CN110984276A

CN110984276A - Hydraulic breaker for tunnel excavation

Info

Publication number: CN110984276A
Application number: CN201911066320.6A
Authority: CN
Inventors: 李万泉; 游经伦
Original assignee: Fujian Beilun Construction Development Co Ltd
Current assignee: Fujian Beilun Construction Development Co Ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-04-10
Anticipated expiration: 2039-11-04
Also published as: CN110984276B

Abstract

The invention discloses a hydraulic breaker for tunnel excavation, which comprises a machine shell, protective side plates, connecting paneling, a top plate, an inclined strut, a machine frame, an installation shaft, a stabilizing block, a base plate, a through bolt, a support rod, a bearing rod, a buffer plate, a fastening hole, a nitrogen cylinder, an oil cylinder, a piston, a tip heat treatment drill rod, a wear-resistant guard plate base, a reversing valve, a guide bush, an energy accumulator, shock-absorbing glue, a buffer block, a fastening backing plate, a locking hole, a fixing bolt, a T-shaped block, a push plate, an extrusion block, a guide rod, a fixing plate, a sliding plate, a push block, a push rod, a sliding block, a first spring, a sliding rod and a second spring, wherein the protective side plates are arranged at two ends of one side of the machine shell through the connecting paneling, the wear-resistant guard plate base is arranged at the bottom of the machine shell through the fastening bolt, the inner structure is not easy to damage, and the energy accumulator is firmly installed and fixed, thereby being beneficial to work.

Description

Hydraulic breaker for tunnel excavation

Technical Field

The invention relates to the technical field of tunnel excavation, in particular to a hydraulic breaker for tunnel excavation.

Background

In the excavation process of the tunnel, a hydraulic breaker is required to be used, the power source of the hydraulic breaker is the pressure provided by an excavator, a loader or a pump station, hydrostatic pressure is used as power to drive a piston to reciprocate, the drill rod is impacted at high speed when the piston strokes, and the drill rod breaks solid such as ore, concrete and the like, so that stones and rocks can be effectively broken in engineering construction, the working efficiency is improved, the hydraulic breaker in the prior art is troublesome to mount and dismount, poor in protection effect, not firm in fixation, poor in pressure bearing effect of a joint with the excavator and poor in breaking effect, meanwhile, the internal structure of the hydraulic breaker is easy to damage due to vibration in the breaking process, the service life of the hydraulic breaker is influenced, and in addition, the energy accumulator inside the hydraulic breaker is not firmly installed and fixed, the sealing performance of the hydraulic breaker is influenced, and the hydraulic breaker is not beneficial to work, so that the hydraulic breaker for tunnel excavation is designed necessarily.

Disclosure of Invention

The invention aims to provide a hydraulic breaker for tunnel excavation, which solves the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: a hydraulic breaker for tunnel excavation comprises a machine shell, protective side plates, connecting paneling, a top plate, an inclined strut, a machine frame, an installation shaft, a stabilizing block, a base plate, a through bolt, a support rod, a bearing rod, a buffer plate, a fastening hole, a nitrogen cylinder, an oil cylinder, a piston, a sharp-end heat treatment drill rod, a wear-resistant guard plate base, a reversing valve, a guide bushing, an energy accumulator, damping rubber, a buffer block, a fastening backing plate, a locking hole, a locking bolt, a fixing bolt, a T-shaped block, a push plate, an extrusion block, a guide rod, a fixing plate, a sliding plate, a push block, a push rod, a sliding block, a first spring, a sliding rod and a second spring, wherein the protective side plates are installed at two ends of one side of the machine shell through the connecting paneling, the wear-resistant guard plate base is installed at the bottom of the machine shell through the fastening bolt, the improved structure of the T-shaped sliding block comprises a rack, wherein mounting shafts are arranged at two ends of the rack, the bottom of the inner wall of a stabilizing block is connected with a base plate through a buffer plate, the top of the base plate is uniformly welded and fixed with the top of the inner wall of the stabilizing block through a bearing rod, a through bolt is arranged at the top of the stabilizing block, buffer blocks are welded at two ends of the bottom of a top plate, a T-shaped block is arranged at the bottom of the buffer block, one end of the T-shaped block extends into the buffer block and is welded and fixed with a push plate, extrusion blocks are welded at one side of the push plate corresponding to two ends, a fixed plate is welded in the middle of the interior of the buffer block, one end of each extrusion block is fixedly connected with the fixed plate through a second spring, guide rods are arranged at two sides of each extrusion block, one end of each guide rod penetrates through the, the utility model discloses a buffer block, including buffer block, slider, nitrogen cylinder, reversing valve, fastening bolt, fastening backing plate, locking hole, the circumferencial direction of energy storage ware is evenly connected with the fastening backing plate through locking bolt, fixing bolt is installed to the inner wall top of buffer block, the slider cup joints on the slider, and the slider is connected through first spring coupling each other, the bottom of T type piece is passed through fastening bolt and is connected with the nitrogen cylinder, the bottom of nitrogen cylinder is provided with the hydro-cylinder, and is provided with the piston in the hydro-cylinder, the bottom one end of piston is provided with most advanced heat treatment drill rod, install the reversing valve in the middle of one side of hydro-cylinder, the below of reversing valve is provided with the energy storage ware, the bottom welding of energy.

According to the technical scheme, the inclined struts are symmetrically welded at the two ends of the top of the casing, and the top of each inclined strut is fixedly connected with the top plate.

According to the technical scheme, the top of the top plate is uniformly provided with the fastening holes, and one end of the bottom of the through bolt penetrates through the stabilizing block and extends into the fastening holes.

According to the technical scheme, the two ends of the inner wall of the stabilizing block are welded with the supporting rods.

According to the technical scheme, a T-shaped sleeve is arranged in the middle of the wear-resistant guard plate base and positioned outside the tip heat treatment drill rod, and damping rubber is arranged at the bottom of the inner wall of the machine shell and positioned on one side of the T-shaped sleeve.

According to the technical scheme, one end of the reversing valve is provided with the guide bushing.

According to the technical scheme, the joint of the nitrogen cylinder and the oil cylinder is provided with the oil seal.

According to the technical scheme, the protective bushings are arranged on the outer sides of one end of the top of the tip heat treatment drill rod and one end of the bottom of the piston.

Compared with the prior art, the invention has the following beneficial effects:

1. the protective side plate is firmly connected with the machine shell through the connecting panel, a certain protective effect is achieved, the top plate and the wear-resistant guard plate base are firmly installed on the machine shell through the fastening bolts, the inclined strut is arranged to achieve a stabilizing effect, the machine frame is connected with an excavator through the installation shaft on the machine frame, the stabilizing block is connected with the top plate through the through bolts, the mounting and dismounting of the stabilizing block are facilitated, the base plate and the buffer plate are supported, the shock absorption rubber in the buffer plate absorbs the impact, and the bearing rod is matched with the support rod, so that the structural stability is improved;

2. hydraulic oil provides kinetic energy after passing through a high-pressure oil pipe in the oil cylinder, the kinetic energy is matched with an energy accumulator, pressure pulsation is absorbed, buffering protection, flow supplement and efficiency increase are achieved, a piston is pushed to move upwards to compress a nitrogen chamber in a nitrogen cylinder, a reversing valve is switched after the piston is pushed to the highest point, the high-pressure oil and nitrogen in the nitrogen chamber are compressed, the piston is pushed to rapidly move downwards to knock a tip heat treatment drill rod to complete crushing work, and the crushing effect is good;

3. when the internal structure is vibrated in the crushing process, the nitrogen cylinder bears pressure to push the T-shaped block to move upwards, so that the push plate pushes the extrusion block to move, the extrusion block extrudes the second spring to be compressed and deformed, and after the T-shaped block reaches the position of the guide rod, the guide rod pushes the sliding plate to move, and then the push rod is pushed by the push block, so that the sliding block slides on the sliding rod, the first spring is stretched, the pressure is dispersed, and the vibration influence is relieved;

4. cooperate through fastening backing plate and locking hole, fix the energy storage ware, the locking bolt of circumferencial direction is with energy storage ware and fastening backing plate firm in connection, guarantees stability and leakproofness, and fixing bolt's setting further improves fixed effect.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is an overall side view of the present invention;

FIG. 2 is a cross-sectional view of the housing of the present invention;

FIG. 3 is a schematic view of the stabilizer block structure of the present invention;

FIG. 4 is a schematic illustration of the accumulator construction of the present invention;

FIG. 5 is a schematic diagram of a buffer block structure according to the present invention;

in the figure: 1. a housing; 2. a protective side plate; 3. connecting the panels; 4. a top plate; 5. bracing; 6. a frame; 7. installing a shaft; 8. a stabilizing block; 9. a substrate; 10. a through bolt; 11. a support bar; 12. a load-bearing bar; 13. a buffer plate; 14. a fastening hole; 15. a nitrogen cylinder; 16. an oil cylinder; 17. a piston; 18. carrying out heat treatment on the drill rod at the tip; 19. a wear-resistant guard plate base; 20. a diverter valve; 21. a guide bush; 22. an accumulator; 23. shock-absorbing glue; 24. a buffer block; 25. fastening a base plate; 26. a locking hole; 27. locking the bolt; 28. fixing the bolt; 29. a T-shaped block; 30. pushing the plate; 31. extruding the block; 32. a guide bar; 33. a fixing plate; 34. a slide plate; 35. a push block; 36. a push rod; 37. a slider; 38. a first spring; 39. a slide bar; 40. a second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a hydraulic breaker for tunnel excavation comprises a machine shell 1, protective side plates 2, connecting paneling 3, a top plate 4, an inclined strut 5, a machine frame 6, a mounting shaft 7, a stabilizing block 8, a base plate 9, a through bolt 10, a support rod 11, a bearing rod 12, a buffer plate 13, a fastening hole 14, a nitrogen cylinder 15, an oil cylinder 16, a piston 17, a tip heat treatment drill rod 18, a wear-resistant guard plate base 19, a reversing valve 20, a guide bush 21, an energy accumulator 22, a damping rubber 23, a buffer block 24, a fastening backing plate 25, a locking hole 26, a locking bolt 27, a fixing bolt 28, a T-shaped block 29, a push plate 30, an extrusion block 31, a guide rod 32, a fixing plate 33, a sliding plate 34, a push block 35, a push rod 36, a sliding block 37, a first spring 38, a sliding rod 39 and a second spring 40, wherein the protective side plates 2 are arranged at two ends of one side of the machine shell 1 through the connecting paneling, the top of the machine shell 1 is provided with a top plate 4 through a fastening bolt, two ends of the top of the machine shell 1 are symmetrically welded with inclined struts 5, and the tops of the inclined struts 5 are fixedly connected with the top plate 4; the top of the top plate 4 is welded and fixed with the rack 6 through the stabilizing block 8, mounting shafts 7 are arranged at two ends of the rack 6, the bottom of the inner wall of the stabilizing block 8 is connected with the base plate 9 through a buffer plate 13, the top of the base plate 9 is evenly welded and fixed with the top of the inner wall of the stabilizing block 8 through a bearing rod 12, and support rods 11 are welded at two ends of the inner wall of the stabilizing block 8; the top of the stabilizing block 8 is provided with a through bolt 10, the top of the top plate 4 is uniformly provided with fastening holes 14, and one end of the bottom of the through bolt 10 penetrates through the stabilizing block 8 and extends into the fastening holes 14; the two ends of the bottom of the top plate 4 are welded with buffer blocks 24, the bottom of the buffer block 24 is provided with a T-shaped block 29, one end of the T-shaped block 29 extends into the buffer block 24 and is welded and fixed with a push plate 30, one side of the push plate 30 corresponding to the two ends is welded with an extrusion block 31, the middle inside the buffer block 24 is welded with a fixed plate 33, one end of the extrusion block 31 is fixedly connected with the fixed plate 33 through a second spring 40, two sides of the extrusion block 31 are both provided with guide rods 32, one end of each guide rod 32 penetrates through the fixed plate 33 and is connected with a sliding plate 34, the middle of the top of the sliding plate 34 is welded with a push block 35, two ends of the push block 35 are connected with a sliding block 37 through push rods 36, the top of the inner wall of the buffer block 24 is provided with a sliding rod 39, the sliding block 37 is sleeved on the sliding rod 39, the sliding blocks 37 are connected with each other, a piston 17 is arranged in the oil cylinder 16, and an oil seal is arranged at the joint of the nitrogen cylinder 15 and the oil cylinder 16; a tip heat treatment drill rod 18 is arranged at one end of the bottom of the piston 17, and protective bushings are arranged at the outer sides of one end of the top of the tip heat treatment drill rod 18 and one end of the bottom of the piston 17; a T-shaped sleeve is arranged in the middle of the wear-resistant guard plate base 19 and positioned outside the tip heat treatment drill rod 18, and damping rubber 23 is arranged at the bottom of the inner wall of the machine shell 1 and positioned on one side of the T-shaped sleeve; a reversing valve 20 is arranged in the middle of one side of the oil cylinder 16, and a guide bush 21 is arranged at one end of the reversing valve 20; an energy accumulator 22 is arranged below the reversing valve 20, a fastening backing plate 25 is welded at the bottom of the energy accumulator 22, locking holes 26 are formed in four corners of the fastening backing plate 25, the energy accumulator 22 is uniformly connected with the fastening backing plate 25 in the circumferential direction through locking bolts 27, and a fixing bolt 28 is installed at one end of the surface of the energy accumulator 22;

the working principle is as follows: the protective side plate 2 is firmly connected with the machine shell 1 through the connecting paneling 3 to achieve a certain protective effect, the top plate 4 and the wear-resistant guard plate base 19 are firmly installed on the machine shell 1 through fastening bolts, the inclined strut 5 is arranged to achieve a stabilizing effect and is connected with an excavator through the installation shaft 7 on the rack 6, the stabilizing block 8 is connected with the top plate 4 through the through bolt 10 to facilitate installation and disassembly of the stabilizing block, the base plate 9 and the buffer plate 13 are supported, shock absorption rubber in the buffer plate 13 absorbs impact, and the bearing rod 12 is matched with the support rod 11 to increase the stability of the structure; hydraulic oil provides kinetic energy after passing through a high-pressure oil pipe in the oil cylinder 16, the kinetic energy is matched with the energy accumulator 22, pressure pulsation is absorbed, buffering protection, flow supplement and efficiency increase are achieved, the piston 17 is pushed to move upwards to compress a nitrogen chamber in the nitrogen cylinder 15, the direction is switched by the reversing valve 20 after the piston is pushed to the highest point, the high-pressure oil and nitrogen in the nitrogen chamber are compressed, the piston 17 is pushed to rapidly move downwards to knock the tip heat treatment drill rod 18 to complete crushing work, and the crushing effect is good; when the internal structure is vibrated in the crushing process, the nitrogen cylinder 15 bears pressure to push the T-shaped block 29 to move upwards, so that the push plate 30 pushes the extrusion block 31 to move, the extrusion block 31 extrudes the second spring 40 to compress and deform the second spring, and after the T-shaped block 29 reaches the position of the guide rod 32, the guide rod 32 pushes the sliding plate 34 to move, the push rod 36 is pushed by the push block 35, the sliding block 37 slides on the sliding rod 39, the first spring 38 is stretched, the pressure is dispersed, and the vibration influence is relieved; through fastening backing plate 25 and locking hole 26 cooperate, fix energy storage ware 22, the locking bolt 27 of circumferencial direction is with energy storage ware 22 and fastening backing plate 25 firm in connection, guarantees stability and leakproofness, and fixing bolt 28's setting further improves fixed effect.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The hydraulic breaker for tunnel excavation comprises a machine shell (1), a protective side plate (2), a connecting panel (3), a top plate (4), an inclined strut (5), a machine frame (6), a mounting shaft (7), a stabilizing block (8), a base plate (9), a through bolt (10), a support rod (11), a bearing rod (12), a buffer plate (13), a fastening hole (14), a nitrogen cylinder (15), an oil cylinder (16), a piston (17), a tip heat treatment drill rod (18), a wear-resistant guard plate base (19), a reversing valve (20), a guide bush (21), an energy accumulator (22), a damping rubber (23), a buffer block (24), a fastening cushion plate (25), a locking hole (26), a locking bolt (27), a fixing bolt (28), a T-shaped block (29), a push plate (30), an extrusion block (31), a guide rod (32), a fixing plate (33), a sliding plate (34), Ejector pad (35), push rod (36), slider (37), first spring (38), slide bar (39) and second spring (40), its characterized in that: the protective side plates (2) are mounted at two ends of one side of the machine shell (1) through connecting paneling (3), the wear-resistant guard plate base (19) is mounted at the bottom of the machine shell (1) through fastening bolts, the top plate (4) is mounted at the top of the machine shell (1) through fastening bolts, the top of the top plate (4) is welded and fixed with the machine frame (6) through a stabilizing block (8), mounting shafts (7) are arranged at two ends of the machine frame (6), the bottom of the inner wall of the stabilizing block (8) is connected with the base plate (9) through a buffer plate (13), the top of the base plate (9) is uniformly welded and fixed with the top of the inner wall of the stabilizing block (8) through bearing rods (12), through bolts (10) are mounted at the top of the stabilizing block (8), buffer blocks (24) are welded at two ends of the bottom of the top plate (4), and T-shaped blocks (29) are mounted at the, the one end of T type piece (29) stretches into in buffer block (24) with push pedal (30) welded fastening, extrusion piece (31) have all been welded at the both ends to one side of push pedal (30), the welding has fixed plate (33) in the middle of the inside of buffer block (24), the one end of extrusion piece (31) is through second spring (40) and fixed plate (33) fixed connection, guide bar (32) are all installed to the both sides of extrusion piece (31), the one end of guide bar (32) is passed fixed plate (33) and is connected with slide (34), the welding has ejector pad (35) in the middle of the top of slide (34), the both ends of ejector pad (35) are passed through push rod (36) and are connected with slider (37), slide bar (39) are installed at the inner wall top of buffer block (24), slider (37) cup joint on slide bar (39), and slider (37) are connected through first spring (38) each other, the bottom of T type piece (29) is passed through fastening bolt and is connected with nitrogen cylinder (15), the bottom of nitrogen cylinder (15) is provided with hydro-cylinder (16), and is provided with piston (17) in hydro-cylinder (16), the bottom one end of piston (17) is provided with most advanced heat treatment drill rod (18), install switching-over valve (20) in the middle of one side of hydro-cylinder (16), the below of switching-over valve (20) is provided with energy storage ware (22), the bottom welding of energy storage ware (22) has fastening backing plate (25), locking hole (26) have all been seted up in the four corners of fastening backing plate (25), the circumferencial direction of energy storage ware (22) is evenly connected with fastening backing plate (25) through locking bolt (27), fixing bolt (28) are installed to energy storage ware (22) surface one end.

2. The hydraulic breaker for tunnel excavation according to claim 1, characterized in that: bracing (5) are all welded symmetrically at the top both ends of casing (1), the top and roof (4) fixed connection of bracing (5).

3. The hydraulic breaker for tunnel excavation according to claim 1, characterized in that: fastening holes (14) are uniformly formed in the top of the top plate (4), and one end of the bottom of the through bolt (10) penetrates through the stabilizing block (8) and extends into the fastening holes (14).

4. The hydraulic breaker for tunnel excavation according to claim 1, characterized in that: and supporting rods (11) are welded at two ends of the inner wall of the stabilizing block (8).

5. The hydraulic breaker for tunnel excavation according to claim 1, characterized in that: a T-shaped sleeve is arranged in the middle of the wear-resistant guard plate base (19) and on the outer side of the tip heat treatment drill rod (18), and damping rubber (23) is arranged on one side, located on the T-shaped sleeve, of the bottom of the inner wall of the machine shell (1).

6. The hydraulic breaker for tunnel excavation according to claim 1, characterized in that: and one end of the reversing valve (20) is provided with a guide bushing (21).

7. The hydraulic breaker for tunnel excavation according to claim 1, characterized in that: and an oil seal is arranged at the joint of the nitrogen cylinder (15) and the oil cylinder (16).

8. The hydraulic breaker for tunnel excavation according to claim 1, characterized in that: and protective bushings are arranged on the outer sides of one end of the top of the tip heat treatment drill rod (18) and one end of the bottom of the piston (17).