This standard specifies the type and size, material and hardness, appearance and surface roughness, performance test, marking and packaging of shell-type electric hammer drills. This standard applies to shell-type electric hammer drills with a diameter of 25~150mm for drilling holes in materials such as bricks, blocks and lightweight walls. JB/T 8368.2-1996 Shell-type electric hammer drill JB/T8368.2-1996 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T8368.2-96
Sheathed Electric Hammer Drill
1996-04-22 Issued
Ministry of Machinery Industry of the People's Republic of China
1996-07-01 Implementation
JB/T B368. 2 - 96
Appendix A of this standard is the appendix of the standard.
This standard is proposed and managed by the National Technical Committee for Standardization of Tools, and the responsible drafting unit of this standard is Chengdu Gongqi Research Institute. The drafting units of this standard are Chaoxi Tool Factory and Shanghai Port Yangtze River Second Tool Factory, and the main drafters of this standard are Guo Bing Guo Mei Automobile Construction Science and Technology. This standard will be implemented on July 1, 1995.
1 Standard
Standard of the Machinery Industry of the People's Republic of China
Shell-type electric hammer drill
JB/T B368. 2-96
This standard specifies the type and size, material and hardness, appearance and surface distortion, non-energy test and marking and packaging technical specifications of the sheath-type electric drill.
This standard is suitable for long electric chain drills with a diameter of 25~15cm for drilling on materials such as fast and wheel quality. 2 Referenced standards
The clauses contained in the following standards are all standard clauses through prominent reference in this standard. When the standard is published, the versions shown are all valid. All standards will be difficult to verify, the name of the technical standard should explore the possibility of using the following standards to measure the new version, JB/T8368.1-06 electric chain drill
JRT 8A6996
YBRR3··77
Carbide blades for impact drills and electric drills
Carbide small ore and geological tool products
Shell type electric hammer drill straight color
Shell type is for the long benefit,
The maximum extension length of the shell type electric hammer drill;
The total length of the sleeve head electric hammer drill,
4 Types and sizes
Shell type key drill wins the type and size must be measured at the unique code of Figure 1 and Table 14.
Shell type electric chain is made of carbide blades at the center of the cloud oil or protective layer, and 2 is the estimated length of each record. [31
Approved by the Ministry of Machinery Industry in 1996-422
Implemented on July 1, 1996
Approved by the Ministry of Machinery Industry in 1996-422
Implemented on July 1, 1996
Approved by the Ministry of Machinery Industry in 1996-422
Implemented on July 1, 1996
JDT 8368.296
_G._20.15n
The type and size of the connecting handle shall comply with the provisions of 4.2 of JB/T368.1. The position tolerance of the socket is given in Table 2. 2
Note: according to the handle part, the light limit of the sleeve axis
Stationary office
The outer limit of the force measurement
For the diameter of the shaft
Figure runout
Western alloy blade surface
For the belt surface of the knife
Runout
25--150
25--5C
5 --52
_- RG--1G0
>7G0.--: 50
25--50
>50 ~8u
1C--20
Long collar test
: True type transfer egg public reference inner grid square iron more time A's total! , 2
Long series
3c3-40
Super long series.
0d~350
JB/ 8368. 2—96
4.4 Marking display screen
Diameter -65mm. Length = 2cmmu. Special electric drill set electric drill 5200-E83-56 with E-type connecting part
5 Materials and hardness
5.1 The cutting blade material shall be made of YBa83, YG8, YG8C or YG11C grade cemented carbide, and the mechanical properties and metallographic structure and other related cutting blade numbers shall be marked with the relevant cutting blade numbers. The high-quality carbide blades for center drill parts shall be in accordance with the provisions of JB/T8369
5.2 The body material of the base cutter and center guide shall be made of 4R steel with equal or higher performance than other grades of alloy, and the connecting rod shall be made of 4R steel or other grades of alloy with equal or higher performance than other grades. 5.3 The body of the drill and the center drill shall be heat treated from the bottom of the sheet 2mm away to the book direction, the hardness of the drill shall not be less than 2UUFB, and the hardness of the center drill shall not be less than 35HRC. The hardness of the reverse heat treatment shall not be more than 40ITRC. 6 Appearance and surface properties
61 The welding of the set and the center of the hard gold sheet shall be carried out according to the welding rate. There shall be no cracking, wound, slag, pores and other technical phenomena. The front edge shall be sharp and there shall be no defects such as long-term performance defects. 6 The surface torsion of the aluminum set electric hammer shall be connected with the above example: the front and rear R of the cutting front edge is 12.5m:
Connection height positioning deletion R.3.2um.
6.3 The surface of the electric drill shall be treated with blackening or quality shape, etc. Performance test
Batch production of the hammer, each batch shall be tested by non-capable sampling. 7.1 Test parts
7.1.1 Test machine: The test machine should comply with the relevant standards. 1.2 Test number: 5 samples
1.3 Test materials: 1W~200 mortar blocks with the same strength as other building materials, 7.1.4i
Test specification: The test specification is given in 3, 7.1.5 Test method: Stand still.
> 55 -- 3c
7.2 Test result evaluation
"Strike loss
Titanium/rin
Automotive Institute
Station Kong Jiao
After the test, the drill bit should not have the phenomenon of edge loss, falling off, cracking, etc. If there is! The parts do not meet the above requirements, the test result of the drill bit will be judged as invalid.
8 Marking and packaging
8. 1 Marking
The drill bit should be marked on the lithium battery station,
) the manufacturer's trademark;
h) the manufacturer's trademark,
The packaging box should be marked:
JB/T B368. 2-96
a) Name of the manufacturer before the manufacturer is announced, and the address is not marked; b) Marking of the set type electric hammer station:
c) Material code or brand of the parts:
e) Year and month of manufacture.
8.2 Packaging
Electric chain pins should be treated with protective clothing before packaging, and the packaging must be light to prevent damage during transportation. 8.2.1
JB/T 8368.2-96
Appendix A
Quick test method for the position tolerance of sleeve electric chain drill (standard record)
The test method for the position tolerance of the sleeve electric chain drill is given in Table A1. Table 1
Inspection items
Quick connection handle belt
Position pair sleeve
Tool picking longitudinal
Yang evening movement
Quality improvement platform Jinmen
Test file
Clean grass late Sichuan piece sound type tool body groove beat
Reverse section car V-shaped length. Axis fast running fixed
Quality will be higher than the sound head
Dead part fixed excellent country (rate increase 25 mm
place). The English turn pin drill measurement dial indicator is careful to the large amount of the common supply is the light medical way and error
will bring the blade of the sleeve type small parts structure groove
the outside state to the ring type
! Part of the effect is on the V system iron, turn to position, then the shop will carry out the vertical rotation of the dial indicator to measure the vertical rotation of the light
people's medical dynamic
quality combination will be the knifewwW.bzxz.Net
piece to the type
knife axis fresh
surface runout
the actual knife practice piece outside the same middle, left lift
Turn the stop lightly, the percentage indicates the position quantity
is large, and then the next stop period
step, change the above question quantity, when the percentage difference of the flow number is the dynamic
error,
the blade of the pipe cutter body
part is placed on the V-shaped money: the axis is still fixed
position, and then the percentage is installed to the end point of the whole
sleeve type small piece book end face middle, the name of the joint conversion electric station, the fast percentage indicates the direct job
large, after obtaining the electric connection pin down a tooth, repeat the above excess,Note: The bottom of the V-shaped electric drill should not be larger than 15mm to detect the performance of the instrument; V-shaped iron frame and fixed frame: V-shaped iron frame: V-shaped iron frame and fixed frame fixed frame fixed block
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