CN211816548U - Special quartering hammer of engineering construction - Google Patents

Abstract

The utility model discloses a special quartering hammer of engineering construction, including the mount pad, one side of mount pad is fixed with cylinder body one, the one end fixedly connected with piston cylinder of cylinder body one far away from the mount pad, the circumference outside of piston cylinder is provided with the switching-over valve, one side of switching-over valve is provided with the energy accumulator, the one end threaded connection that the piston cylinder kept away from cylinder body one has cylinder body two, the circumference outside of cylinder body two is provided with the grease filler hole, the one end cover that cylinder body two kept away from the piston cylinder is equipped with the buffer assembly, the cylinder body two endotheca is equipped with the hammer core, and the hammer core runs through the buffer assembly and; a hydraulic chamber is arranged inside the cylinder body I, a piston is arranged inside the piston cylinder, an oil seal is arranged at the top of the piston, and the oil seal is located inside the cylinder body I. Has the advantages that: structural design is reasonable, has improved the lubricated efficiency between hammer core and cylinder body, and when the effectual quartering hammer that avoids hitting, the hammer core is to the injury of piston to the life of extension piston.

Description

Special quartering hammer of engineering construction

Technical Field

The utility model relates to an engineering machine tool technical field particularly, relates to a special quartering hammer of engineering construction.

Background

The hydraulic breaking hammer is called as the breaking hammer or the breaker for short, the power source of the hydraulic breaking hammer is the pressure provided by an excavator, a loader or a pump station, and the hydraulic breaking hammer can effectively break stones and rocks in engineering construction and improve the working efficiency. The principle of selecting the hydraulic breaking hammer is to select the most suitable hydraulic breaking hammer according to the type of the excavator and the operation environment. But current quartering hammer is in the use, the piece when assaulting the broken messenger, the powder can get into hammer core place cylinder body, long-time the use, can cause the spacer pin card to die, lead to hammer core motion not smooth, or strain the cylinder body and lead to the quartering hammer to damage, in addition in the use, the phenomenon of empty beating often can appear, when the quartering hammer is empty to beat, the kinetic energy of hammer core is whole to be acted on cylinder body and spacer pin, the counter force of hammer core acts on the bottom of piston simultaneously, the process of rising that makes the piston is faster than normal velocity, can cause the damage of cylinder body and piston for a long time.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To the problem among the correlation technique, the utility model provides a special quartering hammer of engineering construction to overcome the above-mentioned technical problem that current correlation technique exists.

Therefore, the utility model discloses a specific technical scheme as follows:

a special breaking hammer for engineering construction comprises an installation base, wherein a first cylinder body is fixed on one side of the installation base, a piston cylinder is fixedly connected to one end, away from the installation base, of the first cylinder body, a reversing valve is arranged on the outer side of the circumference of the piston cylinder, an energy accumulator is arranged on one side of the reversing valve, a second cylinder body is in threaded connection with one end, away from the first cylinder body, of the piston cylinder, a lubricating grease filling port is formed in the outer side of the circumference of the second cylinder body, a buffer assembly is sleeved at one end, away from the piston cylinder, of the second cylinder body, a hammer core is sleeved in the second cylinder; a hydraulic oil chamber is arranged in the first cylinder body, a piston is arranged in the piston cylinder, an upper oil seal is arranged at the top of the piston and is positioned in the first cylinder body, a lower oil seal is arranged at the bottom of the piston, and a waterproof sealing ring is arranged at the bottom end of the lower oil seal; the top bilateral symmetry of hammer core is provided with the spacer pin, and the switching-over valve is provided with the frequency modulation choke valve with the oil circuit junction of piston cylinder, and the buffering subassembly is provided with a plurality of rubber spring including setting up the T taper sleeve in two one ends of cylinder body, T taper sleeve's bottom, and rubber spring's bottom all is provided with the guide pillar, and the bottom of guide pillar is connected with the disc, and the disc is fixed in the circumference outside of hammer core.

Further, for the T shape taper sleeve cooperatees with the bottom of cylinder body two, in addition hammer core and T shape taper sleeve closely cooperate, and then when in actual use, T shape taper sleeve can effectively prevent that the dust piece from getting into the cylinder body, play dirt-proof effect, when the hammer core takes place the idle stroke simultaneously, under the effect of rubber spring and disc, make the reaction force of hammer core only act on and absorbed by rubber spring on the T shape taper sleeve, in order to reduce the injury of hammer core to the piston, the life of extension piston, T shape taper sleeve includes the cylinder section, the bottom of cylinder section is provided with the round platform, a plurality of counter bores one has been seted up to the bottom terminal surface of round platform.

Furthermore, in order to increase the connection strength between the hammer core and the disc and further ensure that the buffer assembly can continuously and effectively work, the contact position between the disc and the hammer core is provided with a round angle.

Further, in order to enable the annular oil grooves to be matched with the lubricating grease filling port, the lubricating efficiency between the hammer core and the cylinder body is improved, the limiting pin is prevented from being blocked, the cylinder body is prevented from being damaged and damaged, the service life of the cylinder body and the hammer core is further prolonged, the cavity is formed in the top of the second cylinder body, the bottom side wall of the cavity is provided with the annular oil grooves, the annular oil grooves are communicated with the lubricating grease filling port, external threads are arranged on the outer side of the circumference of the top of the second cylinder body, and the bottom end of the second cylinder body.

Further, in order to make the screw hole and the screw cooperate, conveniently make this quartering hammer install on the arm of excavator, the mount pad is provided with the riser including setting up the bottom plate in the one end of cylinder body one, the bilateral symmetry of bottom plate, all seted up a plurality of screw holes on the riser.

Further, in order to enable the waterproof sealing ring to be matched with the lower oil seal, the waterproofness of the oil seal at the bottom of the oil cylinder is increased, multiple sealing contact is achieved by the aid of the design of the plurality of contact lips, sealing and waterproof effects are further enhanced, the top end of the waterproof sealing ring is provided with the circular groove, the bottom of the circular groove is provided with the through hole, and the side wall of the through hole is provided with the plurality of contact lips.

The utility model has the advantages that:

(1) the utility model has the advantages of reasonable design, improved the lubricated efficiency between hammer core and cylinder body, can effectually prevent that the spacer pin card from dying, damage and cause the cylinder body to strain, and then prolonged the life of cylinder body and hammer core, add the buffering subassembly to the hammer core simultaneously, when can effectually avoiding this quartering hammer to beat, the hammer core is to the injury of piston to the life of extension piston.

(2) The bottom through setting up T shape taper sleeve and cylinder body two is mutually supported, in addition hammer core and T shape taper sleeve closely cooperate, and then when in actual use, T shape taper sleeve can prevent effectively that the dust piece from getting into the cylinder body, has played dirt-proof effect, when the hammer core takes place to blank beat simultaneously, under the effect of rubber spring and disc, make the reaction force of hammer core only act on T shape taper sleeve and absorbed by rubber spring, in order to reduce the injury of hammer core to the piston, the life of piston has been prolonged.

(3) Make waterproof sealing circle and lower oil blanket cooperate through setting up, increased the waterproof nature of hydro-cylinder bottom oil blanket, adopt the design of a plurality of contact lips, realized multiple sealing contact, and then strengthened sealed and waterproof effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a special breaking hammer for engineering construction according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at B;

FIG. 4 is an enlarged view of a portion of FIG. 2 at C;

FIG. 5 is a schematic structural diagram of a second cylinder body of the special breaking hammer for engineering construction according to the embodiment of the invention;

fig. 6 is a schematic structural diagram of a mounting seat of a special breaking hammer for engineering construction according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a waterproof sealing ring of the special quartering hammer for engineering construction according to the embodiment of the present invention.

In the figure:

1. a mounting seat; 101. a base plate; 102. a vertical plate; 103. a threaded hole; 2. a first cylinder body; 3. a piston cylinder; 4. a diverter valve; 5. an accumulator; 6. a second cylinder body; 601. a cavity; 602. an annular oil groove; 603. an external thread; 604. a second counter bore; 7. a grease filler port; 8. a buffer assembly; 801. a T-shaped taper sleeve; 802. a rubber spring; 803. a guide post; 804. a disc; 805. a cylindrical section; 806. a circular truncated cone; 807. a first counter bore; 808. round corners; 9. a hammer core; 10. a hydraulic chamber; 11. a piston; 12. oil seal is arranged; 13. a lower oil seal; 14. a waterproof sealing ring; 1401. a circular groove; 1402. a through hole; 1403. a contact lip; 15. a spacing pin; 16. frequency modulation throttle valve.

Detailed Description

For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.

According to the utility model discloses an embodiment provides a special quartering hammer of engineering construction.

The utility model is further explained by referring to the drawings and the detailed description, as shown in fig. 1-7, according to the special quartering hammer for engineering construction of the embodiment of the utility model, the special quartering hammer for engineering construction comprises a mounting seat 1, a cylinder body I2 is fixed on one side of the mounting seat 1, one end of the cylinder body I2 far away from the mounting seat 1 is fixedly connected with a piston cylinder 3, the circumference outside of the piston cylinder 3 is provided with a reversing valve 4, one side of the reversing valve 4 is provided with an energy accumulator 5, one end of the piston cylinder 3 far away from the cylinder body I2 is connected with a cylinder body II 6 through a thread, the circumference outside of the cylinder body II 6 is provided with a grease filling port 7, one end of the cylinder body II 6 far away from the piston cylinder 3 is sleeved with a buffer component 8, the inside of the cylinder body; a hydraulic oil chamber 10 is arranged in the cylinder body I2, a piston 11 is arranged in the piston cylinder 3, an upper oil seal 12 is arranged at the top of the piston 11, the upper oil seal 12 is positioned in the cylinder body I2, a lower oil seal 13 is arranged at the bottom of the piston 11, and a waterproof sealing ring 14 is arranged at the bottom end of the lower oil seal 13; the top both sides symmetry of hammer core 9 is provided with spacer pin 15, and the oil circuit junction of switching-over valve 4 and piston cylinder 3 is provided with frequency modulation choke valve 16, and buffer unit 8 is provided with a plurality of rubber spring 802 including the T taper sleeve 801 that sets up in two 6 one ends of cylinder body, T taper sleeve 801's bottom, and the bottom of rubber spring 802 all is provided with guide pillar 803, and the bottom of guide pillar 803 is connected with disc 804, and disc 804 is fixed in the circumference outside of hammer core 9.

With the help of with above-mentioned scheme to make structural design reasonable, improved the lubrication efficiency between hammer core and cylinder body, can effectually prevent that the spacer pin card from dying, damage and cause the cylinder body to strain, and then prolonged the life of cylinder body and hammer core, add the buffering subassembly to the hammer core simultaneously, can effectually avoid when this quartering hammer idle stroke, the damage of hammer core to the piston, with the life of extension piston.

In one embodiment, the T-shaped taper sleeve 801 comprises a cylindrical section 805, a circular truncated cone 806 is arranged at the bottom end of the cylindrical section 805, and a plurality of counter bores one 807 are formed in the bottom end face of the circular truncated cone 806, so that the T-shaped taper sleeve 801 is matched with the bottom of the cylinder two 6, and the hammer core 9 is tightly matched with the T-shaped taper sleeve 801, so that in actual use, the T-shaped taper sleeve 801 can effectively prevent dust and debris from entering the cylinder to play a dustproof role, and meanwhile, when the hammer core 9 is in idle driving, the reaction force of the hammer core 9 only acts on the T-shaped taper sleeve 801 and is absorbed by the rubber spring 802 under the action of the rubber spring 802 and the circular disc 804, so that the damage of the hammer core 9 to the piston 11 is reduced, and the service life of the piston is prolonged.

In one embodiment, the contact position of the disk 804 and the hammer core 9 is provided with a round corner 808, so that the connection strength of the hammer core 9 and the disk 804 is increased, and the buffer assembly 8 can continuously and effectively work.

In an embodiment, a cavity 601 is formed in the top of the second cylinder body 6, a plurality of annular oil grooves 602 are formed in the side wall of the bottom of the cavity 601, the annular oil grooves 602 are communicated with the grease filling port 7, external threads 603 are formed in the outer side of the circumference of the top of the second cylinder body 6, and a second counter bore 604 is formed in the bottom end of the second cylinder body 6, so that the annular oil grooves 602 are matched with the grease filling port 7, the lubricating efficiency between the hammer core 9 and the second cylinder body 6 is improved, the limit pin can be effectively prevented from being locked, the cylinder body is prevented from being damaged and being pulled, and the service lives of the cylinder.

In one embodiment, the mounting base 1 comprises a bottom plate 101 arranged at one end of the cylinder body one 2, two sides of the bottom plate 101 are symmetrically provided with vertical plates 102, and the vertical plates 102 are respectively provided with a plurality of threaded holes 103, so that the threaded holes 103 are matched with screws, and the breaking hammer is conveniently mounted on an arm of an excavator.

In one embodiment, the top end of the waterproof sealing ring 14 is provided with a circular groove 1401, the bottom of the circular groove 1401 is provided with a through hole 1402, and the side wall of the through hole 1402 is provided with a plurality of contact lips 1403, so that the waterproof sealing ring 14 is matched with the lower oil seal 13, the waterproofness of the oil seal at the bottom of the oil cylinder is increased, multiple sealing contact is realized by adopting the design of the plurality of contact lips 1403, and the sealing effect is further enhanced, and the service life of the oil cylinder is prolonged.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

In practical application, the breaking hammer is mounted on a mechanical arm of an excavator through a mounting seat 1, an oil inlet pipe and an oil outlet pipe of a hydraulic cylinder are connected with an oil inlet and an oil outlet on a reversing valve 4, an energy accumulator 5 on hydraulic oil inlet kinetic energy pushes an oil cylinder rod to move upwards to compress hydraulic oil in a hydraulic oil chamber 10, the reversing valve 4 switches directions after a piston 11 is pushed to a high point, hydraulic oil inlet generates kinetic energy, the compression kinetic energy of the hydraulic oil in the hydraulic oil chamber 10 pushes the piston 11 to rapidly move downwards to knock a hammer core 9 to form impact force, the oil inlet flow is controlled through a frequency modulation throttle valve 16, when the oil inlet speed is high, the piston 11 moves fast, the oil inlet slow piston 11 moves slow, the movement frequency of the piston 11 is adjusted, when the hammer core 9 is in idle stroke, under the action of a rubber spring 802 and a disc 804, the reaction force of the hammer core 9 only acts on a T-shaped conical sleeve 801 and is absorbed by the rubber spring 802, in order to reduce the injury of hammer core 9 to piston 11, and then prolong piston 11's life, add annular oil groove 602 simultaneously in cylinder body two 6 to improve the lubricated efficiency between hammer core 9 and cylinder body two 6, prevent that the spacer pin card is dead.

To sum up, with the aid of the utility model discloses an above-mentioned technical scheme, bottom through setting up two 6 of T shape taper sleeve 801 and cylinder body cooperatees, hammer core 9 and T shape taper sleeve 801 closely cooperate in addition, and then when in actual use, T shape taper sleeve 801 can effectively prevent that the dust piece from getting into the cylinder body, has played dirt-proof effect, when the empty time of beating takes place at hammer core 9 simultaneously, under rubber spring 802 and disc 804's effect, make hammer core 9's reaction force only be used in on T shape taper sleeve 801 and absorbed by rubber spring 802, in order to reduce hammer core 9 to the injury of piston 11, the life of piston has been prolonged. Make waterproof sealing ring 14 and lower oil blanket 13 cooperate through setting up, increased the waterproof nature of hydro-cylinder bottom oil blanket, adopt the design of a plurality of contact lips 1403, realized multiple sealing contact, and then strengthened sealed effect to prolong its life. Thereby make structural design reasonable, improved the lubrication efficiency between hammer core and cylinder body, can effectually prevent that the spacer pin card from dying, damage and cause the cylinder body to strain, and then prolonged the life of cylinder body and hammer core, add the buffering subassembly to the hammer core simultaneously, when can effectually avoiding this quartering hammer to beat, the injury of hammer core to the piston to the life of extension piston.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A special breaking hammer for engineering construction is characterized by comprising a mounting seat (1), a cylinder body I (2) is fixed on one side of the mounting seat (1), a piston cylinder (3) is fixedly connected with one end of the cylinder body I (2) far away from the mounting seat (1), a reversing valve (4) is arranged on the outer side of the circumference of the piston cylinder (3), an energy accumulator (5) is arranged on one side of the reversing valve (4), one end of the piston cylinder (3) far away from the cylinder body I (2) is in threaded connection with a cylinder body II (6), a grease filling port (7) is arranged on the outer side of the circumference of the cylinder body II (6), one end of the second cylinder body (6) far away from the piston cylinder (3) is sleeved with a buffer component (8), a hammer core (9) is sleeved in the second cylinder body (6), the hammer core (9) penetrates through the buffer assembly (8) and extends to the outer side of the buffer assembly (8);

the hydraulic oil chamber (10) is arranged in the cylinder body I (2), the piston (11) is arranged in the piston cylinder (3), an upper oil seal (12) is arranged at the top of the piston (11), the upper oil seal (12) is located in the cylinder body I (2), a lower oil seal (13) is arranged at the bottom of the piston (11), and a waterproof sealing ring (14) is arranged at the bottom end of the lower oil seal (13);

limiting pins (15) are symmetrically arranged on two sides of the top of the hammer core (9), a frequency modulation throttle valve (16) is arranged at the joint of the reversing valve (4) and an oil way of the piston cylinder (3), the buffer assembly (8) comprises a T-shaped taper sleeve (801) arranged at one end of the second cylinder body (6), a plurality of rubber springs (802) are arranged at the bottom of the T-shaped taper sleeve (801), guide pillars (803) are arranged at the bottom ends of the rubber springs (802), a disc (804) is connected to the bottom ends of the guide pillars (803), and the disc (804) is fixed on the outer side of the circumference of the hammer core (9).

2. The special breaking hammer for engineering construction as claimed in claim 1, wherein the T-shaped taper sleeve (801) comprises a cylindrical section (805), a circular truncated cone (806) is arranged at the bottom end of the cylindrical section (805), and a plurality of first counter bores (807) are formed in the end face of the bottom end of the circular truncated cone (806).

3. The special breaking hammer for engineering construction as claimed in claim 1, wherein the contact position of the disc (804) and the hammer core (9) is provided with a round angle (808).

4. The special breaking hammer for engineering construction according to claim 1, wherein a cavity (601) is formed in the top of the second cylinder body (6), a plurality of annular oil grooves (602) are formed in the side wall of the bottom of the cavity (601), the annular oil grooves (602) are communicated with the grease filling port (7), external threads (603) are formed in the outer side of the circumference of the top of the second cylinder body (6), and a second counter bore (604) is formed in the bottom end of the second cylinder body (6).

5. The special breaking hammer for engineering construction according to claim 1, wherein the mounting seat (1) comprises a bottom plate (101) arranged at one end of the cylinder body I (2), vertical plates (102) are symmetrically arranged on two sides of the bottom plate (101), and a plurality of threaded holes (103) are formed in the vertical plates (102).

6. The special breaking hammer for engineering construction according to claim 1, wherein a circular groove (1401) is formed in the top end of the waterproof sealing ring (14), a through hole (1402) is formed in the bottom of the circular groove (1401), and a plurality of contact lips (1403) are arranged on the side wall of the through hole (1402).

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