CN211368849U

CN211368849U - Earth and stone excavation tool

Info

Publication number: CN211368849U
Application number: CN201922258388.6U
Authority: CN
Inventors: 陶恩强
Original assignee: Guangdong Hongzhan Construction Engineering Co ltd
Current assignee: Guangdong Hongzhan Construction Engineering Co ltd
Priority date: 2019-12-14
Filing date: 2019-12-14
Publication date: 2020-08-28
Anticipated expiration: 2029-12-14

Abstract

The utility model relates to an earthwork digging tool relates to the technical field of civil engineering equipment, its including the installation casing with set up in the inside pneumatic cylinder of installation casing, the pneumatic cylinder include the cylinder body with slide set up in the piston rod of cylinder body, the end fixing of piston rod is provided with the tup, the fixed anticreep lid that is provided with of lower extreme of installation casing, the anticreep lid slides and is provided with broken subassembly, broken subassembly wears to locate including sliding the drill rod of anticreep lid, the drill rod is located a pot head in the installation casing is equipped with the sleeve of making an uproar, the tup with the conflict position of drill rod is located in the sleeve of making an uproar falls. Noise generated when the hammer head impacts with the drill rod is firstly reflected in the noise reduction sleeve and then transmitted into the mounting shell, and the noise can be weakened along with the increase of the reflection times, so that the earth and stone excavating tool can reduce the noise generated during crushing.

Description

Earth and stone excavation tool

Technical Field

The utility model belongs to the technical field of the technique of civil engineering equipment and specifically relates to an earthwork digging tool is related to.

Background

With the development of economy, the demand of infrastructure construction is more and more vigorous, and in the present stage, concrete roads, bridges, building construction renovation and the like often meet firm hard soil, rock layers and the like, the bucket of a general excavator is large in size, and in the environments such as concrete, rock layers and the like, the stress of bucket teeth of the bucket is dispersed and uneven, so that the bucket cannot be directly excavated, and the rock layers need to be crushed by a crushing hammer and then excavated. The hydraulic breaking hammer mainly comprises a hydraulic cylinder and a drill rod which generate impact force, and the drill rod transmits the impact force to solids such as ore, concrete and the like after receiving the impact force so as to achieve the purpose of breaking the solids

However, in practice, the hydraulic hammer moves down at a high speed to impact with the drill rod, so that a large impact force is generated and strong noise is accompanied. The high-intensity noise easily causes fatigue of workers, and seriously harms the physical and psychological health of human bodies.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an earthwork digging tool has the advantage that the noise produced when reducing the breakage.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides an earthwork excavation tool, including the installation casing with set up in the inside pneumatic cylinder of installation casing, the pneumatic cylinder include the cylinder body with slide set up in the piston rod of cylinder body, the end fixing of piston rod is provided with the tup, the fixed anticreep lid that is provided with of lower extreme of installation casing, the anticreep lid slides and is provided with crushing unit, crushing unit is including sliding to wear to locate the drill rod of anticreep lid, a pot head that the drill rod is located in the installation casing is equipped with the sleeve of making an uproar, the tup with the conflict position of drill rod is located in the sleeve of making an uproar.

By adopting the technical scheme, when the crushing device works, the mounting shell descends to enable the drill rod to be abutted to an object to be crushed, and then the piston rod of the hydraulic cylinder reciprocates to impact the drill rod, so that the drill rod can crush the object to be crushed;

noise generated when the hammer head impacts with the drill rod is firstly reflected in the noise reduction sleeve and then transmitted into the mounting shell, and the noise can be weakened along with the increase of the reflection times, so that the earth and stone excavating tool can reduce the noise generated during crushing.

The utility model discloses further set up to: the inner wall of the noise reduction sleeve is inclined outwards in the direction close to the drill rod.

Through adopting above-mentioned technical scheme, the noise that produces when tup and drill rod are strikeed can fall the sleeve of making an uproar inside under the inner wall effect that the sleeve slope of making an uproar set up falls to the noise to increased the reflection number of times of noise in falling the sleeve of making an uproar, makeed the noise reduction from this.

The utility model discloses further set up to: the hammer head is arranged in a table body to be provided with a first large end and a first small end, a first inclined plane is formed between the first large end and the first small end, the first large end is fixedly connected with the piston rod, and the first small end is in impact collision with the drill rod.

Through adopting above-mentioned technical scheme, the noise that produces when tup and drill rod strike reflects back on first inclined plane, and the noise takes place to fall in the sleeve of making an uproar under the effect on first inclined plane to increased the reflection number of times of noise in falling the sleeve of making an uproar, makeed the noise reduction from this.

The utility model discloses further set up to: the utility model discloses a drill rod impact collision protection device, including drill rod, noise reduction sleeve, hammer head, drill rod, noise reduction sleeve, drill rod.

Through adopting above-mentioned technical scheme, the inner wall of seal cover is contradicted with first inclined plane and is fallen the sleeve of making an uproar in order to seal to reduce the noise that the tup produced at the drill rod terminal surface and spill and scatter the installation casing, thereby realized the purpose of noise reduction.

The utility model discloses further set up to: the drill rod is detachably provided with a drill bit at one end far away from the hydraulic cylinder, the drill bit is arranged in a table body mode to be provided with a second large end and a second small end, and the second large end is abutted to the end face of the drill rod.

By adopting the technical scheme, when the drill bit is damaged, the earthwork digging tool can be continuously used only by replacing the drill bit, so that the service life of the earthwork digging tool is prolonged.

The utility model discloses further set up to: one end of the drill rod, which is far away from the hydraulic cylinder, is detachably provided with a sound insulation sleeve, the drill bit is positioned in the sound insulation sleeve, and the second small end of the drill bit extends out of the sound insulation sleeve.

Through adopting above-mentioned technical scheme, the noise that produces when the drill bit collides with the impact of the object of treating broken enters into the sound insulation sleeve, and this part noise carries out multiple reflection in the sound insulation sleeve so that the noise weakens.

The utility model discloses further set up to: the opening of one end of the sound insulation sleeve, which is far away from the drill rod, is gradually reduced along the direction far away from the drill rod.

By adopting the technical scheme, the inner wall of the sound insulation sleeve inclines outwards along the direction close to the drill rod, so that the reflection times of noise in the sound insulation sleeve are increased, and the noise is weakened.

The utility model discloses further set up to: keep away from the anticreep lid one side of pneumatic cylinder is fixed and is provided with the shock attenuation elastic component, the tip of shock attenuation elastic component with the soundproof sleeve is close to the one end of anticreep lid is contradicted.

By adopting the technical scheme, when the hammer head impacts the drill rod, the reverse acting force of the impact force acts on the hydraulic cylinder and is transmitted to the mounting shell so as to enable the mounting shell to vibrate, and the mounting shell collides with the drill rod when vibrating, so that the noise is increased, and the damping elastic piece can weaken the collision between the mounting shell and the drill rod, thereby reducing the noise generated by the earth and stone excavation tool.

To sum up, the utility model discloses a beneficial technological effect does:

1. noise generated when the hammer head impacts the drill rod is firstly reflected in the noise reduction sleeve and then transmitted into the mounting shell, and the noise can be weakened along with the increase of the reflection times, so that the earth and stone excavating tool can reduce the noise generated during crushing;

2. noise generated when the hammer head impacts the drill rod can be reflected inside the noise reduction sleeve under the action of the obliquely arranged inner wall of the noise reduction sleeve, so that the reflection times of the noise in the noise reduction sleeve are increased, and the noise is reduced;

3. noise generated when the drill bit collides with an object to be crushed in an impact mode enters the sound insulation sleeve, and the noise is reflected for multiple times in the sound insulation sleeve so that the noise is weakened.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

fig. 3 is a schematic diagram of the explosion structure of the present invention.

In the figure, 0, vehicle body; 1. installing a shell; 2. a hydraulic cylinder; 21. a cylinder body; 22. a piston rod; 3. a hammer head; 31. a first large end; 32. a first small end; 33. a first inclined surface; 4. an anti-drop cover; 41. a slide hole; 5. a crushing assembly; 51. a drill rod; 511. a first external thread section; 512. a second outer thread section; 52. a noise reduction sleeve; 521. a first internal thread segment; 53. sealing sleeves; 531. an end face attaching part; 532. an inner wall attachment part; 54. a drill bit; 541. a second large end; 542. a second small end; 55. a sound insulating sleeve; 551. a second internal thread segment; 6. a shock-absorbing elastic member; 7. and a top cover.

Detailed Description

A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1, for the utility model discloses an earthwork digging tool sets up in the front end of automobile body 0 to the cantilever control who receives the 0 front end of automobile body goes up and down.

Referring to fig. 2 and 3, the earth and rock excavation tool includes a mounting case 1 and a hydraulic cylinder 2 provided inside the mounting case 1.

The mounting housing 1 is in a square or round tubular arrangement. The axis of the installation shell 1 is arranged along the vertical direction, and the opening of the installation shell 1 is positioned at the upper end and the lower end.

Further, a top cover 7 is covered on the upper end opening of the mounting case 1. The top cover 7 is formed in the same size as the upper end opening of the mounting case 1 so that the top cover 7 can close the upper end opening of the mounting case 1.

Further, an anti-drop cover 4 is fixedly arranged on the lower end opening of the mounting housing 1. Preferably, the mounting housing 1 and the anti-drop cover 4 are fixed by bolts and nuts.

The middle part of anticreep lid 4 is provided with slide opening 41 along vertical direction run-through, and slide opening 41 is cylindrical through-hole setting.

The hydraulic cylinder 2 includes a cylinder body 21 and a piston rod 22 slidably provided in the cylinder body 21. The cylinder 21 is located at the upper end of the mounting case 1 to be fixedly connected with the inner wall of the mounting case 1. The piston rod 22 is located below the cylinder 21 to slide in the vertical direction inside the mounting case 1.

Further, the end of the piston rod 22 is fixedly provided with the hammer head 3. The hammer head 3 is disposed in a table body to have a first large end 31 and a first small end 32, and a first inclined surface 33 is formed between the first large end 31 and the first small end 32. The axis of the hammer head 3 coincides with the axis of the piston rod 22. The first large end 31 is fixedly connected to the piston rod 22, and the first small end 32 is in impact contact with the end surface of the drill rod 51 facing the cylinder 21.

Referring to fig. 2 and 3, the anti-drop cover 4 is slidably provided with a crushing assembly 5. Specifically, the crushing assembly 5 includes a drill rod 51 movably inserted through the slide hole 41 of the anti-slip cover 4. The drill rod 51 is arranged in a round rod shape. The axis of the drill rod 51 is arranged in the vertical direction to be parallel to or coincide with the axis of the piston rod 22. The upper end of the drill rod 51 is located in the installation case 1, and the lower end of the drill rod 51 passes through the escape prevention cover 4 to be located below the installation case 1. Preferably, the drill rod 51 has a first external thread section 511 and a second external thread section 512 on the outer circumferential surface thereof, the first external thread section 511 being located at the upper end of the drill rod 51, and the second external thread section 512 being located at the lower end of the drill rod 51.

Further, a noise reduction sleeve 52 is sleeved on the upper end of the drill rod 51, and a sound insulation sleeve 55 is sleeved on the lower end of the drill rod 51.

The noise reduction sleeve 52 is disposed in a tubular configuration. The axis of the noise reduction sleeve 52 coincides with the axis of the drill rod 51. The upper half of the inner wall of the noise reduction sleeve 52 is inclined outwardly in the direction close to the drill rod 51, so that the upper half inside the noise reduction sleeve 52 forms a frustoconical noise reduction space. The upper end face of the drill rod 51 is located in the noise damping space. Preferably, the lower half of the noise reduction sleeve 52 has a first internal thread section 521 on its inner wall that engages the first external thread section 511 to provide a threaded connection between the noise reduction sleeve 52 and the drill rod 51.

Further, a sealing sleeve 53 is disposed around the opening of the noise reduction sleeve 52 at an end remote from the anti-slip cover 4. The seal cover 53 includes an end surface attaching portion 531 attached to the upper end surface of the drill rod 51 and an inner wall attaching portion 532 attached to the inner wall of the noise reduction sleeve 52. When the hammer head 3 collides with the drill rod 51, the joint between the end surface abutting portion 531 and the inner wall abutting portion 532 collides with the first inclined surface 33 of the hammer head 3.

The acoustic sleeve 55 is arranged in a tubular shape. The axis of the noise dampening sleeve 55 coincides with the axis of the drill rod 51. The lower end opening of the noise insulating sleeve 55 is gradually reduced in the direction away from the drill rod 51, so that a circular truncated cone-shaped noise insulating space is formed in the lower half portion of the inside of the noise insulating sleeve 55. Preferably, the upper half of the inner wall of the noise dampening sleeve 55 has a second internal threaded section 551 which engages the second external threaded section 512 to provide a threaded connection between the noise dampening sleeve 55 and the drill rod 51.

Further, a drill bit 54 detachably connected to the drill rod 51 is provided in the sound-deadening space. Bit 54 is disposed in a frustum or cone to have a second major end 541 and a second minor end 542. The axis of the bit 54 coincides with the axis of the shank 51. The second large end 541 abuts against the lower end surface of the drill rod 51 and is fixedly connected thereto by a bolt. A second small end 542 of the bit 54 projects below the noise dampening sleeve 55.

Further, the drill rod 51 is sleeved with a damping elastic member 6. The shock-absorbing elastic member 6 is located below the escape prevention cover 4. Damping elastic member 6's one end and the lower terminal surface fixed connection of anticreep lid 4, damping elastic member 6's the other end and the one end conflict and fixed connection that soundproof sleeve 55 is close to anticreep lid 4.

The implementation principle of the embodiment is as follows: during operation, the mounting shell 1 descends to enable the drill rod 51 to be abutted to an object to be crushed, and then the piston rod 22 of the hydraulic cylinder 2 reciprocates to impact the drill rod 51, so that the drill rod 51 drives the drill bit 54 to crush the object to be crushed;

noise generated when the hammer head 3 impacts the drill rod 51 is firstly reflected in the noise reduction sleeve 52 and then transmitted into the mounting shell 1, and noise generated when the drill head 54 impacts an object to be crushed is reflected in the sound insulation sleeve 55 and then transmitted to the outside, so that the noise can be weakened along with the increase of the reflection times.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The earth and rock excavation tool comprises an installation shell (1) and a hydraulic cylinder (2) arranged in the installation shell (1), wherein the hydraulic cylinder (2) comprises a cylinder body (21) and a piston rod (22) arranged in the cylinder body (21) in a sliding mode, and is characterized in that a hammer head (3) is fixedly arranged at the end portion of the piston rod (22), an anti-falling cover (4) is fixedly arranged at the lower end of the installation shell (1), a crushing assembly (5) is arranged in the anti-falling cover (4) in a sliding mode, the crushing assembly (5) comprises a drill rod (51) arranged in the anti-falling cover (4) in a penetrating mode in a sliding mode, a noise reduction sleeve (52) is sleeved at one end, located in the installation shell (1), of the hammer head (3) and the drill rod (51), and in the noise reduction sleeve (52), wherein the collision position of the hammer.

2. An earth and rock excavation tool according to claim 1, characterized in that the inner wall of the noise reduction sleeve (52) is inclined outwardly in a direction close to the drill rod (51).

3. An earth and rock excavating tool according to claim 1, characterized in that the hammer head (3) is arranged in a table shape to have a first large end (31) and a first small end (32), a first inclined surface (33) is formed between the first large end (31) and the first small end (32), the first large end (31) is fixedly connected with the piston rod (22), and the first small end (32) is in impact collision with the drill rod (51).

4. An earthwork excavation tool according to claim 3, wherein a sealing sleeve (53) is provided around an opening of an end of the noise reduction sleeve (52) remote from the anti-drop cover (4), and when the hammer head (3) collides with the drill rod (51), an inner wall of the sealing sleeve (53) collides with the first inclined surface (33) of the hammer head (3).

5. An earth and rock excavation tool according to claim 1, characterized in that the end of the drill rod (51) remote from the hydraulic cylinder (2) is detachably provided with a bit (54), the bit (54) being arranged in the form of a table to have a second large end (541) and a second small end (542), the second large end (541) abutting the end face of the drill rod (51).

6. An earth and rock excavation tool according to claim 5, characterized in that the end of the drill rod (51) remote from the hydraulic cylinder (2) is detachably provided with a sound insulating sleeve (55), the drill bit (54) being located inside the sound insulating sleeve (55), the second small end (542) of the drill bit (54) protruding out of the sound insulating sleeve (55).

7. An earth and rock excavation tool according to claim 6, characterized in that the opening of the end of the sound insulating sleeve (55) remote from the drill rod (51) is gradually decreasing in a direction away from the drill rod (51).

8. An earth and rock excavation tool according to claim 6, characterized in that a side of the retaining cover (4) remote from the hydraulic cylinder (2) is fixedly provided with a shock-absorbing elastic member (6), and an end of the shock-absorbing elastic member (6) abuts against an end of the sound-insulating sleeve (55) close to the retaining cover (4).