CN210239583U - Rock drill - Google Patents
Rock drill Download PDFInfo
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- CN210239583U CN210239583U CN201921359077.2U CN201921359077U CN210239583U CN 210239583 U CN210239583 U CN 210239583U CN 201921359077 U CN201921359077 U CN 201921359077U CN 210239583 U CN210239583 U CN 210239583U
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- liquid supply
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- rock drill
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Abstract
The utility model discloses a rock drill, which comprises a rock drill main body, a liquid supply device, a rotary driving device, a drill rod tail sleeve and a drill rod which are connected in sequence, wherein the liquid supply device comprises a liquid supply chamber and a transmission rod, and the transmission rod is arranged between the rock drill main body and the drill rod tail sleeve and has the function of transmitting impact; cleaning liquid in the liquid supply chamber flows into a chiseled hole through a liquid guide hole arranged on the transmission rod and a liquid conveying hole arranged on the drill rod, and stone chips in the hole are taken out; the rotary driving device comprises a driving motor and a transmission mechanism, and the driving motor drives the drill rod tail sleeve to rotate through the transmission mechanism. The utility model relates to a rationally, simple structure, its hydraulic system mutually independent with the rock drill supplies liquid device seals, has the good benefit of leakproofness.
Description
Technical Field
The utility model relates to a device, especially a rock drill, that creeps into soil layer or rock through fluid pressure impacted style.
Background
Rock drills are one of the important engineering devices for quarrying stone materials, and are indispensable in engineering construction in the fields of mines, roads, buildings and the like. The hydraulic rock drill drives the piston rod to rotate through the hydraulic power source and impact the drill rod in a reciprocating mode, so that the drill rod chisels out holes in rocks and rotates between impact, splitting of the rocks is accelerated, or explosive is convenient to place.
The discharging of stone chips can be accelerated by injecting flushing liquid into the holes, the piston rod and the drill rod of the hydraulic rock drill are coaxially provided with center holes, an annular sealing cavity is defined by the piston rod, the casing and sealing elements among the piston rod and the casing, the annular sealing cavity is communicated with the center holes through the radially arranged liquid injection holes in the piston rod, and the flushing liquid is injected into the holes through the annular sealing cavity, the liquid injection holes and the center holes.
The piston rod of the hydraulic rock drill needs to move axially and rotate circumferentially, and the sealing performance of the sealing element is poor. In the use process, after the sealing element is damaged and fails, the flushing fluid can move to a hydraulic system for driving the piston rod to act, so that hydraulic oil is deteriorated and scrapped, and property loss is caused.
Disclosure of Invention
In order to overcome that current rock drill exists that the leakproofness is poor, the flush fluid scurries into hydraulic system and causes loss of property not enough, the utility model provides a reasonable in design, simple structure, leakproofness are good, stop the flush fluid and scurrie into hydraulic system's rock drill.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a rock drill, its includes rock drill main part and a drilling rod, rock drill main part include an organism and an impact piston rod the end of organism corresponds the impact piston rod and is equipped with a drilling rod tail cover, drilling rod and drilling rod tail cover hookup mutually the drilling rod on coaxial running through be equipped with a transfusion hole, its characterized in that: a liquid supply device and a rotary driving device are arranged between the main body of the rock drill and the drill rod tail sleeve,
the liquid supply device comprises a liquid supply chamber and a transmission rod, the liquid supply chamber is fixed at the tail end of the machine body, a liquid supply cavity is arranged in the liquid supply chamber, one end of the transmission rod is arranged opposite to the impact piston rod, and the other end of the transmission rod penetrates through the liquid supply cavity and extends out of the liquid supply chamber; the transfer rod is axially provided with a liquid guide hole, and a communicating hole is arranged on the transfer rod between the liquid guide hole and the liquid supply cavity; the liquid supply chamber is provided with a liquid injection hole which is communicated with the liquid supply cavity;
the rotary driving device comprises a driving motor and a transmission mechanism, the driving motor is fixed on the outer wall of the liquid supply chamber, the transmission mechanism is connected between the driving motor and the drill rod tail sleeve, and the driving motor drives the drill rod tail sleeve to rotate through the transmission mechanism.
Drive mechanism include a drive gear and a driven gear cover, the non-rotation of drive gear set up on drive motor's output shaft, the coaxial setting of driven gear cover keep away from the one end of rock drill main part and mesh mutually with drive gear in supplying the liquid room the driven gear cover in be equipped with connect the through-hole, the non-normal running fit of drilling rod tail cover sets up the one end of keeping away from the rock drill main part at connect the through-hole, the one end of transmission pole stretches into in this connect the through-hole's the other end.
And a plurality of sealing rings are respectively arranged between the liquid supply chamber and the transmission rod and between the liquid supply chamber and the driven gear sleeve.
The utility model discloses a be equipped with respectively between rock drill main part and drilling rod and supply liquid device and rotary drive device. When the device is used, the impact force of the impact piston rod is transmitted to the drill rod through the transmission rod and the drill rod tail sleeve; flushing liquid in the liquid supply cavity is sequentially transferred to the end part of the drill rod through the communicating hole, the liquid guide hole and the drill rod tail sleeve, and the device is reasonable in design and simple in structure; the rotary driving device only drives the drill rod tail sleeve and the drill rod to rotate, the transmission rod does not rotate along with the drill rod, the axial displacement is small, and the sealing performance is good; the liquid supply device and a hydraulic system of the rock drill are mutually independent and sealed, flushing liquid cannot move into the hydraulic system, and property loss cannot be caused due to sealing failure.
Drawings
Fig. 1 is a perspective view of the present invention.
The labels in the figure are: 1. the rock drill comprises a rock drill main body, 11, a machine body, 12, an impact piston rod, 2, a drill rod, 21, a liquid conveying hole, 3, a drill rod tail sleeve, 4, a liquid supply device, 41, a liquid supply chamber, 411, a liquid supply chamber, 412, a liquid injection hole, 42, a transmission rod, 421, a liquid guide hole, 422, a communication hole, 5, a rotary driving device, 51, a driving motor, 52, a transmission mechanism, 521, a driving gear, 522, a driven gear sleeve, 523, a connecting through hole and 6 sealing rings.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
A rock drill includes a rock drill body 1 and a drill rod 2. As shown in fig. 1, the main body 1 of the rock drilling machine comprises a machine body 11 and an impact piston rod 12, the impact piston rod 12 is axially slidably arranged on the machine body 11 in a conventional manner, and the impact piston rod 12 axially slides back and forth along the machine body 11 under the control of a hydraulic system to do work.
As shown in fig. 1, a drill rod tail 3 is provided at the end of the machine body 11 corresponding to the impact piston rod 12, and the drill rod 2 is detachably mounted on the drill rod tail 3.
A liquid supply device 4 and a rotary driving device 5 are arranged between the main body 1 of the rock drill and the drill rod tail sleeve 3.
As shown in fig. 1, the liquid supply device 4 includes a liquid supply chamber 41 and a transmission rod 42, wherein the liquid supply chamber 41 is coaxially fixed on the end of the machine body 11, a liquid supply cavity 411 is provided inside the liquid supply chamber 41, one end of the transmission rod 42 is disposed opposite to the impact piston rod 12, the other end of the transmission rod passes through the liquid supply cavity 411 and extends out of the liquid supply chamber 41, and the transmission rod is axially pressed on the drill rod tail sleeve 3. The impact force generated by the impact piston rod 12 is transmitted to the drill rod 2 through the transmission rod 42 and the drill rod tail sleeve 3 in sequence, and the rock drilling operation of the drill rod 2 is realized.
As shown in FIG. 1, a liquid guide hole 421 is axially arranged on the transmission rod 42, the liquid guide hole 421 is communicated with the liquid supply cavity 411 through a communication hole 422 radially arranged on the transmission rod 42, a liquid transfer hole 21 is coaxially arranged on the drill rod 2 in a penetrating way, and flushing liquid in the liquid supply cavity 411 flows into a drilled hole through the communication hole 422, the liquid guide hole 421 and the liquid transfer hole 21 in sequence to carry out rock debris in the hole.
The rinse liquid in the liquid supply chamber 411 is continuously supplied through a liquid supply hole 412 provided in the liquid supply chamber 41.
As shown in fig. 1, the rotary drive device 5 includes a drive motor 51 and a transmission mechanism 52. A drive motor 51 is fixed to the outer wall of the liquid supply chamber 41, and a transmission mechanism 52 is coupled between the drive motor 51 and the drill rod tail sleeve 3. In this embodiment, the transmission mechanism 52 includes a driving gear 521 and a driven gear sleeve 522, wherein the driving gear 521 is non-rotatably disposed on the output shaft of the transmission motor, the driven gear sleeve 522 is coaxially disposed at one end of the liquid supply chamber 41 far away from the rock drill main body 1 and is engaged with the driving gear 521, a connecting through hole 523 is disposed in the driven gear sleeve 522, the drill rod tail sleeve 3 is non-rotatably disposed at one end of the connecting through hole 523 far away from the rock drill main body 1, and one end of the transmission rod 42 extends into the other end of the connecting through hole 523. The driving motor 51 drives the driving gear 521, and then the drill rod tail sleeve 3 and the drill rod 2 are driven to rotate through the driven gear sleeve 522, so that the drill rod 2 is accelerated to form a hole on the rock.
In order to prevent the flushing liquid from leaking, in fig. 1, a plurality of sealing rings 6 are provided between the liquid supply chamber 41 and the transfer rod 42, and a plurality of sealing rings 6 are provided between the liquid supply chamber 41 and the driven gear sleeve 522.
The utility model discloses a with rock drill main part 1, supply liquid device 4, rotary driving device 5 independent setting respectively for flush fluid and hydraulic system mutually independent are sealed, reduce because of sealed inefficacy cause loss of property's risk, its reasonable in design, simple structure, and the leakproofness is good.
Claims (3)
1. The utility model provides a rock drill, its includes rock drill main part and a drilling rod, rock drill main part include an organism and an impact piston rod the end of organism corresponds the impact piston rod and is equipped with a drilling rod tail cover, drilling rod and drilling rod tail cover hookup mutually the drilling rod on coaxial running through be equipped with a transfusion hole, its characterized in that: a liquid supply device and a rotary driving device are arranged between the main body of the rock drill and the drill rod tail sleeve,
the liquid supply device comprises a liquid supply chamber and a transmission rod, the liquid supply chamber is fixed at the tail end of the machine body, a liquid supply cavity is arranged in the liquid supply chamber, one end of the transmission rod is arranged opposite to the impact piston rod, and the other end of the transmission rod penetrates through the liquid supply cavity and extends out of the liquid supply chamber; the transfer rod is axially provided with a liquid guide hole, and a communicating hole is arranged on the transfer rod between the liquid guide hole and the liquid supply cavity; the liquid supply chamber is provided with a liquid injection hole which is communicated with the liquid supply cavity;
the rotary driving device comprises a driving motor and a transmission mechanism, the driving motor is fixed on the outer wall of the liquid supply chamber, the transmission mechanism is connected between the driving motor and the drill rod tail sleeve, and the driving motor drives the drill rod tail sleeve to rotate through the transmission mechanism.
2. A rock drill according to claim 1, characterized in that: drive mechanism include a drive gear and a driven gear cover, the non-rotation of drive gear set up on drive motor's output shaft, the coaxial setting of driven gear cover keep away from the one end of rock drill main part and mesh mutually with drive gear in supplying the liquid room the driven gear cover in be equipped with connect the through-hole, the non-normal running fit of drilling rod tail cover sets up the one end of keeping away from the rock drill main part at connect the through-hole, the one end of transmission pole stretches into in this connect the through-hole's the other end.
3. A rock drill according to claim 2, characterized in that: and a plurality of sealing rings are arranged between the liquid supply chamber and the transmission rod, and a plurality of sealing rings are arranged between the liquid supply chamber and the driven gear sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921359077.2U CN210239583U (en) | 2019-08-21 | 2019-08-21 | Rock drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921359077.2U CN210239583U (en) | 2019-08-21 | 2019-08-21 | Rock drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210239583U true CN210239583U (en) | 2020-04-03 |
Family
ID=69964208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921359077.2U Active CN210239583U (en) | 2019-08-21 | 2019-08-21 | Rock drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210239583U (en) |
-
2019
- 2019-08-21 CN CN201921359077.2U patent/CN210239583U/en active Active
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