CN217841533U - Rock drill water jacket positioning guide mechanism, rock drill flushing system and rock drill - Google Patents
Rock drill water jacket positioning guide mechanism, rock drill flushing system and rock drill Download PDFInfo
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- CN217841533U CN217841533U CN202222375922.3U CN202222375922U CN217841533U CN 217841533 U CN217841533 U CN 217841533U CN 202222375922 U CN202222375922 U CN 202222375922U CN 217841533 U CN217841533 U CN 217841533U
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Abstract
The utility model discloses a rock drill water jacket positioning guide mechanism, a rock drill flushing system and a rock drill, wherein the outer end part of a water jacket is provided with a first circumferential positioning structure, and when the water jacket is installed, a circumferential adjusting tool is matched with the first circumferential positioning structure; when the water jacket is assembled, the angle of the water jacket can be adjusted through the circumferential adjusting tool, the circumferential adjusting tool is removed after the angle position is adjusted, and then the stop ring is installed, so that the circumferential angle of the water jacket can be conveniently adjusted. Or a positioning guide block is arranged between the water jacket and the stop ring, and second circumferential positioning structures are arranged between the positioning guide block and the water jacket and between the positioning guide block and the machine head; the positioning guide block and the machine head are circumferentially fixed through the radial positioning mechanism, the water jacket is circumferentially fixed through the circumferential positioning structure and the positioning guide block, so that the position between the water jacket and the machine head is relatively fixed, and the water jacket can be positioned in the installation process of the positioning guide block.
Description
Technical Field
The utility model relates to a rock drill water jacket assembly technical field especially indicates a rock drill water jacket positioning guide mechanism and rock drill rinse-system and rock drill.
Background
The rock drill is key equipment for drilling and blasting tunnel tunneling, and comprises a propelling system, an impacting system, a rotating system, a flushing system, a lubricating system, a buffering system and the like. The flushing system comprises a machine head, a water jacket, a flushing joint, a drill bit shank, a stop ring and the like, and mainly provides flushing water for being conveyed forwards through the drill bit shank, so that the functions of removing scraps in the rock drilling process of the drill bit, keeping the drilling position clean, cooling the drill bit and the like are realized.
The water jacket, the machine head and the flushing joint in the rock drill flushing system are matched through shaft holes, and the water jacket is assembled and fastened after being pressed to the position of the machine head. For example, the chinese utility model patent with the grant publication date of 2012.09.05 and the grant publication number of CN202417298U discloses a sealing and guiding device for a drill bit shank of a hydraulic rock drill, and the water jacket, the machine head and the flushing joint are matched with each other by means of a shaft hole. Because the water jacket is of a circumferential structure, the water holes of the water jacket are easy to be misaligned with the positions of the water holes of the machine head after press mounting, and the radial position of the water jacket needs to be adjusted again. However, the water jacket after press mounting has large radial adjustment resistance due to compression of the sealing ring, the sealing ring is easy to damage, the reliability of a flushing system is reduced, and the fault risk of the hydraulic rock drill is increased. Therefore, it is necessary to design a non-press-fitting water jacket positioning mechanism.
Disclosure of Invention
Not enough to among the above-mentioned background art, the utility model provides a rock drill water jacket location guiding mechanism and rock drill rinse-system and rock drill has solved rock drill water jacket location and has been difficult to the technical problem of adjustment, reliability difference.
The technical scheme of the application is as follows:
a rock drill water jacket positioning guide mechanism, the outer end of the water jacket is provided with a first circumferential positioning structure, when the water jacket is installed, a circumferential adjusting tool is matched with the first circumferential positioning structure; when the water jacket is assembled, the angle of the water jacket can be adjusted through the circumferential adjusting tool, the circumferential adjusting tool is removed after the angle position is adjusted, and then the stop ring is installed, so that the circumferential angle of the water jacket can be conveniently adjusted.
Or a positioning guide block is arranged between the water jacket and the stop ring, and second circumferential positioning structures are arranged between the positioning guide block and the water jacket and between the positioning guide block and the machine head. The positioning guide block and the machine head are circumferentially fixed through the radial positioning mechanism, the water jacket is circumferentially fixed through the circumferential positioning structure and the positioning guide block, the relative fixation of the position between the water jacket and the machine head is further realized, and the water jacket can be positioned in the installation process of the positioning guide block.
Further, the first circumferential positioning structure comprises an internal thread or an external thread arranged at the end part of the water jacket, and the end part of the circumferential adjusting tool is provided with an external thread section matched with the internal thread or an internal thread section matched with the external thread. When the water jacket is assembled, the circumferential adjusting tool can be screwed into the internal thread or the external thread to adjust the angle of the water jacket, the circumferential adjusting tool is removed after the angular position is adjusted, and then the stop ring is installed to conveniently adjust the circumferential angle of the water jacket.
Or the first circumferential positioning structure comprises a circumferential positioning hole or a circumferential positioning column arranged at the end part of the water jacket, and the end part of the circumferential adjusting tool is provided with a plug-in connector matched with the circumferential positioning hole or a sleeve matched with the circumferential positioning column. When the water jacket is assembled, the angle of the water jacket can be adjusted through the circumferential positioning hole or the circumferential positioning column of the circumferential adjusting tool, the circumferential adjusting tool is removed after the angular position is adjusted, and then the stop ring is installed, so that the circumferential angle of the water jacket can be conveniently adjusted.
Or the first circumferential positioning structure comprises at least two grooves arranged at the end part of the water jacket, and the end part of the circumferential adjusting tool is provided with a clamping jaw matched with the grooves. Similar to a thread adjusting mode, the water jacket is adjusted in angle through the assembly of the clamping jaws and the grooves of the water jacket, the circumferential adjusting tool is removed after the angular position is adjusted and the angular position is adjusted, and then the stop ring is installed, so that the circumferential angle of the water jacket can be conveniently adjusted.
Or, the first circumferential positioning structure comprises at least two protrusions arranged at the end part of the water jacket, and the end part of the circumferential adjusting tool is provided with an assembling hole matched with the protrusions. Similar to a thread adjusting mode, the angle adjustment of the water jacket is realized through the assembly of the assembly holes and the protrusions of the water jacket, the circumferential adjusting tool is removed after the angle position is adjusted, and then the stop ring is installed, so that the circumferential angle of the water jacket can be conveniently adjusted.
Further, the second circumferential locating structure is a protrusion structure and a groove structure which are matched with each other. The positioning guide block can play a role in positioning the water jacket, and the stop ring can be directly installed without detaching the positioning guide block after being installed in place.
Alternatively, the second circumferential locating feature is a cooperating locating pin and pin hole. Similar to the positioning function of the convex structure and the concave structure, the positioning pin and the pin hole can play the same positioning function.
Furthermore, the positioning pin is in interference fit with the pin hole, so that the positioning accuracy and stability are fully ensured.
Further, the positioning pins are arranged along the axial direction of the water jacket or along the radial direction of the water jacket, and the positioning accuracy and stability can be guaranteed regardless of the arrangement direction of each positioning pin.
Furthermore, the positioning pin comprises a machine head positioning pin and a water jacket positioning pin which are matched with the positioning guide block, a machine head pin hole matched with the machine head positioning pin is formed in the machine head, and a water jacket pin hole matched with the water jacket positioning pin is formed in the water jacket. Specifically, the locating pin both can predetermine on the location guide block, also can predetermine on aircraft nose and water jacket.
Furthermore, the positioning guide block is of a step-shaped annular structure, the inner wall of the annular structure is in guide fit with the outer wall of the drill shank, the small-diameter section of the annular structure is in plug fit with the assembly hole of the installation water jacket, and the large-diameter section of the annular structure is in plug fit with the assembly hole of the installation stop ring. The inner wall of the positioning guide block provides guidance for the tail end of the drill bit shank, so that the drill bit shank is more stable, the direct contact between the water jacket and the stop ring is avoided, the influence on the stop ring during drilling is reduced, the failure risk of the rock drill is reduced, the rock drilling efficiency of the rock drill is improved, the maintenance period of the rock drill is prolonged, and the working efficiency of the rock drill is improved.
A rock drill flushing system comprises the rock drill water jacket positioning guide mechanism.
A rock drill comprising the rock drill flushing system.
Compared with the prior art, the utility model discloses a can simplify and optimize rock drill aircraft nose water jacket assembly process, not only can once install through location structure and target in place, need not adjust the water jacketed circumference direction many times, can increase bore bit tail direction stability moreover, the snap ring inefficacy risk when reducing the chisel hole, the life of extension water jacket sealing ring and sealing member improves the reliable stability that the rock drill washed the mechanism, improves hydraulic rock drill availability factor and work efficiency. Therefore, the utility model has the advantages of improve rock drill life-span and performance, the maintenance cycle is protected to the extension rock drill dimension, reduces rock drill inefficacy risk.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive work.
Fig. 1 is a cross-sectional view of the present invention;
FIG. 2 is a partial perspective view of the right side of the handpiece of FIG. 1;
FIG. 3 is a perspective view of the water jacket of FIG. 1;
FIG. 4 is a perspective view of the stop ring of FIG. 1;
reference numbers in the figures:
1-drill rod tail, 2-machine head, 3-guide sleeve, 4-sealing ring, 5-O-shaped ring, 6-flushing joint, 7-water jacket, 8-positioning guide block, 9-stop ring, 10-water jacket positioning pin, 11-machine head positioning pin, 12-water jacket pin hole, 13-machine head pin hole, 14-positioning step, 15-sealing installation ring groove and 16-connecting hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
A rock drill water jacket positioning guide mechanism is shown in figure 1 and comprises a drill rod shank 1 inserted into a machine head 2, a water jacket 7 and a stop ring 9 are axially and sequentially arranged between the outer wall of the drill rod shank 1 and the inner wall of the machine head 2, and the axial degree of freedom of the water jacket 7 is limited by a stop structure on the machine head 2 at the front part and the stop ring 9 at the rear part, so that axial positioning is realized.
The water jacket 7 is hermetically arranged between the outer wall of the drill bit shank 1 and the inner wall of the machine head 2, the inner cavity of the water jacket 7 is hermetically connected with the inner cavity of the drill bit shank 1, namely, the water inlet 13 of the inner cavity of the drill bit shank 1 is positioned in the length space of the water jacket 7. Because the two ends of the water jacket 7 are respectively sealed with the outer wall of the drill shank 1 and the inner wall of the machine head 2, the water inlet 13 is positioned in the closed cavity of the water jacket 7 and is isolated from the outside of the water jacket 7.
The flushing connector 6 penetrates through the side wall of the machine head 2, the side wall of the water jacket 7 and the inner cavity of the water jacket 7 in a sealing connection mode. Namely, the side wall of the machine head 2 is provided with a mounting hole matched with the flushing joint 6, and the side wall of the water jacket 7 is provided with a connecting hole 16 matched with the flushing joint 6. After the water jacket 7 is assembled, the mounting hole coaxially corresponds to the connecting hole 16, the flushing joint 6 is directly inserted into the mounting hole and the connecting hole, and the inner cavity of the flushing joint 6 is hermetically connected with the inner cavity of the water jacket 7, namely the inner cavity of the flushing joint 6 is communicated with the inner cavity of the drill shank 1.
In a preferred embodiment, the flushing connector 6 is in threaded connection or interference connection with the mounting hole, and the flushing connector 6 is in threaded connection or interference connection with the connecting hole.
According to the technical scheme, the water jacket 7 is arranged inside the machine head 2, the water jacket 7 is arranged in a sealing mode through a sealing part, the water jacket 7 is positioned and installed through the guide sleeve 3 and the stop ring 9, and the flushing connector 6 is directly inserted into the machine head 2 and is connected with the water jacket 7 in a sealing mode after the water jacket 7 is positioned and sealed. Through the structure, the press fitting operation is avoided during assembly, the water jacket 7 and the machine head water hole are convenient and fast to align, the sealing part is not easy to damage, and the reliability of the flushing system is improved.
The outer end part of the water jacket 7 is provided with a first circumferential positioning structure as shown in fig. 1-4, and when the water jacket 7 is installed, a circumferential adjusting tool is matched with the first circumferential positioning structure; when the water jacket is assembled, the screw or the bolt can be screwed into the internal thread to adjust the angle of the water jacket, the screw or the bolt is removed after the angle position is adjusted, and then the stop ring is installed, so that the circumferential angle of the water jacket 7 can be conveniently adjusted.
Or a positioning guide block 8 is arranged between the water jacket 7 and the stop ring 9, and second circumferential positioning structures are arranged between the positioning guide block 8 and the water jacket 7 and between the positioning guide block 8 and the machine head 2. The positioning guide block and the machine head are circumferentially fixed through the radial positioning mechanism, the water jacket is circumferentially fixed through the circumferential positioning structure and the positioning guide block, the relative fixation of the position between the water jacket and the machine head is further realized, and the water jacket can be positioned in the installation process of the positioning guide block.
As a preferred embodiment, the first circumferential positioning structure comprises an internal thread or an external thread provided at the end of the water jacket 7, and the end of the circumferential adjustment tool is provided with an external thread section cooperating with the internal thread or an internal thread section cooperating with the external thread. When the water jacket is assembled, the circumferential adjusting tool can be screwed into the internal thread or the external thread to adjust the angle of the water jacket, the circumferential adjusting tool is removed after the angular position is adjusted, and then the stop ring is installed, so that the circumferential angle of the water jacket 7 can be conveniently adjusted.
As another preferred embodiment, the first circumferential positioning structure includes a circumferential positioning hole or a circumferential positioning column provided at an end portion of the water jacket 7, and an end portion of the circumferential adjustment tool is provided with a plug fitting engaged with the circumferential positioning hole or a sleeve engaged with the circumferential positioning column. When the water jacket 7 is assembled, the angle of the water jacket can be adjusted through the circumferential positioning hole or the circumferential positioning column of the circumferential adjusting tool, the circumferential adjusting tool is removed after the angular position is adjusted, and then the stop ring 9 is installed, so that the circumferential angle of the water jacket 7 can be conveniently adjusted.
As another preferred embodiment, the first circumferential positioning structure comprises at least two grooves provided at the end of the water jacket 7, and the end of the circumferential adjustment tool is provided with a catch cooperating with the grooves. Similar to a thread adjusting mode, the angle adjustment of the water jacket 7 is realized through the assembly of the clamping jaws and the grooves of the water jacket, the circumferential adjusting tool is removed after the angle position is adjusted, and then the stop ring 9 is installed, so that the circumferential angle of the water jacket 7 can be conveniently adjusted.
As another preferred embodiment, the first circumferential positioning structure includes at least two protrusions provided at the end of the water jacket 7, and the end of the circumferential adjustment tool is provided with fitting holes that mate with the protrusions. Similar to the thread adjusting mode, the angle adjustment of the water jacket 7 is realized through the assembly of the assembly holes and the protrusions of the water jacket, the circumferential adjusting tool is removed after the angle position is adjusted, and then the stop ring 9 is installed, so that the circumferential angle of the water jacket 7 can be conveniently adjusted.
In a preferred embodiment, the second circumferential locating structure is a projection structure and a groove structure which are matched with each other. The positioning guide block 8 can play a role in positioning the water jacket 7, and the stop ring 9 can be directly installed without dismounting the positioning guide block 8 after the positioning guide block 8 is installed in place.
In a preferred embodiment, the second circumferential locating structure is a pin and a pin hole that are fitted to each other. Similar to the positioning function of the convex structure and the groove structure, the positioning pin and the pin hole can play the same positioning function.
Furthermore, the positioning pin is in interference fit with the pin hole, so that the positioning accuracy and stability are fully guaranteed.
Further, the positioning pins are arranged in the axial direction of the water jacket 7 or in the radial direction of the water jacket 7, and the accuracy and stability of positioning can be ensured regardless of the arrangement direction of each positioning pin.
Further, the positioning pins comprise a machine head positioning pin 11 and a water jacket positioning pin 10 which are matched with the positioning guide block 8, a machine head pin hole 13 matched with the machine head positioning pin 11 is formed in the machine head 2, and a water jacket pin hole 12 matched with the water jacket positioning pin 10 is formed in the water jacket 7. Specifically, the positioning pin can be preset on the positioning guide block 8, and can also be preset on the machine head and the water jacket.
In a preferred embodiment, the positioning guide block 8 is a step-shaped circular ring-shaped structure, the inner wall of the circular ring-shaped structure is in guiding fit with the outer wall of the drill shank 1, the small-diameter section of the circular ring-shaped structure is in plug fit with the assembly hole of the installation water jacket 7, and the large-diameter section of the circular ring-shaped structure is in plug fit with the assembly hole of the installation stop ring 9. The inner wall of the positioning guide block provides guide for the tail end of the drill rod tail, the drill rod tail guide is enhanced, the drill rod tail is more stable, meanwhile, the direct contact between the water jacket and the stop ring is avoided, the influence on the stop ring during drilling is reduced, the failure risk of the rock drill is reduced, the rock drilling efficiency of the rock drill is improved, the maintenance period of the rock drill is prolonged, and the working efficiency of the rock drill is improved.
Specifically, as shown in fig. 2 and 4, the positioning guide block 8 includes a small-diameter section axially corresponding to the water jacket 7, and a large-diameter section axially corresponding to the machine head 2, and the machine head 2 is provided with a positioning step 14 axially corresponding to the large-diameter section; the head positioning pin 11 is arranged at the outer edge part of the large-diameter section of the positioning guide block 8, and the water jacket positioning pin 10 is arranged on the end face of the small-diameter section of the positioning guide block 8.
In a preferred embodiment, the guide sleeve 3 is arranged between the outer wall of the drill bit shank 1 and the inner wall of the nose 2, two ends of the water jacket 7 are abutted between the guide sleeve 3 and the stop ring 9, the axial degree of freedom of the water jacket 7 can be limited by the guide sleeve 3 and the stop ring 9, the problem that the water jacket 7 is too close to a port and is prone to damage is avoided, and meanwhile, the problem that the water jacket 7 is too long to be positioned is also avoided. The preferred embodiment of the guide sleeve 3 is a guide copper sleeve.
In a preferred embodiment, the inner wall of the water jacket 7 is in sealing connection with the outer wall of the drill shank 1 through a sealing ring 4 or/and an O-shaped ring 5, preferably through the sealing ring 4; the outer wall of the water jacket 7 is connected with the inner wall of the machine head 2 in a sealing mode through an O-shaped ring 5 or/and a sealing ring 4, and the O-shaped ring 5 is preferably used for connecting in a sealing mode. The inner wall and the outer wall of the water jacket 7 are provided with corresponding sealing installation ring grooves 15.
Further, the front end of the water jacket 7 is provided with one seal, and the rear end of the water jacket 7 is provided with two seals.
A rock drill flushing system comprises the rock drill water jacket positioning guide mechanism in any one of the technical schemes.
A rock drill comprises the rock drill water jacket positioning guide mechanism in any one of the technical schemes.
The present invention is not exhaustive and is well known to those skilled in the art.
The foregoing shows and describes the general principles, essential features, and advantageous effects of the present invention. 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 (13)
1. The utility model provides a rock drill water jacket location guiding mechanism which characterized in that:
a first circumferential positioning structure is arranged at the outer end part of the water jacket (7), and a circumferential adjusting tool is matched with the first circumferential positioning structure when the water jacket (7) is installed;
or a positioning guide block (8) is arranged between the water jacket (7) and the stop ring (9), and second circumferential positioning structures are arranged between the positioning guide block (8) and the water jacket (7) and between the positioning guide block and the machine head (2).
2. A rock drill water jacket positioning guide mechanism according to claim 1, characterized in that: the first circumferential positioning structure comprises an internal thread or an external thread arranged at the end part of the water jacket (7), and the end part of the circumferential adjusting tool is provided with an external thread section matched with the internal thread or an internal thread section matched with the external thread.
3. A rock drill water jacket positioning and guiding mechanism as recited in claim 1, characterized in that: the first circumferential positioning structure comprises a circumferential positioning hole or a circumferential positioning column arranged at the end part of the water jacket (7), and the end part of the circumferential adjusting tool is provided with a plug-in connector matched with the circumferential positioning hole or a sleeve matched with the circumferential positioning column.
4. A rock drill water jacket positioning and guiding mechanism as recited in claim 1, characterized in that: the first circumferential positioning structure comprises at least two grooves arranged at the end part of the water jacket (7), and the end part of the circumferential adjusting tool is provided with clamping jaws matched with the grooves.
5. A rock drill water jacket positioning and guiding mechanism as recited in claim 1, characterized in that: the first circumferential positioning structure comprises at least two protrusions arranged at the end part of the water jacket (7), and the end part of the circumferential adjusting tool is provided with assembling holes matched with the protrusions.
6. A rock drill water jacket positioning guide mechanism according to claim 1, characterized in that: the second circumferential positioning structure is a protruding structure and a groove structure which are matched with each other.
7. A rock drill water jacket positioning and guiding mechanism as recited in claim 1, characterized in that: the second circumferential locating structure is a locating pin and a pin hole which are matched with each other.
8. A rock drill water jacket positioning and guiding mechanism as recited in claim 7, characterized in that: the positioning pin is in interference fit with the pin hole.
9. A rock drill water jacket positioning guide mechanism according to claim 7 or 8, characterized in that: the positioning pin is arranged along the axial direction of the water jacket (7) or along the radial direction of the water jacket (7).
10. A rock drill water jacket positioning guide mechanism as claimed in claim 9 wherein: the positioning pin comprises a machine head positioning pin (11) and a water jacket positioning pin (10) which are matched with the positioning guide block (8), a machine head pin hole (13) matched with the machine head positioning pin (11) is formed in the machine head (2), and a water jacket pin hole (12) matched with the water jacket positioning pin (10) is formed in the water jacket (7).
11. A rock drill water jacket positioning guide mechanism according to any one of claims 1-8, 10 wherein: the positioning guide block (8) is of a step-shaped annular structure, the inner wall of the annular structure is in guide fit with the outer wall of the drill shank (1), the small-diameter section of the annular structure is in plug fit with the assembly hole of the installation water jacket (7), and the large-diameter section of the annular structure is in plug fit with the assembly hole of the installation stop ring (9).
12. A rock drill flushing system characterized by: comprising a rock drill water jacket positioning guide mechanism according to any one of claims 1 to 11.
13. A rock drill characterized by: comprising a rock drill flushing system according to claim 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222375922.3U CN217841533U (en) | 2022-09-07 | 2022-09-07 | Rock drill water jacket positioning guide mechanism, rock drill flushing system and rock drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222375922.3U CN217841533U (en) | 2022-09-07 | 2022-09-07 | Rock drill water jacket positioning guide mechanism, rock drill flushing system and rock drill |
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| Publication Number | Publication Date |
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| CN217841533U true CN217841533U (en) | 2022-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222375922.3U Active CN217841533U (en) | 2022-09-07 | 2022-09-07 | Rock drill water jacket positioning guide mechanism, rock drill flushing system and rock drill |
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| CN (1) | CN217841533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116752904A (en) * | 2023-06-26 | 2023-09-15 | 徐州徐工基础工程机械有限公司 | Double-layer structured drill shank and rotary system |
-
2022
- 2022-09-07 CN CN202222375922.3U patent/CN217841533U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116752904A (en) * | 2023-06-26 | 2023-09-15 | 徐州徐工基础工程机械有限公司 | Double-layer structured drill shank and rotary system |
| CN116752904B (en) * | 2023-06-26 | 2024-03-08 | 徐州徐工基础工程机械有限公司 | Double-layer structured drill shank and rotary system |
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