CN207905844U - Mine bolt drilling depth limiting device - Google Patents
Mine bolt drilling depth limiting device Download PDFInfo
- Publication number
- CN207905844U CN207905844U CN201820321845.4U CN201820321845U CN207905844U CN 207905844 U CN207905844 U CN 207905844U CN 201820321845 U CN201820321845 U CN 201820321845U CN 207905844 U CN207905844 U CN 207905844U
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- spare part
- rod spare
- anchor pole
- drilling
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model belongs to coal mine roadway anchor bolt construction field, more particularly to a kind of mine bolt drilling depth limiting device, solve the problems, such as coal mine roadway armature boring construction when due to hole depth control it is improper cause waste of material, cost of ton coal increase and operating personnel's labor intensity it is big, anchor pole driver drilling rod spare part including threaded connection and locating part, drilling rod spare part rear portion carries external screw thread, locating part includes the nut and spacing collar for being arranged concentrically and being welded and fixed, drilling rod spare part rear portion is provided with drilling rod, and drilling rod runs through locating part.The utility model enormously simplifies the task difficulty of operating personnel so that anchor pole protruded length meets design specification requirement, improves the yield rate of anchor pole operation；Meanwhile certain anti-function that fractures is played to drilling rod spare part and drilling rod junctions in armature boring operation.
Description
Technical field
The utility model belongs to coal mine roadway anchor bolt construction field, and in particular to a kind of mine bolt drilling depth limit dress
It sets.
Background technology
According to《Coal entry anchor rod support administrative provisions》39th article of the 3rd regulation：Anchor bolt construction drilling depth, which has to comply with, to be set
Meter requires, and bolthole depth error should be within the scope of 0~50mm.In the headwork of underground, armature boring depth is difficult control, by
The quality of rockbolt installation is will have a direct impact in armature boring depth, causes the protruded length overlength having after rockbolt installation, some outer
It is inadequate to reveal length.It is provided in excavation operation regulation：Anchor pole protruded length should between 10mm~50mm, more than needed after 50mm weight
New complement anchor pole, anchor pole protruded length not enough then need to handle coal petrography wall with pneumatic pick, and processing fastening again reaches requirement.By
In lacking necessary hole depth control device, operating personnel is difficult to accomplish very to reach design requirement in operation, is encountering piece
Side and coal bed joints are just more difficult to grasp the depth of armature boring, often will appear undesirable anchor pole, are set for not meeting
The anchor pole that meter requires must carry out reinforcement solutions, not only cause waste to support material in this way, cost of ton coal is made to increase, and
Operating personnel's labor intensity is increased, economic benefit is reduced, affects driving speed, while the anchor pole of complement excessively also can shadow
Ring the neat forming in entire tunnel.
In view of the above-mentioned problems, inventing a kind of armature boring depth limiting device of high performance-price ratio just seems of crucial importance.
Invention content
The utility model in order to solve coal mine roadway armature boring construction when due to hole depth control it is improper cause waste of material,
The problem that cost of ton coal increases and operating personnel's labor intensity is big, provides a kind of mine bolt drilling depth limiting device.
The utility model is achieved by the following technical solution：A kind of mine bolt drilling depth limiting device, including
The anchor pole driver drilling rod spare part and locating part of threaded connection, after anchor pole driver drilling rod accessory bag includes drilling rod spare part front and drilling rod spare part
Portion, drilling rod spare part front are connected with roof-bolter, and drilling rod spare part rear portion carries external screw thread, and locating part includes being arranged concentrically and welding admittedly
Fixed nut and spacing collar, nut are connect with drilling rod spare part rear portion, and spacing collar length is 10~50 centimeters, after drilling rod spare part
Portion is provided with drilling rod, and drilling rod runs through locating part.
Spacing collar is any one in stainless steel tube, welded tube or seamless steel pipe.
The specified features and advantageous effect that the utility model has compared with prior art are：
The utility model simple structure and reasonable design is connected locating part by the simple processing to anchor pole driver drilling rod spare part
It is connected on the external screw thread mulberry at drilling rod spare part rear portion, locating part includes the nut and limit casing being connect with drilling rod spare part, limit casing
Length according to anchor bolt construction when preset anchor pole protruded length determined.When roof-bolter carries out anchor in coal mine roadway
When bar operation, with deepening continuously for drilling rod, drilling depth is also constantly deepened, when exposed drilling rod is completely into tunnel coal petrography,
The spacing collar of locating part is contacted with coal petrography wall, stops drilling at this time, and drilling depth meets the requirements, is placed into hole when by anchor pole
When, just the protruded length of anchor pole is limit casing length.The operation that operating personnel are enormously simplified using the utility model is difficult
Degree is reduced since the improper caused waste of material of hole depth control and cost of ton coal increase so that anchor pole protruded length is met
Design specification requirement improves the yield rate of anchor pole operation；Meanwhile the utilization of the utility model effectively increases anchor pole driver drilling rod
The contact length of spare part and drilling rod in a disguised form reduces the stress concentration phenomenon in operation process, and the bonding strength of the two is made to increase,
It can be seen that the utility model plays drilling rod spare part and drilling rod junctions in armature boring operation certain anti-function that fractures, have
Effect improves safety guarantee of the operating personnel in bore operation construction.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of anchor pole driver drilling rod spare part in Fig. 1；
Fig. 3 is the structural schematic diagram of locating part in Fig. 1；
Fig. 4 is the usage state diagram of the utility model.
In figure：1- anchor pole driver drilling rod spare parts, 1.1- drilling rod spare parts front, 1.2- drilling rod spare parts rear portion, 1.3- external screw threads, 2-
Locating part, 2.1- nuts, 2.2- spacing collars, 3- drilling rods.
Specific implementation mode
The utility model is further elaborated in referring to Fig.1~Fig. 4, a kind of mine bolt drilling depth limiting device,
Anchor pole driver drilling rod spare part 1 including threaded connection and locating part 2, anchor pole driver drilling rod spare part 1 include drilling rod spare part front 1.1 and bore
Bar spare part rear portion 1.2, drilling rod spare part front 1.1 are connected with roof-bolter, and drilling rod spare part rear portion 1.2 carries external screw thread 1.3, locating part
2 include the nut 2.1 and spacing collar 2.2 for being arranged concentrically and being welded and fixed, and nut 2.1 is connect with drilling rod spare part rear portion 1.2, is limited
Position 2.2 length of sleeve is 10~50 centimeters, and drilling rod spare part rear portion 1.2 is provided with drilling rod 3, and drilling rod 3 runs through locating part 2.
When using the utility model operation, the anchor pole driver drilling rod spare part 1 of connection function need to will be played between roof-bolter and drilling rod 3
It optimizes, concrete mode is under the premise of ensureing that drilling rod spare part front 1.1 is connect with roof-bolter, by drilling rod spare part rear portion 1.2
Surface threading 1.3, anchor pole driver drilling rod spare part 1 connect locating part 2 by external screw thread 1.3, and locating part 2 is that a setting exists
Limiting device between anchor pole driver drilling rod spare part 1 and drilling rod 3, locating part 2 include connecting integral nut 2.1 and spacing collar
2.2, the length of spacing collar 2.2 is the size of the exposed coal petrography of anchor pole.When roof-bolter works, pass through anchor pole driver drilling rod spare part 1
Drilling rod 3 is driven to carry out bore operation, with deepening continuously for drilling rod 3, drilling depth is constantly deepened, until spacing collar 2.2
Until end is contacted with tunnel coal petrography, further, anchor pole is disposed into drilling and is bonded using cement slurry or resin
Fixation.
Wherein, armature boring depth is that the length after being contacted with tunnel coal petrography by spacing collar 2.2 determines.To ensure
The accuracy of armature boring depth need to ensure that spacing collar 2.2 and the contact of coal petrography level are the close contact with certain pressure,
It can be seen that spacing collar 2.2 should select the material with advantages of higher compressive strength, such as can be used in stainless steel tube, welded tube or seamless steel pipe
Any one.
Claims (2)
1. a kind of mine bolt drilling depth limiting device, it is characterised in that：Anchor pole driver drilling rod spare part including threaded connection（1）
And locating part（2）, anchor pole driver drilling rod spare part（1）Including drilling rod spare part front（1.1）With drilling rod spare part rear portion（1.2）, drilling rod is standby
Part front（1.1）It is connected with roof-bolter, drilling rod spare part rear portion（1.2）With external screw thread（1.3）, locating part（2）Including setting with one heart
The nut set and be welded and fixed（2.1）And spacing collar（2.2）, nut（2.1）With drilling rod spare part rear portion（1.2）Connection, limit
Sleeve（2.2）Length is 10~50 centimeters, drilling rod spare part rear portion（1.2）It is provided with drilling rod（3）, drilling rod（3）Through locating part
（2）.
2. mine bolt drilling depth limiting device according to claim 1, it is characterised in that：Spacing collar（2.2）For
Any one in stainless steel tube, welded tube or seamless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820321845.4U CN207905844U (en) | 2018-03-09 | 2018-03-09 | Mine bolt drilling depth limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820321845.4U CN207905844U (en) | 2018-03-09 | 2018-03-09 | Mine bolt drilling depth limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207905844U true CN207905844U (en) | 2018-09-25 |
Family
ID=63558069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820321845.4U Expired - Fee Related CN207905844U (en) | 2018-03-09 | 2018-03-09 | Mine bolt drilling depth limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207905844U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111535751A (en) * | 2020-04-16 | 2020-08-14 | 王豪暘 | Coal mine anchor rod drilling depth limiting device with anti-breaking function |
-
2018
- 2018-03-09 CN CN201820321845.4U patent/CN207905844U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111535751A (en) * | 2020-04-16 | 2020-08-14 | 王豪暘 | Coal mine anchor rod drilling depth limiting device with anti-breaking function |
| CN111535751B (en) * | 2020-04-16 | 2021-08-20 | 淮北林光钻探机电工程有限公司 | Coal mine anchor rod drilling depth limiting device with anti-breaking function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180925 Termination date: 20200309 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |