CN116950173B - Excavator breaking hammer structure for road construction - Google Patents
Excavator breaking hammer structure for road construction Download PDFInfo
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- CN116950173B CN116950173B CN202311210777.6A CN202311210777A CN116950173B CN 116950173 B CN116950173 B CN 116950173B CN 202311210777 A CN202311210777 A CN 202311210777A CN 116950173 B CN116950173 B CN 116950173B
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- cylinder body
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- piston rod
- inner cavity
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- 238000010276 construction Methods 0.000 title claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 72
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 36
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 34
- 230000009471 action Effects 0.000 claims description 23
- 239000003921 oil Substances 0.000 claims description 21
- 229910052757 nitrogen Inorganic materials 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 10
- 238000001125 extrusion Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 6
- 239000004575 stone Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
- E02F5/305—Arrangements for breaking-up hard ground
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of hydraulic breaking hammers and discloses an excavator breaking hammer structure for road construction, which comprises a cylinder body structure, wherein a first communication pipeline is arranged at the top of one side of the interior of the cylinder body structure and is communicated with a negative pressure chamber and the top of an inner cavity of the cylinder body structure through a first communication pipeline, the bottom of the inner cavity of the linkage chamber is communicated with the top of the inner cavity of the negative pressure chamber through a second communication pipeline arranged in the interior of the cylinder body structure, and a third communication pipeline communicated with the bottom end of the second communication pipeline is arranged in the interior of the cylinder body structure. This excavator quartering hammer structure for road construction utilizes hydraulic oil to drive the in-process that the piston rod on it upwards takes place to remove to negative pressure room, linkage room and the setting of intercommunication pipeline between, can form the negative pressure at the top of negative pressure room inner chamber, adsorbs the hydraulic oil in the extraction cylinder body structure inner chamber, and then when the piston rod takes place to remove downwards, can effectively reduce its energy consumption that produces when carrying for the extrusion.
Description
Technical Field
The invention relates to the technical field of hydraulic breaking hammers, in particular to a breaking hammer structure of an excavator for road construction.
Background
The breaking hammer is used as an important working tool in the excavator, can be provided with hydraulic power by a pump station of the excavator itself and drives a piston rod on the breaking hammer to move up and down to impact the drill rod, so that stronger impact force is generated on the stone and the stone is broken.
When the piston rod on the breaking hammer is driven to move up and down by hydraulic pressure, after the piston rod is driven to move up by hydraulic oil, part of the pressure in the nitrogen chamber is consumed by extrusion conveying of the hydraulic oil in the process of driving the piston rod to move down by the pressure of the nitrogen chamber, so that the breaking hammer is high in energy loss, and a certain time is required for extrusion conveying of the hydraulic oil for supporting the piston rod to move up, so that the speed of the piston rod in moving down is limited, the impact force of the piston rod to the drill rod is greatly influenced, and stability and reliability are poor.
Therefore, there is a need for a breaking hammer structure for hydraulic excavator, which solves the above-mentioned drawbacks of the conventional breaking hammer structure in the practical use process.
Disclosure of Invention
The technical problems to be solved are as follows: the invention provides an excavator breaking hammer structure for road construction, which has the advantages that hydraulic oil for supporting can be timely pumped away when a piston rod on the breaker is moved to the uppermost part, so that energy consumption generated by extruding and conveying the hydraulic oil for supporting can be effectively reduced when the piston rod is moved downwards, and the problem that part of pressure in a nitrogen air chamber is consumed by extruding and conveying the hydraulic oil in the process of driving the piston rod to move downwards by utilizing the pressure of the nitrogen air chamber on the breaker is solved, so that the energy loss of the breaking hammer is high, and the speed of the piston rod is limited when the piston rod is moved downwards because a certain time is required for extruding and conveying the hydraulic oil for supporting the piston rod to move upwards, so that the impact force of the hydraulic rod is greatly influenced is solved.
Technical proposal
The invention provides the following technical scheme: the utility model provides an excavator quartering hammer structure for road construction, includes cylinder body structure and piston rod, the inside activity of cylinder body structure has cup jointed the piston rod, and is filled with nitrogen gas in the cavity that cylinder body structure inner chamber's top and piston rod formed, cylinder body structure inner chamber's bottom activity has cup jointed the drill rod, negative pressure chamber has been seted up at cylinder body structure inside one side's middle part, cylinder body structure inside one side's bottom just has seted up the linking chamber under the negative pressure chamber, linking chamber inner chamber one side's top is equipped with the oil inlet that communicates to cylinder body structure outside, linking chamber inner chamber one side's bottom is equipped with the oil-out that communicates to cylinder body structure outside, cylinder body structure inside one side's top is equipped with first intercommunication pipeline to communicate negative pressure chamber and cylinder body structure inner chamber's top through first intercommunication pipeline, cylinder body structure inner chamber's middle part is equipped with the inner groove, and communicate with linking chamber's top, linking chamber's bottom is linked chamber's bottom is through setting up in cylinder body structure inside second intercommunication pipeline and negative pressure chamber's top and is equipped with the check valve in the inside the second intercommunication pipeline, cylinder body structure's inside is equipped with the linking chamber, cylinder body structure's bottom is equipped with the third intercommunication with the bottom of linking chamber with the linking chamber through the bottom of linking chamber that is linked through the third intercommunication;
the middle part of piston rod one side has been seted up first U type groove, and has seted up the second U type groove in the bottom of piston rod one side, the fourth intercommunication pipeline has been seted up to the inside of piston rod to through the bottom and the top of fourth intercommunication pipeline intercommunication piston rod surface, form the linkage through the movable linkage piston that cup joints in the cylinder body structure inside between negative pressure chamber and the linkage room, and the linkage piston forms the transmission through the activity between constant voltage spring and the cylinder body structure of cup joint in the interior chamber bottom of linkage room.
Preferably, when the piston rod is at the lowest position, the fourth communication pipeline and the first communication pipeline on the piston rod are in a mutually staggered state, the first U-shaped groove and the inner groove are in a mutually communicated state, and the second U-shaped groove and the third communication pipeline are in a mutually staggered state.
Preferably, when the piston rod is at the uppermost position, the fourth communication pipeline and the first communication pipeline on the piston rod are in a mutually communicated state, the first U-shaped groove and the inner groove are in a mutually staggered state, and the second U-shaped groove and the third communication pipeline are in a mutually communicated state.
Preferably, the elasticity of the constant-pressure spring is smaller than the pressure of nitrogen at the top of the inner cavity of the compression cylinder structure when the hydraulic oil drives the piston rod to move upwards.
Preferably, when the bottom end of the linkage piston is extruded by hydraulic oil to move downwards to the bottommost end, the bottom end of the linkage piston can be mutually overlapped with the end of the third communication pipeline so as to realize plugging operation; when the linkage piston moves upwards to the topmost end under the action of the elastic force of the constant-pressure spring, the linkage piston and the third communication pipeline are staggered, the third communication pipeline is communicated with the bottom of the inner cavity of the linkage chamber, and the blocking operation can be implemented on the communication between the top of the inner cavity and the inner groove as well as the oil inlet.
Preferably, the action of the breaking hammer structure comprises two stages:
the first stage:
when hydraulic oil is conveyed to the inside of the cylinder body structure through the oil inlet in an extrusion mode, after the hydraulic oil enters the inside of the linkage chamber, the linkage piston is driven to move downwards and compress the constant pressure spring, negative pressure is formed at the top of the inner cavity of the negative pressure chamber, the hydraulic oil enters the inner groove, the piston rod is forced to move upwards under the action of the first U-shaped groove, nitrogen filled at the top of the inner cavity of the cylinder body structure is compressed until the piston rod moves to the uppermost side, the fourth communication pipeline is communicated with the first communication pipeline, and the inner groove is communicated with the top of the inner cavity of the linkage chamber through the second U-shaped groove and the third communication pipeline;
and a second stage:
when the piston rod moves to the uppermost part, the fourth communication pipeline is communicated with the first communication pipeline, and then a part of hydraulic oil used for supporting the piston rod to move upwards in the inner cavity of the cylinder body structure is adsorbed under the negative pressure action of the top end of the inner cavity of the negative pressure chamber, then, the upper end and the lower end of the inner cavity of the linkage chamber are mutually communicated under the action of the second U-shaped groove and the third communication pipeline, and then the linkage piston is forced to move to the uppermost part under the elastic action of the constant pressure spring, the positions between the third communication pipeline and the bottom end of the linkage piston are staggered, the hydraulic oil adsorbed at the top of the inner cavity of the compression negative pressure chamber is extruded and conveyed to the oil outlet through the second communication pipeline, and meanwhile, the oil inlet can be effectively plugged, and then, the piston rod is driven to move downwards under the action of high-pressure nitrogen at the top of the inner cavity of the cylinder body structure and the drill rod positioned at the bottom of the inner cavity of the cylinder body structure is impacted.
Advantageous effects
The invention has the following beneficial effects:
1. this excavator quartering hammer structure for road construction is to the setting of negative pressure room, the linkage room and the intercommunication pipeline between them to under the effect of linkage piston, utilize hydraulic oil to drive the in-process that the piston rod on it upwards takes place to remove, can form the negative pressure at the top of negative pressure room inner chamber, adsorb the hydraulic oil that is used for supporting piston rod and upwards remove in the extraction cylinder body structure inner chamber, and then when the piston rod takes place to remove downwards, can effectively reduce its energy consumption that is being used for supporting piston rod hydraulic oil for the extrusion transportation produced, and increased under the effect of cylinder body structure inner chamber top high pressure nitrogen gas, the impact velocity of piston rod when moving downwards, and then effectively strengthened the impact strength of this quartering hammer structure to the stone.
2. This excavator quartering hammer structure for road construction is to the setting of linkage piston and constant voltage spring between negative pressure chamber and the linkage chamber to through the setting of the last intercommunication pipeline of it, when the piston rod upwards moves, can form the negative pressure at the top of negative pressure chamber inner chamber, and when the piston rod moves down, can extrude the hydraulic oil that the absorption of discharging negative pressure chamber inner chamber top was extracted again under the elasticity effect of linkage piston, and then need not other power take off structure in this quartering hammer structure, and simple structure, stability and reliability are higher.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the cylinder structure of the present invention;
FIG. 3 is a schematic view of the piston rod of the present invention;
FIG. 4 is a schematic illustration of hydraulic flow as the piston rod of the present invention is moved upward;
fig. 5 is a schematic view of the hydraulic flow of the piston rod of the present invention as it moves downward.
In the figure: 1. a cylinder structure; 2. a negative pressure chamber; 3. a linkage chamber; 4. an oil inlet; 5. an oil outlet; 6. a first communication line; 7. a second communication line; 8. an inner groove; 9. a third communication line; 10. a piston rod; 11. a first U-shaped groove; 12. a second U-shaped groove; 13. a fourth communication line; 14. a linkage piston; 15. a constant pressure spring; 16. a drill rod.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, an excavator breaking hammer structure for road construction comprises a cylinder structure 1 and a piston rod 10, wherein the piston rod 10 is movably sleeved in the cylinder structure 1, nitrogen is filled in a cavity formed by the top of the inner cavity of the cylinder structure 1 and the piston rod 10, further nitrogen on the piston rod 10 is compressed when the piston rod 10 moves upwards and sufficient driving force is provided for the piston rod when the piston rod moves downwards, a drill rod 16 is movably sleeved at the bottom of the inner cavity of the cylinder structure 1, the impact force generated when the piston rod 10 moves downwards by the drill rod 16 is transmitted to a stone block, as shown in fig. 2, a negative pressure chamber 2 is formed in the middle part of one side of the cylinder structure 1, a linkage chamber 3 is formed at the bottom of one side of the cylinder structure 1 and right below the negative pressure chamber 2, an oil inlet 4 communicated to the outside of the cylinder structure 1 is formed at the top of one side of the linkage chamber 3, an oil outlet 5 communicated to the outside of the cylinder structure 1 is formed at the bottom of one side of the linkage chamber 3, a hydraulic pressure return path 6 is formed between the piston rod and the hydraulic pump station on the excavator through the oil inlet 4 and the oil outlet 5, a first connecting path 6 is formed at the top of one side of the cylinder structure 1 and a hydraulic oil pump station, the hydraulic oil can only flows to the top of the one-way valve 2 through the first connecting chamber 2 and the bottom connecting chamber 2 is communicated with the bottom of the inner cavity 2 through the first connecting chamber 2, the negative pressure valve 7 is communicated with the inner cavity 2 through the middle part of the negative pressure valve 1, the negative pressure valve 2 is communicated with the inner cavity 2, and the bottom is communicated with the inner cavity 1 through the middle cavity 2 through the negative pressure valve 1, and the middle cavity 2 is communicated with the middle cavity 1, and the bottom is communicated with the negative pressure chamber 1 through the negative pressure chamber 2, a third communication pipeline 9 communicated with the bottom end of the second communication pipeline 7 is arranged in the cylinder body structure 1, and the bottom of the inner cavity of the cylinder body structure 1 and the bottom of the linkage chamber 3 are communicated through the third communication pipeline 9;
as shown in fig. 1 and 3, a first U-shaped groove 11 is formed in the middle of one side of the piston rod 10, a second U-shaped groove 12 is formed in the bottom of one side of the piston rod 10, a fourth communication pipeline 13 is formed in the interior of the piston rod 10, the bottom of the outer surface of the piston rod 10 and the top of the piston rod are communicated through the fourth communication pipeline 13, a linkage is formed between the negative pressure chamber 2 and the linkage chamber 3 through a linkage piston 14 movably sleeved in the interior of the cylinder structure 1, and the linkage piston 14 is in transmission connection with the cylinder structure 1 through a constant pressure spring 15 movably sleeved in the bottom of the inner cavity of the linkage chamber 3.
As shown in fig. 2, 3 and 4, in this technical solution, when the piston rod 10 is at the lowest position, the fourth communication pipeline 13 on the piston rod 10 and the first communication pipeline 6 are in a mutually staggered state, the first U-shaped groove 11 and the inner groove 8 are in a mutually communicated state, and the second U-shaped groove 12 and the third communication pipeline 9 are in a mutually staggered state, so that the piston rod 10 can be driven to move upwards under the action of hydraulic transmission.
As shown in fig. 2, 3 and 5, in the present technical solution, when the piston rod 10 is at the uppermost position, the fourth communication pipeline 13 on the piston rod 10 and the first communication pipeline 6 are in a mutually communicated state, the first U-shaped groove 11 and the inner groove 8 are in a mutually staggered state, and the second U-shaped groove 12 and the third communication pipeline 9 are in a mutually communicated state, so that under the negative pressure adsorption effect at the top of the inner cavity of the negative pressure chamber 2, the hydraulic oil in the inner cavity of the cylinder structure 1 can be adsorbed into the inner cavity of the negative pressure chamber 2, and under the high pressure nitrogen effect at the top of the inner cavity of the cylinder structure 1, the piston rod 10 is forced to move downwards to impact the drill rod 16;
meanwhile, a hydraulic flow loop can be formed in the cylinder body structure 1, and hydraulic oil in the top of the inner cavity of the negative pressure chamber 2 is extruded and flows back to the hydraulic pump station under the elastic force of the constant pressure spring 15.
In the technical scheme, the elasticity of the constant pressure spring 15 is smaller than the pressure of the hydraulic oil driving the piston rod 10 to move upwards to compress nitrogen at the top of the inner cavity of the cylinder structure 1, so that the linkage piston 14 can be forced to move downwards and compress the constant pressure spring 15 firstly in the process of extruding and conveying the hydraulic oil to the inside of the cylinder structure 1 through the oil inlet 4, and then negative pressure is formed at the top of the inner cavity of the negative pressure chamber 2.
In this technical scheme, the bottom of linkage piston 14 when receiving the extrusion of hydraulic oil and taking place to move to the bottom down, can overlap each other with the tip of third intercommunication pipeline 9 in order to carry out the shutoff operation to it, and the linkage piston 14 receives when the elasticity effect of constant voltage spring 15 upwards moves to the top, can stagger each other with third intercommunication pipeline 9, and communicate the bottom of third intercommunication pipeline 9 and linkage room 3 inner chamber, and can carry out the shutoff operation to the top of its inner chamber and the intercommunication between inner groove 8 and oil inlet 4.
In the technical scheme, the action of the breaking hammer structure comprises two stages:
the first stage piston rod 10 moves upward:
as shown in fig. 2, 3 and 4, when hydraulic oil is conveyed to the interior of the cylinder structure 1 through the oil inlet 4, after entering the interior of the linkage chamber 3, the linkage piston 14 is driven to move downwards and compress the constant pressure spring 15, so that negative pressure is formed at the top of the inner cavity of the negative pressure chamber 2, then the hydraulic oil enters the inner groove 8, the piston rod 10 is forced to move upwards under the action of the first U-shaped groove 11, nitrogen filled at the top of the inner cavity of the cylinder structure 1 is compressed until the piston rod 10 moves to the uppermost side, the fourth communication pipeline 13 is communicated with the first communication pipeline 6, and the inner groove 8 is communicated with the top of the inner cavity of the linkage chamber 3 through the second U-shaped groove 12 and the third communication pipeline 9;
the second stage piston rod 10 moves down for a stage of:
as shown in fig. 2, 3 and 5, when the piston rod 10 moves to the uppermost position, the fourth communication pipeline 13 is communicated with the first communication pipeline 6, so that a part of hydraulic oil for supporting the piston rod 10 to move upwards in the inner cavity of the cylinder structure 1 is absorbed under the negative pressure action of the top end of the inner cavity of the negative pressure chamber 2, then, the upper end and the lower end of the inner cavity of the linkage chamber 3 are communicated with each other under the action of the second U-shaped groove 12 and the third communication pipeline 9, so that the linkage piston 14 is forced to move to the uppermost position under the action of the elastic force of the constant pressure spring 15, the positions between the third communication pipeline 9 and the bottom end of the linkage piston 14 are staggered, the hydraulic oil absorbed by the top of the inner cavity of the compression negative pressure chamber 2 is extruded and conveyed to the oil outlet 5 through the second communication pipeline 7, the oil inlet 4 can be effectively blocked, and then, the piston rod 10 is driven to move downwards under the action of high pressure nitrogen gas on the top of the inner cavity of the cylinder structure 1, and the drill rod 16 positioned at the bottom of the inner cavity of the cylinder structure 1 is impacted.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an excavator quartering hammer structure for road construction, includes cylinder body structure (1) and piston rod (10), piston rod (10) have been cup jointed in the inside activity of cylinder body structure (1), and the top of cylinder body structure (1) inner chamber has filled nitrogen gas in the cavity that piston rod (10) formed, drill rod (16) have been cup jointed in the bottom activity of cylinder body structure (1) inner chamber, its characterized in that:
the middle part of one side of the interior of the cylinder body structure (1) is provided with a negative pressure chamber (2), the bottom of one side of the interior of the cylinder body structure (1) is provided with a linkage chamber (3) which is positioned right below the negative pressure chamber (2), the top of one side of the inner cavity of the linkage chamber (3) is provided with an oil inlet (4) communicated to the exterior of the cylinder body structure (1), the bottom of one side of the inner cavity of the linkage chamber (3) is provided with an oil outlet (5) communicated to the exterior of the cylinder body structure (1), the top of one side of the interior of the cylinder body structure (1) is provided with a first communication pipeline (6), the negative pressure chamber (2) is communicated with the top of the inner cavity of the cylinder body structure (1) through the first communication pipeline (6), the middle part of the inner cavity of the cylinder body structure (1) is provided with an inner groove (8) and is communicated with the top of the linkage chamber (3), the bottom of the inner cavity of the linkage chamber (3) is communicated with the top of the inner cavity of the negative pressure chamber (2) through a second communication pipeline (7) arranged in the interior of the cylinder body structure (1), and the interior of the second communication pipeline (7) is provided with a one-way valve inside the second communication pipeline (7), the interior of the cylinder body structure (1) is provided with the bottom of the interior of the cylinder body structure (1) is provided with the bottom of the inner cavity (3) is communicated with the bottom of the inner cavity (3) through the first communication pipeline (9;
the middle part of one side of the piston rod (10) is provided with a first U-shaped groove (11), the bottom of one side of the piston rod (10) is provided with a second U-shaped groove (12), the interior of the piston rod (10) is provided with a fourth communication pipeline (13), the bottom of the outer surface of the piston rod (10) and the top of the piston rod are communicated through the fourth communication pipeline (13), a linkage is formed between the negative pressure chamber (2) and the linkage chamber (3) through a linkage piston (14) movably sleeved in the interior of the cylinder body structure (1), and the linkage piston (14) is in transmission connection with the cylinder body structure (1) through a constant pressure spring (15) movably sleeved in the bottom of the inner cavity of the linkage chamber (3);
when the piston rod (10) is at the lowest position, a fourth communication pipeline (13) and the first communication pipeline (6) on the piston rod (10) are in a mutually staggered state, the first U-shaped groove (11) and the inner groove (8) are in a mutually communicated state, and the second U-shaped groove (12) and the third communication pipeline (9) are in a mutually staggered state;
when the piston rod (10) is at the uppermost part, a fourth communication pipeline (13) on the piston rod (10) is in a state of being communicated with the first communication pipeline (6), the first U-shaped groove (11) and the inner groove (8) are in a state of being staggered with each other, and the second U-shaped groove (12) and the third communication pipeline (9) are in a state of being communicated with each other.
2. The excavator breaking hammer structure for road construction according to claim 1, wherein: the elasticity of the constant-pressure spring (15) is smaller than the pressure of nitrogen at the top of the inner cavity of the compression cylinder body structure (1) when the hydraulic oil drives the piston rod (10) to move upwards.
3. The excavator breaking hammer structure for road construction according to claim 2, wherein: when the bottom end of the linkage piston (14) is extruded by hydraulic oil to move downwards to the bottommost end, the bottom end of the linkage piston can be mutually overlapped with the end of the third communication pipeline (9) so as to realize plugging operation; when the linkage piston (14) moves upwards to the topmost end under the action of the elastic force of the constant-pressure spring (15), the linkage piston and the third communication pipeline (9) can be staggered, the third communication pipeline (9) and the bottom of the inner cavity of the linkage chamber (3) are communicated, and the blocking operation can be implemented on the communication between the top of the inner cavity and the inner groove (8) and the oil inlet (4).
4. The excavator breaking hammer structure for road construction according to claim 3, wherein: the action of the breaking hammer structure comprises two stages:
the first stage:
when hydraulic oil is conveyed to the interior of the cylinder body structure (1) through the oil inlet (4), after entering the interior of the linkage chamber (3), the linkage piston (14) is driven to move downwards and compress the constant pressure spring (15), negative pressure is formed at the top of the inner cavity of the negative pressure chamber (2), then the negative pressure enters the inner groove (8), the piston rod (10) is forced to move upwards under the action of the first U-shaped groove (11), nitrogen filled at the top of the inner cavity of the cylinder body structure (1) is compressed until the piston rod (10) moves to the uppermost side, the fourth communication pipeline (13) is communicated with the first communication pipeline (6), and the inner groove (8) is communicated with the top of the inner cavity of the linkage chamber (3) through the second U-shaped groove (12) and the third communication pipeline (9);
and a second stage:
when the piston rod (10) moves to the uppermost part, the fourth communication pipeline (13) is communicated with the first communication pipeline (6), and then part of hydraulic oil used for supporting the piston rod (10) to move upwards in the inner cavity of the cylinder body structure (1) is absorbed under the negative pressure effect of the top end of the inner cavity of the negative pressure chamber (2), then, the upper end and the lower end of the inner cavity of the linkage chamber (3) are communicated with each other under the action of the second U-shaped groove (12) and the third communication pipeline (9), and then the linkage piston (14) is forced to move to the uppermost part under the action of the elastic force of the constant pressure spring (15), the positions between the third communication pipeline (9) and the bottom end of the linkage piston (14) are staggered, the hydraulic oil absorbed at the top of the inner cavity of the compression negative pressure chamber (2) is conveyed to the oil outlet (5) in an extruding mode through the second communication pipeline (7), and then, the piston rod (10) is driven to move downwards under the action of high-pressure nitrogen at the top of the inner cavity of the cylinder body structure (1), and the rod (16) positioned at the bottom of the inner cavity of the cylinder body structure (1) is impacted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311210777.6A CN116950173B (en) | 2023-09-20 | 2023-09-20 | Excavator breaking hammer structure for road construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311210777.6A CN116950173B (en) | 2023-09-20 | 2023-09-20 | Excavator breaking hammer structure for road construction |
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| CN116950173A CN116950173A (en) | 2023-10-27 |
| CN116950173B true CN116950173B (en) | 2023-12-29 |
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| CN212857333U (en) * | 2020-07-01 | 2021-04-02 | 佛山市力派机车材料有限公司 | Punching device with two-stage efficient punching |
| CN115110379A (en) * | 2022-06-22 | 2022-09-27 | 中交基础设施养护集团有限公司 | Compaction device and application thereof in road construction |
| CN115559958A (en) * | 2022-09-30 | 2023-01-03 | 徐州徐工矿业机械有限公司 | Self-heat-dissipation hydraulic breaking hammer structure with adjustable impact force and method |
-
2023
- 2023-09-20 CN CN202311210777.6A patent/CN116950173B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2792723Y (en) * | 2005-04-15 | 2006-07-05 | 马六成 | Hydraulic hammer |
| CN203061268U (en) * | 2013-01-06 | 2013-07-17 | 天津市环城鑫茂节能材料有限公司 | Breaking hammer for automatic liquid preparation |
| CN212857333U (en) * | 2020-07-01 | 2021-04-02 | 佛山市力派机车材料有限公司 | Punching device with two-stage efficient punching |
| CN115110379A (en) * | 2022-06-22 | 2022-09-27 | 中交基础设施养护集团有限公司 | Compaction device and application thereof in road construction |
| CN115559958A (en) * | 2022-09-30 | 2023-01-03 | 徐州徐工矿业机械有限公司 | Self-heat-dissipation hydraulic breaking hammer structure with adjustable impact force and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116950173A (en) | 2023-10-27 |
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