U CN201420603408 U CN 201420603408U CN 204199357 U CN204199357 U CN 204199357U
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- China
- Prior art keywords
- valve seat
- valve
- control device
- hydraulic breaking
- pressure control
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 124
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 64
- 238000003860 storage Methods 0.000 claims abstract description 25
- 230000001105 regulatory effect Effects 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 4
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims abstract description 3
- 230000000630 rising effect Effects 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 description 9
- 230000006837 decompression Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Percussive Tools And Related Accessories (AREA)
Abstract
The utility model discloses the automatic pressure control device in a kind of hydraulic breaking hammer, comprise quartering hammer upper cylinder body, in described quartering hammer upper cylinder body, there is nitrogen storage chamber, described quartering hammer upper cylinder body is provided with the inflated with nitrogen system be communicated with nitrogen storage chamber and the pressure regulating system that can regulate nitrogen storage intracavity gas pressure, the utility model breaches the rising inoperable bottleneck of hydraulic breaking hammer because of interior ambient temperature effectively, achieve the automatic adjustment of nitrogen pressure, reduce the requirement to operator's technical ability, improve operating efficiency.
Description
Technical field
The utility model relates to a kind of hydraulic breaking hammer used in mining, metallurgy, railway, highway, municipal gardens, building, boats and ships etc., relates in particular to the automatic pressure control device in hydraulic breaking hammer.
Background technology
Hydraulic breaking hammer is mounted in excavator, the installation bucket of loader or the position of bunker, is used for broken stone, rock etc.
The operating principle of hydraulic breaking hammer is: with the hydraulic pump pressure oil output of excavator, loader for power, moved back and forth by flat valve control piston.During stroke, in quartering hammer, the back cavity of cylinder enters high pressure liquid force feed, and piston is impacted drill steel cutter crushed rocks under the acting in conjunction of the compressed nitrogen in upper cylinder half and hydraulic oil; During backhaul, middle cylinder ante-chamber connects hydraulic oil, moves and the nitrogen in upper cylinder body is compressed, complete a working cycles like this after promoting piston.The stroke that piston goes round and begins again, backhaul, make drill steel impact grinding rock, stone, concrete etc.
In use, in upper cylinder body, the temperature of nitrogen can raise hydraulic breaking hammer, and the nitrogen gradually bulbs of pressure increases, and the broken unable or phenomenon that do not work appears in quartering hammer gradually.Through on-the-spot investigation in large quantities, occur that the reason of this phenomenon is mainly manifested in two aspects: one be hydraulic breaking hammer along with increasing continuous service time, the temperature of hydraulic oil can raise, and heat is little by little delivered in upper cylinder body by piston.Nitrogen in upper cylinder body along with temperature raise, pressure increases gradually, and on piston, end pressure is greater than lower end, causes the not in place or not backhaul of backward stroke of the piston, occurs the broken unable or phenomenon that do not work of quartering hammer.Two be along with environment temperature raise, also there is same phenomenon in nitrogen expansion pressure increase.Especially in combined influence in summer both, at 1 hours, just there is the situation of cisco unity malfunction in the quartering hammer working time.This phenomenon seriously constrains crushing efficiency and construction speed, uses bring very burden to user.
Current solution is: when having occurred that quartering hammer does not work, and manually the charge valve that upper cylinder half is arranged is opened exhaust decompression.The weak point of this mode is the bad control of the size of capacity.There will be two kinds of situations in operation for the operator that do not enrich of experience: one is that pressure does not lower; Two is that pressure drop is too large.The appearance of both of these case, quartering hammer still cannot normally work.
This drawback is the deficiency in hydraulic breaking hammer design, brings great trouble to the use of user.Along with the input of domestic city infrastructure construction continues to increase, the exploitation of outdoor mining industry prohibits the use blasting procedure, and hydraulic breaking hammer consumption is increasing.In this design process, unheeded wretched insufficiency, in the urgent need to address.
Utility model content
Problem to be solved in the utility model be to provide a kind of can effectively solve hydraulic breaking hammer in use Yin Wendu raise the automatic pressure control device of the cisco unity malfunction caused.
In order to solve the problem, the utility model by the following technical solutions:
Automatic pressure control device in a kind of hydraulic breaking hammer, comprise quartering hammer upper cylinder body, in described quartering hammer upper cylinder body, there is nitrogen storage chamber, described quartering hammer upper cylinder body is provided with the inflated with nitrogen system be communicated with nitrogen storage chamber and the pressure regulating system that can regulate nitrogen storage intracavity gas pressure.
Below the further optimization of the utility model to such scheme:
Inflated with nitrogen system comprises the valve seat be fixedly connected with quartering hammer upper cylinder body, is provided with the air vent be communicated with nitrogen storage chamber in described valve seat, and the side of described valve seat is provided with the charge valve be communicated with air vent.
Further optimization: described charge valve comprises the inflation valve body be threaded with valve seat, is provided with valve pocket in described inflation valve body, is provided with inflation spool in valve pocket, and the excircle of inflation spool is provided with air channel.
Further optimization: seal between the right part of inflation spool and inflation valve body and be slidably connected.
Further optimization: air vent comprises air vent and valve seat upper vent hole under the valve seat be interconnected; The diameter of section of valve seat upper vent hole is greater than the diameter of section of air vent under valve seat.
Further optimization: valve seat upper vent hole is communicated with the valve pocket of inflation valve body; Under valve seat, air vent is communicated with nitrogen storage chamber;
Nitrogen in upper cylinder body ensures that quartering hammer can normally work institute's necessity, because the loss of nitrogen and discharge need supplementary nitrogen after quartering hammer uses a period of time.Inflated with nitrogen system is arranged for the ease of being filled with in upper cylinder body by nitrogen, and also pressure regulating system detected pressures value when regulating pressure size is arranged simultaneously, has dual-use function.
Further optimization: pressure regulating system comprises and being arranged in valve seat and the valve seat endoporus be communicated with valve seat upper vent hole, the centre position of valve seat is provided with the valve seat steam vent be communicated with air by valve seat endoporus, and the position near valve seat upper vent hole in described valve seat endoporus is provided with control valve.
Further optimization: the lower end of described control valve has lead, described lead is positioned at valve seat upper vent hole and is connected with the inwall slipper seal of valve seat upper vent hole.
Further optimization: be also provided with the elastic device for resetting to control valve in described valve seat endoporus.
Further optimization: this elastic device comprises the spring base on the top being arranged on valve seat endoporus, is provided with spring between described spring base and control valve.
The effect of pressure regulating system is: when quartering hammer in the course of the work, organism temperature rising can make the nitrogen expansion pressure in upper cylinder body be greater than service pressure, at this moment pressure regulating system opens exhaust step-down automatically, reach service pressure automatically to close, quartering hammer can realize Non-intermittent and normally work.
During work, when the pressure in nitrogen storage chamber is greater than normal operation setup pressure, the lead end face of control valve lower end bears pressure when being greater than the spring force of setting, control valve by move and depart from valve seat upper vent hole, nitrogen is discharged by two air discharge ducts of control valve and valve seat steam vent;
When pressure drop is to setting pressure, under the action of the spring, control valve moves down merga pass the one O type circle that to match with valve seat upper vent hole and is formed and seal.
Holddown spring seat in the first deep gouge of spring base is stretched in one end of adjusting bolt, and spring is compressed.
During setting pressure, pulled down by screw plug and install pressure detecting table, unclamped by two locking nuts, regulate adjusting bolt, during the adjusting bolt that turns clockwise, spring base moves down spring and is increased by compression pressure, and instead then pressure reduces.
Carry out being adjusted to required pressure according to pressure meter institute indicating value, after regulating, by two locking nut lockings, prevent adjusting bolt from loosening.At this moment adjusted nitrogen pressure is that quartering hammer normally works required pressure, and when the pressure in nitrogen storage chamber raises, control valve can open decompression automatically to normal pressure.
During inflated with nitrogen, screw plug is unloaded, install external aerating device.When nitrogen enters, inflation spool departs from inflation valve body, and nitrogen just enters into nitrogen storage chamber by air vent under inflating two air channels on spool and the valve seat upper vent hole on valve seat, valve seat.
The utility model adopts such scheme, has the following advantages:
The first, effectively the inoperable bottleneck of rising of hydraulic breaking hammer because of interior ambient temperature is breached.The second, achieve the automatic adjustment of nitrogen pressure, reduce the requirement to operator's technical ability, improve operating efficiency.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the utility model embodiment.
In figure: 1-adjusting bolt; 2-locking nut; 3-valve gap; 4-spring base; 5-valve seat; 6-spring; 7-the one O type circle; 8-inflates valve body; 9-screw plug; 10-resilient key; 11-inflates spool; 12-the 2nd O type circle; 13-quartering hammer upper cylinder body; 14-control valve; A-first deep gouge; B-second deep gouge; E-the 3rd deep gouge; F-two air channel; G-valve seat endoporus; H-valve seat steam vent; I-screwed hole; J-nitrogen storage chamber; Air vent under K-valve seat; L-valve seat upper vent hole; M-lead; N-air discharge duct.
Detailed description of the invention
Embodiment, as shown in Figure 1, automatic pressure control device in a kind of hydraulic breaking hammer, comprise quartering hammer upper cylinder body 13, there is in described quartering hammer upper cylinder body 13 nitrogen storage chamber J, described quartering hammer upper cylinder body 13 is provided with the inflated with nitrogen system be communicated with nitrogen storage chamber J and the pressure regulating system that can regulate gas pressure in the J of nitrogen storage chamber.
Inflated with nitrogen system comprises the valve seat 5 be fixedly connected with quartering hammer upper cylinder body 13, and be provided with the air vent be communicated with nitrogen storage chamber J in described valve seat 5, the side of described valve seat 5 is provided with the charge valve be communicated with air vent.
Described charge valve comprises the inflation valve body 8 be threaded with valve seat 5, in described inflation valve body 8, valve pocket is set, inflation spool 11 is installed in valve pocket, the excircle of inflation spool 11 is provided with two air channel F, between the bottom of inflation spool 11 and the bottom of inflation valve body 8, resilient key 10 is installed, for carrying out return to inflation spool 11.
Sealed by the 2nd O type circle 12 between the right-hand member of inflation spool 11 and inflation valve body 8 and be slidably connected.
Inflation valve body 8 right-hand member screw plug 9 is installed, for inflation valve body 8 seal, prevent dust enter to inflation valve body 8 valve pocket.
Air vent comprises air vent K and valve seat upper vent hole L under the valve seat be interconnected; The diameter of section of valve seat upper vent hole L is greater than the diameter of section of air vent K under valve seat.
Valve seat upper vent hole L is communicated with the valve pocket of inflation valve body 8; Under valve seat, air vent K is communicated with nitrogen storage chamber J;
Nitrogen in upper cylinder body ensures that quartering hammer can normally work institute's necessity, because the loss of nitrogen and discharge need supplementary nitrogen after quartering hammer uses a period of time.Inflated with nitrogen system is arranged for the ease of being filled with in upper cylinder body by nitrogen, and also pressure regulating system detected pressures value when regulating pressure size is arranged simultaneously, has dual-use function.
Pressure regulating system comprises and being arranged in valve seat 5 and the valve seat endoporus G be communicated with valve seat upper vent hole L, the centre position of valve seat 5 is provided with the valve seat steam vent H be communicated with air by valve seat endoporus G, and the position near valve seat upper vent hole L in described valve seat endoporus G is provided with control valve 14.
The lower end of described control valve 14 has lead M, and described lead M is positioned at valve seat upper vent hole L and is connected by O type circle 7 slipper seal with the inwall of valve seat upper vent hole L;
The longitudinal section, upper end of described control valve 14 is U-shaped structure, and its inside has the 3rd deep gouge E, and its outside has two air discharge duct N longitudinally arranged.
The elastic device for resetting to control valve 14 is also provided with in described valve seat endoporus G.
This elastic device comprises the spring base 4 on the top being arranged on valve seat endoporus G, and the lower end of described spring base 4 has the second deep gouge B, is provided with spring 6 between the 3rd deep gouge E and the second deep gouge B.
The upper end of described valve seat 5 is provided with valve gap 3, and described valve gap 3 is connected with adjusting bolt 1 by locking nut 2, and the upper end of described spring base 4 has the first deep gouge A, and the lower end of described adjusting bolt 1 is positioned at the first deep gouge A and is connected with spring base 4.
The effect of pressure regulating system is: when quartering hammer in the course of the work, organism temperature rising can make the nitrogen expansion pressure in upper cylinder body be greater than service pressure, at this moment pressure regulating system opens exhaust step-down automatically, reach service pressure automatically to close, quartering hammer can realize Non-intermittent and normally work.
During work, when the pressure in the J of nitrogen storage chamber is greater than normal operation setup pressure, the lead M end face of control valve 14 lower end bears pressure when being greater than the spring force of setting, control valve 14 by move and depart from valve seat upper vent hole L, nitrogen is discharged by two air discharge duct N of control valve 14 and valve seat steam vent H;
When pressure drop is to setting pressure, under the effect of spring 6, control valve 14 moves down merga pass the one O type circle 7 that to match with valve seat upper vent hole L and is formed and seal.
Holddown spring seat 4 in the first deep gouge A of spring base 4 is stretched in one end of adjusting bolt 1, and spring 6 is compressed.
During setting pressure, pulled down by screw plug 9 and install pressure detecting table, unclamped by two locking nuts 2, regulate adjusting bolt 1, during the adjusting bolt 1 that turns clockwise, spring base 4 moves down spring 6 and is increased by compression pressure, and instead then pressure reduces.
Carry out being adjusted to required pressure according to pressure meter institute indicating value, after regulating, two locking nuts 2 are locked, prevent adjusting bolt 1 from loosening.At this moment adjusted nitrogen pressure is that quartering hammer normally works required pressure, and when the pressure in nitrogen storage chamber raises, control valve 14 can open decompression automatically to normal pressure.
During inflated with nitrogen, screw plug 9 is unloaded, install external aerating device.When nitrogen enters, inflation spool 11 departs from inflation valve body 8, and nitrogen just enters into nitrogen storage chamber J by air vent K under two air channel F on inflation the spool 11 and valve seat upper vent hole L on valve seat 5, valve seat.
Exhaust sound can be heard during inflation, at this moment illustrate that nitrogen is substituted the bad for the good.During inflated with nitrogen, inflation spool 11 is moved to the left.In order to prevent inflation spool 11 " escape ", resilient key 10 stops that charge valve 11 is offside.
Control valve 14, inflation spool 11 all adopt H8/g7 hole axle tolerance fit with corresponding aperture and adopt sealing ring to seal.The screwed hole I of the external screw thread on valve seat 5 and quartering hammer upper cylinder body 13 is held together by screw thread.Automatic pressure control device namely in a kind of Novel hydraulic crushing hammer and being threaded connection between quartering hammer upper cylinder body installs one.
Claims (10)
1. the automatic pressure control device in a hydraulic breaking hammer, comprise quartering hammer upper cylinder body (13), in described quartering hammer upper cylinder body (13), there is nitrogen storage chamber (J), described quartering hammer upper cylinder body (13) is provided with the inflated with nitrogen system be communicated with nitrogen storage chamber (J) and the pressure regulating system that can regulate nitrogen storage chamber (J) interior gas pressure.
2. the automatic pressure control device in a kind of hydraulic breaking hammer according to claim 1, is characterized in that:
Inflated with nitrogen system comprises the valve seat (5) be fixedly connected with quartering hammer upper cylinder body (13), and be provided with the air vent be communicated with nitrogen storage chamber (J) in described valve seat (5), the side of described valve seat (5) is provided with the charge valve be communicated with air vent.
3. the automatic pressure control device in a kind of hydraulic breaking hammer according to claim 2, is characterized in that:
Described charge valve comprises the inflation valve body (8) be threaded with valve seat (5), is provided with valve pocket in described inflation valve body (8), is provided with inflation spool (11) in valve pocket, and the excircle of inflation spool (11) is provided with air channel (F).
4. the automatic pressure control device in a kind of hydraulic breaking hammer according to claim 3, is characterized in that:
Seal between the right part of inflation spool (11) and inflation valve body (8) and be slidably connected.
5., according to the automatic pressure control device in the arbitrary described a kind of hydraulic breaking hammer of claim 2-4, it is characterized in that:
Air vent comprises air vent (K) and valve seat upper vent hole (L) under the valve seat be interconnected; The diameter of section of valve seat upper vent hole (L) is greater than the diameter of section of air vent (K) under valve seat.
6. the automatic pressure control device in a kind of hydraulic breaking hammer according to claim 5, is characterized in that:
Valve seat upper vent hole (L) is communicated with the valve pocket of inflation valve body (8); Under valve seat, air vent (K) is communicated with nitrogen storage chamber (J).
7. the automatic pressure control device in a kind of hydraulic breaking hammer according to claim 6, is characterized in that:
Pressure regulating system comprises and being arranged in valve seat (5) and the valve seat endoporus (G) be communicated with valve seat upper vent hole (L), the centre position of valve seat (5) is provided with the valve seat steam vent (H) be communicated with air by valve seat endoporus (G), and the position near valve seat upper vent hole (L) in described valve seat endoporus (G) is provided with control valve (14).
8. the automatic pressure control device in a kind of hydraulic breaking hammer according to claim 7, is characterized in that:
The lower end of described control valve (14) has lead (M), and described lead (M) is positioned at valve seat upper vent hole (L) and is connected with the inwall slipper seal of valve seat upper vent hole (L).
9. the automatic pressure control device in a kind of hydraulic breaking hammer according to claim 8, is characterized in that: be also provided with the elastic device for resetting to control valve (14) in described valve seat endoporus (G).
10. the automatic pressure control device in a kind of hydraulic breaking hammer according to claim 9, it is characterized in that: this elastic device comprises the spring base (4) on the top being arranged on valve seat endoporus (G), is provided with spring (6) between described spring base (4) and control valve (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420603408.3U CN204199357U (en) | 2014-10-20 | 2014-10-20 | Automatic pressure control device in a kind of hydraulic breaking hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420603408.3U CN204199357U (en) | 2014-10-20 | 2014-10-20 | Automatic pressure control device in a kind of hydraulic breaking hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204199357U true CN204199357U (en) | 2015-03-11 |
Family
ID=52657332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420603408.3U Expired - Lifetime CN204199357U (en) | 2014-10-20 | 2014-10-20 | Automatic pressure control device in a kind of hydraulic breaking hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204199357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555417A (en) * | 2015-09-28 | 2017-04-05 | 卡特彼勒公司 | Hammer component |
-
2014
- 2014-10-20 CN CN201420603408.3U patent/CN204199357U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555417A (en) * | 2015-09-28 | 2017-04-05 | 卡特彼勒公司 | Hammer component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: High tech Zone in Shandong city of Weifang Province, 261061 Silver Street No. 6699 Patentee after: SHANDONG TIANRUI HEAVY INDUSTRY Co.,Ltd. Address before: 261061 Shandong Province, Weifang city national high tech Zone JETCO Street No. 6699 Patentee before: Weifang Tianrui Heavy Industry Drilling Machinery Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150311 |