CN101713203A - Novel hydraulic breaking hammer for engineering truck - Google Patents
Novel hydraulic breaking hammer for engineering truck Download PDFInfo
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- CN101713203A CN101713203A CN200810223575A CN200810223575A CN101713203A CN 101713203 A CN101713203 A CN 101713203A CN 200810223575 A CN200810223575 A CN 200810223575A CN 200810223575 A CN200810223575 A CN 200810223575A CN 101713203 A CN101713203 A CN 101713203A
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- engineering truck
- sealing ring
- hammer
- breaking hammer
- hydraulic
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Abstract
The invention discloses a novel hydraulic breaking hammer for an engineering truck, which is free of medium leakage, high pressure resistant, long in service life and high in hammering and breaking efficiency. Sealing technology that seal ring bodies are extruded by a medium pressure from inner chambers 7 and 8 of hollow seal rings 5 and 6 to be tightly adhered to a cylinder inner sleeve 13 and a hammer rod 11 to realize sealing is adopted among upper and lower end covers 2 and 1 and the hammer rod 11, and between a piston 12 and the cylinder inner sleeve 13 in a hydraulic transmission part cylinder body 10 of the novel hydraulic breaking hammer for the engineering truck. Because the inner chambers of the n-shaped seal rings 5 and 6 are hollow, during a working period of the hydraulic breaking hammer for the engineering truck, the seal ring bodies of the n-shaped seal ring 5 and 6 of the hydraulic transmission part have slight friction with the cylinder inner sleeve 13 and the hammer rod 11 and have low abrasion, and then the service life of the n-shaped seal rings 5 and 6 is prolonged; and the friction resistance between the seal ring bodies and the cylinder inner sleeve 13, and between the seal ring bodies and the hammer rod 11 is respectively low, so energy consumption for friction generation is low and the efficiency of hammering and breaking work is improved. The hydraulic breaking hammer for the engineering truck of the invention is free of medium leakage and multiply increased in the service life; a higher pressure can be borne than that of the traditional hydraulic breaking hammer for the engineering truck; and the efficiency of hammering and breaking work is improved.
Description
The present invention relates to engineering machinery field.
Hydraulic breaking hammer for engineering truck is equipment in the engineering machinery field, and the operating frequency height of hydraulic breaking hammer for engineering truck, dielectric leakage are the existing modal faults of hydraulic breaking hammer for engineering truck.Trace sth. to its source, problem goes out on its Sealing Technology that adopts.As everyone knows, O shape circle, Yx shape circle and combined seal ring Sealing Technology thereof are adopted in the movable sealing of hydraulic drive part in the existing hydraulic breaking hammer for engineering truck, in rubber seal Sealing Technologies such as O shape circle, Yx shape circle, working medium pressure makes it be adjacent to cylinder face and piston rod surface and realizes sealing from sealing ring external compression sealing circle body.Hydraulic breaking hammer for engineering truck when work, potted component with cylinder body, piston rod surface relative motion in all be easy to be damaged, thereby dielectric leakage takes place; If working medium pressure is too high, potted component then can produce distortion, and medium passes through and mistake, and seal failure causes existing hydraulic breaking hammer for engineering truck working life short, can not bear high pressure.Hammer body also to overcome when impacting potted component in the hydraulic drive part and cylinder body, piston rod surface between frictional resistance, make the hammering crushing efficiency descend.Because the frictional force between potted component and plunger body and the cylinder body is very big, for guaranteeing that everything goes well with your work, adopt the combined seal ring Sealing Technology, higher owing to combined seal ring costs an arm and a leg to each component processing required precision, existing cost is significantly risen.Yet because its sealing mechanism is all the same basically with rubber seal Sealing Technologies such as O shape circle, Yx shape circles, sealing effectiveness is not very good yet, exists the dielectric leakage problem always, can not anti-very high pressure.
Purpose of the present invention be exactly to provide a kind of do not have dielectric leakage, high voltage bearing, long service life, novel hydraulic breaking hammer for engineering truck that the hammering crushing efficiency is high.
Technical scheme of the present invention is achieved in that
Adopt pressure medium to make it be adjacent to the Sealing Technology that inner cylinder sleeve 13 and hammer stem 11 are realized sealing between the upper and lower end cap 2,1 and hammer stem 11 in the hydraulic drive part cylinder body 10 of hydraulic breaking hammer for engineering truck, between piston 12 and the inner cylinder sleeve 13 from inner chamber 7, the 8 crush seal circle bodies of hollow sealing ring 5,6.
Be characterized in: the groove 3 that 1) some is arranged on the column working of upper and lower end cap 2,1 in the hydraulic breaking hammer for engineering truck hydraulic drive part cylinder body 10 and piston 12; Quantity is counted from zero, does not limit to requirement; 2) have a plurality of sealing ring mounting grooves on the column working of upper and lower end cap 2,1 piston 12, the road is several to be required to decide according to processing performance, and quantity is not limit; 3) both sides of the work plane inboard of sealing ring 5,6 and sealing ring constitute hollow cavity 7,8, because hollow sealing circle 5,6 cross sectional shapes are like n shape, so be called n shape sealing ring; 4) on the sealed working face of n shape sealing ring 5,6 boss 9 is arranged, boss 9 quantity are decided according to the service behaviour and the technical data of instructions for use, and quantity is counted from zero, do not limit to requirement; 5) have access opening 4 to lead to each sealing ring mounting groove on the end face of upper and lower end cap 2,1 and piston 12, boot media enters the inner chamber 8 that axle is used n shape sealing ring 6 with the inner chamber 7 and the hole of n shape sealing ring 5, and access opening 4 can be shared, also can separate separately.6) according to the processing performance requirement, between the upper and lower end cap 2,1 of hydraulic breaking hammer for engineering truck hydraulic drive part and the hammer stem 11 and can adopt hollow n shape sealing ring Sealing Technology between piston 12 and the inner cylinder sleeve 13 simultaneously, also can adopt hollow n shape sealing ring Sealing Technology in wherein several places, several in addition places adopt other Sealing Technologies.
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is the cut-away view that adopts the hydraulic breaking hammer for engineering truck of hollow n shape sealing ring Sealing Technology
Fig. 2 is the cut-away view of axle with n shape sealing ring
Fig. 3 is the cut-away view of hole with n shape sealing ring
The groove 3 that some as can be seen from Figure 1, is arranged on the column working of upper and lower end cap 2,1 in the hydraulic breaking hammer for engineering truck hydraulic drive part cylinder body 10 and piston 12; Have a plurality of sealing ring mounting grooves on the column working of upper and lower end cap 2,1 and piston 12, n shape sealing ring 5,6 just is installed in the sealing ring mounting groove; The end face of upper and lower end cap 2,1 and piston 12 has some access openings 4 and each sealing ring mounting groove to be interconnected.Access opening 4 can be shared, also can separate separately.Access opening 4 can import medium the inner chamber 7,8 of n shape sealing ring 5,6.Bottom end cover 1 is provided with sealing guiding device 19, and upper end cover 2 is provided with sealing guiding device 17.
On n shape sealing ring 5 its sealed working faces among Fig. 2 boss 9 is arranged, boss 9 quantity are decided according to service behaviour such as the pressure of instructions for use and technical data, and quantity is counted from zero, do not limit to requirement.
On n shape sealing ring 5 its sealed working faces among Fig. 2 boss 9 is arranged, boss 9 quantity are decided according to service behaviour such as the pressure of instructions for use and technical data, and quantity is counted from zero, do not limit to requirement.
As can be seen from Figure 1, by oil path control system hydraulic breaking hammer for engineering truck is started working, medium enters hydraulic drive part cylinder body from upper and lower hydraulic fluid port, end face access opening 4 via upper and lower end cap 2,1 and piston 12 enters n shape sealing ring 5,6 inner chambers 7,8, be full of medium in n shape sealing ring 5,6 inner chambers 7,8, made n shape sealing ring 5,6 work planes be close to inner cylinder sleeve 13 and hammer stem 11.Pressure strengthens, pressure medium is reached the inner chamber 7,8 of n shape sealing ring 5,6 via the end face access opening 4 of upper and lower end cap 2,1 and piston 12 by medium, n shape sealing ring 5,6 is closely contacted with inner cylinder sleeve 13, hammer stem 11, and the groove 3 on the column working of the boss 9 on each road n shape sealing ring 5,6 sealed working face and upper and lower end cap 2,1 and piston 12 forms labyrinth seal, medium by the time pressure progressively decay, pressure medium less than the inner chamber 7,8 of n shape sealing ring 5,6, medium can not take place pass through leakage phenomenon, obtain fabulous sealing effectiveness.And pressure medium is big more, and the sealed working face of n shape sealing ring 5,6 sealed working faces and inner cylinder sleeve 13, hammer stem 11 is fitted tight more, and sealing effectiveness always is fine, and hammer stem 11 drives piston 12 and moves up under pressure medium promotes.When hammer stem 11 rose to desired location, hydraulic fluid port flowed out in the pressure medium warp, and pressure medium descends rapidly, and the effect lower hammer rod 11 drive pistons 12 of compressing gasbag 18 fall rapidly in upper cover body 16, and the broken drill steel 15 of thumping produces the hammering fragmentations.Since n shape sealing ring 5,6 inner chamber hollows, wearing and tearing and little in the impulse stroke.Simultaneously, pressure medium is that the crush seal circle body is realized sealing internally, and whole rubber seal is evenly stressed under the extruding of pressure medium, and deformation is very little, can not produce permanent deformation, and n shape sealing ring 5,6 working lives have obtained prolongation.And discharge from cylinder body at medium, hammer stem 11 drives in the piston 12 downlink working strokes, because n shape sealing ring inner chamber hollow, friction is slight between n shape sealing ring 5,6 sealing circle bodies and inner cylinder sleeve 13, the hammer stem 11, it is very little to wear and tear, and this has also prolonged n shape sealing ring 5,6 working lives.Simultaneously, because frictional resistance is little between sealing circle body and inner cylinder sleeve 13, the hammer stem 11, the friction energy loss of generation is little, has improved the efficient of the broken work of hammering.Hydraulic breaking hammer for engineering truck of the present invention does not only have dielectric leakage, and working life is multiplied, and can bear the pressure higher than existing hydraulic breaking hammer for engineering truck, has improved the efficient of the broken work of hammering.
Claims (7)
- One kind do not have dielectric leakage, high voltage bearing, long service life, novel hydraulic breaking hammer for engineering truck that the hammering crushing efficiency is high.Adopt pressure medium to make it be adjacent to the Sealing Technology that inner cylinder sleeve 13 and hammer stem 11 are realized sealing between the upper and lower end cap 2,1 and hammer stem 11 in the hydraulic drive part cylinder body 10 of hydraulic breaking hammer for engineering truck, between piston 12 and the inner cylinder sleeve 13 from inner chamber 7, the 8 crush seal circle bodies of hollow sealing ring 5,6.
- 2. the groove 3 that some is arranged on the upper and lower end cap 2,1 of hydraulic breaking hammer for engineering truck hydraulic drive part according to claim 1, the column working of piston 12.
- 3. have a plurality of sealing ring mounting grooves on the upper and lower end cap 2,1 of hydraulic breaking hammer for engineering truck hydraulic drive part according to claim 1, the column working of piston 12, the road is several to be required to decide according to processing performance, and quantity is not limit.
- 4. the n shape sealing ring 5,6 of employing according to claim 1 is installed in the sealing ring mounting groove.
- 5. the upper and lower end cap 2,1 of hydraulic breaking hammer for engineering truck hydraulic drive part according to claim 1, the end face of piston 12 have some access openings 4 and each sealing ring mounting groove to be interconnected, and access opening 4 can be shared, also can separate separately.
- 6. the work plane inboard of n shape sealing ring 5,6 according to claim 4 and the both sides of sealing ring constitute hollow cavity 7,8, have boss 9 on the sealed working face of sealing ring, and its quantity is counted from zero, do not limit to requirement.
- 7. between the upper and lower end cap 2,1 and inner cylinder sleeve 13 according to the described hydraulic breaking hammer for engineering truck hydraulic drive of claim 1 part, can require adopt simultaneously the Sealing Technology of hollow n shape sealing ring between piston 12 and the hammer stem 11 according to processing performance, also can be wherein several places adopt the Sealing Technology of hollow n shape sealing rings, and several places adopt other Sealing Technologies in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810223575A CN101713203A (en) | 2008-10-08 | 2008-10-08 | Novel hydraulic breaking hammer for engineering truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810223575A CN101713203A (en) | 2008-10-08 | 2008-10-08 | Novel hydraulic breaking hammer for engineering truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101713203A true CN101713203A (en) | 2010-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810223575A Pending CN101713203A (en) | 2008-10-08 | 2008-10-08 | Novel hydraulic breaking hammer for engineering truck |
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| Country | Link |
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| CN (1) | CN101713203A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784677A (en) * | 2011-10-09 | 2012-11-21 | 江苏力博士机械股份有限公司 | Highly reliable dust-proof sealing device of hydraulic smashing hammer |
-
2008
- 2008-10-08 CN CN200810223575A patent/CN101713203A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784677A (en) * | 2011-10-09 | 2012-11-21 | 江苏力博士机械股份有限公司 | Highly reliable dust-proof sealing device of hydraulic smashing hammer |
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| C06 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100526 |