CN2504388Y - Uniform strength rockbolt body - Google Patents
Uniform strength rockbolt body Download PDFInfo
- Publication number
- CN2504388Y CN2504388Y CN01234413.3U CN01234413U CN2504388Y CN 2504388 Y CN2504388 Y CN 2504388Y CN 01234413 U CN01234413 U CN 01234413U CN 2504388 Y CN2504388 Y CN 2504388Y
- Authority
- CN
- China
- Prior art keywords
- rod body
- strength
- section
- thread
- utility
- 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
- 239000002184 metal Substances 0.000 claims abstract description 3
- 238000005065 mining Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
Description
本实用新型属于机械制造技术领域，是用于矿山井下采掘巷道的一种新型支护材料，具体涉及一种等强锚杆体。The utility model belongs to the technical field of mechanical manufacturing, and is a novel support material used for underground mining roadways in mines, in particular to an equal-strength bolt body.
目前，井下支护常用的锚杆体，螺纹段与光面段的抗拉强度不相等，标准规定尾部螺纹承载力应不小于杆体母材破断力的70％，大量的试验表明，原有锚杆都达到此项规定，平均达到73％，这样就造成了锚杆体螺纹段强度比光面段低的问题，加之配以普通螺母，降低了锚杆体强度，由于采用切削法加工，加大了支护成本和钢材资源的浪费。At present, the tensile strength of the bolt body commonly used in downhole support is not equal between the threaded section and the smooth surface section. The standard stipulates that the bearing capacity of the tail thread should not be less than 70% of the breaking force of the base metal of the rod body. A large number of tests have shown that the original anchor All the rods meet this requirement, with an average of 73%, which causes the problem that the strength of the threaded section of the anchor body is lower than that of the smooth surface. In addition, it is equipped with ordinary nuts, which reduces the strength of the anchor body. Increased support costs and waste of steel resources.
本实用新型的目的就是为弥补以上不足，提供的一种结构合理，锚杆体螺纹段的抗拉强度高，能达到或大于光面段强度的等强锚杆体。The purpose of this utility model is to make up for the above deficiencies, to provide an equal-strength anchor body with reasonable structure, high tensile strength of the threaded section of the anchor body, which can reach or exceed the strength of the smooth section.
本实用新型是这样实现的，等强锚杆体为金属体，杆体尾段设置为螺纹体(2)，杆体另一段设置为光面体(3)，与螺母(1)组成，其特征在于螺纹体(2)的螺纹直径比标准直径小0.2——0.8mm，螺母(1)设置为加厚螺母。The utility model is realized in this way, the equal-strength anchor body is a metal body, the tail section of the rod body is set as a threaded body (2), and the other section of the rod body is set as a smooth body (3), which is composed of a nut (1), and is characterized in that the thread The thread diameter of the body (2) is 0.2-0.8mm smaller than the standard diameter, and the nut (1) is set as a thickened nut.
采用本实用新型的等强锚杆体，具有螺纹段的抗拉强度高，能达到或大于光面段强度的优点，节省了螺纹段底经加工工艺，产品质量稳定的作用。The equal-strength bolt body of the utility model has the advantages of high tensile strength of the threaded section, which can reach or exceed the strength of the smooth surface section, saves the processing technology of the bottom of the threaded section, and stabilizes the product quality.
附图说明Description of drawings
附图为等强锚杆体结构图The attached picture is the structure diagram of equal-strength anchor body
图中：1、螺母，2、螺纹体，3、光面体，In the figure: 1, nut, 2, threaded body, 3, smooth body,
如附图所示的等强锚杆体，选择直径为16mm(可按需要选择)的圆钢，截成杆体所需的长度，在杆体的一端直接滚压成规格为18mm的螺纹体(2)，螺纹的直径为17.2——17.8mm之间，比标准螺纹小0.2——0.8mm，使用与之相配套的螺母(1)，其规格为18mm，厚度为等强杆体所需的厚度，另一段设置为光面体(3)。For the equal-strength anchor rod body shown in the attached figure, select round steel with a diameter of 16mm (can be selected according to needs), cut it into the required length of the rod body, and roll directly at one end of the rod body into a threaded body with a specification of 18mm (2 ), the diameter of the thread is between 17.2-17.8mm, which is 0.2-0.8mm smaller than the standard thread, and the matching nut (1) is used, the specification is 18mm, and the thickness is the thickness required by the equal-strength rod body. The other segment is set to a glossy body (3).
本实用新型的等强锚杆体特别实用于一般机械加工企业生产。实应于矿山开采巷道支护。The equal-strength anchor rod body of the utility model is particularly applicable to the production of general mechanical processing enterprises. It should be used in mining roadway support.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01234413.3U CN2504388Y (en) | 2001-08-21 | 2001-08-21 | Uniform strength rockbolt body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01234413.3U CN2504388Y (en) | 2001-08-21 | 2001-08-21 | Uniform strength rockbolt body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2504388Y true CN2504388Y (en) | 2002-08-07 |
Family
ID=33647901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01234413.3U Expired - Fee Related CN2504388Y (en) | 2001-08-21 | 2001-08-21 | Uniform strength rockbolt body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2504388Y (en) |
-
2001
- 2001-08-21 CN CN01234413.3U patent/CN2504388Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2504388Y (en) | Uniform strength rockbolt body | |
| CN2584641Y (en) | Rope ground tackle | |
| CN2174566Y (en) | Anchoring-bolt with steel wire rope structure | |
| CN2327839Y (en) | Buffer with steel tube and lead core | |
| CN2435451Y (en) | Large-diameter steel strand ground tackle | |
| CN2395822Y (en) | Drawing mould for hard alloy | |
| CN205330007U (en) | Threaded extrusion anchor device | |
| CN2635617Y (en) | Variable-pitch screw | |
| CN2635618Y (en) | Reducing screw | |
| CN2428611Y (en) | Plastic nail | |
| CN2387303Y (en) | Expansion sheet bolt | |
| CN217967748U (en) | Fixing mechanism is used in production of environment-friendly refractory material | |
| CN2488652Y (en) | Combined piston rod | |
| CN2426015Y (en) | Complete helix screw anchor rod | |
| CN2500854Y (en) | Expansion bolt | |
| CN88201939U (en) | Extruded anchoring tool | |
| CN2527346Y (en) | High efficiency oval shaped grinding ball | |
| CN2794001Y (en) | Stand of lighting arrester line | |
| CN2747765Y (en) | Cast yoke billet of small generator | |
| CN201358988Y (en) | Dual-head threaded fastener | |
| CN2081884U (en) | Improved Rod Body Tensible Anchor Rod | |
| CN2806858Y (en) | Multi-edge head bolt | |
| CN212029139U (en) | Energy-saving ultra-thin aluminum profile | |
| CN2455935Y (en) | Equal strength anchor rod | |
| CN2837411Y (en) | Screw shearing stud |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |