CN217204371U - Quick excavation machinery crushing head device in subway station tunnel - Google Patents
Quick excavation machinery crushing head device in subway station tunnel Download PDFInfo
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- CN217204371U CN217204371U CN202220241266.5U CN202220241266U CN217204371U CN 217204371 U CN217204371 U CN 217204371U CN 202220241266 U CN202220241266 U CN 202220241266U CN 217204371 U CN217204371 U CN 217204371U
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- excavation
- quartering hammer
- drill rod
- arm
- subway station
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a quick excavation machinery broken head device in subway station tunnel, including the big arm on modern 485 model excavator, install the forearm at big arm front end and the hydraulic shock cracker that is located the forearm front end, big arm adopts the big arm of hydraulic shock cracker after changing over the weak point, thereby make arm of force excavation unlimited, hydraulic shock cracker includes the quartering hammer host computer and the quartering hammer drill rod of embedding quartering hammer host computer, the one end that quartering hammer drill rod kept away from the quartering hammer host computer is flat head style of calligraphy, be used for excavating and wait to excavate the stratum tunnel and control stratum tunnel and owe and dig, form the excavation outline line fast, excavation efficiency is high, labour saving and time saving, effectively reduce staff's work load, use flat head style of calligraphy quartering hammer drill rod can control tunnel owe to dig, material loss volume is little, excavation efficient condition, it is efficient to have excavation efficiency, material loss volume is little, And the excavation effect is good.
Description
Technical Field
The utility model relates to a subway station tunnel excavation technical field, concretely relates to broken head device of quick excavation machinery in subway station tunnel.
Background
At present, mechanical excavation can receive country rock intensity to city subway tunnel, the operation space, factor influences such as operation efficiency, lead to using low-power hydraulic shock breaker to excavate city subway tunnel inefficiency, the excavation progress is slow, work load is big, use high-power hydraulic shock breaker because the arm of force overlength, it is limited to excavate easily when excavating city subway tunnel, can't form the excavation contour line fast, prior art's excavation machinery adopts the broken head of button head usually, there is the overexcavation during the excavation sandstone tunnel, the efficiency is low, the big drawback of material consume.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a broken first device of quick excavation machinery in subway station tunnel excavates efficiently, reduces the loss, excavates to be good, solves because of arm of force overlength excavation is limited, adopt the broken head of button head to lead to surpassing the problem of digging the material consume.
Therefore, the utility model discloses the technical scheme who adopts does: the utility model provides a broken first device of quick excavation machinery in subway station tunnel, includes the big arm, the articulated forearm of installing at the big arm front end and the articulated hydraulic shock cracker of installing at the forearm front end, every articulated position department is equipped with a hydraulic telescoping mechanism, hydraulic shock cracker includes the quartering hammer host computer and the quartering hammer drill rod of fixed embedding quartering hammer host computer, the big arm adopts modern 485 model excavator big arm to shorten 40cm ~ 60cm and forms, the forearm adopts modern 485 model excavator forearm, the end that quartering hammer drill rod kept away from the quartering hammer host computer is the flat head of a style of calligraphy that extends about, the front and back both sides face contained angle of flat head of a style of calligraphy is 20 ~ 35.
Preferably, the length of the shortened large arm of the hydraulic impact crusher is 50cm, the large arm of the hydraulic impact crusher is shortened according to the conventional size of a subway station tunnel, and the problem that an excavation contour line cannot be formed quickly due to the fact that the large arm of the high-power hydraulic impact crusher is too long, operation excavation is limited and the high-power hydraulic impact crusher cannot be used for a long time is solved.
Further preferably, the overall length of the breaking hammer drill rod is 1000 mm-1500 mm, the breaking hammer drill rod is reasonable in length, and the excavation effect is prevented from being influenced by overlong or overlong.
Preferably, the diameter of the main rod of the drill rod of the breaking hammer is 100-150 mm, so that the structural rigidity is ensured.
The utility model has the advantages that:
(1) the big arm after adopting the shortening, because arm of force overlength when effectively avoiding using high-power hydraulic shock cracker, the limited condition of operation excavation takes place, can form the excavation contour line fast, excavation efficiency height, labour saving and time saving, the work load of effectively reducing the staff, the one end that quartering hammer drill rod kept away from the quartering hammer host computer is a style of calligraphy flat head for excavation is waited to excavate the stratum tunnel and is controlled the stratum tunnel and surpass owe and dig.
(2) The flat-head linear breaking hammer drill rod with the included angle of the front side face and the rear side face of 20-35 degrees can control the conditions of tunnel overbreak, small material loss amount and high excavation efficiency, can improve the excavation footage from the original 0.7m/d to 1.5m/d, can obtain huge benefits through simple improvement, and has great application prospect.
In conclusion, the method has the characteristics of high excavation efficiency, small material loss and good excavation effect.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of a hydraulic impact crusher.
Detailed Description
The invention will be further described by way of examples with reference to the accompanying drawings:
referring to fig. 1-2, a crushing head device of a quick tunnel excavation machine of a subway station comprises a large arm 1, a small arm 2 hinged to the front end of the large arm 1, and a hydraulic impact crusher 3 hinged to the front end of the small arm 2.
A hydraulic telescoping mechanism is provided at each hinge location.
The hydraulic impact crusher 3 is composed of a main body 31 of the breaking hammer and a drill rod 32 of the breaking hammer fixedly embedded in the main body 31 of the breaking hammer.
The large arm 1 is formed by shortening the large arm of a modern 485-model excavator by 40-60 cm, so that the arm of force is not limited in excavation, an excavation contour line can be formed quickly, and the excavation is quick.
The length of the big arm 1 of the hydraulic impact crusher is preferably 50cm, and the big arm of the hydraulic impact crusher is shortened according to the conventional size of a subway station tunnel, so that the problem that an excavation contour line cannot be quickly formed due to the fact that the arm of force of the high-power hydraulic impact crusher is too long, operation excavation is limited and the high-power hydraulic impact crusher cannot be quickly used is solved.
The forearm 2 is a modern 485 model excavator forearm.
The end of the breaking hammer drill rod 32 far away from the breaking hammer main machine 31 is a horizontal flat head extending left and right and is used for excavating a rock layer tunnel to be excavated and controlling the rock layer tunnel to be excavated.
The included angle of the front side surface and the rear side surface of the straight-line flat head is preferably 20-35 degrees.
The overall length of the breaking hammer drill rod 32 is preferably 1000 mm-1500 mm, the length is reasonable, and the excavation effect is prevented from being influenced by overlong or overlong.
The diameter of the main rod of the breaking hammer drill rod 32 is preferably 100 mm-150 mm, and the structural rigidity is guaranteed.
According to the tunnel radius size of the tunnel, the original large-power modern 485-model excavator boom is shortened by 50cm, the original small boom 2 is not changed, and the traditional breaking hammer drill rod 32 is changed into a flat-head straight-line shape from a round head shape.
The excavation operation is carried out on the sandstone tunnel with the pressure of 30 MPa-50 MPa, the over-under excavation of the tunnel is controlled, and the excavation footage can be improved to 1.5m/d from the original 0.7 m/d.
Claims (4)
1. The utility model provides a broken first device of quick excavation machinery in subway station tunnel, includes big arm (1), the articulated forearm (2) of installing at big arm (1) front end and the articulated hydraulic shock cracker (3) of installing at forearm (2) front end, every articulated position department is equipped with a hydraulic telescoping mechanism, hydraulic shock cracker (3) are including quartering hammer host computer (31) and quartering hammer drill rod (32) of fixed embedding quartering hammer host computer (31), its characterized in that: the large arm (1) is formed by shortening a large arm of a modern 485-model excavator by 40-60 cm, the small arm (2) is a small arm of the modern 485-model excavator, the end, far away from the breaking hammer main machine (31), of the breaking hammer drill rod (32) is a straight flat head extending left and right, and the included angle between the front side surface and the rear side surface of the straight flat head is 20-35 degrees.
2. The crushing head device of the rapid excavation machinery of the subway station tunnel according to claim 1, characterized in that: the shortened length of the large arm (1) of the hydraulic impact crusher is 50 cm.
3. The crushing head device of the rapid excavation machinery of the subway station tunnel according to claim 1, characterized in that: the overall length of the breaking hammer drill rod (32) is 1000 mm-1500 mm.
4. The crushing head device of the rapid excavation machinery of the subway station tunnel according to claim 1, characterized in that: the diameter of the main rod of the breaking hammer drill rod (32) is 100-150 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220241266.5U CN217204371U (en) | 2022-01-29 | 2022-01-29 | Quick excavation machinery crushing head device in subway station tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220241266.5U CN217204371U (en) | 2022-01-29 | 2022-01-29 | Quick excavation machinery crushing head device in subway station tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217204371U true CN217204371U (en) | 2022-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220241266.5U Active CN217204371U (en) | 2022-01-29 | 2022-01-29 | Quick excavation machinery crushing head device in subway station tunnel |
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| CN (1) | CN217204371U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115506802A (en) * | 2022-10-17 | 2022-12-23 | 中国铁建重工集团股份有限公司 | Impact rock cracking equipment and method |
-
2022
- 2022-01-29 CN CN202220241266.5U patent/CN217204371U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115506802A (en) * | 2022-10-17 | 2022-12-23 | 中国铁建重工集团股份有限公司 | Impact rock cracking equipment and method |
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