Hydraulic breaking hammer for a loader

Abstract

This application relates to the field of engineering machinery technology and discloses a hydraulic breaker for a loading vehicle. A protective baffle is installed on the outside of the chisel rod. When the chisel rod strikes a hard layer, the protective baffle prevents debris from flying out, ensuring the safety of surrounding personnel. A liquid distribution chamber filled with an oily medium is located above the protective baffle. When the chisel rod is about to strike the anti-detachment bar, a pressure-reducing baffle restricts the downward movement of the chisel rod. The pressure-reducing baffle, through the liquid distribution chamber and the protective baffle, disperses the impact force of the downward movement of the chisel rod to the periphery of the hard layer, thereby reducing the direct impact on the anti-detachment bar and ultimately achieving the effects of preventing debris from flying out and buffering excess impact from the chisel rod.

Description

Technical Field

[0001] This application relates to the field of engineering machinery technology, and in particular to a hydraulic breaker for a loader. Background Technology

[0002] Hydraulic breakers are typically mounted on loader trucks and are mainly used for breaking, demolishing, and excavating hard layers in construction.

[0003] The current working principle of a hydraulic breaker is as follows: external hydraulic oil compresses the nitrogen chamber as the hammer rod moves upward through a distribution pipeline. After reaching the highest point, the hydraulic oil flow direction is switched by a reversing valve in the distribution pipeline, causing the hammer rod to rapidly descend and strike the chisel rod under the combined action of nitrogen compression kinetic energy and hydraulic oil kinetic energy, thus completing the crushing work.

[0004] In actual use, when hydraulic breakers are used to hammer hard layers, such as hard stone roads, gravel will fly out during the hammering process, which poses a certain safety hazard to pedestrians in the vicinity.

[0005] Meanwhile, during the hammering of the road surface, the chisel rod is prevented from detaching from the hammer body by the anti-detachment stop bar. This means that during actual impact, if there is a missed strike or the object being struck breaks instantly, the hammer rod will push the entire chisel rod out. Since the chisel rod is restricted by the anti-detachment stop bar and cannot move, the fully extended chisel rod will collide with the anti-detachment stop bar to offset the impact force of the hammer rod. This increases the impact on the anti-detachment stop bar, making it prone to breakage. In severe cases, it can even cause the entire hammer body to break. Summary of the Invention

[0006] This application proposes a hydraulic breaker for loading vehicles, which has the advantages of preventing flying debris and buffering excessive impact from the hammer rod, in order to solve the problems of flying debris causing injury and the hammer rod impact breaking the anti-detachment stop bar mentioned in the background art.

[0007] To achieve the above objectives, this application adopts the following technical solution: a hydraulic breaker for a loading vehicle, comprising:

[0008] The housing is installed, and a hammer body is installed inside the housing. The bottom end of the hammer body is movably connected to a chisel. The top of the side wall of the chisel is provided with an anti-detachment groove. An anti-detachment stop bar is fixedly installed on the side wall of the hammer body and passes through the anti-detachment groove. When the oil distribution pipeline in the hammer body pushes the hammer rod upward, it compresses the nitrogen chamber. The compressed nitrogen chamber causes the hammer rod to strike the chisel downward.

[0009] The bottom inner side of the mounting housing is fixedly installed with a liquid distribution tank located below the anti-detachment bar, and a protective baffle tube located outside the drill rod is movably installed at the bottom of the liquid distribution tank. After the protective baffle tube moves down, it wraps around the outside of the drill rod to prevent gravel from splashing out.

[0010] The hammer body has an oil storage chamber at its bottom. The top of the protective baffle and the inner cavity of the liquid separator form a liquid separator. The liquid separator has a liquid exchange hole communicating with the oil storage chamber on its outer side. The oil storage chamber is filled with liquid medium. The hammer body has an oil squeezing ring block located in the oil storage chamber, and a protective spring is installed at the bottom of the oil squeezing ring block. A pressure boosting frame is movably installed on the top of the liquid separator, and the bottom of the pressure boosting frame is located in the liquid separator. A pressure-relieving leg is fixedly installed on the top of the pressure boosting frame, and a pressure-relieving baffle is fixedly installed on the top of the pressure-relieving leg.

[0011] Furthermore, the surface shape of the pressure-relieving baffle is a cube, and a circular hole is provided in the center of the pressure-relieving baffle.

[0012] Furthermore, an oil filler plug is fixedly connected to the side wall of the hammer body.

[0013] Furthermore, a sliding mounting bracket is movably installed at the top of the internal part of the separator, and a pressure regulating magnet is fixedly installed in the sliding mounting bracket. A magnetic passage is opened inside the separator, and a driving magnet located below the magnetic passage is fixedly installed at the top of the protective baffle. The driving magnet and the pressure regulating magnet are attracted to each other. There are two pressure regulating magnets, which are symmetrically arranged along the center line of the rod, and the relative magnetic surfaces of the two pressure regulating magnets are in a magnetic repulsive relationship.

[0014] Furthermore, a magnetic baffle plate is movably sleeved in the sliding mounting bracket between the pressure regulating magnets. A detection cavity is provided at the bottom of the magnetic baffle plate and inside the sliding mounting bracket. A magnetic baffle spring is arranged in the detection cavity. The magnetic baffle plate is pulled back into the detection cavity by the magnetic baffle spring. A detection oil passage is opened at the bottom of the sliding mounting bracket. A guide groove is opened inside the separator on one side of the sliding mounting bracket. A cylindrical rod is provided protruding from the side wall of the magnetic baffle plate and is placed in the guide groove.

[0015] Furthermore, the guide groove is a rectangular groove with rounded corners at both ends, and the upper part of the guide groove is an inclined surface.

[0016] Furthermore, a pressure-reducing stop bar is fixedly installed on the side of the pressure-regulating magnet, and the pressure-reducing stop bar extends out from the sliding mounting bracket and the guide groove. The end of the pressure-reducing stop bar is located in the inner cavity of the hammer body. The pressure-reducing stop bar is located on one side of the pressure-relieving leg. The inner side of the pressure-relieving leg is provided with an inclined surface, and the inclined surface is opposite to the pressure-reducing stop bar.

[0017] This application provides a hydraulic breaker for loading vehicles, which features a protective baffle on the outside of the chisel rod. This baffle protects the chisel rod from flying debris when striking hard surfaces, ensuring the safety of surrounding personnel. Above the protective baffle is a liquid-distributing chamber filled with an oily medium. When the chisel rod is about to strike the anti-detachment bar, a pressure-reducing baffle restricts the downward movement of the chisel rod. The pressure-reducing baffle, through the liquid-distributing chamber and the protective baffle, disperses the impact force of the downward movement of the chisel rod to the periphery of the hard surface, thereby reducing the direct impact on the anti-detachment bar and ultimately preventing debris from flying out and buffering excess impact from the chisel rod. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles disclosed in this application.

[0019] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein:

[0020] Figure 1 This is an overall outline drawing;

[0021] Figure 2 This is a three-dimensional view of the overall interior.

[0022] Figure 3 This is an overall sectional view;

[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This is an overall view of the separatory tank;

[0025] Figure 6 This is a sectional view of the sliding mounting bracket;

[0026] Figure 7 This is a structural diagram of the pressure relief leg.

[0027] Figure 8 This is a diagram of the guide groove shape.

[0028] In the diagram: 1. Housing; 2. Hammer body; 200. Oil reservoir; 201. Hammer rod; 202. Oil distribution pipeline; 203. Nitrogen chamber; 3. Chisel rod; 4. Protective baffle; 5. Oil replenishment plug; 6. Anti-detachment baffle; 7. Pressure relief baffle; 8. Liquid distribution tank; 800. Liquid distribution chamber; 801. Magnetic passage; 802. Guide groove; 9. Liquid exchange hole; 10. Protective spring; 11. Oil squeezing ring block; 12. Pressure relief baffle; 13. Drive magnet; 14. Pressure regulating magnet; 15. Magnetic blocking spring; 16. Pressure boosting frame; 17. Sliding mounting frame; 170. Detection chamber; 171. Detection oil passage; 172. Magnetic blocking plate; 18. Pressure relief leg. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0030] Example 1

[0031] Please see Figure 1 and Figure 2 The existing technology mainly involves connecting the mounting housing 1 to the loader. Inside the mounting housing 1, there is a hammer body 2 fixed with bolts, and a hammer rod 201 is movably mounted on the top inner side of the hammer body 2. A nitrogen chamber 203 is located at the top of the hammer rod 201 inside the hammer body 2. Simultaneously, an oil distribution pipe 202 is located outside the hammer rod 201 inside the hammer body 2, and the oil distribution pipe 202 is connected to an external oil supply pipe. A chisel 3 is movably sleeved at the bottom end of the hammer body 2, located below the hammer rod 201. The top of the side wall of the chisel 3... An anti-detachment groove is provided, which is a rectangular groove. An anti-detachment stop bar 6 is fixedly installed on the side wall of the hammer body 2 and passes through the anti-detachment groove. When the chisel 3 needs to be hammered, the chisel 3 is pressed on the hard layer. When the hammer rod 201 moves upward through the oil distribution pipe 202, it compresses the nitrogen chamber 203. Then, the oil distribution pipe 202 impacts the hammer rod 201 downward. Combined with the compressed nitrogen chamber 203, the hammer rod 201 will have greater kinetic energy when it moves downward, forcing the hammer rod 201 to strike the chisel 3. The chisel 3 strikes the hard layer and breaks it.

[0032] refer to Figure 2 , Figure 3 and Figure 5 The bottom inner side of the housing 1 is fixedly installed with a liquid distribution tank 8 located below the anti-detachment bar 6, and a protective baffle 4 located outside the drill rod 3 is movably installed at the bottom of the liquid distribution tank 8. When the protective baffle 4 moves down, it wraps around the outside of the drill rod 3, ensuring that when the drill rod 3 breaks the hard layer, the protective baffle 4 will block the flying of gravel, thus ensuring the safety of the surrounding personnel.

[0033] refer to Figure 2 , Figure 3 , Figure 5 and Figure 7In this embodiment, an oil storage chamber 200 is provided at the bottom of the hammer body 2. The top of the protective baffle 4 and the inner cavity of the liquid distribution tank 8 form a liquid distribution chamber 800. A liquid exchange hole 9 communicating with the oil storage chamber 200 is provided on the outside of the liquid distribution tank 8. The oil storage chamber 200 is filled with a liquid medium, preferably hydraulic oil. The medium can flow between the liquid distribution chamber 800 and the oil storage chamber 200 through the liquid exchange hole 9. An oil squeezing ring block 11 is provided inside the hammer body 2 and located in the oil storage chamber 200. A protective spring 10 is provided at the bottom of the oil squeezing ring block 11. The hydraulic oil in the oil storage chamber 200 is input into the liquid distribution chamber 800 by the elastic force of the protective spring 10 pushing the oil squeezing ring block 11. At the same time, a pressure boosting frame 16 is movably installed on the top of the liquid distribution tank 8, and the bottom end of the pressure boosting frame 16 is located in the liquid distribution chamber 800. A pressure relief leg 18 is fixedly installed on the top of the pressure boosting frame 16, and a pressure relief baffle 7 is fixedly installed on the top of the pressure relief leg 18. The surface shape of the pressure relief baffle 7 is cubic, and a round hole is opened in the middle of the pressure relief baffle 7. The end of the drill rod 3 can pass through the round hole on the surface of the pressure relief baffle 7.

[0034] In order to ensure the supply of medium to the oil storage chamber 200, an oil replenishing plug 5 is fixedly connected to the side wall of the hammer body 2. The medium can be replenished into the oil storage chamber 200 through the external oil replenishing plug 5.

[0035] When using this embodiment one:

[0036] The medium in the oil storage chamber 200 is forced into the liquid distribution chamber 800 by the squeezing ring block 11. The increase in the medium in the liquid distribution chamber 800 will cause the protective baffle 4 to extend. The extended protective baffle 4 surrounds the outside of the drill rod 3 to shield the drill rod 3 from the flying debris during impact. When the hammer rod 201 hammers the drill rod 3 downward, it also hammers the pressure relief baffle 7 downward. When the drill rod 3 is about to approach the anti-detachment baffle 6, the downward-moving pressure relief baffle 7 blocks the fluid exchange hole 9 through the pressure boosting frame 16. After the pressure boosting frame 16 moves down again, the liquid distribution chamber 800 compresses the medium in the liquid distribution chamber 800. The medium in the liquid distribution chamber 800 will transmit the downward impact force to the hard layer through the protective baffle 4. Finally, the protective baffle 4, the medium in the liquid distribution chamber 800, the pressure boosting frame 16, the pressure relief leg 18 and the sliding mounting frame 17 prevent the drill rod 3 from continuing to hammer downward. The excessive impact of the hammer rod 201 is absorbed to prevent the drill rod 3 from being excessively impacted.

[0037] Example 2

[0038] This second embodiment is a further improvement based on the first embodiment.

[0039] Because in the current implementation, the protective retaining tube 4 always protrudes outwards during use, making it difficult to observe the actual position of the drill rod 3, which is not conducive to precise striking of the hard layer. Please refer to [link / reference needed]. Figure 3 , Figure 4 and Figure 6In this embodiment, a sliding mounting bracket 17 is movably installed at the top of the inside of the dispensing tank 8, and the sliding mounting bracket 17 slides along the center line of the vertical rod 3. At the same time, a pressure regulating magnet 14 is fixedly installed in the sliding mounting bracket 17. The pressure regulating magnet 14 is an L-shaped strong magnet. A magnetic passage 801 is opened inside the dispensing tank 8 for one end of the pressure regulating magnet 14 to be opposite to the dispensing chamber 800. A driving magnet 13 located below the magnetic passage 801 is fixedly installed at the top of the protective baffle 4. The driving magnet 13 and the pressure regulating magnet 14 are attracted by each other. There are two pressure regulating magnets 14. The two pressure regulating magnets 14 are symmetrically arranged along the center line of the rod 3, and the relative magnetic surfaces of the two pressure regulating magnets 14 are in a magnetic repulsive relationship.

[0040] During use, refer to Figure 3 and Figure 4 When the drill rod 3 is lifted, the top of the anti-detachment groove is pressed against the anti-detachment stop bar 6 by the weight of the drill rod 3 itself. At this time, the magnetic surfaces of the pressure regulating magnets 14 are facing each other due to the opening of the anti-detachment groove, and the two pressure regulating magnets 14 move away from each other until the sliding mounting bracket 17 is attached to the liquid distribution tank 8. At this time, the magnetic attraction between the pressure regulating magnet 14 and the driving magnet 13 will attract the protective baffle tube 4 upward, so that the medium in the liquid distribution chamber 800 is transported to the liquid exchange hole 9. The medium added to the oil storage chamber 200 overcomes the elastic force of the protective spring 10, so that during the upward movement of the protective baffle tube 4, the pressurized medium will push the pressure booster bracket 16 upward, ensuring the lifting of the pressure relief baffle 7. When the protective baffle tube 4 is completely retracted into the liquid distribution tank 8, the drill rod 3 is exposed and easy to position. At this time, the elastic force of the protective spring 10 can still maintain the lifting of the pressure relief baffle 7.

[0041] When it is necessary to strike the hard layer, the drill rod 3 will first press against the hard layer. The bottom of the anti-detachment groove will abut against the anti-detachment stop 6, so that the drill rod 3 has a certain amount of room to move when struck by the hammer rod 201, preventing the anti-detachment stop 6 from directly bearing the impact intensity of the hammer rod 201. At this time, the upward movement of the drill rod 3 will block the two voltage regulating magnets 14. One end of the voltage regulating magnet 14 will attract the drill rod 3, thereby causing the voltage regulating magnet 14 to move towards the drill rod 3. The voltage regulating magnet 14 will disengage from the magnetic passage 801. Since the drill rod 3 is now placed on the hard layer, Since the driving magnet 13 cannot lift the protective baffle 4, the protective spring 10 forces the medium in the oil storage chamber 200 into the liquid distribution chamber 800, causing the protective baffle 4 to move downwards. Because the protective baffle 4 moves downwards due to the increased medium in the liquid distribution chamber 800, the drill rod 3 can not only strike vertically but also perform crushing operations at a certain angle. Afterwards, as mentioned above, the extended protective baffle 4 will press against the hard layer on the outside of the drill rod 3, preventing debris from flying and preventing overload impact on the drill rod 3. After the work is completed, by lifting the drill rod 3, as mentioned above, the top of the anti-detachment groove on the drill rod 3 presses against the anti-detachment baffle 6, thus lifting the protective baffle 4 and exposing the drill rod 3.

[0042] In this second embodiment, when the drill rod 3 is struck and moves downward, the downward-moving drill rod 3 will drive the anti-detachment groove to move downward synchronously, causing the magnetic surfaces of the pressure regulating magnet 14 to face each other. When the drill rod 3 moves downward and the pressure booster frame 16 does not block the liquid exchange hole 9, it will force the pressure regulating magnet 14 to move above the magnetic passage 801, thereby causing the protective baffle 4 to move upward. Therefore, in this embodiment, a magnetic baffle plate 172 located between the pressure regulating magnets 14 is movably sleeved in the sliding mounting frame 17, and a detection cavity 170 is provided at the bottom of the magnetic baffle plate 172 and inside the sliding mounting frame 17. A magnetic baffle spring 15 is arranged in the detection cavity 170, and the top of the magnetic baffle spring 15 is aligned with the magnetic baffle plate 172. 72 is fixedly connected. The bottom of the magnetic blocking spring 15 is fixedly connected to the sliding mounting bracket 17. The magnetic blocking plate 172 blocks the magnetic surfaces of the pressure regulating magnets 14, preventing magnetic repulsion. When the magnetic blocking spring 15 pulls the magnetic blocking plate 172, it retracts into the detection chamber 170, thus not affecting the magnetic surface alignment between the pressure regulating magnets 14. The bottom of the sliding mounting bracket 17 has a detection oil passage 171 for communication between the detection chamber 170 and the magnetic passage 801, enabling communication between the media in the detection chamber 170 and the magnetic passage 801. The interior of the liquid separator 8 has a guide groove 802 located on one side of the sliding mounting bracket 17. (Reference) Figure 6 A cylindrical rod is provided protruding from the side wall of the magnetic baffle 172, and the cylindrical rod is placed in the guide groove 802, for reference. Figure 4 and Figure 8 The guide groove 802 is a rectangular groove with rounded corners at both ends, and the upper part of the guide groove 802 is an inclined surface. During use, refer to... Figure 4When the sliding mounting bracket 17 moves to the rightmost side of the guide groove 802, the magnetic baffle 172, restricted by the upper part of the guide groove 802, will be pressed into the detection chamber 170, allowing the two pressure regulating magnets 14 to face each other. When the bottom of the anti-detachment groove on the probe 3 abuts against the anti-detachment stop bar 6, the magnetic attraction of the pressure regulating magnet 14 on the probe 3 will cause the pressure regulating magnet 14 to move away from the magnetic passage 801. Due to the elastic compression of the medium pressure in the liquid separation chamber 800 by the protective spring 10, the medium in the magnetic passage 801 has the same pressure, causing the detection chamber 170 to push the magnetic baffle 172 upward and overcome the tension of the magnetic baffle spring 15. The upward-moving magnetic baffle 172, by pushing against the upper part of the guide groove 802, further pushes the pressure regulating magnet 14 away from the magnetic passage 801. The guide groove 802 moves in the direction of movement. Then, when the drill rod 3 and the pressure relief baffle 7 are impacted downward by the hammer rod 201, the pressure booster frame 16 descends and squeezes the liquid distribution chamber 800, increasing the medium pressure in the magnetic channel 801. Excess medium will flow back from the liquid exchange hole 9 into the oil storage chamber 200, further compressing the protective spring 10. At the same time, the increased pressure in the detection chamber 170 will force the magnetic baffle 172 to always be in the ejected state, so that the pressure regulating magnet 14 is always away from the magnetic channel 801. That is, the cylindrical rod on the magnetic baffle 172 is located at the leftmost side of the guide groove 802, ensuring that during use, the pressure regulating magnets 14 will not generate magnetic repulsion due to the downward movement of the drill rod 3, thus avoiding the protective baffle 4 being accidentally lifted. When the drill rod 3 is lifted, since the drill rod 3 and the protective baffle 4 are no longer under pressure, at this time:

[0043] If the booster frame 16 blocks the fluid exchange hole 9, the pressure in the liquid distribution chamber 800 will decrease due to the protective baffle 4 extending outward under its own weight. The magnetic baffle spring 15 will pull the magnetic baffle plate 172 back into the detection chamber 170, and the medium in the detection chamber 170 will flow back into the liquid distribution chamber 800 through the detection oil passage 171 and the magnetic passage 801.

[0044] If the booster frame 16 does not block the fluid exchange hole 9, the fully extended protective spring 10 will input the medium in the oil storage chamber 200 to the liquid distribution chamber 800 to the maximum extent. However, the protective baffle tube 4 will still extend outward a certain distance due to its own gravity, so that the magnetic baffle spring 15 can still pull the magnetic baffle plate 172 back, so that the magnetic baffle plate 172 is retracted into the detection chamber 170. Finally, through the magnetic repulsion between the pressure regulating magnets 14, the bottom of the pressure regulating magnet 14 will move to above the magnetic passage 801, so that the magnetic attraction between the pressure regulating magnet 14 and the driving magnet 13 will pull the protective baffle tube 4 back.

[0045] In this implementation, in combination with actual use, an extension spring can be appropriately added to the liquid separation chamber 800 so that the protective baffle 4 can be pushed out by the extension spring at a certain angle, and the protective baffle 4 can still be kept extended.

[0046] Because the current method requires the protective baffle 4 to press the material onto the ground during crushing, and when the hammer rod 201 strikes without contact with the ground, it will directly hit the chisel rod 3, with the final force transmitted to the anti-detachment baffle 6. To reduce the impact load, refer to... Figure 3 In the current embodiment, a pressure-reducing stop bar 12 is added. The pressure-reducing stop bar 12 is fixedly installed on the side of the pressure-adjusting magnet 14, and extends from the sliding mounting bracket 17 and guide groove 802 into the inner cavity of the hammer body 2. At this time, the pressure-reducing stop bar 12 is located on one side of the pressure-reducing leg 18, combined with... Figure 7 The inner side of the pressure-relieving leg 18 is provided with an inclined surface, which is opposite to the pressure-reducing baffle 12. This ensures that when the equipment is running dry, the downward-moving drill rod 3 aligns the magnetic surfaces of the pressure-adjusting magnets 14 through the anti-dislodgement groove. The inclined surface of the pressure-relieving leg 18 pushes the pressure-reducing baffle 12, causing the pressure-adjusting magnets 14 to move away from the magnetic passage 801. Since there is no resistance at the bottom of the protective baffle 4 at this time, the protective baffle 4 will extend fully. The force of striking the pressure-relieving baffle 7 will also cause the pressure-boosting frame 16 to squeeze the liquid distribution chamber 800. The medium pressure in the liquid distribution chamber 800 will not increase due to the continuous extension of the protective baffle 4, so the medium pressure in the detection chamber 170 will not increase either, due to the tension of the magnetic blocking spring 15. This causes the magnetic baffle 172 to retract into the detection cavity 170, ensuring that there is always magnetic repulsion between the voltage regulating magnets 14. As the pressure relief leg 18 moves downward, it continuously presses down on the pressure relief lever 12, forcing the pressure relief lever 12 to bring the two voltage regulating magnets 14 closer together. At this time, the two voltage regulating magnets 14 face each other with the maximum magnetic surface, resulting in the maximum repulsion. Furthermore, the proximity of the two voltage regulating magnets 14 further increases the magnetic repulsion between them. By gradually increasing the magnetic repulsion, the limiting strength of the pressure relief leg 18 is increased until the pressure relief baffle 7 absorbs the downward impact kinetic energy of the hammer rod 201, that is, the hammering intensity of the hammer rod 201 in the dry-firing state is absorbed by the magnetic buffer.

Claims

1. A hydraulic breaking hammer for a loading vehicle, characterized in that, Include: The installation shell (1) is provided with a hammer body (2) in the installation shell (1), the bottom end of the hammer body (2) is movably sleeved with a drill rod (3), the sidewall of the hammer body (2) is fixedly provided with a anti-off stop lever (6), and the anti-off stop lever (6) passes through the anti-off slot, when the oil distribution pipeline (202) in the hammer body (2) pushes the hammer rod (201) to move upwards, the compressed nitrogen cavity (203) strikes the hammer rod (201) downwards to the drill rod (3); The inner bottom of the installation shell (1) is fixedly provided with a liquid distribution tank (8) below the anti-off stop lever (6), and the bottom of the liquid distribution tank (8) is movably provided with a protective stop pipe (4) outside the drill rod (3), the protective stop pipe (4) is lowered to wrap the outside of the drill rod (3) to prevent the flying of the gravel; The inside bottom of the hammer body (2) is provided with an oil storage cavity (200), the top of the protective stop pipe (4) and the inner cavity of the liquid distribution tank (8) constitute a liquid distribution cavity (800), the outside of the liquid distribution tank (8) is provided with a liquid exchange hole (9) communicated with the oil storage cavity (200), the oil storage cavity (200) is filled with liquid medium, the inside of the hammer body (2) is provided with an oil squeezing ring block (11) in the oil storage cavity (200), the bottom end of the oil squeezing ring block (11) is provided with a protective spring (10), the top of the liquid distribution tank (8) is movably provided with a booster frame (16), and the bottom end of the booster frame (16) is located in the liquid distribution cavity (800), the top end of the booster frame (16) is fixedly provided with a pressure relief leg (18), and the top end of the pressure relief leg (18) is fixedly provided with a pressure relief baffle (7).

2. The hydraulic breaking hammer for a loader as claimed in claim 1, characterized in that, The surface shape of the pressure relief baffle (7) is a cube, and a circular hole is formed in the middle of the pressure relief baffle (7).

3. The hydraulic breaking hammer for a loader as claimed in claim 1, wherein The sidewall of the hammer body (2) is fixedly connected with an oil supplement plug (5).

4. The hydraulic breaking hammer for a loader as set forth in claim 1, wherein The inside top of the liquid distribution tank (8) is movably provided with a sliding mounting frame (17), and the sliding mounting frame (17) is fixedly provided with a pressure regulating magnet (14), the inside of the liquid distribution tank (8) is provided with a magnetic passage (801), the top end of the protective stop pipe (4) is fixedly provided with a driving magnet (13) below the magnetic passage (801), the driving magnet (13) and the pressure regulating magnet (14) are magnetically attracted, the number of the pressure regulating magnet (14) is two, and the two pressure regulating magnets (14) are symmetrically arranged through the center line of the drill rod (3), and the opposite magnetic surfaces of the two pressure regulating magnets (14) are in repulsive relationship.

5. The hydraulic breaking hammer for a loader as claimed in claim 4, wherein The sliding mounting frame (17) is movably sleeved with a magnetic blocking plate (172) between the pressure regulating magnets (14), the bottom of the magnetic blocking plate (172) and the inside of the sliding mounting frame (17) are provided with a detection cavity (170), a magnetic blocking tension spring (15) is arranged in the detection cavity (170), the magnetic blocking plate (172) is withdrawn into the detection cavity (170) according to the pulling of the magnetic blocking tension spring (15), the bottom of the sliding mounting frame (17) is provided with a detection oil channel (171), the inside of the distribution tank (8) is provided with a guide groove (802) on one side of the sliding mounting frame (17), the sidewall of the magnetic blocking plate (172) is provided with a cylindrical rod, and the cylindrical rod is arranged in the guide groove (802).

6. The hydraulic breaking hammer for a loader as claimed in claim 5, wherein The guide groove (802) is a rectangular groove with rounded corners at both ends, and the upper part of the guide groove (802) is an inclined surface.

7. The hydraulic breaking hammer for a loader as claimed in claim 5, wherein The side of the pressure regulating magnet (14) is fixedly provided with a pressure reducing blocking rod (12), the pressure reducing blocking rod (12) penetrates out of the sliding mounting frame (17) and the guide groove (802), the end of the pressure reducing blocking rod (12) is located in the inner cavity of the hammer body (2), the pressure reducing blocking rod (12) is located on one side of the pressure relieving leg (18), the inner side of the pressure relieving leg (18) is provided with an inclined surface, and the inclined surface is opposite to the pressure reducing blocking rod (12).

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