CN219774076U - Hydraulic rock drill bit tail - Google Patents
Hydraulic rock drill bit tail Download PDFInfo
- Publication number
- CN219774076U CN219774076U CN202320495572.6U CN202320495572U CN219774076U CN 219774076 U CN219774076 U CN 219774076U CN 202320495572 U CN202320495572 U CN 202320495572U CN 219774076 U CN219774076 U CN 219774076U
- Authority
- CN
- China
- Prior art keywords
- drill
- hole
- drill shank
- shank
- water injection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011435 rock Substances 0.000 title claims abstract description 21
- 238000002347 injection Methods 0.000 claims abstract description 23
- 239000007924 injection Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000872 buffer Substances 0.000 claims abstract description 15
- 239000002352 surface water Substances 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000006173 Good's buffer Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a drill shank of a hydraulic rock drill, which comprises a drill shank front part, a connecting neck and a drill shank tail part which are sequentially arranged and integrally formed, wherein a spiral wing plate is arranged on the drill shank tail part, a guide hole and a drill shank threaded hole which is coaxially arranged with the guide hole are arranged in the drill shank front part, a shaft pin through hole for fixing a drill shank is arranged in the drill shank front part, a buffer spring is arranged at the tail end of the drill shank threaded hole, and a water injection hole communicated with the drill shank threaded hole is arranged in the drill shank front part.
Description
Technical Field
The utility model relates to the technical field of hydraulic rock drills, in particular to a drill shank of a hydraulic rock drill.
Background
The hydraulic rock drill is necessary equipment in civil engineering, is used for drilling rock and the like in the fields of mines and geology, and comprises an impact mechanism, a buffer mechanism, a rotation mechanism and the like, and the reasonable hydraulic rock drill mechanism design can improve the working efficiency of the hydraulic rock drill and prolong the service life of the hydraulic rock drill.
The drill shank is a necessary structure of the hydraulic rock drill, is usually matched with the drill shank, is lack of a buffer structure in the prior art, and is easy to damage a thread part of the drill shank in use, so that the service lives of the drill shank and the drill shank are influenced.
Disclosure of Invention
Aiming at the technical defects, the utility model aims to provide a hydraulic rock drill shank.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a drill shank of a hydraulic rock drill, which comprises a drill shank front part, a connecting neck and a drill shank tail part which are sequentially arranged and integrally formed, wherein a spiral wing plate is arranged on the drill shank tail part, a guide hole and a drill shank threaded hole which is coaxially arranged with the guide hole are arranged in the drill shank front part, a shaft pin through hole for fixing a drill shank is arranged in the drill shank front part, a buffer spring is arranged at the tail end of the drill shank threaded hole, and a water injection hole communicated with the drill shank threaded hole is arranged on the drill shank front part.
Preferably, the shaft pin through hole is arranged at the front end of the front part of the drill shank corresponding to the guide hole.
Preferably, the water injection hole comprises a coaxial water injection hole coaxially arranged with the drill rod threaded hole and an end surface water injection hole vertically communicated with the coaxial water injection hole.
Preferably, the inner diameter of the coaxial water injection hole is smaller than the inner diameters of the end face water injection hole and the drill rod threaded hole.
Preferably, the buffer spring is a high-strength spring.
Preferably, the spiral wing plates are uniformly arranged along the periphery of the tail of the drill shank.
The utility model has the beneficial effects that:
1. according to the utility model, the buffer spring is arranged at the tail end of the drill rod threaded hole, and the pin shaft and the threads are matched, so that the looseness of the drill rod caused by vibration and the like can be effectively supplemented, a good buffer effect can be achieved, and the service life of the drill rod tail is further prolonged.
2. The utility model adopts a double fixing mode of the screw thread and the pin shaft, can better fix the drill rod and reduce the damage of the axial movement of the drill rod to the screw thread.
3. The drill rod and the drill shank can be effectively cooled by arranging the water injection holes, so that the service life of the drill rod and the drill shank is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a hydraulic rock drill bit shank according to an embodiment of the present utility model;
reference numerals illustrate:
1106. a guide hole; 1107. a shaft pin through hole; 1108. drill rod threads; 1109. a buffer spring; 1110. a water injection hole; 11101. a coaxial water injection hole; 11102. an end face water injection hole; 1111. a connecting neck; 1112. screw wing plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, this embodiment provides a hydraulic rock drill shank, including a shank front portion, a connecting neck 1111 and a shank tail portion which are sequentially arranged and integrally formed, wherein the forming of the shank front portion, the connecting neck 1111 and the shank tail portion adopts the existing mode which is well known to those skilled in the art, not described in detail herein, a spiral wing plate 1112 is arranged on the shank tail portion, the spiral wing plate 1112 is uniformly arranged along the periphery of the shank tail portion in the existing mode which is well known to those skilled in the art, a guide hole 1106 and a shank threaded hole 1108 which is coaxially arranged with the guide hole 1106 are arranged in the shank front portion, a shaft pin through hole 1107 for fixing a shank is arranged in the shank front portion, a buffer spring 1109 is arranged at the tail end of the shank threaded hole 1108, a water injection hole 1110 which is communicated with the shank threaded hole is arranged on the shank front portion, the water injection hole 1110 comprises a coaxial hole 11101 which is coaxially arranged with the shank threaded hole 1108, and an end face water injection hole 11102 which is vertically communicated with the coaxial hole 11101, and the inner diameter of the water injection hole 11102 is smaller than the inner diameter of the shank threaded hole 11102.
The length of the drill rod threaded hole 1108 of this embodiment is 2.5 times the length of the guide hole 1106.
The shaft pin through hole 1107 is provided at the front end of the shank front portion corresponding to the guide hole 1106.
The buffer spring 1109 is a high-strength spring, and the length of the buffer spring 1109 in the embodiment is one tenth of the length of the drill rod threaded hole 1108.
When the drill rod is mounted, the drill rod is in threaded connection with the drill rod threaded hole 1108, a fixing pin is inserted and fixed when a pin hole on the drill rod corresponds to the shaft pin through hole 1107, and at the moment, the tail of the drill rod is in contact with the buffer spring 1109 and the buffer spring compresses and abuts against the tail of the drill rod.
The drill rod is fixed by the pin and is fixed by the screw, and meanwhile, the drill rod is loosened under the influence of external factors such as vibration, and at the moment, the buffer spring 1109 can counteract axial looseness of the drill rod caused by related vibration, and the drill rod is continuously jacked, so that screw damage caused by the axial looseness is reduced.
Compared with the existing drill bit tail structure, the service life of the drill bit tail structure can be prolonged by 10% -15%.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (6)
1. A hydraulic rock drill shank, characterized by: including just integrated into one piece's drill shank front portion, connecting neck (1111), the drill shank afterbody that sets gradually, be provided with spiral pterygoid lamina (1112) on the drill shank afterbody, be provided with guiding hole (1106) in the drill shank front portion, with coaxial drill rod screw hole (1108) that set up of guiding hole (1106), the drill shank front portion is provided with pivot through-hole (1107) that are used for fixed drill rod, the end of drill rod screw hole (1108) is provided with buffer spring (1109), be provided with water injection hole (1110) of intercommunication drill rod screw hole on the drill shank front portion.
2. A hydraulic rock drill shank according to claim 1, wherein: the shaft pin through hole (1107) is arranged at the front end of the front part of the drill shank corresponding to the guide hole (1106).
3. A hydraulic rock drill shank according to claim 1, wherein: the water injection hole (1110) comprises a coaxial water injection hole (11101) coaxially arranged with the drill rod threaded hole (1108), and an end surface water injection hole (11102) vertically communicated with the coaxial water injection hole (11101).
4. A hydraulic rock drill bit shank according to claim 3, wherein: the inner diameter of the coaxial water injection hole (11101) is smaller than the inner diameters of the end face water injection hole (11102) and the drill rod threaded hole (1108).
5. A hydraulic rock drill shank according to claim 1, wherein: the buffer spring (1109) is a high-strength spring.
6. A hydraulic rock drill shank according to claim 1, wherein: the spiral wing plates (1112) are uniformly arranged along the periphery of the tail of the drill shank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320495572.6U CN219774076U (en) | 2023-03-15 | 2023-03-15 | Hydraulic rock drill bit tail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320495572.6U CN219774076U (en) | 2023-03-15 | 2023-03-15 | Hydraulic rock drill bit tail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219774076U true CN219774076U (en) | 2023-09-29 |
Family
ID=88103497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320495572.6U Active CN219774076U (en) | 2023-03-15 | 2023-03-15 | Hydraulic rock drill bit tail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219774076U (en) |
-
2023
- 2023-03-15 CN CN202320495572.6U patent/CN219774076U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240218 Address after: 232000 Dongshan, Tian Jia An District, Huainan, Anhui Patentee after: HUAINAN MINING INDUSTRY (GROUP) Co.,Ltd. Country or region after: China Patentee after: Anhui University of Science and Technology Address before: Xie Qiao Town, Yingshang County, Fuyang City, Anhui Province, 236221 Patentee before: Huainan Mining (Group) Co.,Ltd. Xieqiao Coal Mine Country or region before: China Patentee before: Anhui University of Science and Technology |